JP6426508B2 - Outlet formation device - Google Patents

Description

  The present invention relates to an outlet forming apparatus which is installed with respect to a through hole drilled in a wall material and for forming an outlet for wiring and piping in the through hole.

  Conventionally, wiring and piping are performed so that wiring and piping materials are drawn out from through holes formed in the wiring box, distribution box, and wall materials of a building. When the wiring / pipe material is wired / piped in the through hole, there is a possibility that the wiring / pipe material may be rubbed and damaged at the corner of the edge (hole edge) of the through hole. Therefore, a bellmouth or wire passing bushing is disposed in the through hole to protect the cable from the hole edge of the box wall material. That is, in order to protect the wiring / pipe material, various outlet forming apparatuses are used to form the wiring / pipe material outlet in the through hole.

  For example, Patent Document 1 discloses a bushing (51, 61) as a fixture fixed to a wall hole (see FIGS. 7 and 8 of Patent Document 1). In the bushing (51), an insertion opening (53) to be inserted into the through hole (43) of the wall (42) of the wiring box (41) is formed on one end side of the short substantially cylindrical main body (52) An annular plate-shaped flange portion (54) is provided on the side to be in contact with the wall front edge (44) of the through hole (43). In addition, at four places equally spaced in the circumferential direction in the main body (52), the insertion opening is formed in the contact surface (55) that contacts the wall front side peripheral edge (44) of the through hole (43) in the collar portion (54) An elastic piece (56) is erected toward the (53) side. The elastic piece (56) is integrally provided at its free end side, that is, at the end on the insertion opening (53) with a locking claw (57) resiliently locked to the wall back side peripheral edge (45) of the through hole (43). It is done. And, in the central space of the annular plate-shaped collar (54), a protective film (58) in which a notch is formed radially from the central small hole (59) toward the outer peripheral side is integrally provided. The protective film (58) permits insertion of the cable (P) and prevents dust, water and the like from entering the wiring box (41) from the outside. On the other hand, the bushing (61) is composed of two members of a pair of bolt bodies (62) and a nut body (63). The bolt body (62) is formed of a cylindrical body (64) having an external thread on the outer surface, and a flange portion (65) having a central hole and integrally formed at one end of the cylindrical body (64). The internal thread formed on the inner surface of the nut body (63) is screwed onto the external thread of the outer surface of the bolt body (62) and assembled with the bolt body (62). In addition, the code | symbol of patent document 1 was shown in ().

JP, 2008-193793, A

  In one bushing (51) of Patent Document 1, when wiring the cable (P) to the wiring box (41), the protective film (58) is formed by deforming a tongue formed on the protective film (58). Through the central small hole (59) of the Therefore, when a thick cable or a large number of cables are inserted, the tongue piece interferes, and there is a possibility that the bushing (51) may come out of the through hole (43) at the time of wiring. Moreover, even when the cable (P) is not wired, the sealing of the through hole (43) by the protective film (58) is incomplete, and there is a risk that insects and dust may enter the inside of the piping box (41). there were. In the other bushing (61), since a tongue is not formed, a thick cable or many cables can be inserted into the central hole. However, when a thin cable or a small number of cables are pulled out, a large gap is formed between the inner periphery of the central hole and the cables. Therefore, it is not possible to prevent dust and insects from entering the wiring box (41) while the cable is wired. Similarly, even when the cable (P) is not wired, there is a risk that insects and dust may enter the inside of the piping box (41) through the central hole. Therefore, in order to seal the through hole (43), it is necessary to separately prepare a lid without a hole. That is, the conventional outlet forming apparatus (bushings (51, 61)) can not cope with various diameters and numbers of wiring and piping materials in one apparatus, and when wiring and piping materials are not provided. The through hole can not be completely sealed. Therefore, the operator had to prepare three different members (bushing, lid) in order to be able to cope with each situation.

  The present invention has been made to solve the above-mentioned problems, and the object thereof is to cope with wiring and piping materials of various disposition forms, and to penetrate when wiring and piping materials are not disposed. It is an object of the present invention to provide an outlet forming device capable of completely sealing the hole.

The outlet forming apparatus according to claim 1 is an outlet forming apparatus for forming an outlet of a wiring / pipe material in a through hole,
A frame fixed to a through hole, including a hollow cylindrical portion that is disposed in the through hole and that defines an insertion path of the wiring / pipe material having both ends open, and a covering portion that covers the end edge of the through hole Body,
An attachment part detachably attached to the frame, and a closure including a flexible deformable and breakable membrane-like closure part,
When the wiring and piping material are not disposed in the through hole, the closing body is attached to the frame and the closing portion can close the opening of the insertion path,
When the wiring and piping material is disposed in the through hole in a state where the closing body is attached to the frame, the closing portion is broken, and the broken closing portion is between the outer surface of the wiring and piping material and the inner surface of the insertion path. An outlet that is narrower than the opening of the insertion path ,
When wiring and piping material are disposed in the through hole in a state where the closing body is not attached to the frame, the frame functions as an extended outlet for wiring and piping material, and the inner surface of the frame is wiring and piping It is characterized in that it is constituted by a smooth surface so as not to be damaged even in sliding contact with the material .

  The outlet forming device according to claim 2 is the outlet forming device according to claim 1, wherein the penetrating formed in the plate-like wall material in cooperation with the outwardly extending flange portion of the covering portion The apparatus is characterized by further comprising a holding body for holding the periphery of the hole.

  According to a third aspect of the present invention, in the outlet formation apparatus according to the first or second aspect, the attachment portion is formed in a cylindrical shape inserted into the hollow cylindrical portion of the frame. It features.

  The outlet formation device according to claim 4 is characterized in that, in the outlet formation device according to claim 3, the attachment portion is attached by being pressed into the hollow cylindrical portion of the frame. .

  The outlet formation device according to claim 5 is the outlet formation device according to claim 3 or 4, wherein the attachment portion is cylindrical and is formed longer than the distance between both ends of the frame, and A closed portion is formed at one end, and an engaging convex portion protruding outward of the attachment portion is formed at the other end of the closed body so as to engage with the end surface of the hollow cylindrical portion of the frame. It is characterized by

  The outlet formation device according to claim 6 is characterized in that, in the outlet formation device according to claim 3 or 4, the attachment portion is formed shorter than the distance between both ends of the frame. .

  According to a seventh aspect of the present invention, in the outlet formation apparatus according to any one of the first to sixth aspects, the outer periphery of the closed portion abuts on the periphery of the opening of the hollow cylindrical portion of the frame. In the state in which the closing body is attached to the frame, the hook, the closing portion, and one end of the frame constitute substantially the same plane.

  The outlet formation device according to claim 8 is the outlet formation device according to claim 1 or 2, wherein the attachment portion is attached to an outwardly extending flange portion of the covering portion. It is characterized in that it is formed in the shape of a flange on the outer periphery.

  The outlet formation device according to claim 9 is characterized in that, in the outlet formation device according to claim 8, the attachment portion is held between the flange portion and the peripheral edge of the through hole.

  According to the outlet formation device according to the first aspect, the closing body is detachably attached to the frame, and the closing body is provided with a flexible closing deformable membrane-like closing portion. Thus, it is possible to respond flexibly to various installation situations of wiring and piping materials. That is, when the wiring / pipe material is not disposed in the through hole, the closing body is attached to the frame so that the closing portion can close the opening of the insertion path. This prevents dust, insects and the like from entering through the insertion path of the outlet formation device. Further, in the case of arranging the wiring and piping material having a relatively small diameter with respect to the opening of the insertion path in the through hole, the broken blocking body is attached to the frame. As a result, the broken blocking portion is interposed between the outer surface of the wiring / pipe material and the inner surface of the insertion path, and an outlet that is narrower than the opening of the insertion path is configured. Then, since the wire / pipe material is drawn out from the through hole in a state where the broken portion completely or partially fills the gap between the wire / pipe material and the inner surface of the insertion path, the inside of the insertion path is exposed to the outside Is suppressed. Thereby, even in the state in which the wiring / pipe material is pulled out from the through hole, it is possible to minimize the ingress of dust, insects and the like into the insertion path. Furthermore, in the case where a relatively large diameter or a large number of wiring and piping materials are provided to the outlet formed in the closed portion, the closed body is removed from the frame. Alternatively, the closing portion may be expanded until the insertion path peripheral edge is exposed. In such a state, the wire / pipe material is prevented from coming into direct contact with the through hole edge by the covering portion covering the through hole edge so as to separate the wire / pipe material from the through hole edge. An extended outlet is formed in which the entire end opening of the insertion path is open to the outside. Therefore, the outlet forming apparatus of the present invention can cope with various types of wiring and piping materials, and can completely seal the through holes when the wiring and piping materials are not provided. .

  According to the outlet formation device of the second aspect, in addition to the effect of the invention of the first aspect, by holding the wall material between the covering portion and the holding body, the cylindrical body is made to the through hole It can be fixed. And, by adopting the holding means as the fixing means, it is possible to cope with different wall thicknesses.

  According to the outlet formation device of the third aspect, in addition to the effect of the invention of the first aspect or the second aspect, the frame is a closed body by inserting the cylindrical attachment portion into the hollow cylindrical portion. In contrast, it is easily removable.

  According to the outlet formation device of the fourth aspect, in addition to the effect of the invention of the third aspect, the frame is pressed against the closed body by pressing the cylindrical attachment portion into the hollow cylindrical portion. It is removable more easily.

  According to the outlet formation device of the fifth aspect, in addition to the effect of the invention of the third aspect or the fourth aspect, when the closure is attached to the frame, the other end of the closure extends from the end of the frame At the same time, the engagement convex portion is engaged with the end face of the frame, so that the closure can be prevented from coming out of the frame.

  According to the sixth aspect of the present invention, in addition to the third or fourth aspect, when the closing body is attached to the frame, the other end of the closing body is accommodated inside the hollow cylindrical portion, There is no exposure to the outside. This allows the compact overall shape to be maintained.

  According to the outlet formation device of the seventh aspect, in addition to the effect of the invention according to any of the first to sixth aspects, the buttock, the closing portion and the frame in a state where the closing body is attached to the frame By forming one end portion of the substantially the same plane, it contributes to the improvement of the aesthetics without forming a plurality of steps in the periphery of the through hole.

  According to the outlet formation device of the eighth aspect, in addition to the invention of the first or second aspect, the closing body is detachably attached to the frame by attaching the attaching portion to the flange portion. be able to.

  According to the outlet formation device of the ninth aspect, in addition to the effect of the invention of the eighth aspect, the flange-like attachment portion is pinched between the flange portion and the through-hole peripheral edge, so that the closing body Can be effectively prevented from getting out of the frame.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic disassembled perspective view of the outlet formation apparatus of one Embodiment (1st Embodiment) which concerns on this invention. 1. The perspective view seen from (a) front of the frame of the outlet formation apparatus of FIG. 1, and the perspective view seen from the back (b). (A) Front view of the frame of FIG. 2, (b) Rear view, (c) Side view, and (d) AA sectional drawing. The perspective view seen from the (a) front view of the closure object of the outlet formation device of Drawing 1, and the perspective view seen from the (b) back. (A) Front view of the obstruction | occlusion body of FIG. 4, (b) Rear view, (c) Side view, and (d) BB sectional drawing. BRIEF DESCRIPTION OF THE DRAWINGS The schematic partial disassembled perspective view of the installation structure (wiring box) of the outlet formation apparatus of one Embodiment of this invention. The partially expanded sectional view of the installation structure of FIG. 6 which shows the outlet formation apparatus of a 1st form. The partially expanded sectional view of the installation structure of FIG. 6 which shows the outlet formation apparatus of a 2nd form. The elements expanded sectional view of the installation structure of FIG. 6 which shows the outlet formation apparatus of a 3rd form. The schematic disassembled perspective view of the outlet formation apparatus of another embodiment (2nd Embodiment) concerning this invention. The perspective view seen from (a) front of the frame of the outlet formation apparatus of Drawing 10, and the perspective view seen from the back (b). (A) Front view of the outlet formation apparatus of FIG. 11, (b) Back view, (c) Side view, and (d) CC sectional drawing. FIG. 11 is a partial enlarged cross-sectional view of the installation structure of the outlet formation device (first embodiment) of FIG. 10; The schematic disassembled perspective view of the outlet formation apparatus of another embodiment (3rd Embodiment) which concerns on this invention. The perspective view seen from the (a) front view of the closure object of the outlet formation device of Drawing 14, and the perspective view seen from the back (b). The (a) top view of the obstruction | occlusion body of FIG. 15, (b) Front view, (c) DD sectional drawing, (d) EE sectional drawing. The elements on larger scale sectional drawing of the installation structure of the outlet formation apparatus (1st form) of FIG. The schematic disassembled perspective view of the installation structure of the outlet formation apparatus of another embodiment (modification) which concerns on this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic view in explaining a suitable shape dimension, and a dimensional ratio etc. do not necessarily correspond with an actual dimensional ratio. That is, the present invention is not limited to the dimensional ratio in the drawings.

First Embodiment
The outlet forming apparatus 100 of the present embodiment closes the through holes 13 opened in the wall material 12 of the wiring box 11 and, according to the conditions of wiring and piping, wiring and piping materials (cables P and P) as bushings. Used to form an outlet for '). However, the outlet formation device 100 described below is merely an example, and is not limited to the application.

  FIG. 1 is an exploded perspective view of the outlet forming apparatus 100 according to an embodiment of the present invention. As shown in FIG. 1, the outlet forming device 100 according to the present embodiment includes a rigid frame 110 fixed to the through hole 13 and a pinching member that functions as a fixing portion that fixes the frame 110 to the wall material 12. And a flexible (or elastic) closure body 120 detachably attached to the frame body 110.

  Each member of the outlet forming apparatus 100 according to the present embodiment will be described with reference to FIGS. 2 to 5. 2 (a) and 2 (b) are a perspective view from the front and a perspective view from the rear of the frame 110 of the outlet forming device 100. FIG. FIGS. 3A to 3D are a front view, a rear view, a side view, and an AA cross-sectional view of the frame 110. FIGS. 4A and 4B are a perspective view from the front and a perspective view from the rear of the closure body 120 of the outlet formation device 100, respectively. 5 (a) to 5 (d) are a front view, a rear view, a side view and a B-B cross-sectional view of the closure body 120, respectively.

  As shown in FIGS. 2 and 3, the frame 110 is formed in the hollow cylindrical portion 111 disposed in the through hole 13 and open at both ends, formed at one end of the hollow cylindrical portion 111, and the end edge of the through hole 13 A covering portion 112 is provided, and a flange portion 113 is formed so as to extend outward of the covering portion 112 at one end of the hollow cylindrical portion 111 so as to extend to the periphery of the through hole 13. The frame 110 has rigidity. In the present embodiment, the “edge” of the through hole 13 indicates the edge portion (that is, the hole edge) of the hole, and in general, a corner is formed. On the other hand, the “periphery” of the through hole 13 is a surface portion of the wall material 12 on the outer peripheral side of the edge. Furthermore, “covering the edge of the through hole” according to the present invention means the inside of the through hole and / or the outside of the through hole so as to separate the wiring and piping material (or the inside of the insertion path) It means covering the edge.

  The hollow cylindrical portion 111 is a cylindrical body which internally defines an insertion path for the wiring and piping material (cable P, P ′). The hollow cylindrical portion 111 has a length capable of penetrating the wall material 13 and has an inner diameter capable of inserting the large diameter and / or the large number of cables P '. Further, one end side opening 114 and the other end side opening 115 are formed at both ends of the hollow cylindrical portion 111. The inner peripheral edge portion of the one end side opening 114 is chamfered into a rounded shape (or an arc shape in cross section). In other words, the covering portion 112 has a convexly curved surface that is curved in a gentle arc shape so as to retract to the other end side at the inner peripheral edge portion of the one end side opening 114. The one end side opening 114 functions as an extended outlet of the wiring / pipe material in a state where the closing body 120 is not attached. Further, the inner surface of the hollow cylindrical portion 111 is formed (made of a smooth surface (or a flat surface) in the present embodiment) so as not to be damaged even when the wiring / pipe material is in sliding contact. Furthermore, an external thread portion 116 is formed over the outer periphery of the hollow cylindrical portion 111.

  Then, at one end of the hollow cylindrical portion 111, an annular covering portion 112 is formed along the inner peripheral edge portion of the one end side opening 114, and the flange portion 113 protrudes like a hook on the outside of the covering portion 112 It is done. The covering portion 112 and the flange portion 113 can cover the outer periphery of the through hole 13 by extending to the end edge (hole edge) and the periphery of the through hole 13 in a state where the hollow cylindrical portion 111 is disposed through the through hole 13 It is formed with a size. That is, the diameter of the annular covering portion 112 corresponds to the diameter of the end edge of the through hole 13. The covering portion 112 and the flange portion 113 extend from the inner peripheral edge of the one end side opening 114 to the periphery of the through hole 13 to protect the wiring and piping material in the insertion path from the edge of the through hole 13 At the same time, it functions to make up the periphery of the through hole 13. In the present embodiment, the flange portion 113 is formed as an octagonal housing in a front view. Further, on the back surface (on the side of the wall material 12) of the flange portion 113, a holding surface 113a for holding the wall material 12 in cooperation with the holding member 117 is defined. In the present embodiment, the hollow cylindrical portion 111, the covering portion 112, the flange portion 113, and the external thread portion 116 of the frame 110 are integrally formed. In the present embodiment (or the present invention), the covering portion 112 covers the edge from the inside of the through hole 13 and intervenes between the wiring / pipe material and the edge of the through hole 13. Are set at positions where sliding contact with each other is prevented. However, the boundary between the covering portion 112 and the flange portion 113 is not clearly distinguished. Therefore, the flange portion 113 may be integrally interpreted as a part of the covering portion 112.

  The sandwiching body 117 cooperates with the flange portion 113 extending outward of the covering portion 112 to sandwich the periphery of the through hole 13 formed through the plate-like wall member 12. The holding body 117 is formed in a nut shape in a front view octagon having an opening at the center. In addition, an inner threaded portion 117a (corresponding to the outer threaded portion 116 of the frame 110) is processed on the inner peripheral surface of the central opening of the holding body 117. That is, the holding body 117 is configured to be capable of being screwed to the external thread portion 116 of the hollow cylindrical portion 111. Further, on the surface (on the side of the wall material 12) of the sandwiching member 117, a sandwiching surface 117b for holding the wall material 12 in cooperation with the flange portion 113 is defined. That is, in a state in which the hollow cylindrical portion 111 of the frame 110 penetrates the through hole 13, the holding body 117 is screwed to the other end of the hollow cylindrical portion 111, and the holding surfaces 113a and 117b are close to each other As the screw 117 advances, the wall material 12 is held by the holding surfaces 113a and 117b. That is, the external screw portion 116 of the frame 110 cooperates with the holding body 117 to function as a fixing portion or fixing means for fixing the frame 110 to the through hole 13. And, by adopting the holding means by screwing as the fixing means, it is possible to cope with different wall thicknesses.

  In addition, the frame 110 and the holding body 117 of this embodiment are shape | molded by hard synthetic resin. However, the present invention is not limited to this, and other materials such as metal may be adopted.

  As shown in FIG. 4 and FIG. 5, the closing body 120 includes an attaching portion 121 detachably attached to the frame 110, and a circular membrane-like closing portion 123 which can be bent and deformed and can be broken. The closure 120 is elastically deformable so as to maintain the original shape as a whole.

  The attachment portion 121 is formed as a cylindrical body extending from one end to the other end. In other words, the attachment portion 121 is formed in a cylindrical shape that is inserted into the hollow cylindrical portion 111 of the frame 110. Then, one end of the attachment portion 121 is closed by the membrane-like closing portion 123, and the other end is opened. The outer diameter of the attachment portion 121 substantially matches the inner diameter of the hollow cylindrical portion 111. That is, the attachment portion 121 is attached by being pressed into the hollow cylindrical portion 111 of the frame 110. In the present embodiment, the attachment portion 121 is formed shorter than the distance from one end of the frame 110 to the other end. That is, when the closing body 120 is attached to the frame 110, the other end of the closing body 120 is accommodated in the hollow cylindrical portion 111 and is not exposed to the outside, so the compact overall shape is maintained.

  The closing portion 123 is stretched at one end of the cylindrical attachment portion 121 as a thin film or a flat plate having a predetermined thickness, and closes the one end of the attachment portion 121. The surface on one end side of the closed portion 123 is formed flat. On the other hand, on the surface on the other end side of the closing portion 123, a plurality of (three in the present embodiment) cutting auxiliary grooves 124 recessed along the diameter of the closing portion 123 are formed. The cutting assistance grooves 124 are thinner than the other portions of the closed portion 123, and are easily broken or cut. That is, the cutting auxiliary groove 124 functions as an auxiliary line for breaking the closed portion 123. Further, in the present embodiment, the three cutting assist grooves 124 equally divide the blocking portion 123 into six sectors. By forming the cutting auxiliary groove 124 in this manner, for example, when the operator strongly presses the blocking portion 123 by hand, the blocking portion 123 can be easily broken along the thin portion. Alternatively, the closed portion 123 can be easily broken by cutting the closed portion 123 along the cutting assist groove 124 with a cutter, a knife or the like. As will be described later, when the blocking portion 123 is broken along the cutting assisting groove 124, the blocking portion 123 is divided into a plurality of tongue pieces (sections) 123a, and the outlet 123b is formed at the center thereof (see FIG. 8) .

  In addition, a thin plate-like collar portion 126 radially protrudes from the outer periphery of the closed portion 123 so as to abut on the periphery of the one end side opening 114 of the hollow cylindrical portion 111 of the frame 110 at one end of the attachment portion 121. The flange portion 126 has a projecting width that is accommodated in the inner peripheral edge recessed in the rounded shape of the one end side opening 113. Further, as shown in FIG. 5D, the rear surface of the collar portion 126 is curved in accordance with the rounded shape of the inner peripheral edge portion. In other words, the rear surface of the collar portion 126 and the curved surface (front surface) of the covering portion 112 substantially match each other. When the closing body 120 is attached to the frame 110, the hook portion 126 is accommodated in the inner peripheral edge portion and is configured not to extend to the front surface of the covering portion 112.

  On the other hand, at the other end of the attachment portion 121, an engagement convex portion 127 protruding radially (radially) from the outer periphery of the attachment portion 121 is formed. In other words, the engagement convex portion 127 is formed in an annular shape. The engagement convex portion 127 is formed to engage with the periphery of the other end side opening 215 of the hollow cylindrical portion 211 of the frame 210 (see FIGS. 10 to 13) of another form described later.

  In addition, the closure body 120 of this embodiment is integrally formed by the rubber material which can be bent and elastically deformed. However, the present invention is not limited to this, and other materials may be adopted.

  FIG. 6 is a partially exploded view of the installation structure 10 in which the outlet forming apparatus 100 is installed with respect to the wiring box 11. As shown in FIG. 6, the wiring box 11 is a housing having an opening at the front and a bottom wall at the back, and has a wall material 12 erected from the bottom wall and a through hole 13 drilled in the wall material 12 . The wiring box 11 has a knockout structure, and is closed by a closing plate (knock) 13 a at a portion where the through hole 13 is not formed. Then, when the closing plate 13a is hit with a hammer or the like, the closing plate 13a is removed, and the through holes 13 are formed in the wall material 12. In the embodiment shown in FIG. 6, two through holes 13 are formed. And the outlet formation apparatus 100 is installed with respect to each through-hole 13, and the outlet of wiring and piping material is formed. In the installation structure 10 of FIG. 6, the outlet formation device 100 on the right side is installed in the through hole 13, and one cable P is drawn out from the outlet 123b.

  Next, a method of installing the outlet forming apparatus 100 with respect to the through hole 13 will be described. As shown in FIG. 6, the hollow cylindrical portion 111 of the frame 110 is penetrated from the outer surface side of the wall member 12 to the through hole 13, and the tip (other end) of the hollow cylindrical portion 111 is protruded into the wiring box 11. Then, the sandwiching member 117 is screwed to the tip of the hollow cylindrical portion 111 from the inner surface side of the wall material 12 to clamp the wall material 12 between the covering portion 112 and the screwing member 117. Thus, the frame 110 is fixed to the wall material 12 through the through holes 13. In the present embodiment, the frame 110 is fixed to the wall material 12 in a state in which the closing body 120 is attached to the frame 110, but the frame 110 is a wall material in a state in which the closing body 120 is separated from the frame 110 It may be fixed to 12.

  FIG. 7 is a partial cross-sectional view of the installation structure 10 in which the outlet formation device 100 (first embodiment) of the present embodiment is installed. In the installation structure 10, the wall material 12 is narrowed by the sandwiching surface 113 a of the flange part 113 and the sandwiching surface 117 b of the screwing member 117 in a state where the hollow cylindrical part 111 penetrates the through hole 13. Further, the covering portion 112 and the flange portion 113 extend from the edge of the through hole 13 to the periphery, and the through hole 13 is not exposed to the outside of the wall material 12. Then, the attachment portion 121 of the closing body 120 is press-fit into the hollow cylindrical portion 111 of the frame 110. At this time, the attachment portion 121 is formed shorter than the distance between both ends of the frame 110, so that the other end portion of the closing body 120 is accommodated inside the hollow cylindrical portion 111 and is not exposed to the outside. Further, the collar portion 126 of the closure body 120 is accommodated in the concave inner peripheral edge portion of the one end side opening 114 and does not extend to the front surface of one end surface of the outlet formation device 100. As a result, the collar portion 126, the closing portion 123, and the flange portion 113 (one end of the frame 110) constitute substantially the same plane. In addition, the "substantially the same plane" said here is the concept which the unevenness | corrugation of about the thickness of the ridge part 126 is accept | permitted. Thereby, unnecessary unevenness is eliminated and the appearance of the installation structure 10 is improved. Then, when the wiring / pipe material is not drawn out from the through hole 13, the first form of the outlet formation device 100 as shown in FIG. 7 is selected. In the first embodiment, since the closing portion 123 of the closing body 120 attached to the frame 110 completely closes the insertion path opening of the cable P, the inside of the wiring box 11 through the outlet forming device 100 Invasion of insects and dust is prevented.

  FIG. 8 is a partial cross-sectional view of the installation structure 10 in which the outlet formation device 100 (second embodiment) of the present embodiment is installed. When the cable P having a diameter or a cross-sectional area sufficiently smaller than the inner diameter of the hollow cylindrical portion 111 is disposed, the second form of the outlet formation device 100 as shown in FIG. 8 is selected. In the outlet formation device 100 of the second embodiment, the cable P passes through the insertion path in the hollow cylindrical portion 111 through the gap of the closed portion 123 where the closed portion 123 of the closed body 120 is broken and the broken portion of the wiring box 11 It extends in and out. More specifically, the closing portion 123 is divided into six tongues 123a, and an outlet 123b is formed at the center thereof. Then, a relatively small diameter cable P is drawn out from the outlet 123b. At this time, the plurality of tongues 123a are bent and deformed outward (or inward) of the wall member 12, and are in close contact with the outer surface of the cable P so as to be narrowed by an elastic return force to its original shape. That is, the tongue piece 123a of the occluded portion 123 which is broken is interposed between the outer surface of the cable P and the inner surface of the insertion path, and the outlet 123b narrower than the opening 114 at one end side of the insertion path (expanded outlet) is formed. In this embodiment, since the tip of the tongue piece 123a is narrowed, the size of the outlet 123b is approximately equal to the diameter of the cable P. That is, since the gap between the closed section 123 and the outer surface of the cable P is filled, entry of insects and dust into the inside of the wiring box 11 via the outlet formation device 100 is minimized. In the second embodiment of the outlet formation apparatus 100, a fireproof closing putty made of, for example, a clay-like thermally expandable material may be deposited on the outer surface of the tongue piece 123a. In this case, since each tongue piece 123a is gently bent outward and is continuous with the outer surface of the cable P, there is a structural advantage that the clay-like closed putty does not easily fall off. Furthermore, the small gap (or thin) between the cable P and the end edge of the through hole 13 reduces the amount of putty used by the presence of the tongue piece 123a as in the second embodiment, and also for the worker. An effect may also be obtained that the work of depositing, embedding or putting on the putty is facilitated. The tongue piece 123a may be bent and deformed inward, and a putty may be deposited there.

  FIG. 9 is a partial cross-sectional view of the installation structure 10 in which the outlet formation device 100 (third embodiment) of the present embodiment is installed. As shown in FIG. 9, when arranging a large diameter and a large number of cables P ', the third form of the outlet formation device 100 is selected. When such a large diameter and large number of cables P 'are pulled out from the outlet 123b in the second embodiment, the cables P' come into sliding contact with the root of the tongue 123a of the closed portion 123 and the inner surface of the attachment portion 121 and the closed body 120 Since it is out of the frame 110, it is not preferable to select the second form. Then, in the outlet formation apparatus 100 of the third embodiment, the closing body 120 is removed from the frame 110, and only the frame 110 and the holding body 117 are fixed to the wall material 12. As a result, an expanded outlet 114 is formed in which the entire end opening of the insertion path is opened to the outside. Then, a plurality of cables P ′ pass through the insertion path of the hollow cylindrical portion 111 and are pulled out of the wiring box 11 through the expansion outlet 114. At this time, since the inner peripheral edge of the expansion outlet (one end side opening) 114 is curved in a rounded shape, the cable P 'may be bent or bent in the insertion path and damaged even when it abuts on the inner peripheral edge It is prevented. That is, the outlet forming apparatus 100 according to the third embodiment can arrange a large diameter and / or a large number of wiring and piping materials which can not be handled by the outlet 123b. In the third embodiment of the outlet formation apparatus 100, for example, a fireproof closure putty made of a thermally expandable material having a clay shape is embedded so as to close the gap between the cable P ′ and the expansion outlet 114. May be

  In addition, in the outlet formation device 100 of the present embodiment, the attachment portion 121 of the closing body 120 can be inserted and crimped from the other end side opening 115 of the frame 110. When the closing body 120 is attached from the other end side opening 115 of the frame 110, the other end side opening 115 is closed by the closing portion 123. In such a mounting form, when the second form is selected, the broken blocking portion 123 is bent at a lower depth, so that it does not protrude outside the wall material 12 and the appearance is relatively suppressed from deteriorating. .

  Hereinafter, the operation and effect of the outlet formation device 100 according to the embodiment of the present invention will be described.

  According to the outlet formation device 100 of the present embodiment, the closing body 120 is detachably attached to the frame 110, and the closing body 120 is provided with the membrane-like closing portion 123 which can be bent and deformed and can be broken. As a result, it is possible to adapt flexibly to various installation situations of wiring and piping materials. For example, when the wiring / pipe material is not disposed in the through hole 13, the first form (see FIG. 7) of the outlet formation device 100 is selected, and the closing body 120 is attached to the frame 110 to close the closing portion 123 Can completely close the opening 114 at one end side of the insertion path. As a result, the through hole 13 is closed, and dust, insects and the like are prevented from entering the inside of the wiring box 11 through the insertion path of the outlet formation device 100. Moreover, when arrange | positioning so that the comparatively small diameter cable P may be pulled out from the wiring box 11 through the through-hole 13, the 2nd form (refer FIG. 8) of the outlet formation apparatus 100 is selected, and the closed body 120 is In the state of being attached to the frame 110, the closing portion 123 is broken along the cutting assist groove 124. As a result, the broken tongue 123a of the closed portion 123 is interposed between the outer surface of the cable P and the inner surface of the insertion path, and the outlet 123b narrower than the opening 114 (the expanded outlet) of the insertion path is formed. Then, since the cable P is pulled out from the through hole 13 in a state where the tongue piece 123a fills the gap between the cable P and the inner surface of the insertion path, it is suppressed that the insertion path (wiring box 11 internal space) is exposed to the outside Be done. Thereby, even in the state where the cable P is pulled out from the through hole 13, it is possible to minimize the entry of dust, insects and the like into the wiring box 11 through the insertion path. Furthermore, in the case where a relatively large diameter and / or a large number of cables P 'are disposed such that the section 123a of the closed portion 123 interferes with the closed body 120 attached to the frame 110, the outlet forming device 100 The third form (see FIG. 9) is selected, and the closure 120 is removed from the frame 110. In the state where the blocking body 120 is removed from the frame 110, the covering portion 112 covering the periphery of the through hole 13 prevents the cable P 'from directly contacting the periphery of the through hole 13. That is, an expanded outlet 114 is formed in which the entire end opening of the insertion path is opened to the outside. Therefore, the outlet forming apparatus 100 according to the present embodiment can cope with various types of wiring and piping materials, and can completely seal the through holes 13 when the wiring and piping materials are not provided. It is possible.

  Among the wiring boxes, particularly, in control panel cabinets and collective instrument panel cabinets, it is generally installed in a state where a large number of through holes including spares are formed in preparation for future expansion and rerouting. . Therefore, in the initial installation phase, there are unused through holes (extracts). The application of the outlet forming device (or the outlet forming device 100) of the present invention to such a large number of through holes of the control panel cabinet and the collective instrument panel cabinet produces particularly remarkable effects. That is, initially, it is used to close many spare ports as the first form of closed state. And in addition, according to the thickness and quantity of wiring and piping material (cable) to be drawn out, the second form which constitutes the narrow (if narrow) outlet is selected, and the diameter of the wiring and piping material is large. If the number is too large, the third embodiment is selected in which the closing body is removed from the frame to constitute the expansion outlet. Furthermore, when changing the path to another through-hole (outlet) not in use, it is fixed to the through-hole (before the change) which no longer uses the closure that closed the other through-hole. It can also be attached and closed in the frame.

  The present invention is not limited to the above embodiment, but can take various embodiments and modifications. Hereinafter, second and third embodiments and modifications of the present invention will be described. In addition, in each embodiment and modification, the component in which the lower two digits are common has the same or similar feature, and the description thereof is partially omitted.

Second Embodiment
Next, the outlet forming apparatus 200 according to the second embodiment will be described with reference to FIGS. FIG. 10 is a schematic exploded perspective view of the outlet forming apparatus 200 according to an embodiment of the present invention. FIGS. 11A and 11B are a perspective view from the front and a perspective view from the rear of the frame 210 of the outlet formation device 200. FIG. 12 (a) to 12 (d) are a front view, a rear view, a side view and a cross-sectional view taken along the line C-C of the frame 210, respectively. FIG. 13 is a partial cross-sectional view of the installation structure 20 in which the outlet formation device 200 (first embodiment) is installed.

  As shown in FIG. 10, the outlet forming apparatus 200 of the present embodiment includes a frame 210 fixed to the through hole 13 and a closure 220 detachably attached to the frame 210. . The closure 220 of the second embodiment has the same structure and shape as the closure 120 of the first embodiment, so the description thereof will be omitted. Further, in the outlet formation device 200 of the second embodiment, a pair of elastic pieces 217 engageable with the inner peripheral wall of the through hole 13 is adopted as the fixing portion (or fixing means) instead of the holding body 117. There is.

  As shown in FIGS. 11 and 12, the frame 210 is formed in the hollow cylindrical portion 211 disposed in the through hole 13 and open at both ends, formed at one end of the hollow cylindrical portion 211, and the end edge of the through hole 13 A covering portion 212 is provided, and a flange portion 213 is formed so as to extend outward of the covering portion 212 at one end of the hollow cylindrical portion 211 so as to extend to the peripheral edge of the through hole 13. The frame 210 has rigidity.

  The hollow cylindrical portion 211 is a cylindrical body that internally defines an insertion path for the wiring and piping material (cable P, P ′). The hollow cylindrical portion 211 has a length capable of penetrating the wall material 13, and has an inner diameter capable of inserting the large diameter and / or the large number of cables P '. Further, one end side opening 214 and the other end side opening 215 are formed at both ends of the hollow cylindrical portion 211. The inner peripheral edge of the one end side opening 214 is chamfered in a rounded shape. The one end side opening 214 functions as an extended outlet of the wiring / pipe material in a state where the closing body 220 is not attached.

  Then, at one end of the hollow cylindrical portion 211, an annular covering portion 212 is formed along the inner peripheral edge portion of the one end side opening 214, and the flange portion 213 protrudes like a hook on the outside of the covering portion 212. It is formed. The covering portion 212 and the flange portion 213 can cover the outer periphery of the through hole 13 by extending to the end edge (hole edge) and the periphery of the through hole 13 in a state where the hollow cylindrical portion 211 is disposed through the through hole 13 It is formed with a size. That is, the diameter of the annular covering portion 212 corresponds to the diameter of the edge of the through hole 13. The covering portion 212 and the flange portion 213 extend from the inner peripheral edge of the one end side opening 214 to the peripheral edge of the through hole 13 to protect the wiring and piping material in the insertion path from the edge of the through hole 13 At the same time, it functions to make up the periphery of the through hole 13. In the present embodiment, the covering portion 212 is formed as a circular case in a front view. Then, on the back surface (on the side of the wall material 12) of the flange portion 213, an abutting surface 213a that abuts on the outer surface of the wall material 12 is defined.

  A pair of elastic pieces 217 project from the outer surface of the hollow cylindrical portion 211. The elastic pieces 227 are disposed on both sides of the diameter of the hollow cylindrical portion 211 so as to face the opposite sides. The entire width including the projecting width of the pair of elastic pieces 217 is larger than the diameter of the through hole 13, and the outer diameter of the hollow cylindrical portion 211 in the portion not including the elastic piece 217 is smaller than the diameter of the through hole 13. Each elastic piece 227 is formed with a first inclined portion 217 a inclined at an angle of about 40 degrees from the other end edge of the hollow cylindrical portion 211 to one end side. In addition, the elastic piece 217 is reversed at a substantially intermediate position in the length direction of the hollow cylindrical portion 211, and is bent inward into the shape of "く". A second inclined portion 217b inclined at an angle of about 30 degrees is formed on the outer surface side of the hollow cylindrical portion 211 from the intermediate position to the tip end side. The tip of the second inclined portion 217b can be elastically displaced in the inward and outward directions as a free end. A plurality of sawtooth-like steps are provided on the outer surface of the second inclined portion 217b. The hollow cylindrical portion 211, the covering portion 212, and the elastic piece 217 of the frame 210 are integrally formed.

  As shown in FIG. 13, in the installation structure 20 of the present embodiment, the frame 210 is press-fit into the through hole 13, and the step of the outer surface of the second inclined portion 217 b is penetrated by the elastic return force of the elastic piece 217 deformed inward. The peripheral end face of the hole 13 is engaged, and the frame 210 is fixed to the wall material 12. Further, the covering portion 212 and the flange portion 213 extend from the end edge of the through hole 13 to the periphery, and the through hole 13 is not exposed to the outside of the wall material 12. Then, the attachment portion 221 of the closing body 220 is press-fit into the hollow cylindrical portion 211 of the frame 210. At this time, the attachment portion 221 is formed to be longer than the distance between both ends of the frame 210. Then, the other end of the blocking body 220 extends from the end of the frame 210 and the engagement convex portion 227 engages with the end face of the frame 210, whereby the blocking body 220 is restricted from coming out of the frame 210. . Further, the flange portion 226 of the closing body 220 is accommodated in the concave inner peripheral edge a of the opening 214 on the one end side, and does not extend to the front surface of one end surface of the outlet forming device 200. As a result, the collar portion 226, the closing portion 223, and the flange portion 213 (one end of the frame 210) constitute substantially the same plane. In the first embodiment of the outlet forming apparatus 200 of FIG. 13, the closing portion 223 of the closing body 220 attached to the frame 210 completely closes the opening of the wiring / pipe material.

  Although not shown, the outlet formation device 200 of the present embodiment can take the second form by breaking the blocking portion 223 as in the first embodiment, and the blocking body 220 can be taken from the frame 210. The third form can be taken by removing it. That is, the outlet forming apparatus 200 of the second embodiment can achieve the technical object of the present invention as in the first embodiment.

Third Embodiment
Next, the outlet forming apparatus 300 of the third embodiment will be described with reference to FIGS. 14 to 17. FIG. 14 is a schematic exploded perspective view of the outlet formation device 300 according to an embodiment of the present invention. FIGS. 15A and 15B are a perspective view from the front and a perspective view from the rear of the closure body 320 of the outlet formation device 200, respectively. 16 (a) to 16 (d) are a front view, a rear view, a DD sectional view, and an EE sectional view of the frame 310, respectively. FIG. 17 is a partial cross-sectional view of the installation structure 30 in which the outlet formation device 300 (first embodiment) is installed.

  As shown in FIG. 14, the outlet formation device 300 of the present embodiment includes a frame 310 fixed to the through hole 13, and a closing body 320 detachably attached to the frame 310. . The frame 310 of the third embodiment has the same structure and shape as the frame 110 of the first embodiment, and thus the description thereof is omitted.

  As shown in FIG. 15 and FIG. 16, the closing body 320 includes an attaching portion 321 detachably attached to the frame 310, and a circular membrane-like closing portion 323 which can be bent and broken and can be broken. The closure 320 is elastically deformable so as to maintain the original shape as a whole. The closing body 320 is formed in a plate shape having an octagonal front view so as to correspond to the outer shape of the flange portion 313.

  The attachment portion 321 is a region extending outward from the outer periphery of the circular closing portion 323. Then, at the boundary between the attachment portion 321 and the closing portion 323, an annular convex portion 321a that abuts on the inner peripheral edge portion of the one end side opening 314 of the frame 310 protrudes on the rear surface side. As shown in FIGS. 16C and 16D, the outer circumferential side of the annular convex portion 321a is curved along the radius of the inner peripheral edge portion. The attachment portion 321 extends outward of the closed portion 323 so as to cover the front surface of the octagonal flange portion 313 of the frame 310. The attachment portion 321 is bent toward the rear surface (rear surface) side at the outer peripheral edge thereof, and is formed so as to cover the outer peripheral end surface of the flange portion 313. Furthermore, the attachment portion 321 is partially bent inward on the rear surface side, and a portion thereof is formed so as to be able to abut on the rear surface of the flange portion 313. More specifically, the attachment portion 321 has a circular opening on the rear surface side as shown in FIG. 16B, and a plate-like piece extends inward in the vicinity of each corner of the octagon. And the accommodating part 321b for partially accommodating the flange part 313 is provided between the front surface of the attaching part 321, and a rear surface. That is, the covering body 320 is mounted on the frame 310 such that the attachment portion 321 covers the flange portion 313 of the frame 310 from the front and covers the vicinity of the corner of the flange portion 313 from the back.

  The closed portion 323 is stretched inward of the attachment portion 321 as a thin film or flat plate of a predetermined thickness. The surface on one end side of the closed portion 323 is formed flat. On the other hand, in the surface on the other end side of the closing portion 323, a plurality of (three in the present embodiment) cutting auxiliary grooves 324 recessed along the diameter of the closing portion 323 are formed. The cutting assistance grooves 324 are thinner than the other portions of the closed portion 323 and are easily broken or cut. That is, the cutting auxiliary groove 324 functions as an auxiliary line for breaking the closed portion 33. Further, in the present embodiment, the three cutting assist grooves 324 equally divide the blocking portion 323 into six sectors. When the closed portion 323 is broken along the cutting assist groove 324, the closed portion 323 is divided into a plurality of tongues (sections) 323a, and the outlet 323b is formed at the center thereof. In addition, the closure body 320 of this embodiment is integrally formed by the rubber material which can be bent and elastically deformed.

  As shown in FIG. 17, in the installation structure 30 of the present embodiment, the wall member 12 is formed by the sandwiching surface 313 a of the flange 313 and the sandwiching surface 317 b of the screw body 317 with the hollow cylindrical part 311 penetrating the through hole 13. I am nervous. In addition, the covering portion 312 and the flange portion 313 extend from the edge of the through hole 13 to the peripheral edge, and the through hole 13 is not exposed to the outside of the wall material 12. Then, the closing body 320 is attached to the frame 310 so that the corner of the flange portion 313 is accommodated in the accommodation portion 321 b of the attaching portion 321. At this time, as shown in FIG. 17, a part of the attachment portion 321 extending on the rear surface side of the flange portion 313 is sandwiched between the peripheral edge of the through hole 13 (wall member 12) and the sandwiching surface 313a of the flange portion 313 There is. In the first embodiment of the outlet formation device 300 of FIG. 17, the closing portion 323 of the closing body 320 attached to the frame 310 completely closes the opening of the wiring / pipe material.

  Although not illustrated, the outlet formation device 300 of the present embodiment can take the second form by breaking the blocking portion 323 as in the first embodiment, and the blocking body 320 is removed from the frame 310 The third form can be taken by removing it. When the blocking body 320 is removed from the frame 310, the entire blocking body 320 is elastically deformed by pulling a portion which is not held between the peripheral edge of the through hole 13 of the attachment portion 321 and the flange portion 313. The holding portion of the attachment portion 321 can be pulled out from between the peripheral edge of the through hole 13 and the flange portion 313. Alternatively, instead of removing the blocking body 320 from the frame 310, the blocking portion 323 may be split to the outside of the insertion path so that the peripheral edge of the insertion path is exposed. That is, the outlet formation device 300 according to the third embodiment can achieve the technical object of the present invention as in the first embodiment.

[Modification]
The outlet formation device of the present invention is not limited to the above embodiment, and can be modified, for example, as follows.

(1) In the said embodiment, although the through-hole is provided in the wall material of a wiring box, this invention is not limited to this. The through hole may be drilled in a wall material or a panel of a building. Furthermore, the through hole may be defined by a connector, a pipe joint or the like. For example, in the outlet formation device 400 of FIG. 18, the hollow cylindrical portion 411 of the frame 410 (similar to the frame 110 of the first embodiment) is screwed into the through hole 23 defined inward of the connector 21. It is As shown in FIG. 18, the connector 21 is for connecting a flexible tube (not shown) to the through hole 13 of the box 11. In the configuration of FIG. 18, the outlet formation device 400 of this embodiment is fixed to the end of the connector 21 on the box 11 side, and the flexible tube is connected to the end of the connector 21 on the opposite side. Then, by sandwiching the wall material 12 of the box 11 with the frame body 410 and the connector 21, the outlet formation device 400 is installed. That is, in the present modification, the “through hole” is defined by both of the communicating through holes 13 and 23. In the present modification, the box 11 may be omitted, and only the through hole 23 of the connector 21 may be defined as the “through hole” of the present invention.

(2) In the above embodiment, the closing portion is provided with the cutting assistance groove for assisting the breakage, but the form of the cutting assistance groove is not limited to the above embodiment. For example, a ring-shaped cutting auxiliary groove may be formed, and the wiring / pipe material may be passed through the round hole of the closed portion cut out along the cutting auxiliary groove. In such a case, it is preferable that the diameter of the cutting assist groove be substantially equal to the diameter of the inserted wiring / pipe material. Alternatively, the cutting assisting groove may not be formed in the closing portion. In this case, the film-like closed portion may be a thin film and optionally broken according to the form of the wiring and piping material.

(3) In the said embodiment, although the hollow cylinder part cross section is circular, this invention is not limited to this. For example, the hollow cylindrical section may be elliptical, oval or polygonal.

(4) In the said embodiment, although wiring and piping material are cables, this invention is not limited to this. For example, the wiring and piping material may be another long material such as a conduit, a protective tube, a flexible tube and the like.

(5) In the above embodiment, the flange portion is formed on the outer side of the covering portion of the frame, but the flange portion is omitted if the wiring and piping material can be protected from at least the corner of the edge of the through hole. You may

  The present invention is not limited to the above-described embodiment and modifications, and may be embodied in various forms within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Wiring and piping structure 11 Wiring box 12 Wall material 13 Through-hole 13a Closure board 100 Outlet formation apparatus 110 Frame 111 Hollow cylinder part 112 Covering part 113 Flange part 113a Sandwiching surface 114 One end side opening (extended drawing out)
115 Other end side opening 116 External thread (part of fixed part)
117 Clamping body (part of fixed part)
117a Inner screw portion 117b Clamping surface 120 Blocking body 121 Attaching portion 123 Blocking portion 123a Tongue piece 123b Pull-out port 124 Cutting auxiliary groove 126 Flange portion 127 Engaging convex portion 200 Pull-out port forming device (second embodiment)
217 Elastic piece (fixed part)
300 outlet forming device (third embodiment)
P Relatively small diameter and / or small number of cables (wiring and piping materials)
P 'Relatively large diameter and / or large number of cables (wiring and piping materials)

Claims (9)

An outlet forming apparatus for forming an outlet for wiring and piping material in a through hole, comprising:
A hollow cylindrical portion which is disposed in the through hole and which defines an insertion path of the wiring and piping member which is open at both ends, and a covering portion which covers an end edge of the through hole; A frame to be fixed,
An attachment portion detachably attached to the frame body, and an occlusion body having a flexible deformable and breakable membrane-like occlusion portion,
When the wiring / pipe material is not disposed in the through hole, the closing body is attached to the frame so that the closing portion can close the opening of the insertion path.
When the wiring and piping material is disposed in the through hole in a state where the closing body is attached to the frame, the closing portion is broken, and the broken closing portion is the outer surface of the wiring and piping material Between the inner side of the insertion path and the inner side, an outlet which is narrower than the opening of the insertion path is constituted ,
When the wiring / pipe material is disposed in the through hole in a state where the closing body is not attached to the frame, the frame functions as an extended outlet for the wiring / pipe material, and the frame The outlet forming device according to claim 1, wherein the inner surface of the outlet is formed as a smooth surface so as not to be damaged even when in sliding contact with the wiring / pipe material .   A clamping body for clamping the periphery of the through hole formed through the plate-like wall member in cooperation with the outwardly extending flange portion of the covering portion is further provided. Outlet formation device.   The said attachment part is formed in the cylinder shape inserted by the said hollow cylindrical part of the said frame, The outlet formation apparatus of Claim 1 or 2 characterized by the above-mentioned.   4. The outlet forming apparatus according to claim 3, wherein the attachment portion is attached by press-fitting into the hollow cylindrical portion of the frame.   The attachment portion is formed in a tubular shape and is longer than the distance between both ends of the frame, the closing portion is formed at one end of the closing body, and the other end of the closing body is The outlet forming apparatus according to claim 3 or 4, wherein an engaging convex portion protruding outward of the attaching portion is formed to engage with an end surface of the hollow cylindrical portion.   5. The outlet forming apparatus according to claim 3, wherein the attachment portion is formed shorter than a distance between both ends of the frame.   A collar extending to abut the periphery of the opening of the hollow cylindrical portion of the frame is provided on the outer periphery of the closed portion, the collar being in a state in which the closed body is attached to the frame, The outlet forming apparatus according to any one of claims 1 to 6, wherein the closing portion and one end of the frame body constitute substantially the same plane.   The pull according to claim 1 or 2, wherein the attachment portion is formed in a flange shape on the outer periphery of the closed portion so as to be attached to an outwardly extending flange portion of the covering portion. Exit forming device.   The outlet forming apparatus according to claim 8, wherein the attachment portion is sandwiched between the covering portion and the periphery of the through hole.

Images