Wall part penetration member and fixing structure and fixing method of the same

Abstract

To provide a wall part penetration member etc. which is easily installed and can exert high fixing force even when a diameter of a through hole is large.SOLUTION: A water stop member fixing part 25 to which a first water stop member 7 is fixed is provided at the outer periphery side of a body 11. The water stop member fixing part 25 has an inclined part 25a which has a diameter larger than that of a male screw part 17 and in which an outer diameter is reduced from the first flange part 13 side to the male screw part 17 side. The annular first water stop member 7 is pasted along the inclined part 25a and fixed. When a ring member 5 is rotated relative to a body sleeve 3 to move the ring member 5 close to the body sleeve 3, the first water stop member 7 is pressed by the end surface of the protrusion part 27 of the ring member 5. Since the first water stop member 7 is disposed on the outer peripheral surface of the inclined part 25a, when the first water stop member 7 is pressed by the protrusion part 27, the first water stop member 7 is deformed to the outer periphery side along the inclined part 25a and consequently its diameter can be expanded.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a wall-penetrating member that is attached to a through hole provided in a wall. [Background technology]

[0002] Conventionally, when outdoor wiring for equipment installed outdoors is pulled indoors, the wiring needs to be inserted through a wall that separates the indoors from the outdoors. Since it is necessary to prevent water from entering through the penetration part, a wall penetration member is provided at the penetration part.

[0003] For example, a resin bushing may be used as such a wall-penetrating member, and with the bushing placed in the through hole, a sealant such as silicone sealant may be used to fix the bushing and ensure waterproofing.

[0004] However, wet wall penetration structures using sealants have a large variation in watertightness depending on the skill of the worker, making it difficult to ensure sufficient watertightness. Also, it takes more than 24 hours for the sealant to dry, which is a problem in that it takes a long time to install.

[0005] In response to this, a wall-penetrating member has been proposed that can be easily fixed by working from one side of the wall without using a sealant (Patent Document 1). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2019-100539 A Summary of the Invention [Problem to be solved by the invention]

[0007] The dry method as described in Patent Document 1 allows work to be done from one side of the wall and does not use a sealant, making it easy to work with. In Patent Document 1, the water-stopping member is expanded in diameter to be brought into close contact with the inner surface of the through hole, ensuring water-stopping performance.

[0008] However, in Patent Document 1, it is necessary to make the tapered fixing member bite into the inside of the water-stopping member, but if the tip of the fixing member does not bite into the inner surface of the water-stopping member and is simply compressed in the axial direction, there is a risk that the water-stopping member cannot be sufficiently expanded in diameter. Also, if the diameter of the through hole becomes large, the hole diameter varies greatly, so that when the water-stopping material is expanded and pressed against the inner surface of the through hole, the degree of compression of the water-stopping material becomes uneven, which may result in a decrease in water-stopping ability.

[0009] In addition, in Patent Document 1, since the fixing member is used for fixing in the through hole, there is a problem that the fixing force is not stable when the through hole diameter is large. Also, since the fixing is performed only by the fixing member, there is a risk that the fixing force will be insufficient.

[0010] The present invention has been made in consideration of such problems, and aims to provide a wall-penetrating member, etc. that is easy to install and can exert a high fixing force even when the diameter of the through hole is large. [Means for solving the problem]

[0011] In order to achieve the above-mentioned object, a first invention is a wall-penetrating member to be fixed to a through hole in a wall, comprising: a cylindrical main body; a main body sleeve having a first flange portion arranged on one end side of the main body and protruding in a radial direction; a water-stopping member fixing portion provided on the outer periphery of the main body and to which a first water-stopping member is fixed; and a male thread portion formed from the water-stopping member fixing portion toward the other end side of the main body; and a ring member having a second flange portion protruding in an outer radial direction, a protrusion protruding to the front side of the second flange portion, and a female thread portion formed on an inner surface of the protrusion and capable of screwing with the male thread portion, wherein the water-stopping member fixing portion has an inclined portion whose outer diameter decreases from the first flange portion side toward the male thread portion side, the first water-stopping member is fixed along the inclined portion, and when the ring member is rotated relative to the main body sleeve, the first water-stopping member is pressed by the protrusion of the ring member, and the first water-stopping member can be deformed along the inclined portion.

[0012] The protrusion may have an inclined surface whose outer diameter decreases from the second flange portion side toward the tip side of the protrusion, and when the ring member is rotated relative to the main sleeve, the protrusion may be caused to bite into the inner side of the first water-stopping member, thereby deforming the first water-stopping member toward the outer periphery.

[0013] A double-sided tape may be provided on a rear surface of the first flange portion.

[0014] A groove may be formed in a circumferential direction on a back surface of the first flange portion, and a second water-stopping member may be disposed in the groove.

[0015] Protrusions may be provided intermittently in a circumferential direction on a front surface side of the second flange portion near an outer edge of the second flange portion, and a space may be formed between the protrusions and the protruding portion.

[0016] On the back side of the second flange portion, near the outer edge of the second flange portion, convex portions may be provided intermittently in the circumferential direction, and the convex portions and the protrusions may be arranged at different positions in the circumferential direction on either side of the second flange portion.

[0017] A cylindrical portion may be provided on the rear surface side of the second flange portion near a center of the second flange portion, and a space may be formed between the protrusion and the cylindrical portion.

[0018] At least a portion of the protruding portion may have a groove formed therein in a radial direction of the ring member.

[0019] In this case, the protrusion may have a convex portion having the groove and a convex portion not having the groove, and the protrusion may be positioned such that the circumferential distance between the convex portion having the groove and the protrusion is relatively longer than the circumferential distance between the convex portion not having the groove and the protrusion.

[0020] According to the first aspect of the present invention, the wall can be sandwiched between the first flange portion and the second flange portion. Therefore, for example, even if the diameter of the through hole is large and there is a large variation in the diameter, the wall-penetrating member can be firmly fixed to the wall.

[0021] In addition, since the water-stopping member fixing portion on which the first water-stopping member is disposed has an inclined portion, and the first water-stopping member is attached in a state in which it protrudes from the through-hole diameter, when the first water-stopping member is pressed by the protrusion of the ring member, the first water-stopping member can be reliably and substantially uniformly deformed outward along the inclination, thereby achieving stable water-stopping performance regardless of the operator.

[0022] Furthermore, by forming an inclined surface also on the tip side of the protrusion, the first water-stopping member can be more reliably deformed outward along the inclined portion and the inclined surface.

[0023] Also, by arranging double-sided tape on the back surface of the first flange portion, the main sleeve can be temporarily fixed when it is attached from the inner surface side of the wall portion. Also, by temporarily fixing the main sleeve to the wall portion, it is possible to prevent the main sleeve from rotating when the ring member is attached, and the double-sided tape can function as a member for preventing the main sleeve from rotating.

[0024] Furthermore, by forming a groove on the back surface of the first flange portion and arranging the second water-stopping member in the groove, it is possible to more reliably prevent water from entering the room.

[0025] In addition, by providing projections intermittently in the circumferential direction on the front surface of the second flange and forming spaces between the projections, water flowing down the wall can be discharged downward through the spaces, which prevents water from accumulating between the second flange and the wall and prevents water from entering the through hole.

[0026] By providing the convex portions intermittently in the circumferential direction near the outer edge of the back side of the second flange portion, the convex portions can be used as portions to hook fingers when rotating the ring member. In addition, by arranging the convex portions and the protrusions at different positions in the circumferential direction with the second flange portion in between, it is possible to prevent water from entering the inside of the ring member by running down the convex portions from the protrusions.

[0027] Furthermore, by providing a cylindrical portion for inserting an electric wire or the like at approximately the center of the second flange portion, it is possible to reliably support the electric wire or the like. At this time, since a space is formed between the protrusion and the cylindrical portion, it is possible to prevent water from entering the inside of the cylindrical portion through the protrusion.

[0028] Furthermore, by forming a groove in the radial direction of the ring member on at least some of the protrusions, a tool can be inserted into the groove to rotate the ring member, which allows the ring member to be reliably rotated and fixed.

[0029] In addition, in the case of having a convex portion having a groove and a convex portion not having a groove, the circumferential distance between the convex portion having a groove and the protrusion is made relatively longer compared to the circumferential distance between the convex portion not having a groove and the protrusion, thereby preventing water from entering the groove along the protrusion.

[0030] The second invention is a fixing structure for a wall-penetrating member according to the first invention, in which the wall-penetrating member is fixed to a through hole in a wall, wherein the outer diameters of the first flange portion and the second flange portion are larger than the inner diameter of the through hole, the maximum outer diameter of the inclined portion and the outer diameter of the protrusion are smaller than the inner diameter of the through hole, and the maximum outer diameter of the first water-stopping member when fixed to the water-stopping member fixing portion is larger than the through hole, the main body of the main body sleeve is inserted from the indoor side of the wall, a part of the first water-stopping member is deformed and inserted into the through hole, the wall is sandwiched between the first flange portion and the second flange portion, and the first water-stopping member pressed by the protrusion is deformed along the inclined portion and pressed against the inner surface of the through hole.

[0031] According to the second aspect of the present invention, it is possible to obtain a fixing structure for a wall-penetrating member that has excellent water-stopping properties and excellent workability in construction.

[0032] A third invention is a method for fixing a wall-penetrating member to a through hole in a wall using the wall-penetrating member of the first invention, wherein the outer diameters of the first flange portion and the second flange portion are larger than the inner diameter of the through hole, the maximum outer diameter of the inclined portion and the outer diameter of the protrusion are smaller than the inner diameter of the through hole, and the maximum outer diameter of the first water-stopping member in a state fixed to the water-stopping member fixing portion is larger than the through hole, and the method is characterized in that the main body of the main body sleeve is inserted from the indoor side of the wall while deforming a part of the first water-stopping member, the ring member is rotated relative to the main body sleeve from the outer surface side of the wall, and the first water-stopping member is pressed by the protrusion to deform the first water-stopping member along the inclined portion and press it against the inner surface of the through hole, while sandwiching the wall between the first flange portion and the second flange portion.

[0033] On the back side of the second flange portion, near the outer edge portion of the second flange portion, convex portions are provided intermittently in the circumferential direction, and at least some of the convex portions have grooves formed in the radial direction of the ring member, and when rotating the ring member relative to the main body sleeve, a tool can be inserted into the grooves provided in the convex portions and the ring member can be rotated using the tool, and the ring member can be rotated until the tip of the main body can be seen in the grooves of the convex portions when viewed from the side.

[0034] According to the third aspect of the present invention, the first water-stopping member can be deformed and pressed against the inner surface of the through-hole simply by rotating the ring member, thereby ensuring water-stopping performance, resulting in good workability in construction.

[0035] In addition, by providing a plurality of convex portions near the outer edge of the second flange portion and forming grooves in at least some of the convex portions in the radial direction of the ring member, when rotating the ring member relative to the main sleeve, a tool can be inserted into the grooves provided in the convex portions to rotate the ring member. This allows the ring member to be rotated reliably. Also, by rotating the ring member until the tip of the main body can be seen in the grooves of the convex portions when viewed from the side, the ring member can be screwed reliably into the main sleeve. This allows the first water-stopping member to be sufficiently enlarged in diameter, and water-stopping properties can be reliably ensured. Effect of the Invention

[0036] According to the present invention, it is possible to provide a wall-penetrating member etc. that is easy to install and can exert a high fixing force even when the diameter of the through hole is large. [Brief description of the drawings]

[0037] [Figure 1] FIG. [Diagram 2] FIG. 2 is an assembled perspective view of the wall-penetrating member 1. [Diagram 3] FIG. 2A is an exploded cross-sectional view of the wall-penetrating member 1, and FIG. 2B is an assembled cross-sectional view of the wall-penetrating member 1. [Figure 4]4A to 4C are diagrams showing the operation of the wall-penetrating member 1. [Diagram 5] 6(a) and 6(b) are diagrams showing a process of attaching the wall-penetrating member 1 to a wall 29. FIG. [Figure 6] 1A and 1B are diagrams showing a wall-penetrating member fixing structure 10. [Figure 7] FIG. 2 is an exploded cross-sectional view of the wall-penetrating member 1a. [Figure 8] 4A to 4C are diagrams showing the operation of the wall-penetrating member 1a. [Figure 9] 4A is a perspective view showing a ring member 5b, and FIG. 4B is a cross-sectional view of the ring member 5b. [Figure 10] FIG. 2 is a diagram showing a wall-penetrating member fixing structure 10a. [Figure 11] Cross-sectional view of line CC in Figure 10. [Figure 12] FIG. [Figure 13] FIG. 4 is an assembled perspective view of the wall-penetrating member 1c. [Figure 14] 1A is a front view of the ring member 5c, and FIG. 1B is a rear view of the ring member 5c. [Figure 15] FIG. 4 is a front view of a ring member 5c, showing a perspective view of a protrusion 6 on the rear side. [Figure 16] 10A to 10C are diagrams showing a method of installing the wall-penetrating member 1c. [Figure 17] 1A is a diagram showing a wall-penetrating member fixing structure 10b, FIG. 1B is an enlarged view of part E in FIG. 1A, and FIG. 1C is a diagram showing a state in which the ring member 5 is not fully screwed in compared to FIG. [Figure 18] 13 is a cross-sectional view passing through the vicinity of a protrusion 35 of the wall-penetrating member fixing structure 10b. FIG. [Figure 19] 11 is a cross-sectional view passing through the vicinity of a protrusion 6 of the wall-penetrating member fixing structure 10b. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] The wall-penetrating member according to the present invention will be described below. Fig. 1 is an exploded perspective view showing a wall-penetrating member 1 fixed to a through hole in a wall, and Fig. 2 is an assembled perspective view showing the wall-penetrating member 1. Fig. 3(a) is an exploded cross-sectional view showing the wall-penetrating member 1, and Fig. 3(b) is an assembled cross-sectional view showing the wall-penetrating member 1.

[0039] The wall-penetrating member 1 mainly comprises a main body sleeve 3, a ring member 5, a first water-stopping member 7, a second water-stopping member 9, etc. The main body sleeve 3 has a cylindrical main body 11 and a first flange portion 13 arranged on one end side of the main body 11 (the right side in FIG. 3(a)). The first flange portion 13 protrudes radially outward over the entire circumference of the main body 11. The shape of the first flange portion 13 may be rectangular as shown in the figure, but may also be circular or another polygonal shape. Here, in FIG. 3(a), the right side surface of the first flange portion 13 is the front side (front face) of the first flange portion 13, and the left side surface (the surface on the main body 11 side) is the back side of the first flange portion 13.

[0040] Double-sided tape 23 is provided on the back surface side of first flange portion 13. In the example shown in Fig. 1 and Fig. 2, double-sided tape 23 is arranged along each side of the outer periphery of first flange portion 13, which is substantially rectangular, for example.

[0041] Moreover, on the back surface of the first flange portion 13, inside the area surrounded by the double-sided tape 23, a groove 15 is provided in the circumferential direction so as to surround the main body 11. An annular second water-stopping member 9 is disposed in the groove 15. The second water-stopping member 9 is preferably, for example, an elastic body or a water-swellable member, and a water-swellable nonwoven fabric or the like can be used.

[0042] A water-stopping member fixing portion 25 to which the first water-stopping member 7 is fixed is provided on the outer periphery of the main body 11. A male thread portion 17 is provided on the outer periphery of the main body 11 from the water-stopping member fixing portion 25 toward the other end side of the main body 11 (the left side in FIG. 3(a)). The water-stopping member fixing portion 25 has a larger diameter than the male thread portion 17, and has an inclined portion 25a whose outer diameter decreases from the first flange portion 13 side toward the male thread portion 17 side.

[0043] 3(b), the annular first water-stopping member 7 is attached and fixed along the inclined portion 25a. Since the inner diameter of the first water-stopping member 7 is slightly smaller than the outer diameter of the water-stopping member fixing part 25, the inner surface of the first water-stopping member 7 is in close contact with the outer circumferential surface of the water-stopping member fixing part 25. The first water-stopping member 7 is preferably an elastic body or a water-swellable member, and more preferably a foam, for example a water-swellable urethane foam.

[0044] The tensile strength of the foam constituting the first water-stopping member 7 is desirably 270 kPa or more. If the first water-stopping member 7 is too soft, when the ring member 5 is moved to press the first water-stopping member 7, the first water-stopping member 7 will be crushed in the axial direction, and the diameter of the first water-stopping member 7 will not be able to be sufficiently expanded.

[0045] In fact, when a test was conducted using a first water-stopping member 7 with a tensile strength of 270 kPa, the diameter could be sufficiently expanded. On the other hand, when the same test was conducted using a foam with a different tensile strength, the resistance when the ring member 5 was pressed in was too large for a first water-stopping member 7 with a tensile strength of 390 kPa, and workability deteriorated. The tensile strength of the foam can be measured at a pulling speed of 200 mm / min and a thickness of 15 mm according to JIS K6400-5 (2024).

[0046] In the illustrated example, the cross-sectional shape of the first water-stopping member 7 is substantially rectangular, and by arranging the first water-stopping member 7 along the inclined portion 25a, a part of the first water-stopping member 7 protrudes in the radial direction of the water-stopping member fixing portion 25. Note that, in the axial cross section, the inclination angle of the inclined portion 25a is not particularly limited, but for example, as illustrated, the component of the first water-stopping member 7 (inclined portion 25a) facing toward the ring member 5 side described later may be strengthened (i.e., the angle of the inclined surface with respect to the axial direction may be made larger than 45°), or the component of the first water-stopping member 7 (inclined portion 25a) facing toward the radially outward side may be strengthened.

[0047] The ring member 5 has a second flange portion 21 protruding in the outer diameter direction and a protrusion 27 protruding forward of the second flange portion 21. That is, the outer diameter of the second flange portion 21 is larger than that of the protrusion 27. Here, in FIG. 3(a), the left side of the figure is the back side of the second flange portion 21, and the right side (the surface on the protrusion 27 side) is the front side of the second flange portion 21. On the back side of the second flange portion 21, protrusions 6 are formed intermittently in the circumferential direction so that the user can easily rotate the ring member 5 by hand. The protrusions 6 protrude in the back direction of the second flange portion 21. That is, the back side of the second flange portion 21 has an uneven shape in the circumferential direction. The front side of the second flange portion 21 (the surface facing the main body sleeve 3) is flat.

[0048] A female thread portion 19 that can be screwed into the male thread portion 17 of the main body sleeve 3 is formed on the inner surface of the protrusion 27. As shown in Fig. 3(b), the main body sleeve 3 and the ring member 5 are integrated by screwing the male thread portion 17 into the female thread portion 19. At this time, in this embodiment, the surface of the protrusion 27 facing the main body sleeve 3 (axial end surface) is formed by a surface perpendicular to the axial direction.

[0049] Next, the operation of the ring member 5 and the main body sleeve 3 will be described. Fig. 4 is a diagram showing a state in which the ring member 5 is rotated with respect to the main body sleeve 3 from the state shown in Fig. 3(b) to relatively move the ring member 5 toward the main body sleeve 3. As described above, when the ring member 5 is rotated, the female threaded portion 19 and the male threaded portion 17 are screwed together to move the ring member 5 toward the main body sleeve 3.

[0050] When the ring member 5 is rotated relative to the main body sleeve 3 and moved closer to the main body sleeve 3 (arrow A in the figure), the first water-stopping member 7 is pressed by the end face of the protrusion 27 of the ring member 5. As described above, since the first water-stopping member 7 is disposed on the outer peripheral surface of the inclined portion 25a, when the first water-stopping member 7 is pressed and compressed by the protrusion 27, the first water-stopping member 7 can be deformed toward the outer periphery along the inclined portion 25a and expanded in diameter (arrow B in the figure). In other words, the first water-stopping member 7 can be deformed so as to expand in diameter beyond the outer diameter of the protrusion 27 and the main body 11.

[0051] As mentioned above, since the end face of the protrusion 27 is flat, the frictional force with the first water-stopping member 7 is not very large; however, a sliding member capable of reducing friction with the first water-stopping member 7 may be arranged on the end face of the protrusion 27.

[0052] Next, a method of fixing the wall-penetrating member 1 to a through hole in a wall using the wall-penetrating member 1 will be described. First, as shown in FIG. 5(a), a through hole 31 of a predetermined size is formed in a wall 29. At this time, the size of the through hole 31 is determined so that the outer diameters of the first flange portion 13 and the second flange portion 21 are larger than the inner diameter of the through hole 31, and the outer diameters of the main body 11 (maximum outer diameter of the inclined portion 25a) and the protrusion 27 are smaller than the inner diameter of the through hole 31. Note that the maximum outer diameter of the first water-stopping member 7 in a state fixed to the water-stopping member fixing portion 25 is slightly larger than the inner diameter of the through hole 31.

[0053] 5(b), the main body 11 of the main sleeve 3 is inserted from the indoor side of the wall portion 29 (the right side in the figure). At this time, since the outer diameter of the first water-stopping member 7 is slightly larger than the inner diameter of the through hole 31, the main body 11 of the main sleeve 3 is inserted into the through hole 31 while the vicinity of the outer edge of the first water-stopping member 7 is deformed. At this time, the first water-stopping member 7 deforms approximately uniformly around the entire circumference, so that it functions as a guide for the through hole 31 and the central axis of the main sleeve 3 and the central axis of the through hole 31 can be approximately aligned.

[0054] When the main sleeve 3 is completely pushed into the through hole 31, the front surface of the main sleeve 3 comes into contact with the indoor surface of the wall portion 29 of the outer periphery of the through hole 31 via the double-sided tape 23. Therefore, the main sleeve 3 can be temporarily fixed to the wall portion 29 by the double-sided tape 23. At this time, as described above, since the outer diameter of the first water-stopping member arranged on the main sleeve 3 is larger than that of the through hole 31, the central axes of the main sleeve 3 and the through hole 31 can be aligned when the main sleeve 3 is inserted into the through hole 31. Therefore, the main sleeve 3 can be temporarily fixed to the wall portion 29 with the central axes of the main sleeve 3 and the through hole 31 aligned. At this time, the second water-stopping member 9 is deformed and the second water-stopping member 9 is in close contact with the indoor surface of the wall portion 29 of the outer periphery of the through hole 31.

[0055] 6, when the ring member 5 is attached to the main body sleeve 3 and rotated, the ring member 5 can be moved toward the main body sleeve 3 as described above. Therefore, when the ring member 5 is rotated relative to the main body sleeve 3 from the outer surface side of the wall portion 29, the first water-stopping member 7 is pressed and compressed by the protrusion 27 as described above, and the first water-stopping member 7 is deformed so as to expand in diameter along the inclined portion 25a, and can be pressed against the inner surface of the through hole 31. Therefore, the first water-stopping member 7 is further brought into close contact with the inner surface of the through hole 31, ensuring water-stopping properties.

[0056] When the ring member 5 is completely screwed in, the front surface of the second flange portion 21 comes into contact with the outer surface of the wall portion 29 on the outer periphery of the through hole 31. In other words, the wall portion 29 is sandwiched between the first flange portion 13 and the second flange portion 21, and the wall-penetrating member 1 is fixed to the wall portion 29.

[0057] In this manner, the wall-penetrating member 1 is fixed to the wall 29, thereby obtaining the wall-penetrating member fixing structure 10. Thereafter, electric wires or the like are inserted into the wall-penetrating member 1, thereby completing the construction.

[0058] As described above, according to this embodiment, the wall-penetrating member 1 is fixed to the wall portion 29 by sandwiching the wall portion 29 between the first flange portion 13 and the second flange portion 21, so that the wall-penetrating member 1 can be firmly fixed to the wall portion 29 regardless of the size of the through hole 31.

[0059] In addition, since the first water-stopping member 7 is fixed to the outer surface of the inclined portion 25a, when the first water-stopping member 7 is pressed toward the inclined portion 25a by the protrusion 27 of the ring member 5 and compressed, the first water-stopping member 7 can be deformed so as to efficiently expand in the radially outward direction by the inclined portion 25a. Therefore, the first water-stopping member 7 can be reliably brought into close contact with the inner surface of the through hole 31.

[0060] In addition, at this time, because the first water-stopping member 7 is fixed to the inclined portion 25a, even before the ring member 5 is attached, the first water-stopping member 7 can be disposed facing diagonally outward, and a part of the first water-stopping member 7 (the part with the maximum outer diameter) can be made larger than the outer diameter of the main body 11. Therefore, when the main body sleeve 3 is inserted into the through hole 31, the repulsive force of the first water-stopping member 7 makes it easy to align the center of the through hole 31 with the center of the main body sleeve 3.

[0061] Furthermore, by positioning the second water-stopping member 9 on the back surface of the first flange portion 13, even if water should infiltrate into the gap between the first water-stopping member 7 and the through hole 31, it is possible to prevent the water from infiltrating into the room.

[0062] In addition, by using the double-sided tape 23, the main body sleeve 3 can be easily temporarily fixed to the wall portion 29. Therefore, during the subsequent rotation operation of the ring member 5, it is possible to prevent the main body sleeve 3 from coming off the wall portion 29 and to prevent the main body sleeve 3 from rotating or becoming misaligned.

[0063] The method of temporarily fixing the main sleeve 3 to the wall portion 29 (the structure for preventing the main sleeve 3 from rotating during the rotation operation of the ring member 5) is not limited to the double-sided tape 23, and other methods may be used. Furthermore, if the operation is possible, it is not necessary to temporarily fix the main sleeve 3. Even in this case, when the ring member 5 is tightened, the first water-stopping member 7 is strongly pressed against the inner surface of the through hole 31 almost uniformly over the entire circumference, so that the central axes of the main sleeve 3 and the ring member 5 and the central axis of the through hole 31 can be easily aligned, and the wall-penetrating member 1 can be fixed to the wall portion 29 while maintaining this state.

[0064] Next, a second embodiment will be described. Fig. 7 is an exploded cross-sectional view showing a wall-penetrating member 1a according to the second embodiment. In the following description, components having the same functions as the wall-penetrating member 1 are given the same reference numerals as in Figs. 1 to 6, and duplicated descriptions will be omitted.

[0065] The wall-penetrating member 1a has a configuration similar to that of the wall-penetrating member 1, but differs in that a ring member 5a is used. The ring member 5a has a shape similar to that of the ring member 5, but differs in the shape of the protrusion 27. The protrusion 27 of the ring member 5a has an inclined surface 33 whose outer diameter decreases from the second flange portion 21 side toward the tip side of the protrusion 27. Note that, in the axial cross section, the inclination angle of the inclined surface 33 (the angle of the inclined surface with respect to the axial direction) is not particularly limited, but may be smaller than the inclination angle of the inclined portion 25a as shown in the figure.

[0066] 8 is a diagram showing the operation of the wall-penetrating member 1a. The wall-penetrating member 1a can be fixed to the wall 29 in the same manner as the wall-penetrating member 1. That is, when the ring member 5a is rotated with respect to the main body sleeve 3 temporarily fixed to the wall 29, the wall-penetrating member 1a can press and deform the first water-stopping member 7 with the protrusion 27. At this time, since the protrusion 27 has an inclined surface 33, the first water-stopping member 7 can be deformed along the inclined surface 33. That is, when the ring member 5a is rotated with respect to the main body sleeve 3 and the ring member 5 is moved toward the main body sleeve 3 (arrow A in the figure), the tip of the protrusion 27 (inclined surface 33) is caused to bite into the inner periphery of the first water-stopping member 7, and the first water-stopping member 7 can be deformed so as to expand in diameter toward the outer periphery (arrow B in the figure).

[0067] According to the second embodiment, it is possible to obtain the same effects as those of the first embodiment. In addition, the inclined surface 33 of the protrusion 27 allows the first water-stopping member 7 to be deformed radially outwardly and to be in close contact with the inner surface of the through hole 31 more efficiently.

[0068] Next, a third embodiment will be described. Fig. 9(a) is a perspective view of a ring member 5b used in a wall-penetrating member according to the third embodiment, and Fig. 9(b) is a cross-sectional view of the ring member 5b. The ring member 5b has a configuration similar to that of the ring member 5a, but differs mainly in the shape of the second flange portion 21.

[0069] On the front side of the second flange portion 21 (the side facing the main body sleeve 3) and near the outer edge of the second flange portion 21, protrusions 35 are provided intermittently in the circumferential direction. The protrusions 35 are formed spaced radially outward from the protruding portion 27. For this reason, as shown in FIG. 9(b), a space (gap) is formed between the inner peripheral surface of the protrusions 35 and the outer peripheral surface of the protruding portion 27.

[0070] Fig. 10 is a cross-sectional view showing a wall-penetrating member fixing structure 10a in which a wall-penetrating member 1b using a ring member 5b is fixed to a wall 29, and Fig. 11 is a cross-sectional view taken along line CC in Fig. 10. As described above, by rotating the ring member 5b and screwing it into the main body sleeve 3, the wall 29 is sandwiched between the first flange portion 13 and the second flange portion 21, and the wall-penetrating member 1b is fixed to the wall 29. At this time, since a protrusion 35 is formed on the front surface of the second flange portion 21, the tip of the protrusion 35 comes into contact with the wall 29.

[0071] In this case, a gap is formed between the wall portion 29 and the surface of the second flange portion 21 other than the protrusion 35. Moreover, since the protrusions 35 are disposed discontinuously in the circumferential direction, the gap between the wall portion 29 and the surface of the second flange portion 21 other than the protrusion 35 communicates with the outside at a portion other than the protrusion 35. Moreover, as described above, a gap is also formed between the protrusion 35 and the protruding portion 27, and this gap continues in the circumferential direction.

[0072] 10, for example, when water flows down the surface of wall 29 on the outdoor side (left side in the figure), the water can flow into the gap between second flange 21 and wall 29 from a portion other than protrusion 35. In this case, as shown in Fig. 11, water that flows into wall-penetrating member 1b from above flows through the gap between protrusion 35 on the outer periphery of projection 27, and is discharged downward to the outside of wall-penetrating member 1b from a portion other than protrusion 35 (arrow D in the figure).

[0073] In this way, by deliberately forming a circumferentially continuous gap between the second flange portion 21 and the wall portion 29, water that penetrates into the gap between the second flange portion 21 and the wall portion 29 does not remain between the protrusion 27 and the inner surface of the through hole 31, but is quickly discharged to the outside, thereby preventing water from seeping into the first water-stopping member 7.

[0074] According to the third embodiment, it is possible to obtain the same effects as those of the first embodiment. Furthermore, by using the ring member 5b having the projections 35, even if water that flows down the outer surface of the wall portion 29 enters between the second flange portion 21 and the wall portion 29, the water can be efficiently discharged, so that it is possible to prevent the water from accumulating on the outer periphery of the projections 27 and seeping into the gap with the first water-stopping member 7.

[0075] Next, a fourth embodiment will be described. Fig. 12 is an exploded perspective view of a wall-penetrating member 1c consisting of a ring member 5c and a main body sleeve 3, and Fig. 13 is an assembled perspective view of the wall-penetrating member 1c. The ring member 5c has a structure similar to that of the ring member 5b, etc., but differs mainly in the shape of the protrusion 6, etc.

[0076] Fig. 14(a) is a front view of ring member 5c, and Fig. 14(b) is a rear view of ring member 5c. As with ring member 5b described above, a plurality of protrusions 35 are provided in the circumferential direction on the front side of second flange portion 21 of ring member 5c near the outer edge of second flange portion 21. In addition, convex portions 6 are provided intermittently in the circumferential direction on the rear side of second flange portion 21 near the outer edge of second flange portion 21.

[0077] Further, a cylindrical tube portion 39 is provided on the back side of the second flange portion 21 near the center of the second flange portion 21. An electric wire or the like is inserted into the inside of the tube portion 39. Here, the protrusion 6 and the tube portion 39 are not connected in the radial direction, and a space is formed between the inner peripheral surface of the protrusion 6 and the outer peripheral surface of the tube portion 39.

[0078] Further, with respect to the multiple protrusions 6 formed in the circumferential direction, at least some of the protrusions 6 have grooves 37 formed in the radial direction of the ring member 5c. The grooves 37 are continuously formed from the outer peripheral surface side of the protrusions 6 to the inner peripheral surface of the tubular portion 39. That is, the tubular portion 39 is divided in the circumferential direction at the locations of the grooves 37. In the illustrated example, the grooves 37 are formed in a pair of protrusions 6 facing each other, so that the tubular portion 39 is divided at two locations in the circumferential direction at each groove 37.

[0079] FIG. 15 is a front view of the ring member 5c, showing the arrangement of the convex portion 6 on the back side of the second flange portion 21. The convex portion 6 and the protrusion 35 are arranged at different positions in the circumferential direction with the second flange portion 21 in between. As described above, a groove 37 is formed in some of the convex portions 6. The protrusion 35 is not arranged near the convex portion 6 in which the groove 37 is formed. For example, in the illustrated example, a pair of convex portions 6 having a groove 37 are arranged at positions facing each other, and two convex portions 6 without a groove 37 are formed between the convex portions 6 having the groove 37 in the circumferential direction. That is, one convex portion 6 having a groove 37 and two convex portions 6 without a groove 37 are alternately arranged at approximately equal intervals in the circumferential direction.

[0080] In this case, one protrusion 35 is disposed on each of the circumferential sides of the convex portion 6 having the groove 37, close to the convex portion 6 not having the groove 37, and two protrusions 35 are disposed between the convex portions 6 not having the groove 37. Therefore, the protrusions 35 are disposed at positions such that the circumferential distance between the convex portion 6 having the groove 37 and the protrusions 35 is relatively longer than the circumferential distance between the convex portion 6 not having the groove 37 and the protrusions 35. In other words, the protrusions 35 are disposed at positions away from the grooves 37.

[0081] Next, a method for fixing the wall-penetrating member 1c will be described. As in the above-described embodiments, the ring member 5c and the main body sleeve 3 are arranged with the wall 29 in between, and the ring member 5c is screwed into the main body sleeve 3, thereby fixing the ring member 5c to the main body sleeve 3. At this time, since it is necessary to screw in the ring member 5c while expanding the first water-stopping member 7 radially outward (see FIG. 8), the screwing resistance of the ring member 5c is large.

[0082] In contrast, protrusions 6 are provided intermittently in the circumferential direction near the outer edge on the back side of the second flange portion 21. The protrusions 6 function as finger hooks when screwing in the ring member 5c, making it easier to screw in the ring member 5c. However, even with the protrusions 6, resistance is high, and it may be difficult to screw in the ring member 5c by hand.

[0083] In this case, as shown in Fig. 16, a tool 38 may be inserted into the groove 37 and the ring member 5c may be rotated using the tool 38. As described above, at least a part of the protrusions 6 has the groove 37 formed in the radial direction of the ring member 5c, so that when rotating the ring member 5c relative to the main body sleeve 3, the tool 38 can be inserted and positioned along the groove 37, thereby making it possible to easily rotate the ring member 5c using the tool 38. For example, by inserting the tip of a screwdriver into the groove 37 from the outside and fitting it therein, and then rotating the ring member 5c by holding the handle of the screwdriver, it becomes possible to rotate the ring member 5c with less force.

[0084] 17(a) is a partial side cross-sectional view showing a wall-penetrating member fixing structure 10b in which a wall-penetrating member 1c is fixed to a wall 29. As described above, in the wall-penetrating member fixing structure 10b, the first water-stopping member 7 can be securely deformed and made to adhere closely to the inner surface of the through hole by fastening the ring member 5c by a set screwing amount. This ensures the desired water-stopping performance. On the other hand, if the ring member 5c is not screwed in enough, the first water-stopping member 7 will not be deformed sufficiently, and the water-stopping performance may be reduced.

[0085] Fig. 17(b) is an enlarged view of part E in Fig. 17(a). In the wall-penetrating member fixing structure 10b, when the ring member 5c is screwed in, the tip of the main body 11 of the main body sleeve 3 becomes visible from the groove 37. That is, when the end of the main body 11 (part G in the figure) is located on the back side (left side in the figure) of the ring member 5c rather than the bottom part (part F in the figure) of the groove 37, the tip of the main body 11 becomes visible in the groove 37 of the protruding part 6 when viewed from the side. In this way, by rotating the ring member 5c until the tip of the main body 11 becomes visible in the groove 37 of the protruding part 6, the ring member 5c can be screwed into the main body sleeve 3 by the required screwing amount.

[0086] On the other hand, as shown in FIG. 17(c), when the end of the main body 11 (part G in the figure) is located on the front side (right side in the figure) of the ring member 5c, the tip of the main body 11 cannot be seen in the groove 37 of the protruding part 6 when viewed from the side. Therefore, it is possible to know that the screwing amount of the ring member 5c is insufficient. In the embodiment of FIG. 17, the front side (the surface side facing the main body sleeve 3) of the second flange part 21 protrudes to the front side in the part where the groove 37 is formed. It is preferable that the protrusion amount to the front side is smaller than the protrusion amount to the front side of the protrusion 35 by 2 mm or more. In this way, it is possible to prevent water that has flowed down the wall part 29 from flowing into the groove 37.

[0087] FIG. 18 is a cross-sectional view of the wall-penetrating member fixing structure 10b, taken along a cut surface near the protrusion 35. As described above, a space is formed between the protrusion 35 and the protruding portion 27. Therefore, the water that flows down the outer surface of the wall portion 29 flows between the protrusions 35 to the outer circumferential surface of the protrusion 27, and flows through the space to the bottom of the ring member 5c and is discharged downward. In addition, since the protrusion 35 and the protruding portion 6 are provided at different positions in the circumferential direction, the water on the outer circumferential surface of the protrusion 35 is prevented from flowing to the outer circumferential surface of the protruding portion 6. Therefore, the water on the wall surface can be prevented from flowing to the opening side at the tip of the tube portion 39. 19 is a cross-sectional view of the wall-penetrating member fixing structure 10b, taken near the protrusion 6. As described above, a space is formed between the protrusion 6 and the tubular portion 39. Therefore, even if water flows from the projections 35 onto the outer circumferential surface of the protrusion 6, the water flows between the protrusions 6 onto the outer circumferential surface of the tubular portion 39, and then flows through the space downward to the ring member 5c and is discharged downward. In particular, since no projections 35 are formed near the protrusion 6 having the groove 37, it is possible to prevent the water on the wall surface from penetrating into the inside of the tubular portion 39.

[0088] According to the fourth embodiment, the same effect as the third embodiment can be obtained. In addition, by forming a space between the inner peripheral surface of the convex portion 6 and the outer peripheral surface of the tube portion 39, water attached to the outer peripheral surface of the convex portion 6 can be discharged downward by using the space, and the intrusion of water into the inside of the tube portion 39 can be suppressed. In addition, by providing a groove 37 on a part of the convex portion 6, the ring member 5c can be easily rotated by using a tool 38. In addition, since the groove 37 allows the amount of screwing of the ring member 5c to be grasped, the variation due to the worker can be suppressed, and the water stop performance can be reliably ensured.

[0089] Although the embodiment of the present invention has been described above with reference to the attached drawings, the technical scope of the present invention is not limited to the above-described embodiment. It is clear that a person skilled in the art can think of various modifications or alterations within the scope of the technical ideas described in the claims, and it is understood that these also naturally belong to the technical scope of the present invention.

[0090] For example, it goes without saying that the configurations shown in the respective embodiments can be combined with each other. [Explanation of symbols]

[0091] 1, 1a, 1b, 1c...wall-penetrating members 3....Main sleeve 5, 5a, 5b, 5c...Ring members 6………Convex part 7...First water-stopping member 9: Second water-stopping member 10, 10a, 10b... Wall-penetrating member fixing structure 11...Main body 13...First flange portion 15……groove 17………Male thread 19……… Female thread section 21...Second flange portion 23………Double-sided tape 25...Water-stopping member fixing part 25a……Slope part 27………Protrusion 29………Wall part 31………Through-hole 33………Inclined surface 35………Projection 37………Groove 38………Tool 39………Cylindrical part

Claims

1. A wall-penetrating member fixed to a through hole in a wall, a main body sleeve having a cylindrical main body, a first flange portion disposed on one end side of the main body and protruding in a radial direction, a water-stopping member fixing portion provided on an outer periphery of the main body and to which a first water-stopping member is fixed, and a male thread portion formed from the water-stopping member fixing portion toward the other end side of the main body; a ring member having a second flange portion protruding in an outer diameter direction, a protrusion protruding forward of the second flange portion, and a female thread portion formed on an inner surface of the protrusion and capable of being screwed into the male thread portion; Equipped with the water-stopping member fixing portion has an inclined portion whose outer diameter decreases from the first flange portion side toward the male thread portion side, and the first water-stopping member is fixed along the inclined portion, A wall-penetrating member characterized in that, when the ring member is rotated relative to the main sleeve, the first water-stopping member is pressed by the protrusion of the ring member, causing the first water-stopping member to deform along the inclined portion.

2. the protrusion has an inclined surface whose outer diameter decreases from the second flange portion side toward the tip side of the protrusion, A wall-penetrating member as described in claim 1, characterized in that when the ring member is rotated relative to the main sleeve, the protrusion is caused to bite into the inner side of the first water-stopping member, thereby deforming the first water-stopping member toward the outer periphery.

3. 2. The wall-penetrating member according to claim 1, wherein a double-sided tape is provided on a rear surface of the first flange portion.

4. 2. The wall-penetrating member according to claim 1, wherein a groove is formed in a circumferential direction on a back surface of the first flange portion, and a second water-stopping member is disposed in the groove.

5. The wall-penetrating member according to claim 1, characterized in that protrusions are provided intermittently in the circumferential direction on the front side of the second flange portion near the outer edge of the second flange portion, and a space is formed between the protrusions and the protruding portion.

6. The wall-penetrating member according to claim 5, characterized in that convex portions are intermittently provided in the circumferential direction on the back side of the second flange portion near the outer edge of the second flange portion, and the convex portions and the protrusions are arranged at different positions in the circumferential direction on either side of the second flange portion.

7. The wall-penetrating member according to claim 6, characterized in that a cylindrical tubular portion is provided on the back side of the second flange portion near the center of the second flange portion, and a space is formed between the convex portion and the tubular portion.

8. 7. The wall-penetrating member according to claim 6, wherein at least a portion of the protrusions is formed with a groove in a radial direction of the ring member.

9. 9. A wall-penetrating member according to claim 8, characterized in that it has a convex portion having the groove and a convex portion not having the groove, and the protrusion is positioned so that the circumferential distance between the convex portion having the groove and the protrusion is relatively longer than the circumferential distance between the convex portion not having the groove and the protrusion.

10. A fixing structure for a wall-penetrating member according to any one of claims 1 to 9, in which the wall-penetrating member is fixed to a through hole in a wall, An outer diameter of the first flange portion and the second flange portion is larger than an inner diameter of the through hole, a maximum outer diameter of the inclined portion and an outer diameter of the protrusion are smaller than an inner diameter of the through hole, a maximum outer diameter of the first water-stopping member in a state fixed to the water-stopping member fixing portion is larger than the through hole, The main body of the main body sleeve is inserted from the indoor side of the wall portion, and a part of the first water-stopping member is deformed and inserted into the through hole, A fixing structure for a wall-penetrating member, characterized in that the wall portion is sandwiched between the first flange portion and the second flange portion, and the first water-stopping member pressed by the protrusion deforms along the inclined portion and is pressed against the inner surface of the through hole.

11. A method for fixing a wall-penetrating member to a through hole in a wall using the wall-penetrating member according to any one of claims 1 to 9, comprising the steps of: An outer diameter of the first flange portion and the second flange portion is larger than an inner diameter of the through hole, a maximum outer diameter of the inclined portion and an outer diameter of the protrusion are smaller than an inner diameter of the through hole, a maximum outer diameter of the first water-stopping member in a state fixed to the water-stopping member fixing portion is larger than the through hole, A method for fixing a wall-penetrating member, characterized in that while deforming a portion of the first water-stopping member, the main body of the main body sleeve is inserted from the indoor side of the wall portion, the ring member is rotated relative to the main body sleeve from the outer surface side of the wall portion, and the first water-stopping member is pressed by the protrusion to deform it along the inclined portion and press it against the inner surface of the through hole, while sandwiching the wall portion between the first flange portion and the second flange portion.

12. A convex portion is provided intermittently in a circumferential direction on a back surface side of the second flange portion and in the vicinity of an outer edge portion of the second flange portion, At least a portion of the protrusions has a groove formed therein in a radial direction of the ring member, When rotating the ring member relative to the main sleeve, a tool is inserted into the groove provided in the protrusion, and the ring member is rotated using the tool.

12. The method for fixing a wall-penetrating member according to claim 11, further comprising rotating the ring member until the tip of the main body can be seen in the groove of the protrusion when viewed from the side.

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