KR970001738B1 - Mounting structure of a vehicle bumper - Google Patents

Abstract

When the stay(20) is combined to the body bracket(10), a location pin(25) is fixed in the pin hole(12), both bolt locking holes(11)(24) are locked together. The plug(22) of the stay(20) is inserted into the socket(31) of the impact beam(430), so the energy absorber(40) and the fascia(50) are connected with the stay(20). As the stay's(20) plug(22) is completely inserted in the socket(31) of the impact beam, the bolt holes(32)(23) of the impact beam(30) and that of the stay(20) are combined each other. A bolt(60) is inserted through the bolt holes(32)(33) and by locking it with a nut(61), the impact beam(430) and the stay(20) are completely connected.

Description

Bumper Mounting System of Vehicle

1 is an exploded perspective view showing the configuration of a conventional bumper mounting system.

Figure 2 is an exploded perspective view showing an embodiment of the bumper mounting system configuration of the present invention.

FIG. 3 is an enlarged cross sectional view illustrating the main part of the state in which the stay is coupled to the body bracket by a location pin in FIG.

Figure 4 is an enlarged horizontal cross-sectional view of the main portion illustrating the state in which the impact beam of the state in which the energy absorber and the facer are integrally assembled in the present invention is fastened to the stay attached to the body bracket.

* Explanation of symbols for main parts of the drawings

20: stay 22: inserter

23, 32: bolt hole 24: bolt fastener

25: location pin 30: impact pin

31: insertion groove 40: energy absorber

50: Pessier

The present invention relates to a front bumper installed to protect a body of a vehicle. More specifically, the parts such as an impact beam, an energy absorber, and a fascia, which constitute a bumper, can be easily and quickly assembled to a body. The present invention relates to a bumper mounting system of a vehicle capable of improving productivity and quality.

In general, a bumper is installed at the front and rear of the vehicle to protect the body. The bumper serves to protect the body from the impact when the vehicle hits an obstacle.

The bumper includes an energy sbsorbent bumber configured to prevent the car body from being damaged as much as possible by absorbing the urethane buffer material more effectively. In addition, there is a full bumper made integrally including an air pneumatic part or a part of a fender, and a mask bumper in which the bumper is integrally formed including a radiator grill or a part of a fender.

Among the bumpers, mask bumpers are mainly used in sports cars, and full bumpers are made of synthetic resins to make a large member having a complicated shape.

However, in general, an energy absorbing bumper using a shock absorbing material such as urethane, which has a good shock absorbing power, is mainly used in a passenger car, and the like, and the configuration thereof shows a bracket of the body A for bumper mounting as shown in FIG. 1) the plate-shaped stay (2) attached to the impact beam (3), the impact beam (3) attached to the stay (2), the energy absorber (4) assembled to the impact beam (3), parking bulb bulb and direction indicator bulb It is divided into the passers 5 which are installed.

However, the process of assembling the conventional energy absorbing bumper is described first by mounting only the bumper mounting stay 2 on the bracket 1 of the body A with bolts, and then the impact beam (on the surface of the stay 2). 3) assemble and bolt the energy absorber 4 to the surface of the impact beam 3 again, respectively, and finally, the assembled parts by assembling the passer 5 on the surface of the energy absorber 4. Too large a number of tolerance control was a difficult problem.

Therefore, in order to reduce the tolerance even a little, supply the line with the stay 2 attached to the impact beam 3 first, or the impact beam 3 and the energy absorber 4 first as shown in FIG. Combined and supplied to the line, which also reduces the tolerance of the assembly of the impact beam 3 and the stay 2 or only the tolerance of the assembly of the impact beam 3 and the energy absorber 4 in a narrow workspace. Many of the remaining parts must be assembled one after another, so it was not very helpful for tolerance adjustment.

In particular, even if you want to supply the line with more parts pre-assembled during the assembly work, it could not be carried out due to the structural problem that the mounting bolts of each part have to be tightened horizontally inside the bumper. As the assembly position is difficult to check at the same time, productivity decreases and quality problems occur. In particular, since the stay (2) and the impact beam (3) are supported only by bolts in the state of surface contact, the tightening force after assembly was not firm. All these problems are consequently leading to price increase and quality deterioration, which is becoming a serious problem that the international competitiveness as a automobile producing country is considerably deteriorated.

Accordingly, the present invention provides a bumper mounting system for a vehicle capable of assembling the assembly state of components more quickly and robustly while minimizing the assembly tolerance of each component in assembling the energy absorption bumper in view of the above-described conventional problems. There is a purpose.

In order to achieve the object of the present invention, first, assembling the impact beam, the energy absorber and the facer to reduce the assembly tolerance in the line as much as possible, but forming an insertion groove portion through which the bolt hole penetrates to the rear of the impact beam. Should protrude through the insertion part through which bolt hole penetrates the upper surface. In addition to the bolt fastening hole, the stay pin may be provided with a location pin to one side, and a body hole may have a pin hole corresponding to the location pin.

When the stay is formed as described above, when the stay is fastened to the body bracket, the location pin acts as a guide for the fastening hole, thereby supporting a part of the load that the stay is vertically, and thus improving the fastening force of the stay. When assembling the air absorber and the facer, the insertion groove is formed on the rear side of the impact beam assembly, and when the long bolt is fastened from the upper side to the lower side, the bumper mounting operation is completed. There is a number.

When described in more detail by the accompanying drawings of the technical configuration and effect of the present invention as an embodiment as follows.

2 is an exploded perspective view of the impact beam 30, the stay 20, and the body bracket 10 of the bumper mounting system according to the present invention. The impact beam 30 is integrated with the energy absorber 40 and the passer 50. Although assembled here (only the impact beam 30 is shown in the state in which the energy absorber 40 and the passive 50 are not combined for convenience), the long bolt 60 is fitted to the rear of the impact beam 30. The insertion hole 31 is formed so that the bolt hole 32 is penetrated so that the upper and lower bolt holes 32 remain exposed even when the energy absorber 40 and the passer 50 are integrally assembled. shall.

In addition, the front of the stay 20 is protruded so that the insertion portion 22 through which the bolt hole 23 penetrates up and down to be fitted into the insertion groove portion 31.

In addition, the contact plate 21 of the stay 20, the bolt fastening hole 24 is formed in three directions to install a location plate 25 in a predetermined portion and the location pin 25 in the corresponding portion of the body bracket 10 ) And the corresponding pin hole 12 is formed.

Wherein the location pin 25 is installed in the stay 20 is preferably installed in the remaining corner portion without the bolt fastening hole 24 as possible, reference numeral 11 in the figure is formed on the body bracket 10 Bolt fastener 61 is a long bolt 60 fastener nut.

In the present invention formed as described above, when the stay 20 is first fastened to the body bracket 10, as shown in FIG. 3, the location pin 25 is first inserted into the pin hole 12 of the body bracket 10. As a guide, the bolt fastening hole 24 of the stay 20 and the bolt fastening holes 11 of the body bracket 10 can be more easily fitted, so that the fastening operation of the stay 20 can be performed fairly quickly, while the body bracket Since the location pin 25 inserted into the pin hole 12 supports a part of the load received vertically by the stay 20 fastened to (10), the fastening force of the stay 20 is significantly improved.

In addition, when assembling the impact beam 430 in which the energy absorber 40 and the facer 50 are integrally coupled to the stay 20, the stay 20 is formed by using the insertion groove 31 formed on the rear side of the impact beam 30. When inserted into the inserting portion 22 of the) the inserting portion 22 and the inserting groove portion 31 is easily inserted because it is formed in a size and shape corresponding to each other.

In addition, when the impact 30 is fully inserted into the insertion portion 22 of the stay 20 by the insertion groove portion 31 as described above, the bolt hole 32 exposed on the upper surface of the impact beam 30 as shown in FIG. ) And the bolt hole 23 of the stay 20 is a natural match.

In this state, when the long bolt 60 is inserted into the bolt hole 32 from the upper surface of the impact beam 30 and tightened, the end of the long bolt 60 is coupled to the energy absorber 40 and the facer. Impact beam 30, which 50 is integrally coupled, is simply and quickly coupled to the stay 20.

In addition, the impact beam 30 and the stay 20 are fastened by being inserted into the inserting portion 22 of the stay 20 in the inserting groove portion 31 of the impact beam 30 as described above without being fastened in surface contact. Since the fastening force is to be kept quite firm compared to the prior art.

As described above, since the present invention supplies the energy absorber 40 and the passer 50 to the line in a state in which the impact beam 30 is integrally coupled to the line, it is possible to utilize a narrow assembly site more efficiently. Instead of assembling several parts individually, the impact beam consisting of one assembly can be simply assembled to the stay 20 fastened to the body. Therefore, the assembly tolerance of each part can be reduced as much as possible. As a result, it is a very used invention that can improve productivity and quality at the same time, thereby increasing the competitiveness abroad.

Claims (1)

The insertion hole 22 of the stay 20 through which the bolt hole 23 penetrates is inserted into the insertion groove portion 31 of the impact beam 30, and then the bolt hole 32 and the insertion portion of the matching insertion groove portion 31 ( In the case where the bolt holes 23 of the inserting part 22 of 22 are matched and fastened by the long bolt 60, the location pin 25 is formed in one edge of the four sides of the contact plate 21 of the stay 20. And install a bolt fastening hole 24 in the remaining corners, and a pin hole 12 is formed in a portion corresponding to the location pin 25 in the body bracket 10 which is in contact with this, and bolt fastening holes in the remaining three directions. Bumper mounting system of the vehicle, characterized in that to form a fast (11) to fasten the stay (20) to the body bracket (10) easily.