Attachment to a pipe and flanged sleeve

Abstract

To provide a mounting body to a pipe material constituting a sleeve whose length can be freely adjusted.SOLUTION: The attachment body 2 includes a hollow cylindrical main body tube 4 and a plate-shaped flange portion 5 protruding outward from the main body tube 4. The main body cylinder 4 constitutes a double cylinder state with the pipe material 1 as an inner cylinder. The mounting body 2 is provided with a cut part 6. The cut part 6 comprises a first cut part side 6a extending along the axial direction of the main body cylinder 4 and cutting the peripheral wall of the main body cylinder 4, and a second cut part side 6a extending from the first cut part side 6b along the projecting direction of the flange part 5 and cutting the flange part 5. By opening the split portion 6, the pipe material 1 can be disposed inside the main body tube 4 from the opened opening. A cut portion 6b is formed on a side of the flange portion 5 opposite to the side where the second split portion 5a is present.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sleeve used for ventilation or for passing wiring or piping materials, and to an attachment body constituting the sleeve. [Background technology]

[0002] Conventionally, there have been wall-penetrating sleeves that can be attached by penetrating, for example, the exterior wall of a building (see, for example, Patent Document 1). As shown in FIG. 9, this wall-penetrating sleeve 21 is composed of an outer tube 22 having a flange 22a and an inner tube 23. By sliding the inner tube 23 relative to the outer tube 22, the extension length of the inner tube 23 from one end of the outer tube 22 can be changed, thereby adjusting the length of the wall-penetrating sleeve 21. Here, an engagement means is provided between the outer tube 22 and the inner tube 23. This engagement means consists of an engaging protrusion 22b provided on the outer tube 22 and an engaged recess 23a provided on the inner tube 23. A plurality of engaged recesses 23a are arranged in the axial direction, and the engaging protrusion 22b engages with one of the plurality of engaged recesses 23a, 23a, thereby maintaining the adjusted length of the wall-penetrating sleeve 21. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-127321 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional wall-penetrating sleeve 21, there is a limit to the length that can be adjusted, and it has not been possible to obtain a longer sleeve.

[0005] The present invention has been made to solve the above-mentioned drawbacks of the conventional art, and its object is to provide an attachment body for a pipe material that constitutes a sleeve whose length can be freely adjusted, and a flanged sleeve whose length can be freely adjusted. [Means for solving the problem]

[0006] In order to achieve the above object, the mounting body for a pipe material and the flanged sleeve according to the present invention have the following configuration: The invention of claim 1 provides a fitting for a pipe material, comprising a hollow cylindrical main body tube, which forms a double-cylinder structure with the hollow cylindrical pipe material as the inner tube, and a plate-like flange portion that surrounds the main body tube and extends outward from the main body tube. The fitting is provided with a slit, which comprises a first slit extending along the axial direction of the main body tube and slitting the peripheral wall of the main body tube, and a second slit extending from the first slit along the extending direction of the flange portion and slitting the flange portion. By opening the slit, the pipe material can be placed inside the main body tube through the opened opening. A notch is formed in the flange portion on the side opposite to the second slit, cutting from the edge of the flange portion.

[0007] According to this attachment to a pipe material, the main tube is provided with a flange portion, and the main tube forms a double-tubular body with the pipe material that serves as the inner tube. In this way, the main tube (attachment body) with the flange portion and a standard pipe material form a double-tubular structure. By cutting the pipe material to an appropriate length, the length of the flanged sleeve formed by the attachment body and the pipe material can be freely adjusted. The attachment body also has a slit portion that can be opened to allow the pipe material to be placed inside the main tube through the open opening. This slit portion allows the main tube to be placed directly midway along the pipe material, which is easier than fitting the main tube from the end of the pipe material and then moving it. In particular, when adhesively fixing the two together, this prevents adhesive from adhering between the end of the pipe material and the main tube, which would occur if the main tube were moved to the bonding position. In addition, a notch is formed in the flange on the side opposite to the second slit. This notch absorbs distortion of the flange that occurs when the outer diameter of the inner tube pipe is slightly larger and the opened slit cannot be returned to its original position, making it possible to keep the flange undistorted or with minimal distortion.

[0008] The pipe mount according to claim 2 is the pipe mount according to claim 1, further comprising a drain wall protruding from one surface of the flange, the drain wall comprising a first drain wall surrounding the interior space of the main tube, and a pair of second drain walls extending from the first drain wall along the second slit on both sides of the second slit in the direction of protrusion of the flange. By providing the drain wall on one surface of the flange, rainwater can be blocked and prevented from seeping in through the slit.

[0009] The pipe mount according to claim 3 is the pipe mount according to claim 2, wherein the main tube protrudes on both sides of the flange in its thickness direction, and the protruding portion of the main tube serves as the first drain wall. The second drain wall extends along the second slit to the protruding edge of the flange.

[0010] The pipe mounting body according to claim 4 is the pipe mounting body according to claim 2, wherein the opposing surfaces of the pair of second drain walls are positioned on the same plane as the opposing surfaces of the second slit. When bonding to close the slit, a wide bonding surface can be secured, including the opposing surfaces of the pair of second drain walls.

[0011] The pipe fitting according to claim 5 is a pipe fitting according to any one of claims 1 to 4, wherein the flange portion is formed in a rectangular shape having four straight portions on its outer periphery, and the second slit portion is formed at a longitudinal midpoint of one of the four straight portions, and the notch portion is formed at a longitudinal midpoint of the straight portion opposite the one straight portion.

[0012] A flanged sleeve according to the invention of claim 6 comprises a hollow tubular tube and an attachment body. The attachment body includes a hollow tubular main body tube, with the tubular tube serving as the inner tube and forming a double-cylinder structure, and a plate-like flange portion having a thickness thinner than the axial length of the main body tube and extending outward from a position spaced from the tip of at least one end of the main body tube to surround the main body tube. The attachment body is provided with a slit, which includes a first slit extending along the axial direction of the main body tube and slitting the peripheral wall of the main body tube, and a second slit extending from the first slit along the extending direction of the flange portion and slitting the flange portion. By opening the slit, the tubular tube can be placed inside the main body tube through the open opening. A notch is formed on the flange portion on the side opposite to the second slit, extending from the edge of the flange portion. Furthermore, with one end of the pipe material protruding from the one end of the main body tube, adhesive tape is wrapped across the outer surface of the one end of the main body tube and the outer surface of the pipe material, thereby integrating the mounting body and the pipe material.

[0013] According to this flanged sleeve, the main tube is provided with a flange, which forms a double-tubular body with the pipe material that serves as the inner tube. Because the main tube (attachment body) with the flange and a standard pipe material form a double-tubular structure, the length of the flanged sleeve formed by the attachment body and the pipe material can be freely adjusted by cutting the pipe material to an appropriate length. The attachment body also has a slit that can be opened to allow the pipe material to be placed inside the main tube through the open opening. This slit allows the main tube to be placed directly at a midpoint on the pipe material, which is easier than fitting the main tube from the end of the pipe material and moving it. The flange also has a notch formed on the side opposite the second slit on the flange. This notch absorbs distortion of the flange that occurs when the outer diameter of the pipe material that serves as the inner tube is slightly larger and the opened slit cannot be returned to its original position, allowing the flange material to be kept distortion-free or with minimal distortion. [Effects of the Invention]

[0014] The flanged sleeve and the fitting for pipes according to the present invention allow the length of the flanged sleeve to be freely adjusted by combining the flanged main body (fitting) with a standard pipe. Furthermore, by providing a slit in the fitting and a notch in the flange, it is possible to accommodate slight differences in the outer diameter of the pipe. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view of a flanged sleeve according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6]5 is a cross-sectional view taken along line AA in FIG. 4. [Figure 7] This is also a cross-sectional view of the first stage in which the flanged sleeve is installed on the wall. [Figure 8] This is also a cross-sectional view of the second stage in which the flanged sleeve is installed on the wall. [Figure 9] FIG. 1 is a cross-sectional view showing a conventional wall-penetrating sleeve. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0017] 1 to 8 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a hollow cylindrical pipe material, 2 denotes a mounting body, and 3 denotes a flanged sleeve.

[0018] The mounting body 2 includes a hollow cylindrical main body 4 that forms a double-cylinder structure with the pipe 1 as the inner cylinder, and a plate-like flange 5 that surrounds the main body 4 and projects outward from the main body 4. That is, the flange 5 is plate-shaped and thinner than the axial length (length in the axial direction) of the main body 4, and projects outward from a position spaced apart from the tip of at least one end 4a of the main body 4, surrounding the main body 4. The mounting body 2 is provided with a slit 6, which includes a first slit 6a that extends along the axial direction of the main body 4 and cuts through the peripheral wall of the main body 4, and a second slit 6b that extends from the first slit 6a along the projecting direction of the flange 5 and cuts through the flange 5. By opening the slit 6, the pipe 1 can be placed inside the main body 4 through the open opening. A notch 5a is formed by cutting into the edge of the flange 5 on the side opposite to the side where the second cutout 6b is located.

[0019] A drain wall 7 is provided so as to protrude from one surface 5b of the flange portion 5. This drain wall 7 includes a first drain wall 7a that surrounds the inner space of the main body tube 4, and a pair of second drain walls 7b, 7b that are continuous with the first drain wall 7a and extend in the protruding direction of the flange portion 5 along the second cutout 6b on both sides of the second cutout 6b.

[0020] More specifically, the main body tube 4 is provided so as to protrude on both sides of the flange portion 5 in its thickness direction. The portion of the main body tube 4 protruding on one side serves as the first drain wall 7a. The second drain wall 7b extends along the second cutout 6b to the protruding edge of the flange portion 5. The opposing surfaces M1, M1 of the pair of second drain walls 7b, 7b are located on the same plane as the opposing surfaces M2, M2 of the second cutout 6b (see FIG. 6).

[0021] The flanged sleeve 3 comprises the pipe material 1 and the mounting body 2. With one end 1a of the pipe material 1 protruding from one end 4a of the main tube 4, adhesive tape (not shown) is wrapped around the outer circumferential surface of one end 4a of the main tube 4 and the outer circumferential surface of the pipe material 1, thereby integrating the mounting body 2 and the pipe material 1.

[0022] Specifically, the pipe material 1 is made of, for example, synthetic resin, and has a uniform cross section, a cylindrical shape, and smooth inner and outer surfaces.

[0023] The mounting body 2 is made of, for example, synthetic resin. The main body tube 4 of this mounting body 2 has a constant cross section and is cylindrical. In order to obtain a drainage gradient for the pipe material 1, the axis of the pipe material 1 (and therefore the axis of the main body tube 4) and the flange portion 5 of the mounting body 2 are inclined and not perpendicular to each other. The flange portion 5 of this mounting body 2 is formed in a rectangular shape with four straight portions 5c, 5c on its outer periphery. The second cutout portion 6b is formed at a midpoint in the length direction of one of the four straight portions 5c, 5c (at the center position in the illustrated embodiment). The cutout portion 5a is formed at a midpoint in the length direction of the straight portion 5c opposite to the one straight portion 5c (at the center position in the illustrated embodiment).

[0024] Furthermore, the main body tube 4 has an axial length (length in the axial direction) longer than the plate thickness of the flange portion 5, and protrudes from the other surface 5d of the flange portion opposite the one surface 5b. In the illustrated embodiment, the main body tube 4 protrudes from both the front and back sides of the flange portion 5. In other words, the flange portion 5 is formed in the middle part of the main body tube 4 in the axial direction. The part of the main body tube 4 protruding from the one surface 5b of the flange portion 5 also serves as the first drain wall 7a.

[0025] Furthermore, the flange portion 5 is rectangular, and one side surface 5b (front surface), in particular the edge portion of the flange portion 5, is configured as a flat surface so that waterproof tape can be applied across one side surface 5b (front surface) of the flange portion 5 and the front surface of the structure with the other side surface 5d (back surface) of the flange portion 5 facing the front surface of the structure. In particular, it is desirable to arrange a pair of parallel rectangular straight line portions 5c, 5c of the flange portion 5 so that the waterproof tape is applied to the pair of vertically arranged straight line portions 5c, 5c and the upper straight line portion 5c of the pair of horizontal straight line portions 5c, 5c, and the edge portions of the flange portion 5 on the side of these three straight line portions 5c, 5c (i.e., the three excluding the lower straight line portion 5c) are configured as flat surfaces.

[0026] Furthermore, the flange portion 5 has a fixing portion 5e (a concave fixing portion in the illustrated embodiment) through which a fastener such as a screw or nail that is screwed or driven into the structure passes when the other surface 5d (back surface) of the flange portion 5 is placed against the front surface of the structure, and the flanged sleeve 3 can be fixed to the structure by the fixing portion 5e. As another fixing method, one surface 5b (front surface) of the flange portion 5, particularly the edge portion of the flange portion 5, is configured as a flat surface so that the other surface 5d (back surface) of the flange portion 5 can be fixed to the front surface of the structure with adhesive tape that spans the one surface 5b (front surface) of the flange portion 5 and the front surface of the structure. Here, this adhesive tape can be used in combination with the waterproof tape described above.

[0027] 7 and 8 show the flanged sleeve 3 installed on a wall 15. The wall 15 is composed of an outer wall 16 and an inner wall 17 (corresponding to the structure described above), and the inner wall 17 has an outer first wall 17a and an inner second wall 17b. A through hole 15a is formed in the wall 15, and this through hole 15a has an outer wall hole 16a in the outer wall 16 and an inner wall hole 17c in the inner wall 17. As shown in FIG. 7, the flanged sleeve 3 is attached to the inner wall 17, and before or after this, one end 1a of the pipe 1 is cut off and removed from the flanged sleeve 3 to obtain an appropriate length. During this installation, the pipe 1 and main tube 4 are inserted into the inner wall hole 17c from the outside of the inner wall 17, and the other surface 5d (back surface) of the flange 5 is positioned against the outer surface 17d (front surface) of the inner wall 17, which is the structure. At this time, the slit 6 and the second drip wall 7b are positioned downward. The flanged sleeve 3 is then attached and fixed to the inner wall 17 using fasteners such as screws or nails that penetrate the flange 5 and are screwed or driven into the inner wall 17 (specifically, the first wall 17a). Then, as shown in FIG. 8, the outer wall 16 is installed, and the inside of the pipe 1 faces the outside of the wall 15 (specifically, the outer wall 16) through the outer wall hole 16a. A hood 18 is attached to the outer wall 16 at the position of the outer wall hole 16a so that a portion of it is inserted into the pipe 1, and a ventilation fan (not shown) is installed at the back of the pipe 1.

[0028] Next, the effects of the mounting body 2 configured as described above and the flanged sleeve 3 equipped with the mounting body 2 will be described. In the mounting body 2, the main tube 4 is provided with a flange portion 5, and the main tube 4 forms a double-tube body together with the pipe material 1, which serves as the inner tube. In this way, the main tube 4 (mounting body 2) provided with the flange portion 5 and a general (general-purpose) pipe material 1 form a double-tube structure. Therefore, by cutting the pipe material 1 to an appropriate length, the length of the flanged sleeve 3 formed by the mounting body 2 and the pipe material 1 can be freely adjusted. In addition, the mounting body 2 is provided with a slit portion 6, which can be opened to allow the pipe material 1 to be placed inside the main tube 4 through the opened opening. This slit portion 6 allows the main tube 4 to be placed directly at a midpoint of the pipe material 1, which is easier than fitting the main tube 4 from the end of the pipe material 1 and moving it. In particular, when adhesively fixing the two together, when the main tube 4 (mounting body 2) is moved from the end of the pipe 1 to the bonding position, adhesive will adhere to the tube. However, by placing the main tube 4 (mounting body 2) directly in the middle of the pipe 1, this does not happen. Furthermore, a notch 5a is formed in the flange 5 on the side opposite the second slit 6b. This notch 5a absorbs distortion of the flange 5 that occurs when the outer diameter of the pipe 1 serving as the inner tube is slightly larger and the opened slit 6 cannot be returned to its original position, thereby keeping the flange 5 in a state where it is not distorted or has minimal distortion. Therefore, when the flange 5 (more specifically, the other surface 5d (back surface) of the flange 5) is placed against the outer surface 17d (front surface) of the inner wall 17 (structure), it can be stabilized with no gap between the flange 5 and the inner wall 17 (structure).

[0029] That is, with this mounting body 2 and flanged sleeve 3, the length of the flanged sleeve 3 can be freely adjusted by combining the main tube 4 (mounting body 2) provided with the flange portion 5 with a general (general-purpose) pipe material 1. Furthermore, by providing a slit portion 6 in the mounting body 2 and a notch portion 5a in the flange portion 5, it is possible to accommodate slight differences in the outer diameter of the pipe material 1.

[0030] Furthermore, by providing the drain walls 7 (first drain wall 7a, second drain wall 7b) on one surface 5b (front surface) of the flange portion 5, rainwater can be blocked and prevented from seeping in through the slit 6. Furthermore, by positioning the second drain wall 7b on the lower side of the flange portion 5 (that is, by positioning the slit 6 on the lower side), the second drain wall 7b does not get in the way when applying waterproof tape (adhesive tape) to the top and left and right positions across the flange portion 5 and the inner wall 17 (structure) to which the flange portion 5 (more specifically, the other surface 5d (rear surface) of the flange portion 5) is attached.

[0031] Furthermore, the opposing surfaces M1, M1 of the pair of second drain walls 7b, 7b are located on the same plane as the opposing surfaces M2, M2 of the second slit 6b, which ensures a wide bonding surface when bonding to close the slit 6, including the opposing surfaces M1, M1 of the pair of second drain walls 7b, 7b.

[0032] The present invention is not limited to the above-described embodiment, and various other modifications are possible. For example, the first drain wall 7a is formed by the peripheral wall of the main body tube 4 protruding from one surface 5b of the flange portion 5. However, the first drain wall 7a may be formed around the outside of the main body tube 4 protruding from one surface 5b of the flange portion 5, separately from the main body tube 4 protruding from one surface 5b of the flange portion 5. Alternatively, the first drain wall 7a may be formed independently of the main body tube 4 without protruding from one surface 5b of the flange portion 5. Furthermore, the second drain wall 7b extends to the edge of the flange portion 5, but may extend just before reaching the edge (particularly, just before reaching the edge at a position outside the inner wall hole 17c (wall hole)).

[0033] In addition, the mounting body 2 and the pipe material 1 are integrated (fixed) together by adhesive tape that spans the main tube 4 and the pipe material 1, but they may also be integrated (fixed) together by adhesive, or they may be integrated (fixed) together by both.

[0034] Furthermore, the axis of the pipe 1 (that is, the axis of the main cylinder 4) and the flange portion 5 of the attachment body 2 are inclined and not perpendicular to each other, but may be perpendicular to each other. [Explanation of symbols]

[0035] 1 Tube material 1a (one end of pipe material 1) 2 Mounting body 3 flanged sleeve 4 Main body tube 4a (One end of the main body tube 4) 5 Flange 5a Notch 5b One side 5c Straight section 6 Cut section 6a 1st cut 6b 2nd cut section 7. Water drainage wall 7a First water cut wall 7b Second drainage wall M1 (of the second drainage wall 7b) facing surface M2 (of the second cutout portion 6b) opposing surface

Claims

1. A mounting body comprising a hollow cylindrical main body tube, which forms a double-cylinder state with a hollow cylindrical pipe material as an inner tube, and a plate-like flange portion which surrounds the main body tube and protrudes outward from the main body tube, a slit is provided, the slit comprising a first slit extending along the axial direction of the main body tube and slitting the peripheral wall of the main body tube, and a second slit extending from the first slit along the protruding direction of the flange portion and slitting the flange portion, and by opening the slit, the pipe material can be placed inside the main body tube through the opened opening; An attachment to a pipe material, wherein a notch is formed in the flange portion on the side opposite to the side where the second slit is located, the notch being cut from the edge of the flange portion.

2. 2. An attachment to a pipe material as described in claim 1, wherein a drain wall is provided protruding from one side surface of the flange portion, and this drain wall comprises a first drain wall surrounding the inner space of the main tube, and a pair of second drain walls extending from the first drain wall on both sides of the second cutout portion and along the second cutout portion in the protruding direction of the flange portion.

3. The main body tube is provided so as to protrude on both sides of the flange portion in its thickness direction, and the portion of the main body tube protruding on one side serves as the first drain wall, 3. The pipe mounting assembly according to claim 2, wherein the second drain wall extends along the second slit to the projecting edge of the flange.

4. 3. The pipe mounting assembly according to claim 2, wherein opposing surfaces of the pair of second drain walls are positioned on the same plane as opposing surfaces of the second slit portion.

5. The flange portion is formed in a rectangular shape having four linear portions on its outer periphery, 5. An attachment to a pipe material as described in any one of claims 1 to 4, wherein the second cutout portion is formed at a midpoint in the length direction of one of the four straight sections, and the cutout portion is formed at a midpoint in the length direction of the straight section opposite the one straight section.

6. A hollow cylindrical pipe member and a mounting body are provided. The mounting body includes a hollow cylindrical main body tube, with the pipe material as an inner tube and forming a double-cylinder state with the pipe material, and a plate-like flange portion having a thickness thinner than the axial length of the main body tube, which flange portion extends outward from a position spaced apart from the tip of at least one end of the main body tube so as to surround the main body tube, The mounting body is provided with a slit, which comprises a first slit extending along the axial direction of the main body tube and slitting the peripheral wall of the main body tube, and a second slit extending from the first slit along the protruding direction of the flange portion and slitting the flange portion, and by opening the slit, the pipe can be placed inside the main body tube through the opened opening; a notch cut from an edge of the flange portion on the side opposite to the side where the second cut portion is located; A flanged sleeve in which one end of the pipe material protrudes from the one end of the main tube, and adhesive tape is wrapped across the outer surface of the one end of the main tube and the outer surface of the pipe material, thereby integrating the mounting body and the pipe material.

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