KR102404896B1 - Fmh plate mounted on headliner of vehicles - Google Patents

Abstract

According to the present invention, by forcibly inserting or attaching a ladder-shaped shock absorbing member to the base, even if the gap between the roof panel and the headliner is different, the shock absorbing member is installed to suit it, and the shock absorption can be achieved while being broken in turn by an external shock. This allows you to get enough FMH injuries to protect your head. In particular, the present invention injects the shock absorbing member in the form of a long member, so that even if the gap between the headliner and the roof panel is different depending on the car model, the shock absorbing member cut according to it is mounted on the base, so it can be used universally regardless of the car model. have. In addition, according to the present invention, a notch is formed in the base so that it can be closely attached to the surface of the headliner, and a through hole is formed in one side of the base, so that the shock absorbing member can be easily and conveniently assembled and used.

Description

FMH PLATE MOUNTED ON HEADLINER OF VEHICLES

The present invention relates to an FMH plate, and more particularly, to an FMH plate by mounting a shock absorbing member connected to at least one connecting bar between two bars to a base to form an FMH plate, thereby absorbing shock according to the gap between a roof panel and a headliner It is possible to use by attaching different lengths of members. In particular, the shock absorbing member is manufactured in the form of a length member, cut to an appropriate length in consideration of the gap between the headliner and the roof panel, and configured to be attached to the headliner, thereby eliminating the need to separately manufacture the FMH play depending on the vehicle model. It was made for general use.

In general, a free motion head-form (FMH) plate 1 is mounted on the head liner H facing the roof panel R, as shown in FIG. 1 . The FMH plate is manufactured in accordance with the automobile interior parts regulations that evaluate the safety of passengers in order to protect the head from the impact applied when the head of an occupant collides with the headliner due to an automobile accident. Accordingly, the FMH plate is manufactured in various forms to satisfy the relevant laws, as in the following (Patent Document 1) to (Patent Document 3).

(Patent Document 1) Korean Patent Publication No. 10-2019-0016152

An elastic piece is protruded on the FMH (Free Motion Head-foam) plate in advance, the FMH plate is mounted on the headliner, and the wire can be inserted or folded through this elastic piece to fix it. An object of the present invention is to provide an FMH plate for automobiles that not only does not require a fixture, but also allows the wire to be fixed without using a fixture or adhesive, so that the wire can be easily and quickly fixed.

(Patent Document 2) Korean Patent Laid-Open No. 10-2018-0049833

By forming a mounting hole so that one side can be fixed together with the auxiliary handle, and using the plate to extend the other side along the face of the head lining to its edge, it is not only easy to manufacture, but also It can be easily deformed according to the impact and absorb the impact to increase safety. In particular, since several ribs can be manufactured and used at a predetermined interval, thickness, and height on the body, ribs can be manufactured and used in an appropriate size according to different impact performance requirements depending on the vehicle model. And since these plates are manufactured by injection molding, they can be manufactured and used easily, conveniently, and inexpensively even if the structure is complex.

(Patent Document 3) Korean Patent Publication No. 10-2020-0028529

When installing the FMH rib on the surface of the headliner facing the roof panel, the ultrasonic welding method is adopted, so the FMH rib can be installed accurately and quickly in a fixed position, and the FMH rib, which can be mounted firmly to increase the quality, is used for automobiles. An object of the present invention is to provide a method for welding a headliner and a headliner for automobiles having FMH ribs. In particular, since no adhesive is used when the FMH rib is mounted on the headliner, a method for welding the FMH rib to an automobile headliner and FMH, which eliminates problems that may occur with the use of adhesive in advance to create a comfortable working environment Another object is to provide a headliner for automobiles with ribs.

On the other hand, the FMH play 10 is mainly manufactured in the form of a cone body 11, as in [FIG. 1] and [FIG. 2]. The cone body 11 is formed in the shape of a conical column, and as the occupant's head (DUMMY HEAD) collides with the headliner due to an automobile accident, the cone body 11 deforms and absorbs the shock.

However, the conventional FMH plate has the following problems.

(1) As the FMH play is attached to the surface facing the roof panel, the cone body formed on the FMH plate protrudes between the roof panel and the head liner and absorbs the impact when the head liner is impacted to protect the driver and passengers. protect the head

(2) Accordingly, the cone body should be manufactured with different protrusion heights according to the gap between the roof panel and the head liner.

(3) This is because the distance between the roof panel and the headliner is different depending on the car model, so an FMH play with a cone body with a different height for each car model must be separately produced. This acts as one factor that makes the FMH plate unusable for general use.

(4) In addition, since each cone body absorbs shock by deformation of the protruding portion facing the roof panel due to external force applied from the headliner, not only does the shock absorption not work smoothly, but also the shock is more than a certain level. If this is not applied, the cone body is not easily deformed and the impact absorption effect is reduced.

Korea Patent Publication No. 10-2019-0016152 (published date: 2019.02.18) Korea Patent Publication No. 10-2018-0049833 (published on: May 14, 2018) Korea Patent Publication No. 10-2020-0028529 (published date: March 17, 2020)

The present invention has taken this point into consideration, and the gap between the roof panel and the headliner is reduced by forcibly inserting or attaching a shock absorbing member made in the form of a ladder connected to at least one connecting bar between two bars to the base. Even if it is different, it is installed on the headliner for automobiles that allows sufficient FMH injury value (HIC(d)) to be obtained to protect the head by installing shock absorbing members to absorb shocks by breaking in turn by external shocks. An object of the present invention is to provide an FMH plate.

In particular, according to the present invention, since the shock absorbing member is manufactured by long injection molding in the form of a length member, even if the gap between the headliner and the roof panel is different depending on the car model, the shock absorbing member cut according to this can be mounted on the base, so the car model or design change It is another object of the present invention to provide an FMH plate mounted on a headliner for an automobile that can be used universally regardless of the type of vehicle.

In addition, in the present invention, at least two notches are formed in the base to increase adhesion by closely adhering to the curved surface of the headliner, and a through hole is formed on one side for mounting the shock absorbing member to mount the shock absorbing member. Another object of the present invention is to provide an FMH plate that is mounted on a headliner for an automobile, which allows for easy and convenient assembly and use.

In order to achieve this object, the FMH plate mounted on the headliner for a vehicle according to the present invention is a vehicle FMH plate mounted on the headliner (H) side facing the roof panel, which is attached to the headliner (H) side. base 100; and at least one shock absorbing member 200 configured to be installed by forcibly fitted or attached to the base 100, and connected to at least one connecting bar between the two bars.

In particular, the base 100 is characterized in that at least two notches 110 are formed in the longitudinal direction.

In addition, at least one mounting hole 120 made of a pair is formed through the base 100 so that the shock absorbing member 200 can be forcibly inserted thereinto.

Lastly, the shock absorbing member 200 is cut to a length suitable for the spacing (G, G') between the headliner (H) and the roof panel (R) and is configured to be mounted on the base (100). .

The FMH plate mounted on the headliner for a vehicle according to the present invention has the following effects.

(1) By connecting at least one connecting bar between two bars to the base and mounting a shock absorbing member in the form of a ladder as a whole, the FMH plate is manufactured. can be easily crafted.

(2) Therefore, the FMH plate according to the present invention can be used for general purpose because the FMH plate can be manufactured according to the FMH injury value required according to the vehicle model. This can reduce the manufacturing process of the FMH plate, its cost, and design change cost because only the length of the shock absorbing member needs to be adjusted according to the different car model or the design is changed in one car model.

(3) In particular, the shock absorbing member is made to be long in the form of a ladder-shaped length member so that it can be cut to a desired length and used. You can use it by making an FMH plate.

(4) In addition, such a ladder-shaped shock absorbing member causes stress concentration to occur in several shock absorbing members installed sporadically when an impact is applied to the headliner, and the ladder shape is broken in turn by brittleness to distribute the stress This can increase the impact absorption effect.

(5) On the other hand, by forming at least two notches in the longitudinal direction in the base on which the shock absorbing member is installed, the base closely adheres to the face of the headliner manufactured in a complex three-dimensional shape, thereby enhancing the adhesion effect and firmly attaching it can do.

(6) Finally, the shock absorbing member is configured to be assembled by forcibly inserted into the mounting hole formed through the base, so that anyone can easily and conveniently mount it, and it is possible to increase the shock absorption efficiency while assembling it quickly.

[FIG. 1] is a side view of a vehicle showing a conventional FMH plate installed on a headliner surface facing the roof panel.
[Figure 2] is a view showing the shape of a cone body formed on a conventional FMH plate, (a) is a perspective view, (b) is a side view.
[Figure 3] is a perspective view showing a position in which the FMH plate according to the present invention is mounted on the headliner.
[Figure 4] is a view showing the structure of the FMH plate according to the present invention, (a) is a perspective view, (b) is a front view.
[FIG. 5] is a perspective view showing a separated state to mount a ladder-shaped shock absorbing member on the base according to the present invention.
[Figure 6] is a side view showing a state in which the FMH plate according to the present invention is mounted on the headliner to face the roof panel.
[Fig. 7] is a graph showing the FMH injury value (HIC(d)) according to time change of the FMH plate (Example) according to the present invention and the FMH plate (Comparative Example) made of the conventional cone body type.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. According to the principle that can be, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

[ FMH plate structure]

The FMH plate mounted on the headliner for a vehicle according to the present invention includes a base 100 and a shock absorbing member 200 as shown in FIGS. 3 to 7 .

In particular, the shock absorbing member 200 is manufactured to have a ladder shape as a whole by connecting at least one connecting bar between the two bars, so that it can be manufactured to an appropriate size according to the interval between the headliner (H) and the roof panel (R). It is possible to use the FMH plate according to the present invention for general purpose.

On the other hand, since at least two notches 110 are formed in the base 100 in the longitudinal direction, when the base 100 is mounted on the headliner H, it can adhere to the complex three-dimensional shape of the headliner H. This allows it to be easily and conveniently attached to any headliner (H) surface.

In addition, the base 100 has a plurality of mounting holes 120 formed through it, so that the shock absorbing member 200 can be forcibly inserted and assembled to increase assembly efficiency while increasing the assembly efficiency (HIC (d) ) to make it safe to use.

Hereinafter, such a configuration will be described in more detail with reference to the accompanying drawings. Here, reference numeral "H" denotes a headliner, which is a finishing material mounted on the interior ceiling of a vehicle, and "R" denotes a roof panel of the vehicle facing the headliner.

go. Base

The base 100 is mounted on the surface of the headliner (H) facing the roof panel (R) as shown in [Fig. 3] to [Fig. 6]. In this case, the base 100 may be attached using an adhesive or the like, or may be mounted on the surface of the headliner H by a method such as thermoforming.

In particular, in the base 100, at least two notches 110 that can be easily mounted on the headliner H, as shown in FIGS. 4 to 6 , and several shock absorbing members to be described later. A plurality of mounting holes 120 for mounting the 200 are formed through.

One. notch

The notches 110 are mounted by forming at least two notch 110 in the longitudinal direction of the base 100 as shown in FIGS. 4 and 5 , thereby attaching the base 100 to the headliner H surface. When doing so, the adhesion area between the base 100 and the headliner H is increased to increase the mounting force.

This notch 110, as in [Fig. 4] and [Fig. 5], the base 100 made of a planar shape can be bent around the notch 110 part, so that even on the complicated surface of the headliner H Make sure it is well attached and attached. Accordingly, as the notch 110 is formed as much as possible, the interval between two adjacent notches 110 is narrowed, so that the base 100 can be attached in a form similar to the complex headliner H. desirable. In the drawing, the notches 110 show an example in which three are formed side by side.

In addition, although not shown in the drawing, the notch 110 is formed in a grid shape on the surface of the base 100 through the same effect as when each grid is attached to the headliner (H) surface, which is a complex three-dimensional shape. It is more preferable to configure the base 100 to be more closely adhered to the headliner H.

2. Mounting hole

A plurality of mounting holes 120 are formed on the surface of the base 100 described above, as shown in FIG. 5 . At this time, the mounting hole 120 is a hole for allowing both ends of the shock absorbing member 200 to be described later to be fitted or attached to the mounting hole 120 , so it is preferable to form a pair through it, and the shock absorption to be described later to be mounted on the base 100 . Several are formed in pairs according to the number of members 200 .

In particular, in a preferred embodiment of the present invention, the mounting hole 120 is formed to a size that can be assembled by forcibly inserting a shock absorbing member 200 to be described later, as shown in Figs. 4 and 5, It is preferable to configure the mounting hole 1200 so that it can be easily and conveniently assembled without extra effort for installing the shock absorbing member 200 in the mounting hole 1200. Of course, between the mounting hole 120 and the shock absorbing member 200 After applying an adhesive or the like, the shock absorbing member 200 may be forcibly inserted into the mounting hole 120 to be more firmly fixed.

In addition, in a preferred embodiment of the present invention, the mounting hole 120, as shown in [Fig. 3] to [Fig. 6], a square grid shape on the surface of the base 100, preferably an impact to be described later at the vertices of the grid The ends of the absorbing member 200 are fitted so that they can be assembled, so that a plurality of shock absorbing members 200 are arranged side by side in at least one or two rows to increase the impact absorbing effect, and also a shock absorbing member to be described later (200) is selected to be assembled in the mounting hole 120 at an appropriate position.

In the mounting hole 120 made in this way, as shown in [Fig. 3] to [Fig. 6], the shock absorbing member 200 is mounted.

me. shock absorbing member

The shock absorbing member 200 is formed in a ladder shape as a whole by connecting at least one connecting bar between two bars, as shown in FIGS. 3 to 6 . In addition, one side of the shock absorbing member 200 is fixedly installed by being fitted into the above-described mounting hole 120 , and the other side is installed to face the roof panel R and protrude outward.

In particular, when an impact is applied to the shock absorbing member 200 in the form of a ladder toward the headliner H in the vehicle interior, as shown in [Fig. 6], stress concentration occurs in the connecting portion constituting the ladder shape. And, the shock absorbing member 200 is broken due to brittleness due to this, and the external force is distributed to protect the head.

On the other hand, in a preferred embodiment of the present invention, the shock absorbing member 200 is preferably manufactured in the form of a long member in the shape of a ladder using a method such as injection. As shown in [Fig. 6], as the roof panel R is equipped with a part covered by the head liner H, such as a cross bar or an electrical device mounted on the head liner, the roof panel R and the head liner H ) and the spacing between them is not constant. Accordingly, in the present invention, the shock absorbing member 200 made in the form of a long member can be cut and assembled according to the different distances (G, G') between the headliner (H) and the roof panel (R). Due to this difference, even if the spacing between the headliner (H) and the roof panel (R) is different or the spacing is changed as a design change is made in one vehicle model, regardless of this, the shock absorbing member 200 according to the present invention is universally used. to make it available

The result of measuring the FMH injury value (HIC(d)) according to time change of the FMH plate (Example) according to the present invention made in this way and the conventional FMH plate (Comparative Example) having the conventional cone body shape is shown in the [Fig. 7]. In FIG. 7 , the horizontal axis represents time, the vertical axis represents Resultant Accel, the red line represents the Example, and the blue line represents the comparative example. The deceleration graph at this time was measured according to FMVSS201U, which measures the HIC (d) by measuring the acceleration when the dummy of the head model is fired toward the headliner at a speed of 24 km/h. As a result, the FMH injury value of the example is 689HIC(d), the FMH injury value of the comparative example is 898HIC(d), and all of them meet the laws and regulations below 1,000HIC(d), but it can be seen that the Example is safer than the comparative example.

100: base
110: notch
120: mounting hole
200: shock absorbing member

Claims (4)

In the FMH plate for automobiles mounted on the side of the headliner (H) facing the roof panel,
a base 100 attached to the headliner (H) surface; and
At least one shock absorbing member 200 configured to be installed by forcibly fitted or attached to the base 100, and connected to at least one connecting bar between the two bars; is included,
In the base 100,
An FMH plate mounted on a headliner for a vehicle, characterized in that at least two notches (110) are formed in the longitudinal direction.
delete In claim 1,
In the base 100,
An FMH plate mounted on a headliner for a vehicle, characterized in that at least one pair of mounting holes (120) are formed therethrough so that the shock absorbing member (200) can be forcibly inserted thereinto.
In claim 1 or 3,
The shock absorbing member 200,
An FMH plate mounted on a headliner for a vehicle, characterized in that it is cut to a length suitable for the spacing (G, G') between the headliner (H) and the roof panel (R) and mounted on the base (100).

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