JP6529893B2 - Flexure protection cover and unit body thereof - Google Patents

Description

The present invention relates to a bent cylindrical protection part protective cover for forming an arrangement path of wiring and piping members which are internally bent , and more specifically, four or more even numbers of the same shape which is a half bent cylindrical shape. It is related with the bending part protection cover of the structure divided | segmented in both cross sectional view and vertical cross sectional view by assembling this unit body, and its unit body.

  The refrigerant pipe of the air conditioner is protected by being piped in a cylindrical protective cover, and the drainage pipe that discharges drainage from the inside of the building to the outside also has an aesthetic appearance without matching the color with the building wall if it is an exposed pipe. In order to prevent the damage of the refrigerant pipe, a special bent protection cover having a bent cylindrical shape is used in the bent portion of the refrigerant pipe or the drain pipe.

  In the case of a bent pipe, in most cases the case of 45 ° or 90 °, the conventional bent portion protective cover is divided into two only in a cross-sectional view orthogonal to the pipe direction so that a split surface appears on the side, It is the structure which assembles | assembles two divided members divided | segmented. Therefore, since the bent portion protective cover of this configuration is divided into two on the inside and the outside of the bent portion, the three-dimensional shape of the two divided members is significantly different, and therefore, it is bulky during storage or transportation of the divided members There was a problem that.

  On the other hand, Patent Document 1 has a configuration in which a total of four divided bodies are assembled by being divided into two in both the cross-sectional view orthogonal to the piping direction and the longitudinal cross-sectional view along the piping direction. An adjustable angle bendable protective cover is disclosed. However, in this bent portion protection cover, the shapes of a total of four divided bodies are all different, and each divided body divided into two in a cross sectional view is two inserted through the screw insertion holes provided in one divided body In addition to being integrally connected via a screw, each divided body divided into two in a longitudinal cross-sectional view is configured to be hingedly connected inside the bend, the structure of each divided body is complicated, and the field In the above, there is a problem that the working efficiency of the piping is deteriorated because the divided bodies can not be connected immediately.

Unexamined-Japanese-Patent No. 2010-144863

  An object of the present invention is to provide a bent portion protective cover formed in a bent cylindrical shape by assembling four or more even number of unit bodies of the same shape by engagement only.

The invention according to claim 1 for solving the above-mentioned problems is a bent cylindrical protective cover for forming a disposition path of wiring and piping members which are bent in the inside , wherein
A plurality of assembly divisions in the form of a bent cylinder in which half-bent cylinder-shaped units of the same shape are fitted and assembled together as a pair;
At both ends along the piping direction of the assembly segment, an engagement connection portion is formed which enables engagement and connection with another assembly segment,
The wiring / pipe material is internally disposed by engaging and connecting the connection-side ends of the plurality of assembly divisions with the split surfaces of the plurality of assembly divisions aligned. It is characterized in that a path is formed.

  According to the invention of claim 1, the unit body is obtained by dividing the bending cylindrical body into two in a cross sectional view to obtain a pair of unit bodies having the same shape and having a half bending cylindrical shape, The divided end surface is formed with an engaging portion that enables assembly of the pair of unit bodies. When a pair of unit bodies are assembled integrally via the engaging part formed in the division end face, it becomes an assembly division in the shape of a bent cylinder, and the axial center of the assembly division is bent or bent. Because of this, the axial centers at both end faces of the assembly division body have a predetermined bending angle (θ). Engaging and connecting parts for connecting the two assembly divisions along the direction of arrangement of the wiring and piping members are formed on portions of both end surfaces of the assembly divisions, and a plurality of assembly divisions are formed. If it connects along the said arrangement direction via the said engagement connection part, it will become the bending part protection cover which made the bending cylindrical shape. The bending angle of the axial center of the bending portion protection cover is a value (N × θ) obtained by multiplying the bending angle (θ) of one assembly division body by the number of coupling (N) of the assembly division body.

  Thus, the bending protection cover according to the invention of claim 1 assembles a pair of half-bent cylindrical units into a bent cylindrical assembly divided body, and a plurality of sets of assembly divided bodies are wired. · Bending angle (N x θ) obtained by multiplying the bending angle (θ) of one assembly division body by the number of couplings (N) of the assembly division body by engaging and connecting along the direction of arrangement of piping members The split surface of the assembled split body can be obtained only by assembling four or more even-numbered unit bodies of the same shape, with the bend portion protective cover existing inside and outside with respect to the bending direction. Thus, the bending protection cover according to the invention of claim 1 does not use any screw which is a connector, and the circumferential direction and axial direction of the same-shaped unit body having a half bending cylindrical shape. Since it is formed only by fitting assembly parts formed at both ends of each of the two and assembly or connection using the engaging connection part, the same unit body as necessary at the time of assembly Since the necessity of selecting different members is eliminated only by performing the reverse arrangement of the above, the assembly can be performed quickly without error. In addition, when storing and transporting a large number of unit bodies, by stacking a large number of half-bent tubular body units, it is possible to store them in a box without bulking, thereby facilitating storage and transport of many unit bodies. . Also, at the time of assembly of the unit bodies, while taking out a large number of stacked unit bodies, by inverting as necessary, four or more even number of unit bodies are assembled more rapidly, and a bent cylindrical shape is obtained. It can be used as a bent portion protection cover.

  According to the invention of claim 2, in the invention according to claim 1, the ends of the straight wiring and piping material protective cover are provided at both ends along the piping direction in the state where the plurality of assembled divided bodies are connected to each other. It is characterized in that connection ports are provided to which the sections are interpolated and connected.

  According to the invention of claim 2, the end of the straight protective cover for protecting the straight portion of the wiring / pipe material is connected to the both ends of the bent portion protective cover for protecting the bent portion of the wiring / pipe material By inserting into the mouth, the bend protection cover and the straight protection cover are connected.

  The invention of claim 3 is characterized in that, in the invention of claim 2, connection ports are respectively formed at both end portions along the piping direction of each assembled divided body.

  According to the invention of claim 3, since connection ports are individually formed at both ends of each assembly division body, a plurality of assembly division bodies are formed regardless of the number of connection of the assembly division bodies. A connecting port is always formed on both ends of the bent portion protection cover, which is connected to each other, and protection of the bent portion of the wiring / pipe material for performing bent piping can be performed without any problem.

  According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the inner peripheral surface of the connection port of each assembly division body can be inserted into the end portion of the straight wire / pipe material protective cover. It is characterized in that the axial center is formed in a linear shape in a longitudinal sectional view so as to correspond to the outer peripheral surface of the linear cylinder having a linear shape.

  According to the invention of claim 4, since the inner peripheral surface of the connection port of each assembly division body is formed like the inner peripheral surface of the straight cylindrical body having a linear axis, straight wiring and piping The end portion of the material protection cover can be inserted, and the work of protecting the wiring and piping material by the protection cover can be performed without any problem.

  In the invention according to claim 5, in the invention according to any one of claims 1 to 4, the engaging and connecting portion is externally provided on one end face of the unit along the disposition direction of the wiring and piping material. The engagement of another unit body at a position obliquely facing the formation position of the engagement piece on the formed arc-like engagement projection and the inner circumferential surface of the other end face of the unit body The projection is characterized in that it is formed by an arc-shaped engagement groove which can be engaged.

  According to the invention of claim 5, in a state in which a pair of unit bodies are assembled into an assembled divided body, each of the engagement projecting pieces and each engagement groove formed on both end surfaces of the assembled divided body are: When connecting a plurality of assembly divisions, which are arranged opposite to each other at a position where the phase along the circumferential direction is different by 180 °, one of the two assembly divisions coupled to each other may be engaged. Since the piece and the other engagement groove are arranged at the same position along the circumferential direction, the engagement and connection of the assembly divisions become reliable and the connection operation for the engagement and connection becomes easy.

  According to the invention of claim 6, according to the invention of any one of claims 1 to 5, the split surface of the assembly division body formed by assembling the pair of unit bodies is linear, and the other set is In a state in which the split segments are engaged with and connected to each other, each split surface of each assembly segment is characterized by being continuous and linear.

  Since the split surfaces of the assembly division body are arranged inside and outside in the bending direction, they can not be seen from the side, and in the invention of claim 6, the split surfaces are linear and are connected to each other. Since each split surface of the assembly split body is a continuous straight line, only split planes disposed on the outside in the bending direction are visible, but each split surface of each assembly split body connected to each other Because it is straight and continuous, it looks good.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein at both end portions in the circumferential direction of the unit body, a fitting assembly convex portion capable of fitting and assembling each other, and a fitting assembly The recessed portions are characterized in that they are disposed point-symmetrically with respect to the middle point of both the entire length and width of the entire fitting assembly.

  According to the invention of claim 7, at the both end portions in the circumferential direction of the unit body, a fitting assembly convex portion capable of fitting and assembling each other, and a fitting assembly concave portion are the entire fitting assembly portion Since one pair of unit bodies are assembled in a point symmetrical manner with respect to the middle point of both the entire length and the width of one of the unit bodies, one of the pair of unit bodies arranged identically is used to form an assembly divided body. In order to assemble in a 180 ° inverted arrangement state, one fitting assembly convex portion of the pair of units is in a relationship of fitting in the other fitting assembly concave portion, and a pair of half bent cylindrical shapes Both ends of the unit body in the circumferential direction are fitted to each other, and assembled into a bent cylindrical assembly divided body. In addition, even if a large number of half-bent cylindrical units are slightly deformed during storage and transport, the essential necessary shape can be obtained by assembling a pair of unit bodies into a bent cylinder as described above. There is also an advantage to be restored.

According to the invention of claim 8, there is formed a connection path for the wiring / pipe material bending inside at an angle of 90 ° or 45 °, and a straight wiring / pipe material protection cover is connected to both ends. Part protective cover,
A united body of the same shape having a half-bent cylindrical shape is assembled to each other as a pair to form an assembly divided body having a curved cylindrical shape,
The bending portion protection cover is formed by connecting a plurality of the assembly division bodies by the number of connections such that the bending angle of the assembly division body is 90 ° or 45 ° by multiplying the connection number. It is characterized by

  According to the invention of claim 8, the bending angle of the assembly divided body is determined such that the angle obtained by multiplying the number of connection of the assembly divided body by the bending angle is 90 ° or 45 °. Therefore, 22.5 degrees or 15 degrees is mentioned as a suitable example of the bending angle of an assembly division body.

The invention according to claim 9 is a unit constituting a bent cylindrical protective cover for forming an arrangement path of wiring and piping members which are internally bent ,
The unit body has a half-bent cylindrical shape, and a pair of unit bodies of the same shape are fitted and assembled in a bent cylindrical shape to form an assembly division body, and a plurality of assembly division bodies are wiring -By being engaged and coupled along the direction of arrangement of the piping material, a bent cylindrical protective cover is formed.
The unit body is formed at each end portion in the circumferential direction with a fitting assembly portion to be an assembly divided body by fitting and assembling a pair of unit bodies, and the both end portions in the disposition direction In addition, an engaging connection portion is formed which is engaged with and connected to another assembly division unit disposed along the arrangement direction.

The invention according to claim 9 defines a unit body constituting a bent cylindrical protection section for forming an arrangement path of wiring and piping members bent inside, and a pair of unit bodies By assembling with the fitting assembly portions formed at both end portions in the circumferential direction, a bent cylindrical assembly division body is formed, and a plurality of assembly division bodies are connected via the engagement connection portion to the wiring / pipe material By connecting along the arrangement direction of (1), a bending cylindrical protective cover having a bending angle obtained by multiplying the bending angle of the assembly divided body by the number of connections is formed.

  According to the present invention, a pair of half-bent tubular units are assembled into a bent tubular assembly divided body, and a plurality of sets of assembly split bodies are engaged along the wiring / pipe arrangement direction. By combining and connecting, it has a bending angle (N × θ) obtained by multiplying the bending angle (θ) of one assembly division body by the number of couplings (N) of the assembly division body. The fractured surface is obtained only by assembling four or more even number of unit bodies of the same shape, with the bending portion protective cover existing inside and outside with respect to the bending direction. Therefore, when assembling an even number of four or more unit bodies, a reverse arrangement of a specific unit body is performed, and using the engagement structure, the assembly in the circumferential direction of a pair of unit bodies, and a plurality of sets Since the target bent portion protective cover can be formed only by connecting in the direction of arrangement of the wiring / pipe material of the attached split body, assembly of four or more even number of unit bodies is possible quickly and without error. It becomes.

  In addition, when storing and transporting a large number of units, it is possible to stack a large number of half-bent tubular units, so that they can be accommodated in boxes without bulking, and storage and transportation of a large number of units are possible. It becomes easy.

A bend of 45 ° of the refrigerant pipe P is a front view of a state of covering at the bent portion the protective cover C ₁ according to the present invention. It is a perspective view similarly. In (a) and (b), a total of four unit bodies A ₁ a, A ₁ b, A ₂ a, A ₂ constituting a bending portion protection cover C ₁ that covers and protects the bending portion of the refrigerant pipe P, respectively. It is a perspective view of the decomposition | disassembly state of b, and an assembly | attachment state. (A), (b) is a perspective view of the unit body A ₁ a constituting the bent portion protective cover _{C 1 (A 1 b, A} 2 a, A 2 b) from different directions. Unit body _{A 1 a (A 1 b,} A 2 a, A 2 b) of the circumferential direction is formed at one end portion along the fitting assembly protrusions 2a, 2b and the fitting assembly recesses 3a, 3b In order to demonstrate the arrangement relationship with, it is the partial expanded view which looked at the said edge part from inner side. Unit bodies A ₁ b, A ₂ b (A ₁ a, A ₂ a) that constitute the assembly split body B in order to connect the plurality of assembly split bodies B along the disposition direction of the refrigerant pipe P FIG. 16 is a schematic partial development view for describing an engagement structure between a semicircular arc-shaped engagement protrusion 21 and an engagement groove 22 formed at both end portions along the arrangement direction of the second embodiment. A diagram showing that a pair of the unit body A ₁ a of the same shape in which the half bent cylindrical, A ₁ b assembled assembly divided body bent cylindrical shape with B of is formed, (a) shows the 3B is a perspective view in which a pair of units A ₁ a and A ₁ b are arranged in the same direction, and (b) is an opposing arrangement in which one of the units A ₁ a is inverted by 180 ° for assembly. a the perspective view, a perspective view of (c), a pair of the unit body a ₁ a, a ₁ b is the assembly split body B assembled. (A), (b) is a perspective view of the front and rear assembly showing a pair of the unit body A ₁ a, the engagement structure of the circumferential direction of the end portion of A ₁ b mainly respectively. It is a perspective view of the separated state before connection mainly showing the structure of the engagement connection part of two assembly division bodies B. FIG. Likewise is a perspective view of a state where a bending portion protective cover C ₁ is connected. Is a side view of the bent portion the protective cover C _1. (A), (b) is a partially enlarged cross-sectional view of the X ₁ -X ₁ line, and X ₂ -X ₂ line in FIG. 11 that each omitted portion except for the engaging portion. (A), (b) is a partially enlarged cross-sectional view of a Y ₁ -Y ₁ line, and Y ₂ -Y ₂ lines of FIG. 11, respectively. A bend of 90 ° of the refrigerant pipe P is a front view of a state of covering at the bent portion protective cover C ₂ according to the present invention. It is a perspective view of a state where many unit bodies A were piled up.

  Hereinafter, the present invention will be described in more detail by way of the best examples.

Bent portions protective cover C ₁ shown in FIGS. 1 to 3 is a cover that covers and protects the bent portion of the refrigerant pipe P is a wiring and piping material, two assembly divided body in which the bent cylindrical It formed a B linked along the direction of arrangement of the refrigerant pipes P, divided body B with the set is half bent cylindrical and the one-to-one sets of the unit body a ₁ a, bending cylinder and a ₁ b It is assembled and formed in shape. As a result, the bent portion the protective cover C ₁ is a half bent cylindrical and the unit body A which is a minimum unit member, or assembled along both the circumferential direction, and the axial direction itself, or by coupling Since it forms, the said unit body A becomes a basic member.

First, description will be given of a configuration of a minimum unit member and is a unit body A to form the bent portion protective cover C _1, then, the pairs of the unit body _{A 1 a, A 1 b (} A 2 a, A 2 b) by assembling in the circumferential direction, and by connecting the two assembly divisions B along the direction of the bending axis J ₀ (see FIG. 11) for the bent portion protective cover C ₁ is formed it will be described. Here, with regard to the sign of the unit body, in the case where general description is made without considering “fitting assembly” or “engagement connection” of the unit body, or specifying the arrangement position, “ When using the basic code of A "and considering the arrangement position of the units and considering" fitting assembly "or" engagement connection "of the units, the arrangement position is to identify, using _{"a 1 a, a 1 b,} a 2 a, a 2 b " the code, including the location of. In addition, "bending" in the present specification is used as a concept including not only "a bent shape" but also "a bent shape".

The unit body A is an injection-molded product of resin, and as shown in FIGS. 3 to 7, each inward and outward bent portion of a bent cylinder having a bent angle (θ) is symmetrically divided into two, A pair of unit bodies A ₁ a, a pair of unit bodies A ₁ a, at both ends in the circumferential direction of the unit body 1 of a half-bent cylindrical unit body 1 having a shape including the bending cylinder center divided into two by a plane including the bending axis J _{0 a 1 b (a 2 a,} a 2 b) fitting assembly protrusion 2a for assembling the bent cylindrical and the 2b (4a, 4b), the fitting assembly recesses 3a, 3b (5a, 5b) and There are formed alternately along the direction of the bending axis J _0. Since the unit body A is an injection-molded product of resin, it can be elastically deformed so that the interval (width) of the openings formed at both ends in the circumferential direction slightly changes. When the thickness of the unit body 1 is substantially divided into two, the fitting assembling convex portions 2a and 2b (4a and 4b) and the fitting assembling recesses 3a and 3b (5a and 5b) described above are the inner wall the thickness is formed all portions of the half portion of the wall thickness of the outer half, the end face 6a of continuous respectively along the direction of the bending axis J _0, has become 6b. That is, as shown in FIG. 4, FIG. 5, FIG. 11 and FIG. 12, one half portion of the circumferential direction which is the outer bending portion of the half bent cylindrical unit body 1 is approximately half of the general portion. The two fitting assembly convex portions 2a and 2b protruding in the circumferential direction with respect to the end face 6a having a thick thickness, and the two fitting assembly recesses 3a and 3b similarly intruding in the circumferential direction are bending axes. They are formed to alternate along the direction of the heart J ₀ and to satisfy the following “inversion conditions”. Also at the other end in the circumferential direction which is the inner bent portion of the unit body 1, the fitting assembly convex portions 4a and 4b and the fitting assembly concave portions 5a and 5b (see FIG. 3) are the same. They are arranged alternately. Incidentally, in FIG. 8 (b), the curve X _1, X ₂ represents a break position of the X ₁ -X ₁ line, and X ₂ -X ₂ line in FIG. 11.

Here, the above-mentioned “reversal condition” is, as shown in FIG. 7, one unit A ₁ b in a state in which two units A having the same shape are arranged the same [FIG. 7 (a)]. By reversing only by 180 ° [FIG. 7 (b)], the fitting assembly convex portion 2a (2b) of one end portion of the unit body 1 of each unit body A ₁ a, A ₁ b in the circumferential direction is fitted The mating assembling recess 3a (3b) is fitted with each other, and the fitting assembling convex portion 4a (4b) at the other end and the fitting assembling recess 5a (5b) are fitted with each other. The units A ₁ a and A ₁ b can be assembled as shown in FIG. 7 (c), and as shown in FIG. The fitting assembly projections 2a and 2b (4a and 4b) and the fitting assembly recesses 3a and 3b (5a and 5b) which can be assembled together have a total length L and a width W of the entire fitting assembly. Inside both They are arranged point-symmetrically with respect to the point K, and this relationship is referred to as “point symmetry of the arrangement of the fitting assembly convex portion and the fitting assembly recess”.

As shown in FIG. 11 and FIG. 12, the thickness of the plate-like fitting assembly convex portions 2a, 2b (4a, 4b) alternately formed at both end portions in the circumferential direction of the unit body 1, and the hollow The depths of the plate-like fitting assembly concave portions 3a and 3b (5a and 5b) are each approximately half of the thickness of the unit body 1, and by fitting each other, the same as the general portion The thickness is secured. Incidentally, in FIG. 12, DF indicates the assembly divided body B or cut surface of the bent portion the protective cover C ₁ of the two-divided structure. The pair of unit body _{A 1 a, A 1 b (} A 2 a, A 2 b) of the circumferential direction of the both end portions are alternately formed a fitting assembly protrusions 2a each unit body 1, 2b ( 4a, 4b) and the fitting assembly recess 3a, the fitting of 3b (5a, 5b), assembling the pair of the unit body _{a 1 a, a 1 b (} a 2 a, the a ₂ b) a bent cylindrical In a state where the assembly division body B is used, the assembly assembly convexity is performed in order to secure the fitting and prevent separation of the unit bodies A ₁ a and A ₁ b (A ₂ a and A ₂ b). A retaining projection 7 (8) is formed on the inner surface of the tip of the portion 2a (4a), and the retaining projection 9 (11) is formed on the back side of the fitting assembly recess 3a (5a). Is formed, and in the assembled state of the pair of unit bodies A ₁ a and A ₁ b (A ₂ a and A ₂ b), the two retaining projections 7 and 8 (9 and 11) engage with each other, the pair of unit bodies _{a 1 a, a 1 b (} a 2 a, a 2 b) circumference of the Fitting the ends of the counter has become not readily released structure. At the time of with fitting assembly as described above, a pair of the unit body _{A 1 a, A 1 b (} A 2 a, A 2 b) retaining the end portions of the circumferential direction of ridges 7 and 8 (9, 11) The portions are respectively elastically deformed to fit in and out.

As a result, the fitting structure described above, half bent cylindrical pair of unit body _{A 1 a, A 1 b (} A 2 a, A 2 b) by both end portions in the circumferential direction of the fitting, of the pair unit body _{a 1 a, a 1 b (} a 2 a, a 2 b) When assembled as divided body B with bent cylindrical set, as shown in FIGS. 8 and 12, inner side bisects the thickness in part, one of the unit body a ₁ a of the fitting assembly protrusions 2a, 2b (4a, 4b) is, other unit body a ₁ b of the fitting assembly recess 3a, the 3b (5a, 5b) By alternately entering and fitting, on the outer peripheral surface of the assembly divided body B, the dividing surface DF only appears as the dividing line DL.

A split assembly B is formed by assembling a pair of half-bent cylindrical units A ₁ a and A ₁ b (A ₂ a and A ₂ b) into a bent cylindrical shape. In order to connect the plurality of assembly divisions B along the direction of the bending axis J ₀ , as shown in FIGS. 4, 11 and 13, in the direction of the bending axis J ₀ of the unit body A At one end along the semi-circular arc, the part that becomes the inner side when the wall thickness is roughly divided into two protrudes in the direction of the bending axis J ₀ to form a semi-circular engaging projection 21 And the other half arc-shaped end portion is fitted so as not to slip out the engagement projection piece 21 of another unit body A by dropping the inner thickness portion in the case of dividing the thickness into two. A semicircular engagement groove 22 is formed which can be fitted. In order to avoid interference with both end faces 6 a and 6 b in the circumferential direction of the unit body A along the circumferential direction, the half-arc shaped engagement protrusion 21 and the engagement groove 22 both extend to the front side portion It is formed.

Therefore, as shown in FIGS. 7 to 9, one of the pair of unit bodies A having the same shape and the same shape is inverted by 180 ° to form bent portions which are both end portions of the pair of unit bodies A in the circumferential direction. When the outer side and the inner side are assembled in a bending cylindrical shape by the above-mentioned fitting to form an assembly divided body B, both end faces along the direction of the bending axis J ₀ of the assembly divided body B are With the phase shifted by 180 °, the semicircular engagement protrusions 21 and the engagement grooves 22 are disposed.

As shown in FIGS. 9 to 11, when the engaged coupling two assembly divided body B of flexion (theta), a bent portion the protective cover C ₁ of flexion (2 [Theta]). In FIG. 1 and FIG. 11, J _{1 to} J ₃ indicate one end face of a bending portion protective cover C ₁ in which two assembly divisions B are engaged and connected, and two assembly divisions B And a tangent to the bending axis J ₀ at the other end face of the bending protection cover C ₁ . In each end face of the connection side of the two assembly divisions B with a bending angle (θ), the semicircular arc-shaped engagement protrusion 21 and the engagement groove 22 are formed with a phase shift of 180 °. Therefore, when the connecting ends of the assembly divisions B are pressed against each other while the dividing lines DL of the assembly divisions B are aligned, the semicircular engagement protrusions of the assembly divisions B are produced. Each piece 21 is inserted into and engaged with the semicircular arc-shaped engaging groove 22 of the other assembly division body B, whereby the two assembly division bodies B are engaged with each other along the entire circumference. Are engaged and coupled. In order to prevent the engagement connection of the two assembly divisions B from being easily released, the outer surfaces of both circumferential end portions of the semicircular engagement protrusion 21 along the width direction On the side of the end face, a retaining protrusion 23 of a predetermined length is formed in the circumferential direction, which is the inner surface of both end portions in the circumferential direction of the semicircular engagement groove 22 and on the side of the end face along the width direction , the retaining projection 24 of predetermined length to be engaged along the bending direction J ₀ relative to the retaining projection 23 of semi-circular engagement protrusion 21 is formed in the circumferential direction. In addition, when the connection end portions of the assembly divisions B are pressed against each other, the portions of the retaining projections 23 and 24 in the semicircular arc-shaped engaging projection 21 and the engaging groove 22 are slightly elastically deformed inward and outward respectively. Then, the semicircular arc-shaped engaging projections 21 of each assembly segment B are inserted into and engaged with the semicircular arc-shaped engagement grooves 22 of the other assembly segment B, respectively.

Then, by assembling four unit bodies A half bent tubular same shape, to the bent tubular bend the protective cover C _1, as shown in FIG. 7, two of the same arrangement One of the unit bodies A is inverted by 180 °, and in this state, the fitting assembly convex portions 2a and 2b (4a and 4b) formed at one end of the one unit body A in the circumferential direction are the other unit bodies By fitting and assembling into the fitting assembly concave portions 3a and 3b (5a and 5b) formed at one end of A, an assembly divided body B of a bending angle (θ) having a bending cylindrical shape is formed. Ru. In the state of assembly split body B, all the fitting assembly convex portions 2a, 2b (4a, 4b) are disposed on the inner side (inner peripheral surface), and the outer peripheral surface of assembly split body B is bent The dividing line DL which forms the dividing surface DF only appears on the outside and the inside of the portion. On both end surfaces of the assembly divided body B, a semicircular arc-shaped engagement protrusion 21 and an engagement groove 22 are formed in half along the circumferential direction, respectively, and the semicircles on both end surfaces of the assembly divided body B The arrangement of the arcuate engagement lugs 21 and the engagement grooves 22 is offset by 180 °.

  Since the unit body A is in the shape of a half cylinder, it may be deformed by external force during its storage and transportation, but individual units can be assembled by assembling a pair of unit bodies A in a bent cylindrical shape. The body A is assembled in a state where it is inevitably restored to the original shape.

As shown in FIG. 9, when the dividing lines DL are made to coincide with each other and the opposing end faces of the two assembly divisions B are pressed against each other, the semicircles of the respective assembly divisions B arranged at positions 180 ° out of phase with each other. The arcuate engagement projections 21 are inserted into and engaged with the semicircular engagement grooves 22 of the other assembly division B, and the semicircular engagement projections 21 of the respective assembly divisions B. Retaining protrusions 23 formed at both ends in the circumferential direction of the second embodiment, and securing protrusions 24 formed at both ends in the circumferential direction of the semicircular engagement groove 22 of the other assembly division B are bent. by engaging in a state caught along the direction of the axis J _0, 2 pieces of the assembly divided body B is being engaged connection with no easily disengaged, the bent portion protection of flexion (2 [Theta]) cover C ₁ is formed. Openings at both ends of the bent portion the protective cover C ₁ is, it becomes to the connection port 31 of the protective cover C ₀ of the straight are connected (see FIG. 3), the interior space, arrangement of the straight protective cover C ₀ of about It becomes the arrangement | positioning path | route (refer FIG. 3) of the refrigerant pipe P connected with the installation path | route. In the illustrated example, because it is theta = 22.5 °, the bending angle of the bent portion the protective cover C ₁ becomes 45 °.

In the piping example of the refrigerant pipe P shown in FIG. 1 and FIG. 2, in a case where the refrigerant pipe P is bent at 45 degrees in opposite directions at two places which are close to each other, avoiding the obstacle 41 on the building wall the bent portions of the two portions of the refrigerant pipe P, is intended to cover and protect at the bent portion the protective cover C ₁ according to the present invention. Between the two bend protection covers C ₁ and between the upper bend protection cover C ₁ and the 90 ° elbow 42 which is partially inserted into the wall, a short pipe straight protection cover C ₀ is provided. is arranged, the connecting port 31 of the lower end of the oblique downward bend the protective cover C ₁ is connected to the normal straight-shaped protective cover C _0. End of the straight protective cover C ₀ is connected to the inside of the connecting port 31 of the bent portion the protective cover C ₁ partially plugged by.

Further, according to the present invention, it is possible to change the bending angle of the bending portion protective cover according to the number of connections in the assembled divided body B having a specific bending angle (θ = 22.5 °), for example, as shown in FIG. In the above, by connecting four assembly divisions B with a bending angle (θ = 22.5 °), that is, by using a specific number (eight) of unit bodies A of the same shape, the bending angle is bent portions protective cover C ₂ of 90 ° is formed. In FIG. 14, A ₃ a and A ₄ a indicate unit bodies constituting the third and fourth assembly division bodies B, counting from the lower side in the bending direction.

At both ends of the bent portion the protective cover C _1, C ₂ according to the present invention, the end of the straight protective cover C ₀ is formed interpolated possible connection port 31 a, the bent portion protective cover C _1, C of the _two bending axis J _0, by forming the bending axis J ₀ of a predetermined length of the connecting port 31 in a straight line, i.e., the portion of the both end connecting port 31 of the bent portion the protective cover C _1, C ₂ As in the inner peripheral surface of a straight cylindrical body (cylindrical body having a linear axis) by a predetermined length, the bent portion protective covers C ₁ and C are formed by forming the inner peripheral surface in a linear shape in a longitudinal sectional view. Interpolation of the straight protective cover C ₀ with respect to the _two end connection ports 31 is easy, and moreover, after the insertion, the connection between the bending portion protective covers C ₁ and C ₂ and the linear protective cover C ₀ is stable Do.

Since the bending protection covers C ₁ and C _{2 according} to the present invention are formed by assembling the unit A having the same shape and having four or more even-numbered half-bending semi-cylindrical shapes into a bending cylindrical shape, the same shape As shown in FIG. 15, a large number of unit bodies A can be accommodated in the packaging box in a superimposed state. For this reason, when storing and transporting a large number of unit bodies A, it can be accommodated in the minimum space without bulk. In particular, when one pair of unit bodies A are stacked in close contact with each other as the minimum polymerization unit, and a pair of unit bodies A of each set is accommodated with a little space, the one pair of unit bodies The assembly division body B can be assembled immediately by taking out A immediately, inverting one of them, and assembling in a bent cylindrical shape.

  In the above embodiment, the unit body A has a half-bending cylindrical shape, and the assembly divided body B assembled with the pair of unit bodies A has a bending cylindrical shape, but the shape of the unit body is half Not limited to the split bending cylindrical shape, for example, the assembly split body in which a pair of unit bodies are assembled may be a bending angle tubular shape.

  Fitting assembly convex part 2a, 2b (4a, 4b) and fitting assembly concave part 3a, 3b which are alternately formed along the direction of the bending axis at both ends of the pair of units A in the circumferential direction As long as the configuration of (5a, 5b) includes the “point symmetry of the arrangement of the fitting assembly convex portion and the fitting assembly concave portion” defined in paragraph “0033”, the fitting assembly convex is The number of each of the portions 2a and 2b (4a and 4b) and the fitting assembly concave portions 3a and 3b (5a and 5b), and the length along the direction of the bending axis are freely determined.

  The bending axis of the assembly divided body B formed by assembling the pair of unit bodies A of the above embodiment is a circular arc, but as long as it can accommodate and protect the bending portion of the wiring and piping material, It may be bent.

  The above-mentioned application of the bending portion protection cover according to the present invention is to accommodate and protect the bending portion of a refrigerant pipe for an air conditioner, but the bending constituting a bending portion such as a drainage pipe disposed on the outer wall surface of a building It is also possible to accommodate and cover the fittings.

A: A unit body whose arrangement position is not specified A ₁ a, A ₁ b, A ₂ a, A ₂ b, A ₃ a, A ₄ a: a unit body whose arrangement position is specified
B: Division body for assembly
C ₀ : Straight protection cover C ₁ , C ₂ : Flexure protection cover
DF: section plane
DL: Division line
J ₀ : Flexural axis
K: Center of point symmetry
L: Overall length of entire fitting assembly
P: Refrigerant pipe (wiring and piping material)
W: Width of fitting assembly
θ: Flexion angle of assembly split body
1: Unit body 2a, 2b: Fitting assembly convex part of the outer bent part (fitting assembly part)
3a, 3b: Fitting assembly recess (fitting assembly section) of the outer bent portion
4a, 4b: fitting assembly convex part (fitting assembly part) of the inner bent part
5a, 5b: fitting assembly recess (fitting assembly) of the inner bent portion
6a: the end face of the bend in the outside of the unit
6b: end face of the inward bend of the unit
7: Retaining protrusion of the fitting assembly convex portion of the bending portion on the outside of the unit body
8: Retaining protrusion of the fitting assembly recess of the bending portion on the outside of the unit body
9: Retaining protrusion of the fitting assembly convex portion of the bent portion inside the unit body
11: Retaining protrusion of the fitting assembly concave portion of the inner bent portion of the unit body
21: Semi-circular engagement piece
22: Semi-circular engagement groove
23: Retaining protrusion provided on the engaging protrusion
24: Retaining projection provided in the engagement groove
31: Connection port

Claims (9)

A bent tubular protective cover having a curved cylindrical shape for forming an arrangement path of wiring and piping members which are bent in the interior ,
A plurality of assembly divisions in the form of a bent cylinder in which half-bent cylinder-shaped units of the same shape are fitted and assembled together as a pair;
At both ends along the piping direction of the assembly segment, an engagement connection portion is formed which enables engagement and connection with another assembly segment,
In a state in which the split surfaces of the plurality of assembly divisions are aligned, the connection side ends of the plurality of assembly divisions are engaged with each other to arrange the wiring and piping material in the interior. A bent portion protective cover characterized in that   In the state where a plurality of assembly divisions are connected to each other, connection openings are provided to the ends of the straight wiring / pipe material protective cover inserted and connected at both ends along the piping direction. The bending protection cover according to claim 1, characterized in that:   The bent portion protection cover according to claim 2, wherein connection ports are respectively formed at both end portions along the piping direction of each assembly division body.   The inner peripheral surface of the connection port of each assembly division body corresponds to the outer peripheral surface of the straight cylinder whose axis is linear so that the end of the straight wiring / pipe material protective cover can be inserted. The bent portion protection cover according to claim 2, wherein the bent portion protection cover is formed in a straight line in a longitudinal sectional view.   The engaging and connecting portion is an arc-shaped engaging projection piece protruding to the outside at one end face along the direction of disposition of the wiring and piping material of the unit body, and the other end face of the unit body It is formed of an arc-shaped engagement groove which can be engaged with the engagement protrusion of another unit body at a position opposite to the formation position of the engagement protrusion on the inner circumferential surface in the oblique direction. The bending protection cover according to any one of claims 1 to 4, characterized in that   The split surface of the assembly split body formed by assembling the pair of unit bodies is linear, and in a state in which it is engaged with and connected to another assembly split body, each of the assembly split bodies The bend protection cover according to any one of claims 1 to 5, wherein the dividing surface is a continuous straight line.   At both end portions in the circumferential direction of the unit body, a fitting assembly convex portion and a fitting assembly concave portion which can be fitted and assembled to each other are midpoints of both the entire length and width of the entire fitting assembly portion The bending protection cover according to any one of claims 1 to 6, wherein the bending protection cover is disposed point-symmetrically with respect to. A bent portion protection cover is provided with a connection port to which an arrangement path of a wiring / pipe material bent at 90 ° or 45 ° is formed inside, and a straight wiring / pipe material protective cover is connected at both ends,
A united body of the same shape having a half-bent cylindrical shape is assembled to each other as a pair to form an assembly divided body having a curved cylindrical shape,
The bending portion protection cover is formed by connecting a plurality of the assembly division bodies by the number of connections such that the bending angle of the assembly division body is 90 ° or 45 ° by multiplying the connection number. Bending protection cover characterized in that It is a unit body which constitutes a bending cylindrical protection part for a bending portion for forming an arrangement path of wiring and piping material to be bent inside ,
The unit body has a half-bent cylindrical shape, and a pair of unit bodies of the same shape are fitted and assembled in a bent cylindrical shape to form an assembly division body, and a plurality of assembly division bodies are wiring -By being engaged and coupled along the direction of arrangement of the piping material, a bent cylindrical protective cover is formed.
The unit body is formed at each end portion in the circumferential direction with a fitting assembly portion to be an assembly divided body by fitting and assembling a pair of unit bodies, and the both end portions in the disposition direction And a unit body of the bending portion protective cover characterized in that an engagement connecting portion engaged with and coupled to a unit body of another assembly segment arranged along the arrangement direction is formed.

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