Sleeve

Abstract

To provide a sleeve with good appearance when constructed.SOLUTION: A sleeve 2 has a hollow cylindrical part 2a through which wiring and piping materials can be inserted. The hollow cylindrical part 2a has on its outer surface an inclined cutting guide part 2b and a second cutting guide part 2c that act as guides for cutting the hollow cylindrical part 2a. The inclined cutting guide part 2b is provided on an inclined cross section 2e that intersects with an axial core 2d of the hollow cylindrical part 2a at a predetermined angle. The second cutting guide part 2c is provided on a second cross section 2f that intersects with the axial core 2b of the hollow cylindrical part at a different angle from the inclined cross section 2e.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a sleeve through which wiring and piping materials are passed. [Background technology]

[0002] Conventionally, when passing piping through a wall separating the indoors and outdoors in an air conditioning system, a through-hole is drilled in the wall and a piping sleeve is inserted into the through-hole (see, for example, Patent Document 1). As shown in Fig. 19, this piping sleeve 11 includes a cylindrical sleeve body 12 and a flange member 13 attached to the end of the sleeve body 12. A plurality of cutting-assist grooves 12a, 12a are formed on the outer circumferential surface of the sleeve body 12 so as to be aligned at predetermined intervals in the longitudinal direction of the sleeve body 12. To adjust the length to fit the through-hole in the wall, the sleeve body 12 is cut along the cutting-assist grooves 12a and the end portions are removed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2014-25577 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional piping sleeve 11, the cutting-assist groove 12a was formed perpendicular to the axis of the sleeve body 12. Therefore, when the sleeve body 12 was cut along the cutting-assist groove 12a during construction to adjust the length, the end face of the sleeve body 12, which was inclined to obtain a water gradient, protruding from the wall, became inclined relative to the wall surface, which looked unattractive.

[0005] The present invention has been made to solve the above-mentioned drawbacks of the conventional art, and its object is to provide a sleeve that looks good when installed. [Means for solving the problem]

[0006] In order to achieve the above object, the sleeve according to the present invention has the following configuration: The sleeve according to the invention recited in claim 1 is a sleeve through which wiring and piping material can be passed, and includes a hollow tubular portion through which the wiring and piping material can be inserted. The hollow tubular portion has an inclined cutting guide portion and a second cutting guide portion on its outer surface, which serve as guides for cutting the hollow tubular portion. The inclined cutting guide portion is provided on an inclined cross section that intersects with the axis of the hollow tubular portion at a predetermined angle. The second cutting guide portion is provided on a second cross section that intersects with the axis of the hollow tubular portion at a different angle from the inclined cross section.

[0007] According to this sleeve, the hollow tubular portion of the sleeve is provided with an inclined cutting guide portion and a second cutting guide portion. Therefore, when inserting the hollow tubular portion of the sleeve into a through hole formed in a wall, either the inclined cutting guide portion or the second cutting guide portion is selected depending on the inclination angle of the through hole, and the hollow tubular portion is cut in accordance with the selected cutting guide portion, so that the end face of the hollow tubular portion formed by the cut surface can be aligned with the wall surface or can be aligned as closely as possible to the wall surface.

[0008] The sleeve according to claim 2 is the sleeve according to claim 1, wherein the second cross section is perpendicular to the axis of the hollow tubular portion. As a result, when a through hole formed in a wall is perpendicular to the wall surface, by cutting the hollow tubular portion at the second cutting guide portion on the second cross section, the end face of the hollow tubular portion formed by the cut surface can be aligned with the wall surface.

[0009] A sleeve according to a third aspect of the invention is the sleeve according to the second aspect, wherein the inclined cutting guide portion and the second cutting guide portion are provided so as not to intersect with each other.

[0010] The sleeve according to claim 4 is the sleeve according to any one of claims 1 to 3, wherein the inclined cutting guide portion and the second cutting guide portion are formed as grooves recessed into the outer surface of the hollow tubular portion, and are formed to have different groove widths and / or groove depths, making it easier to distinguish between the inclined cutting guide portion and the second cutting guide portion.

[0011] The sleeve according to claim 5 is the sleeve according to any one of claims 1 to 3, wherein a flange is provided on one end of the hollow cylindrical portion and protrudes outward, and the flange's protruding direction is changeable with respect to the axis of the hollow cylindrical portion. Thus, when the hollow cylindrical portion of this sleeve is inserted into a through hole in a wall, if the through hole is inclined, the protruding direction of the flange can be changed to make the back surface of the flange follow the wall surface, or to align it as closely as possible with the wall surface.

[0012] The sleeve according to claim 6 is a sleeve that is inserted into a through hole formed in a wall to allow wiring or piping material to pass through. It includes a flange member having an outwardly extending flange that can be hooked onto the periphery of the wall surface of the through hole, and an adjustable cylinder that can be inserted into the through hole to allow the wiring or piping material to pass through. The adjustable cylinder has an inclined cutting guide portion on its outer circumferential surface that serves as a guide for cutting the adjustable cylinder. The inclined cutting guide portion is provided on an inclined cross section that intersects with the axis of the adjustable cylinder at a predetermined angle. A plurality of the inclined cutting guide portions are provided, and a group of inclined cutting guide portions are arranged parallel to the axis of the adjustable cylinder to form an inclined cutting guide. The overall length of the adjustable cylinder can be adjusted by selecting one of the inclined cutting guide portions and cutting off one end of the adjustable cylinder. In addition, the flange member has a connection portion that is connected to the flange portion and to the other end side of the adjustment cylinder, and this connection portion allows the flange member and the adjustment cylinder to be connected in a state where the axial direction of the flange member and the axial direction of the adjustment cylinder are offset from each other.

[0013] According to this sleeve, the sleeve includes a flange member and an adjustable cylinder inserted into the through hole. The flange member has a flange portion that protrudes outward so as to be hooked onto the periphery of the front wall side of the through hole formed in the wall. The flange member and the adjustable cylinder can be connected with the axial direction of the flange member and the axial direction of the adjustable cylinder offset from each other. Therefore, when the through hole is inclined, by connecting the flange member and the adjustable cylinder with the axial direction of the flange member and the axial direction of the adjustable cylinder offset from each other, the back surface of the flange portion can be aligned along the front wall surface of the wall, or as close to the wall surface as possible. The adjustable cylinder also has an inclined cutting guide. Therefore, when inserting the adjusting cylinder of this sleeve into a through hole provided in a wall, if the through hole is inclined, the adjusting cylinder can be cut to match the inclined cutting guide portion, so that the end face of the adjusting cylinder formed by the cut surface can be aligned with the wall surface opposite the wall surface on the side of the wall opposite the wall surface, or can be aligned as close to that wall surface as possible.

[0014] The sleeve according to claim 7 is the sleeve according to claim 6, wherein the adjustable cylinder has a second cutting guide portion on its outer circumferential surface that serves as a guide for cutting the adjustable cylinder. The second cutting guide portion is provided on a second cross section that intersects the axis of the adjustable cylinder at a different angle than the inclined cross section. A plurality of second cutting guide portions are provided, and these second cutting guide portions are aligned parallel to the axial direction of the adjustable cylinder within the range of the inclined cutting guide group to form a second cutting guide group. The overall length of the adjustable cylinder can be adjusted by selecting one of the second cutting guide portions and cutting off one end of the adjustable cylinder. Since the adjustable cylinder has the second cutting guide portion in addition to the inclined cutting guide portion, either the inclined cutting guide portion or the second cutting guide portion can be selected as appropriate when cutting the adjustable cylinder.

[0015] The sleeve according to claim 8 is the sleeve according to claim 6 or 7, wherein the flange has an outer shape in which the outer edge of the disk is missing two orthogonal straight lines. The connecting portion is formed in a ring shape. In this state, in which the connecting portion is fitted to the other end of the adjusting cylinder, the relative angle between the axis of the adjusting cylinder and the axis of the flange member can be changed, and the flange member can be rotated around the axis of the flange member relative to the adjusting cylinder within a 360-degree range. This allows the relative angle between the axis of the adjusting cylinder and the axis of the flange member to be adjusted, and by rotating the flange member around its axis, the positions of the two straight lines in the flange portion can be changed.

[0016] The sleeve according to claim 9 is the sleeve according to claim 1, 2, 3 or 7, wherein the inclined cutting guide portion and / or the second cutting guide portion are configured by a continuously extending recess forming an annular shape. This allows the cutting guide portion configured by the continuous recess to serve as a guide for the blade of a cutting tool such as a saw, making it easy to cut the adjustment cylinder. [Effects of the Invention]

[0017] According to the sleeves described in claims 1 to 5, by cutting the hollow cylindrical portion in accordance with the inclined cutting guide portion or the second cutting guide portion, the end face of the hollow cylindrical portion can be made to conform to the wall surface, or to conform as closely to the wall surface as possible, resulting in a good appearance when installed.

[0018] Furthermore, according to the sleeves described in claims 6 to 8, by cutting the adjusting cylinder in accordance with the inclined cutting guide portion, the end face of the adjusting cylinder can be aligned with the wall surface opposite the front side of the wall, or aligned as closely as possible to that wall surface, resulting in a good appearance when installed.

[0019] Furthermore, according to the sleeve described in claim 9, the cutting guide portion formed by the continuous recesses additionally serves as a guide for the blade of a cutting tool such as a saw, making it easy to cut the adjustment cylinder. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 2 is a perspective view of a sleeve according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 6] 3, but showing a sleeve in which the axial direction of the flange member and the axial direction of the adjustment cylinder are misaligned. FIG. [Figure 7] This is also a diagram equivalent to Figure 5. [Figure 8] FIG. 10 is a right side view showing a state in which a sleeve with one end of the adjustment cylinder cut away is placed in a slanted through-hole in the wall. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. [Figure 12] 11 is a cross-sectional view taken along line BB in FIG. [Figure 13] 13 is a cross-sectional view taken along line CC in FIG. 12. [Figure 14] FIG. [Figure 15] FIG. [Figure 16] FIG. [Figure 17] FIG. [Figure 18] 16 is a cross-sectional view taken along line DD in FIG. 15. [Figure 19] FIG. 10 is a side view showing a conventional piping sleeve. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0022] 1 to 18 show one embodiment of the present invention. In the drawings, reference numeral 1 denotes a wall of a building. 1a denotes a through-hole formed in the wall 1. 2 denotes a sleeve through which wiring and piping material (wiring or piping material) is passed.

[0023] The sleeve 2 has a hollow cylindrical portion 2a through which wiring and piping materials can be inserted. The hollow cylindrical portion 2a has an inclined cutting guide portion 2b and a second cutting guide portion 2c on its outer surface, which serve as guides for cutting the hollow cylindrical portion 2a. The inclined cutting guide portion 2b is provided on an inclined cross section 2e that intersects with the axis 2d of the hollow cylindrical portion 2a at a predetermined angle. The second cutting guide portion 2c is provided on a second cross section 2f that intersects with the axis 2d of the hollow cylindrical portion 2a at a different angle from the inclined cross section 2e.

[0024] In addition, the sleeve 2 is provided with a flange 3a that protrudes outward on either end side of the hollow cylindrical portion 2a, and the direction in which the flange 3a protrudes can be changed relative to the axis 2d of the hollow cylindrical portion 2a.

[0025] More specifically, the sleeve 2 is inserted into a through hole 1a formed in the wall 1. The sleeve 2 includes a flange member 3 having a flange 3a that projects outward so as to be hooked onto the periphery of the wall surface 1b of the through hole 1a, and an adjustable cylinder 4 that can be inserted into the through hole 1a to pass wiring and piping material through. The adjustable cylinder 4 constitutes the hollow cylinder 2a. That is, the adjustable cylinder 4 has, on its outer circumferential surface, an inclined cutting guide 2b that serves as a guide for cutting the adjustable cylinder 4, and the inclined cutting guide 2b is provided on an inclined cross section 2e that intersects with the axis 4a of the adjustable cylinder 4 (axis 2d of the hollow cylinder 2a) at a predetermined angle. The adjustment cylinder 4 has a second cutting guide portion 2c on its outer surface that serves as a guide for cutting the adjustment cylinder 4, and the second cutting guide portion 2c is provided on a second cross section 2f that intersects with the axis 4a of the adjustment cylinder 4 (axis 2d of the hollow cylinder portion 2a) at an angle different from that of the inclined cross section 2e, and in the illustrated embodiment, this second cross section 2f is perpendicular to the axis 4a of the adjustment cylinder 4 (axis 2d of the hollow cylinder portion 2a).

[0026] Here, a plurality of oblique cutting guide portions 2b are provided, and these oblique cutting guide portions 2b, 2b are aligned parallel to the axial direction 4b of the adjustment cylinder 4 to form an oblique cutting guide group, and by selecting one of these oblique cutting guide portions 2b, 2b and cutting away one end 4c of the adjustment cylinder 4, the overall length of the adjustment cylinder 4 can be adjusted. Similarly, a plurality of second cutting guide portions 2c are provided, and these second cutting guide portions 2c, 2c are aligned parallel to the axial direction 4b of the adjustment cylinder 4 within the range where the oblique cutting guide group is provided to form a second cutting guide group, and by selecting one of these second cutting guide portions 2c, 2c and cutting away one end 4c of the adjustment cylinder 4, the overall length can be adjusted.

[0027] The flange member 3 has a connecting portion 3b that is connected to the flange portion 3a and to the other end 4d of the adjustment cylinder 4. This connecting portion 3b allows the flange member 3 and the adjustment cylinder 4 to be connected in a state in which the axial direction 3c of the flange member 3 and the axial direction 4b of the adjustment cylinder 4 are misaligned (i.e., the axial center 3e of the flange member 3 and the axial center 4a of the adjustment cylinder 4 are inclined relative to each other). Therefore, as described above, the flange portion 3a can change its protruding direction with respect to the axial center 2d of the hollow cylinder 2a. Furthermore, the flange portion 3a has an outer shape in which the outer edge portion of a disk is cut off by two orthogonal straight portions 3d, 3d. The connection portion 3b is formed in a ring shape, and when the connection portion 3b is fitted into the other end side 4d of the adjustment cylinder 4, the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3 can be changed, and the flange member 3 can be rotated around the axis 3e of the flange member 3 relative to the adjustment cylinder 4 within a range of 360 degrees.

[0028] Specifically, the adjustable cylinder 4 (hollow cylinder portion 2a) is formed in a cylindrical shape. The inclined cutting guide portion 2b and the second cutting guide portion 2c provided on the adjustable cylinder 4 (hollow cylinder portion 2a) are arranged so as not to intersect with each other. Here, "not intersecting with each other" means that the inclined cutting guide portion 2b and the second cutting guide portion 2c themselves do not intersect with each other. This also includes cases where the inclined cross section 2e and the second cross section 2f intersect with each other on the outer peripheral surface of the adjustable cylinder 4 (hollow cylinder portion 2a), but where the inclined cutting guide portion 2b or the second cutting guide portion 2c is provided intermittently, so that the inclined cutting guide portion 2b and the second cutting guide portion 2c do not intersect with each other. In the illustrated embodiment, the inclined cross section 2e and the second cross section 2f do not intersect with each other on the outer peripheral surface of the adjustable cylinder 4 (hollow cylinder portion 2a), and naturally the inclined cutting guide portion 2b and the second cutting guide portion 2c do not intersect with each other.

[0029] The oblique cutting guide portion 2b and the second cutting guide portion 2c are formed as grooves recessed into the outer surface of the adjustment cylinder 4 (hollow cylinder portion 2a), and are formed so that the groove width and / or groove depth (in the illustrated embodiment, the groove width and groove depth) differ from each other. The oblique cutting guide portion 2b and / or the second cutting guide portion 2c (in the illustrated embodiment, the oblique cutting guide portion 2b) are formed as continuously extending, annular recesses. Specifically, the second cutting guide portion 2c, which is the other of the oblique cutting guide portion 2b and the second cutting guide portion 2c, is formed with a wider groove width and a deeper groove depth than the oblique cutting guide portion 2b, which is one of the oblique cutting guide portions 2b and the second cutting guide portion 2c. Furthermore, the oblique cutting guide portion 2b, which is one of the oblique cutting guide portions 2b, extends continuously to form an annular shape, while the second cutting guide portion 2c, which is the other, extends intermittently (in the illustrated embodiment, so as to be divided into four equally spaced locations around the circumference). The inclined cutting guide portions 2b and the second cutting guide portions 2c are arranged alternately in the axial direction 4b of the adjustment cylinder 4, and are provided on the outer peripheral surface from one end side 4c to the center of the adjustment cylinder 4. In the illustrated embodiment, the multiple inclined cutting guide portions 2b, 2b are arranged at equal intervals, and the multiple second cutting guide portions 2c, 2c are also arranged at equal intervals, and further, the pitches at which the inclined cutting guide portions 2b and the second cutting guide portions 2c are arranged at equal intervals are also the same.

[0030] Furthermore, a connected portion 4e to which the connecting portion 3b of the flange member 3 is connected is provided at an end portion on the other end side 4d of the adjustment cylinder 4. This connected portion 4e is formed so that a connected surface 4f (in the illustrated embodiment, the inner peripheral surface) that comes into contact with the connecting portion 3b (more specifically, the connecting surface 3f described below) is a spherically curved surface. Recesses 4g are provided in parts of the connected surface 4f (two places, on the left and right, in the illustrated embodiment), and these recesses 4g make it easy for the connected portion 4e and the connecting portion 3b to deform when they are fitted together to connect, facilitating the fitting.

[0031] Furthermore, the adjustment cylinder 4 (hollow cylinder portion 2a) is provided with a length mark 4h indicating the length of the sleeve 2 after one end of the adjustment cylinder 4 is cut off (see FIG. 4).

[0032] In the flange member 3, the connecting portion 3b is formed in a circular ring shape. This connecting portion 3b is formed so that the connecting surface 3f (in the illustrated embodiment, the outer peripheral surface) that comes into contact with the connected portion 4e (more specifically, the connected surface 4f) is a spherically curved surface, similar to the connected surface 4f. That is, in the illustrated embodiment, the connecting portion 3b of the flange member 3 fits inside the connected portion 4e of the adjustment cylinder 4. The contact between the respective spherically curved surfaces makes it possible to change the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3, and also makes it possible for the flange member 3 to rotate 360 ​​degrees around the axis 3e of the flange member 3 relative to the adjustment cylinder 4.

[0033] The flange 3a extends in a direction perpendicular to the axis 3e of the flange member 3. As described above, the flange 3a has an outer shape in which the outer edge of a disk (more specifically, a disk centered on the axis 3e of the flange member 3) is cut off by two orthogonal straight line portions 3d, 3d. A cutting guide groove 3g is provided on the flange 3a (more specifically, on the back surface of the flange 3a) on the side opposite to the side where one of the two straight line portions 3d, 3d is located. If necessary, the outside of the cutting guide groove 3g can be removed by cutting along the cutting guide groove 3g. The flange 3a also has a plurality of guide holes 3h (non-through guide holes 3h in the illustrated embodiment) for guiding screws used to fix the flange member 3 to the wall 1.

[0034] Next, the effects of the sleeve 2 configured as described above will be described. According to this sleeve 2, the hollow cylindrical portion 2a of the sleeve 2 is provided with an inclined cutting guide portion 2b and a second cutting guide portion 2c. When inserting the hollow cylindrical portion 2a of the sleeve 2 into a through hole 1a formed in a wall 1, either the inclined cutting guide portion 2b or the second cutting guide portion 2c is selected depending on the inclination angle of the through hole 1a, and the hollow cylindrical portion 2a is cut in accordance with the selected cutting guide portion. This allows the end face of the hollow cylindrical portion 2a formed by the cut surface to be aligned with the wall surface of the wall 1, or to be aligned as closely as possible to the wall surface of the wall 1 (see FIG. 8). In other words, by cutting the hollow cylindrical portion 2a in accordance with the inclined cutting guide portion 2b or the second cutting guide portion 2c, the end face of the hollow cylindrical portion 2a can be aligned with the wall surface of the wall 1, or to be aligned as closely as possible to the wall surface of the wall 1, resulting in a good appearance after construction.

[0035] Specifically, the sleeve 2 includes a flange member 3 and an adjustment cylinder 4 (hollow cylinder portion 2a) that is inserted into a through hole 1a provided in the wall 1. The flange member 3 has a flange portion 3a that protrudes outward so as to be hooked onto the periphery of the wall front side 1b of the through hole 1a. The flange member 3 and the adjustment cylinder 4 can be connected together with the axial direction 3c of the flange member 3 and the axial direction 4b of the adjustment cylinder 4 misaligned from each other. Therefore, when the through hole 1a is inclined, by connecting the flange member 3 and the adjustment cylinder 4 together with the axial direction 3c of the flange member 3 and the axial direction 4b of the adjustment cylinder 4 misaligned from each other (i.e., by changing the protruding direction of the flange portion 3a), the back surface of the flange portion 3a can be aligned along the wall surface of the wall 1 (specifically, the wall surface of the wall front side 1b), or can be aligned as closely to the wall surface as possible (see FIG. 8). Furthermore, the adjustable cylinder 4 (hollow cylinder portion 2a) is provided with an inclined cutting guide portion 2b. When inserting the adjustable cylinder 4 of this sleeve 2 into the through hole 1a formed in the wall 1, if the through hole 1a is inclined, by cutting the adjustable cylinder 4 in accordance with the inclined cutting guide portion 2b, the end face of the adjustable cylinder 4 formed by the cut surface can be aligned with the wall surface 1c of the wall 1 opposite the wall front side 1b, or can be aligned as closely to the wall surface as possible (see FIG. 8). In other words, by cutting the adjustable cylinder 4 in accordance with the inclined cutting guide portion 2b, the end face of the adjustable cylinder 4 can be aligned with the wall surface 1c of the wall 1 opposite the wall front side 1b, or can be aligned as closely to the wall surface as possible, resulting in a good appearance after installation. Furthermore, since the adjustable cylinder 4 (hollow cylinder portion 2a) has a second cutting guide portion 2c in addition to the inclined cutting guide portion 2b, when cutting the adjustable cylinder 4, either the inclined cutting guide portion 2b or the second cutting guide portion 2c can be appropriately selected depending on the through hole 1a.

[0036] Furthermore, in a connected state in which the connecting portion 3b of the flange member 3 is fitted onto the other end side 4d of the adjustment cylinder 4, the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3 can be changed, and the flange member 3 can be rotated around the axis 3e of the flange member 3 relative to the adjustment cylinder 4 within a range of 360 degrees. This makes it possible to adjust the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3, and by rotating the flange member 3 about its axis 3e, the positions of the two straight portions 3d, 3d of the flange portion 3a can be changed. Furthermore, by changing the positions of the straight portions 3d, 3d in this manner, the flange portion 3a will not be exposed from the back of the device to be installed, such as an air conditioner indoor unit, and interference between the flange portion 3a and other obstacles, such as walls, can be avoided even if such obstacles are present near the through-hole 1a.

[0037] Furthermore, the second cross section 2f is perpendicular to the axis 2d of the hollow cylindrical portion 2a (more specifically, the axis 4a of the adjustment cylinder 4). As a result, when the through hole 1a formed in the wall 1 is perpendicular to the wall surface of the wall 1, by cutting the hollow cylindrical portion 2a at the second cutting guide portion 2c on the second cross section 2f, the end face of the hollow cylindrical portion 2a (more specifically, the adjustment cylinder 4) formed by the cut surface can be aligned with the wall surface of the wall 1 (more specifically, the wall surface 1c opposite to the wall front side 1b).

[0038] In addition, the oblique cutting guide 2b and the second cutting guide 2c are arranged so as not to intersect with each other. If the oblique cutting guide 2b and the second cutting guide 2c intersect with each other, when cutting along one cutting guide (the oblique cutting guide 2b or the second cutting guide 2c) and the angle difference between the oblique cross section 2e and the second cross section 2f is small, it may become unclear which is the contiguous guide at the intersection of the oblique cutting guide 2b and the second cutting guide 2c. Also, when both the oblique cutting guide 2b and the second cutting guide 2c are grooves, cutting along one cutting guide may cause the other to break at the intersection of the oblique cutting guide 2b and the second cutting guide 2c. However, if the oblique cutting guides do not intersect with each other, such problems can be prevented.

[0039] Furthermore, the inclined cutting guide portion 2b and the second cutting guide portion 2c are formed as grooves recessed into the outer surface of the hollow cylinder portion 2a (more specifically, the adjustment cylinder 4), but since they are formed so that the groove width and / or groove depth differ from each other, it is easy to distinguish between the inclined cutting guide portion 2b and the second cutting guide portion 2c.

[0040] Furthermore, the inclined cutting guide portion 2b and / or the second cutting guide portion 2c (in the illustrated embodiment, the inclined cutting guide portion 2b) is formed of a continuously extending recess forming an annular shape. This allows the cutting guide portion formed of the continuous recess to serve as a guide for the blade of a cutting tool such as a saw, making it easy to cut the adjustable cylinder 4 (hollow cylinder portion 2a).

[0041] The present invention is not limited to the above-described embodiment, and various other modifications are possible. For example, the sleeve 2 includes the flange member 3 and the adjustment cylinder 4 (hollow cylinder portion 2a), but the flange member 3 may be omitted.

[0042] Furthermore, the second cutting guide portion 2c provided in the adjustment cylinder 4 (hollow cylinder portion 2a) does not have to be perpendicular to the axis 4a of the adjustment cylinder 4 (axis 2d of the hollow cylinder portion 2a).

[0043] Furthermore, the adjustment cylinder 4 has the inclined cutting guide portion 2b and the second cutting guide portion 2c, but the second cutting guide portion 2c may be omitted.

[0044] Furthermore, in the adjustment cylinder 4 and the flange member 3, the connected surface 4f and the connecting surface 3f are formed to be spherically curved surfaces, but the side of the connected surface 4f and the connecting surface 3f that forms the inner surface (in the illustrated embodiment, the connected surface 4f) may be formed, for example, to be the inner surface of a cylinder with a constant diameter.

[0045] In addition, when the adjustment cylinder 4 and the flange member 3 are in a connected state in which the connection portion 3b of the flange member 3 is fitted to the other end side 4d of the adjustment cylinder 4, the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3 can be changed, and the flange member 3 can be rotated around the axis 3e of the flange member 3 relative to the adjustment cylinder 4 within a range of 360 degrees. For example, a locking claw can be provided on the connection portion 3b of the flange member 3, and a guide groove into which the locking claw engages can be provided on the other end side 4d of the adjustment cylinder 4, 3 may be tiltable relative to the adjustment cylinder 4 (the relative angle between the axis 4a of the adjustment cylinder 4 and the axis 3e of the flange member 3 may be changed), and in addition to the guide groove, another guide groove may be provided at a position shifted circumferentially on the adjustment cylinder 4 (for example, a position shifted by 180 degrees), and by rearranging the flange member 3 relative to the adjustment cylinder 4 and engaging the locking claw with the other guide groove, the position of the straight portion 3d of the flange portion 3a and the tilting direction of the flange member 3 relative to the adjustment cylinder 4 may be changed.

[0046] The inclined cutting guide portion 2b and the second cutting guide portion 2c are formed as recesses, but these recesses may be grooves recessed from the outer surface of the adjusting cylinder 4 (hollow cylinder portion 2a), or may be grooves formed by being sandwiched between two protrusions. The inclined cutting guide portion 2b and the second cutting guide portion 2c may simply be formed as lines.

[0047] Furthermore, the multiple inclined cutting guide portions 2b, 2b are aligned at equal intervals, but do not have to be aligned at equal intervals. Similarly, the multiple second cutting guide portions 2c, 2c are aligned at equal intervals, but do not have to be aligned at equal intervals.

[0048] Furthermore, the sleeve 2 includes an adjustment cylinder 4 that constitutes the hollow cylindrical portion 2a, and a flange member 3 having a flange portion 3a that is separate from the adjustment cylinder 4. However, instead of including the flange member 3, a flange portion 3a connected to the hollow cylindrical portion 2a by, for example, a bellows may be provided on one end side of the hollow cylindrical portion 2a. Furthermore, the flange portion 3a need only be provided on one end side of the hollow cylindrical portion 2a, and may not be limited to the end of the hollow cylindrical portion 2a, but may be provided at a position slightly offset from the end. Furthermore, the flange portion 3a may not be necessary. [Explanation of symbols]

[0049] 1. Wall 1a Through hole 1b Wall surface 2 スリーブ 2a Hollow cylindrical section 2b Inclined cutting inside the case 2c The second case of cutting off the interior 2d Hollow Cylinder Axis 2e Inclined section 2f Section 2 3. Edge material 3a Edge section 3b Connection 3c Axial direction of the shank material 3D linear section 3e Axis of E parts 4. Adjust the cylinder 4a Adjust the axis of the cylinder 4b Adjust the axis of the cylinder 4c One end side 4d other side

Claims

1. A sleeve through which wiring and piping materials are passed, A hollow cylindrical portion through which the wiring / piping material can be inserted is provided, The hollow cylindrical portion has, on its outer circumferential surface, an inclined cutting guide portion and a second cutting guide portion that serve as guides for cutting the hollow cylindrical portion, the inclined cutting guide portion is provided on an inclined cross section that intersects with the axis of the hollow cylindrical portion at a predetermined angle, The second cutting guide portion is provided on a second cross section that intersects with the axis of the hollow cylindrical portion at an angle different from that of the inclined cross section.

2. The sleeve according to claim 1 , wherein the second cross section is perpendicular to the axis of the hollow cylindrical portion.

3. The sleeve according to claim 2 , wherein the oblique cutting guide portion and the second cutting guide portion are provided so as not to intersect with each other.

4. 4. The sleeve according to claim 1, wherein the inclined cutting guide portion and the second cutting guide portion are formed as grooves recessed into the outer surface of the hollow cylindrical portion, and have different groove widths and / or groove depths.

5. 4. A sleeve as described in any one of claims 1 to 3, wherein a flange portion extending outward is provided on either end side of the hollow cylindrical portion, and the flange portion is capable of changing its extending direction relative to the axis of the hollow cylindrical portion.

6. A sleeve that is inserted into a through hole formed in a wall to allow wiring and piping materials to pass through, a flange member having a flange portion that protrudes outward so as to be hooked onto the periphery of the wall surface side of the through hole; and an adjustment cylinder that is inserted into the through hole and through which the wiring / piping material can be inserted, The adjustment cylinder has an inclined cutting guide portion on its outer circumferential surface, which serves as a guide for cutting the adjustment cylinder, The inclined cutting guide portion is provided on an inclined cross section that intersects with the axis of the adjustment cylinder at a predetermined angle, and a plurality of the oblique cutting guide portions are provided, and the oblique cutting guide portions are arranged parallel to each other in the axial direction of the adjustment cylinder to form an oblique cutting guide group; one of the oblique cutting guide portions is selected and one end of the adjustment cylinder is cut off, thereby making it possible to adjust the overall length of the adjustment cylinder; The flange member has a connection portion that is connected to the flange portion and to the other end side of the adjustment cylinder, and this connection portion allows the flange member and the adjustment cylinder to be connected in a state where the axial direction of the flange member and the axial direction of the adjustment cylinder are offset from each other.

7. The adjustment cylinder has a second cutting guide portion on its outer circumferential surface, which serves as a guide for cutting the adjustment cylinder, The second cutting guide portion is provided on a second cross section that intersects with the axis of the adjustment cylinder at an angle different from that of the inclined cross section, and The sleeve of claim 6, wherein the second cutting guide portions are provided in plurality, and the second cutting guide portions are arranged parallel to the axial direction of the adjustment cylinder within the range in which the inclined cutting guide group is provided, thereby forming a second cutting guide group, and the overall length of the sleeve can be adjusted by selecting one of the second cutting guide portions and cutting off one end side of the adjustment cylinder.

8. The flange has an outer shape in which an outer edge portion of the disk is cut off by two straight line portions that intersect at right angles, The connection portion is formed in a ring shape, A sleeve as described in claim 6 or 7, wherein, in a connected state in which the connection portion is fitted to the other end side of the adjustment cylinder, the relative angle between the axis of the adjustment cylinder and the axis of the flange member can be changed, and the flange member can be rotated around the axis of the flange member relative to the adjustment cylinder within a range of 360 degrees.

9. The sleeve according to claim 1 , 2 , 3 or 7 , wherein the inclined cutting guide portion and / or the second cutting guide portion are configured by a recess that extends continuously to form an annular shape.

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