KR101788134B1

KR101788134B1 - Undercover rigid mounting structure for harsh endurance supplement satisfaction rating

Info

Publication number: KR101788134B1
Application number: KR1020150189403A
Authority: KR
Inventors: 김희웅
Original assignee: 한화첨단소재 주식회사
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-10-19
Also published as: KR20170079149A

Abstract

The present invention relates to a structure for compensating rigidity in an under cover mounting fixed to a vehicle body, A circular forming section recessed downward from an upper surface of the under cover mount section; A plurality of insertion holes formed at predetermined intervals along the inner wall of the circular forming portion; A fastening bolt fastening mounting hole formed through a bottom surface of the circular forming portion; A rigid complementary washer inserted into the round forming portion; A fastening hole formed through the rigid complementary washer; And a plurality of latching pieces formed along the periphery of the rigid complementary washer and fitted in the fitting hole. The undercover mounting rigidity complementary structure for satisfying a severe endurance evaluation is provided.

Description

TECHNICAL FIELD [0001] The present invention relates to an undercover rigid mounting structure for harsh endurance,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an under cover mounting structure, and more particularly, to an under cover mounting structure, in order to secure the rigidity of the under cover, And more particularly, to an undercover mounting rigidity supplement structure for satisfying an improved severe endurance evaluation.

BACKGROUND ART [0002] In general, an under cover of a vehicle protects various components provided at a lower portion of the vehicle body, reduces resistance to air at the time of traveling of the vehicle, blocks scattered products on the road surface, .

These under covers are normally mounted on the front bumper lower crossmember to improve the aerodynamic performance of the vehicle and to protect the interior parts of the engine compartment, thereby protecting the engine and chassis components from other foreign matter or protrusions on the ground while the vehicle is running, Smooth air flow at the bottom of the vehicle.

A number of patent technologies are disclosed as related undercover related technologies, such as Published Patent Application No. 2005-0024653 and Publication No. 2006-0003423.

For example, as illustrated in FIG. 1, the under cover 1, which is formed of a plurality of mounting holes 11 so as to be mounted on the lower portion of the vehicle, The sound absorbing portion 2 of a relatively soft and porous material for absorbing sound is fixedly mounted on the upper surface of the housing 2.

Then, the under cover 1 is fixed to the lower portion of the vehicle through the mounting hole 11.

2, the washer 33 is provided on the bottom surface of the mounting portion 22 which is the lower surface of the mounting hole 11, in order to secure the rigidity of the under cover 1, Respectively.

Since the washer 33 is coated and hardened on one side in order to attach the washer 33 to the mount 22, the washer 33 is softened by passing it through an oven at about 50-60 ° C, There is a disadvantage that the number of the assembled work is increased, the cost is increased, and the workability and work efficiency are inferior.

In addition, since the adhesive has a limitation in fixing ability, it is very troublesome and inconvenient because it is detached during use for a long time or the washer is detached when the under cover is detached and attached.

In order to solve this problem, fastening washers 100 as shown in Figs. 3 and 4 have been disclosed by the present applicant.

The fastening washer 100 shown in FIGS. 3 and 4 has a structure in which the fastening washer 100 according to FIGS. 3 and 4 has a structure in which, when the under cover covering the lower portion of the vehicle is fixed to the vehicle body, It is changed to a fixed type.

In order to do so, a mounting jaw 24 is formed on the upper surface of the mounting portion 22 so as to be concentric with the mounting hole 11 and slightly recessed by a predetermined radius, And a disk-shaped washer portion 110 which is in close contact with the lower surface of the mount portion 22. [

At this time, the washer portion 110 is formed in a circular plate shape having a larger diameter than the mounting hole 11, and a fastening hole H is formed at the center. The fastening hole H is a space in which a bolt, And a flange portion 120 having an inner diameter equal to the diameter of the fastening hole H is protruded from the washer portion 110. The flange portion 120 is a portion to be fitted in the mounting hole 11, And is formed to extend slightly longer than the thickness of the mounting hole 11 so as to be caught and fixed to the jaw 24. A jaw 130 is formed at the upper end of the flange portion 120 in a hook- The jaw 130 is a portion which is fixed to the mount portion 22 by firmly engaging the fastening washer 100 with the flange portion 120 by being caught by the mounting jaw 24 in a state where the flange portion 120 is fitted in the mounting hole 11 .

In particular, as shown in the illustrated example, if the jaws 130 are formed in a plurality of cut-out shapes spaced apart in the circumferential direction, the radius may be formed to be larger than the fastening holes H to be elastically fixed. That is, it is possible to secure a more rigid fixation property through the elastic fixation.

Nevertheless, in such a fastening washer 100 structure, when the washer is repeatedly fastened for maintenance, the washer is bent or broken by the bolt tightening torque.

In addition, if the fastening washer 100 is misaligned when fitting the fastening washer 100, there is a problem that the fastening washer 100 is caught in an oblique manner without being fully inserted.

Also, if the external impact is strong, a problem of crumbling or dislodging may occur.

As a result, the quality of the product deteriorates as well as the workability of the product, and the rigidity of the product is deteriorated, thereby necessitating improvement of the product.

Korean Patent Publication No. 10-2007-0059772 (Jun. 12, 2007), 'Vehicle Component Mounting Device' Korean Utility Model Publication No. 20-1998-0033744 (Sep. 10, 1998), 'Panel Hole Fixing Cap'

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a washer which does not bend or break even when an excessive torque is applied in the course of repeated tightening of a fastening washer However, the under cover mounting rigidity for satisfying the severe durability test that the quality of the product is improved by improving the structure so that the fastening washer is not easily released by external impact or other external force even after it is fitted, It has its main purpose in providing a complementary structure.

The present invention provides a means for achieving the above object, comprising: a circular forming section which is formed in a downward direction from an upper surface of an under cover mount to compensate rigidity when mounting an under cover fixed to a vehicle body; A plurality of insertion holes formed at predetermined intervals along the inner wall of the circular forming portion; A fastening bolt fastening mounting hole formed through a bottom surface of the circular forming portion; A rigid complementary washer inserted into the round forming portion; A fastening hole formed through the rigid complementary washer; And a plurality of latching members formed along the periphery of the rigid complementary washer and sandwiched between the fitting holes, the undercover mounting rigidifying structure comprising:
The lower end of the fitting hole is designed to coincide with the bottom surface of the circular forming portion;
A pair of rigid ribs integrally protruding from the engaging piece, the pair of rigid ribs being spaced apart in parallel with each other;
Wherein the fastening holes have the same size and shape as the fastening holes and fastened by fastening bolts. The present invention provides an undercover mounting rigidity complementary structure for satisfying a severe durability evaluation.

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According to the present invention, the washer does not bend or break even when the fastening washer is repeatedly fastened in order to repair the vehicle, and the fastening washer is prevented from being easily released by an external impact or other external force even after it is fitted. It is possible to improve the quality of the product by improving the structure, and to obtain the effect of securing ease of operation and original activity of the fastening operation.

1 is an exemplary view of a conventional under cover.
2 is an exemplary view showing an example of a conventional installation of a washer for under cover mounting.
Fig. 3 is an exemplary principal sectional view showing an example of installation of a conventional washer-mounting washer disclosed by the present applicant.
4 is a partial enlarged schematic view showing the model of the under cover mount of FIG.
5 is an exemplary view showing an undercover mounting rigidity supplement structure for satisfying severe endurance evaluation according to the present invention.
6 is a sectional view taken along line BB and line CC in Fig.
7 is an exemplary view for explaining an undercover mounting rigidity supplement structure for satisfying severe endurance evaluation according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIGS. 5 to 7, the under cover mounting rigidity supplementary structure for satisfying severe endurance evaluation according to the present invention includes a mount portion 220 and a rigid complementary washer 330.

At this time, the mount part 220 is formed with a circular forming part 200 formed to be recessed to a predetermined depth, and a mounting hole 210 is formed through the circular forming part 200 through the circular forming part 200.

In this case, the circular forming portion 200 is formed to be downwardly deformed from the upper surface of the mount portion 220 toward the downward direction. In the conventional structure, the washer is fitted from the lower portion to the upper portion of the mount portion 220, In the present invention, since the structure that is seated from the upper part to the lower part, that is, the structure is trapped inside the circular forming part 200, the washer is not pulled out or separated after the washer is installed.

This is a new concept that clearly distinguishes it from the prior art.

In addition, a plurality of insertion holes 230 are formed at regular intervals along the circumferential direction of the circular forming unit 200.

It is to be understood that the fitting hole 230 is formed on the peripheral wall of the circular forming portion 230 because the circular forming portion 200 has a rectangular shape with a predetermined width and has a depth.

Of course, the lower end of the fitting hole 230 should coincide with the sea surface of the circular forming unit 200.

The rigid complementary washer 330 has a thickness of a disk shape and has a central hole formed with a fastening hole 340 having a radius corresponding to the mounting hole 210, (Not shown).

At this time, the latching pieces 350 are formed in a size, shape and number corresponding to the fitting holes 230.

Preferably, four stiffening washers 330 are formed at intervals of 90 degrees along the periphery of the stiffening washer 330.

In addition, a pair of rigid ribs 352 may protrude in parallel on the upper surface of the latching piece 350 to improve the strength.

The rigid rib 352 is a kind of resistance rib that resists the resilient deformation of the retaining piece 350 even if it receives a large external force.

The reinforcing washer according to the present invention having such a constitution is mounted as follows.

First, the rigid complementary washer 330 is inserted into the mound portion 220 of the under cover before fixing the under cover to the vehicle body.

The rigid complementary washer 330 is inserted on the circular forming part 200 so that the respective locking pieces 350 protruding from the periphery of the rigid supplemental washer 330 are inserted into the inner surface of the circular forming part 200, And is inserted into each of the insertion holes 230 formed on the upper surface of the housing.

Then, the bottom surface of the rigid complementary washer 330 is brought into close contact with the bottom surface of the round forming unit 200, and at the same time, the engaging pieces 350 are inserted into the fitting holes 330.

Therefore, even when an external force is applied, the retaining pieces 350 are restrained by the insertion holes 230, and therefore, they can not rotate and are held in place.

In addition, even if some of the retaining pieces 350 are not completely inserted, the under cover is supported at the lower portion, so that there is no fear that the rigidity supplemental washer 330 will be detached or separated.

In other words, the rigid complementary washer 330 is positioned between the vehicle body and the under cover, so that an external force is directly applied to the lower portion of the under cover, So that the phenomenon that the washer is bent or broken does not occur.

This point is completely different from the conventional washer and is a characteristic feature of the present invention which can not be deduced from the conventional washer structure.

Since the rigid complementary washer 330 is fixed so as not to rotate in a restrained state even if it is loosened and tightened a plurality of times for maintenance, only the fastening bolt is loosened and tightened, thereby facilitating smooth, stable and convenient maintenance work.

200: round forming part 210: mounting hole
220: mount part 230:
330: rigidity complementary washer 340: fastening hole
350: engaging piece 352: rigid rib

Claims

A circular forming section that is formed by being recessed downward from the upper surface of the under cover mount to compensate the rigidity when the under cover is fixed to the vehicle body; A plurality of insertion holes formed at predetermined intervals along the inner wall of the circular forming portion; A fastening bolt fastening mounting hole formed through a bottom surface of the circular forming portion; A rigid complementary washer inserted into the round forming portion; A fastening hole formed through the rigid complementary washer; And a plurality of latching members formed along the periphery of the rigid complementary washer and sandwiched between the fitting holes, the undercover mounting rigidifying structure comprising:
The lower end of the fitting hole is designed to coincide with the bottom surface of the circular forming portion;
A pair of rigid ribs integrally protruding from the engaging piece, the pair of rigid ribs being spaced apart in parallel with each other;
Wherein the fastening holes have the same size and shape as the fastening holes and fastened by fastening bolts. The undercover mounting rigidity supplement structure for satisfying severe endurance evaluation.

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