JP7444435B2 - piping sleeve - Google Patents

Description

The present invention relates to, for example, a piping sleeve for guiding piping (refrigerant piping, drain hose, electric wire, etc.) of an air conditioner (air conditioner) from indoors to outdoors.

Conventionally, this type of piping sleeve has a structure that can accommodate a predetermined water slope (downhill slope, drainage slope) when installed on a wall, for the purpose of preventing rainwater from entering the room. has been proposed (for example, see Patent Documents 1 to 3).

Japanese Patent Application Publication No. 2007-262732 Japanese Patent Application Publication No. 2005-90684 Japanese Patent Application Publication No. 2004-308772

However, although these piping sleeves can cope with a predetermined water gradient, they have a large number of parts and a complicated structure, which inevitably leads to an increase in manufacturing costs.

In view of these circumstances, an object of the present invention is to provide a piping sleeve that can accommodate a predetermined water gradient and is inexpensive to manufacture.

The invention according to claim 1 is a piping sleeve for guiding piping from indoors to outdoors, which includes: a cylindrical sleeve body disposed so as to penetrate a wall separating the indoors and the outdoors; and a flange member attached to the indoor end of the sleeve body while the sleeve body is disposed on the wall, and the sleeve body and the flange member are relatively rotatable about an axis. a guide means configured to guide the flange member to adjust the angle with respect to the sleeve body when rotated relative to the sleeve body; A circumferentially engaged portion having a predetermined length is provided along the circumferential direction, and a circumferentially engaged portion that moves along the circumferentially engaged portion is provided on the other side, and the sleeve body or the flange One of the members is provided with an inclined engaged part having a predetermined length in a direction inclined with respect to the axis, and the other is provided with an inclined engaged part that moves along the inclined engaged part, By rotating the sleeve body and the flange member relative to each other about the axis, the circumferentially engaged portion and the inclined engaged portion are respectively aligned with respect to the circumferentially engaged portion and the inclined engaged portion. It is characterized in that the flange member is configured to move and adjust the angle of the flange member relative to the sleeve main body .

Further, in addition to the configuration described in claim 1 , the invention according to claim 2 provides that the circumferentially engaged portion and the inclined engaged portion are elongated holes, and the circumferentially engaged portion and the inclined engaged portion are elongated holes. The invention is characterized in that the inclined engagement portion is a protrusion that moves within the elongated hole.

Further, in addition to the structure according to claim 1 or 2 , the invention according to claim 3 is characterized in that the circumferentially engaged portion and the inclined engaged portion are arranged at opposing positions centering on the axis. It is characterized by

According to the invention described in claims 1 to 3 , the sleeve body is disposed on the wall in a state where the sleeve body and the flange member are rotated relative to each other about the axis to adjust the angle according to a predetermined water gradient. This makes it possible to install the piping sleeve on the wall in accordance with the predetermined water gradient. Moreover, since the number of parts is small and the structure is simple, the manufacturing cost of the piping sleeve can be kept low.

Further, according to the invention described in claims 1 to 3 , since the sleeve main body and the flange member are rotated relative to each other around the axis to adjust the angle, it is possible to prevent an axial force from acting on the flange member after the angle adjustment. The angle will not change easily even when the camera is in use, making it easier to use.

FIG. 1 is an exploded perspective view showing a piping sleeve according to Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view showing the piping sleeve shown in FIG. 1 in use. FIG. 2 is a diagram showing the sleeve body of the piping sleeve shown in FIG. 1, in which (a) is a front view, (b) is a left side view, (c) is a top view, (d) is a bottom view; e) is a sectional view taken along line AA in (c). 2 is a diagram showing a flange member of the piping sleeve shown in FIG. 1, (a) is a front view thereof, (b) is a top view thereof, (c) is a bottom view thereof, (d) is a right side view thereof, ( e) is its rear view. FIG. 2 is a diagram showing the piping sleeve shown in FIG. 1 in a state before the flange member is tilted with respect to the sleeve main body, in which (a) is a front view thereof, (b) is a left side view thereof, and (c) is a plan view thereof. In the figure, (d) is a bottom view thereof, (e) is a sectional view taken along line BB of (c), and (f) is a perspective view thereof. In the piping sleeve shown in FIG. 1, the flange member is tilted at a predetermined angle with respect to the sleeve body, in which (a) is a front view, (b) is a left side view, and (c) is a left side view. is a plan view thereof, (d) is a bottom view thereof, (e) is a sectional view taken along line CC in (c), and (f) is a perspective view thereof. FIG. 2 is an enlarged plan view showing a part of the piping sleeve shown in FIG. 1 in a state before the flange member is tilted with respect to the sleeve body and a state in which the flange member is tilted at a predetermined angle. FIG. 7 is an enlarged plan view showing one end of the sleeve main body of the piping sleeve according to Embodiment 2 of the present invention.

Embodiments of the present invention will be described below.
[Embodiment 1 of the invention]
Embodiment 1 of the present invention is shown in FIGS. 1 to 7.

As shown in FIG. 2, the piping sleeve 1 according to the first embodiment is used to guide the piping 4 (indicated by the two-dot chain line) of an air conditioner from the indoor room 5 to the outdoor room 6, and is made of AES resin. , ABS resin, ASA resin, ACS resin, polyethylene, polypropylene, polycarbonate, polyvinyl chloride (PVC), and other synthetic resins. As shown in FIGS. 1 and 2, this piping sleeve 1 includes a cylindrical sleeve body 2 disposed so as to penetrate a wall 7 separating an indoor room 5 and an outdoor room 6, and one of the sleeve bodies 2 ( A flange member 3 is attached to an end portion 2a (on the indoor 5 side) of the sleeve body 2 disposed on the wall 7 so as to be relatively rotatable about an axis.

As shown in FIGS. 2 and 3, this sleeve body 2 has a length D4 that is approximately the same as or slightly longer than the thickness D3 of the wall 7, and has a predetermined outer diameter D1 (for example, D1= 64 mm) and an inner diameter D2 (for example, D2=61 mm). As shown in FIGS. 3(c) to 3(e), one end portion 2a of the sleeve body 2 has inclined engaged portions at the upper and lower portions, respectively, when the sleeve body 2 is disposed on the wall 7. A slanted elongated hole 8 as a slanted elongated hole 8 and a circumferential elongated hole 9 as a circumferentially engaged portion are formed so as to communicate between the inside and outside of the sleeve body 2.

The oblique elongated hole 8 and the circumferential elongated hole 9 are arranged at positions facing each other in the circumferential direction of the sleeve body 2. The oblique elongated hole 8 and the circumferential elongated hole 9 are each arranged near the open end of one end 2a of the sleeve body 2. Note that the oblique elongated hole 8 and the circumferential elongated hole 9 are not necessarily arranged at positions facing each other in the circumferential direction of the sleeve body 2, but may be arranged at positions shifted from the opposing positions.

Here, as shown in FIG. 3(c), the oblique elongated hole 8 is formed as an elongated hole that is inclined at a predetermined inclination angle θ with respect to the axis of the sleeve body 2 and extends for a predetermined length. . As shown in FIG. 3(d), the circumferential elongated hole 9 is formed as a long hole that extends a predetermined length along the circumferential direction with the axis of the sleeve body 2 as the center. In this embodiment, the inclination angle θ of the sleeve body 2 with respect to the axis is about 25°.

Further, as shown in FIGS. 3(a), (c), and (d), the outer peripheral surface of the sleeve body 2 is arranged from one end 2a of the sleeve body 2 to the other (the sleeve body 2 is disposed on the wall 7). A plurality of cutting aid grooves 10 (in this embodiment, 13 grooves) extend along the circumferential direction of the sleeve body 2 up to the end 2b (outdoor 6 side) in the axial direction of the sleeve body 2. They are formed at predetermined intervals P.

On the other hand, as shown in FIG. 4, the flange member 3 has an insertion tube portion 11 formed in a substantially arc shape with a radius of curvature R1 approximately equal to the inner diameter D2 of the sleeve body 2, and one side of the insertion tube portion 11. At the end (on the side opposite to the sleeve main body 2), a substantially annular flange 12 is integrally formed so as to protrude toward the outer circumferential side.

In addition, the insertion tube portion 11 has engagement protrusions 13 and 14 formed at its upper and lower portions, respectively, so as to protrude toward the outer circumferential side when the sleeve body 2 is attached. As shown in FIG. 4(b), the engaging protrusion 13 is formed into a substantially parallelogram shape in a plan view inclined in accordance with the inclination angle of the oblique elongated hole 8. As shown in FIG. 4(c), the engaging protrusion 14 is formed into a rectangular shape in plan view, corresponding to the shape of the circumferential elongated hole 9. In this embodiment, the engaging protrusions 13 and 14 are formed into a substantially parallelogram and a rectangular shape, respectively, but they are not limited to these shapes, but may be formed into other shapes such as a circle or an ellipse in plan view. Good too.

As shown in FIGS. 5 and 6, the sleeve body 2 and the flange member 3 are arranged so that the engagement protrusion 13 engages with the oblique elongated hole 8, and the engagement protrusion 14 engages with the circumferential elongated hole 9. They are connected to each other by engagement.

By relatively rotating the sleeve body 2 and the flange member 3 about the axis, the circumferential elongated hole 9 is formed into an engaging protrusion because the distance to the open end of one end 2a of the sleeve body 2 does not change. Even if the portion 14 moves along the circumferential elongated hole 9, the angle of the collar portion 12 near the engagement protrusion 14 with respect to the sleeve body 2 does not change. At this time, since the distance between the inclined elongated hole 8 and the open end of one end 2a of the sleeve main body 2 changes, when the engaging protrusion 13 moves along the inclined elongated hole 8, the distance changes. Accordingly, the angle of the collar portion 12 near the engaging protrusion 13 with respect to the sleeve body 2 changes. As a result, only the flange 12 of the insertion tube 11 near the engagement protrusion 13 is separated from one end 2a of the sleeve body 2, and the angle of the flange member 3 with respect to the sleeve body 2 is adjusted. becomes.

In this embodiment, an oblique elongated hole 8, an engaging protrusion 13 that moves along the oblique elongated hole 8, a circumferential elongated hole 9, and an engaging protrusion that moves along the circumferential elongated hole 9. Reference numeral 14 constitutes a guide means for guiding the flange member 3 so as to adjust the angle with respect to the sleeve body 2 when the sleeve body 2 is rotated relative to the sleeve body 2.

Next, the effects of this embodiment will be explained.

Since the piping sleeve 1 has the above-mentioned configuration, as shown in FIG. When installing the piping sleeve 1 on the wall 7 in accordance with the water gradient, the following procedure is followed.

First, in the piping sleeve preparation process, as shown in FIGS. 5 and 6, the flange member 3 is rotated and angularly adjusted with respect to the sleeve body 2 according to the water gradient. The portion 12 is inclined with respect to the axis of the sleeve body 2 by an inclination angle θ equal to the water gradient.

For example, when the water gradient is 7 degrees, as shown in FIGS. 5 and 6, the sleeve body 2 and the flange member 3 are rotated relative to each other about the axis, so that the engagement protrusion 14 is moved toward the rearmost side. At the same time as moving from the position P1 along the circumferential elongated hole 9 to the forwardmost position P2, the engaging protrusion 13 moves from the rearmost position P1 along the inclined elongated hole 8 to the forwardmost position P2.

At this time, since the distance from the circumferential elongated hole 9 to the open end of one end 2a of the sleeve main body 2 does not change, even if the engagement protrusion 14 moves along the circumferential elongated hole 9, the engagement will not occur. The angle of the collar portion 12 near the protrusion 14 with respect to the sleeve body 2 does not change. On the other hand, since the distance between the inclined elongated hole 8 and the open end of one end 2a of the sleeve main body 2 changes, when the engagement protrusion 13 moves along the inclined elongated hole 8, the engagement protrusion 13 The angle of the collar portion 12 near the sleeve body 2 changes.

As a result, although the position of the flange 12 near the engagement protrusion 14 with respect to the one end 2a of the sleeve body 2 does not change, the flange 12 near the engagement protrusion 13 of the insertion tube 11 Since it is separated from one end 2a of the main body 2, the flange 12 of the flange member 3 is inclined at 7 degrees with respect to the axial direction of the sleeve main body 2.

Incidentally, as shown in FIG. 7, the engagement protrusion 13 in the oblique elongated hole 8 is formed in the oblique elongated hole 8 with respect to the length L1 from the rearmost position P1 to the open end of one end 2a of the sleeve main body 2. The length obtained by subtracting the length L2 from the forwardmost position P2 to the open end of one end 2a is the length L3 that the collar 12 is separated from the open end of the one end 2a of the sleeve body 2. . A length L3 by which the flange 12 is separated from the open end of the end 2a is proportional to the angle of inclination of the flange 12 with respect to the axial direction of the sleeve body 2.

In addition, in the piping sleeve 1 of this embodiment, the sleeve body 2 and the flange member 3 are rotated relative to each other around the axis to adjust the angle. Even when the force F is applied, the engaging protrusion 13 comes into pressure contact with the inclined wall in the inclined elongated hole 8. Since the pressing force is broken down and reduced by the inclined surface of the inclined wall, the angle of the flange portion 12 of the flange member 3 does not change easily.

Furthermore, when the water gradient is 0°, as shown in FIG. 5, the sleeve body 2 and the flange member 3 maintain the engagement protrusion 13 at the rearmost position P1 without relative rotation around the axis. At the same time, the engagement protrusion 14 is also held at the rearmost position P1. Then, the piping sleeve 1 is in a state in which the flange 12 of the flange member 3 is inclined at 0° with respect to the axis of the sleeve body 2, that is, the entire flange 12 is aligned with the open end of one end 2a of the sleeve body 2. They remain in contact.

Note that when the sleeve body 2 and the flange member 3 are rotated relative to each other around the axis in this manner, the outer circumferential surface of the insertion tube portion 11 of the flange member 3 slides against the inner circumferential surface of the sleeve body 2. become. However, as described above, the insertion cylinder portion 11 of the flange member 3 is formed in a substantially arc shape with a radius of curvature R1 approximately equal to the inner diameter D2 of the sleeve body 2, so that the angle of the flange member 3 can be adjusted smoothly. I can do it.

Next, the process moves to a sleeve body disposing step, and the sleeve body 2 is disposed on the wall 7 in the room 5 shown in FIG. To do this, the sleeve body 2 is inserted into the through hole 7a of the wall 7, with the sleeve body 2 positioned forward (outdoor 6 side) and the flange member 3 positioned rearward (indoor 5 side). At this time, the engagement protrusion 13 is positioned above and the engagement protrusion 14 is positioned below. Then, as shown in FIG. 2, in the piping sleeve 1, the flange 12 of the flange member 3 is in contact with the inner surface 7b of the wall 7 over the entire circumference, and the end 2b of the sleeve body 2 is in contact with the outer surface of the wall 7. It will be in a state where it slightly protrudes from 7c to the outdoor side 6.

Finally, proceeding to the sleeve body cutting step, the end portion 2b of the sleeve body 2 protruding from the outer surface 7c of the wall 7 is cut off to a predetermined length in accordance with the thickness D3 of the wall 7 outside the room 6. To do this, the sleeve body 2 is cut along the cutting aid groove 10 using a cutting means (not shown) such as a cutter knife or a saw.

At this time, as described above, the sleeve body 2 is formed with a plurality of cutting aid grooves 10 at predetermined intervals in the longitudinal direction of the sleeve body 2. By cutting, the end portion 2b of the sleeve body 2 can be cut off easily and quickly.

Construction of the piping sleeve 1 is completed through the above steps.

According to the present embodiment, when constructing the piping sleeve 1, the angle of the flange member 3 with respect to the sleeve body 2 is adjusted according to a predetermined water gradient (for example, 7°, 0°, etc.). After the sleeve body 2 is placed on the wall 7 in this state, the piping sleeve 1 can be installed on the wall 7 in accordance with a predetermined water gradient by simply cutting off the end 2b of the sleeve body 2.

Furthermore, as described above, this piping sleeve 1 is composed of only two parts, the sleeve main body 2 and the flange member 3, and has a small number of parts. Moreover, this piping sleeve 1 has a simple structure, with only a flange member 3 connected to the sleeve body 2 so as to be adjustable in angle. As a result, the manufacturing cost of the piping sleeve 1 can be kept low.

In addition, in the piping sleeve 1 of this embodiment, since the sleeve body 2 and the flange member 3 are rotated relative to each other around the axis to adjust the angle, an axial force is applied to the flange member 3 after the angle is adjusted. Even in such a case, the angle of the flange portion 12 of the flange member 3 does not change easily, resulting in improved usability.

In addition, in the piping sleeve 1 of the present embodiment, as described above, when the sleeve body 2 and the flange member 3 are rotated relative to each other around the axis, and the engaging protrusion 13 is moved along the inclined elongated hole 8, , since the angle of the flange 12 near the engagement protrusion 13 changes with respect to the sleeve body 2, the engagement protrusion 13 changes while moving from the rearmost position P1 to the frontmost position P2 in the oblique elongated hole 8. By stopping this, it becomes possible to finely adjust the angle of the collar portion 12 of the flange member 3.

That is, between the rearmost position P1 and the forwardmost position P2 in the oblique elongated hole 8, the engagement protrusion 13 can be stopped at a desired position. The angle with respect to the sleeve body 2 can be freely adjusted.

Furthermore, as described above, in this piping sleeve 1, the flange member 3 is supported relative to the sleeve body 2 so as to be freely rotatable, and the radius of rotation when the flange member 3 rotates relative to the sleeve body 2 is the inner diameter D2 of the sleeve body 2. They are almost equal. Therefore, the insertion tube portion 11 of the flange member 3 can be formed with a relatively small curvature. Moreover, when the piping sleeve 1 is installed on the wall 7, as long as the through hole 7a of the wall 7 is closed by the collar 12 of the flange member 3, the end 2a of the sleeve body 2 and the flange member 3 Even if some gap occurs between the insertion cylinder part 11 and the insertion cylinder part 11, no practical problem will occur. As a result, the piping sleeve 1 can be manufactured using a general-purpose resin molding method, and from this point as well, the manufacturing cost of the piping sleeve 1 can be reduced.
[Embodiment 2 of the invention]
FIG. 8 shows a second embodiment of the present invention. In the second embodiment, the same reference numerals are given to the parts corresponding to those in the first embodiment, and structures and operations different from those in the first embodiment will be explained.

The inclined elongated hole 8 as the inclined engaged part of the piping sleeve 1 according to the second embodiment includes an inclined part 8a which is inclined at a predetermined inclination angle θ with respect to the axis of the sleeve body 2, as shown in FIG. A circumferential portion 8b is formed continuously by bending from this inclined portion 8a. The circumferential portion 8b is formed to extend shorter than the inclined portion 8a along the circumferential direction around the axis of the sleeve body 2.

The flange member 3 has an engagement protrusion 13 formed at its upper part in a state where it is attached to the sleeve body 2 so as to protrude toward the outer circumference. The engaging protrusion 13 is formed into a substantially parallelogram shape in a plan view, inclined in accordance with the inclination angle of the inclined portion 8a. The engaging protrusion 13 is formed to be slightly smaller than the width of the inclined portion 8a and the circumferential portion 8b in order to facilitate bending from the inclined portion 8a and moving to the continuous circumferential portion 8b.

Since the piping sleeve 1 according to the second embodiment is configured as described above, the engagement protrusion 13 is moved to the rearmost position P1 by relatively rotating the sleeve body 2 and the flange member 3 about the axis. After moving along the inclined portion 8a, it bends from the circumferential portion 8b and moves to the forwardmost position P2 of the circumferential portion 8b.

Since this circumferential portion 8b is formed along the circumferential direction centering on the axis of the sleeve body 2, after the engagement protrusion 13 moves along the inclined portion 8a at the rearmost position P1, the circumferential portion 8b Even if the axial force F shown in FIG. 7 is applied to the flange member 3 after the angle has been adjusted by moving from It comes into pressure contact with the wall surface of the portion 8b.

Since the wall surface of this circumferential portion 8b is disposed in a direction perpendicular to the axial force F, the pressure contact force is received by the wall surface, so that the angle of the flange portion 12 of the flange member 3 is completely There will be no change. As a result, it is possible to provide a highly reliable piping sleeve 1 that is easy to use. Note that the other configurations and effects are the same as those of the first embodiment, so their explanations will be omitted.
[Other embodiments of the invention]
In the first and second embodiments described above, the oblique elongated hole 8 is inclined at a predetermined inclination angle θ (approximately 25°) with respect to the axis of the sleeve body 2, and is an elongated hole extending a predetermined length. Although the example in which the oblique hole 8 is formed is described above, the invention is not limited thereto. For example, if the inclination angle θ of the oblique elongated hole 8 is inclined to 20° or less, which is gentler than 25°, and the oblique elongated hole 8 is formed longer, the engaging protrusion can be formed. 13 becomes longer, and the angle of the flange portion 12 of the flange member 3 can be more finely adjusted in response to a wide range of water gradients within the movement range of the engagement protrusion 13. In this case, the length of the circumferential elongated hole 9 must also be increased to correspond to the length of the inclined elongated hole 8.

If the inclination angle θ of the oblique elongated hole 8 is made more gentle and the oblique elongated hole 8 is formed longer, even if the axial force F acts on the flange member 3 after the angle adjustment, the Compared to form 1, the angle of the flange portion 12 of the flange member 3 is more difficult to change, and the usability is further improved.

Further, in the first and second embodiments described above, when installing the piping sleeve 1 on the wall 7, the end portion 2b of the sleeve body 2 protruding from the outer surface 7c of the wall 7 is cut into the wall 7 in the sleeve body cutting process. The case where a predetermined length is cut off according to the thickness D3 has been described. However, if the sleeve body 2 has a length D4 corresponding to the thickness D3 of the wall 7 in advance, this sleeve body cutting step can be omitted.

Furthermore, in the first and second embodiments described above, the piping sleeve 1 is made of synthetic resin, but the material of the piping sleeve 1 is not limited to synthetic resin. The present invention can be similarly applied to a piping sleeve 1 in which both or one of the sleeve body 2 and the flange member 3 constituting the piping sleeve 1 is made of a material other than synthetic resin.

Furthermore, in the first and second embodiments described above, the piping sleeve 1 was described in which the oblique elongated holes 8 and the circumferential elongated holes 9 were formed so that the inside and outside of the sleeve body 2 communicated with each other, but these oblique elongated holes 8 The circumferential elongated holes 9 and the circumferential elongated holes 9 do not necessarily have to be formed so that the inside and outside of the sleeve body 2 communicate with each other, and may be formed as long grooves that do not communicate with each other. Any material may be used as long as it guides the movement of the protrusions 13 and 14.

In addition, in the first and second embodiments described above, the piping sleeve 1 was described in which the sleeve body 2 was provided with the oblique long hole 8 and the circumferential long hole 9, and the flange member 3 was provided with the engaging protrusions 13 and 14. . However, the inclined elongated hole 8 and the circumferential elongated hole 9 and the engagement protrusions 13 and 14 are reversed, and the engagement protrusions 13 and 14 are provided on the sleeve body 2, and the inclined elongated hole 8 and the engagement protrusion 14 are provided on the flange member 3. It is also possible to provide circumferential elongated holes 9.

Further, in the first and second embodiments described above, an example was described in which one inclined elongated hole 8 and one circumferential elongated hole 9 were formed in the sleeve body 2, but the invention is not limited to this, and a plurality of oblong holes may be formed. .

Further, in the first and second embodiments described above, an example has been described in which the oblique elongated hole 8 and the circumferential elongated hole 9 are formed in the sleeve body 2 in a linear shape, respectively, but the invention is not limited to this, and for example, the whole is formed in an arc shape. You may also do so.

Furthermore, in the first and second embodiments described above, the piping sleeve 1 has been described in which 13 cutting-assisting grooves 10 are formed on the outer peripheral surface of the sleeve body 2, but it goes without saying that the number of cutting-assisting grooves 10 is It is not limited to 13 pieces.

Further, in the first and second embodiments described above, the piping sleeve 1 for guiding the piping of an air conditioner from the indoor room 5 to the outdoor 6 has been described, but equipment other than the air conditioner (for example, a water heater, a water heater, etc.) ) The present invention can be similarly applied to a piping sleeve 1 for guiding piping.

The present invention can be widely applied to piping sleeves for guiding piping from indoors to outdoors. Examples of the piping include various piping such as a refrigerant piping, a drain hose, a humidifying hose, an air supply hose, an exhaust hose, a water supply piping, a hot water supply piping, a gas pipe, and an electric wire.

1...Piping sleeve 2...Sleeve body 2a...One end (indoor end)
2b...Other end (outdoor side end)
3...Flange member 5...Indoor 6...Outdoor 7...Wall 7a...Through hole 8...Slanted long hole (slanted engaged part)
9... Circumferential long hole (circumferentially engaged part)
10... Groove for cutting assistance 11... Insertion cylinder part 12... Collar part 13... Engaging protrusion (slope engaging part)
14... Engaging protrusion (circumferential engagement part)
P1...Rearmost position P2...Frontmost position

Claims (3)

A piping sleeve for guiding piping from indoors to outdoors,
A cylindrical sleeve body disposed so as to penetrate a wall separating the indoor and outdoor areas, and a sleeve body attached to an end of the sleeve body on the indoor side while being disposed on the wall. and a flange member,
The sleeve main body and the flange member are configured to be relatively rotatable about an axis, and a guide means is provided for guiding the flange member to adjust the angle with respect to the sleeve main body when the sleeve main body and the flange member are rotated relative to each other .
The guide means is provided with a circumferentially engaged portion having a predetermined length along the circumferential direction centering on the axis on one of the sleeve main body or the flange member, and a circumferentially engaged portion having a predetermined length provided on the other side. A circumferential engaging portion that moves along the axis is provided, and one of the sleeve main body and the flange member is provided with an inclined engaged portion having a predetermined length in a direction inclined with respect to the axis, and the other is provided with an inclined engaged portion having a predetermined length in a direction inclined with respect to the axis. An inclined engagement part that moves along the inclined engaged part is provided,
By relatively rotating the sleeve main body and the flange member about the axis, the circumferentially engaged portion and the inclined engaged portion are rotated, respectively. A piping sleeve, characterized in that the flange member is configured to move so that the angle of the flange member relative to the sleeve body is adjusted . The circumferential engaged portion and the inclined engaged portion are elongated holes, and the circumferential engaged portion and the inclined engaged portion are protrusions that move within the elongated holes. The piping sleeve according to claim 1. The piping sleeve according to claim 1 or 2, wherein the circumferentially engaged portion and the inclined engaged portion are arranged at opposing positions with the axis as the center .

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