JP4710860B2 - Installation method and structure of waterproof cover - Google Patents

Description

  The present invention provides a waterproof bushing by inserting a waterproof bushing into a through hole of a construction surface, and for example, passing a wire including a wire, a telephone line, a television antenna line, a LAN cable, a pipe for flowing gas or fluid, etc. The present invention relates to a cover mounting method and mounting structure.

  2. Description of the Related Art Conventionally, a structure is known in which wiring extending between an outdoor and an indoor is routed using a waterproof bushing that is inserted into a through hole formed on a construction surface on the outdoor side of a building.

The conventional waterproof bushing is made of resin with waterproof packing stacked on the construction surface side, and the waterproof bushing tube is passed through the square body in advance, and while wiring from the outside is passed through the tube, together with the body and waterproof packing The pipe part is inserted into the through hole of the construction surface by pressing the collar part of the waterproof bushing. After the tube portion is inserted, the body is fixed on the construction surface, and a cover is attached to the fixed body to form a substantially box-shaped rainproof cover (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2005-269820 (FIGS. 2, 14, and 15)

  However, in such a conventional technique, it is necessary to attach the body and the waterproof packing tip to the construction surface together with the waterproof bushing, which limits the work contractor. In other words, in general, the wiring construction contractor inserts the wiring and waterproof bushings into the through holes on the construction surface, and the cover construction contractor installs the body and cover. Work must be done and both contractors will be subject to construction schedule restrictions.

  The present invention has been made paying attention to such a conventional technique, and provides a mounting method and a mounting structure of a waterproof cover that a contractor is not subject to restrictions on a construction schedule.

The invention according to claim 1 includes a waterproof bushing inserted into the through hole of the construction surface, and a rainproof cover that has an insertion port at a position corresponding to the through hole of the construction surface and is attached to the construction surface. passing a mounting structure of the waterproof cover, the waterproof bushing, while located outside the anti-rain cover, Ri structural der attachable to erecting surface, the waterproof bushing provided on the erecting surface was A tube part that is inserted from the outdoor side with respect to the wire hole and through which the wiring can be inserted, a plurality of annular ribs that are formed in a plurality of stages on the outer periphery of the tube part and are in contact with the inner peripheral surface of the wire hole; A flexible waterproof bushing body provided with a flange projecting in the outer diameter direction from the proximal end of the tube section, and a separating means for separating the flange of the waterproof bushing body from the construction surface , It said separating means is a flange portion of the waterproof bushing body The plate-shaped main body part to contact, a pair of ribs projecting from the left-right direction of the main body part toward the construction surface side, and water flowing downward through the construction surface formed between the pair of left and right ribs And a water passage space for passage.

The invention according to claim 2 is characterized in that the separating means is formed of a member harder than the waterproof bushing main body, and is attached to the outer periphery of the base end of the tube portion of the waterproof bushing main body. It is a holder located between the construction surface.

The invention according to claim 3 is characterized in that the separating means is integrally formed with the waterproof bushing main body.

According to a fourth aspect of the present invention, the separating means is a holder that is mounted on the outdoor side of the flange portion of the waterproof bushing, and the holder is formed of a member that is harder than the bushing body, and is located in the vicinity of the proximal end of the pipe portion. A cylindrical shape maintaining member fitted to the periphery is further provided.

According to a fifth aspect of the present invention, in the structure in which the through hole is formed in a groove formed on the side of the construction surface and recessed from the surface of the construction surface, the outer periphery of the tube portion of the waterproof bushing main body is formed. The annular rib is provided in the direction of the tip from at least the depth of the groove portion from the spacing means.

The invention according to claim 6 is a waterproof bushing formed of a flexible member inserted into the through hole of the construction surface, and a rainproof cover having an insertion port at a position corresponding to the through hole of the construction surface. And a waterproof packing attached to the back surface of the rainproof cover, wherein the flange portion of the waterproof bushing and the waterproof packing are in close contact with each other.

The invention according to claim 7 is a waterproof bushing formed of a flexible member inserted into the through hole of the construction surface, and a rainproof cover having an insertion port at a position corresponding to the through hole of the construction surface. A waterproof packing attached to the back surface of the rainproof cover, the waterproof packing having an overlap portion positioned below the upper edge of the flange portion of the waterproof bushing from the periphery of the opening of the waterproof packing. And

According to the first aspect of the present invention, the waterproof bushing can be inserted into the through-hole when passing the wiring through the through-hole of the construction surface during wiring work, without attaching a waterproof cover to the construction surface. The contractor is not limited by the construction schedule.
Moreover, since the separation means for separating the collar portion of the waterproof bushing main body from the construction surface is provided, when the waterproof bushing is attached, the collar portion of the waterproof bushing is separated from the construction surface. Therefore, even if the waterproof bushing is attached before the cover is attached, rainwater flowing along the surface of the construction surface cannot enter the waterproof bushing.
Further, since the separating means forms a water passage space through which water is passed by the pair of ribs, the water is surely discharged downward through the water passage space.

According to invention of Claim 2 , since a holder is located between the collar part and construction surface of a waterproof bushing, the collar part of a waterproof bushing will be in the state spaced apart from the construction surface.

According to the invention described in claim 3 , since the separating means is integrally formed with the waterproof bushing main body, the number of parts can be reduced.

According to invention of Claim 4 , since a holder is provided with the cylindrical shape maintenance member, even if a load is added to the base end side of a waterproof bushing from wiring, the deformation | transformation of the base end side of a waterproof bushing is prevented. Can do.

According to the invention of claim 5 , even if the through hole is formed in the groove portion formed in the construction surface, the annular rib is formed in the distal direction to the depth of the groove portion or more, so the cover is It securely contacts the inner peripheral surface of the through hole.

According to the sixth aspect of the present invention, the waterproof bushing can cover the insertion opening corresponding portion of the waterproof packing, so that it is difficult for water to enter from the insertion opening corresponding portion.

According to the seventh aspect of the present invention, the waterproof packing and the flange portion in the overlap portion have a maze structure, and water hardly enters the rainproof cover.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, in FIG. 1, the left and right directions are defined from the outdoor side to the proximal side, the indoor side to the distal side, and the back side.

  A through hole 2 is formed in the construction surface 1 of the building. The through hole 2 has a circular cross section, and is used for introducing a wiring 3 including an electric wire, a telephone line, a television antenna line, a LAN cable, a pipe for flowing gas and fluid, and the like from the outside to the inside.

  The waterproof bushing 4 is first attached to such a through hole 2. The waterproof bushing 4 is for preventing water from entering the indoor side through the through-hole 2, and includes a waterproof bushing body 5 that is a synthetic resin molded product and a holder 6. The holder 6 is made of a hard resin than the waterproof bushing body 5.

  The waterproof bushing body 5 includes a tube portion 7 that can be inserted from the outdoor side into the through hole 2 and through which the wiring 3 can be inserted, and a rectangular flange portion 8 that protrudes from the proximal end of the tube portion 7 in the outer diameter direction. And is formed from.

  A large-diameter portion 9 having a diameter larger than that of the through-hole 2 is formed at the proximal end of the tube portion 7. The large-diameter portion 9 has a large-diameter cylindrical shape in which the tube portion 7 is bulged.

  The holder 6 is mounted on the back surface of the flange portion 8 on the outer periphery of the large-diameter portion 9, and has a plate-like main body portion 10 that comes into contact with the back surface of the flange portion 8. And a pair of ribs 11 projecting from each other. The main body portion 10 has a concave portion 12 for accommodating the flange portion 8 on the surface side, and a circular hole 13 in which the large diameter portion 9 is inscribed is formed at the center of the concave portion 12. A pair of upper and lower claw portions 14 are respectively formed inward on the left and right sides of the recess 12.

  A plurality of annular ribs 15 are formed in the tube portion 7 in the longitudinal direction. The annular rib 15 is in contact with the inner peripheral surface of the through hole 2 to prevent water from passing through the gap between the pipe portion 7 and the through hole 2. The annular rib 15 has an isosceles triangular cross section as shown in an enlarged view in FIG.

  In order to attach the waterproof bushing 4 having such a structure to the through hole 2, first, the pipe portion 7 of the waterproof bushing 4 is passed from the outside into the circular hole 13 of the holder 6, and the flange portion 8 is inserted into the recess 12 of the holder 6. Store in. Then, the large diameter portion 9 is positioned in the circular hole 13, and the flange portion 8 is accommodated in the recess 12. When the collar part 8 is stored in the recess 12, the left and right ends of the collar part 8 engage with the claw part 14, the collar part 8 is stored in the recess 12, and the waterproof bushing body 5 and the holder 6 are integrated. Is done.

  The tube portion 7 of the waterproof bushing body 5 in which the holder 6 is integrated is inserted into the through hole 2 while passing the wiring 3 therein. The tube portion 7 is inserted until the pair of left and right ribs 11 of the holder 6 contact the construction surface 1.

  At this time, since the annular rib 15 has an isosceles triangular cross section, the tube portion 7 can be easily inserted. In addition, the pipe portion 7 can be smoothly pulled out from the through hole 2 if necessary.

  In the waterproof bushing body 5 in which the pipe portion 7 is inserted into the through hole 2, the large diameter portion 9 abuts on the construction surface 1 around the through hole 2, and the holder 6 is between the flange portion 8 and the construction surface 1. Therefore, the collar portion 8 is separated from the construction surface 1.

  And since the water passage space S is formed between the left and right ribs 11, the water flowing down along the surface of the construction surface 1 has the recesses 12 and the ribs in the water passage space S as shown in FIG. 11 and does not enter the inside of the waterproof bushing body 5.

  The waterproof bushing main body 5 and the holder 6 are attached by a wiring construction contractor.

  Next, the body 17 formed with the insertion port 16 through which the wiring 3 passes is fixed by the cover contractor to the construction surface 1 to which the waterproof bushing main body 5 is attached via the waterproof packing 18.

  The waterproof packing 18 has a U-shaped frame shape with an open bottom. When the body 17 is fixed to the construction surface 1, the upper part of the waterproof packing 18 is positioned between the holder 6 and the construction surface 1 as shown in FIG. 3. By doing so, as shown in FIG. 3, the overlapping part P which overlapped in non-contact can be formed between the holder 6 and the waterproof packing 18. Next, the work is completed by attaching the cover 19 to the fixed body 17. The body 17 and the cover 19 form a box-shaped rainproof cover 20 whose lower side is open.

  As described above, according to this embodiment, even if the waterproof bushing 4 is first attached to the through hole 2 of the construction surface 1 and the rainproof cover 20 is attached thereafter, the inside of the waterproof bushing 4 Since the intrusion of water into the water can be surely prevented, the work contractor is not restricted and the installation work is good.

  Moreover, in this embodiment, since the waterproof bushing main body 5 and the holder 6 were formed separately, each shape does not become complicated and each manufacture is easy.

  Furthermore, since the overlap portion P can be formed between the holder 6 and the waterproof packing 18 as described above with the rainproof cover 20 attached, the gap between the waterproof packing 18 and the construction surface 1 can be formed. It is possible to prevent water that has entered the rainproof cover 20 from entering the inside of the rainproof cover 20 beyond the holder 6.

  Next, effects of the present embodiment will be enumerated.

  The rainproof cover 20 according to this embodiment is attached to the step of inserting the waterproof bushing 4 into the through hole 2 of the construction surface 1 and the through hole 2 of the construction surface 1 to which the waterproof bushing 4 is attached. Attaching the rainproof cover 20. Therefore, it is possible to insert the waterproof bushing 4 into the through hole 2 when the wiring 3 is passed through the through hole 2 of the construction surface 1 in wiring work, without attaching the waterproof cover 20 to the built surface 1. The contractor is not limited by the construction schedule.

  Moreover, the attachment structure of the rainproof cover 20 of this embodiment has the waterproof bushing 4 inserted in the through-hole 2 of the construction surface 1, and the insertion port 16 in the position corresponding to the through-hole 2 of the construction surface 1. And a rainproof cover 20 attached to the construction surface 1, wherein the waterproof bushing 4 can be attached to the construction surface 1 in a state of being located outside the prevention cover 40.

  Therefore, it is possible to insert the waterproof bushing 4 into the through hole 2 when the wiring 3 is passed through the through hole 2 of the construction surface 1 in wiring work, without attaching the waterproof cover 20 to the built surface 1. The contractor is not limited by the construction schedule.

  In the present embodiment, the waterproof bushing 4 is a waterproof bushing 4 that is inserted into the through hole 2 of the construction surface 1, and is inserted into the wiring hole 2 provided in the construction surface 1 from the outdoor side and wired. 3, a tube portion 7 through which the tube 3 can be inserted, a plurality of multi-stage annular ribs 15 on the outer periphery of the tube portion 7, and an outer radial direction from the proximal end of the tube portion 7. A flexible waterproof bushing main body 5 provided with a flange 8 projecting from the surface, and a separating means 6 for separating the flange 8 of the waterproof bushing main body 5 from the construction surface 1. Therefore, when the waterproof bushing 4 is attached, the flange portion 8 of the waterproof bushing 4 is separated from the construction surface 1. Accordingly, even if the waterproof bushing 4 is attached before the rainproof cover 20 is attached, the rainwater flowing along the surface of the construction surface 1 is less likely to enter the waterproof bushing 4.

  In the present embodiment, the separation means 6 of the waterproof bushing 4 is formed of a member harder than the waterproof bushing main body 5, and is attached to the outer periphery of the base end of the tube portion 7 of the waterproof bushing main body 5. It is the holder 6 located between the collar part 8 and the construction surface 1. Therefore, since the holder 6 is located between the flange portion 8 of the waterproof bushing 4 and the construction surface 1, the flange portion 8 of the waterproof bushing 4 is reliably separated from the construction surface 1.

  In the present embodiment, the holder 6 is a separate body from the waterproof bushing main body 5. Therefore, each manufacture is easy. Moreover, there exists an advantage which can set a raw material suitably, such as hardness adjustment of the holder 6 and the waterproof bushing main body 5. FIG.

  In this embodiment, the holder 6 has a plate-like main body portion 10 that contacts the back surface of the flange portion 8 of the waterproof bushing main body 5 and a pair of ribs that protrude from the left-right direction of the main body portion 10 toward the construction surface 1 side. 11 and a water passage space S that is formed between the pair of left and right ribs 11 and passes through the construction surface 1 and flows downward. Therefore, the water passes through the water passage space S and is reliably discharged downward.

  Moreover, in this embodiment, the annular rib 15 formed in the pipe part 7 outer periphery of the waterproof bushing main body 5 is formed in the cross-section isosceles triangle shape. Therefore, both insertion and extraction of the waterproof bushing 4 into the through hole are easy.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. The second embodiment and the subsequent embodiments include the same components as those of the first embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In the waterproof bushing 21 according to this embodiment, rib-shaped holders 24 are formed on the left and right sides of the flange portion 23 of the waterproof bushing main body 22 toward the construction surface 1 side. Accordingly, the flange 23 of the waterproof bushing main body 22 is separated from the construction surface 1, and the water flowing down the surface of the construction surface 1 can flow downward from the water passage space S between the rib-shaped holders 24. .

  According to this embodiment, since the holder 6 and the waterproof bushing main body 5 are integrally formed, the number of parts can be reduced.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG. In the waterproof bushing 25 according to this embodiment, the large-diameter portion 28 is formed at the proximal end of the tube portion 27 of the waterproof bushing main body 26 by increasing the thickness. The large diameter portion 28 is larger than the diameter of the through-hole 2, and comes into contact with the end portion of the through-hole 2 when the tube portion 27 is inserted into the through-hole 2.

  Accordingly, the flange portion 29 of the waterproof bushing main body 26 can be separated from the construction surface 1 and water can be prevented from entering the waterproof bushing main body 26.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIGS. In the waterproof bushing 30 according to this embodiment, an insertion guide surface 32 is formed in the middle of the waterproof bushing main body 31. The insertion guide surface 32 is a tapered surface that gradually decreases in diameter toward the distal end side of the tube portion 33. Accordingly, the tube portion 33 on the distal end side with respect to the insertion guide surface 32 has a smaller diameter than the proximal end side. The annular rib 34 is formed between the flange 35 and the insertion guide surface 32.

  The holder 36 is molded from a resin harder than the waterproof bushing main body 31, ribs 37 directed toward the construction surface 1 are formed on both the left and right sides, and a cylindrical shape maintaining member 38 is formed in the center with the ribs 37. They are formed in the same direction. The shape maintaining member 38 is slightly smaller in diameter than the tube portion 33 of the waterproof bushing main body 31 and can be inserted into the tube portion 33. A plurality of small ribs 39 are formed on the outer surface of the shape maintaining member 38.

  The shape maintaining member 38 of the holder 36 is inserted into the tube portion 33 of the waterproof bushing main body 31 from the outdoor side. The holder 36 and the flange portion 35 are in a superposed state, and the shape maintaining member 38 and the tube portion 7 are integrated by pressing the small rib 39 therebetween. By inserting the shape maintaining member 38 into the tube portion 33, the rigidity of the tube portion 7 particularly on the proximal end side is improved.

  The tube portion 33 of the waterproof bushing main body 31 with the holder 36 thus integrated is inserted into the through hole 2 of the construction surface 1. At this time, since the insertion guide surface 32 is formed in the middle of the pipe portion 33 and the diameter is smaller on the distal end side than the insertion guide surface 32, as shown in FIG. The insertion operation into the hole 2 becomes easy. After the waterproof bushing main body 31 is attached to the through hole 2, the rainproof cover 20 including the body 17 and the cover 19 is attached.

  The wiring 40 passes from the lower side of the cover 19 through the insertion port 16 and is passed through the tube portion 33 of the waterproof bushing main body 31. Although a downward load is applied to the proximal end side of the pipe portion 33 due to the weight and tension of the wiring, the shape maintaining member 38 of the holder 36 is inserted into the proximal end of the pipe portion 33 to increase the rigidity. The base end side of the portion 33 is not deformed, and no gap is formed between the pipe portion 33 and the through-hole 2 so as to become an intrusion path for water.

(Embodiment 5)
A fifth embodiment of the present invention will be described with reference to FIGS. A groove 42 having a depth of 20 mm is formed on the construction surface 41 according to this embodiment. A through hole 43 is formed at the bottom of the groove 42. Therefore, in the waterproof bushing 44 according to this embodiment, the annular rib 47 of the tube portion 46 in the waterproof bushing main body 45 extends from the large-diameter portion 48 that is the separating means to the depth (20 mm) or more of the groove portion 42. The number of annular ribs 47 was increased. That is, the annular rib 47 is formed in a portion corresponding to the groove portion 42 so that the annular rib 47 becomes free and does not perform a waterproof function.

  According to this embodiment, even if the groove portion 42 is deep, the annular rib 47 reliably contacts the inner peripheral surface of the through hole 43, so that the water that passes between the pipe portion 46 and the through hole 43 has an intrusion. The rib 47 can surely prevent it.

  As mentioned above, although each suitable embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

  For example, a U-shaped waterproof packing with an open bottom is used as an example, but only a portion corresponding to the insertion opening formed in the rainproof cover body is used as an insertion opening or cutout. The waterproof packing covers substantially the entire back surface of the body, and the waterproof bushing's buttocks are brought into close contact with a part of the waterproof packing corresponding to the insertion opening of the body, from the opened part. You may make it difficult for water to penetrate into the body.

The perspective view which shows the rainproof cover which concerns on Embodiment 1 of this invention. Sectional drawing of a waterproof bushing. FIG. 3 is an enlarged sectional view showing a DA part indicated by an arrow in FIG. 2. The perspective view which shows the combined state of a holder and a waterproof bushing main body. The perspective view which shows the state before the coupling | bonding of a holder and a waterproof bushing main body. The side view which shows the combined state of a holder and a waterproof bushing main body. The enlarged view which shows the DA part DA shown in FIG. The perspective view seen from the back which shows the combined state of a holder and a waterproof bushing main body. Sectional drawing which shows the state which the collar part separated from the construction surface. Sectional drawing which shows the waterproof bushing which concerns on Embodiment 2 of this invention. Sectional drawing which shows the waterproof bushing which concerns on Embodiment 3 of this invention. Sectional drawing of the waterproof bushing which shows Embodiment 4 of this invention. Sectional drawing which shows the state inserted in a through-hole in a waterproof bushing main body. The perspective view which shows the state before the coupling | bonding of a holder and a waterproof bushing main body. The perspective view which shows the combined state of a holder and a waterproof bushing main body. Sectional drawing which shows the rainproof cover which concerns on Embodiment 5. FIG. Sectional drawing which shows a waterproof bushing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,41 Construction surface 2,43 Through-hole 3,40 Wiring 4,21,25,30,44 Waterproof bushing 5,22,26,31,45 Waterproof bushing main body 6,24,36 Holder (separation means)
7, 27, 33, 46 Tube portion 8, 23, 29, 35 Gutter portion 9, 28, 48 Large diameter portion 10 Body portion 15, 34, 47 Annular rib 32 Insertion guide surface 38 Shape maintaining member 42 Groove portion S Water passage space P overlap part

Claims (7)

A waterproof cover mounting structure comprising: a waterproof bushing inserted into the through hole of the construction surface; and a rainproof cover that has an insertion opening at a position corresponding to the through hole of the construction surface and is attached to the construction surface. And
The waterproof bushing, while located outside the anti-rain cover, Ri structural der attachable to erecting surface,
The waterproof bushing is
A pipe portion that is inserted from the outdoor side into the through hole provided in the construction surface and through which wiring can be inserted, is formed in a plurality of stages on the outer periphery of the pipe portion, and is in contact with the inner peripheral surface of the through hole. A flexible waterproof bushing main body comprising: an annular rib for contacting; and a flange projecting in an outer diameter direction from the proximal end of the tube portion;
Separating means for separating the collar portion of the waterproof bushing main body from the construction surface ,
The separation means, the abutting plate-shaped main body portion to the flange portion of the waterproof bushing body, a pair of ribs projecting toward the lateral direction of the body portion to the erecting side, between the pair of ribs A waterproof cover mounting structure comprising: a water passage space formed through the construction surface and allowing water to flow downward through the construction surface. The spacing means is formed of a member that is harder than the waterproof bushing main body, and is mounted on the outer periphery of the proximal end of the tube portion of the waterproof bushing main body so as to be positioned between the flange portion and the construction surface of the waterproof bushing main body. The waterproof cover mounting structure according to claim 1 , wherein the waterproof cover mounting structure is a holder. Said separating means is mounting structure of the waterproof cover according to claim 1 or claim 2, wherein said being waterproof bushing body and integrally molded. The separation means is a holder that is mounted on the outdoor side of the flange portion of the waterproof bushing, and the holder is formed of a member that is harder than the bushing body, and is a cylindrical shape that is fitted to the inner periphery of the tube portion near the base end mounting structure of the waterproof cover according to claim 1, wherein the further comprising a shape maintaining member. In the structure in which the through hole is formed in a groove formed on the construction surface side and recessed from the surface on the construction surface side, the annular rib on the outer periphery of the tube portion of the waterproof bushing body is at least the separating means The waterproof cover mounting structure according to any one of claims 1 to 4 , wherein the waterproof cover is provided in a distal direction at a depth equal to or greater than a depth of the groove. A waterproof bushing formed of a flexible member inserted into the through hole of the construction surface, a rainproof cover having an insertion port at a position corresponding to the through hole of the construction surface, and a back surface of the rainproof cover A waterproof packing to be attached,
The waterproof cover mounting structure according to any one of claims 1 to 5, wherein the flange portion of the waterproof bushing and the waterproof packing are in close contact with each other. A waterproof bushing formed of a flexible member inserted into the through hole of the construction surface, a rainproof cover having an insertion port at a position corresponding to the through hole of the construction surface, and a back surface of the rainproof cover A waterproof packing to be attached,
The waterproof cover according to any one of claims 1 to 6 , wherein the waterproof packing has an overlap portion positioned below the upper end of the flange portion of the waterproof bushing from the peripheral edge portion of the opening portion of the waterproof packing. Mounting structure.

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