Wiring cover

Abstract

The present invention provides a wiring cover that is easy to install even in cases of site fabrication, facilitates the insertion of wiring, and suppresses intrusion of dust. This wiring cover comprises: a wiring accommodation part which is installed in a corner portion where two faces intersect to create a recessed corner and which accommodates wiring internally from one end to the other end; and a wiring insertion part which is formed in a slit shape running from one end to the other end in one of the two faces of the wiring accommodation part to allow for the insertion of wiring into the wiring accommodation part, wherein the wiring accommodation part comprises a body portion comprising a bottom face along one of the two faces and a lateral face along the other of the two faces, and a covering portion covering the body portion and formed from a material that is more pliant and elastically deformable than the body portion, and the covering portion is deformed to cause the wiring insertion part to open, thereby allowing for the insertion of wiring.

Description

Wiring cover

[0001] The present invention relates to a wiring cover.

[0002] A corner wiring cover is known in which two strip-shaped mounting bases arranged at right angles are connected to each other at their side ends, a cover plate is connected to the side end of one of the mounting bases so that it can be opened and closed freely, the width dimension of the cover plate is the length spanning the side ends of the two mounting bases, an engagement groove is provided on one of the side ends of the cover plate and the other side end of the other mounting base, and a protrusion that can engage with the engagement groove is formed on the other side, and the entire cover is made of a molded synthetic resin (Patent Document 1).

[0003] In a wiring cover consisting of an elongated base member having a pair of cable regulating plates standing opposite each other from a bottom plate installed on the wiring surface, and an elongated cover member that is fitted externally between the outer surfaces of the cable regulating plates of the elongated base member to form a cable wiring cavity between the inner surfaces of the cable regulating plates, a wiring cover is also known that is equipped with a cable regulating band that is fitted internally between the inner surfaces of the cable regulating plates to prevent cables from escaping from between the inner surfaces of the cable regulating plates, and that is configured so that the elongated cover member is fitted externally after the cable regulating band is fitted internally (Patent Document 2).

[0004] Japanese Patent Laid-Open No. 9-247820 Japanese Patent Laid-Open No. 2002-290070

[0005] The present invention provides a wiring cover that is easy to install, including on-site processing, facilitates the insertion of wiring, and prevents the intrusion of dust.

[0006] In order to solve the above problem, the wiring cover described in claim 1 is characterized in that it is installed at a corner portion where two surfaces intersect to form an inside corner portion, and is equipped with a wiring accommodating portion that accommodates wiring inside from one end side to the other end side, and a wiring insertion portion that is formed in a slit shape on one of the two surfaces of the wiring accommodating portion from one end side to the other end side, and that allows the wiring to be inserted into the wiring accommodating portion.

[0007] The invention described in claim 2 is characterized in that, in the wiring cover described in claim 1, the wiring accommodating portion comprises a main body portion consisting of a bottom surface along one of the two surfaces and a side surface along the other of the two surfaces, and a cover portion covering the main body portion and formed of a material that is softer and more elastically deformable than the main body portion, and by deforming the cover portion, the wiring insertion portion opens and the wiring can be inserted.

[0008] The invention described in claim 3 is the wiring cover described in claim 2, characterized in that the difference in type D durometer hardness between the main body portion and the cover portion is 10 or more, and both have type D durometer hardness of D50 or less.

[0009] The invention described in claim 4 is characterized in that, in the wiring cover described in claim 2, the wiring insertion portion consists of a convex portion and a concave portion facing each other, and when the covering portion is not deformed, the convex portion and the concave portion are closely facing each other.

[0010] The invention described in claim 5 is the wiring cover described in claim 2, characterized in that the main body portion has a lip shape at an end portion that contacts at least one of the two surfaces.

[0011] The invention described in claim 6 is characterized in that, in the wiring cover described in any one of claims 2 to 5, the main body portion and the cover portion are formed as a single unit by extrusion molding thermoplastic elastomer resin or soft resin of different hardness.

[0012] According to the first aspect of the present invention, construction, including on-site processing, is easy, wiring insertion is made easy, and the intrusion of dust can be suppressed.

[0013] According to the second aspect of the present invention, the insertion of the wiring can be facilitated.

[0014] According to the third aspect of the present invention, the wiring insertion portion can be easily opened.

[0015] According to the fourth aspect of the present invention, the wire insertion portion is less likely to slip out of place, and when pressed from above, the pressing force is more easily transmitted to the bottom surface of the main body portion, increasing the pressure on the bottom surface.

[0016] According to the fifth aspect of the present invention, it is possible to prevent dust from entering between the main body and the installation surface.

[0017] According to the sixth aspect of the present invention, the components can be integrally molded.

[0018] It is a perspective view showing an example of installation of the wiring cover according to the embodiment. It is a cross-sectional schematic view showing the structure of the wiring cover according to the embodiment. It is a diagram explaining installation of the wiring cover at a corner part. It is a diagram explaining accommodation of wires in a wiring accommodation part.

[0019] Next, the present invention will be described in more detail below with reference to the drawings, showing embodiments and specific examples, but the present invention is not limited to these embodiments and specific examples. Furthermore, in the following description using the drawings, it should be noted that the drawings are schematic and the ratios of dimensions, etc., are different from those of the actual objects, and for ease of understanding, illustrations other than those necessary for the description are omitted as appropriate.

[0020] (1) Configuration of the Wiring Cover Fig. 1 is a perspective view showing an example of installation of the wiring cover 1 according to this embodiment, and Fig. 2 is a schematic cross-sectional view showing the structure of the wiring cover 1 according to this embodiment. The configuration and function of the wiring cover 1 according to this embodiment will be described below with reference to the drawings.

[0021] 1, the wiring cover 1 is configured to include a wiring housing portion 10 that houses wiring W from one end side to the other end side, and a wiring insertion portion 20 that allows the wiring W to be inserted into the wiring housing portion 10. The wiring cover 1 configured in this manner is installed at a corner portion C where two surfaces (X and Y in FIG. 1) intersect to form an inside corner, and, for example, houses wiring W that is wired along the corner portion C of a building inside, and holds the wiring W so that it is not exposed to the outside.

[0022] 2, the wiring accommodation section 10 is composed of a main body section 10A having a bottom surface 11 along one surface X of the two surfaces of the corner section C to be installed and a side surface 12 along the other surface Y of the two surfaces, and a cover section 10B that covers the main body section 10A and is formed of a material that is softer and more elastically deformable than the main body section 10A. The main body section 10A and the cover section 10B are integrally formed by extrusion molding a thermoplastic elastomer resin or soft resin having different hardnesses, with the bottom surface 11 and the side surface 12 connected at one end 11a, 12a.

[0023] 2, the main body 10A has a bottom surface 11 and a side surface 12 that intersect with each other to form an L-shaped cross section, and a slit 13 is formed in the side surface 12 from one end to the other end. The slit 13 serves as a wire insertion portion 20 through which a wire W can be inserted into the wire housing portion 10.

[0024] A lip shape 11b is formed on one end 11a of the bottom surface 11. The lip shape 11b has a tapered tip 11c in a cross-sectional view. For example, when the bottom surface 11 of the main body 10A is fixed to one surface X of the two surfaces of the corner portion C with double-sided tape or the like, the lip shape 11b is elastically pressed against the surface X, thereby acting as a seal to prevent dust and other particles from entering the bottom surface 11. The lip shape may also be formed on one end 12a of the side surface 12. By forming the lip shape 12b on the one end 12a of the side surface 12, the lip shape 12b elastically contacts the surface Y, preventing dust and other particles from entering the side surface 12 and making the inside of the side surface 12 invisible from above.

[0025] 2, the cover 10B is formed in a semi-arch shape so as to connect and cover the bottom surface 11 and side surface 12 of the main body 10A. One end 10Ba of the cover 10B is connected to one end 11a of the bottom surface 11 of the main body 10A, and the other end 10Bb is connected to one end 12a of the side surface 12 of the main body 10A, so that the wiring W housed in the main body 10A is not exposed to the outside from the main body 10A.

[0026] The cover portion 10B is formed integrally with the main body portion 10A by extrusion molding. In this embodiment, the main body portion 10A and the cover portion 10B are integrally extrusion molded using two types of thermoplastic elastomers (TPEs) with different hardnesses. Both of the thermoplastic elastomers (TPEs) have a Type D durometer hardness of D50 or less as measured in accordance with JIS K7215. The cover portion 10B is molded from a thermoplastic elastomer (TPE) or soft resin whose Type D durometer hardness is 10 or more lower than that of the main body portion 10A.

[0027] Examples of such resin materials include polystyrene elastomer, polystyrene, polyolefin elastomer, polyolefin, ethylene-vinyl acetate copolymer, polyvinyl chloride elastomer, polyvinyl chloride, polyurethane elastomer, polyurethane, polyester elastomer, polyester, polyamide elastomer, and polyamide. For the cover 10B, a resin material having a D-scale hardness of 40 or less as measured by a type D durometer hardness tester can be used. In this embodiment, a polyurethane elastomer or soft polyvinyl chloride resin having a D-scale hardness of 40 or less is used. If the D-scale hardness exceeds 40, the cover 10B will be difficult to deform, which may make it difficult to insert the wire W from the wire insertion portion 20 into the wire accommodating portion 10.

[0028] (Wire Insertion Portion) The wire insertion portion 20 is formed as a slit 13 extending from one end to the other end on the side surface 12 of the main body portion 10A. The wire insertion portion 20 opens the slit 13 by deforming the cover portion 10B, which is made of a thermoplastic elastomer (TPE) or soft resin having a type D durometer hardness that is 10 or more lower than that of the main body portion 10A, so that the wire W can be inserted.

[0029] 2, the slit 13 is made up of a convex portion 13A and a concave portion 13B that face each other, and when the cover portion 10B is not deformed, the convex portion 13A and the concave portion 13B are closely opposed to each other. This makes it difficult for the wiring insertion portion 20 to shift, and when the main body portion 10A is pressed from above, the convex portion 13A and the concave portion 13B come into contact so as to interlock, making it easier to transmit the pressing force to the bottom surface 11 of the main body portion 10A, and increasing the pressure when the bottom surface 11 of the main body portion 10A is attached to the surface X with, for example, double-sided tape.

[0030] (2) Manufacturing method of wiring cover 1 The wiring cover 1 of this embodiment is molded by two-color extrusion molding using a thermoplastic elastomer resin that forms the main body portion 10A and a thermoplastic elastomer resin that forms the cover portion 10B, the type D durometer hardness of which is 10 or more lower than that of the main body portion 10A.

[0031] The extrusion molding method is not particularly limited, but as an example, the wire cover 1 can be produced by extrusion molding as follows. First, the thermoplastic elastomer resin forming the main body 10A and the thermoplastic elastomer resin forming the cover 10B are heated and kneaded at 160°C to 230°C to melt them, passed through a filtration filter, and then simultaneously melt-extruded from the outlet of a mold die heated to 160°C to 180°C and cooled to solidify. This results in the wiring cover 1 in which one end 11a of the bottom surface 11 of the main body 10A and one end 12a of the side surface 12 are connected to the cover 10B and integrated.

[0032] (3) Installation of the Wiring Cover Fig. 3 is a diagram illustrating installation of the wiring cover 1 in the corner portion C, and Fig. 4 is a diagram illustrating storage of wiring W in the wiring storage portion 10. The wiring cover 1 is cut to the required length and attached with double-sided tape or the like to one surface X of the corner portion C where two surfaces X and Y intersect to form an inside corner. The wiring cover 1 according to this embodiment is extrusion-molded using a thermoplastic elastomer resin having a type D durometer hardness of D50 or less as measured in accordance with JIS K7215. Therefore, compared to a hard synthetic resin, it is easier to cut with scissors or a cutter at the installation site, making installation easier.

[0033] After cutting the wiring cover 1 to the required length, the bottom surface 11 is fixed to one surface X of the corner C with adhesive AD, such as double-sided tape. As shown in FIG. 3 , the side surface 12 of the main body 10A has a wiring insertion portion 20 formed as a slit 13 consisting of a convex portion 13A and a concave portion 13B facing each other. The convex portion 13A and the concave portion 13B are closely spaced and face each other when the cover 10B is not deformed. Thus, when the main body 10A is pressed from above (see arrow F in the figure), the convex portion 13A and the concave portion 13B come into contact with each other, transmitting the pressure to the bottom surface 11 (see arrow R in the figure), firmly securing the main body 10A to the corner C.

[0034] As shown in Fig. 4(a), when the wires W are pressed against the upper surface 10Bc of the cover portion 10B of the wire cover 1 fixed to the corner portion C, the cover portion 10B is easily deformed because it is made of a thermoplastic elastomer that is softer and more elastically deformable than the main body portion 10A, and the wire insertion portion 20 opens wide as shown in Fig. 4(b). This allows the wires W to be easily accommodated within the main body portion 10A. After accommodating the wires W within the main body portion 10A, the deformed cover portion 10B returns to its original shape as shown in Fig. 4(c), preventing the wires W from being exposed to the outside from the main body portion 10A.

[0035] (4) Effects of the Wire Cover 1 The main body 10A and cover 10B of the wire cover 1 are extrusion-molded using two types of thermoplastic elastomer (TPE) with different hardnesses, both of which have a Type D durometer hardness of D50 or less as measured in accordance with JIS K7215. The cover 10B is integrally molded from a thermoplastic elastomer (TPE) or soft resin with a Type D durometer hardness 10 or more lower than that of the main body 10A. This facilitates installation, including on-site processing, and facilitates the insertion of the wires W. The wire insertion portion 20 is formed as a slit 13 extending from one end to the other end of the side surface 12 of the main body 10A. By deforming the cover 10B, which is molded from a thermoplastic elastomer (TPE) or soft resin with a Type D durometer hardness 10 or more lower than that of the main body 10A, the slit 13 opens, allowing the wires W to be inserted. After the wiring W is inserted, the cover 10 easily returns to its original shape, preventing the wiring W from being exposed to the outside of the main body 10A. The slit 13, which forms the wiring insertion portion 20, consists of a convex portion 13A and a concave portion 13B facing each other. When the cover 10B is not deformed, the convex portion 13A and the concave portion 13B are closely spaced and face each other. This prevents the wiring insertion portion 20 from slipping out of place. When pressed from above, the convex portion 13A and the concave portion 13B interlock with each other, easily transmitting the pressure to the bottom surface 11 of the main body 10A and increasing the pressure on the bottom surface 11. A lip 11b is formed on one end 11a of the bottom surface 11 of the main body 10A to prevent dust and other particles from entering the bottom surface 11. A lip 12b is also formed on one end 12a of the side surface 12 to prevent dust and other particles from entering the side surface 12 and to make the interior of the side surface 12 invisible from above.

[0036] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention as set forth in the claims. For example, the cover portion 10B may be extruded using a material of the same color as the corner portion C. By making the cover portion 10B the same color as the corner portion C, the installation of the wiring W can be made less noticeable. Furthermore, by making the cover portion 10B a transparent material, the wiring W housed inside can be made visible.

[0037] (Additional Notes) This specification discloses at least the following inventions. [1] A wiring cover comprising: a wiring housing portion installed at a corner portion where two surfaces intersect to form an inside corner portion, and housing a wiring from one end side to the other end side; and a wiring insertion portion formed in a slit shape on one of the two surfaces of the wiring housing portion from one end side to the other end side, allowing the wiring to be inserted into the wiring housing portion. [2] The wiring cover described in [1], wherein the wiring housing portion comprises a main body portion having a bottom surface along one of the two surfaces and a side surface along the other of the two surfaces, and a cover portion covering the main body portion and formed of a material that is softer and more elastically deformable than the main body portion, and wherein the wiring insertion portion opens when the cover portion is deformed, allowing the wiring to be inserted. [3] The wiring cover described in [2], wherein the difference in Type A durometer hardness between the main body portion and the cover portion is 10 or more, and both have a Type A durometer hardness of D50 or less. [4] The wiring cover according to [2] or [3], characterized in that the wiring insertion portion comprises a convex portion and a concave portion facing each other, and the convex portion and the concave portion face each other closely when the cover portion is not deformed. [5] The wiring cover according to any of [1] to [4], characterized in that the main body portion has a lip shape at an end portion that contacts at least one of the two surfaces. [6] The wiring cover according to any of [2] to [5], characterized in that the main body portion and the cover portion are integrally formed by extrusion molding a thermoplastic elastomer resin or a soft resin having different hardnesses.

[0038] According to the invention described in [1], construction is easy, including on-site processing, making it possible to facilitate wiring insertion and suppressing the intrusion of dust. According to the invention described in [2], it is possible to facilitate wiring insertion. According to the invention described in [3], it is possible to make it easy to open the wiring insertion section. According to the invention described in [4], it is difficult for the wiring insertion section to slip out of place, and when pressed from above, the pressing force is easily transmitted to the bottom surface of the main body, increasing the crimping force of the bottom surface. According to the invention described in [5], it is possible to suppress the intrusion of dust between the main body and the installation surface. According to the invention described in [6], it is possible to form it into an integral form.

[0039] 1... Wiring cover 10... Wiring accommodation section 10A... Main body section, 11... Bottom surface, 12... Side surface 10B... Covering section 20... Wiring insertion section 13... Slit W... Wiring, C... Corner section

Claims

1. A wiring cover comprising: a wiring accommodating section that is installed at a corner where two surfaces intersect to form an inside corner, and that accommodates wiring from one end to the other; and a wiring insertion section that is formed in a slit shape on one of the two surfaces of the wiring accommodating section from one end to the other, and that allows the wiring to be inserted into the wiring accommodating section.

2. The wiring cover of claim 1, characterized in that the wiring accommodating section comprises a main body section consisting of a bottom surface along one of the two surfaces and a side surface along the other of the two surfaces, and a cover section that covers the main body section and is formed from a material that is softer and more elastically deformable than the main body section, and by deforming the cover section, the wiring insertion section opens, allowing the wiring to be inserted.

3. The wiring cover according to claim 2, wherein the difference in Type A durometer hardness between the main body and the cover is 10 or more, and both have Type A durometer hardness of D50 or less.

4. The wiring cover according to claim 2, characterized in that the wiring insertion portion consists of a convex portion and a concave portion facing each other, and when the cover portion is not deformed, the convex portion and the concave portion face each other closely.

5. The wiring cover according to claim 2, wherein the main body has a lip shape at an end thereof that contacts at least one of the two surfaces.

6. A wiring cover as claimed in any one of claims 2 to 5, characterized in that the main body and the cover are integrally formed by extrusion molding thermoplastic elastomer resin or soft resin of different hardness.

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