JP5408988B2 - Piping cover for corner - Google Patents

Description

  The present invention relates to pipes and wires such as refrigerant pipes and drain hoses that are led out from the interior of a house to the outer wall and arranged along the outer wall surface, such as an air conditioner (hereinafter these are collectively referred to as flexible The present invention relates to a corner piping cover for covering a corner portion (hereinafter referred to as a plane corner portion) on an outer wall surface in piping).

  Conventionally, flexible piping such as an air conditioner disposed on an outer wall of a house is a piping cover formed by combining two split cylinder-shaped divided bodies from the viewpoint of aesthetics and protection of piping. It is often covered with. Moreover, in order to avoid hitting a window, a door pocket, etc., the above-mentioned flexible piping is often bent partially and arranged on the outer wall of a house. In that case, the piping cover is configured by a straight piping cover that covers a straight portion of the piping and a corner piping cover that covers a planar corner portion of the piping.

  Here, as a conventional piping cover for a corner, one bent at 90 ° (corresponding to the case where the flat corner portion of flexible piping is bent at 90 °) or one bent at 135 ° (flexible piping) This corresponds to the case where the flat corner portion of the kind is bent at 45 °), and the bending angle is fixed and cannot be changed. For this reason, when carrying out the work of covering the flexible piping with the piping cover, it is necessary to prepare a plurality of types of corner piping covers, which may be troublesome to carry and complicated. It was.

  In addition, since the position of the outdoor unit of the air conditioner and the position of the window or the door pocket are different for each house, the angle of the plane corner portion of the piping is not always 90 ° or 45 °. Even when the pipes are bent 90 ° from the vertical direction to the horizontal direction, it may be necessary to give a slight gradient when bending in the horizontal direction so that water such as drainage can flow easily. In some cases, the corner piping cover with a bent angle cannot be used.

In view of this, some of the corner pipe covers are proposed in which the bent portion can be rotated in accordance with the shape of the flat corner portion of the flexible piping so that the bent angle can be changed. (For example, see Patent Document 1). Thereby, when performing the operation | work which covers flexible piping with a piping cover, it will be sufficient to prepare one kind of piping piping for corners, and it became possible to respond to various bending angles.
JP-A-7-208682

  However, the above-described corner piping cover described in Patent Document 1 has a rotation center axis for rotating the bent portion inside the tubular shape of the piping cover. Thus, in the configuration having the pivot center axis on the inner side of the cylindrical shape, if the bent portion is rotated so that the bending angle becomes smaller, the degree of overlap of the side wall of the outer corner in the bent portion becomes smaller, and conversely In addition, the degree of overlapping of the side walls of the inner corner in the bent portion is increased. Further, when the bending portion is rotated so that the bending angle becomes large, the overlapping degree of the side wall of the outer corner in the bending portion increases, and conversely, the overlapping degree of the side wall of the inner corner in the bending portion decreases. Become.

  Thus, in the configuration where the overlapping state of the side wall of the outer corner and the side wall of the inner corner changes inversely due to the change of the bending angle, the bending portion is rotated to any bending angle, In order to ensure that the flexible piping is always covered by the piping cover, the bent portion of the corner piping cover is formed to the length required when the side wall of the outer corner is at the minimum bending angle. Therefore, the side wall of the inner corner needs to be formed to a length required when the bending angle is maximized.

  And as a result of such a configuration, particularly when the bending angle determined by rotating the bending portion becomes a small angle, the overlapping state of the side walls of the outer corner is such that the end portions just overlap each other, The overlap of the side walls of the inner corner is too much, and a part of the overlap may protrude inside the cylinder.

  If a part of the side wall protrudes inside the cylindrical shape in this way, the space through which the flexible piping in the piping cover passes becomes narrow, and the flexibility that passes through the piping cover There is a possibility of damaging the piping, and in order to prevent such problems, it is necessary to perform work such as cutting the protruding portion of the side wall of the inner corner, which requires extra work and flexible piping. There was a problem that the efficiency of the installation work was poor.

  In addition, if the rotation center axis is inside the cylinder, the rotation center axis may protrude inside the cylinder, and this protrusion narrows the space through which the flexible piping in the piping cover is passed. In addition, there is a possibility of damaging the flexible piping passing through the piping cover.

  The present invention has been made in view of such circumstances, and the bending angle can be freely changed according to the shape of the planar corner portion of the flexible piping, and a part of the piping cover does not protrude inside. By doing so, the space through which the flexible piping in the piping cover can pass can be kept wide, and the efficiency in the installation work of the flexible piping is improved without damaging the flexible piping. An object of the present invention is to provide a corner piping cover that can be used.

In order to solve such a problem, the invention according to claim 1 is formed by combining two bent half-divided cylinder-shaped divided bodies in a corner pipe cover that covers a flat corner portion of flexible pipes. Each of the two divided bodies is composed of two divided halves in which the half-cylindrical bent ends that are bent in a substantially arc shape are connected to each other so as to be rotatable. The center of the substantially arc shape of the outer corner at the bent end portion of each half and the center of the substantially arc shape of the inner corner are located on the outer side of the side wall of the inner corner of the bent end portion and coincide with each other . The center of the substantially arc shape of the outer corner and the inner corner coincides with the rotation center axis for rotating the divided halves, and the bent ends are slidably overlapped, and the outer corner and the Inner corner Substantially by the rotation center axes coincident with the center of the arc-shaped engaging rotatably, characterized in that the concatenation of the divided halves together rotatably in.

  In addition to the invention described in claim 1, the invention described in claim 2 is such that the substantially arc shape of the bent end portions of the two divided halves has an angle of about 45 °, respectively. A corner piping cover having a rotatable range between the divided halves between 90 ° and 135 ° is provided.

In addition to the invention described in claim 1 or 2, the invention described in claim 3 is a side farther from the split surface of the divided body in the axial direction than the rotation center axis in one of the divided halves. In addition, the rotation center axis in the other half of the divided halves is set to a side closer to the split surface in the axial direction so that the rotation center axes of the two divided halves are engaged with each other. It is configured and elastically deforms the side wall of the outer corner of the bent end in one of the divided halves or elastically outward of the side wall of the outer corner of the bent end in the other of the divided halves. By deforming or elastically deforming both side walls of the two divided halves, respectively, the outer wall of the outer corner of the bent end in one of the divided halves and the other in the other of the divided halves Bent end It is configured to slidably overlap the inner wall of the side wall of the outer corner, engages the rotation center axes of the two divided halves, and the bent end of the two divided halves It is characterized by having a corner pipe cover in which the two divided halves are connected so as to be able to rotate and not come off by overlapping the side walls of the outer corners of the part so as to be slidable.

  In addition to the invention of claim 3, the invention of claim 4 has a fitting projection on the outer wall of the outer corner of the bent end of one of the divided halves, and the The other half of the split half has a fitting groove on the inner wall of the outer corner of the bent end, and engages the rotation center axes of the two split halves, and the split half By fitting the fitting protrusion on one side into the fitting groove on the other side of the split half so as to be slidable, a corner pipe cover that rotatably connects the two split halves. It is characterized by that.

According to the corner piping cover according to claim 1, the centers of the substantially arc shapes of the outer corner and the inner corner of the bent end portions of the two divided halves coincide with each other, and the outer corner and the inner corner Since the rotation center axis that is the center for rotating the two divided halves that coincide with the center of the substantially arc shape is arranged outside the side wall of the inner corner of the bent end, the divided halves are rotated. Even if it is moved, there is almost no case where a part of the side wall of the bent end protrudes inside the cylinder. Therefore, the space through which the flexible piping in the piping cover can be kept wide, and the flexible piping is not damaged by a part of the side wall of the bent end portion protruding inside the cylindrical shape. As a result, it is no longer necessary to cut the protruding portion of the side wall of the bent end portion in order to ensure space and prevent damage to the flexible piping, and the flexible piping can be installed efficiently. be able to. In addition, since the rotation center axis is not inside the cylinder, the protrusion of the rotation center axis narrows the space for the flexible piping in the piping cover or damages the flexible piping. You wo n’t get lost.

  According to the corner piping cover according to claim 2, in addition to the effect of the invention according to claim 1, each of the substantially arc shapes of the bent end portions of the two divided halves has an angle of about 45 °. When the rotatable range between the divided halves is between 90 ° and 135 °, a part of the side wall of the bent end portion does not protrude further into the cylindrical shape. As a result, the flexible piping is not damaged more and the installation work of the flexible piping can be performed more efficiently.

According to the corner piping cover according to claim 3, in addition to the effect of the invention according to claim 1 or 2, only the engagement of the rotation center shafts and the superposition of the side walls of the outer corners of the bent end portions. Thus, since the two divided halves can be connected so as to be rotatable and not detached , the corner pipe cover can be assembled easily and reliably, and the working efficiency can be improved.

  According to the corner piping cover of the fourth aspect, in addition to the effect of the invention according to the third aspect, the engagement by engaging the side walls of the outer corners of the bent end portion with the fitting protrusion as the fitting groove. Since it can be set as the engagement which has a stopper which does not come off easily by making it fit in, it can assemble a corner piping cover easily and more reliably, and can improve work efficiency further.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a corner pipe cover according to an embodiment of the present invention when the bending angle is 90 °. FIG. 2 is a perspective view showing the corner pipe cover according to the embodiment when the bending angle is 45 °. FIG. 3 is a perspective view illustrating the corner pipe cover according to the embodiment when the bending angle is 90 degrees in a state where the cover is separated into two divided bodies. FIG. 4 is a sectional view showing the corner pipe cover according to the embodiment when the bending angle is 90 ° in a state where the cover is separated into two divided bodies. FIG. 5 is a sectional view showing the corner pipe cover according to the embodiment when the bending angle is 45 ° in a state where the cover is separated into two divided bodies. FIG. 6 is a perspective view showing a state where the two divided bodies of the corner pipe cover according to the embodiment are further separated into two divided halves. FIG. 7 is a sectional view showing a state in which the two divided bodies of the corner pipe cover according to the embodiment are further separated into two divided halves. FIG. 8 is a perspective view of a divided body on the wall surface side of two divided bodies of the corner pipe cover according to the same embodiment as seen from a different angle from FIG. 3.

  As shown in FIGS. 1 to 8, the corner piping cover 10 according to an embodiment of the present invention can be led out from the inside of a house to the outer wall and disposed along the outer wall surface, for example, in an air conditioner. It is a piping cover for covering the plane corner part on the outer wall surface of flexible piping. The corner pipe cover 10 has a bent cylindrical shape having a first connection opening 11 and a second connection opening 12 which are connection parts to other pipe covers such as a straight pipe cover at both ends. It is made of plastic resin. Further, the corner pipe cover 10 is configured such that a substantially arc-shaped bent portion 13 rotates so that the bending angle R can be freely changed.

  As shown in FIGS. 3 to 5, the corner pipe cover 10 is divided into two bent half-divided cylindrical parts 14 a and 14 b that are divided with a plane substantially parallel to the outer wall surface to be provided as a split surface. Are formed by merging. In addition, bent parts 13a and 13b are formed in the divided parts 14a and 14b, respectively, and the bent parts 13a and 13b are combined to form the bent part 13. Further, one of the divided bodies constitutes a lower divided body 14a fixed to the outer wall surface of the house, and the upper divided body 14b, which is the other divided body, can be combined and separated with respect to the lower divided body 14a. Is formed. In the following description, the symbol with a indicates the lower side (wall surface side), and the symbol with b indicates the upper side (other side).

  Further, as shown in FIGS. 6 and 7, the two divided bodies 14 a and 14 b are combined with the first connection opening divided bodies 11 a and 11 b that constitute the first connection opening 11. The second connection opening divided bodies 12a and 12b, which are combined with the first divided half bodies (one of the divided half bodies) 20a and 20b, and which constitute the second connection opening 12 are provided. Each of the second divided halves (the other half of the divided halves) 30a, 30b is provided at one end.

  Further, in the first divided halves 20a and 20b, the other half of the first connecting opening divided portions 11a and 11b is opposite to the one end having the first connecting opening divided portions 11a and 11b. It has bent end portions (bent end portions) 21a and 21b, and the end portions of the first bent end portions 21a and 21b farthest from the first connection opening divided bodies 11a and 11b are the second end portions. It becomes the 1st connection opening part 28a, 28b opened for connection with the division | segmentation half bodies 30a and 30b. Further, in the second divided halves 30a and 30b, a second half-divided cylindrical shape bent in a substantially arc shape is formed at the other end opposite to the one end having the second connection opening divided bodies 12a and 12b. It has bent end portions (bent end portions) 31a and 31b, and the end portions of the second bent end portions 31a and 31b farthest from the second connection opening divided bodies 12a and 12b are the first end portions. It becomes the 2nd connection opening part 38a, 38b opened for connection with the division | segmentation half bodies 20a and 20b. The first bent end portions 21a and 21b and the second bent end portions 31a and 31b are overlapped and rotatably connected to form the bent portion divided bodies 13a and 13b. Yes.

  As shown in FIGS. 6 and 7, the center of the first arcuate shape of the first bent end portions 21a, 21b of the first divided halves 20a, 20b is the first bent end portion 21a, 21b is located outside the side walls 23a and 23b at the inner corners of the side walls on both sides of 21b, and a central axis of rotation with the second divided halves 30a and 30b is the center of this substantially arc shape. 1 rotation center axis 22a, 22b is provided. The centers of the second arcuate ends 31a and 31b of the second split halves 30a and 30b are the center of the side walls on both sides of the second bent ends 31a and 31b having a half cylinder shape. Second rotation center shafts 32a and 32b, which are located outside the side walls 33a and 33b of the inner corners, and serve as central axes of rotation with the first divided halves 20a and 20b at the center of the substantially arc shape. It has.

  Further, in the present embodiment, as shown in FIGS. 3 to 8, the outer corners of the side walls on both sides of the first bent end portions 21a and 21b of the half-divided cylindrical shape of the first divided halves 20a and 20b. On the outer walls of the side walls 24a and 24b, fitting projections 25a and 25b are formed to project. Further, the fitting projections 25a, 30b are formed on the inner walls of the side walls 34a, 34b of the outer corners of the side walls on both sides of the second bent end portions 31a, 31b of the second split half portions 30a, 30b. It has fitting grooves 35a and 35b of a predetermined length formed in accordance with 25b.

  Specifically, the fitting protrusions 25a and 25b of the present embodiment are formed at the outer corners of the first bent end portions 21a and 21b of the first divided halves 20a and 20b, as shown in FIGS. The outer wall of the side walls 24a, 24b is formed at a position in contact with the first connection openings 28a, 28b or at a position close to the first connection openings 21a, 21b, and the first divided halves 20a, 20b The second divided halves 30a and 30b are formed in an elongated shape whose longitudinal direction is substantially equal to the rotational direction Y (substantially arcuate arc direction) Y.

  Further, the fitting grooves 35a and 35b of the present embodiment are specifically sidewalls of outer corners of the second bent end portions 31a and 31b of the second divided halves 30a and 30b, as shown in FIG. Positions close to the second connection openings 38a and 38b on the inner walls of 34a and 34b are defined as one end portions 37a and 37b, from which the first divided halves 20a and 20b and the second divided halves 30a and 30b are rotated. An elongated groove is formed in a direction along the moving direction (circular arc direction of a substantially arc shape) Y. Then, the rotatable connection between the first divided halves 20a, 20b and the second divided halves 30a, 30b in the present embodiment is as follows. First, as shown in FIGS. , 20b, the first rotation center shafts 22a, 22b of the second divided half bodies 30a, 30b and the second rotation center shafts 32a, 32b of the second divided half bodies 30a, 30b in the axial direction X. In the axial direction X, the first rotation center shafts 22a and 22b and the second rotation center shafts 32a and 32b can be rotated by fitting or the like on the side closer to the split surface of the divided bodies 14a and 14b. Configured to match. Specifically, the first rotation center shafts 22a and 22b of the present embodiment are formed in a cylindrical protrusion shape, and the second rotation center shafts 32a and 32b of the present embodiment are a first protrusion of a columnar protrusion shape. The central shafts 22a and 22b are formed in a corresponding round hole shape so as to be fitted, and the two are fitted in the direction of the axial direction X so as to be rotatable.

  Further, as shown in FIGS. 3 to 8, the side walls 24a and 24b of the outer corners of the first bent ends 21a and 21b of the first divided halves 20a and 20b are elastically inward using the elastic force of plastic. In addition, the side walls 34a and 34b of the outer corners of the second bent end portions 31a and 31b of the second divided halves 30a and 30b are elastically deformed outward using the elastic force of the plastic, so that the first divided By fitting the fitting protrusions 25a, 25b of the half bodies 20a, 20b into the fitting grooves 35a, 35b of the second divided half bodies 30a, 30b, the first divided half bodies 20a, 20b and the second divided half bodies 30a and 30b are connected.

  Here, the fitting grooves 35a and 35b are fitted to the fitting protrusions 25a and 25b to have a predetermined length (in this embodiment, a length in which the rotatable range between the divided halves is 90 ° to 135 °). The first bent end portions 21a and 21b and the second bent end portions 31a and 31b can be slidably overlapped with each other. It is like that.

  Further, as shown in FIG. 6, the fitting grooves 35a and 35b have end portions 37a and 37b close to the second connection openings 38a and 38b, and the second ends in the rotation direction Y between the divided halves. It is formed at a position slightly inside from the connection openings 38a and 38b. Then, the fitting protrusions 25a and 25b are fitted into the fitting grooves 35a and 35b to reduce the bending angle R between the divided halves (in this embodiment, the bending angle R is 135 ° → 90 °). 1, 3, 4, and 8, the fitting protrusions 25 a and 25 b are connected to the one end portion at a set minimum angle (90 ° in the present embodiment) as shown in FIGS. It is configured not to rotate in the direction in which the bending angle R becomes smaller by contacting the walls of 37a and 37b. That is, the one end portions 37a and 37b are formed to be rotation stoppers that restrict the rotation in the direction in which the bending angle R between the divided halves decreases.

  Also, as shown in FIGS. 1 to 8, the outer wall of the first split halves 20a, 20b is located closest to the first connection opening split bodies 11a, 11b in the first bent end portions 21a, 21b. (In this embodiment, all the outer walls including the outer walls of the side walls 23a and 23b of the inner corner and the outer walls of the side walls 24a and 24b of the outer corner) are walls facing the first connecting openings 28a and 28b. Step portions 27a and 27b are formed. Then, the fitting protrusions 25a and 25b are fitted into the fitting grooves 35a and 35b to increase the bending angle R between the divided halves (in this embodiment, the bending angle R is changed from 90 ° to 135 °). 2 and 5, the second connecting openings 38a and 38b are set to the stepped portions 27a and 27b at a set maximum angle (135 ° in the present embodiment) as shown in FIGS. It is comprised so that it may contact | abut to the wall of this, and it may not rotate in the direction where the bending angle R becomes large further. That is, the step portions 27a and 27b are formed to be rotation stoppers that restrict rotation in the direction in which the bending angle R between the divided halves increases.

  Here, the side walls 23a, 23b of the inner corners and the side walls 24a, 24b of the outer corners of the first bent ends 21a, 21b of the first divided halves 20a, 20b are the first rotation center shafts 22a, 22b. It is formed in a concentric circular arc shape with a center. Further, the inner corner side walls 33a, 33b and the outer corner side walls 34a, 34b of the second bent end portions 31a, 31b of the second divided halves 30a, 30b are connected to the second rotation center shafts 32a, 32b. It is formed in a concentric circular arc shape with a center. The side walls 23a and 23b of the inner corners of the first bent end portions 21a and 21b, the side walls 33a and 33b of the inner corners of the second bent end portions 31a and 31b, and the side wall 24a of the outer corner of the first bent end portions 21a and 21b. , 24b and the side walls 34a, 34b of the outer corners of the second bent end portions 31a, 31b are formed to have substantially the same diameter.

  As described above, the first turning center shafts 22a, 22b of the first bent end portions 21a, 21b and the second turning center shafts 32a, 32b of the second bent end portions 31a, 31b are the side walls 23a of the inner corners. , 23b, 33a, and 33b, respectively, and the side walls 23a, 23b, 24a, 24b, 33a, 33b, 34a, and 34b of the inner corner and the outer corner are formed concentrically. When the inner corner side walls 23a, 23b, 33a, 33b are formed in a substantially arc shape having substantially the same diameter, and the outer corner side walls 24a, 24b, 34a, 34b are formed in a substantially arc shape having substantially the same diameter, First, the side walls are not caught, and the first bent end portions 21a and 21b and the second bent end portions 31a and 31b can be smoothly rotated.

  Further, with such a configuration, the first bent end portions 21a and 21b and the second bent end portions 31a and 31b are rotated so that the bending angle R becomes smaller, and the side walls 24a and 24b of the outer corners are rotated. When the overlapping degree of 34a, 34b becomes small, the overlapping degree of the side walls 23a, 23b, 33a, 33b of the inner corners also becomes small, and the first bent end portions 21a, 21b and the second bent part so that the bending angle R becomes large. When the end portions 31a and 31b are rotated to increase the overlapping degree of the outer corner side walls 24a, 24b, 34a, and 34b, the overlapping degree of the inner corner side walls 23a, 23b, 33a, and 33b also increases. Thus, the overlapping state of the side wall 24a, 24b, 34a, 34b of the outer corner and the side wall 23a, 23b, 33a, 33b of the inner corner is the same. It will change in direction.

  Thus, the lengths of the outer corner side walls 24a, 24b, 34a, 34b and the inner corner side walls 23a, 23b, 33a, 33b at the bent end portions 21a, 21b, 31a, 31b are set to the minimum angle of the bending angle R. It is only necessary to form the length according to the angle at the time, and only the overlapping state of the side walls 23a, 23b, 33a, 33b of the inner corner does not overlap. Therefore, a part of the overlapped side wall does not protrude inside the cylindrical shape. Therefore, the space through which the flexible piping in the piping cover can be kept wide, and the flexible piping is not damaged by a part of the side wall of the bent end portion protruding inside the cylindrical shape. . As a result, it is no longer necessary to cut the protruding portion of the side wall of the bent end portion in order to secure the space and prevent damage to the flexible piping, and the flexible piping can be installed efficiently. Can do.

  Further, since the rotation center shafts 22a, 22b, 32a, and 32b are outside the cylindrical shape, the rotation center shaft does not protrude to the inside of the cylindrical shape, thereby allowing flexible piping in the piping cover. The space through which the pipes pass is not narrowed, and the flexible pipes in the pipe cover are not damaged.

  In the present embodiment, the substantially arcuate shapes at the first bent end portions 21a, 21b of the first divided halves 20a, 20b and the second bent end portions 31a, 31b of the second divided halves 30a, 30b are about 45, respectively. It is formed at an angle of °, and the length of the fitting grooves 35a and 35b is also set in accordance with this. Thereby, the rotatable range between the first divided halves 20a and 20b and the second divided halves 30a and 30b is 90 ° to 135 ° (that is, 45 ° to 90 ° of the flexible piping). Corresponding to the flat corner of the). Here, since the rotatable range of 90 ° to 135 ° is a bending angle that is normally used in the arrangement of flexible piping, it is practically sufficient to cover this rotatable range. . In addition, by setting the rotation range, it is possible to prevent the side wall from being bent even at a bending angle of 90 ° where the overlapping end portions are the smallest and a bending angle of 135 ° where the overlapping end portions are the largest. Since the portion can be configured so that the portion does not protrude inward at all, the space through which the flexible pipes in the pipe cover can be kept is always wide, and the damage to the flexible pipes can be most prevented. Is.

  In addition, stopper protrusions 26a, 26b, 36a, 36b for positioning other pipe covers are formed in the vicinity of the first connection opening divided bodies 11a, 11b and the second connection opening divided bodies 12a, 12b. ing. The stopper projections 26a, 26b, 36a, 36b are in contact with the end portions of the other pipe covers when the other pipe covers are inserted into the connection openings, and determine the positions of the other pipe covers.

  Further, the lower divided body 14a and the upper divided body 14b of this embodiment are engaged with each other by fitting or the like, and are fixed by screws or the like (not shown) inserted through the plurality of screw holes N1. ing. Further, the lower divided body 14a of the present embodiment is attached and fixed to an outer wall of a house or the like with a screw or the like (not shown) inserted through a screw hole N2 arranged on the wall surface side.

  Further, in the present embodiment, when the side walls 24a, 24b, 34a, 34b of the outer corners of the bent end portions 21a, 21b, 31a, 31b are overlapped, the side walls 24a, 24b, 34a, 34b is elastically deformed in a necessary direction, and fitting protrusions 25a and 25b formed on the side walls 24a and 24b are fitted into fitting grooves 35a and 35b formed on the side walls 34a and 34b. Therefore, when the side walls 24a, 24b, 34a, 34b return from the elastic deformation and return to the original state after the two have been fitted, the fitting protrusions 25a, 25b and the fitting grooves 35a, 35b have a predetermined pressure. (The side walls 24a and 24b and the side walls 34a and 34b may also be pressed with a predetermined pressure), and a predetermined frictional force is generated when sliding. Therefore, when the bending angle R between the divided halves 20a, 30a (20b, 30b) is changed, the bending angle R can be held at any bending angle R by the above-described frictional force. It can be adjusted steplessly including adjustment.

  Incidentally, like the pipe cover described in Patent Document 1 described above, a pivot center axis for pivoting the bent portion is provided inside the tubular shape of the pipe cover. When the two members that are bent are connected, the two members are not connected so as to generate a frictional force by applying pressure to each other. Therefore, even if trying to hold the angle at an arbitrary bending angle as in this embodiment, the angle moves immediately, and the angle cannot be fixed until the piping cover is fixed to the wall surface with screws or the like. The problem of inefficiency arises.

  In addition, although illustration is abbreviate | omitted, the angle scale which shows the bending angle R may be provided in the side wall 24a, 24b, 34a, 34b of the bending edge part 21a, 21b, 31a, 31b. As the angle scale, the bending angle R is indicated by a numeral or the like, or the protrusions and holes that fit between the bent ends are locked to rotate the bent ends to obtain the bending angle R. What is to be determined.

  As described above, according to the corner piping cover according to the present embodiment, the rotation center axis that is the center when the two divided halves are rotated to each other is on the outside of the side wall of the inner corner of the bent portion. Because of the arrangement, even when the divided halves are rotated, there is almost no case where a part of the side wall of the bent portion protrudes inside the cylindrical shape. Therefore, the space through which the flexible piping in the piping cover can be kept wide, and the flexible piping is not damaged by a part of the side wall of the bent end portion protruding inside the cylindrical shape. As a result, it is no longer necessary to cut the protruding portion of the side wall of the bent end portion in order to ensure space and prevent damage to the flexible piping, and the flexible piping can be installed efficiently. be able to. In addition, since the rotation center axis is not inside the cylinder, the protrusion of the rotation center axis narrows the space for the flexible piping in the piping cover or damages the flexible piping. You wo n’t get lost.

  Further, according to the corner piping cover according to the present embodiment, in addition to the above effects, the substantially arc shapes of the bent portions of the two divided halves each have an angle of about 45 °, and the rotation between the divided halves When the possible range is between 90 ° and 135 °, a part of the side wall of the bent portion does not protrude further into the cylindrical shape. As a result, the flexible piping is not damaged more and the installation work of the flexible piping can be performed more efficiently.

  Further, according to the corner piping cover according to the present embodiment, in addition to the above effects, the two divided halves can be formed only by engaging the rotation center axes and overlapping the side walls of the outer corners of the bent end portions. Since it can connect so that rotation is possible, the assembly of the corner piping cover can be performed easily and reliably, and work efficiency can be improved.

  Further, according to the corner piping cover according to the present embodiment, in addition to the above-described effect, the engagement by the overlapping of the side walls of the outer corners of the bent end portions is fitted into the fitting groove. Therefore, the corner pipe cover can be assembled easily and more reliably, and the working efficiency can be further improved.

  The embodiment of the present invention described above is described for facilitating understanding of the present invention, and is not described for limiting the present invention.

  For example, in the above-described embodiment, the fitting protrusion is provided on the outer wall of the outer corner of the bent end in one of the divided halves and the inner wall of the outer corner of the bent end in the other of the divided halves is fitted. It has a mating groove and engages the rotation center axes in a predetermined direction, and allows the divided halves to rotate by fitting the fitting protrusions slidably into the fitting grooves. Although it connected, it is not restricted to this, You may connect the division | segmentation half bodies so that rotation is possible by another structure. As an example, the rotation center axis in one of the divided halves is set to the side far from the split surface of the divided body in the axial direction, and the rotation center axis in the other half of the divided halves is divided in the axial direction. The rotating central axes are engaged with each other on the side closer to the surface, and the outer wall of the outer corner of the bent end on one side of the split half and the outer corner of the bent end on the other side of the split half There is a case where the divided halves are connected to each other so as to be pivotable by pressing the inner walls of the side walls against each other by pressure caused by an elastic force and slidably overlapping them. In this case, it is preferable to form each rotation center axis longer in order to maintain the connection stability.

  Further, in the above-described embodiment, the fitting protrusion formed on the outer wall of the outer corner of the bent end of one of the divided halves (first divided half) is connected to the other half (second divided half). When fitting into the fitting groove formed in the inner wall of the side wall of the outer corner of the bent end portion of the half body), both were elastically deformed and fitted, but this is not a limitation. The side wall of the outer corner of the bent end in one of the divided halves (first divided half) on which the fitting protrusion is formed is elastically deformed inward, or the other of the divided halves on which the fitting groove is formed. The side wall of the outer corner of the bent end portion in the (second divided half) may be fitted with only one elastic deformation of either one.

  In the above-described embodiment, a pipe cover that covers a drain hose such as an air conditioner has been described as an example. However, the present invention is not limited to this, and for example, a pipe cover that covers a hot water supply pipe or an electrical wiring is used. It can be applied to various piping covers such as a covering wiring cover.

It is a perspective view which shows when the bending angle of the corner piping cover which concerns on one Embodiment of this invention is 90 degrees. It is a perspective view which shows when the bending angle of the corner piping cover which concerns on the same embodiment is 45 degrees. It is a perspective view which shows when a bending angle is made into 90 degrees in the state which isolate | separated the corner piping cover which concerns on the same embodiment into two division bodies. It is a sectional view which shows when a bending angle is 90 degrees in the state which isolate | separated the corner piping cover which concerns on the same embodiment into two division bodies. It is a sectional view which shows when a bending angle is 45 degrees in the state which isolate | separated the corner piping cover which concerns on the same embodiment into two division bodies. It is a perspective view which shows the state which isolate | separated the two division body of the corner piping cover which concerns on the same embodiment into two division half bodies. It is a sectional view which shows the state which isolate | separated two division bodies of the corner piping cover which concerns on the same embodiment into two division half bodies. It is the perspective view which looked at the division body by the side of a wall surface from two division bodies of the piping cover for corners which concerns on the same embodiment from the angle different from FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Corner piping cover 11 1st connection opening part 11a, 11b 1st connection opening part division body 12 2nd connection opening part 12a, 12b 2nd connection opening part division body 13 Bending part 13a, 13b Bending part division | segmentation Body 14a Lower split body (split body)
14b Upper divided body (divided body)
20a, 20b first divided half (one of divided half and divided half)
21a, 21b First bent end (bent end)
22a, 22b First rotation center axis (rotation center axis)
23a, 23b Side wall of inner corner of first bent end 24a, 24b Side wall of outer corner of first bent end 25a, 25b Fitting projection 26a, 26b, 36a, 36b Stopper projection 27a, 27b Stepped portion (rotation stopper) )
28a, 28b 1st connection opening part 30a, 30b 2nd division | segmentation half (The other of a division | segmentation half and a division | segmentation half)
31a, 31b Second bent end (bent end)
32a, 32b Second rotation center axis (rotation center axis)
33a, 33b Side wall of inner corner of second bent end 34a, 34b Side wall of outer corner of second bent end 35a, 35b Fitting groove 37a, 37b One end of fitting groove (rotation stopper)
38a, 38b Second connection opening N1, N2 Screw hole R Bending angle X Axis direction of rotation center axis Y Rotation direction (circular arc direction of substantially arc shape)

Claims (4)

In the corner piping cover that covers the flat corner portion of flexible piping,
It is formed by combining two bent half-divided cylinders,
Each of the two divided bodies is composed of two divided halves in which the bent end portions of a half-cylindrical cylinder bent in a substantially arc shape are connected to each other so as to be rotatable ,
The center of the substantially arc shape of the outer corner and the center of the substantially arc shape of the inner corner at the bent end of each of the two divided halves are located outside the side wall of the inner corner of the bent end and coincide with each other. And
The center of the substantially arc shape of the outer corner and the inner corner coincides with the rotation center axis for rotating the divided halves, and the bent ends are slidably overlapped, and the outer corner and The corner piping cover characterized in that the divided halves are pivotally connected by pivotally engaging the pivot center axes that coincide with the center of the substantially arc shape of the inner corner. .   The substantially circular arc shapes of the bent end portions of the two divided halves each have an angle of about 45 °, and the rotatable range between the divided halves is between 90 ° and 135 °. The corner piping cover according to claim 1, wherein The rotation center axis in one of the divided halves is on the side farther from the split surface of the divided body in the axial direction, and the rotation center axis in the other half of the divided half is in the axial direction While being configured to engage the rotation center axes of the two divided halves on the side closer to the split surface,
The side wall of the outer corner of the bent end in one of the divided halves is elastically deformed inward, the side wall of the outer corner of the bent end in the other of the divided halves is elastically deformed outward, or 2 By elastically deforming both side walls of each of the divided halves, the outer wall of the side wall of the bent end in one of the divided halves and the outer corner of the bent end in the other of the divided halves Is configured to slidably overlap with the inner wall of the side wall,
The two split halves are engaged with each other with the rotation center axes and the side walls of the outer corners of the bent ends of the two split halves are slidably overlapped with each other. The corner piping cover according to claim 1 or 2, wherein the halves are connected so as to be rotatable and not detached . There is a fitting protrusion on the outer wall of the outer corner of the bent end in one of the divided halves, and the fitting groove in the inner wall of the outer corner of the bent end in the other of the divided halves Have
The rotation center axes of the two divided halves are engaged with each other, and the fitting protrusion on one of the divided halves is slidably fitted into the fitting groove on the other of the divided halves. The corner piping cover according to claim 3, wherein the two divided halves are connected so as to be rotatable.

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