JP5944779B2 - 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 the room to the outdoors.

  Conventionally, this type of piping sleeve has a structure that can cope with a predetermined water gradient (downhill slope, draining slope) in a state where it is constructed on a wall for the purpose of preventing rainwater from entering the room. Has been proposed (see, for example, Patent Documents 1 to 3).

JP 2007-262732 A JP-A-2005-90684 JP 2004-308772 A

  However, although these piping sleeves can cope with a predetermined water gradient, the number of parts is large and the structure is complicated, which inevitably increases the manufacturing cost.

  In view of such circumstances, an object of the present invention is to provide a piping sleeve that can cope with a predetermined water gradient and is low in manufacturing cost.

  The invention according to claim 1 is a piping sleeve for guiding piping from the room to the outside, a cylindrical sleeve body disposed so as to pass through a wall separating the room and the outdoors, A flange member attached to an end of the sleeve body on the indoor side in a state where the sleeve body is disposed on the wall, and the sleeve body is attached to the wall at the end of the sleeve body. One of an engagement hole or an engagement claw is formed in each of the upper and lower portions in the disposed state, and the flange member is inserted into the insertion tube portion inserted into the sleeve body of the flange member. The engagement hole or the other of the engagement claws is formed at the upper part and the lower part of the sleeve body in the state of being attached to the end, respectively, and at least one of the two engagement holes is at the front. A long hole extending in the longitudinal direction of the sleeve main body, and the engaging claw corresponding to the long hole moves along the long hole so that the flange member is connected to the sleeve main body so that the angle can be adjusted. It is characterized by having a piping sleeve.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the two engagement holes are formed in the end portion of the sleeve body, and the insertion tube of the flange member is formed. The portion is formed with the two engaging claws.

  According to a third aspect of the present invention, in addition to the configuration according to the second aspect, the flange member swings around one of the two engaging claws as a center, and the other engaging hook. An angle with respect to the sleeve body is adjusted by moving the joint claw along the long hole which is an engagement hole corresponding to the other engagement claw.

  Further, in the invention described in claim 4, in addition to the structure described in claim 2, both of the two engagement holes are elongated holes extending in the longitudinal direction of the sleeve body,

  In the flange member, one of the two engaging claws moves along the one long hole, which is an engaging hole corresponding to the one engaging claw, and the other engaging claw. The angle with respect to the sleeve body is adjusted by moving the joint claw along the other long hole which is an engagement hole corresponding to the other engagement claw. .

  Furthermore, in the invention according to claim 5, in addition to the structure according to any one of claims 1 to 4, the sleeve body includes a plurality of cutting assisting grooves along a circumferential direction of the sleeve body. It is characterized by being formed at predetermined intervals in the longitudinal direction of the main body.

  According to the first to fourth aspects of the present invention, the piping sleeve is predetermined by simply disposing the sleeve main body on the wall in a state in which the angle of the flange member is adjusted with respect to the sleeve main body according to a predetermined water gradient. It is possible to construct the wall according to the water gradient. In addition, since the number of components is small and the structure is simple, the manufacturing cost of the piping sleeve can be kept low.

  According to the invention described in claim 5, after the pipe sleeve is constructed on the wall, the sleeve main body is cut along the cutting assisting groove so that the end of the sleeve main body is cut off easily and quickly. be able to.

It is a figure which shows the piping sleeve which concerns on Embodiment 1 of this invention, Comprising: (a) is the disassembled perspective view, (b) is the assembly perspective view. It is a figure which shows the sleeve main body of the piping sleeve shown in FIG. 1, (a) is the front view, (b) is the left view, (c) is the top view, (d) is the bottom view, e) is a sectional view taken along line AA in FIG. It is a figure which shows the flange member of the piping sleeve shown in FIG. 1, (a) is the front view, (b) is the top view, (c) is the bottom view, (d) is the right side view, e) is a rear view thereof. It is a longitudinal cross-sectional view which shows the use condition of the piping sleeve shown in FIG. In the piping sleeve shown in FIG. 1, it is a figure which shows the state which inclined the flange member 7 degrees with respect to the sleeve main body, Comprising: (a) is the front view, (b) is the longitudinal cross-sectional view. In the piping sleeve shown in FIG. 1, it is a figure which shows the state which inclined the flange member 0 degree with respect to the sleeve main body, Comprising: (a) is the front view, (b) is the longitudinal cross-sectional view. It is a figure which shows the piping sleeve which concerns on Embodiment 2 of this invention, Comprising: (a) is the disassembled perspective view, (b) is the assembly perspective view. It is a figure which shows the sleeve main body of the piping sleeve shown in FIG. 7, (a) is the front view, (b) is the left view, (c) is the top view, (d) is the bottom view, e) is a sectional view taken along line BB in FIG. It is a figure which shows the flange member of the piping sleeve shown in FIG. 7, (a) is the front view, (b) is the top view, (c) is the bottom view, (d) is the right side view, e) is a rear view thereof. In the piping sleeve shown in FIG. 7, it is a figure which shows the state which inclined the flange member 7 degrees with respect to the sleeve main body, Comprising: (a) is the front view, (b) is the longitudinal cross-sectional view. In the piping sleeve shown in FIG. 7, it is a figure which shows the state which inclined the flange member 0 degree with respect to the sleeve main body, Comprising: (a) is the front view, (b) is the longitudinal cross-sectional view. In the piping sleeve shown in FIG. 7, it is a figure which shows the state which inclined the flange member 3.5 degrees with respect to the sleeve main body, Comprising: (a) is the front view, (b) is the longitudinal cross-sectional view.

Embodiments of the present invention will be described below.
Embodiment 1 of the Invention

  1 to 6 show a first embodiment of the present invention.

  As shown in FIG. 4, the piping sleeve 1 according to Embodiment 1 is used to guide the piping (not shown) of the air conditioner from the indoor 5 to the outdoor 6. AES resin, ABS resin , ASA resin, ACS resin, polyethylene, polypropylene, polycarbonate, and synthetic resin such as polyvinyl chloride (PVC). As shown in FIGS. 1 and 4, the piping sleeve 1 includes a substantially cylindrical sleeve body 2 disposed so as to pass through a wall 7 separating the indoor 5 and the outdoor 6, and one of the sleeve main bodies 2. The flange member 3 is swingably attached to an end portion 2a on the side of the room 5 with the sleeve body 2 disposed on the wall 7.

  2 and 4, the sleeve body 2 has a length D4 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. 2 (c) to 2 (e), one end portion 2 a of the sleeve body 2 is provided with an engagement hole 8 in the upper and lower portions when the sleeve body 2 is disposed on the wall 7, respectively. 9 is formed so as to communicate with the inside and outside of the sleeve body 2. Here, the engagement hole 8 is a long hole extending in the longitudinal direction (arrow L direction) of the sleeve main body 2. Further, on the outer peripheral surface of the sleeve main body 2, the circumferential direction of the sleeve main body 2 extends from the substantially central portion of the sleeve main body 2 to the end 2 b on the other side (the outdoor 6 side when the sleeve main body 2 is disposed on the wall 7). A plurality of (10 in the first embodiment) cutting assisting grooves 10 are formed at predetermined intervals P in the longitudinal direction of the sleeve body 2.

  On the other hand, as shown in FIG. 3, the flange member 3 has an insertion tube portion 11 formed in a substantially spherical shape having a curvature radius R <b> 1 substantially equal to the inner diameter D <b> 2 of the sleeve body 2. A substantially annular flange 12 is integrally connected to the end of the (opposite side of the sleeve body 2). Further, the insertion cylinder portion 11 is formed with engaging claws 13 and 14 at the upper portion and the lower portion, respectively, in a state where it is attached to the sleeve body 2. Further, a convex piece 15 is formed in the insertion cylinder portion 11 in the vicinity of the engaging claw 13 so as to protrude to the sleeve main body 2 side continuously to the spherical surface of the insertion cylinder portion 11.

  As shown in FIGS. 5 and 6, the sleeve main body 2 and the flange member 3 are configured such that the engaging claw 13 engages with the engaging hole 8 and the engaging claw 14 engages with the engaging hole 9. As a result, the flange member 3 swings about the engagement claw 14 and the engagement claw 13 moves along the engagement hole 8, so that the flange member 3 moves relative to the sleeve body 2. The angle is adjustable.

  Since the piping sleeve 1 has the above-described configuration, when the through-hole 7a is formed in the wall 7 with a predetermined water gradient (for example, 7 °, 0 °, etc.) as shown in FIG. When the piping sleeve 1 is constructed on the wall 7 in correspondence with the water gradient, the following procedure is used.

  First, in the piping sleeve preparation process, as shown in FIGS. 5 and 6, the flange member 3 is appropriately swung with respect to the sleeve main body 2 to adjust the angle according to the water gradient. It is assumed that the flange portion 12 is inclined by an angle θ equal to the water gradient with respect to a plane perpendicular to the longitudinal direction (arrow L direction) of the sleeve body 2.

  For example, when the water gradient is 7 °, as shown in FIG. 5, the flange member 3 is swung around the engagement claw 14, and the engagement claw 13 is moved forward along the engagement hole 8. Move to position P1. Then, the piping sleeve 1 will be in the state in which the collar part 12 of the flange member 3 incline 7 degrees with respect to the plane orthogonal to the longitudinal direction (arrow L direction) of the sleeve main body 2. FIG.

  At this time, as described above, since the protruding piece 15 is provided in the insertion cylinder portion 11 in the vicinity of the engaging claw 13 so as to protrude toward the sleeve main body 2, the engaging claw 13 is at the foremost position P1. Even in the positioned state, the engaging hole 8 can be closed from the inside by the convex piece 15. Therefore, it is possible to prevent the occurrence of a situation in which moisture and dust enter the inside through the engagement hole 8 from the outside of the sleeve body 2 after the construction of the piping sleeve 1.

  When the water gradient is 0 °, the flange member 3 is swung around the engagement claw 14 as shown in FIG. Move to position P2. Then, the piping sleeve 1 is in a state in which the flange portion 12 of the flange member 3 is inclined by 0 ° with respect to a plane perpendicular to the longitudinal direction of the sleeve body 2, that is, in a state parallel to this plane.

  When the flange member 3 is swung around the engaging claw 14 in this way, the outer peripheral surface of the insertion tube portion 11 of the flange member 3 slides with respect to the inner peripheral surface of the sleeve body 2. . However, since the insertion cylinder portion 11 of the flange member 3 is formed in a substantially spherical shape having a curvature radius R1 substantially equal to the inner diameter D2 of the sleeve body 2 as described above, the flange member 3 can be smoothly swung. Can do.

  Next, the process proceeds to the sleeve body placement step, and the sleeve body 2 is placed on the wall 7 in the room 5. For this purpose, the sleeve body 2 is inserted into the through-hole 7 a of the wall 7 in a state where the sleeve body 2 is located on the front side (outdoor 6 side) and the flange member 3 is located on the rear side (room 5 side). At this time, the engaging claw 13 is positioned upward and the engaging claw 14 is positioned downward. Then, as shown in FIG. 4, the pipe sleeve 1 has the flange portion 12 of the flange member 3 in contact with the inner surface 7 b of the wall 7 over the entire circumference without any gap, and the end portion 2 b of the sleeve body 2 is the outer surface of the wall 7. It will be in the state which protruded a little from 7c to the outdoor 6 side.

  Finally, the process proceeds to the sleeve main body cutting step, and in the outdoor 6, the end 2 b of the sleeve main body 2 protruding from the outer surface 7 c of the wall 7 is cut off by a predetermined length according to the thickness D 3 of the wall 7. For this purpose, the sleeve body 2 is cut along the cutting assisting groove 10 using a cutting means (not shown) such as a cutter knife or a saw.

  At this time, as described above, since the plurality of cutting assisting grooves 10 are formed in the sleeve body 2 at predetermined intervals in the longitudinal direction of the sleeve main body 2, the sleeve main body 2 extends along the cutting assisting grooves 10. By cutting, the end portion 2b of the sleeve body 2 can be cut off easily and quickly.

  Here, the construction of the piping sleeve 1 is completed.

  Thus, when the piping sleeve 1 is constructed, the sleeve body 2 is adjusted in a state in which the angle of the flange member 3 is adjusted with respect to the sleeve body 2 according to a predetermined water gradient (for example, 7 °, 0 °, etc.). After disposing on the wall 7, the pipe sleeve 1 can be applied to the wall 7 in correspondence with a predetermined water gradient only by cutting off the end 2 b of the sleeve body 2.

  In addition, as described above, the piping sleeve 1 is composed of only two parts, that is, the sleeve main body 2 and the flange member 3, and the number of parts is small. Further, the piping sleeve 1 is simply structured such that the flange member 3 is connected to the sleeve body 2 so that the angle can be adjusted, and the structure is simple. As a result, the manufacturing cost of the piping sleeve 1 can be kept low.

Further, as described above, the flange member 3 is swingably supported with respect to the sleeve body 2 in the piping sleeve 1, and the turning radius of the flange member 3 when swinging is set to the inner diameter D <b> 2 of the sleeve body 2. It is almost equal. Therefore, the insertion cylinder part 11 of the flange member 3 can be formed with a comparatively small curvature. In addition, in a state where the piping sleeve 1 is applied to the wall 7, as long as the through hole 7 a of the wall 7 is closed by the flange portion 12 of the flange member 3, the end 2 a of the sleeve body 2 and the flange member 3 Even if a slight gap is generated between the insertion tube portion 11 and the insertion tube portion 11, a practical problem does not occur. As a result, the piping sleeve 1 can be manufactured using a general-purpose resin molding method, and the manufacturing cost of the piping sleeve 1 can be reduced also from this point.
[Embodiment 2 of the Invention]

  7 to 12 show a second embodiment of the present invention.

  As shown in FIG. 7, the piping sleeve 1 according to the second embodiment includes a substantially cylindrical sleeve main body 2 disposed so as to penetrate a wall 7 separating the indoor 5 and the outdoor 6, and the sleeve main body 2. The flange member 3 is swingably attached to an end portion 2a on one side (in the state where the sleeve main body 2 is disposed on the wall 7).

  As shown in FIG. 8, the sleeve body 2 has one end 2 a (on the side of the room 5 with the sleeve body 2 disposed on the wall 7) in the longitudinal direction (arrow L direction) of the sleeve body 2. The end 2b on the other side (outdoor 6 side when the sleeve main body 2 is disposed on the wall 7) is open in the longitudinal direction of the sleeve main body 2 while being slightly inclined with respect to a perpendicular plane. It opens in a circle perpendicular to (arrow L direction). Here, as shown in FIG. 8E, the sleeve main body 2 has the longest upper portion in the state where the sleeve main body 2 is disposed on the wall 7, and the shortest lower portion in the same state. It has become. The two engagement holes 8 and 9 are both long holes extending in the longitudinal direction (arrow L direction) of the sleeve body 2.

  On the other hand, as shown in FIG. 9, the flange member 3 has an insertion cylinder portion 11 formed in a spherical shape having a curvature radius R <b> 2 substantially equal to half of the inner diameter D <b> 2 of the sleeve body 2. At one end (opposite side of the sleeve main body 2), a substantially annular flange 12 is integrally connected.

  As shown in FIGS. 10 to 12, the sleeve main body 2 and the flange member 3 are configured such that the engaging claw 13 engages with the engaging hole 8 and the engaging claw 14 engages with the engaging hole 9. As a result, the flange member 3 swings, the engagement claw 13 moves along the engagement hole 8, and the engagement claw 14 moves along the engagement hole 9. The flange member 3 is adjustable in angle with respect to the sleeve body 2.

  Since other configurations are the same as those of the first embodiment, the same members are denoted by the same reference numerals and the description thereof is omitted.

  When the pipe sleeve 1 is applied to the wall 7 in accordance with a predetermined water gradient (for example, 7 °, 0 °, 3.5 °, etc.), the following procedure is followed.

  First, in the piping sleeve preparation process, as shown in FIGS. 10 to 12, the flange member 3 is appropriately swung with respect to the sleeve main body 2 to adjust the angle according to the water gradient. It is assumed that the flange portion 12 is inclined by an angle θ equal to the water gradient with respect to a plane perpendicular to the longitudinal direction (arrow L direction) of the sleeve body 2.

  For example, when the water gradient is 7 °, as shown in FIG. 10, the flange member 3 is swung to move the engagement claw 13 along the engagement hole 8 to the foremost position P1, The engaging claw 14 is moved along the engaging hole 9 to the rearmost position P2. Then, the piping sleeve 1 will be in the state in which the collar part 12 of the flange member 3 incline 7 degrees with respect to the plane orthogonal to the longitudinal direction (arrow L direction) of the sleeve main body 2. FIG. At this time, even if the engagement claws 13 and 14 are positioned at the foremost position P1 and the rearmost position P2, respectively, the engagement holes 8 and 9 are both closed from the inside by the insertion tube portion 11, so that the piping sleeve 1 It is possible to prevent the occurrence of a situation in which moisture and dust enter the inside through the engagement holes 8 and 9 from the outside of the sleeve body 2 after the construction.

  Further, when the water gradient is 0 °, as shown in FIG. 11, the flange member 3 is swung to move the engagement claw 13 along the engagement hole 8 to the rearmost position P2, The engaging claw 14 is moved along the engaging hole 9 to the foremost position P1. Then, the piping sleeve 1 is in a state in which the flange portion 12 of the flange member 3 is inclined by 0 ° with respect to a plane perpendicular to the longitudinal direction of the sleeve body 2, that is, in a state parallel to this plane. At this time, even if the engagement claws 13 and 14 are positioned at the rearmost position P2 and the foremost position P1, respectively, the engagement holes 8 and 9 are both closed from the inside by the insertion tube portion 11, so that the piping sleeve 1 It is possible to prevent the occurrence of a situation in which moisture and dust enter the inside through the engagement holes 8 and 9 from the outside of the sleeve body 2 after the construction.

  Furthermore, when the water gradient is 3.5 °, as shown in FIG. 12, the flange member 3 is swung to move the engagement claw 13 along the engagement hole 8 to the rearmost position P2. At the same time, the engaging claw 14 is moved along the engaging hole 9 to the rearmost position P2. Then, the piping sleeve 1 is in a state in which the flange portion 12 of the flange member 3 is inclined by 3.5 ° with respect to a plane perpendicular to the longitudinal direction of the sleeve body 2. At this time, even if the engaging claws 13 and 14 are positioned at the rearmost position P2, the engaging holes 8 and 9 are both closed from the inside by the insertion tube portion 11, so that moisture and dust are applied after the piping sleeve 1 is installed. It is possible to prevent the occurrence of a situation in which the toner enters the inside through the engagement holes 8 and 9 from the outside of the sleeve body 2.

  When the flange member 3 is swung in this way, the outer peripheral surface of the insertion tube portion 11 of the flange member 3 slides with respect to the inner peripheral surface of the sleeve body 2. However, as described above, the insertion cylinder portion 11 of the flange member 3 is formed in a spherical shape having a radius of curvature R2 substantially equal to half of the inner diameter D2 of the sleeve body 2, so that the water gradient is 7 °, 0 °, 3 ° In any case of 5 °, the flange member 3 can be smoothly swung.

  Next, the process proceeds to the sleeve body placement step, and the sleeve body 2 is placed on the wall 7 in the room 5 in the same manner as in the first embodiment.

  Finally, the process proceeds to the sleeve body cutting step. In the outdoor 6, the end 2 b of the sleeve body 2 protruding from the outer surface 7 c of the wall 7 is changed to the thickness D 3 of the wall 7 in the same manner as in the first embodiment. Correspondingly, it cuts off by a predetermined length.

  Here, the construction of the piping sleeve 1 is completed.

  As described above, when the piping sleeve 1 is constructed, the flange member 3 is angle-adjusted with respect to the sleeve body 2 in accordance with a predetermined water gradient (for example, 7 °, 0 °, 3.5 °, etc.). After the sleeve main body 2 is disposed on the wall 7, the pipe sleeve 1 can be applied to the wall 7 in correspondence with a predetermined water gradient by simply cutting off the end 2 b of the sleeve main body 2.

In addition, as described above, the piping sleeve 1 is composed of only two parts, that is, the sleeve main body 2 and the flange member 3, and the number of parts is small. Further, the piping sleeve 1 is simply structured such that the flange member 3 is connected to the sleeve body 2 so that the angle can be adjusted, and the structure is simple. As a result, the manufacturing cost of the piping sleeve 1 can be kept low.
[Other Embodiments of the Invention]

  In the first and second embodiments described above, when the piping sleeve 1 is applied to the wall 7, the end 2 b of the sleeve main body 2 protruding from the outer surface 7 c of the wall 7 is used as the wall 7 in the sleeve main body cutting step. A case has been described in which a predetermined length is cut off according to the thickness D3. 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.

  Moreover, although Embodiment 1 and 2 mentioned above demonstrated the piping sleeve 1 which consists of synthetic resins, the material of the piping sleeve 1 is not necessarily restricted to a synthetic resin. The present invention can be similarly applied to the piping sleeve 1 in which both or one of the sleeve main body 2 and the flange member 3 constituting the piping sleeve 1 is made of a material other than synthetic resin.

  In the first and second embodiments described above, the piping sleeve 1 in which the engagement holes 8 and 9 are formed so as to communicate with the inside and the outside of the sleeve body 2 has been described. It is not always necessary to form the sleeve body 2 so as to communicate with the inside and outside.

  In the first and second embodiments described above, the pipe sleeve 1 in which the engagement holes 8 and 9 are provided in the sleeve body 2 and the engagement claws 13 and 14 are provided in the flange member 3 has been described. However, the engaging holes 8 and 9 and the engaging claws 13 and 14 can be reversed so that the engaging claws 13 and 14 are provided in the sleeve body 2 and the engaging holes 8 and 9 can be provided in the flange member 3. It is.

  In the first and second embodiments described above, the piping sleeve 1 in which the ten cutting assisting grooves 10 are formed on the outer peripheral surface of the sleeve body 2 has been described. Of course, the number of the cutting assisting grooves 10 is as follows. The number is not limited to ten.

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

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

1 …… Piping sleeve 2 …… Sleeve body 2a …… One end (inner side)
2b: The other end (outdoor end)
3 …… Flange member 5 …… Indoor 6 …… Outdoor 7 …… Wall 7a …… Through hole 8, 9 …… engagement hole 10 …… Cutting assist groove 11 …… Insertion tube portion 12 …… Bridge portion 13, 14 ... engaging claw

Claims (5)

A piping sleeve for guiding piping from indoor to outdoor,
A cylindrical sleeve body disposed so as to pass through a wall separating the room and the outside, and the sleeve body is mounted on the indoor side end of the sleeve body in a state where the sleeve body is disposed on the wall. A flange member to be
At the end of the sleeve body, one of an engagement hole or an engagement claw is formed at the upper and lower portions in a state where the sleeve body is disposed on the wall, respectively.
In the insertion tube portion inserted into the sleeve body of the flange member, the engagement hole or the engagement claw is respectively formed in the upper portion and the lower portion in a state where the flange member is mounted on the end portion of the sleeve body. The other is formed,
At least one of the two engagement holes is a long hole extending in the longitudinal direction of the sleeve body, and the engagement claw corresponding to the long hole moves along the long hole. The piping sleeve, wherein the flange member is connected to the sleeve body so as to be adjustable in angle.   The two engagement holes are formed in the end portion of the sleeve main body, and the two engagement claws are formed in the insertion tube portion of the flange member. Item 2. The piping sleeve according to Item 1.   The flange member swings about one of the two engaging claws, and the other engaging claw is formed in the elongated hole corresponding to the other engaging claw. The piping sleeve according to claim 2, wherein an angle with respect to the sleeve body is adjusted by moving along the sleeve. Each of the two engagement holes is a long hole extending in the longitudinal direction of the sleeve body,
In the flange member, one of the two engaging claws moves along the one long hole, which is an engaging hole corresponding to the one engaging claw, and the other engaging claw. The angle with respect to the sleeve body is adjusted by moving the joint claw along the other long hole which is an engagement hole corresponding to the other engagement claw. The piping sleeve according to claim 2.   5. The sleeve main body is provided with a plurality of cutting assisting grooves along the circumferential direction of the sleeve main body at predetermined intervals in the longitudinal direction of the sleeve main body. The piping sleeve described in 1.

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