JP3497544B2 - Component mounting structure - 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 of parts used for mounting parts such as an electric junction box on the body of an automobile.

[0002]

2. Description of the Related Art For example, when an electric junction box is mounted on a vehicle body, a screw is used for main fixing, but a simple engaging mechanism (temporary fixing mechanism) is used to improve workability when screwing.
Is used for temporary fixing. In many cases, a combination of an engaging protrusion and an engaging hole is used for temporary fixing.

FIG. 3 shows a mounting structure of a conventional electric junction box described in Japanese Utility Model Laid-Open No. 63-100883. In this conventional example, a clip 2 serving as an engaging projection for temporary fastening is projected on the upper end of the rear surface of the electrical junction box 1, and a screw through hole 3 is provided on the lower end. The bracket 6 having the engagement hole 5 formed in the front wall is fixed, and the screw 7 is provided at a position away from the bracket 6.
, The clip 2 is engaged with the engaging hole 5 of the bracket 6 and temporarily fixed, and the screw 7 is passed through the screw through hole 3 and the nut 8 is screwed into the tip of the screw 7, so that electrical connection is achieved. The box 1 is fixed to the vehicle body 4. In order to improve the engagement between the clip 2 and the engagement hole 5, a guide piece 10 that fits into the engaging portion 9 on the bracket 6 side is provided on the back surface of the electrical junction box 1.

Another conventional example is shown in FIG. In this conventional example, a provisional fastening engagement projection 22 that projects to the back side is provided at the upper end of a rectangular electrical junction box 21, and screw insertion holes 23, 2 are provided at positions apart from this provisional engagement engagement projection 22.
4, L-shaped brackets 26, 27, 28 are fixedly provided on the vehicle body 25 side at positions corresponding to the temporary engagement engaging projection 22 and the screw holes 23, 24, respectively. Then, on the front wall portion of the bracket 26, the temporary engaging projection 2
Two engaging holes 29 that engage with each other are provided, and screw holes 31 and 32 into which the main fixing screws 30 are screwed are provided on the front walls of the other two brackets 27 and 28.

In this case, the temporary engaging projection 22 has a rectangular cross section, and a hook portion 22a which is bent laterally is provided at the tip thereof. Further, the engagement hole 29 is provided with a passage portion 29a on the upper side through which the stopper portion 22a can be inserted and removed, and a locking wall 29b on the lower side for preventing the stopper portion 22a from coming off. Therefore, the opening shape of the engagement hole 29 has a hook shape when viewed from the front.

In this mounting structure, in order to mount the electric connection box 21 on the vehicle body 25, first, a hook-shaped stopper portion 22a at the tip of the temporary engagement engaging projection 22 provided on the electric connection box 21.
To the engaging hole 29 of the bracket 26 fixed to the vehicle body 25 side.
It is put in the passage part 29a of the. Then, by lowering the stopper portion 22a from that position, the stopper portion 22a is positioned behind the locking wall 29b of the engagement hole 29. Then, the stopper portion 22a is caught on the locking wall 29b,
The electric junction box 21 is temporarily fixed to the vehicle body 25. In this temporarily fixed state, the main fixing screw 30 is passed through the screw through holes 23 and 24 of the electric connection box 21, and the tip thereof is fixed to the bracket 27,
The screw holes 31 and 32 of 28 are screwed together. As a result, the electric junction box 21 is fixed to the vehicle body 25.

[0007]

By the way, in the conventional example of FIG. 3, although the engaging hole 5 for temporary fixing is arranged on the bracket 6, the screw 7 for main fixing is separated from the bracket. It is located on the car body 4. Therefore, because the engaging hole 5 and the screw 7 are located in different members, the positioning accuracy of the screw 7 and the screw passing hole 3 in the temporarily fixed state cannot be increased so much, and it is difficult to fix the screw 7 permanently. There is. Further, since the clip 2 is temporarily fixed by passing it through the engaging hole 5 formed in the front wall of the bracket 6, it is difficult to confirm the position of the engaging hole from above during temporary fixing, and the temporary fixing workability is poor. There is a problem. In addition, there is a problem that it is very difficult to remove when the one in the engaged state is removed.

Further, in the conventional example shown in FIG. 4, since the engaging hole 29 for temporary fixing and the screw holes 31, 32 for main fixing are formed in separate brackets 26, 27, 28, respectively. In some cases, the mutual positioning accuracy of the screw holes 31 and 32 and the screw holes 23 and 24 in the temporarily fixed state cannot be increased so much, and it may be difficult to fix the screws 30 permanently. Further, for example, as shown in FIG. 5, when the electric junction box 21 is mounted in a posture in which the electric junction box 21 is tilted forward from the vertical position, the worker works while visually observing from above, and therefore the engaging hole 29 for temporary fixing (see FIG. It is difficult to visually confirm the position (see 4) and the workability during temporary fixing is poor. Further, when removing the electric junction box 21 from the temporarily fixed state, the stopper portion 22
It is necessary to pull out a while lifting up a. Therefore, if you pull it out forcibly without removing it easily, the electric connection box 21
There is a problem that the bracket 26 may be deformed or damaged.

In view of the above circumstances, the invention of claim 1 provides a component mounting structure capable of increasing the positioning accuracy between the main fixing portions in the temporarily fixed state and improving the mounting workability. The purpose is to provide.

[0010] The invention of claim 1 is intended to provide a mounting structure for easy parts temporarily fixed engagement and removal.

A further object of the present invention is to provide a component mounting structure which enables work to be performed while visually confirming the engagement holes during temporary fastening and which can improve workability.

In addition to the object of the invention of claim 1 , it is an object of the invention of claim 2 to provide a mounting structure of parts having a good supporting balance at the time of temporary fixing and at the time of final fixing.

[0013]

According to a first aspect of the present invention, there is provided a mounting structure for a component, wherein a temporary fixing engagement projecting for temporary fixing engagement is provided.
Parts that have a projection and a screw hole for passing the main fixing screw
And the member to which the parts are attached and the object to be attached
Is fixed to a member and the temporary engagement engaging projection is inserted and engaged
The temporary engaging hole and the screw threaded hole
Bracket that has both a screw hole into which the main fixing screw is screwed
The temporary engagement engaging projection has a hook-shaped strut at the tip.
And a hook portion, and the temporary engaging hole is provided with the hook.
-Shaped stopper that allows the insertion and removal of the stopper, and the hook-shaped stopper
It has a locking wall that prevents the plug part from coming off.
The bracket projects from the attachment target member in a substantially horizontal direction.
The upper wall part that protrudes and bends downward from the tip of the upper wall part.
Side view shape consisting of a front wall part
The locking engagement hole is continuous from the front wall to the upper wall.
And the passage portion is arranged on the upper wall portion,
The locking wall is arranged on the front wall portion .

The invention of claim 2 is the bracket of claim 1.
However, it is characterized in that a plurality of parts are provided at intervals on the left and right of the part .

[0015]

[0016]

[0017]

[0018]

According to the first aspect of the invention, the screws are mounted on the same bracket.
Since a hole and a temporary fixing engagement hole are provided, it is temporarily fixed in the temporary fixing engagement hole.
Screws on the component side in the temporarily fixed state with the engaging projections engaged
The positioning accuracy of the through hole and the screw hole on the bracket side is improved. Also, temporarily stop the stopper part at the tip of the temporary engagement engagement protrusion.
Just insert from the passage of the engaging hole and lock on the locking wall
Thus, the temporary engagement can be performed. Also disengage
In that case, simply place the stopper in the passage and
The topper part can be pulled out from the engagement hole. In addition, temporary stop
The bracket from the front wall to the top wall of the bracket.
Since it was formed continuously, visually check the temporary locking hole from above
You can In addition, the passage part is provided on the upper wall part and the locking wall is on the front side.
Since it is placed on the wall, the temporary engagement engaging protrusion is
It suffices to hook it from above into the temporary engagement hole. In addition,
To remove it, just lift the temporary engagement engaging protrusion.
Yes.

According to the second aspect of the invention, the bracket is used as a component.
Since there are multiple left and right spaces, it's a good balance.
It can be fixed or fixed .

[0020]

[0021]

[0022]

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a state before attachment of an electric connection box (component) 21 in the attachment structure of the embodiment of the present invention, and FIG. 2 is a perspective view of the electric connection box 21 in a temporarily fixed state. In these figures, a temporary fixing projecting to the back side is provided on the left and right of the upper end of the vertically-arranged rectangular electric junction box 21.
The engaging protrusions 22 are fixed one by one. The temporary engagement engaging projection 22 is a hook-shaped stopper portion 22a whose tip is bent sideways.
It has a rectangular cross section. On the lower side of the temporary engagement engaging projections 22, screw through holes 23 are formed to pass through the main fixing screws 30 in the front-back direction.
The positional relationship between the screw through hole 23 and the temporary fixing engagement protrusion 22 is set to be common left and right. The electrical connection box 21 is also formed with screw holes 24 at its lower end.

On the other hand, two brackets 36 of the same kind are fixed to the vehicle body 25 as a member to be attached so as to correspond to the two sets of the temporary engagement engaging projections 22 and the screw through holes 23 on the electric connection box 21 side. At the same time, the bracket 28 is fixed so as to correspond to the screw through hole 24 at the lower end. The bracket 28 at the lower end has only the screw hole 32 as in the conventional example of FIG.

The bracket 36 at the upper end is used for the electric junction box 21.
Side temporary engagement engaging hole 38 that receives the temporary engagement engaging projection 22.
And a screw hole 39 into which the tip of the main fixing screw 30 passed through the screw through hole 23 on the electric connection box 21 side is screwed. These brackets 36 have an L-shaped side view.
The upper wall portion 3 that has a letter-like shape and projects substantially horizontally from the vehicle body 25
6a and a front wall portion 36b bent downward from the tip of the upper wall portion 36a.

Similar to the above-mentioned conventional example, the temporary fixing engagement hole 38 has a passage portion 38a which allows the hook-shaped stopper portion 22a of the temporary fixing engagement projection 22 to be inserted and removed, and a hook-shaped stopper portion 22a. those having a locking wall 38 b to prevent leakage, which is formed continuously from the front wall portion 36b toward the upper wall 36a, moreover passage portion 38a is disposed in the upper wall portion 36a, the locking wall 38b is arrange | positioned at the front wall part 36b.
In other words, the passing portion of the conventional temporary fixing engagement hole is further extended further to form a notch.

Next, the operation will be described. To attach the electric connection box 21 to the vehicle body 25, first, as shown by the chain double-dashed line in FIG.
To the upper side of the bracket 36 on the vehicle body 25 side and lower it. Then, the passing portion 3 of the temporary engagement hole 38
8a includes a stopper portion 22 at the tip of the temporary engagement engaging projection 22.
Insert a. Then, the stopper portion 22a is accommodated in the temporary fixing engagement hole 38, the stopper portion 22a is pulled out by the locking wall 38b, and the electric connection box 21 is positioned and temporarily fixed. After that, screw 30 to electrical junction box 2
1 through the screw holes 23 and 24, and the respective tips are screwed into the screw holes 39 of the bracket 36 and the screw holes 32 of the bracket 28, so that the electric connection box 21 is connected to the vehicle body 2
It can be fixed to 5.

In this case, since the temporary fixing engagement hole 38 and the screw hole 39 are both provided in the same bracket 36, the positional relationship between them can be accurately obtained, and the screw hole 3 in the temporarily fixed state can be obtained.
The positioning accuracy of the screw 9 and the screw-through hole 23 can be improved, and the mounting workability can be made extremely excellent. Also,
Since the temporary engagement engaging projections 22 are provided on both the left and right sides of the electric connection box 21 and are engaged with the brackets 36, respectively, the balance at the time of temporary fixing is improved. Further, since the screw through holes 23 are provided on both the left and right sides and the screw holes 39 of the bracket 36 are tightened, the support balance at the time of the main fixing is also improved.

When removing the electric junction box 21,
Remove the screw 30 and lift the electrical junction box 21 up. Then, the stopper portion 22a is pulled out from the passage portion 38a of the temporary fixing engagement hole 38, and the electric junction box 21 can be easily removed from the temporarily fixed state.

If the electrical junction box 21 is long horizontally,
Temporary locking engagement projection 22, screw through hole 23, and bracket 3
It is desirable to increase the number of 6 to support them in a well-balanced manner.

Further, the shapes of the temporary engagement engaging projections and the shapes of the temporary engagement engaging holes are not limited to the above examples, but can be variously changed. For example, if the workability is sacrificed to some extent, the clip 2 and the circular engagement hole 5 shown in the conventional example of FIG. 3 may be used. It is also possible to set the relationship between the temporary engaging engagement projection 22 and the temporary engaging engagement hole 38, and the relationship between the screw through hole 23 and the screw hole 39, respectively, in the opposite manner to the above embodiment. That is, it is possible to provide a temporary engagement engaging projection on the bracket side and provide a temporary engagement engagement hole on the electric connection box side, or a screw through hole on the bracket side and a screw hole on the electrical connection box side. It is possible.

In the above embodiment, the electric connection box is used as the component and the vehicle body is used as the member to be attached. However, other components may be used.

[0034]

As described above, according to the first aspect of the present invention, the positioning accuracy of the threaded hole on the component side and the screw hole on the bracket side in the temporarily fixed state can be improved.
Workability at the time of main fixing is improved by screwing. Well
In addition, the passage part that allows the stopper part to be inserted into and removed from the engagement hole and the
Since there is a locking wall to prevent the temporary engagement
And easy to remove. Furthermore, the engagement hole from above
Can be visually confirmed, and the temporary fixing projection can be
Temporary fixing can be done just by inserting, and temporary fixing workability
Can be improved. Also, when removing,
It is sufficient to remove the temporary engaging engagement protrusion, so you can forcefully remove it.
To deform or destroy parts or brackets
Will not be lost.

According to the second aspect of the present invention, the support variation of the parts
Improves your senses and prevents the generation of unreasonable power .

[0036]

[0037]

[0038]

[Brief description of drawings]

FIG. 1 is a perspective view showing a state before mounting components according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state of temporary fixing of an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a conventional example.

FIG. 4 is a perspective view showing a state before component attachment in another conventional example.

FIG. 5 is a side view showing a usage example of another conventional example.

[Explanation of symbols]

21 Electrical Junction Box (Component) 22 Temporary Fixing Engagement Protrusion 22a Stopper 23 Screw Through Hole 25 Car Body (Mounting Target Member) 30 Screw (Main Fixing Screw) 36 Bracket 36a Upper Wall 36b Front Wall 38 Temporary Fixing Engagement Hole 38a Passage portion 38b Locking wall 39 Screw hole

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiko Hori 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (56) Reference JP-A-2-39497 (JP, A) 100883 (JP, U) Actually open 59-74765 (JP, U) Actually open 64-40223 (JP, U) Actually open 64-64513 (JP, U) Actually open 4-47382 (JP, U) 59-135686 (JP, U) 193-1608 (JP, U) 5-62572 (JP, U) 5-5872 (58) Fields investigated (Int.Cl. ⁷ , DB name) H05K 5/00-5/06 B60R 16/02 H02G 3/08-3/20

Claims (2)

(57) [Claims] 1. A temporary fixing member projecting for temporary fixing engagement.
A part that has a threaded hole for passing the joint and the fixing screw.
Product, a mounting target member to which the above component is mounted, and the temporary fixing engagement protrusion fixed to this mounting target member
To be engaged and engaged with the temporary fixing engagement hole and the screw through hole.
Hold together with the screw hole into which the main fixing screw passed through is screwed
Two brackets, and the temporary engagement engaging projection is a tip.
It has a hook-shaped stopper on the
The hole includes a passage part that allows the hook-shaped stopper part to be inserted and removed, and a front part.
It also has a locking wall that prevents the hook-shaped stopper from coming off.
Therefore , the bracket is placed in a substantially horizontal direction from the attachment target member.
A protruding upper wall portion and a bending downward from the tip of the upper wall portion
The L-shaped side view is composed of
The temporary engagement hole is continuous from the front wall to the upper wall.
And the passage portion is disposed on the upper wall portion.
The fitting structure is characterized in that the locking wall is disposed on the front wall portion . 2. The bracket has a space on the left and right of the component.
The mounting structure for parts according to claim 1, wherein a plurality of them are provided .