Installation method for mounting components and wiring / piping materials

Abstract

The objective is to enable the laying of power lines without damaging them by using an attachment device (power line guide) that can be attached to the gutter with a single touch. [Solution] The mounting body A1 is attached to the gutter body T1 via a pair of left and right rear locking parts 1a and front locking parts 1b, respectively, which are positioned on the back and front sides of a pair of folded-back parts 65 formed at both ends in the width direction of an opening 62 along the longitudinal direction of the gutter body T1; and the regulating body A2 is detachably attached to the mounting body A1 and is positioned between the pair of rear locking parts 1a, and is equipped with a deformation regulating part 34 that prevents the pair of rear locking parts 1a from bending and deforming inward. The mounting body A1 can be laid in the laying space 61 of the gutter body T1 without damaging the electric wire C through the entry opening 4 and passage space 2 formed in the mounting body A1.

Description

Technical Field

[0001] The present invention relates to an attachment body that can be attached to a gutter with one touch, and a method for laying wiring and pipe materials.

Background Art

[0002] Patent Document 1 discloses an attachment body that can be shared for lip groove-shaped steels having different-shaped lip portions (folded-back portions). The attachment body inserts the insertion portion on the back side into the inside of the lip groove-shaped steel through the opening, and by rotating the attachment body in a predetermined direction, the locking plate portion provided on the insertion portion is locked to the lip portion of the lip groove-shaped steel, and the lip portions are sandwiched between the locking plate portion and the sandwiching plate portion on the front side, thereby attaching the attachment body to the lip groove-shaped steel.

[0003] However, in order to rotate the attachment body so that the locking plate portion locks to the lip portion with the insertion portion on the back side inserted into the inside of the lip groove-shaped steel, a considerably large rotational force is required, and it is necessary to screw a screw for preventing the attachment body in the attached state from rotating reversely into the sandwiching plate portion and hook the tip thereof on the lip portion, making the attachment operation of the attachment body to the lip groove-shaped steel troublesome.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide an attachment body (wire drawing guide) that can be attached to a gutter with one touch, and to enable laying of wiring and pipe materials without damaging them using the attachment body (wire drawing guide).

Means for Solving the Problems

[0006] The invention of claim 1, which solves the above problem, A mounting body for a gutter having a groove shape with a pair of inwardly folded portions, and a longitudinally continuous opening formed between the pair of folded portions, An attachment body is attached to the gutter by a locking mechanism comprising: a pair of back-side locking parts positioned on the back side of the pair of folded parts, which are inserted from the opening and brought close together to each other until they can pass between the pair of folded parts; and a pair of front-side locking parts positioned on the front side of the pair of folded parts, which cooperate with the pair of back-side locking parts to sandwich the pair of folded parts. A restricting body is attached to the main body of the attachment and is positioned between the pair of rear-side locking portions, and is equipped with a deformation restricting portion that prevents the pair of rear-side locking portions from coming into close proximity to each other and releasing the locking with the folded portion, It is characterized by being composed of [this].

[0007] According to the invention of claim 1, a pair of back-side locking portions and a pair of front-side locking portions constituting the main body of the attachment constitute the attachment portion of the main body to the gutter, and the pair of back-side locking portions and the front-side locking portions are positioned on the back and front sides, respectively, of a pair of folded portions of the gutter, and the main body of the attachment is attached to the gutter by sandwiching the folded portions. Between the pair of back-side locking portions of the main body of the attachment attached to the gutter, a deformation restricting portion constituting a restricting body attached to the main body of the attachment is positioned, so that the pair of back-side locking portions deform inward, preventing the release of the locking between the pair of folded portions of the gutter and the pair of back-side locking portions of the main body of the attachment.

[0008] The invention of claim 2 is, in the invention of claim 1, The mounting body has a passage space inside through which wiring and piping materials can pass, and an inlet for the wiring and piping materials is formed at the upstream end along the direction of passage of the passage space. The regulating body is characterized in that it can be assembled to the mounting body by sliding along the gutter in the direction in which the wiring and piping materials are drawn in as they pass through the passage space and into the gutter.

[0009] According to the invention of claim 2, the wiring and piping material is connected to a pull wire laid inside the gutter, and by pulling the pull wire, the wiring and piping material is drawn in from the entry point of the restrictor through the passage space into the laying space inside the gutter. When the wiring and piping material is drawn in, sliding resistance is generated between it and the restrictor, but this sliding resistance acts only in the direction of assembling the restrictor to the mounting body, so the assembly becomes even more secure when the wiring and piping material is drawn in.

[0010] The invention of claim 3 is, in the invention of claim 2, The aforementioned entry port is such that the end of the corrugated conduit can be inserted into it. The mounting body is characterized in that the inner circumferential surface on the inside of the entry port has a retaining locking portion that is inserted into and locked into the annular recess at the end of the corrugated conduit.

[0011] According to the invention of claim 3, the end of the corrugated conduit is inserted into the interior through the upper opening of the mounting body, and the locking portion provided on the inside of the entry port of the mounting body is inserted into the annular recess of the corrugated conduit, so that the corrugated conduit does not come out of the entry port of the mounting body.

[0012] The invention of claim 4 is, in the invention of claim 2, The mounting body has a substantially U-shaped cross-section, and is flexible so that the pair of back-side locking portions provided at both ends of the cross-sectional view are close to each other. The restricting body is characterized in that, when assembled to the mounting body, it is positioned to span across both ends of the mounting body in a cross-sectional view, and when assembled, it can be displaced from this spanning position to open the space between the two ends, allowing the passage space of the mounting body to communicate with the outside.

[0013] According to the invention of claim 4, when the pair of rear locking portions of the mounting body are made to bend and deform so that they are close to each other, and the pair of rear locking portions of the mounting body are passed through the opening between the pair of folded portions of the gutter, and the bending deformation is released, the pair of rear locking portions are positioned on the back side of the pair of folded portions of the gutter, and the pair of folded portions of the gutter are sandwiched between the pair of rear locking portions and the pair of front locking portions, and the mounting body is attached to the gutter. Furthermore, by placing restricting bodies across both ends of the mounting body, which has a roughly U-shaped cross-section, the passage space formed in the mounting body is formed in a cylindrical shape. When the restricting bodies are placed across both ends of the mounting body in a cross-sectional view, and the restricting bodies are displaced so that the space between the two ends is opened, the top opening of the mounting body is connected to the outside, and wiring and piping materials arranged in the passage space can be pulled out to the outside through the top opening.

[0014] The invention of claim 5 is, in any of the inventions of claims 1 to 4, The mounting body and the restricting body each have a sliding operation part that allows them to be released from the mounting body by sliding movement, and the sliding operation part is located outside the gutter when the restricting body is assembled to the mounting body.

[0015] According to the invention of claim 5, the slide operating part for releasing the assembly of the mounting body and the restricting body is located outside the gutter when the mounting body and the restricting body are assembled. When the slide operating part is operated to slide the restricting body away from the mounting body, the deformation restricting part of the restricting body is released from between the pair of rear locking parts of the mounting body. This brings the pair of rear locking parts of the mounting body closer together, releasing the lock between the pair of rear locking parts and the pair of folded parts of the gutter body, and the mounting body is removed from the gutter body.

[0016] The invention of claim 6 is, in any of the inventions of claims 1 to 4, The aforementioned entry point is characterized by having a connector mounting section on which a conduit connector can be attached, such that the inside of the conduit connector to which the conduit is connected faces the passage space.

[0017] According to the invention of claim 6, the conduit connector can be attached to the entrance using the connector attachment part provided at the entrance, so that it faces the passage space of the attachment body, and the conduit can be connected to the attachment body attached to the gutter via the conduit connector.

[0018] The invention of claim 7 is, A method for laying wiring and piping materials inside a trough enclosed by a bottom wall extending in the longitudinal direction, a pair of side walls erected facing each other from both ends in the width direction of the bottom wall, and a pair of folded-back sections where the tips of the pair of side walls are folded inward so as to face the side walls, thereby forming a space for laying wiring and piping materials inside, with an opening extending in the longitudinal direction formed between the tips of the pair of folded-back sections, and the trough suspended with the opening facing downward or upward, The installation start position is defined as a specific location along the longitudinal direction of the gutter where the wiring and piping materials are drawn from the outside into the internal installation space. A guide device for pulling wiring and piping materials into the installation space is installed on the pair of folded sections so as to intersect the longitudinal direction of the gutter and cross the opening, and is positioned between a position directly above the bundle of wiring and piping materials installed on the floor surface and a suspension fitting for suspending the gutter, which is positioned further ahead than the position directly above where the wiring and piping materials will be laid. The method is characterized by pulling a pull wire connected to the end of the wiring / piping material within the installation space, thereby pulling the wiring / piping material into the installation space without contacting the suspension fitting, with the installation position of the pull-in guide device as the installation starting position.

[0019] According to the invention of claim 7, a drawing guide for guiding the wiring and piping materials into the laying space is installed between the position directly above the bundle of the wiring and piping materials installed on the floor surface and a hanging bracket that is arranged at the laying destination where the wiring and piping materials are laid from the directly above position and suspends the gutter. As a result, the wiring and piping materials drawn into the laying space of the gutter from the outside do not contact the drawing guide, and thus the wiring and piping materials are not damaged and are laid in the laying space.

Effect of the Invention

[0020] According to the present invention, a pair of back-side locking portions and a pair of front-side locking portions constituting the attachment body main body form an attachment portion to the gutter. The pair of back-side locking portions and front-side locking portions are respectively arranged on the back side and the front side of the pair of folded-back portions of the gutter, and by sandwiching the folded-back portions, the attachment body main body is attached to the gutter. A deformation restricting portion constituting a restricting body attached to the attachment body main body is arranged between the pair of back-side locking portions of the attachment body main body attached to the gutter, thereby preventing the pair of back-side locking portions from deforming inward and preventing the release of the locking between the pair of folded-back portions of the gutter and the pair of back-side locking portions of the attachment body main body.

Brief Description of the Drawings

[0021] [Figure 1] (a) and (b) are perspective views of a state where the attachment body A is attached to the gutter T with the opening 62 disposed downward, viewed from different directions. [Figure 2] Exploded perspective view of the gutter T and the attachment body A. [Figure 3] Perspective view of the state before the restricting body A2 is slid and assembled with respect to the attachment body main body A1 attached to the gutter T, viewed from below. [Figure 4] (a) is a perspective view of a state where the attachment body A is attached to the gutter T, viewed from the upper right, and (b) is a view of the state of (a) viewed from the side of the restricting body A2. [Figure 5](a) is a bottom view showing the gutter body T1 with the attachment body A1 and the restrictor body A2 arranged separately, and (b) is a bottom cross view showing both A1 and A2 assembled. [Figure 6] This is a cross-sectional view of the gutter body T1 and the cover T2 that make up the gutter T. [Figure 7] (a) and (b) are perspective views of the attachment body A1 from different directions. [Figure 8] (a), (b), and (c) are the plan view, front view, and bottom view of the mounting body A1, respectively. [Figure 9] (a) to (c) are cross-sectional views along the lines X1-X1 to X3-X3 in Figure 8, respectively. [Figure 10] (a) to (d) are perspective views of regulatory body A2 from different directions. [Figure 11] (a) to (e) are the top view, front view, bottom view, right side view, and left side view of the regulatory body A2, respectively. [Figure 12] (a) to (c) are cross-sectional views along the lines Y1-Y1 to Y3-Y3 in Figure 11, respectively. [Figure 13] (a) and (b) are perspective views of the attachment body A1 and the restrictor A2 in their unassembled (separated) state, viewed from different directions. [Figure 14] (a) and (b) are perspective views of the assembled state of the mounting body A1 and the restrictor A2 from different directions, respectively, and (c) is a perspective view of the state in which the restrictor A2 is rotated laterally relative to the mounting body A1 to connect the passage space 2 to the outside. [Figure 15] (a) is a front view of the gutter body T1 with attachment A attached, and (b) and (c) are cross-sectional views of (a) along lines Z1-Z1 and Z2-Z2, respectively. [Figure 16] (a) and (b) are front and rear bottom cross-sectional views showing the deformation restricting portion 34 of the restricting body A2 released from between the pair of first side wall portions 6a of the attachment body A1, respectively, so that the restricting body A2 can be rotated laterally. [Figure 17]This is a schematic front view showing the state in which the electric wire C is pulled through the attachment body A into the laying space 61 of the gutter body T1. [Figure 18] This is a cross-sectional view showing the end of the corrugated conduit P1 inserted and locked into the entry port 4 in the passage space 2 of the attachment body A1. [Figure 19] This is a perspective view showing the mounting body A1 and regulating body A2 separated and removed from the gutter body T1, with regulating body A2 rotated to the side, in order to check the condition of the power line C being pulled in. [Figure 20] This is a cross-sectional view showing a portion of the conduit connector K inserted and locked into the entry port 4 in the passage space 2 of the mounting body A1. [Modes for carrying out the invention]

[0022] The present invention will be described in more detail below with reference to the best embodiment. The attachment A in the embodiment shown in Figures 1 to 5 is a "wire pulling guide" used to pull wires into a gutter T, and consists of an attachment body A1 that is slidably attached to the gutter body T1 by a locking structure, and a restricting body A2 that is integrally assembled to the attachment body A1, both of which are molded from resin.

[0023] The gutter T is a metal extruded product, and as shown in Figure 6, it is a long member that is suspended horizontally from the ceiling or the like, and is used to pull long wiring and piping materials such as electric wires C from the outside into the laying space 61 for installation. Depending on the application, it is also called a raceway or wiring duct, and consists of a gutter body T1 and a cover T2 that closes the opening 62 of the gutter body T1. The gutter body T1 consists of a bottom wall 63, a pair of side wall sections 64 that are erected in a facing position from both ends of the bottom wall section 63, and a pair of folded-back sections 65 that are folded inward at the end of each side wall section 64 opposite to the bottom wall section 63 so as to form an acute angle with respect to the inner surface of each side wall section 64. The space between the pair of folded-back sections 65 is the opening 62 for pulling electric wires C, etc. into the internal laying space 61. The cover T2 is a long, plate-shaped member that closes the opening 62 of the gutter body T1 by being fitted to the outside of a pair of side wall portions 64 of the gutter body T1. The widthwise ends of the cover plate portion 66 are bent at a right angle to the same side, and fitted bent portions 67 are provided on the inside of each fitted bent portion 67 of the cover plate portion 66, and reinforcing rib portions 68 are provided in the longitudinal direction on the inside of each fitted bent portion 67 of the cover plate portion 66, which abut against the base ends of each folded portion 65 of the gutter body T1 to increase the bending strength along its longitudinal direction.

[0024] The mounting body A1, which is attached to the gutter body T1 with a locking structure, includes, as shown in Figures 7 to 9, a pair of left and right locking parts 1 that lock onto the folded portion 65 of the gutter body T1 to attach the entire mounting body A1 to the gutter body T1, and a passage space forming part 3 that, when attached to the gutter body T1, is positioned at an inclination (45° in this embodiment) relative to the gutter body T1 to form a passage space 2 for passing and drawing in the electric wire C housed in the laying space 61 of the gutter body T1. The passage space 2 is positioned at an inclination relative to the horizontally positioned gutter body T1 to facilitate drawing in the electric wire C into the laying space 61 of the gutter body T1. The passage space forming section 3 has a roughly right-angled isosceles triangle shape in a front view as shown in Figure 8(b). The pair of left and right locking sections 1 are formed along the longitudinal direction of the slanted side 3a of the passage space forming section 3, which is positioned parallel to the gutter body T1 and offset from the center of the slanted side 3a of the passage space forming section 3 to the opposite side from the entrance 4 of the passage space 2. In a front view, the portion of the passage space forming section 3 that becomes the slanted side 3a opens to the side of the pair of locking sections 1, and a U-shaped cross-section is formed perpendicular to the first isosceles portion 3b which becomes the bottom wall 5. The portion of the passage space forming section 3 that becomes the second isosceles portion 3c serves as the entrance 4 for drawing the electric wire C into the laying space 61 of the gutter body T1, and the entrance 4 and the laying space 61 of the gutter body T1 are in communication with each other in the passage space 2. Therefore, the U-shaped cross-section perpendicular to the first equilateral portion 3b which forms the bottom wall portion 5 of the passage space forming portion 3 is deepest at the entrance 4 and gradually becomes shallower as it moves away from the entrance 4. The distance between the pair of left and right locking portions 1, that is, the distance (width) W2 between the pair of second side wall portions 6b is narrower than the distance (width) W1 (see Figure 9) between the pair of first side wall portions 6a that form the entrance 4. As a result, the U-shaped passage space 2 changes in depth so as to gradually become shallower along the direction of passage of the electric wire C, and its width narrows sharply at the portion of the pair of left and right locking portions 1, forming a stepped shape. Accordingly, the side wall portion 6 of the passage space forming portion 3 consists of two parts: a wide first side wall portion 6a that forms the entrance opening 4 and a narrow second side wall portion 6b that forms the pair of left and right locking portions 1, and the bottom wall portion 5 consists of first and second bottom wall portions 5a and 5b that correspond to the first and second side wall portions 6a and 6b, respectively.A stepped portion 5c is formed at the connection point between the first and second bottom wall portions 5a and 5b [see Figure 9(a)].

[0025] The upper ends of the pair of narrow second side wall portions 6b of the passage space forming portion 3 extend further upward relative to the upper ends of the pair of wide first side wall portions 6a, and a portion forming one of each of the left and right pairs of U-shaped rear locking portions 1a and front locking portions 1b, which have significantly different lengths of opposing sides in the vertical direction, is integrally formed on the narrow second side wall portion 6b, protruding outward. The left and right pair of rear locking portions 1a and front locking portions 1b are the portions that attach the attachment body A1 to the gutter body T1 by a locking structure, by inserting them into the gutter body T1 through the opening 62 while the pair of second side wall portions 6b are bent and deformed inward, and then releasing the bend deformation, thereby locking to the back and front sides of the folded portion 65 of the gutter body T1, respectively. The protruding length of the rear locking portion 1a relative to the narrow second side wall portion 6b is much shorter than the protruding length of the front locking portion 1b in order to minimize the bending deformation of the pair of second side wall portions 6b. The left and right pair of rear locking portions 1a are structured to lock to the back side of the pair of folded portions 65 of the gutter body T1 by inserting them into the gutter body T1 through the opening 62 while the narrow left and right pair of second side wall portions 6b are bent inward, and then releasing the bending deformation. In order to allow the narrow left and right second side wall portions 6b to bend easily, a plurality of slits 11 are formed in the portion of the narrow left and right second side wall portions 6b where the locking portion 1 is provided, in a direction perpendicular to the upper end surface of the wide first side wall portion 6a (the slanted side portion 3a of the passage space forming portion 3), and the locking portion 1 is divided into multiple parts. Therefore, the left and right pair of rear-side locking portions 1a and front-side locking portions 1b are formed in multiple quantities (three in this embodiment) along the direction of the slanted edge portion 3a of the passage space forming portion 3. The multiple slits 11 make the pair of second side wall portions 6b more susceptible to inward bending deformation.

[0026] The upper end of one of the pair of wide first side wall portions 6a of the mounting body A1 has a ring fitting portion 12 formed along its entire length, into which a partially missing ring portion 41 of the restrictor A2 is fitted. A through hole portion 13 is formed in the middle of the direction in which the ring fitting portion 12 is formed, penetrating vertically to allow the partially missing ring portion 41 to rotate. On the outer surface of the other of the pair of wide first side wall portions 6a, an assembly locking projection 14 is formed along the longitudinal direction Q of the gutter body T1, allowing the mounting body A1, which is attached to the gutter body T1, to slide along the longitudinal direction Q of the gutter body T1, thereby maintaining the state in which the restrictor A2 is assembled to the mounting body A1. The length of the assembly locking projection 14 protruding from the wall surface of the wide first side wall portion 6a is tapered, increasing in the direction of sliding movement of the restrictor A2 during assembly. On the outer surface of the wide first side wall portion 6a, on the side in front of the assembly locking projection 14 (the side of the retraction opening 4), a stopper projection 15 is formed to rotate the restricting body A2, which is assembled to the mounting body A1, laterally to connect the passage space 2 to the outside. This involves sliding the restricting body A2 in the opposite direction to when it was assembled, positioning the partially missing ring portion 41 of the restricting body A2 in the through hole portion 13 of the ring outer fitting portion 12, and then rotating the entire restricting body A2 outward around the center of the partially missing ring portion 41 as the axis, thereby retracting it from the upper surface of the mounting body A1.

[0027] As shown in Figure 7, each end face 17 on the side of the second side wall portion 6b facing the entrance opening 4 is formed in an exposed state, and a flange portion 16 is formed on the division portion of the plurality of divided front locking portions 1b that is closest to the entrance opening 4, and is flush with the end face 17 of the second side wall portion 6b. On the inner circumferential surface of the passage space forming portion 3, which has a U-shaped cross-section, a retaining locking portion 18 is formed on the first bottom wall portion 5a and the pair of first side wall portions 6a, which locks onto the annular recess 71 of the corrugated conduit P1 inserted into the interior from the entrance opening 4 or the lock nut 72 connected to the conduit connector K, allowing the corrugated conduit P1 or the conduit connector K to be connected to the attachment body A. In the portion of the pair of first side wall portions 6a that form the passage space forming portion 3 that is close to the first bottom wall portion 5a, a pair of confirmation windows 19 are formed opposite each other to confirm the presence or absence of electric wires C in the passage space 2.

[0028] At the end of the passage space forming section 3 that forms the passage space 2 for the electric wire C, opposite to the entry port 4, a wire passage guide plate section 21 is integrally provided at a position extending from the pair of locking sections 1 to guide the electric wire C as it is drawn from the passage space 2 through the first and second bottom wall sections 5a and 5b of the passage space forming section 3 into the laying space 61 of the gutter body T1. When attached to the gutter body T1, the wire passage guide plate section 21 is arranged along the longitudinal direction of the gutter body T1. That is, as shown in Figure 9(a), the wire passage guide plate section 21 is formed by connecting the end of the second bottom wall section 5b of the passage space forming section 3 to the pair of second side wall sections 6b so that it can be curved and extended in that manner, and its cross-section is curved so that both ends in the width direction are higher than the center. On the outer surfaces of the pair of second side wall portions 6b, immediately before they are connected to the wire passage guide plate portion 21, a fixing plate portion 22 is integrally provided, which is an extension of the pair of left and right front-side locking portions 1b. The fixing plate portion 22 has a pair of screw insertion holes 23 for inserting movement restricting screws 81 that are partially screwed into a pair of folded portions 65, in order to restrict the sliding of the attachment body A1, which is attached to the gutter body T1 with a locking structure, in the longitudinal direction of the gutter body T1.

[0029] To attach the attachment body A1 to the gutter body T1, the pair of second side wall portions 6b, each having a pair of left and right locking portions 1, are bent inward. Then, the pair of left and right rear locking portions 1a are inserted into the gutter body T1 through the opening 62, and the bending deformation is released. As shown in Figures 3 and 15(b), the pair of left and right rear locking portions 1a and front locking portions 1b are locked to the back and front sides of the folded portion 65 of the gutter body T1, respectively. The pair of rear locking portions 1a and front locking portions 1b on the inside and outside of the gutter body T1 sandwich the pair of folded portions 65 of the gutter body T1, and the attachment body A1 is attached to the gutter body T1. Only the left and right pair of rear-side locking portions 1a and the wire passage guide plate portion 21 of the mounting body A1 are located inside the gutter body T1, while all other parts are located outside the gutter body T1, facing its opening 62.

[0030] Next, with reference to Figures 1 to 5 and Figures 10 to 14, we will describe a restricting body A2 whose function is to prevent the restricting body A1 from being detached from the gutter body T1 by the pair of left and right rear-side locking portions 1a of the restricting body A1 bending inward when it is integrally assembled with the restricting body A1 attached to the gutter body T1, thereby releasing the locking of the pair of left and right rear-side locking portions 1a to the folded portion 65 of the gutter body T1.

[0031] The restrictor A2 has a flat main plate portion 31, with first and second flange portions 32a and 32b formed downwards at one side end and the front end, respectively. A protruding plate portion 33 is provided projecting forward from the center of the main plate portion 31 in the width direction. A U-shaped deformation restrictor portion 34 is provided projecting upwards from the tip of the protruding plate portion 33, which is inserted between a pair of left and right rear-side locking portions 1a of the attachment body A1 to restrict the inward bending deformation of a pair of left and right second side wall portions 6b. On the back side of the main plate portion 31, in the center in the width direction, a downward bulge portion 35 is formed, which is the same width as the deformation restrictor portion 34, and the amount of bulge gradually increases from the main plate portion 31 toward the second flange portion 32b from the front side of the deformation restrictor portion 34. The downward bulge portion 35 has a hollow structure that opens only on the side of the second flange portion 32b. The downward bulge portion 35 is positioned in the center of the upper end opening 7 of the pair of left and right first side wall portions 6a (see Figures 9(a) and 17) when the regulating body A2 is assembled to the mounting body A1. The second flange portion 32b at the front end of the main plate portion 31 is positioned across the entire width of the pair of left and right first side wall portions 6a when the regulating body A2 is assembled to the mounting body A1, and a closing plate portion 36 is formed to close the gap diagonally above the entrance opening 4 when the end of the corrugated conduit P1 is inserted into the entrance opening 4. The tip of the closing plate portion 36 is formed in an arc shape corresponding to the outer diameter of the corrugated conduit P1.

[0032] In the first flange portion 32a at the side end of the main plate portion 31, a wall insertion slit 37 is formed in the front-rear direction (the sliding movement direction Q of the regulating body A2 during assembly) into which the first side wall portion 6a of the pair of first side wall portions 6a of the mounting body A1, into which the mounting locking projection 14 and stopper projection 15 are provided on the outer surface, is inserted when the regulating body A2 is assembled to the mounting body A1. The wall insertion slit 37 opens to the rear and is closed to the front. On the inner surface of the first flange portion 32a of the main plate portion 31, a projection insertion groove 38 is formed along the entire length in the front-rear direction, opening to the side of the wall insertion slit 37 and accommodating the mounting locking projection 14 and stopper projection 15 of the mounting body A1. The rear end of the projection insertion groove 38 is closed by a locking portion 39 that locks with the mounting locking projection 14. The inner surface of the locking portion 39 is flush with the inner surface of the wall insertion slit 37, but its outer surface and lower surface protrude both to the side and below the first flange portion 32a. At the far end of the edge of the substantially rectangular main plate portion 31 opposite to the edge on which the first flange portion 32a is provided, there is a partially missing ring portion 41 that fits onto a ring outer fitting portion 12 provided on one end face of a pair of first side wall portions 6a of the attachment body A1. In Figure 10(b), 42 indicates a through hole formed in the second flange portion 32b when the projection insertion groove 38 is injection molded into the first flange portion 32a.

[0033] Next, the attachment and detachment of the attachment body A to the gutter body T1 will be explained. In order to attach the attachment body A1 to the gutter body T1, as shown by the dashed line in Figure 15(b), the pair of second side wall portions 6b that have been deformed inward are passed between the pair of folded portions 65 of the gutter body T1, and then the deformation is released. At this point, a pair of back-side locking portions 1a and a pair of front-side locking portions 1b are positioned on the back and front sides of the pair of folded portions 65, respectively, and as shown in Figures 3 and 15, the attachment body A1 is attached to the gutter body T1 with the slanted side portion 3a of the wire passage guide plate portion 21 parallel to the bottom wall portion 63 of the gutter body T1. When the mounting body A1 is attached to the gutter body T1, only the pair of rear-side locking parts 1a and the wire passage guide plate part 21 are inserted inside the gutter body T1, while the remaining part is exposed to the outside and, in a front view, constitutes the passage space forming part 3. The mutually orthogonal entry openings 4 and the first and second bottom wall parts 5a and 5b are positioned to intersect the mounting body A1 at an angle of approximately 45°. In this state, a gap exists between the pair of front-side locking parts 1b of the mounting body A1 and the pair of folded-back parts 65 of the gutter body T1, so the mounting body A1 can slide relative to the gutter body T1.

[0034] In the above state, as shown in Figures 3 and 5(a), when the restrictor A2 is positioned on the side of the inlet 4 of the attachment body A1 attached to the gutter body T1, and the restrictor A2 is brought into contact with the pair of folded portions 65 of the attachment body A1, and the restrictor A2 is slid toward the attachment body A1, the partially missing ring portion 41 of the restrictor A2 is fitted onto the ring outer fitting portion 12 of the attachment body A1, and the upper end of one of the first side walls 6a of the attachment body A1 is inserted into the wall insertion slit 37 of the restrictor A2, and thereafter the plate-shaped locking portion 39, which is positioned on the opposite side of the partially missing ring portion 41 with the downward bulging portion 35 of the restrictor A2 in between, comes into contact with the stopper projection 15 formed on the outer surface of one of the first side walls 6a of the attachment body A1, and the stopper When the projection 15 is pressed, the component of the pressing force that faces the inner retraction opening 4 causes the one first side wall portion 6a to bend inward. In this state, as the locked portion 39 slides along the tapered outer surface of the assembly locking projection 14, the inward bending deformation of the one first side wall portion 6a is maintained. When the locked portion 39 passes the portion of the assembly locking projection 14, the inward bending deformation of the one first side wall portion 6a is released, the closing plate portion 36 of the regulating body A2 comes into contact with the end face of the first side wall portion 6a of the mounting body A1, and the locked portion 39 is locked to the assembly locking projection 14, so that the regulating body A2 is integrally assembled to the mounting body A1 attached to the gutter body T1, as shown in Figures 1 and 4. In this example, the mounting body A1 is attached to the gutter body T1, and the restrictor A2 is then assembled integrally with the mounting body A1. However, it is also possible to attach the mounting body A1, to which the restrictor A2 has already been assembled, to the gutter body T1.

[0035] When the restrictor A2 is integrally assembled to the mounting body A1 attached to the gutter body T1, the deformation restricting portion 34 of the restrictor A2 is inserted between a pair of second side wall portions 6b of the mounting body A1, thereby restricting the inward bending deformation of the pair of second side wall portions 6b, and preventing the release of the locking between the pair of folded portions 65 of the gutter body T1 and the pair of back-side locking portions 1a of the mounting body A1, making it impossible to remove the mounting body A1 from the gutter body T1. As shown in Figure 5(b), the assembly locking projection 14 and stopper projection 15 of the mounting body A1 are both inserted and housed in the projection insertion groove 38 of the restrictor A2. The mounting body A attached to the gutter body T1 is slidable along the direction Q in which the electric wire C is pulled in. To fix it in a predetermined position, movement-restricting screws 81 (see Figure 2) are inserted into the pair of screw insertion holes 23 of the fixing plate portion 22 of the mounting body A1 attached to the gutter body T1, and partially screwed into each folded portion 65 of the gutter body T1. This fixes the mounting body A so that it cannot slide relative to the gutter body T1. As shown in Figures 1 and 2, the opening 62 of the gutter body T1 is closed by the cover T2.

[0036] Conversely, after the electric wire C has been pulled in, if the condition of the pulled-in state of the electric wire C is checked or if a problem occurs with the pulled-in of the electric wire C, the attachment A attached to the gutter body T1 is removed from the gutter body T1 and checked. Here, the ring outer fitting portion 12 of the attachment body A1 and the partially missing ring portion 41 of the restrictor A2 that is fitted onto the ring outer fitting portion 12 constitute a slide operation portion 10 (see Figures 4, 5, and 13) that slides the restrictor A2 in a direction away from the attachment body A1. With the attachment A attached to the gutter body T1, the entire slide operation portion 10 protrudes laterally from the edge in the width direction of the gutter T (see Figures 4 and 5). To remove the attachment A from the gutter body T1, each operation should be performed in the reverse order of the installation. In other words, by using the slide operating part 10 which protrudes laterally from the widthwise edge of the gutter T, if an excessive external force in the opposite direction to the retraction direction Q is applied to the partially missing ring portion 41 that constitutes the operating part 10, the locking projection 14 of the mounting body A1 and the locked portion 39 of the restricting body A2 are released, and the restricting body A2 slides in a direction away from the mounting body A1, causing the deformation restricting portion 34 of the restricting body A2 to slip out from between the pair of second side wall portions 6b of the mounting body A1. As a result, the pair of second side wall portions 6b become able to bend and deform inward, releasing the locking between the pair of back side locking portions 1a of the restricting body A2 and the pair of folded portions 65 of the gutter body T1, and the mounting body A1 is removed from the gutter body T1.

[0037] As shown in the schematic diagram of Figure 17, the gutter body T1 is suspended from the ceiling or the like at multiple points along its longitudinal direction via suspension fittings 82 and suspension bolts 83. In this state, in order to pull the electric wire C from the bundle of electric wires C0 bundled on the floor surface F into the laying space 61 of the gutter body T1, this is done by pulling a pull wire 84 that is tied to the end of the electric wire C and placed in the laying space 61 of the gutter body T1. By pulling the pull wire 84, the starting position S of laying the electric wire C is moved from the position S0 directly above the bundle of electric wires C0 in the gutter body T1 to the part where the attachment A, which is an "electric wire pull-in guide," is placed, and the electric wire is pulled into the laying space 61 of the gutter body T1 through the entry port 4 and passage space 2 of the attachment A. In this case, if the attachment A is not attached to the gutter body T1, the starting position for laying the electric wire C will be the portion of the suspension fitting 82, and the electric wire C will be pulled in while sliding against the suspension fitting 82, thus being damaged. However, because the attachment A is attached to the gutter body T1, direct contact of the electric wire C with the suspension fitting 82 is avoided, and damage is prevented. In the above example, the attachment A is positioned away from the suspension fitting 82, but the attachment A may also be positioned closer to the suspension fitting 82. In this case, the end face of the fixing plate portion 22 of the attachment A abuts against the suspension fitting 82, restricting further movement, and the electric wire passage guide plate portion 21 is positioned inside the suspension fitting 82. The electric wire passage guide plate portion 21 is formed to be slightly longer than the width of the suspension fitting 82, so that sliding contact between the electric wire C and the suspension fitting 82 is reliably prevented.

[0038] Furthermore, as shown in Figure 18, one end of the corrugated conduit P1 can be inserted in a locked position into the portion of the passage space 2 of the mounting body A1 formed by the first bottom wall portion 5a and the pair of first side wall portions 6a. That is, with the mounting body A1 attached to the gutter body T1, one end of the corrugated conduit P1 is inserted from the upper end opening 7 of the pair of first side wall portions 6a of the mounting body A1 until it contacts the stepped portion 5c of the bottom wall portion 5. When the U-shaped locking portion 18 formed on the inner circumferential surface of the first bottom wall portion 5a and the pair of first side wall portions 6a that are close to the entrance opening 4 of the mounting body A1 is inserted into a predetermined annular recess 71 of the corrugated conduit P1, the opposing inner surface of the annular recess 71 and the locking portion 18 are locked together, and the corrugated conduit P1 cannot be pulled out of the entrance opening 4. Subsequently, when the restrictor A2 is integrally assembled to the mounting body A1, the upper end openings 7 of the pair of first side wall portions 6a of the mounting body A1 are covered by the lower bulging portion 35 of the restrictor A2, and the opening formed in the obliquely upper portion of one end of the corrugated conduit P1, which is inserted into the mounting body A1 with one end in a locking state, is closed by the closing plate portion 36 of the restrictor A2, whose obliquely lower end surface is formed in an arc shape corresponding to the outer diameter of the corrugated conduit P1. The portion of the electric wire C laid in the laying space 61 of the mounting body A that is routed outside the mounting body A is housed and protected within the corrugated conduit P1.

[0039] As described above, when the electric wire C is laid in the laying space 61 of the mounting body A using the corrugated conduit P1, if for any reason it becomes necessary to check the laying status of the electric wire C, applying a large force in the separation direction to the restrictor A2, which is integrally assembled to the mounting body A1 and is attached to the mounting body A1 with a locking structure, will release the locking between the assembly locking projection 14 of the mounting body A1 and the locked portion 39 of the restrictor A2, as shown in Figure 16. After that, the locked portion 39 will come into contact with the stopper projection 15 of the mounting body A1, and the mounting body A1 and the restrictor A2 will be released from their assembled state and become connected. In this state, by bending and deforming the pair of second side wall portions 6b of the mounting body A1 inward, the locking between the pair of folded portions 65 of the gutter body T1 and the pair of rear side locking portions 1a of the mounting body A1 is released, as shown in Figure 19, and the mounting body A1 is removed from the gutter body T1 while the restrictor A2 remains connected, exposing a portion of the electric wire C.

[0040] The mounting body A1 and the restrictor A2 are connected in the state described above, and the slide operating part 10 is located outside the gutter body T1. As shown in Figure 19, when the restrictor A2 is moved as far back as possible relative to the mounting body A1 while both A1 and A2 are connected, and the restrictor A2 is rotated to the side of the mounting body A1 with the center of the partially missing ring portion 41 of the restrictor A2 as the pivot axis, the upper end openings 7 of the pair of first side wall portions 6a of the mounting body A1 are opened, separating the mounting body A1 from the electric wires C routed in the internal passage space 2, and allowing for inspection of the various states of the electric wires C.

[0041] Next, with reference to Figure 20, the case in which the conduit connector K is attached to the attachment body A attached to the gutter body T1 will be described. The conduit connector K has a connector body 91 that is bent into an elbow shape at an angle of 135°, and a fixing flange portion 92 is provided on the outside of one of the starting points of the bend. On the outer circumferential surface of one side of the fixing flange portion 92 of the connector body 91, there is a male threaded portion 94 that is screwed with a lock nut 93, and the other side of the fixing flange portion 92 of the connector body 91 is a pipe insertion portion 91a into which one end of another corrugated conduit P2 is inserted, and a fastening holder 95 for fastening the inserted corrugated conduit P2 to the pipe insertion portion 91a is fitted onto the pipe insertion portion 91a.

[0042] Then, the screwing position of the lock nut 93 is adjusted so that the distance between the tip surface of the lock nut 93, which is screwed onto the male threaded portion 94 of the conduit connector K, and the opposing surface of the fixing flange portion 92 corresponds to the distance between the pull-in opening 4 of the mounting body A1 and the U-shaped retaining lock portion 18. In this state, the base end of the conduit connector K is inserted into the passage space 2 through the upper end opening 7 of the mounting body A1, and the lower end of the fixing flange portion 92 is inserted. When the regulating body A2 is brought into contact with the first bottom wall portion 5a of the mounting body A1, and the tip surface of the lock nut 93 is positioned on the back side of the retaining lock portion 18 of the mounting body A1, the U-shaped portion of the lower end of the retaining lock portion 18 is sandwiched between the fixing flange portion 92 of the conduit connector K and the lock nut 93, so that the base end of the conduit connector K is positioned between the pair of first side wall portions 6a of the mounting body A1 in a manner that prevents it from being pulled out. Subsequently, when the regulating body A2 is integrally assembled to the mounting body A1, the upper end openings 7 of the pair of first side wall portions 6a of the mounting body A1 are closed by the downward bulging portion 35 of the regulating body A2, so that the base end of the conduit connector K cannot be pulled out upwards either.

[0043] In the above embodiment, the attachment A is attached to the opening 62 of the gutter body T1, which is positioned with the opening 62 facing downwards. However, there are also examples of use where the attachment A is attached to the opening 62 of the gutter body T1 which faces upwards. [Explanation of Symbols]

[0044] A: Attachment (wire pull-in guide) A1: Attachment body A2: Regulatory body C: Electrical wires (wiring and piping materials) C0: Wire bundle (wiring / piping material bundle) K: Conduit connector P1,P2: Corrugated conduit Q: Sliding direction of the regulatory body (direction of wire entry) T: Hi T1: Gutter body T2: Lid body S0: Directly above the wire bundle S: Laying start position 1: Locking part 1a: Rear side locking part 1b: Front side locking part 2: Passage space 3: Passage space forming part 4: Entrance 5: Bottom wall 5a: 1st bottom wall part 5b: Second bottom wall part 5c: Stepped section 6: Side wall section 6a: First side wall part 6b: Second side wall part 10: Slide operation section 12: Ring outer fitting part 13: Through hole 14: Assembly locking projection 15: Stopper protrusion 18: U-shaped locking mechanism 22: Fixed plate part 23: Screw insertion hole 31: Main body panel 34: Deformation control section 39:Locked part 41: Partially missing ring section 61: Installation space 65: Folding section 71: Annular recess (corrugated pipe) 72: Lock nuts 81: Movement Restriction Bis 82: Hanging hardware 83: Suspension bolt 84: Pull wire

Claims

1. A mounting body for a gutter having a groove shape with a pair of inwardly folded portions, and a longitudinally continuous opening formed between the pair of folded portions, An attachment body is attached to the gutter by a locking mechanism comprising: a pair of back-side locking parts positioned on the back side of the pair of folded parts, which are inserted from the opening and brought close together to each other until they can pass between the pair of folded parts; and a pair of front-side locking parts positioned on the front side of the pair of folded parts, which cooperate with the pair of back-side locking parts to sandwich the pair of folded parts. A restricting body is attached to the mounting body and positioned between the pair of rear-side locking portions, and is equipped with a deformation restricting portion that prevents the pair of rear-side locking portions from approaching each other and releasing the locking with the folded portion, An attachment body characterized by being composed of the following.

2. The mounting body has a passage space inside through which wiring and piping materials can pass, and an inlet for the wiring and piping materials is formed at the upstream end along the direction of passage of the passage space. The mounting body according to claim 1, characterized in that the restricting body can be assembled to the mounting body by sliding along the gutter in the direction in which the wiring and piping materials are drawn in through the passage space and into the gutter.

3. The aforementioned entry port is such that the end of the corrugated conduit can be inserted into it. The mounting body according to claim 2, characterized in that a retaining locking portion is formed on the inner circumferential surface of the mounting body body on the inside of the entry opening, which is inserted into and locked into the annular recess at the end of the corrugated conduit.

4. The mounting body has a substantially U-shaped cross-section, and is flexible and deformable such that the pair of back-side locking portions provided at both ends of the cross-sectional view are close to each other. The mounting body according to claim 2, characterized in that the restricting body is positioned to span both ends of the mounting body in a cross-sectional view when assembled to the mounting body, and when assembled, it can be displaced from the spanning position to open the space between the two ends, allowing the passage space of the mounting body to communicate with the outside.

5. The mounting body and the restrictor have a sliding operation part that allows the mounting body and the restrictor to be released from assembly by sliding movement, and the sliding operation part is located outside the gutter when the restrictor is assembled to the mounting body, as described in any one of claims 1 to 4.

6. The mounting body according to any one of claims 1 to 4, characterized in that the entry port is provided with a connector mounting portion that can be used to attach the conduit connector, such that the inside of the conduit connector to which the conduit is connected faces the passage space.

7. A method for laying wiring and piping materials inside a trough enclosed by a bottom wall extending in the longitudinal direction, a pair of side walls erected facing each other from both ends in the width direction of the bottom wall, and a pair of folded-back sections where the tips of the pair of side walls are folded inward so as to face the side walls, thereby forming a space for laying wiring and piping materials inside, with an opening extending in the longitudinal direction formed between the tips of the pair of folded-back sections, and the trough suspended with the opening facing downward or upward, The installation start position is defined as a specific location along the longitudinal direction of the gutter where the wiring and piping materials are drawn from the outside into the internal installation space. A guide device for pulling wiring and piping materials into the installation space is installed between the pair of folded sections, which intersect the longitudinal direction of the gutter and cross the opening, and the suspension fittings for suspending the gutter, which are positioned further down the installation site from the above position where the wiring and piping materials will be laid. A method for laying wiring and piping materials, characterized in that a pull wire connected to the end of the wiring and piping material is pulled within the laying space, thereby pulling the wiring and piping material into the laying space without contact with the suspension fitting, with the installation position of the pull-in guide device as the laying start position.

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