JPH03213705A - Parts fixing method - Google Patents

Abstract

PURPOSE:To simplify part control and reduce cost by adjoining the surface of another side of a third part to the fixed nut of a first part and matching the nuts of both parts, and inserting a shoulder bolt from the side of a second part to threadedly engage with the fixed nut of the third part when fixing the third part fixed on the surface of one side to first and second parts. CONSTITUTION:When the mounting bracket 7 of a third part is fixed to a radiator support panel 1 and a grill bracket 3, the bracket 3 is laid adjacent to the surface 1b of another side of the panel 1, and the mounting holes 4, 6 of both parts are matched, and at the same, the surface 7b of another side of the bracket 7 is laid adjacent to the nut 5 of the panel 1, and screw holes of respective nuts 5, 8 of both parts 1, 7 are matched. Then, a shoulder nut 20 whereon a male screw 20a is provided only at the side of a top end is inserted from the side of the bracket 3 and threadedly engages only with the fixed nut 8 of the bracket 7, and three parts 3, 1, 7 are integrally fixed by tightening together. In such a way, the nut 5 remained fixed to the panel 1 with three parts are assembled together, making the control of part easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a component fixing method for fixing a plurality of components with bolts.

[Conventional technology]

FIG. 6 shows a conventional general method of fixing two parts with bolts. Here, it is assumed that the first part is a radiator support panel 1 which is a part of the car body, and the second part is fixed to this with bolts 2.
It is assumed that the component is a grille bracket 3 for attaching a grille provided at the front of the vehicle body. A mounting hole 4 is formed in the radiator support panel 1, and a nut 5 aligned with the hole 4 is fixed to one side 1a of the panel 1 by, for example, welding. A mounting hole 6 is also drilled in advance in the grille bracket 3, which is the second component.

To fix the above two parts, namely the radiator support panel 1 and the grille bracket 3, first attach the grille bracket 3 to the other side of the radiator support panel 1 (the side opposite to the side to which the nuts 5 are fixed) lb and align the mounting holes 4 and 6 of both parts with each other, then insert the bolt 2 into the mounting hole 6 from the side of the grille bracket 3, and tighten it with the internal thread formed in the threaded hole of the nut 5. and tighten the bolt 2 to fix both parts 1.3 together. Since the nuts 5 are fixed to the radiator support panel 1 in advance in this way, the panel 1 and the grill bracket 3 can be easily fixed by simply screwing the bolts 2 onto the nuts 5.

Incidentally, not only automobiles but also various products are generally equipped with optional parts in response to user requests.

Taking a car as an example, the inclination of the car body is slightly different when it is loaded with a large amount of luggage and when it is not loaded, so the installation condition of the headlights is automatically adjusted according to this inclination. Depending on the destination, a headlamp leveling device that can maintain a constant light irradiation angle with respect to the road surface can be added.

When installing an additional device as described above, this device is fixed to the vehicle body together with other parts. Figure 6 shows the situation when no additional equipment is installed, but when adding this, tighten the nut 5 shown in Figure 6 to the radiator support panel 1 as shown in Figure 7. Instead, attach the nut 8 to the third part, the mounting bracket 7 for additional equipment.
are fixed by welding etc. in advance, and then attach the grille bracket 3, radiator support panel 1 and mounting bracket 7.
Align the mounting holes 6 and 4°9 formed in these with the screw holes of the nuts 8, and then attach the grille bracket 3.
Insert the bolt 2 from the side, screw it into the nut 8, and tighten it to integrate the three parts 1, 3 and 7.

In this way, there is no need to provide independent mounting holes in the radiator support panel 1 or the grille bracket 3 for mounting additional devices, and the structure and its assembly work can be simplified.

[Problem to be solved by the invention]

However, depending on the specification of whether additional equipment is to be assembled or not, it is necessary to fix the nut 5 to the radiator support panel 1 or not to fix it, so it is difficult to manage the parts. becomes very complicated and its cost increases. Such defects are not limited to the radiator support panel, but also apply to other parts.

An object of the present invention is to provide a component fixing method that eliminates the above-mentioned conventional drawbacks.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention includes a first component having a mounting hole formed therein and a nut fixed to one surface so as to align with the hole, and a second component having the mounting hole. When fixing, place the second part adjacent to the other side of the first part, align the mounting holes of both parts, insert a bolt into the mounting hole from the second part side, and tighten the bolt. The nut is screwed onto the nut to fix both parts, and the nut is fixed to one side so that a mounting hole is formed and a nut having a threaded hole diameter smaller than the threaded hole diameter of the nut is aligned with the mounting hole. When fixing the third component that has been removed together with the first and second components, the second component is placed adjacent to the other surface of the first component, and the mounting holes of both components are aligned. At the same time, the other surface of the third part is adjacent to the nut fixed to the first part, and the screw holes of the nuts of both parts are aligned, and the nut fixed to the third part is screwed. However, a stepped bolt that does not screw into the nut fixed to the first part is inserted into the mounting hole from the second part side, and the bolt is inserted only into the nut fixed to the third part. We propose a component fixing method characterized by fixing a first, second, and third component together by screwing them together.

Further, in order to achieve the same object, the present invention includes a first part having a mounting hole formed therein and a nut fixed to one surface so as to align with the hole, and a second part having the mounting hole. When fixing the second part, place the second part adjacent to the other side of the first part, align the mounting holes of both parts, insert a bolt into the mounting hole from the second part side, and tighten the bolt. is screwed onto the nut to fix both parts, and a third part having a mounting hole whose peripheral edge engages with the thread groove,
When fixing the first and second parts together, the second part is placed adjacent to the other surface of the first part, and the mounting holes of both parts are aligned, and the third part is fixed to the second part. 1
Install a tapered bolt with a tapered tip from the side of the second component, adjacent to the nut fixed to the second component, and aligning the screw hole of the nut with the mounting hole of the third component. The bolt is inserted into the hole, and the bolt is not screwed into the nut, but is screwed into the periphery of the mounting hole of the third component, and the first and second parts are screwed together.
We propose a component fixing method characterized by fixing a third component and a third component together.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 and 2 show a first embodiment corresponding to claim 1 of the present invention. Fig. 1 shows the situation when the radiator support panel 1, which is an example of the first part, and the grille bracket 3, which is an example of the second part, are fixed, and Fig. 3 shows a situation in which a mounting bracket 7 for an additional device, which is an example of part 3, is fixed.

When fixing only the radiator support panel 1 and grille bracket 3 as shown in Fig. 1, the fixing method is shown in the 6th method.
This is exactly the same as the conventional example shown in the figure. That is, when fixing the radiator support panel 1 in which the mounting holes 4 are formed and the nuts 5 are fixed to one surface 1a so as to align with the holes 4, and the grille bracket 3 having the mounting holes 6, Attach the grille bracket 3 to the other side 1b of the radiator support panel 1 opposite to the side to which the nut 5 is fixed.
and align the mounting holes 4° and 6 of both parts 1 and 3, insert the bolt 2 into the mounting hole 6 from behind the grille bracket 3, screw the bolt 2 into the nut 5, and tighten. Fix both parts 1 and 3.

Next, as shown in FIG. 2, when fixing the mounting bracket 7, which is the third component, together with the radiator support panel 1 and the grille bracket 3, the following operation is performed.

A mounting hole 9 is also formed in the mounting bracket 7 in advance, and one surface 7a of the bracket 7 is aligned with the mounting hole 9.
Nut 8 is fixed to. A nut 5 is also attached to one side 1a of the radiator support panel 1 as in the case of FIG.
remains fixed. At this time, the diameter of the screw hole of the nut 8 fixed to the mounting bracket 7 is set smaller than the diameter of the screw hole of the nut 5.

First, place the grille bracket 3 adjacent to the other side 1b of the radiator support panel 1, and attach the mounting hole 4 of both parts 1°3.
, 6 are aligned. At the same time, the other side 7b of the mounting bracket 7 opposite to the side to which the nut 8 is fixed is placed adjacent to the slot 5 of the radiator support panel l, and both parts 1
, 7, align the screw holes of nuts 5 and 8.

Next, a male thread 20a is formed only on the tip side so that it is screwed into the nut 8 of the mounting bracket 7, but not into the nut 5 of the radiator support panel 1, and a male thread 20a is formed on the base side 20b. Stepped bolt 2 with no
Prepare 0. The root portion 20b of this bolt 20 has a larger diameter than the male threaded portion 20a at the tip. Then, insert this bolt 20 into the mounting hole 6 from the side of the grille bracket 3, screw this bolt 20 only into the nut 8 fixed to the mounting bracket 7, as shown in FIG. 2, and tighten it. Fix the three parts 3, 1.7 together. At this time, the shoulder bolt 20 is not screwed into the nut 5 of the radiator support panel 1, so just by tightening this bolt 2o, the three parts 3, 1.7 can be joined in a state in which they are tightly attached to each other. can.

According to the above configuration, the nuts 5 necessary for assembling the two parts of the radiator support panel 1 and the grille bracket 3 are
However, when the mounting bracket 7 is assembled, it is fixed to the radiator support panel 1 as it is, but the nut 5 does not get in the way when the three parts 1, 3.7 are assembled. That is, when assembling two parts 1 and 3 as shown in FIG. 1, and when assembling three parts 1 and 3.7 as shown in FIG.
Therefore, it is not necessary to fix the nut 5 to the panel 1 or not to fix it depending on the difference in specifications, and the management of one part becomes very easy.

3 and 4 show a second embodiment corresponding to claim 2. FIG. FIG. 3 shows a state in which the radiator support panel 1 and the grille bracket 3 are fixed, and since the structure and the method of fixing both parts are exactly the same as in FIG. 1, the explanation thereof will be omitted.

The operation for fixing the mounting bracket 7 in addition to the radiator support panel 1 and the grille bracket 3 is as follows.

A nut is not fixed to the mounting bracket 7 as in the first embodiment, and instead, the mounting hole 9 drilled in this bracket 7 has a countersunk as shown in FIGS. 4 and 5. The mounting hole 9 is formed at the bottom of the recessed portion, and is configured so that the peripheral edge 21 of the mounting hole 9 can be engaged with a threaded groove. Also in this example, the nut 5 remains fixed to one surface 1a of the radiator support panel 1, which is the first component.

To operate, first, place the grille bracket 3, which is the second part, adjacent to the other surface of the radiator support panel 1, that is, the surface 1b opposite to the side to which the nut 5 is fixed.
Align the mounting holes 4° and 6 of both parts 1 and 3. At the same time the third
A mounting bracket 7, which is a part of the mounting bracket 7, is placed adjacent to a nut 5 fixed to the radiator support panel 1, and the screw hole of the nut 5 and the mounting hole 9 of the mounting bracket 7 are aligned. Next, taper bolt 3 with a tapered tip.
0 into the mounting hole 6 of the grille bracket 3 from the side, and this bolt 30 is not screwed into the nut 5, but into the mounting hole periphery 21 of the mounting bracket 7, and the bolt 30 is tightened. to fix the three parts 3, 1.7 together.

Even in the above configuration, when the bolt 30 is tightened, it is not screwed into the nut 5, but only into the peripheral edge 21 of the mounting hole 9, so that the three parts 1 and 3°7 can be fixed in close contact with each other. .

In the case of the second embodiment described above, there are also three parts l.

3.7, the nut 5 remains fixed to the radiator support panel 1, but this does not interfere with the fixing operation of the parts.

Therefore, depending on the difference in specifications, there is no need to prepare a panel 1 without nuts 5 and a panel 1 with nuts 5 fixed.
Nuts 5 can be fixed to all radiator support panels 1.

As mentioned above, examples of parts include radiator support panel,
Although a grill bracket and a mounting bracket are shown, the present invention can also be applied to methods of fixing various other parts. There is no need to fix the nut to the first part or not depending on the situation, and it is possible to fix the nut uniformly to all the first parts, making it easier to manage the parts. can be simplified, and as a result, the cost can be reduced.

[Brief explanation of drawings]

Figure 1 is a sectional view when the first and second parts are fixed, Figure 2 is a sectional view when the first, second and third parts are fixed, Figures 3 and 4. shows another embodiment, the first
5 is a perspective view showing the mounting holes formed in the mounting bracket, FIGS. 6 and 7 are sectional views similar to those shown in FIGS. FIG. 2 is a cross-sectional view similar to FIG. 2;

Claims (1)

[Claims] (1) When fixing a first component having a mounting hole formed therein and a nut fixed to one side so as to align with the hole, and a second component having the mounting hole, the second component parts first
adjacent to the other surface of the second part, and aligning the mounting holes of both parts, inserting a bolt into the mounting hole from the side of the second part, and screwing the bolt into the nut to fix both parts. and a third part fixed to one surface of the first part such that a nut having a mounting hole formed therein and having a threaded hole diameter smaller than the threaded hole diameter of the nut is aligned with the mounting hole. and when fixing together with a second component, place the second component adjacent to the other surface of the first component, align the mounting holes of both components, and fix the other surface of the third component. , adjacent to the nut fixed to the first part and aligned with the screw holes of the nuts of both parts, screwed into the nut fixed to the third part, but not fixed to the first part. A stepped bolt that does not screw into the nut is inserted into the mounting hole from the second component side, and the bolt is screwed only into the nut fixed to the third component, and the first, second, and second components are screwed together. 3. A component fixing method characterized by fixing the components of 3 together. (2) A first component having a mounting hole formed therein and a nut fixed to one side so as to align with the hole, and a second component having the mounting hole.
When fixing the second part to the other part, place the second part adjacent to the other side of the first part, align the mounting holes of both parts, and insert the bolt into the mounting hole from the second part side. , fixing both parts by screwing the bolt into the nut, and a third part having a mounting hole whose peripheral edge engages with the thread groove;
When fixing the first and second parts together, the second part is placed adjacent to the other surface of the first part, and the mounting holes of both parts are aligned, and the third part is fixed to the second part. 1
Installing a tapered bolt with a tapered tip from the side of the second component, adjacent to the nut fixed to the second component, and aligning the threaded hole of the nut with the mounting hole of the third component. The bolt is inserted into the hole, and the bolt is not screwed into the nut, but is screwed into the periphery of the mounting hole of the third component, and the first and second parts are screwed together.
A component fixing method characterized by fixing a third component together.