JP2013241988A - Engaging structure and fitting container equipped with the engaging structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engaging structure enabling to accurately and easily identify an engagement state as to whether or not an engaging means firmly engages, and to provide a fitting container equipped with the engaging structure.SOLUTION: In an engaging structure, an engaging means 50 capable of engaging a first member 10 and a second member 20 in a fitting state is formed of a first engaging part 100 and a second engaging part 200 engageable with the first engaging part 100. An engagement state indicating means 60 is provided on the engaging means 50 for indicating an engagement state in which the first engagement part 100 and the second engagement part 200 engage with each other, by whether surfaces become different levels when the engagement state, in which the first engagement part 100 and the second engagement part 200 engage with each other, is in a non-engagement state or the surfaces become level when the engagement state is in an engagement completion state.

Description

  The present invention relates to an engagement structure provided with an engagement means for engaging a first member and a second member that can be fitted together in a fitted state. The present invention relates to a fitting container composed of a main body container and a lid that are fitted by engagement of the engaging means, such as a connection box.

  Conventionally, an automobile is mounted with an electrical junction box on which various electrical components such as relays and fuses are mounted.

  The electrical junction box is formed in a box shape with a bottomed cylindrical lower cover and an upper cover that closes an opening of the lower cover.

  Since electrical components are mounted inside the electrical junction box, it is necessary to reliably prevent foreign matter such as water and dust from entering the electrical junction box through the gap between the lower cover and the upper cover. It is necessary to keep the upper cover and the upper cover securely fitted.

  However, since the electric junction box is mounted on the vehicle and vibrates over a long period of time as the vehicle travels, the lower cover and the upper cover are kept in a fitted state unless engaged by the engaging means. It was difficult.

  For this reason, some electrical connection boxes include engagement means for locking (engaging) the lower cover and the upper cover in a fitted state. Is one of them.

  However, the engagement means provided in the “electrical connection box” in the following Patent Document 1 includes one claw-shaped engagement portion formed on the lower cover side and the other hook-shaped engagement portion formed on the upper cover side. The lower cover and the upper cover can be locked and coupled in a fitted state by engaging the one engaging portion and the other engaging portion.

  The “electric connection box” in the following Patent Document 1 is a halfway engagement in which one hook-like engagement portion and the other hook-like engagement portion are securely locked or not securely locked together. There is a problem that it is difficult to accurately confirm whether or not the state is a combined state.

  Specifically, since the upper cover is in a state of covering the lower cover regardless of whether or not the engaging means is engaged, the engaging means is not affected even when the entire electrical junction box is viewed from the outside. It is not possible to confirm whether or not it is engaged, and the engaging means will be engaged unless the engaging means is visually confirmed from a close distance or the electric connection box is not directly touched by hand. I couldn't confirm whether or not.

  For this reason, there has been a situation in which it is overlooked that the engagement means is not engaged, and it is mistakenly determined that the engagement means is engaged, regardless of whether the engagement means is not firmly connected. As a result, there has been a problem that the upper cover allows entry of foreign matters such as water from the gap with the lower cover.

  Furthermore, in order to avoid such a situation, it is necessary to confirm the engagement state of the engagement means by directly touching the electrical connection box with a hand, and there is a problem that much labor is required for the confirmation. It was happening.

JP 2002-95136 A

  Accordingly, the present invention provides an engagement structure that can accurately and easily specify an engagement state as to whether or not the engagement means is firmly engaged, and a fitting provided with the engagement structure. The purpose is to provide containers.

  According to the present invention, an engagement means capable of engaging the first member and the second member in a fitted state is provided on the first engagement portion formed on the first member and on the second member. An engagement structure configured to be engageable with a joint portion, wherein at least one of the first engagement portion and the second engagement portion is set to the other An engagement state display means configured to be elastically deformable with respect to the engagement portion, and to display an engagement state indicating whether or not the first engagement portion and the second engagement portion are engaged. In the engagement means, the engagement state display means includes an engagement / disengagement direction orthogonal surface portion orthogonal to an engagement / disengagement direction in which the first member and the second member are fitted or detached, and the one The engaging portion is composed of at least one orthogonal surface portion of the elastic deformation direction orthogonal surface portion orthogonal to the elastic deformation direction in which the engagement portion is elastically deformed, and the fitting / removing direction orthogonal surface portion is A first fitting / removing direction orthogonal surface portion formed on the first engagement portion side and a second fitting / removing direction orthogonal surface portion formed on the second engagement portion side, and the first fitting / detaching direction orthogonal surface portion And the second fitting / removing direction orthogonal surface portion are configured by an orthogonal surface portion that is in any one of a stepped state in which the stepped arrangement is different from each other and a non-stepped state in which the second fitting direction is not stepped. The deformation direction orthogonal surface portion includes a first elastic deformation direction orthogonal surface portion formed on the first engagement portion side and a second elastic deformation direction orthogonal surface portion formed on the second engagement portion side. The orthogonal surface portion that is in one of a stepped state in which the first elastic deformation direction orthogonal surface portion and the second elastic deformation direction orthogonal surface portion are arranged in a stepwise difference or a non-stepped state in which the arrangement is not stepped away from each other. And the engagement The state display means is in an unengaged state from when the first engagement portion starts elastic deformation until the engagement with the second engagement portion is completed, Among the elastic deformation direction orthogonal surface portions, at least one orthogonal surface portion is in the stepped state, and the first engagement portion is in an engaged state in which the engagement with the second engagement portion is completed, The one orthogonal surface portion is configured to be in the non-stepped state.

  According to the configuration described above, when at least one orthogonal surface portion of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion is in the stepped state, the first engagement portion and the second engagement portion. It can be specified that the joint portion is in the unengaged state.

On the other hand, when the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion are in the non-stepped state, the first engagement portion and the second engagement portion are identified as being in the engagement completion state. can do.
For this reason, it can be confirmed accurately and easily whether the engagement between the first engagement portion and the second engagement portion is the unengaged state or the engagement completed state.

  For example, a letter or a pattern is attached to a part of the engaging means or a peripheral portion of the engaging means so that the engaging means can be easily identified with respect to a portion other than the engaging means. Alternatively, the position of the engaging means may be confirmed at a glance by attaching a color.

  As an aspect of the present invention, the elastic deformation direction orthogonal surface portion is disposed along the side surface of the container body, and the engagement state display means includes the fitting / removing direction orthogonal surface and the elastic deformation direction orthogonal surface. The first engagement portion and the second engagement portion are in the non-engaged state, and at least the one orthogonal surface portion is in the stepped state, and the first engagement portion and the second engagement portion Can be configured so that the orthogonal surface portions of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion are in the non-stepped state.

  According to the above-described configuration, the first engagement portion and the second engagement portion are not provided until the orthogonal surface portions of the fitting / removal direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion are in the non-stepped state. For example, when at least one orthogonal surface portion of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion is in the non-stepped state, the first engagement It can be recognized that the engagement completion state is more confirmed as compared with the case of recognizing that the engagement portion and the second engagement portion are in the engagement completion state.

  Further, the first engagement portion and the second engagement portion are in the engaged state unless both the orthogonal surface portions of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion are in the non-stepped state. Therefore, when at least one orthogonal surface portion of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion is in the non-stepped state, the engagement is not completed. When only one of the orthogonal surface portions is confirmed, if the one orthogonal surface portion is in a stepped state, it can be immediately recognized that it is in an unengaged state.

  In particular, as described above, since the elastic deformation direction orthogonal surface portion is disposed along the side surface of the container body, the elastic deformation direction orthogonal surface portion is in the uneven state in a state in which the first member is viewed in plan view. It can be confirmed at a glance whether it is present or not.

  As an aspect of the present invention, any one of the first fitting / removing direction orthogonal surface portion and the second fitting / removing direction orthogonal surface portion, and the first elastic deformation direction orthogonal surface portion and the second elastic deformation direction orthogonal surface portion. Can be arranged such that the first engaging portion and the second engaging portion are adjacent to each other in the engaged state.

According to the configuration described above, in the engagement completion state, at least one orthogonal surface portion of the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion is disposed so as to be adjacent to each other as described above. Thus, since it is conspicuous that the one orthogonal surface portion is stepped, it is possible to accurately recognize whether the one orthogonal surface portion is in the stepped state or the stepped state.
For example, even if the step on one orthogonal surface portion is low, it can be accurately recognized that the one orthogonal surface portion is in the stepped state.

  Therefore, it is possible to accurately and easily confirm whether the engagement between the first engagement portion and the second engagement portion is the unengaged state or the engagement completed state.

  Further, as an aspect of the present invention, the first engagement portion is configured to be elastically deformable with respect to the second engagement portion, and a facing portion of the first engagement portion that faces the second engagement portion. In the present invention, a projecting portion that is projecting compared to other portions is formed in the first engaging portion, and a projecting surface portion that is formed in a planar shape on the distal end side of the projecting portion. Forming the concave wall surface portion having a concave portion into which the convex surface portion can be fitted from the opening direction of the concave shape as the first member and the second member are fitted. It is formed in a joint portion, and the projecting surface portion can be configured as the first elastic deformation direction orthogonal surface portion, and the concave wall surface portion can be configured as the second elastic deformation direction orthogonal surface portion.

  As described above, the projecting surface portion is configured as the first elastic deformation direction orthogonal surface portion, and the concave wall surface portion is configured as the second elastic deformation direction orthogonal surface portion, whereby the first engagement portion and When the engagement with the second engagement portion is in the engagement completion state, the protrusion is fitted into the recess of the concave wall surface.

  That is, the entire concave edge portion of the concave portion is configured by checking whether or not there is a step between the concave wall surface portion and the protruding surface portion in a state where the protruding portion is fitted in the concave portion of the concave wall surface portion. Can confirm the presence or absence of a step.

  Therefore, since it is possible to more accurately and easily confirm whether the elastic deformation direction orthogonal surface portion is in the stepped state or the stepped state, the first engaging portion and the second engaging portion It is possible to accurately and easily confirm whether the engagement is with the non-engaged state or the engaged state.

  Here, the concave portion is not limited to a concave shape having a rectangular shape in frontal view, and is particularly limited to the concave shape, such as an inverted triangle, an arc shape, or the like that is formed so that the width gradually decreases along the depth direction. do not do.

  As an aspect of the present invention, the first engaging portion is formed of an elastic protruding piece having elasticity protruding from the side surface of the first member, and is opposed to the second engaging portion at the tip of the elastic protruding piece. The protruding surface can be formed on the facing portion.

  With the above-described configuration, the elastic protruding piece in the first engaging portion can be released by elastically deforming, and as described above, the elastic protruding piece can be released. By forming the projecting surface at the front end portion, the projecting surface can be pressed, whereby the elastic projecting piece can be easily elastically deformed. Thereby, engagement with the said 2nd engaging part can be cancelled | released easily.

  In addition, as described above, the projecting surface can be engaged with the projecting surface portion fitted into the concave portion of the concave wall surface portion in the engagement completed state. A function for engaging with the concave portion of the concave wall surface portion and a function as a pressing portion (switch) for pressing the elastic protruding piece in order to elastically deform the elastic protruding piece can be provided.

  Further, as an aspect of the present invention, in the end surface portion corresponding to the thickness portion on the side having the concave portion in the concave wall surface portion, both end surface portions with respect to the width direction of the concave portion are set as second end surface portions. The end face located on the side opposite to the fitting direction of the projecting surface portion with respect to the concave portion on the end surface on the outer peripheral side in the projecting direction of the projecting portion is set as a first end surface portion, and the first end surface portion is While configuring with a first fitting / removing direction orthogonal surface portion, the second end surface portion can be configured with the second fitting / detaching direction orthogonal surface portion.

  According to the above-described configuration, the first engagement portion and the second engagement portion depend on whether the first end surface portion and the second end surface portion are in the stepped state or the stepped state. Can be identified as being unengaged or engaged.

  Further, in this manner, in the fitting / removing direction orthogonal plane orthogonal to the fitting / removing direction, the first engaging portion and the second engaging portion are determined depending on whether or not the first end surface portion and the second end surface portion are different. In addition to being able to confirm the engagement state with the joint portion, in the elastic deformation direction orthogonal plane orthogonal to the elastic deformation direction, depending on whether there is a difference between the protruding surface portion and the concave wall surface portion, An engagement state between the first engagement portion and the second engagement portion can be confirmed.

  Therefore, the engagement state of the first engaging portion and the second engaging portion can be accurately and easily confirmed from either side of the fitting / removing direction orthogonal plane and the elastic deformation direction orthogonal plane. .

  As an aspect of the present invention, the second engaging portion is configured such that the concave wall surface portion is disposed at a predetermined interval with respect to the side wall surface of the second member, and the concave wall surface portion and the second member are arranged. At least a part of the first engaging portion can be disposed between the side wall surface of the first engaging portion and the side wall surface of the first engaging portion.

  With the configuration described above, the first engaging portion can be concealed by the concave wall surface portion. That is, by concealing the first engaging portion that is formed in a protruding shape so as to engage with the second engaging portion, the engaging structure can be configured with an excellent appearance.

Further, the first engagement portion receives external force and is unexpectedly elastically deformed so that the engagement between the first engagement portion and the second engagement portion is not unexpectedly released. The first engagement portion can be protected against external force by the concave wall surface portion.
Therefore, the first engagement portion and the second engagement portion can be reliably kept in the engagement completed state.

  As an aspect of the present invention, an engagement / disengagement guide means for guiding the first member and the second member in the engagement / disengagement direction is provided on at least one of the first engagement portion and the second engagement portion. Can be provided.

  According to the configuration described above, it is possible to smoothly fit the first member and the second member while the first member and the second member are fitted to each other without being displaced from each other. That is, the first engaging portion and the second engaging portion can be smoothly engaged.

  In addition, the guide means is provided in at least one of the first engagement portion and the second engagement portion, so that the engagement / disengagement guide means allows the first engagement portion and the second engagement portion to be connected. An effect of protecting the engagement from being accidentally released can also be obtained.

  The guide means is not limited to at least one of the first engaging portion and the second engaging portion, but may be provided at a place other than the engaging means. By providing at least one of the engaging portion and the second engaging portion, the above-described effects can be obtained.

  Further, the stepped state is a state in which at least one of the orthogonal surface portions is not flush with each other, and the non-stepped state includes a state in which the one orthogonal surface portion is flush.

  With the configuration described above, it is possible to recognize whether at least one of the orthogonal surface portions is in the stepped state or the non-stepped state according to the presence or absence of a step with respect to the one orthogonal surface portion that is flat. It is possible to accurately and easily recognize whether the engagement state or the engagement completion state.

Here, the identification of whether the fitting / removal direction orthogonal surface portion is in a non-stepped state or a stepped state is not limited to the above-described specification based on whether or not the surface is flush.
For example, the first fitting / removing direction orthogonal surface portion and the second fitting / removing direction orthogonal surface portion are each formed in a mountain shape or a valley shape, and the peaks of the mountain shape or the valley shape are located at the opposite ends of each other. In the opposite end, it is specified whether the height of the peak of each mountain or valley is different, or whether the height is the same or not It may be configured to.

  Further, as an aspect of the present invention, in the above-described engagement structure, one of the first member and the second member is configured with a lid, and the other member is configured with a container body, and the first Of the engaging portion and the second engaging portion, the engaging portion formed on the one member is constituted by a lid side engaging portion, and the engaging portion formed on the other member is the container body. The main body container, and the lid that is fitted to the main body container so as to close the opening of the main body container, and the lid side engaging section and the It can comprise as a fitting container engaged with the container main body side engaging part.

  With the above-described configuration, the lid-side engaging portion and the container main body-side engaging portion can be reliably brought into an engaged state, so that the lid is firmly fitted to the main body container. be able to.

  For this reason, for example, it is not noticed that the fitting state is incomplete, and it is possible to reliably prevent foreign matters such as water and dust from intruding unexpectedly.

  Therefore, for example, the fitting container can be applied to an electrical junction box or the like that needs to reliably prevent intrusion of water or the like.

  Further, when the engagement state between the first engagement portion and the second engagement portion is confirmed, the engagement is surely completed without the need for confirmation by touching with one hand at a time. Can be confirmed.

  According to the present invention, the engagement structure that can accurately and easily specify the engagement state of whether or not the engagement means is firmly engaged, and the fitting provided with the engagement structure A combined container can be provided.

The exploded perspective view of an electric junction box. External view of an electrical junction box. The top view of an electric junction box. Structure explanatory drawing of a lock engagement body. Structure explanatory drawing of an upper side engaging body. Structure explanatory drawing of a lower side engaging body. Explanatory drawing explaining the procedure of engagement with an upper side engaging body and a lower side engaging body. Explanatory drawing which showed a mode that an upper cover and a lower cover were fitted. Explanatory drawing which shows the state of the lock engagement body in the non-engaged state or the engagement completion state.

An embodiment of the present invention will be described below with reference to the drawings.
The electrical connection box 1 in the present embodiment is a box that is mounted on a vehicle and supplies power to a terminal device such as an audio or an air conditioner from an in-vehicle battery power source so that the terminal device can be cut off. 6, the electrical connection unit 2 and an electrical connection box main body 1 </ b> A that accommodates the electrical connection unit 2 are formed using a synthetic resin material.

  FIG. 1 shows an exploded perspective view of each of the electrical components 3 mounted on the electrical junction box 1 and the components constituting the electrical junction box 1. FIG. 2 is a perspective view of the electrical junction box main body 1A as viewed obliquely from above. FIG. 3 is a plan view of the electrical junction box main body 1A, FIG. 4 is a configuration explanatory view of the lock engaging body 50, and FIG. 4A is a state in which the lock engaging body 50 is not engaged. 4 (b) shows a state in which the lock engagement body 50 is engaged.

  FIG. 5A is a configuration explanatory view of the upper engagement body 100 as viewed from the front, FIG. 5B is an end view taken along line AA in FIG. 5A, and FIG. FIG. 5D is an end view taken along the line BB in FIG. 5A, and FIG. 5D is an end view taken along the line CC in FIG. 6A is an explanatory diagram of the configuration of the lower engagement body 200 when viewed from the front, FIG. 6B is a sectional view taken along the line DD in FIG. 6A, and FIG. The EE sectional view taken on the line in 5 (6) is shown.

  In the following description, the short side direction of the electrical junction box 1 is set to the X direction, the longitudinal direction is set to the Y direction, and the vertical direction (height direction) is set to the Z direction.

  The electrical connection unit 2 includes a component mounting block 6 to which the electrical component 3 is connected, and an insertion allowable frame 5 in which an insertion allowable portion 5a that allows the component mounting block 6 to be inserted is disposed.

The electrical junction box main body 1A is formed in a substantially rectangular parallelepiped box shape with a bottomed cylindrical lower cover 20 having an opening on the upper side and an upper cover 10 that closes the opening of the lower cover 20, and the lower cover 20 A lock engaging body 50 that detachably locks the upper cover 10 is provided.
As a guide means for guiding the lower cover 20 and the upper cover 10 so as not to be displaced from each other in the X direction and the Y direction, one of the side surfaces on both sides in the Y direction of the upper cover 10 is provided. A guide protrusion 135 protruding downward, and a guide rail 235 formed on the lower cover 20 so as to be engageable with the guide protrusion 135 (see FIG. 7).

  As shown in FIG. 3, the lock engagement body 50 is provided at three locations on the opposing peripheral edge between the lower cover 20 and the upper cover 10, and the first lock engagement body 50 </ b> A, the second lock engagement body 50 </ b> B, and the third lock engagement body, respectively. It is composed of a combined 50C.

  Specifically, the first lock engagement body 50A and the second lock engagement body 50B are disposed on one side in the X direction of the electrical junction box main body 1A on both side portions with the middle in the Y direction, and the third lock engagement body 50A. The combined 50C is disposed on the other side in the X direction of the electrical junction box main body 1A and in the middle portion in the Y direction of the electrical junction box main body 1A.

  Hereinafter, the configuration of the lock engagement body 50 will be described. However, since the first lock engagement body 50A, the second lock engagement body 50B, and the third lock engagement body 50C have the same configuration, the first lock engagement body 50A is the same. Take up and explain.

  The lock engagement body 50 includes an upper side lock engagement body 100 formed at the lower portion of the upper cover 10 and a lower side lock engagement body 200 formed at the upper portion of the lower cover 20 so as to be engageable with the upper side lock engagement body 100. ing.

  The upper side lock engagement body 100 includes an elastic protruding piece 101 and a fitting / removing guide protruding piece 130.

  As shown in FIGS. 5B and 5C, the elastic protruding piece 101 is formed in a long plate shape, and is outside from the lower end portion of the upper cover 10 with respect to the side wall surface (outer peripheral wall surface) of the upper cover 10. For example, it is a protruding piece that protrudes obliquely upward with an inclined gradient of about 3 to 10 degrees and is elastically deformable (flexible deformation) in the plate-like thickness direction.

  An elastic protrusion is provided between the tip of the elastic protrusion 101 and the side wall surface of the upper cover 10 so that the engagement between the upper side lock engagement body 100 and the lower side lock engagement body 200 can be released by a procedure described later. An elastic allowable space S that allows elastic deformation of the piece 101 is provided.

  An elastic deformation restricting projection 140 for restricting the elastic protruding piece 101 from being excessively elastically deformed is provided on the side wall surface of the upper cover 10 at a portion of the side wall surface of the upper cover 10 facing the tip of the elastic protruding piece 101. Forming.

  Here, the direction in which the elastic protruding piece 101 is elastically deformed substantially coincides with the X direction, but the direction in which the elastic protruding piece 101 is elastically deformed is set as the elastic deformation direction.

  The protruding portion 102 and the engaging hole 120 are formed in the protruding portion of the elastic protruding piece 101 in the order from the tip to the base side. Furthermore, the contact surface 103 is formed in the part from the base part side of the protrusion direction of the protrusion direction of the elastic protrusion piece 101 to the front-end | tip part.

  Compared with other portions in the protruding direction of the elastic protruding piece 101, the overhanging portion 102 faces the lower side engaging body 200 toward the lower side engaging body 200, that is, the side wall surface of the upper cover 10. It protrudes toward the opposite side. The overhanging portion 102 is formed so as to protrude in a square shape in front view, and the overhanging surface 110 provided at the tip of the overhanging portion 102 is formed as a flat surface formed in a square shape in front view.

  Further, the upper end surface 111 of the overhanging portion 102 is flat in a fitting / removing direction orthogonal plane Hz orthogonal to the cover fitting / removing direction (Z direction) and forms an upper end surface along the Y direction in the cover fitting state. ing.

  The cover fitting state indicates a state in which the upper cover 10 and the lower cover 20 are fitted, and the cover fitting / removing direction is a direction in which the upper cover 10 and the lower cover 20 are fitted to each other, or separated from each other. Indicates the direction to do.

  As shown in FIGS. 5A and 5C, the engagement hole 120 is a hole that allows engagement with the lower engagement body 200 in the cover fitting state, and the elastic protruding piece 101 is arranged in the thickness direction. It is a penetrating through hole.

  The contact surface 103 protrudes toward the lower engagement body 200 by protruding the elastic protruding piece 101 obliquely upward with a slope inclined outward with respect to the side wall surface of the upper cover 10 as described above. When the upper cover 10 and the lower cover 20 are fitted to each other, they are formed on the surface facing the lower side engagement body 200 so as to be able to contact an engagement protrusion 220 (described later) of the lower side engagement body 200. Yes.

  Further, as shown in FIGS. 5 (a) and 5 (d), the fitting / removing guide protruding piece 130 is formed on the lower side engaging body 200 at both outer portions in the Y direction with respect to the elastic protruding piece 101 in the upper cover 10. While projecting toward the surface, it is formed along the elastic projecting piece 101.

Next, the lower side engagement body 200 will be described with reference to FIG.
The lower side engagement body 200 is formed so as to protrude upward from the upper portion of the lower cover 20, and in order from the base portion in the protruding direction to the front end, the lower side engagement body base portion 201, the lower side engagement body main body portion 202, and the lower side engagement body front end. The unit 203 is configured.

  The lower engagement body base 201 is configured to be able to interpose (accommodate) the elastic protruding piece 101 between the lower engagement body 200 and the side wall surface of the lower cover 20 with respect to the side wall surface of the lower cover 20 in the cover fitting state. It is formed in a protruding shape inclined obliquely upward to the outside.

  The lower-side engagement body main body 202 and the lower-side engagement body distal end portion 203 project straight upward, and the lower-side engagement body distal end portion 203 projects so as to be positioned above the upper end of the lower cover 20.

  In other words, the lower engagement body 200 includes the concave wall surface portion 210 having the concave portion 230a, the engagement protrusion 220, and the fitting / removing guide wall surface portion 230.

  The concave wall surface portion 210 forms a flat outer surface that does not face the side wall surface of the lower cover 20 in the lower side engaging body main body portion 202 and the lower side engaging body front end portion 203.

  The concave wall surface portion 210 is an elastic deformation direction orthogonal plane orthogonal to the elastic deformation direction in which the elastic protruding piece 101 is elastically deformed, that is, an elastic deformation direction orthogonal plane Hx (X direction orthogonal plane) orthogonal to the X direction. ) In parallel with

  As shown in FIG. 6A, the concave portion 230 a formed in the concave wall surface portion 210 is formed in a portion corresponding to the lower engagement body tip portion 203 in the fitting / removing guide wall surface 230, and the fitting / removing guide wall surface 230. An intermediate portion in the width direction (Y direction) is formed in a concave shape from the upper end to the lower side.

  As shown in FIGS. 6B and 6C, the engagement protrusion 220 is in the cover fitting state at the upper part of the portion corresponding to the lower-side engagement body main body 202, that is, the lower end of the recess 230a. An engaging protrusion 220 protruding to be engageable with an engaging hole 120 formed in the elastic protruding piece 101 is formed.

  The upper surface of the engagement protrusion 220 is formed as an inclined surface that is inclined toward the lower surface as it advances toward the tip, and the lower surface of the engagement protrusion 220 is orthogonal to the lower engagement body main body 202. It protrudes on the surface.

  Further, in the end surface portion corresponding to the thickness portion on the side having the concave portion 230a in the concave wall surface portion 210, the end surface portions on both outer sides with respect to the width direction (Y direction) of the concave portion 230a, that is, in the Y direction in the concave wall surface portion 210. The upper end surface 211 formed along the cover is formed flat in a fitting / removing direction orthogonal plane Hz orthogonal to the cover fitting / removing direction (Z direction).

  As shown in FIGS. 6A, 6 </ b> B, and 6 </ b> C, the fitting / removing guide wall surface 230 described above engages with the fitting / removing guide protrusion 130 in the X direction and the Y direction, thereby lower cover 20. And the upper cover 10 so that they can be guided in the fitting / removing direction, portions corresponding to both edge portions of the concave wall surface portion 210 in the width direction (Y direction) and the side wall portions of the upper side engaging body 100, that is, a cover fitting state Are formed at opposing portions facing the fitting / removing guide protrusions 130 in the X direction and the Y direction.

In other words, the configuration of the lock engagement body 50 described above includes the engagement means 30 that engages the lower cover 20 and the upper cover 10 in a fitted state, and whether the engagement means 30 is engaged. The engagement state display means 60 for displaying the engagement state, and the fitting / removing guide means 70 for guiding the lower cover 20 and the upper cover 10 in the fitting / detaching direction (Z direction) to fit or separate. .
The engagement means 30 includes the engagement hole 120 and the engagement protrusion 220 described above. The engagement state display means 60 includes the above-described overhanging surface 110 and the concave wall surface portion 210, and includes the upper end surface 111 of the overhanging portion 102 and the upper end surface 211 of the concave wall surface portion 210. The fitting / removing guide means is constituted by the fitting / removing guide protrusion 130 and the fitting / removing guide wall surface 230 described above.

  Here, the engagement state display means 60 engages between the engagement hole 120 of the upper side engagement body 100 and the engagement protrusion 220 of the lower side engagement body 200 after the elastic protruding piece 101 starts elastic deformation. In the non-engaged state until completion of the fitting, the fitting / removing guide wall surface 230 and the overhanging surface 110 are not flush with each other in the elastic deformation direction orthogonal plane Hx, and are stepped, and the fitting / removing direction orthogonal plane Hz (Z direction orthogonal) The upper end surface 211 of the concave wall surface portion 210 and the upper end surface 111 of the overhang portion 102 are configured to be in a stepped state in the plane).

  Further, the engagement state display means 60 is in the cover fitting state, that is, in the engagement completion state in which the engagement hole 120 of the upper side engagement body 100 and the engagement protrusion 220 of the lower side engagement body 200 are engaged. 4 (b), the fitting / removing guide wall surface 230 and the overhanging surface 110 are flush with each other in the elastic deformation direction orthogonal plane Hx (X direction orthogonal plane), and the fitting / removing direction orthogonal plane Hz (Z direction). In the orthogonal plane, the upper end surface 211 of the concave wall surface portion 210 and the upper end surface 111 of the overhang portion 102 are configured to be flush with each other.

Subsequently, in the electrical junction box 1 having the above-described configuration, the procedure of fitting the lower cover 20 and the upper cover 10 by gradually lowering the upper cover 10 with respect to the lower cover 20 will be described with reference to FIGS. I will explain.
First, as shown in FIG. 7A, when the upper cover 10 is gradually lowered with respect to the lower cover 20, as shown in FIG. The wall surface portion 230 is engaged in the X direction and the Y direction, and the upper side engaging body 100 and the lower side engaging body 200 are not displaced from each other in the X direction and the Y direction, and the upper cover 10 is fitted in the fitting direction. Can be lowered.

  At the same time, as shown in FIG. 8, the guide protrusion 135 that hangs down from the upper cover 10 side engages with the guide rail 235 formed on the lower cover 20 side, so that the lower cover 20 and the upper cover 10 particularly in the X direction. The upper cover 10 can be lowered in the fitting direction without being displaced.

  Then, as shown in FIG. 7C, when the engaging protrusion 220 comes into contact with the contact surface 103 of the elastic protruding piece 101, the elastic protruding piece 101 is pressed (biased) by the engaging protrusion 220, Elastically deforms into the elastic allowable space S. Further, when the upper cover 10 is lowered, the elastic protruding piece 101 is aligned with the engaging protrusion 220 and the engaging hole 120 in the Z direction, as shown in FIG. Since the elastic deformation is restored by releasing the pressing by 220, the engaging hole 120 is engaged.

  Further, in order to release the engagement from the state in which the engagement protrusion 220 and the engagement hole 120 are engaged, in the state shown in FIG. By pressing, as shown in FIG. 7C, the elastic protruding piece 101 is elastically deformed into the bending allowable space, and in this state, the upper cover 10 is lifted with respect to the lower cover 20, and the like. The engagement between the mating protrusion 220 and the engagement hole 120 can be released and can be separated from each other.

Actions and effects exhibited by the electrical junction box 1 having the above-described configuration will be described with reference to FIGS. 7 and 9.
7 (b) and 7 (c) show that the engagement protrusion 220 and the engagement hole 120 are engaged from the state shown in FIG. 7 (b) immediately after the elastic protruding piece 101 starts elastic deformation. The state up to the state shown in FIG. 7C immediately before the completion is set as the non-engaged state, and the state shown in FIG. 7D in which the engagement between the engagement protrusion 220 and the engagement hole 120 is completed. Is set as an engagement completion state (cover fitting state).

Further, in the non-engaged state as shown in FIG. 7C, for example, when the lock engagement body 50 is viewed from the direction Dx in FIG. The end surface 111 and the upper end surface 211 of the concave wall surface portion 210 are in a stepped state in which they are displaced by δz. At the same time, the stepped state is shifted so that a gap is generated by δz between the bottom end portion of the concave portion 230a of the concave wall surface portion 210 and the lower end portion of the overhang portion 102.
At the same time, as shown in FIG. 9 (a1), the stepped state is shifted so that a gap is generated by δz between the lower end portion of the concave portion 230a of the concave wall surface portion 210 and the lower end portion of the overhang portion 102.

  On the other hand, in the engagement completion state as shown in FIG. 7D, for example, when the lock engagement body 50 is viewed from the Dx direction in FIG. 2, as shown in FIG. The upper end surface 111 of 102 and the upper end surface 211 of the concave wall surface portion 210 are flush with each other.

  In the non-engaged state as shown in FIG. 7C, for example, when the lock engaging body 50 is viewed from the Dy direction in FIG. 2, as shown in FIG. And the upper end surface 211 of the concave wall surface portion 210 are shifted by δz, and the protruding surface 110 and the concave wall surface portion 210 are shifted by δx.

  On the other hand, in the engagement completed state as shown in FIG. 7D, for example, when the lock engagement body 50 is viewed from the Dy direction in FIG. 2, as shown in FIG. The upper end surface 111 of 102 and the upper end surface 211 of the concave wall surface portion 210 are flush with each other, and the overhanging surface 110 and the concave wall surface portion 210 are flush with each other.

  Furthermore, in the non-engaged state as shown in FIG. 7C, for example, when the lock engagement body 50 is viewed from the Dz direction in FIG. 2, as shown in FIG. The concave wall surface portion 210 is in a different state in which it is displaced by δx.

  On the other hand, in the engagement completion state as shown in FIG. 7D, for example, when the lock engagement body 50 is viewed from the Dz direction in FIG. 2, as shown in FIG. 110 and the concave wall surface portion 210 are flush with each other.

  As described above, even when the lock engagement body 50 is viewed from any of the X direction, the Y direction, and the Z direction, it is accurately determined whether the engagement state display means 60 is in a different state or in a flush state. And it can confirm easily.

If the upper side engaging body 100 and the lower side engaging body 200 are not engaged, it can be specified that the upper side engaging body 100 and the lower side engaging body 200 are not engaged. Since it can be specified that the side engagement body 200 is in the engagement complete state,
Therefore, the upper-side engagement body 100 and the lower-side engagement body 200 are in an engaged state or not engaged only by looking at the lock engagement body 50 from any one of the X direction, the Y direction, and the Z direction. Whether the state is correct can be confirmed accurately and easily.

The electrical junction box 1 having the above-described configuration can also exhibit the following operations and effects.
As described above, the upper end surface 111 of the overhanging portion 102 and the upper end surface 211 of the concave wall surface portion 210 are spaced from each other when the lock engaging body 50 is in a completely engaged state. Are arranged so as to be adjacent to each other (see FIG. 9 (c2)).

  Similarly, the overhanging surface 110 and the concave wall surface portion 210 are adjacent to each other so that there is substantially no gap between them when the lock engagement body 50 is in an engaged state and in a flush state. (See FIG. 9 (a2)).

As described above, by disposing the engagement state display means 50 so as to be in an adjacent state with substantially no gap, it is possible to accurately determine whether the engagement state display means 50 is in a stepped state or a non-stepped state. Can be recognized.
Therefore, it is possible to accurately and easily confirm whether the engagement state of the lock engagement body 50 is the engagement completion state or the non-engagement state.

  In addition, as described above, the engagement state display means 50 in the elastic deformation direction orthogonal plane Hx is configured by the projecting surface 110 and the concave wall surface portion 210, whereby the engagement of the lock engagement body 50 is in the engagement completed state. In this case, the projecting portion 102 and the concave wall surface portion 210 are fitted.

  That is, in the state in which the protruding portion 102 and the concave wall surface portion 210 are fitted, it is possible to confirm whether or not there is a step between the protruding surface 110 and the concave wall surface portion 210, so that a step is formed by the entire concave edge of the concave portion 230 a. Can be confirmed.

  Therefore, since such an engagement state display means 50 can more accurately and easily confirm whether it is in the inconsistent state or in the inconsistent state, the engagement of the lock engagement body 50 is engaged. It can be confirmed accurately and easily whether the state is the completed state or the unengaged state.

  Further, by elastically deforming the elastic protruding piece 101 to the side opposite to the engaging protruding portion 220, the engagement between the engaging protruding portion 220 and the concave portion 230a can be released, but as described above, the elastic protruding piece By forming the overhanging surface 110 at the tip of 101, the elastic protruding piece 101 can be easily elastically deformed by pressing the overhanging surface 110. Thereby, engagement with the engagement hole part 120 and the engagement protrusion 220 can be cancelled | released easily.

  Moreover, the overhanging surface 110 can be engaged with the protruding portion 102 fitted in the recess 230a of the recessed wall surface portion 210 when the lock engaging body 50 is engaged as described above. The overhanging surface 110 has a function for displaying the engagement state between the engagement protrusion 220 and the engagement hole 120 and a pressure for pressing the elastic protruding piece 101 when the elastic protruding piece 101 is elastically deformed. It can have a function as a part (switch).

  As described above, the engagement state display means 50 is constituted by the upper end surface 111 of the overhanging portion 102 and the upper end surface 211 of the concave wall surface portion 210, so that these upper end surfaces 111 and 211 are in a stepped state or not. It can be specified whether the lock engaging body 50 is in an unengaged state or an engaged state, depending on whether it is in a different state.

  Further, in this manner, the engagement of the lock engaging body 50 is determined depending on whether or not the upper end surface 111 of the overhanging portion 102 and the upper end surface 211 of the concave wall surface portion 210 are different in the fitting / removing direction orthogonal plane Hz. On the other hand, in the elastic deformation direction orthogonal plane Hx orthogonal to the elastic deformation direction, the engagement of the lock engagement body 50 can be determined according to whether or not the protruding surface 110 and the concave wall surface portion 210 are different. The state can be confirmed.

  Therefore, the engagement state of the lock engagement body 50 can be confirmed accurately and easily in either the fitting / removing direction orthogonal plane Hz or the elastic deformation direction orthogonal plane Hx.

  Further, as described above, the lower-side engaging body 200 is separated from the outer peripheral wall surface of the lower cover 20 by a predetermined interval so that the elastic protruding piece 101 of the upper-side engaging body 100 is interposed when the lock engaging body 50 is engaged. Arranged and configured.

  With the configuration described above, the elastic protruding piece 101 can be concealed by the upper side engaging body 100. Since the outer surface of the upper side engaging body 100 is formed by the flat concave wall surface portion 210, the upper side engaging body 100 engages with the engaging protrusion 220 as well as the engaging protrusion 220. Therefore, the lower side engaging body 200 can be configured with an excellent appearance by concealing the elastic protruding piece 101 formed in a protruding shape.

Further, even if the elastic protruding piece 101 is unexpectedly elastically deformed by receiving an external force, the upper side engagement is prevented so that the engagement between the engagement hole 120 and the engagement protrusion 220 is not unexpectedly released. The combined protrusion 100 can protect the elastic protruding piece 101 against an external force.
Therefore, the engagement hole 120 and the engagement protrusion 220 can be maintained in the engagement completion state in which the engagement protrusion 120 and the engagement protrusion 220 are reliably engaged with each other.

  Further, as described above, the lock engagement body 50 is provided with the fitting / removing guide means 70, so that the upper cover 10 and the lower cover 20 can be smoothly fitted to each other without being displaced from each other during the fitting. Can be combined. That is, the upper side engaging body 100 and the lower side engaging body 200 can be smoothly engaged.

  In addition, the elastic protruding piece 101 is unexpectedly elastically deformed by an external force due to the fitting / removing guide protruding piece 130 protruding from both outer sides in the width direction with respect to the elastic protruding piece 101, and the engaging hole 120 and the engaging protruding portion 220. It is also possible to obtain an effect of physical protection so that the engagement with is not unexpectedly released.

  In addition, the fitting / disengaging guide wall surface portion 230 can also be configured as a support means for supporting the concave wall surface portion 210 in a state of being arranged at a predetermined interval with respect to the outer peripheral side surface of the lower cover 20.

One member (first member) of the present invention corresponds to the upper cover 10, and similarly,
The other member (second member) corresponds to the lower cover 20,
The engagement means corresponds to the lock engagement body 50,
One engaging portion (first engaging portion) corresponds to the elastic protruding piece 101 provided with the engaging hole portion 120,
The other engaging portion (second engaging portion) corresponds to the lower engaging body 200 provided with the engaging protrusion 220,
The lid side engaging portion corresponds to the upper side engaging body 100,
The projecting portion corresponds to the overhang portion 102,
The first elastic deformation direction orthogonal surface portion corresponds to the protruding surface 110,
The container body side engaging portion corresponds to the lower side engaging body 200,
The second elastic deformation direction orthogonal surface portion corresponds to the concave wall surface portion 210,
The first fitting / removing direction orthogonal surface portion corresponds to the upper end surface 111 of the overhang portion,
The second mating direction orthogonal surface portion corresponds to the upper end surface 211 of the concave wall surface portion,
The mating direction corresponds to the Z direction,
The fitting container corresponds to the electrical junction box body 1A,
Although the elastic deformation direction corresponds to the X direction, the present invention is not limited to the above-described embodiment, and the present invention is not limited to the above-described embodiment, and can be formed in various other embodiments.

DESCRIPTION OF SYMBOLS 10 ... Upper cover 20 ... Lower cover 30 ... Engagement means 50 ... Lock engagement body 60 ... Engagement state display means 70 ... Insertion / detachment guide means 101 ... Elastic protrusion piece 102 ... Overhang part 110 ... Overhang surface 111 ... Upper end surface of overhang part DESCRIPTION OF SYMBOLS 120 ... Engagement hole part 130 ... Insertion / detachment guide protrusion 200 ... Lower side engaging body 210 ... Concave wall part 211 ... Upper end surface of concave wall part 220 ... Engagement protrusion 230 ... Insertion / extraction guide wall part

Claims (10)

Engaging means capable of engaging the first member and the second member in a fitted state is provided on the first engaging portion formed on the first member, and on the second member, on the first engaging portion. An engagement structure configured with a second engagement portion formed so as to be able to be combined,
The at least one engaging portion of the first engaging portion and the second engaging portion is configured to be elastically deformable with respect to the other engaging portion,
The engagement means includes an engagement state display means for displaying an engagement state indicating whether or not the first engagement portion and the second engagement portion are engaged,
The engagement state display means;
The fitting / removal direction orthogonal surface portion orthogonal to the fitting / removing direction in which the first member and the second member are fitted or detached, and the elastic deformation direction in which the one engaging portion is elastically deformed. It is composed of at least one orthogonal surface portion among the elastic deformation direction orthogonal surface portion,
The mating direction orthogonal surface portion,
A first fitting / removing direction orthogonal surface portion formed on the first engagement portion side and a second fitting / removing direction orthogonal surface portion formed on the second engagement portion side, and the first fitting / detaching direction orthogonal surface portion And the second fitting / removing direction orthogonal surface portion are configured with an orthogonal surface portion that is in any one of a stepped state in which the stepped arrangement is different from each other and a non-stepped state in which the second fitting direction is not stepped.
The elastic deformation direction orthogonal surface portion,
The first elastic deformation direction orthogonal surface portion formed on the first engagement portion side and the second elastic deformation direction orthogonal surface portion formed on the second engagement portion side, and the first elastic deformation direction orthogonal surface portion And the second elastic deformation direction orthogonal surface portion is constituted by an orthogonal surface portion that is in any one of a stepped state in which the steps are arranged differently from each other and a non-stepped state in which the second elastic deformation direction orthogonal surface portions are not arranged differently from each other,
The engagement state display means;
In an unengaged state from when the first engagement portion starts elastic deformation until the engagement with the second engagement portion is completed,
Among the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion, at least one orthogonal surface portion is in the stepped state,
An engagement structure configured such that the one orthogonal surface portion is in the non-stepped state when the first engagement portion is in an engagement completion state where the engagement with the second engagement portion is completed. The elastic deformation direction orthogonal surface portion is disposed along the side surface of the container body,
The engagement state display means;
It is constituted by the fitting / removing direction orthogonal surface and the elastic deformation direction orthogonal surface,
The first engagement portion and the second engagement portion are in the non-engaged state, and at least the one orthogonal surface portion is in the stepped state, and the first engagement portion and the second engagement portion are Is in the engaged state,
The engagement structure according to claim 1, wherein the orthogonal surface portions of both the fitting / removing direction orthogonal surface portion and the elastic deformation direction orthogonal surface portion are in the non-stepped state. Any one of the first fitting / removing direction orthogonal surface portion, the second fitting / removing direction orthogonal surface portion, and the first elastic deformation direction orthogonal surface portion and the second elastic deformation direction orthogonal surface portion is the first engagement. The engagement structure according to claim 1, wherein the portion and the second engagement portion are arranged so as to be adjacent to each other in the engagement completion state. The first engagement portion is configured to be elastically deformable with respect to the second engagement portion,
In the first engaging portion, a protruding portion that is protruded compared to the other portion is formed in the first engaging portion at a portion facing the second engaging portion, and the protrusion On the tip side of the shaped part, a projecting surface part formed in a planar shape on the tip side is formed,
As the first member and the second member are fitted to each other, a concave wall surface portion having a concave portion into which the convex surface portion can be fitted from the concave opening direction is formed in the second engaging portion. Forming,
The engagement structure according to any one of claims 1 to 3, wherein the projecting surface portion is configured as the first elastic deformation direction orthogonal surface portion, and the concave wall surface portion is configured as the second elastic deformation direction orthogonal surface portion. . The first engaging portion is formed of an elastic protruding piece having elasticity protruding from a side surface of the first member, and the protruding surface is formed on a facing portion facing the second engaging portion at a tip portion of the elastic protruding piece. The engagement structure according to claim 4, wherein: In the end surface portion corresponding to the thickness portion on the side having the concave portion in the concave wall surface portion, both end surface portions with respect to the width direction of the concave portion are set as second end surface portions, and the protruding portion protrudes. An end surface portion located on the opposite side to the fitting direction of the projecting surface portion with respect to the concave portion in the end surface on the outer peripheral side in the direction is set as the first end surface portion
The engagement structure according to claim 4 or 5, wherein the first end surface portion is configured by the first fitting / removing direction orthogonal surface portion, and the second end surface portion is configured by the second fitting / removing direction orthogonal surface portion. . The second engaging portion is configured such that the concave wall surface portion is disposed at a predetermined interval with respect to the side wall surface of the second member, and between the concave wall surface portion and the side wall surface of the second member. The engagement structure according to any one of claims 4 to 6, wherein at least a part of the first engagement portion is disposed. The fitting / removing guide means for guiding the first member and the second member in the fitting / removing direction is provided in at least one of the first engaging portion and the second engaging portion. The engagement structure according to any one of the above. The stepped state is a state where at least one of the orthogonal surface portions is not flush with each other,
The engagement structure according to any one of claims 1 to 8, wherein the non-stepped state is a state in which the one orthogonal surface portion is flush. The engagement structure according to any one of claims 1 to 9,
One of the first member and the second member is configured with a lid, and the other member is configured with a container body,
Of the first engaging portion and the second engaging portion, the engaging portion formed on the one member is constituted by a lid side engaging portion, and the engaging portion formed on the other member is The container body side engaging portion,
The main body container, and the lid that is fitted to the main body container so as to close the opening of the main body container, and the lid-side engaging portion and the container main body-side engaging portion in a fitted state. Engaging container to engage.

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