JP2598413Y2 - Mounting structure for case members - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a case member composed of upper and lower members, such as an electric junction box used for electric wiring for automobiles.

[0002]

2. Description of the Related Art In FIG.
No.), a is the electrical connection box, comprising more the lower cover a ₁ and the upper cover a _{2. On} the side wall of the upper cover a2, an outwardly open L-shaped locking member b which is extended in the vertical direction with a space therebetween is provided.
_1, b ₂ main locking frame b is provided comprising a main locking frame b has a locking wall b ₂ towards the horizontal direction in between the pair of L-shaped cross section engaging member b _1, b ₂ ing. In the side wall of the lower cover a _1, the L-shaped cross section engaging member b _1, b matched pair of L-shaped cross section engaging member c ₁ state in the extending direction of _1,
secondary locking frame c is provided consisting of c _1.

On the side wall of the connector d, locking members e ₁ , e having an L-shaped cross section which are open inward and extend in the vertical direction at intervals.
Engaging frame e is provided consisting of _1, engaging frame e has an engagement portion e ₂ at the upper end of L-shaped cross section engaging member e _1, e _1,
And a locking projection e ₃ in between L-shaped cross section engaging member e _1, e _1.

In the above structure, the connector d is provided with an engagement frame e.
Opposition to while engaged with the main locking frame b of the upper cover a ₂ engage the Fukukakaritomewaku c is moved downward, the engaging portion e ₂ is the upper end of L-shaped cross section engaging member b ₁ are those in which the locking projection e ₃ in case that a state engaged with the mounting state is fixed to the locking wall b ₂ (FIG. 6), the main engagement of engagement frames e the upper cover a ₂ in the mounted state since engages in Fukukakaritomewaku c of the lower case a ₁ with engaging frame b, when a force P as removing the connector d is applied, the main, auxiliary locking frame b, strong by c held You can compete with power.

Meanwhile, when the upper cover a ₂ to the lower cover a ₁ in this case is not bound in the normal position,
The ends of the main locking frame b and the sub-locking frame c do not match, and when the connector d is mounted, the engagement frame e abuts against the end of the sub-locking frame c. There is a drawback that lacks the property (FIG. 7).

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in a state where the upper and lower case members are connected, a locking frame provided at a corresponding position of the upper and lower case members is provided. It is made to match.

[0007]

In order to achieve the above object, according to the present invention, a bracket, a side wall of one of the two case members connected to each other are provided.
The engagement groove for the engagement member such as a connector or relay
Another against the engaging member to the side wall of the other case member provided with a main locking frame which is formed to extend in the casing member direction
Engaging grooves to provide a Fukukakari engaging frame which is formed opposite to the engaging grooves of a pair of coupling-regulating the pair of coupling-regulating protrusions provided with a projection projecting to the other case member direction to the main locking frame during <br/> smell provided a lock arm flexures Allowed Te, the binding-regulating projection is characterized by comprising forming a bond-regulating recess for engaging the Fukukakari engaging frame.

[0008]

When the pair of case members are connected, the connection regulating projections of the main locking frame are engaged with the coupling regulating recesses of the sub-locking frame so that the end faces of the main and sub-locking frames are aligned.

[0009]

EXAMPLES In FIG. 1, A is the electrical junction box is interposed automotive wiring harness, the lower cover A ₂ as a cover A ₁ and the lower case member above as an upper case member
And a bus bar circuit board or the like is housed inside. Fuse box 1 and the relay connector 2 is provided in the upper cover A _1, the connector 3 is provided in the lower cover A _2. Further, the upper cover A _1, to facilitate mounting of the fastening bolt, mortar-like guide 4 for guiding bolt tightening jig (air tools) are formed.

[0010] In the side wall of the upper cover A _1, extending on the base portion 5a, the engagement groove 5f of the inner side opening in the lower cover A ₂ direction
A main locking frame 5 is provided in which a pair of long -shaped L-shaped locking members 5b, 5b are opposed to each other with a space therebetween. In the main locking frame 5, the base 5
a pair of coupling-regulating protrusion 5d that extends to the opposing lower cover A ₂ side of the downward side edges of the cutout space 5c with intermediate groove section portion 5c of a is formed, 5d are provided, coupled-regulating protrusion A flexible lock arm 6, which is cantilevered by connecting a base 6a to 5d, 5d, is located in the cutout space 5c.

[0011] Tapered guide surfaces 5e, 5e are formed on the surfaces of the coupling regulating protrusions 5d, 5d. Lower cover A ₂
In the side wall of, in response to the main locking frame 5 of the upper cover A ₁ sub locking frame 7 it is provided. The Fukukakaritomewaku 7, base part on 7a, the upper cover A ₁ the engagement groove 7f of the inner side opening
A pair of L-shaped locking members 7b, 7b extending in the direction and facing the engagement groove 5f are formed so as to face each other at intervals. In the middle of the base 7a, there is formed a coupling regulating recess 7c into which the coupling regulating protrusions 5d of the main locking frame 5 enter and engage.

[0012] In the above construction, when coupling the upper cover A ₁ and the lower cover A _2, bond-regulating protrusion 5d engages with the coupling-regulating concave portion 7c, the upper and lower main, Fukukakaritomewaku 5,7, namely an L
The end faces of the V -shaped locking members 5b, 7b , ie, the engagement grooves 5f, 7f
Matches exactly. B is a bracket made of steel plate, the lock hole 8a in the engaging plate portion 8 is formed, the engagement step 9 in contact with the Fukukakaritomewaku 7 of the lower cover A ₂ is formed on the base of the engaging plate portion 8 ing.

In the above configuration, when the bracket B is connected to the main and sub-locking frames 5 and 7 of the electric junction box A, the engaging plate portion 8 has the L-shaped locking member 7 with the tapered guide surface 5e.
Subsequently while being smoothly guided b into the engaging groove 7f in enters the engagement groove 5f in an L-shaped cross section engaging member 5b, the locking projection 6b of the flexible locking arm 6 is in the locking hole 8a At this time, the engagement step 9 of the bracket B abuts against the sub-locking frame 7 and the upper and lower covers A
_1, to lock the binding of A ₂ (Fig. 3).

In the above description, a flat plate-shaped bracket has been exemplified as an engaging member for the main and sub-locking frames 5 and 7.
The present invention is not limited to this, and it is also possible to attach an engagement member such as a connector or a relay provided with an open L-shaped cross-section locking member that engages with the L-shaped cross-section locking members 5 and 7. It is.

As shown in FIG. 4, the upper and lower covers A ₁ ,
A of when the coupling is shifted by floating of one is _2, the engaging plate portion of the bracket B between the coupling-regulating protrusions 5d of the upper cover A ₁ and the lower cover A ₂ L-shaped cross section engaging member 7b 8
Is automatically corrected to the normal state.

[0016]

[Effects of the Invention] As described above, the present invention relates to claim 1.
In addition, in two case members that are connected to each other,
An engagement groove for an engagement member such as a bracket, a connector, or a relay is formed on a side wall of one case member in a direction toward the other case member.
Said another engagement groove for the engaging member to the side wall of the other case member provided with a main locking frame which is formed by extending the
A sub-locking frame formed facing the engaging groove is provided, and the main locking frame is
The lock arm flexures friendly Te the pair of coupling-regulating protrusion between odor provided provided with a pair of coupling-regulating projection projecting in the other case member direction, the coupling-regulating recess the coupling-regulating protrusion is engaged with the Fukukakari engaging frame When the two case members are joined, the engagement of the coupling regulating projection and the coupling regulating recess aligns the end surfaces of the engaging grooves in the main and sub-locking frames, so that a bracket, a connector or the like is formed. Is easy to engage with the mounting member.

According to the second aspect of the present invention, by using the coupling regulating projection projecting from the case member as a support base, the flexible lock arm can be installed over a relatively long range, and can be attached to and detached from the mounting member. Work is facilitated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which two case members according to the present invention are separated.

FIG. 2 is a perspective view of a main part in a state where two case members of FIG. 1 are combined.

FIG. 3 is a sectional view of a main part in the state of FIG. 2;

FIG. 4 shows a state in which two case members are incompletely connected.
It is sectional drawing corresponding to FIG.

FIG. 5 is a perspective view of a conventional example in a separated state.

6 is a cross-sectional view taken along line XX of FIG. 5 in a coupled state of the conventional example.

FIG. 7 is a cross-sectional view showing an operation of a conventional example in an incompletely connected state.

[Explanation of symbols]

A ₁ , A ₂ Two case members 5 Main locking frame 5d Coupling regulating protrusion 5f Engaging groove 6 Flexible lock arm 7 Secondary locking frame 7c Coupling adjusting recess 7f Engaging groove

──────────────────────────────────────────────────続 き Continuing on the front page (72) Minoru Imamura 252 Kawashimada, Gotemba-shi, Shizuoka Prefecture Inside Yazaki Parts Co., Ltd. (56) References Hirai 2-16584 (JP, U) Hirai 62-198815 (JP) , U) Japanese Utility Model Showa 64-40224 (JP, U) Japanese Utility Model Application Hei 1-171518 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02G 3/16 H01R 13/74

Claims (2)

(57) [Scope of request for utility model registration] In one case member, an engagement groove for an engagement member such as a bracket, a connector, or a relay is formed on a side wall of one case member.
Another engagement with the engaging member to the side wall of the <br/> other case member provided with a main locking frame which is formed by extending the member direction
The Fukukakari engaging frame which is formed opposite to the engaging groove a groove is provided, the pair of coupling-regulating protrusion between odor provided with a pair of coupling-regulating projection projecting in the other case member direction to the main locking frame
Allowed Te FLEXIBLE provided a lock arm, the mounting structure of the case member to which the coupling-regulating protrusion Fukukakari engaging frame is characterized by comprising forming a bond-regulating recesses for engagement. 2. The base of the flexible lock arm is connected to the base.
2. The method according to claim 1, wherein the control projection is connected to the control projection.
Mounting structure on the mounted case member.