JPH1070811A - Member connecting structure of storage box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a member connecting structure of a storage box side wherein smooth engaging work between a connecting box body connected with a wire harness and an storage box can be realized. SOLUTION: A frame part is protruded from a side wall 4 of a lower cover of a storage box (an auxiliary machine box). This frame part is equipped with at least a central wall 42, a pair of both side parts 45 and an upper frame 44. A recessed part 46 which generates an engaging relation with an anchor pawl of a connecting box side is formed with the central wall 42, a pair of both side parts 45 and the upper frame part 44. The top surface 44a of the upper frame part 44 is provided with a tapered slant surface and acts as a guide surface introducing a wire harness into a storage chamber of the storage box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage box such as an accessory box for storing an electric circuit of an automobile. In particular, the present invention relates to a structure in which a junction block used as a branch connection box of a wire harness and a cover member constituting a storage box for storing the junction block are mutually connected and locked.

[0002]

2. Description of the Related Art Conventionally, as a connection structure between a junction block and one of a lower cover and an upper cover which constitute an accessory box as a storage box, in addition to bolt fixing using bolts and nuts, a real open flat type is used. 55717
A lock structure of a cassette lock system as disclosed in Japanese Patent Application Laid-Open No. H10-209,086 is known.

With reference to FIG. 9, the locking structure of Japanese Utility Model Laid-Open Publication No. 5-55717 will be described. A connector main body 11 as shown in FIGS. 11A and 11B is formed integrally with a part of the junction block. Box-shaped connection part 33
Is provided with a horizontal connecting portion 34 for connecting both arms of the inverted U-shaped locking hook portion 31. A vertically extending support plate portion 35 is formed at the end of the horizontal connection portion 34, and a locking claw 30 is formed on the outer surface of the support plate portion 35.

On the other hand, on the inner surface of the side wall of the under cover (lower cover) of the storage box, there is provided a connector main body mounting portion 12 as shown in FIGS. 11C and 11D. An inverted U-shaped projection 16 is provided along the outer edge of the outer wall portion 15 of the undercover side wall 14. A concave portion 17 is formed so as to be surrounded by the protrusion 16 and the outer wall portion 15, and the upper frame portion 16 a of the protrusion 16 functions as a locking point in the concave portion 17.
The top surface 16b of the inverted U-shaped projection 16 is formed horizontally with respect to the vertically extending undercover side wall 14.

The support plate 35 of the connector body 11 faces the recess 17 of the connector body mounting portion 12 and the locking claw 30 is disposed so as to engage with the upper frame portion 16a in the recess 17. The junction block is connected to the under cover of the storage box.

[0006]

A wire harness extends from the lower surface of the junction block. The length of the wire harness in the storage box is limited because the wiring harness must be stored in a storage box with a limited storage volume, but the work of fitting the junction block to the under cover is easier. From the point of view, some extra length is left in the wire harness.

However, when the junction block is brought close to the undercover in order to connect the junction block to the undercover, the connecting body 11 formed on the junction block side and the undercover side are not connected due to the extra length of the wire harness. May get into the space between the connector body attaching portion 12 and the connector main body attaching portion 12 provided in the connector. In particular, as described above, since the top surface 16b of the inverted U-shaped projection 16 of the connector body attachment portion 12 is horizontal (that is, a relationship orthogonal to the undercover side wall 14),
The L-shaped step formed by the top surface 16b and the side wall 14 is caught by the wire harness, which hinders the fitting between the junction block and the undercover.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to prevent a wire harness from being caught between a junction block and a cover member of a storage box when the cover is fitted to the junction block. An object of the present invention is to provide a member connection structure in a storage box that prevents the junction box and the storage box from performing a smooth fitting operation.

[0009]

According to a first aspect of the present invention, there is provided a locking connector which is connected to a wire harness to be stored in a storage chamber of a storage box and engages with the storage box. Is a member connection structure provided on the storage box side to lock and fix the connection box body with the storage box, and when the connection box body is engaged with the storage box, The gist of the invention is to provide a biting prevention means for preventing biting.

According to a second aspect of the present invention, in the member connection structure of the storage box according to the first aspect, a frame portion provided with a locking portion which is engaged with the locking portion of the connection box body. The gist is that the biting prevention means comprises at least one inclined guide surface provided on a part of the frame portion.

According to a third aspect of the present invention, in the member connection structure of the storage box according to the second aspect, the gist is that the guide surface is formed at the top of the frame.

The invention described in claim 4 is the invention according to claim 2 or 3.
In the member connection structure of the storage box described in the above, the frame body portion is provided as a wall portion protruding from the side wall of the storage box toward the storage chamber side, and the wall portion is locked by the frame body portion. The gist is that a concave portion is formed as a part.

According to a fifth aspect of the present invention, in the member connection structure of the storage box according to the first aspect, the biting prevention means is provided on the connection box body and extends vertically from the connection box body. The gist consists of a guide wall.

In the embodiments of the invention described below, the "connection box" described in the claims or the means for solving the problem is constituted by a junction block 6, and similarly the "jam prevention means". Is the crown 43
a, 44a, 45a and a bottom wall portion 81. Similarly, the "locking portion" is formed by the concave portion 46 and the locking claw 65, and the "part of the frame portion" is also formed by the side portions 42, 43, 44, 4
5, 71, and the “guide surface” is also at the top of the head 4
3a, 44a, and 45a. Similarly, the “guide wall” includes a bottom wall portion 81.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment in which the present invention is embodied in an accessory box for an automobile will be described in detail with reference to FIGS.

An accessory box (storage box) for a vehicle includes a lower cover 1 as shown in FIG. 1 and an upper cover (not shown). Lower cover 1 of this accessory box
Before the upper cover is attached, a junction block (connection box) 6 is attached so as to close the storage chamber 1a opened above the lower cover 1. A wire harness (not shown) extends from below the junction block 6, and the wire harness is housed in the storage room 1 a by attaching the junction block 6 to the lower cover 1. Part of the lower cover 1
A U-shaped recess 2 for grommet fitting is cut out, and a wire harness passed through a grommet (not shown) extends through the U-shaped recess 2.

On the inner surface of the side wall 4 forming the storage chamber 1a of the lower cover 1, three mounting portions 40 (only one is shown) are formed integrally with the side wall 4. Each mounting portion 40 has a member connection structure on the accessory box side as a storage box. on the other hand,
On each side of the junction block 6, three locking connectors 60 (only two are shown) are formed integrally with the main body of the junction block 6 in correspondence with the three mounting portions 40. Regarding the mounting portion 40 and the locking connection body 60,
Each will be described with reference to the drawings.

As shown in FIG. 2, three mounting portions 40 are provided on each side wall 4 of the lower cover 1 of the accessory box that divides the storage room 1a. The number of mounting parts 40
It may be appropriately increased or decreased.

FIGS. 3A and 3B show the shape of the one mounting portion 40. FIG. The mounting portion 40 has an outer side wall 41, a center wall 42, and an inner side wall 43 which are parallel to the side wall 4 and are integrally formed with the side wall 4. The central wall 42 is closer to the storage room 1 than the side wall 4.
It is formed so as to extend downward from an upper frame portion 44 protruding toward the a side (that is, the inner wall 43 side). Further, as shown in FIG. 3A, a pair of both side parts 45 are provided on both sides of the central wall 42. These side portions 45 are formed integrally with the central wall 42 and are connected by the upper frame portion 44. As a result, the two side portions 45 and the upper frame portion 44 form a concave portion 46 as a locking portion having the central wall 42 as a bottom wall.
Are formed.

The top surface 4 formed on the top of the upper frame 44
4a is provided as a tapered surface having an inclination angle of an angle A1 with respect to a horizontal line to the lower cover side wall 4 extending vertically. The top surface 43a of the top of the inner wall 43 is also formed as a tapered surface having an inclination angle of A2 with respect to the horizontal line. Further, as shown in FIG. 3A, at the position corresponding to the stepped shoulder between each side portion 45 and the upper frame portion 44, the top surface of each side portion 45 is formed as a tapered surface having an inclination angle A3 with respect to the horizontal line. 45a are formed.
Each of these top surfaces 43a, 44a, 45a is inclined so as to be divergent with respect to the horizontal line, so that wires approaching the mounting portion 40 from above are obliquely downwardly directed, that is, inside the storage chamber 1a. Acts as a guide surface for guiding

In FIG. 3A, the distance between the lower edges of the top surfaces 45a of the pair of side portions 45 is set to W3. The central wall 42, the inner wall 43, the upper frame 44, and both sides 45 constitute a frame of a member connection structure on the accessory box (storage box) side.

FIGS. 4A and 4B show the shape of one locking connection body 60 provided on the side wall of the junction block 6. FIG. The locking connector 60 includes a pair of left and right side protrusions (locking hooks) 62 projecting from the block side wall 61. The block side wall 61 is provided with a horizontal connecting portion 63 for connecting both side protruding portions 62. Horizontal connection 6
A support plate portion 64 extending vertically upward is formed at the tip of 3, and a locking claw 65 as a locking portion is formed on an outer surface of the support plate portion 64.

A recess 66 is formed in each side protrusion 62 as shown by a broken line in FIG. 4A. These recesses 6
6 is provided to insert and hold both side portions 45 of the mounting portion 40 when the mounting portion 40 and the locking connection body 60 are engaged. As can be seen from FIG. 4A, each recess 66 has an upper inclined surface 66a slightly inclined with respect to the vertical direction and a lower inclined surface 66b inclined more than the upper inclined surface 66a.
And are divided by As a result, the distance between the upper ends of the upper inclined surfaces 66a of both the concave portions 66 is set to the width W1, and the distance between the lower ends of the lower inclined surfaces 66b of the concave portions 66 is set to the width W2 (W1 <W2). .

Incidentally, the width W2 is set sufficiently larger than the width W3 of the mounting portion 40. On the other hand, the width W1 is set slightly wider than the width W3. Therefore, when the locking connection body 60 of the junction block 6 is engaged with the mounting portion 40 of the lower cover, the upper frame portion 44 of the mounting portion 40 having a width smaller than the width W3 is formed with an opening much wider than the width W3. It will be inserted into the locking connection body 60 having the width W2. Therefore, it becomes easy to insert the mounting portion 40 into both the locking recesses 66 of the locking connection body 60.

Further, as the mounting portion 40 is inserted into the locking connection body 60, the clearance between the sides of the two side portions 45 of the mounting portion 40 and the upper inclined surface 66a of the concave portion 66 gradually decreases. The upper ends of both sides 45 are recessed 66
(W3−W1) / 2 between the side of the both sides 45 and the upper inclined surface 66a of the concave portion 66 when the fitting of the mounting portion 40 and the locking connector 60 is completed by reaching the upper end of Is minimized. This minimum clearance (W3-W1) / 2
Is set such that no backlash occurs between the junction block 6 and the lower cover 1.

Further, as shown in FIGS. 4A and 4B, a tapered surface 68a is formed on the side edge of the bottom wall 68 of the junction block 6 so as to be inclined into the inside of the junction block 6. This tapered surface 68a
Has an inclination angle of A4 with respect to the horizontal line. The inclination angle A4 is set substantially equal to the inclination angle A2 of the top surface 43a of the inner side wall 43 of the mounting portion 40.

FIGS. 5A and 5B show an engagement state between the mounting portion 40 and the locking connector 60 when the junction block 6 is fitted into the lower cover 1 of the accessory box (storage box). In order to realize such engagement, it is necessary to approach the junction block 6 from above the lower cover 1. In this case, the wire harness extending from the lower surface side of the junction block 6 has an extra length, so that the top surface 43a of the inner wall 43 of the mounting portion 40, the top surface 44a of the center frame upper frame portion 44, or the top surface of both side portions 45 are formed. Face 45
a. However, since these top surfaces 43a, 44a, and 45a are formed as tapered inclined surfaces, even after the contact of the wire harness, the wire harness is moved obliquely downward with the movement of the junction block 6 toward the storage chamber 1a. Guide as if guided inside. For this reason, the wire harness does not catch on these top surfaces 43a, 44a, and 45a and stay at that position to prevent the lower cover 1 and the junction block 6 from being fitted. Rather, the tapered top surfaces 43a, 44a, and 45a positively guide the wire harness into the storage chamber 1a, so that the junction block can be easily fitted and contribute to improvement in workability. Produces a special effect.

(Second Embodiment) FIGS. 6 to 10 show a second embodiment in which the present invention is embodied in an accessory box for an automobile.
This will be described in detail based on FIG.

The second embodiment differs from the first embodiment in that each mounting portion 40 provided on each side wall 4 of the storage chamber 1a in the lower cover 1 and each side wall portion of the junction block 6 are provided. This is the point with respect to each locking connection body 60. Therefore, in the present embodiment, the first
The same reference numerals are used for the same components as those in the embodiment, and the detailed description is omitted.

FIGS. 6A and 6B show the shape of one mounting portion 70 of the second embodiment. The mounting portion 70 is obtained by changing the inner wall 43 of the mounting portion 40 of the first embodiment to an inner wall 71. The inner wall 71 is an inner wall 43 of the mounting portion 40.
It is formed narrower than that. The top surface 71a formed at the top of the inner wall 71 forms a horizontal plane.

FIGS. 7A and 7B show the shape of the one-stop connection body 80 of the second embodiment. The locking connection body 80 is
In this embodiment, the bottom wall 68 of the locking connection body 60 of the embodiment is changed to a bottom wall 81. The bottom wall portion 81 extends vertically downward from the bottom surface of the junction block 6 by a length 1 and is formed so as to be slidable on the side surfaces 45 of the mounting portion 70 and the exposed surfaces of the inner side wall 71. . Therefore, the bottom wall portion 81 has a shape having a concave portion 82 at substantially the center thereof. In addition, the length l of the bottom wall portion 81 is set substantially equal to the surplus length of the wire harness 83 described later.

FIGS. 8 to 10 show accessory boxes (storage boxes).
5 shows an engagement state between the mounting portion 70 and the locking connector 80 when the junction block 6 is fitted into the lower cover 1 of FIG. The fitting of the junction block 6 to the lower cover 1 is performed in the same manner as in the first embodiment.
That is, the junction block 6 is approached from above the lower cover 1 to engage the mounting portion 70 with the locking connector 80. At this time, as shown in FIG. 8, the wire harness 83 extending straight from the lower surface side of the junction block 6 has an extra length, so that the bottom wall portion 81 and the inner wall 71 contact each other as shown in FIG. It may begin to bend from the beginning, and may be bent toward the mounting portion 70 as shown in FIG. However, in this case, as shown in FIGS. 9 and 10, the bottom wall portion 81 comes into sliding contact with the exposed surface of the inner side wall 71 due to the approaching downward movement of the junction block 6. The wire harness 83 does not enter between itself and the wire harness 83. Therefore, the wire harness 83 is caught on the top surface 71 a of the inner side wall 71, and the wire harness 83 is caught between the lower cover 1 and the junction block 6, which hinders the fitting between the lower cover 1 and the junction block 6. There is no. As a result, as in the first embodiment, the fitting operation of the junction block 6 is facilitated, and a positive effect of contributing to improvement in workability is produced. Moreover, it is possible to prevent the wire harness 83 from being caught between the inner wall 71 and the bottom wall 81 and damaged.

It should be noted that the present invention is not limited to the above embodiments, but may be implemented in the following manner, for example. In the above-described embodiments, the locking portions in the member connection structures 40 and 70 on the accessory box side are provided as the concave portions 46. However, the locking portions in the member connection structures are claws or protrusions, and the junction block 6 The locking portion of the locking connection body may be configured as a recess.

In the above-described embodiment, the member connection structures 40 and 70 are provided on the lower cover 1 of the accessory box. However, the member connection structure with the junction block may be provided on the upper cover side of the accessory box.

Here, in addition to the technical ideas described in the claims, the following technical ideas can be grasped from the disclosure of the present invention.
That is, "(1) In the connection box body provided with the locking connection body connected to the wire harness to be stored in the storage room of the storage box and engaged with the storage box,
And a connection box having a tapered surface 68a formed on the side edge of the bottom wall 68 of the connection box 6 below. According to this technical idea (1), attachment of the connection box body 6 to the storage box becomes easy.

"(2) The connection box body is set so that the inclination angle of the tapered surface 68a corresponds to the inclination angle of the inclined guide surface formed in a part of the frame of the storage box. ". The connection box body according to this technical idea (2) can enhance the effect of preventing the wire harness from biting in cooperation with the member connection structure in the storage box described in each claim of the claims.

It should be noted that the term "connection box" as used in the present specification means any form of inclusion provided to connect a wire harness or other wiring to various electric circuits or electronic components. However, the present invention is not limited to a so-called junction block. Also, "Auxiliary equipment box"
Are not limited to those for automobiles, boxes for storing wire harnesses and other wiring together with the “connection box”,
It should be understood that casings and other containers are generically referred to.

[0038]

As described above in detail, according to the first to fifth aspects of the present invention, when the connection box body connected to the wire harness is fitted to the storage box, the connection box body and the connection box body are connected to each other. By preventing the wire harness from being caught in the connection box, a smooth fitting operation between the connection box body and the storage box can be realized.

[Brief description of the drawings]

FIG. 1 is an exemplary perspective view showing a storage box (accessory box) and a connection box (junction block) of a first embodiment in a separated state;

FIG. 2 is a plan view of a lower cover of the accessory box according to the first embodiment.

3A and 3B show a member connection structure on the accessory box side of the first embodiment, FIG. 3A is a front view thereof, and FIG. 3B is a sectional view taken along line 3B-3B in FIG. 3A.

4A and 4B show a locking connection body on the connection box side of the first embodiment, FIG. 4A is a front view thereof, and FIG. 4B is 4B in FIG. 4A.
Sectional drawing in line 4B.

5A and 5B show a locked state between the accessory box and the connection box body of the first embodiment, FIG. 5A is a plan view of a main part thereof, and FIG.
Sectional drawing in 5A-5B line in A.

6A and 6B show a member connection structure on the accessory box side according to the second embodiment, FIG. 6A is a front view thereof, and FIG. 6B is a sectional view taken along line 6B-6B in FIG. 6A.

7A and 7B show the locking connection body on the connection box side of the second embodiment, FIG. 7A is a front view thereof, and FIG. 7B is a view 7B in FIG.
Sectional drawing in the -7B line.

FIG. 8 is an essential part cross-sectional view showing a locked state between the accessory box and the connection box body according to the second embodiment.

FIG. 9 is an essential part cross-sectional view showing a locked state between the accessory box and the connection box according to the second embodiment;

FIG. 10 is an essential part cross-sectional view showing a locked state between the accessory box and the connection box body according to the second embodiment;

11A and 11B show a conventional connection structure between an accessory box and a connection box body. FIG. 11A is a front view of a connection body on the connection box side, and FIG. 11B is a cross-sectional view taken along line 11B-11B in FIG. 11A. 11C is a front view of a connector main body mounting portion on the accessory box side, and FIG. 11D is 11D-11D in FIG. 11C.
Sectional view at the line.

[Explanation of symbols]

1. Lower cover of accessory box as storage box, 1a ...
Storage chamber, 4 ... side wall of lower cover, 6 ... junction block as connection box, 42 ... center wall, 43 ... inner wall, 44 ... upper frame, 45 ... sides (42, 43, 44,
45, 71 form the frame of the storage box), 43a, 4
4a, 45a: a top surface as a biting prevention means and a guide surface; 46, a concave portion as a locking portion; 60, a locking connector; 65, a locking claw as a locking portion; 81, a biting prevention means; The bottom wall as a guide wall.

Claims (5)

[Claims] The present invention relates to a connection box, which is connected to a wire harness to be stored in a storage chamber of a storage box and has a locking connection body that engages with the storage box. A member connection structure provided on a storage box side, wherein the member connection structure in the storage box includes a biting prevention unit that prevents biting of the wire harness when the connection box body is engaged with the storage box. . 2. The member connection structure for a storage box according to claim 1, further comprising: a frame portion provided with a locking portion that forms an engagement relationship with a locking portion of the connection box, wherein the biting prevention is performed. The means is a member connection structure in a storage box including at least one inclined guide surface provided on a part of the frame body. 3. The member connecting structure in the storage box according to claim 2, wherein the guide surface is formed on a top of the frame body. 4. The member connection structure for a storage box according to claim 2, wherein the frame is provided as a wall protruding from a side wall of the storage box toward the storage chamber. A member connection structure in a storage box in which a recess is formed as a locking portion of the frame body portion. 5. The member connection structure for a storage box according to claim 1, wherein the biting prevention means is provided on the connection box body and includes a guide wall extending vertically from the connection box body. Member connection structure.