Locking structure, electrical junction box and wiring harness

Abstract

Locking structure (1) which features: an engaging body (10) with which either a first assembly element (110) or a second assembly element (120) is equipped, which are to be assembled together by a linear assembly operation, and which includes an engaging section (11) and a first and a second guided rail section (12, 13) which are arranged opposite each other, with the engaging section (11) being inserted between them, and which extend in a direction of assembly of the first and the second assembly element (110, 120) and in a direction of removal from a first forming tool; and an engaging body (20) with which the other of the first and second assembly elements (110, 120) is equipped and which includes an engaging section (21) that engages in the engaged section (11) when the assembly of the first and second assembly elements (110, 120) is complete, and a first and a second guide rail section (22, 23) that are arranged opposite each other, with the engaging section (21) positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool, guiding the first and the second guided rail section (12, 13) until the engaged section (11) and the engaging section (21) reach an engagement termination position, and inserting the first and the second guided rail section (12, 13) between them when the engagement termination position is reached, wherein the first guided rail section (12) includes a guided wall surface (12A) which is arranged opposite the first guide rail section (22) in a direction of interlocking by the first guide rail section (22), the second guided rail section (13) includes a guided wall surface (13A) which is arranged opposite the second guide rail section (23) in a direction of interlocking by the second guide rail section (23), the first guide rail section (22) includes a guide wall surface (22A) which guides the guided wall surface (12A) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (12A) of the first guided rail section (12) when the engagement termination position is reached, the second guide rail section (23) includes a guide wall surface (23A) which guides the guided wall surface (13A) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (13A) of the second guided rail section (13) when the engagement termination position is reached, Each guided wall surface (12A, 13A) is divided into a first and a second guided area (T1, T2) in the direction of assembly and includes a first guided part (12A1, 13A1) of the first guided area (T1) and a second guided part (12A2, 13A2) of the second guided area (T2) as a side on which guidance through the guide wall surface (22A, 23A) begins, the first guided part (12A1, 13A1) is inclined at an angle of inclination of the draft angle of the first mold, the second guided part (12A2, 13A2) is inclined at a greater angle than the angle of inclination of the draft angle of the first mold, and Each guide wall surface (22A, 23A) includes a first guide part (22A1, 23A1) which is inclined at an angle of inclination corresponding to the angle of inclination of the first guided part (12A1, 13A1) and is arranged parallel to the first guided part (12A1, 13A1) when the engagement end position is reached, and includes a second guide part (22A2, 23A2) which is inclined at an angle of inclination corresponding to the angle of inclination of the second guided part (12A2, 13A2) and is arranged parallel to the second guided part (12A2, 13A2) when the engagement end position is reached.

Description

Background of the invention 1. Field of the invention

[0001] The present invention relates to a locking structure, an electrical junction box and a wiring harness. 2. Description of the related technology

[0002] A conventional locking structure is known for holding two mounting elements in an assembly state. The locking structure comprises an engaging body, with which one of the two mounting elements is equipped, and an engaging body, with which the other mounting element is equipped. The locking structure holds the two mounting elements in the assembly state by means of an engagement between an engaging section of the engaging body and an engaging section of the engaging body, once the assembly of the two mounting elements is complete.For example, the locking structure is used in an electrical junction box that accommodates a receiving object such as an electronic component or block, or in an electrical junction box that accommodates an electrical conductor along with the receiving object and is contained within a wiring harness, with the electrical conductor extending outwards (Japanese Patent Application Publication No. 10-70811 and Japanese Patent Application Publication No. 2004-72941). The receiving object and the housing are mounting elements within the electrical junction box, and the locking structure is used to hold the receiving object, which is received into and mounted on the housing, in the installed state.The locking structure is equipped with a guided rail section and a guide rail section for guiding the engaging body along the engaging body until the engaging section and the engaging section reach an engagement termination position. During the guiding process, the locking structure engages two guided rail sections of the engaging body between two guide rail sections of the engaging body.

[0003] If the two mounting elements are made of a synthetic resin, the removal direction from a mold is determined to run along the mounting or removal direction of the mounting elements, and an inclined surface at a very small angle, corresponding to the draft angle of the mold, is formed, for example, on a wall surface or an end face. The engaging body and the engaging body are formed integrally with the mounting elements.In this way, the direction of removal from the forming tool in the engaging body and the engaging body is defined such that it runs along a direction in which the guided rail section and the guide rail section extend (a direction in which the sections are guided together), and an inclined surface at a very small angle of inclination in accordance with the draft angle of the forming tool is formed on a wall surface of both the guided rail section and the guide rail section. However, the inclined surface of the guided rail section and the inclined surface of the guide rail section are not necessarily arranged parallel to each other in the insertion direction when the engagement termination position is reached, and the size of the gap between the inclined surfaces may differ depending on the position.For example, if the inclined surfaces are arranged opposite each other and inclined in opposite directions, the size of the gap between the inclined surfaces will differ depending on their position. Similarly, if the inclined surfaces are arranged opposite each other and inclined in the same directions but at different angles, the size of the gap between the inclined surfaces will also differ depending on their position. Accordingly, in a conventional locking mechanism, there may be play between the inclined surfaces of the guided rail section and the guide rail section when engagement between the engaged and disengaged sections is complete.Furthermore, in the conventional locking structure, the inclined surfaces of the guided rail section and the guide rail section come into contact with each other before an engagement between the engaging section and the engaging section is completed, which may reduce the simplicity of a connection between the engaging body and the engaging body. Overview of the invention

[0004] The present invention is intended to provide a locking structure, an electrical junction box and a wiring harness that are able to improve the ease of connection and reduce play.

[0005] To solve the aforementioned problem and achieve the objective, a locking structure according to one aspect of the present invention comprises an engaging body with which either a first mounting element or a second mounting element is equipped, which are to be assembled together by a linear assembly process, and which includes an engaging section and a first and a second guided rail section which are arranged opposite each other, with the engaging section being inserted between them, and which extend in a direction of assembly of the first and second mounting elements and in a direction of removal from a first forming tool; and an engaging body with which the other of the first and second mounting elements is equipped and which has an engaging section which engages in the engaging section.when the assembly of the first and second assembly elements is complete, and includes a first and a second guide rail section arranged opposite each other, with the engaging section positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool, guide the first and second guided rail sections until the engaged section and the engaging section reach an engagement termination position, and insert the first and second guided rail sections between them when the engagement termination position is reached, wherein the first guided rail section includes a guided wall surface arranged opposite the first guide rail section in a direction of insertion by the first guide rail section, and the second guided rail section includes a guided wall surface.which is arranged opposite the second guide rail section in a direction of interlocking by the second guide rail section, the first guide rail section includes a guide wall surface that guides the guided wall surface of the first guided rail section until the engaged section and the engaging section reach the engagement end position, and is arranged opposite the guided wall surface of the first guided rail section when the engagement end position is reached, the second guide rail section includes a guide wall surface that guides the guided wall surface of the second guided rail section until the engaged section and the engaging section reach the engagement end position, and is arranged opposite the guided wall surface of the second guided rail section when the engagement end position is reached,Each guided wall surface is divided into a first and a second guided area in the direction of assembly and includes a first guided part of the first guided area and a second guided part of the second guided area as a side on which guidance through the guide wall surface begins, the first guided part is inclined at an angle of inclination equal to the draft angle of the first mold, the second guided part is inclined at a greater angle than the draft angle of the first mold, and each guide wall surface includes a first guide part inclined at an angle of inclination equal to the angle of inclination of the first guided part and arranged opposite and parallel to the first guided part when the engagement end position is reached, and includes a second guide part inclined at an angle of inclination equal to the angle of inclination of the second guided part.and is arranged opposite, parallel to the second guided part, when the engagement end position is reached.

[0006] According to a further aspect of the present invention, in the locking structure in the engaging body, an access for the first and the second guided rail section is preferably formed through the first guide parts, which are arranged opposite each other between the first and the second guide rail section.

[0007] According to a further aspect of the present invention, in the locking structure, the first and the second guided rail section preferably each comprise a first guided wall surface as a guided wall surface and a second guided wall surface as a guided wall surface, which is positioned closer to the engaging section than the first guided wall surface. The first guide rail section comprises a first guide wall surface as a guide wall surface, which guides the first guided wall surface of the first guided rail section until the engaging section and the engaging section reach the engagement termination position, and is arranged opposite the first guided wall surface of the first guided rail section. A second guide wall surface as a guide wall surface guides the second guided wall surface of the first guided rail section.until the engaged section and the engaging section reach the engagement termination position, and is arranged opposite the second guided wall surface of the first guided rail section, and the second guided rail section includes a first guide wall surface as a guide wall surface that guides the first guided wall surface of the second guided rail section until the engaged section and the engaging section reach the engagement termination position, and is arranged opposite the first guided wall surface of the second guided rail section, and a second guide wall surface as a guide wall surface that guides the second guided wall surface of the second guided rail section until the engaged section and the engaging section reach the engagement termination position, and is arranged opposite the second guided wall surface of the second guided rail section.

[0008] To achieve this objective, an electrical junction box according to a further aspect of the present invention comprises a housing that receives a receiving object inside; and a locking structure that holds a first mounting element and a second mounting element, which are to be assembled together by a linear assembly process, in an assembled state, wherein the receiving object is an electronic component that is electrically connected to an electrical conductor inside the housing, or a body for holding an electronic component that receives and holds the electronic component inside the housing, wherein the housing includes the second mounting element that receives the receiving object as the first mounting element and assembles it by a linear assembly process, wherein the locking structure comprises an engaging body with which either the first or the second mounting element is equipped.and comprising an engaging section and a first and a second guided rail section arranged opposite each other, with the engaging section inserted between them, and extending in a direction of assembly of the first and second assembly elements and a direction of removal from a first forming tool; and comprising an engaging body with which the other of the first and second assembly elements is equipped and comprising an engaging section which engages in the engaging section when the assembly of the first and second assembly elements is completed, and a first and a second guide rail section arranged opposite each other, with the engaging section positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool,guide the first and second guided rail sections until the engaged section and the engaging section reach an engagement termination position, and insert the first and second guided rail sections between themselves when the engagement termination position is reached, wherein the first guided rail section includes a guided wall surface that is arranged opposite the first guide rail section in a direction of insertion by the first guide rail section, the second guided rail section includes a guided wall surface that is arranged opposite the second guide rail section in a direction of insertion by the second guide rail section, and the first guide rail section includes a guide wall surface that guides the guided wall surface of the first guided rail section.until the engaged section and the engaging section reach the engagement termination position, and is arranged opposite the guided wall surface of the first guided rail section when the engagement termination position is reached, the second guided rail section includes a guide wall surface that guides the guided wall surface of the second guided rail section, until the engaged section and the engaging section reach the engagement termination position, and is arranged opposite the guided wall surface of the second guided rail section when the engagement termination position is reached, each guided wall surface is subdivided into a first and a second guided area in the direction of assembly and includes a first guided part of the first guided area and a second guided part of the second guided area as one side,where guiding through the guide wall surface begins, the first guided part is inclined at an angle of inclination equal to the draft angle of the first mold, the second guided part is inclined at a greater angle than the draft angle of the first mold, and each guide wall surface includes a first guide part inclined at an angle of inclination equal to the angle of inclination of the first guided part and arranged opposite it parallel to the first guided part when the engagement end position is reached, and a second guide part inclined at an angle of inclination equal to the angle of inclination of the second guided part and arranged opposite it parallel to the second guided part when the engagement end position is reached.

[0009] To achieve this objective, a cable harness according to a further aspect of the present invention comprises a receiving object; an electrical conductor; a housing that receives the receiving object and the electrical conductor inside, the electrical conductor extending from the inside to the outside; and a locking structure that holds a first mounting element and a second mounting element, which are to be assembled together by a linear assembly process, in an assembled state, wherein the receiving object is an electronic component that is electrically connected to the electrical conductor inside the housing, or a body for holding an electronic component that receives and holds the electronic component inside the housing, wherein the housing includes the second mounting element that receives the receiving object as the first mounting element and is mounted by a linear assembly process.wherein the locking structure comprises an engaging body with which either the first or the second assembly element is equipped and which includes an engaging section and a first and a second guided rail section arranged opposite each other, with the engaging section being inserted between them, and extending in a direction of assembly of the first and second assembly elements and in a direction of removal from a first forming tool; and comprising an engaging body with which the other of the first and second assembly elements is equipped and which includes an engaging section that engages in the engaging section when the assembly of the first and second assembly elements is complete, and a first and a second guide rail section arranged opposite each other, with the engaging section being positioned between them.which extend in the direction of assembly and a direction of removal from a second forming tool, guide the first and second guided rail sections until the engaged section and the engaging section reach an engagement termination position, and insert the first and second guided rail sections between themselves when the engagement termination position is reached, wherein the first guided rail section includes a guided wall surface that is arranged opposite the first guide rail section in a direction of inter-insertion by the first guide rail section, the second guided rail section includes a guided wall surface that is arranged opposite the second guide rail section in a direction of inter-insertion by the second guide rail section, the first guide rail section includes a guide wall surface,the second guide rail section includes a guide wall surface that guides the guided wall surface of the first guided rail section until the engaged section and the engaging section reach the engagement end position, and is arranged opposite the guided wall surface of the first guided rail section when the engagement end position is reached; the second guide rail section includes a guide wall surface that guides the guided wall surface of the second guided rail section until the engaged section and the engaging section reach the engagement end position, and is arranged opposite the guided wall surface of the second guided rail section when the engagement end position is reached.Each guided wall surface is divided into a first and a second guided area in the direction of assembly and includes a first guided part of the first guided area and a second guided part of the second guided area as a side on which guidance through the guide wall surface begins, the first guided part is inclined at an angle of inclination equal to the draft angle of the first mold, the second guided part is inclined at a greater angle than the draft angle of the first mold, and each guide wall surface includes a first guide part inclined at an angle of inclination equal to the angle of inclination of the first guided part and arranged opposite and parallel to the first guided part when the engagement end position is reached, and includes a second guide part inclined at an angle of inclination equal to the angle of inclination of the second guided part.and is arranged opposite, parallel to the second guided part, when the engagement end position is reached.

[0010] The above and other objectives, features, advantages and the technical and industrial significance of this invention will be better understood by reading the following detailed description of currently preferred embodiments of the invention in conjunction with the accompanying drawings. Brief description of the drawings Fig. Figure 1 is a top view of a locking structure according to one embodiment, viewed in a connection direction; Fig. 2 is a perspective view illustrating a body in action; Fig. Figure 3 is a perspective view illustrating an intervening body; Fig. 4 is a cross-sectional view along a line X1-X1 in Fig. 1; Fig. Figure 5 is a cross-sectional view to describe the locking structure in front of a connection; Fig. 6 is a cross-sectional view along a line X2-X2 in Fig. 1; Fig. Figure 7 is a cross-sectional view to describe the locking structure in front of a connection; Fig. 8 is a cross-sectional view along a line YY in Fig. 1; Fig. Figure 9 is a perspective view illustrating an electrical junction box and a wiring harness according to the embodiment; Fig. Figure 10 is a perspective exploded view illustrating the electrical junction box according to the embodiment; Fig. Figure 11 is a perspective exploded view illustrating an exemplary application of the locking structure in the electrical junction box; Fig. Figure 12 is a perspective exploded view of the exemplary application of the locking structure in the electrical junction box, viewed from a different angle; Fig. Figure 13 is an enlarged view of part A in Fig. 11; and Fig. Figure 14 is an enlarged partial cross-sectional view of part B in Fig. 11. Detailed description of preferred embodiments

[0011] A locking structure, an electrical junction box, and a wiring harness according to one embodiment of the present invention are described in detail below with reference to the accompanying drawings. This embodiment does not limit the present invention. embodiment

[0012] In the following, a locking structure, an electrical junction box and a wiring harness according to an embodiment of the present invention are described with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. 14 described.

[0013] Reference numeral 1 in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. 8 denotes the locking structure according to the present embodiment.

[0014] The locking structure 1 is provided between two mounting elements (a first mounting element 110 and a second mounting element 120) which are to be assembled together by a linear assembly process, and holds the first mounting element 110 and the second mounting element 120 in an assembly state ( Fig. 1 and Fig. 8) In this example, the first mounting element 110 is received into the second mounting element 120 by the linear assembly process and mounted onto it. The locking structure 1 includes an engaging body 10, with which the first mounting element 110 or the second mounting element 120 is equipped, and an engaging body 20, with which the other mounting element is equipped ( Fig. 1 and 4 to 8).

[0015] The engaging body 10 and the engaging body 20 are designed such that they approach each other in such a way that they are connected and engage with each other during the linear assembly process of the first assembly element 110 and the second assembly element 120 when the assembly of the first assembly element 110 and the second assembly element 120 is complete. Furthermore, the engaging body 10 and the engaging body 20 are designed such that the engagement between them is maintained and the first assembly element 110 and the second assembly element 120 are held in the assembled state when the assembly of the first assembly element 110 and the second assembly element 120 is complete.

[0016] The engaging body 10 is formed in one piece with the first mounting element 110 or the second mounting element 120 by a (not illustrated) first molding tool using a resin material. The engaging body 20 is formed in one piece with the other of the first mounting element 110 and the second mounting element 120 by a (not illustrated) second molding tool using a resin material.

[0017] The engaging body 10 includes an engaging section 11 and a first and a second guided rail section 12 and 13, which are arranged opposite each other, with the engaging section 11 being inserted between them, and which extend in the direction of the assembly of the first assembly element 110 and the second assembly element 120 and in the direction of removal from the first forming tool ( Fig. 1, 2 and 4 to 7).The engaging body 20 includes an engaging section 21, which engages with the engaging section 11 when the assembly of the first assembly element 110 and the second assembly element 120 is complete, and a first and a second guide rail section 22 and 23, which are arranged opposite each other, with the engaging section 21 inserted between them, and extend in the direction of the assembly of the first assembly element 110 and the second assembly element 120 and the direction of removal from the second mold, guiding the first and the second guided rail section 12 and 13 until the engaging section 11 and the engaging section 21 reach an engagement termination position and inserting the first and the second guided rail section 12 and 13 between them when the engaging section 11 and the engaging section 21 reach the engagement termination position. Fig. 1 and 3 to 7).

[0018] For example, the engaging section 11 or the engaging section 21 can be designed as a click element to form a click shape, and the other section can be designed as a wall part in which the click element engages. The wall part is, for example, a circumferential wall part such as a through hole, a groove, or a recess into which the click element penetrates when the assembly of the first mounting element 110 and the second mounting element 120 is complete. The engaging section 11 and the engaging section 21 can be designed as click shapes that can be brought into engagement with each other when the assembly of the first mounting element 110 and the second mounting element 120 is complete. In this example, the engaging section 11 and the engaging section 21 are designed as click elements ( Fig. 8).

[0019] The first guided rail section 12 includes a guided wall surface 12A, which is arranged opposite the first guide rail section 22 in the direction of an insertion through the first guide rail section 22 ( Fig. 1, 2 and 4 to 7). The second guided rail section 13 includes a guided wall surface 13A, which is arranged opposite the second guide rail section 23 in the direction of an interlocking through the second guide rail section 23 ( Fig. 1, 2 and 4 to 7). The first guide rail section 22 includes a guide wall surface 22A which guides the guided wall surface 12A of the first guided rail section 12 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the guided wall surface 12A of the first guided rail section 12 when the engaged section 11 and the engaging section 21 reach the engagement termination position ( Fig. 1 and 3 to 7). The guided wall surface 12A and the guide wall surface 22A are arranged opposite each other in the direction of interlocking the first and second guided rail sections 12 and 13 by the first guide rail section 22 and the second guide rail section 23. The second guide rail section 23 includes a guide wall surface 23A that guides the guided wall surface 13A of the second guided rail section 13 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the guided wall surface 13A of the second guided rail section 13 when the engaged section 11 and the engaging section 21 reach the engagement termination position ( Fig. 1 and 3 to 7). The guided wall surface 13A and the guide wall surface 23A are arranged opposite each other in the direction of an interlocking of the first and the second guided rail section 12 and 13 by the first guide rail section 22 and the second guide rail section 23.

[0020] The guided wall surfaces 12A and 13A are each subdivided into a first and a second guided area T1 and T2 in the direction of mounting of the first mounting element 110 and the second mounting element 120 ( Fig. 5 and Fig. 7) On the guided wall surface 12A, the second guided area T2 is defined as the side where guiding through the guide wall surface 22A begins (in other words, a side where the insertion of the first guided rail section 12 into the first guide rail section 22 begins), and the first guided area T1 is defined as the opposite side. On the guided wall surface 13A, the second guided area T2 is defined as the side where guiding through the guide wall surface 23A begins (in other words, a side where the insertion of the second guided rail section 13 into the second guide rail section 23 begins), and the first guided area T1 is defined as the opposite side.The guided wall surfaces 12A and 13A are designed such that the sizes of the first guided areas T1 correspond to each other in the mounting direction and the sizes of the second guided areas T2 correspond to each other in the mounting direction.

[0021] The guided wall surfaces 12A and 13A include first guided parts 12A1 and 13A1 of the first guided areas T1 and second guided parts 12A2 and 13A2 of the second guided areas T2, wherein the first guided parts 12A1 and 13A1 are inclined at the angle of inclination of the draft angle of the first mold, and the second guided parts 12A2 and 13A2 are each inclined at a greater angle than the angle of inclination of the draft angle of the first mold ( Fig. 2 and 4 to 7). The draft angle of the first mold is a very small angle, slightly inclined relative to the direction of removal from the first mold, and is a generally known angle usually chosen to allow for ease of removal of a molded body obtained when a resin material is formed by a molding tool such as a mold. The first guided parts 12A1 and 13A1 are inclined at angles of the same magnitude in opposite directions relative to the direction of removal from the first mold. The second guided parts 12A2 and 13A2 are inclined at angles of the same magnitude in opposite directions relative to the direction of removal from the first mold.

[0022] In the engaged body 10, the distance between the first guided part 12A1 and the first guided part 13A1 decreases slightly in the insertion direction in the direction of insertion of the first and second guided rail sections 12 and 13 into the first and second guide rail sections 22 and 23. In the engaged body 10, the distance between the second guided part 12A2 and the second guided part 13A2 decreases in the insertion direction in the direction of insertion of the first and second guided rail sections 12 and 13 into the first and second guide rail sections 22 and 23.In the body 10 engaged, the inclination angles of the second guided parts 12A2 and 13A2 and the sizes of the first and second guided areas T1 and T2 in the assembly direction are determined such that the change in distance between the second guided part 12A2 and the second guided part 13A2 is greater than the change in distance between the first guided part 12A1 and the first guided part 13A1.

[0023] The guide wall surfaces 22A and 23A each include first guide parts 22A1 and 23A1, which are inclined at angles corresponding to the angles of inclination of the first guided parts 12A1 and 13A1, and are arranged parallel to the first guided parts 12A1 and 13A1 when the engaged section 11 and the engaging section 21 reach the engagement termination position, and second guide parts 22A2 and 23A2, which are inclined at angles corresponding to the angles of inclination of the second guided parts 12A2 and 13A2, and are arranged parallel to the second guided parts 12A2 and 13A2 when the engaged section 11 and the engaging section 21 reach the engagement termination position. Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. 7).

[0024] In the locking structure 1, the first guided rail section 12 is inserted into the first guide rail section 22 along with the linear assembly operation of the first assembly element 110 and the second assembly element 120, and the second guided rail section 13 is inserted into the second guide rail section 23, while the engaging body 10 and the engaging body 20 approach each other. As the linear assembly operation of the first assembly element 110 and the second assembly element 120 continues in the locking structure 1, the first guided rail section 12 is then guided through the first guide rail section 22, and the second guided rail section 13 is guided through the second guide rail section 23.In the locking structure 1, an engagement between the engaged section 11 and the engaging section 21 is completed when the assembly of the first assembly element 110 and the second assembly element 120 is completed.

[0025] In the locking structure 1, the distance between the second guided parts 12A2 and 13A2 at the front ends where guidance by the first guide parts 22A1 and 23A1 begins (in other words, at a front end on the side where the insertion of the first guided rail section 12 into the first guide rail section 22 begins, and at a front end on the side where the insertion of the second guided rail section 13 into the second guide rail section 23 begins) is smaller than the distance between the first guide parts 22A1 and 23A1.In this design, at the point when the process of connecting the engaging body 10 and the engaging body 20 begins, large gaps are provided between the guided wall surface 12A and the guide wall surface 22A, and between the guided wall surface 13A and the guide wall surface 23A, in the direction of the insertion of the guided wall surfaces 12A and 13A by the guide wall surfaces 22A and 23A. This facilitates the insertion of the first and second guided rail sections 12 and 13 into the first and second guide rail sections 22 and 23 in the locking structure 1. Accordingly, the locking structure 1 simplifies the connection between the engaging body 10 and the engaging body 20.

[0026] Furthermore, in the locking structure 1, as the insertion progresses and the engaged section 11 and the engaging section 21 reach the engagement termination position, the guided wall surfaces 12A and 13A are inserted between the guide wall surfaces 22A and 23A, the guided wall surface 12A and the guide wall surface 22A are positioned very close to each other, and the guided wall surface 13A and the guide wall surface 23A are positioned very close to each other. In other words, when the engaged section 11 and the engaging section 21 reach the engagement termination position, the gap between the guided wall surface 12A and the guide wall surface 22A and the gap between the guided wall surface 13A and the guide wall surface 23A are reduced to very small gaps.In particular, in the locking structure 1, when the engaged section 11 and the engaging section 21 reach the engagement end position, the first guided part 12A1 and the first guide part 22A1 are arranged parallel to each other, the first guided part 13A1 and the first guide part 23A1 are arranged parallel to each other, the second guided part 12A2 and the second guide part 22A2 are arranged parallel to each other, and the second guided part 13A2 and the second guide part 23A2 are arranged parallel to each other. With this design, the play between the engaged body 10 and the engaging body 20 in the direction of the insertion of the guided wall surfaces 12A and 13A by the guide wall surfaces 22A and 23A in the locking structure 1 can be reduced.If an external input such as a vibration is introduced in the joining direction, the locking structure 1 can consequently reduce a relative positional displacement between the engaging body 10 and the engaging body 20 in the joining direction, thereby keeping the engaging section 11 and the engaging section 21 in the engagement state and keeping the first assembly element 110 and the second assembly element 120 in the assembly state.

[0027] When the engaged section 11 and the engaging section 21 in the locking structure 1 reach the engagement termination position, a positional displacement between the engaged body 10 and the engaging body 20 in the removal direction can be locked by the engaged section 11 and the engaging section 21, and a positional displacement between the engaged body 10 and the engaging body 20 in the assembly direction can be locked between the second guided part 12A2 and the second guide part 22A2 and between the second guided part 13A2 and the second guide part 23A2.Furthermore, in the locking structure 1, a play between the engaging body 10 and the engaging body 20 in the direction of the assembly of the engaging body 10 and the engaging body 20 can be reduced by the pair of the second guided part 12A2 and the second guide part 22A2 and the pair of the second guided part 13A2 and the second guide part 23A2, each pair being arranged closely parallel to each other and opposite each other.If an external input, such as a vibration, is introduced in the assembly direction and the removal direction of the engaging body 10 and the engaging body 20, the locking structure 1 can consequently reduce a relative positional displacement between the engaging body 10 and the engaging body 20 in the assembly direction and the removal direction, thereby keeping the engaging section 11 and the engaging section 21 in the engaged state and keeping the first assembly element 110 and the second assembly element 120 in the assembly state.

[0028] In this way, the locking structure 1 can improve the ease of connection between the engaging body 10 and the engaging body 20 and reduce play between the engaging body 10 and the engaging body 20. Thus, the locking structure 1 can hold the first mounting element 110 and the second mounting element 120 in the assembled state with a convenient and simple connection.

[0029] In the locking structure 1, the occupancy ratios of the second guided parts 12A2 and 13A2 on the respective guided wall surfaces 12A and 13A are desirablely increased such that the effect of improving the ease of connection between the engaging body 10 and the engaging body 20 and the effect of reducing the play between the engaging body 10 and the engaging body 20 are enhanced. For example, the guided wall surfaces 12A and 13A can each be configured such that the dimensions of the first guided area T1 and the second guided area T2 correspond to each other in the direction of the mounting of the first mounting element 110 and the second mounting element 120, and accordingly, the ratio of the respective first guided parts 12A1 and 13A1 essentially corresponds to the ratio of the corresponding second guided parts 12A2 and 13A2.Alternatively, the guided wall surfaces 12A and 13A can each be designed such that the size of the second guided area T2 in the direction of the mounting of the first mounting element 110 and the second mounting element 120 is larger than the size of the first guided area T1 in the mounting direction and accordingly the occupancy ratio of each of the second guided parts 12A2 and 13A2 is larger than the occupancy ratio of the corresponding first guided parts 12A1 and 13A1.

[0030] The locking structure 1 according to the present embodiment is described in detail below with reference to a specific example of the engaging body 10 and the engaging body 20.

[0031] In this example, the first mounting element 110 and the second mounting element 120 are made of an insulating material such as a synthetic resin, and the engaging body 10 and the engaging body 20 are also made of an insulating material such as a synthetic resin. The engaging body 10 is formed integrally with the first mounting element 110, and the engaging body 20 is formed integrally with the second mounting element 120.

[0032] In this example, the first mounting element 110 and the second mounting element 120 are used as components of an electrical junction box 200 ( Fig. 9 and Fig. 10). In this way, the electrical junction box 200 includes the locking structure 1 together with the first mounting element 110 and the second mounting element 120. The electrical junction box 200 also includes a housing 201 which accommodates a receiving object 300 inside ( Fig. 10).

[0033] The recording object 300 is, for example, an electronic component 301, which is connected to an electrical line We ( Fig. 9) is electrically connected inside the housing 201, or to form a body 302 for holding an electronic component, which receives and holds the electronic component 301 inside the housing 201 ( Fig. 10) The electronic component 301 is, for example, a circuit protection component such as a relay or a fuse, a connector, or a terminal block. In the present embodiment, an electronic device such as a printed circuit board and an electronic control unit (referred to as an ECU, electronic control unit) is a form of the electronic component 301. The body 302 for holding an electronic component is referred to as a block or cassette. The housing 201 in this example accommodates a plurality of electronic components 301 and a plurality of bodies 302 for holding an electronic component. Consequently, the housing 201 in this example accommodates internally the electrical conductor We, which is electrically connected to the electronic component 301, with the electrical conductor We extending from the inside to the outside ( Fig. 9) The electrical junction box 200 is included together with the receiving objects 300 (the electronic components 301 and the bodies 302 for holding an electronic component) and the electrical line We in a cable harness WH ( Fig. 9).

[0034] The housing 201 is made of a synthetic resin material. The housing 201 is a housing box formed by assembling a plurality of housing elements (a first housing element 210, a second housing element 220 and a third housing element 230) together ( Fig. 9 and Fig. 10). The first housing element 210 is a tubular element with openings at both ends and a so-called frame ( Fig. 10) In the housing 201, the first housing element 210 accommodates the receiving objects 300 (the electronic components 301 and the bodies 302 for holding an electronic component) inside. The second housing element 220 is a cover element that blocks one of the openings of the first housing element 210 and is a so-called top cover ( Fig. 10) The third housing element 230 is a cover element that blocks the other opening of the first housing element 210, and a so-called lower cover ( Fig. 10).

[0035] In the electrical junction box 200, the first mounting element 110 is the receiving object 300, and the second mounting element 120 is the first housing element 210 into which the receiving object 300 is received. In other words, the housing 201 includes the first housing element 210 as the second mounting element 120, which receives the receiving object 300 as the first mounting element 110 and is mounted by a linear assembly process. In this example, the body 302 is used to hold an electronic component as the first mounting element 110 ( Fig. 10). The body 302 for holding an electronic component is received through the other opening of the first housing element 210 as the second mounting element 120 ( Fig. 11).

[0036] One or more locking structures 1 are provided between the body 302 for holding an electronic component and the first housing element 210. In each locking structure 1 described here as an example, the engaging section 11 and the engaging section 21 are designed as click elements.

[0037] The body 10 in engagement is provided on an outer circumferential surface 302a of the body 302 for holding an electronic component ( Fig. 11) The outer circumferential surface 302a is opposite an inner circumferential surface 211a ( Fig. 12) arranged on an outer circumferential wall 211 of the first housing element 210 when the body 302 is received in the first housing element 210 to hold an electronic component. The first housing element 210 in this example has a double-wall structure, in which an inner circumferential wall 212 is provided on the inner side of the outer circumferential wall 211. In this way, the engaging body 20 is provided on the inner circumferential surface 211a of the outer circumferential wall 211 and is also formed by means of the inner circumferential wall 212 ( Fig. 12).

[0038] The body 10 in this example includes a flexible piece 14 which is arranged at a distance from the outer circumferential surface 302a of the body 302 for holding an electronic component ( Fig. 13) The flexible piece 14 is formed in a cantilevered shape, comprising a fixed end on the side where the guidance by the first guide sections 22A1 and 23A1 begins at the second guided sections 12A2 and 13A2 (in other words, on the side where the insertion of the first guided rail section 12 into the first guide rail section 22 begins, and the side where the insertion of the second guided rail section 13 into the second guide rail section 23 begins), and a free end on the side of the first guided sections 12A1 and 13A1 with respect to the fixed end. On the side of the free end of the flexible piece 14, the engaging section 11 curves from a wall surface on one side opposite the side of the outer circumferential surface 302a into a click shape.

[0039] In the body 10 in this example, which is in engagement, the first guided rail section 12 is formed by a first wall part 15a in a plate form and by a second wall part 15b in a plate form ( Fig. 13) The first wall section 15a projects from the outer circumferential surface 302a of the body 302 for holding an electronic component and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210 and in the direction of removal from the first mold. The second wall section 15b projects from an end section of the first wall section 15a in the projection direction to one side opposite the engaging section 11 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210 and in the direction of removal from the first mold.Since in this example the first wall part 15a is provided perpendicularly from the outer circumferential surface 302a and the second wall part 15b is provided perpendicularly from the end part of the first wall part 15a in the projection direction, the first guided rail section 12 is formed in an L-shape.

[0040] In the first guided rail section 12, the guided wall surface 12A includes a wall surface of the first wall part 15a on the side opposite the engaging section 11. Furthermore, in the first guided rail section 12, the guided wall surface 12A includes an end face of the second wall part 15b in the projection direction. The guided wall surface 12A of the first wall part 15a is located closer to the engaging section 11 than the guided wall surface 12A of the second wall part 15b. Specifically, the first guided rail section 12 includes a first guided wall surface 12Aa as a guided wall surface 12A with which the second wall part 15b is equipped, and a second guided wall surface 12Ab as a guided wall surface 12A with which the first wall part 15a is equipped and which is positioned closer to the engaging section 11 than the first guided wall surface 12Aa. Fig. 13).

[0041] Furthermore, in the body 10 in this example, the second guided rail section 13 is formed by a third wall part 15c in a plate form and by a fourth wall part 15d in a plate form ( Fig. 13) The third wall section 15c projects from the outer circumferential surface 302a and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the first mold. The fourth wall section 15d projects from an end section of the third wall section 15c in the projection direction to one side opposite the engaging section 11 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the first mold. Since, in this example, the third wall section 15c is provided perpendicularly from the outer circumferential surface 302a and the fourth wall section 15d is provided perpendicularly from the end section of the third wall section 15c in the projection direction, the second guided rail section 13 is formed in an L-shape.

[0042] In the second guided rail section 13, the guided wall surface 13A includes a wall surface of the third wall section 15c on the side opposite the engaging section 11. Furthermore, in the second guided rail section 13, the guided wall surface 13A includes an end face of the fourth wall section 15d in the projection direction. The guided wall surface 13A of the third wall section 15c is located closer to the engaging section 11 than the guided wall surface 13A of the fourth wall section 15d. Specifically, the second guided rail section 13 includes a first guided wall surface 13Aa as a guided wall surface 13A, with which the fourth wall section 15d is equipped, and a second guided wall surface 13Ab as a guided wall surface 13A, with which the third wall section 15c is equipped and which is positioned closer to the engaging section 11 than the first guided wall surface 13Aa. Fig. 13).

[0043] The body 10 in this example that is engaged includes a first rib 16a, which arches from the outer circumferential surface 302a to the second wall part 15b, and a second rib 16b, which arches from the outer circumferential surface 302a to the fourth wall part 15d ( Fig. 13) In the engaging body 10, the first guide rail section 22 is inserted between the second wall part 15b and the first rib 16a, which are arranged opposite each other, and the second guide rail section 23 is inserted between the fourth wall part 15d and the second rib 16b, which are arranged opposite each other. Accordingly, the locking structure 1 can reduce play between the engaging body 10 and the engaging body 20 in the direction of the opposing arrangement.

[0044] In the interlocking body 20 in this example, the interlocking section 21 protrudes from the inner circumferential surface 211a of the outer circumferential wall 211 of the first housing element 210 in a click-form.

[0045] In the intervening body 20 in this example, the first guide rail section 22 is formed by a first wall part 25a and a second wall part 25b ( Fig. 14) The first wall section 25a projects from the inner circumferential surface 211a of the outer circumferential wall 211 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the second mold. The second wall section 25b projects from an end section of the first wall section 25a in the projection direction to the engaging section 21 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the second mold. Since, in this example, the first wall section 25a is provided perpendicularly from the inner circumferential surface 211a and the second wall section 25b is provided perpendicularly from the end section of the first wall section 25a in the projection direction, the first guide rail section 22 is formed in an L-shape.

[0046] In the first guide rail section 22, the guide wall surface 22A includes a wall surface of the first wall part 25a on the side of the engaging section 21. The guide wall surface 22A is arranged opposite the guided wall surface 12A of the second wall part 15b of the first guided rail section 12. In the first guide rail section 22, the guide wall surface 22A also includes an end face of the second wall part 25b in the projection direction. The guide wall surface 22A is arranged opposite the guided wall surface 12A of the first wall part 15a of the first guided rail section 12.In particular, the first guide rail section 22 includes a first guide wall surface 22Aa as a guide wall surface 22A, which guides the first guided wall surface 12Aa of the first guided rail section 12 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the first guided wall surface 12Aa of the first guided rail section 12, and a second guide wall surface 22Ab as a guide wall surface 22A, which guides the second guided wall surface 12Ab of the first guided rail section 12 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the second guided wall surface 12Ab of the first guided rail section 12 ( . Fig. 14).

[0047] Furthermore, in the intervening body 20 in this example, the second guide rail section 23 is formed by a third wall part 25c and a fourth wall part 25d ( Fig. 14) The third wall section 25c projects from the inner circumferential surface 211a of the outer circumferential wall 211 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the second mold. The fourth wall section 25d projects from an end section of the third wall section 25c in the projection direction to the engaging section 21 and extends in the direction of assembly of the body 302 for holding an electronic component and the first housing element 210, and in the direction of removal from the second mold. Since, in this example, the third wall section 25c is provided perpendicularly from the inner circumferential surface 211a and the fourth wall section 25d is provided perpendicularly from the end section of the third wall section 25c in the projection direction, the second guide rail section 23 is formed in an L-shape.

[0048] In the second guide rail section 23, the guide wall surface 23A includes a wall surface of the third wall part 25c on the side of the engaging section 21. The guide wall surface 23A is arranged opposite the guided wall surface 13A of the fourth wall part 15d of the second guided rail section 13. In the second guide rail section 23, the guide wall surface 23A also includes an end face of the fourth wall part 25d in the projection direction. The guide wall surface 23A is arranged opposite the guided wall surface 13A of the third wall part 15c of the second guided rail section 13.In particular, the second guide rail section 23 includes a first guide wall surface 23Aa as a guide wall surface 23A, which guides the first guided wall surface 13Aa of the second guided rail section 13 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the first guided wall surface 13Aa of the second guided rail section 13, and a second guide wall surface 23Ab as a guide wall surface 23A, which guides the second guided wall surface 13Ab of the second guided rail section 13 until the engaged section 11 and the engaging section 21 reach the engagement termination position, and is arranged opposite the second guided wall surface 13Ab of the second guided rail section 13 (. Fig. 14).

[0049] As described above, the first housing element 210 in this example has a double-wall structure consisting of the outer perimeter wall 211 and the inner perimeter wall 212. A rectangular recess 212a is provided in the inner perimeter wall 212 of the first housing element 210 ( Fig. 14) and is arranged opposite the inner circumferential surface 211a of the outer circumferential wall 211. On the inner circumferential surface 211a, the engaging section 21 is provided on a part that is arranged opposite the recess 212a. Two plate circumferential parts of the inner circumferential wall 212 on the perimeter of the recess 212a are used as the second wall part 25b and fourth wall part 25d. In the first housing element 210, each circumferential part is connected to the outer circumferential wall 211 by a connecting wall part. In the engaging body 20 in this example, the connecting wall parts are used as the first wall part 25a and third wall part 25c.

[0050] In the locking structure 1, the first guided rail section 12, together with a linear assembly operation of the receiving object 300, is inserted into the first guide rail section 22 as the first assembly element 110, with the first housing element 210 as the second assembly element 120. The second guided rail section 13 is then inserted into the second guide rail section 23, while the engaging body 10 and the engaging body 20 approach each other. In the engaging body 20 in this example, an access 27 for the first and second guided rail sections 12 and 13 is formed by the first guide elements 22A1 and 23A1, which are arranged opposite each other between the first guide rail section 22 and the second guide rail section 23. Fig.14) In this example, an opening is formed on the opposite side of the opening of the first housing element 210 between the pair of first guide parts 22A1 of the first guide rail section 22 and the pair of first guide parts 23A1 of the second guide rail section 23. The opening is used as access 27.

[0051] While the linear assembly process of the receiving object 300 and the first housing element 210 continues in the locking structure 1, the first guided rail section 12 is guided through the first guide rail section 22, and the second guided rail section 13 is guided through the second guide rail section 23. In the locking structure 1, an engagement between the engaged section 11 and the engaging section 21 is completed when the assembly of the receiving object 300 and the first housing element 210 is finished.

[0052] As described above, the locking structure 1 according to the present embodiment includes the first guided parts 12A1 and 13A1, which are inclined at the angle of inclination of the draft angle of the first mold tool, and the first guide parts 22A1 and 23A1, which are inclined at angles of inclination corresponding to the angles of inclination of the first guided parts 12A1 and 13A1, and are arranged opposite to the first guided parts 12A1 and 13A1 parallel to the first guided parts 12A1 and 13A1 when the engaged section 11 and the engaging section 21 reach the engagement termination position.The locking structure 1 according to the present embodiment further comprises the second guided parts 12A2 and 13A2, which are inclined at a larger angle than the draft angle of the first mold tool, and the second guide parts 22A2 and 23A2, which are inclined at angles corresponding to the angles of inclination of the second guided parts 12A2 and 13A2 and are arranged parallel to the second guided parts 12A2 and 13A2 when the engaging section 11 and the engaging section 21 reach the engagement termination position. With this design, the locking structure 1 can improve the ease of connection between the engaging body 10 and the engaging body 20 and reduce any play between the engaging body 10 and the engaging body 20.In this way, the locking structure 1 can hold the first mounting element 110 and the second mounting element 120 in the assembled state with a convenient and simple connection. The locking structure 1 is a component of the electrical junction box 200 or the wiring harness WH. Therefore, according to the present embodiment, the electrical junction box 200 and the wiring harness WH can achieve any effect provided by the locking structure 1.

[0053] A locking structure according to the present embodiment includes a first guided part inclined at an angle of inclination corresponding to the draft angle of a first forming tool, and a first guide part inclined at an angle of inclination corresponding to the angle of inclination of the first guided part and arranged parallel to the first guided part when an engaging section and an engaging section reach an engagement termination position.The locking structure according to the present embodiment further comprises a second guided part inclined at a greater angle than the draft angle of the first mold tool, and a second guide part inclined at an angle corresponding to the angle of inclination of the second guided part and arranged parallel to the second guided part when the engaged and engaging sections reach the engagement termination position. With this design, the locking structure can improve the ease of connection between the engaged and engaging bodies and reduce play between them.Furthermore, an electrical junction box and a wiring harness according to the present embodiment include the locking structure and can thus achieve any effect that is achieved by the locking structure.

[0054] Although the invention has been described with regard to certain embodiments for the purpose of a complete and clear disclosure, the attached claims are not to be limited in this way, but are to be interpreted as embodying all modifications and alternative constructions that a person skilled in the art might conceive which reasonably fall within the basic doctrine set forth herein.

Claims

[1] Locking structure (1) which features: an engaging body (10) with which either a first assembly element (110) or a second assembly element (120) is equipped, which are to be assembled together by a linear assembly operation, and which includes an engaging section (11) and a first and a second guided rail section (12, 13) which are arranged opposite each other, with the engaging section (11) being inserted between them, and which extend in a direction of assembly of the first and the second assembly element (110, 120) and in a direction of removal from a first forming tool; and an engaging body (20) with which the other of the first and second assembly elements (110, 120) is equipped and which includes an engaging section (21) that engages in the engaged section (11) when the assembly of the first and second assembly elements (110, 120) is complete, and a first and a second guide rail section (22, 23) that are arranged opposite each other, with the engaging section (21) positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool, guiding the first and the second guided rail section (12, 13) until the engaged section (11) and the engaging section (21) reach an engagement termination position, and inserting the first and the second guided rail section (12, 13) between them when the engagement termination position is reached, wherein the first guided rail section (12) includes a guided wall surface (12A) which is arranged opposite the first guide rail section (22) in a direction of interlocking by the first guide rail section (22), the second guided rail section (13) includes a guided wall surface (13A) which is arranged opposite the second guide rail section (23) in a direction of interlocking by the second guide rail section (23), the first guide rail section (22) includes a guide wall surface (22A) which guides the guided wall surface (12A) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (12A) of the first guided rail section (12) when the engagement termination position is reached, the second guide rail section (23) includes a guide wall surface (23A) which guides the guided wall surface (13A) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (13A) of the second guided rail section (13) when the engagement termination position is reached, Each guided wall surface (12A, 13A) is divided into a first and a second guided area (T1, T2) in the direction of assembly and includes a first guided part (12A1, 13A1) of the first guided area (T1) and a second guided part (12A2, 13A2) of the second guided area (T2) as a side on which guidance through the guide wall surface (22A, 23A) begins, the first guided part (12A1, 13A1) is inclined at an angle of inclination of the draft angle of the first mold, the second guided part (12A2, 13A2) is inclined at a greater angle than the angle of inclination of the draft angle of the first mold, and Each guide wall surface (22A, 23A) includes a first guide part (22A1, 23A1) which is inclined at an angle of inclination corresponding to the angle of inclination of the first guided part (12A1, 13A1) and is arranged parallel to the first guided part (12A1, 13A1) when the engagement end position is reached, and includes a second guide part (22A2, 23A2) which is inclined at an angle of inclination corresponding to the angle of inclination of the second guided part (12A2, 13A2) and is arranged parallel to the second guided part (12A2, 13A2) when the engagement end position is reached. [2] Locking structure according to claim 1, wherein in the engaging body (20) an access (27) for the first and the second guided rail section (12, 13) is formed by the first guide parts (22A1, 23A1) which are arranged opposite each other between the first and the second guide rail section (22, 23). [3] Locking structure according to claim 1 or 2, wherein the first and the second guided rail section (12, 13) each include a first guided wall surface (12Aa, 13Aa) as a guided wall surface (12A, 13A) and a second guided wall surface (12Ab, 13Ab) as a guided wall surface (12A, 13A), which is positioned closer to the section (11) in engagement than the first guided wall surface (12Aa, 13Aa), the first guide rail section (22) includes a first guide wall surface (22Aa) as a guide wall surface (22A) which guides the first guided wall surface (12Aa) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the first guided wall surface (12Aa) of the first guided rail section (12), and includes a second guide wall surface (22Ab) as a guide wall surface (22A) which guides the second guided wall surface (12Ab) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the second guided wall surface (12Ab) of the first guided rail section (12), and the second guide rail section (23) includes a first guide wall surface (23Aa) as a guide wall surface (23A) which guides the first guided wall surface (13Aa) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the first guided wall surface (13Aa) of the second guided rail section (13), and includes a second guide wall surface (23Ab) as a guide wall surface (23A) which guides the second guided wall surface (13Ab) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the second guided wall surface (13Ab) of the second guided rail section (13). [4] Electrical junction box which includes: a housing 21 that accommodates a recording object (300) inside; and a locking structure (1) which holds a first mounting element (110) and a second mounting element (120), which are to be mounted together by a linear assembly process, in an assembly state, wherein the receiving object (300) is an electronic component (301) that is electrically connected to an electrical conductor (We) inside the housing (201), or a body (302) for holding an electronic component that receives and holds the electronic component (301) inside the housing (201), the housing (201) includes the second mounting element (120), which receives the receiving object (300) as the first mounting element (110) and mounts it by means of a linear assembly process, the locking structure (1) includes an engaging body (10) with which either the first or the second assembly element (110, 120) is equipped and which includes an engaging section (11) and a first and a second guided rail section (12, 13) arranged opposite each other, with the engaging section (11) inserted between them, and extending in a direction of assembly of the first and second assembly elements (110, 120) and in a direction of removal from a first forming tool, and an engaging body (20) with which the other of the first and second assembly elements (110, 120) is equipped and which includes an engaging section (21) that engages the engaged section (11) when the assembly of the first and second assembly elements (110, 120) is complete, and a first and a second guide rail section (22, 23) arranged opposite each other, with the engaging section (21) positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool, guiding the first and second guided rail sections (12, 13) until the engaged section (11) and the engaging section (21) reach an engagement termination position, and inserting the first and second guided rail sections (12, 13) between them when the engagement termination position is reached. the first guided rail section (12) includes a guided wall surface (12A) which is arranged opposite the first guide rail section (22) in a direction of interlocking by the first guide rail section (22), the second guided rail section (13) includes a guided wall surface (13A) which is arranged opposite the second guide rail section (23) in a direction of interlocking by the second guide rail section (23), the first guide rail section (22) includes a guide wall surface (22A) which guides the guided wall surface (12A) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (12A) of the first guided rail section (12) when the engagement termination position is reached, the second guide rail section (23) includes a guide wall surface (22A) which guides the guided wall surface (13A) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (13A) of the second guided rail section (13) when the engagement termination position is reached, Each guided wall surface (12A, 13A) is divided into a first and a second guided area (T1, T2) in the direction of assembly and includes a first guided part (12A1, 13A1) of the first guided area (T1) and a second guided part (12A2, 13A2) of the second guided area (T2) as a side on which guidance through the guide wall surface (22A, 23A) begins, the first guided part (12A1, 13A1) is inclined at an angle of inclination of the draft angle of the first mold, the second guided part (12A2, 13A2) is inclined at a greater angle than the angle of inclination of the draft angle of the first mold, and Each guide wall surface (22A, 23A) includes a first guide part (22A1, 23A1) which is inclined at an angle of inclination corresponding to the angle of inclination of the first guided part (12A1, 13A1) and is arranged parallel to the first guided part (12A1, 13A1) when the engagement end position is reached, and includes a second guide part (22A2, 23A2) which is inclined at an angle of inclination corresponding to the angle of inclination of the second guided part (12A2, 13A2) and is arranged parallel to the second guided part (12A2, 13A2) when the engagement end position is reached. [5] Wiring harness which includes: one recording object (300); an electrical line (We); a housing (201) that accommodates the receiving object (300) and the electrical conductor (We) inside, the electrical conductor (We) extending from the inside to the outside; and a locking structure (1) which holds a first mounting element (110) and a second mounting element (120), which are to be mounted together by a linear assembly process, in an assembly state, wherein the receiving object (300) is an electronic component (301) that is electrically connected to the electrical conductor (We) inside the housing (201), or a body (302) for holding an electronic component that receives and holds the electronic component (301) inside the housing (201), the housing (201) includes the second mounting element (120), which receives the receiving object (300) as the first mounting element (110) and mounts it by means of a linear assembly process, the locking structure (1) includes an engaging body (10) with which either the first or the second assembly element (110, 120) is equipped and which includes an engaging section (11) and a first and a second guided rail section (12, 13) arranged opposite each other, with the engaging section (11) inserted between them, and extending in a direction of assembly of the first and second assembly elements (110, 120) and in a direction of removal from a first forming tool, and an engaging body (20) with which the other of the first and second assembly elements (110, 120) is equipped and which includes an engaging section (21) that engages the engaged section (11) when the assembly of the first and second assembly elements (110, 120) is complete, and a first and a second guide rail section (22, 23) arranged opposite each other, with the engaging section (21) positioned between them, extending in the direction of assembly and a direction of removal from a second forming tool, guiding the first and second guided rail sections (12, 13) until the engaged section (11) and the engaging section (21) reach an engagement termination position, and inserting the first and second guided rail sections (12, 13) between them when the engagement termination position is reached. the first guided rail section (12) includes a guided wall surface (12A) which is arranged opposite the first guide rail section (22) in a direction of interlocking by the first guide rail section (22), the second guided rail section (13) includes a guided wall surface (13A) which is arranged opposite the second guide rail section (23) in a direction of interlocking by the second guide rail section (23), the first guide rail section (22) includes a guide wall surface (22A) which guides the guided wall surface (12A) of the first guided rail section (12) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (12A) of the first guided rail section (12) when the engagement termination position is reached, the second guide rail section (23) includes a guide wall surface (23A) which guides the guided wall surface (13A) of the second guided rail section (13) until the engaged section (11) and the engaging section (21) reach the engagement termination position, and is arranged opposite the guided wall surface (13A) of the second guided rail section (13) when the engagement termination position is reached, Each guided wall surface (12A, 13A) is divided into a first and a second guided area (T1, T2) in the direction of assembly and includes a first guided part (12A1, 13A1) of the first guided area (T1) and a second guided part (12A2, 13A2) of the second guided area (T2) as a side on which guidance through the guide wall surface (22A, 23A) begins, the first guided part (12A1, 13A1) is inclined at an angle of inclination of the draft angle of the first mold, the second guided part (12A2, 13A2) is inclined at a greater angle than the angle of inclination of the draft angle of the first mold, and Each guide wall surface (22A, 23A) includes a first guide part (22A1, 23A1) which is inclined at an angle of inclination corresponding to the angle of inclination of the first guided part (12A1, 13A1) and is arranged parallel to the first guided part (12A1, 13A1) when the engagement end position is reached, and includes a second guide part (22A2, 23A2) which is inclined at an angle of inclination corresponding to the angle of inclination of the second guided part (12A2, 13A2) and is arranged parallel to the second guided part (12A2, 13A2) when the engagement end position is reached.

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