JP2584489Y2 - Strut tower - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a strut tower.

[0002]

2. Description of the Related Art A strut tower in an engine room of a vehicle body B shown in FIG. 9 has, for example, a structure as shown in FIG. In FIG. 1, reference numeral 1 denotes a hood ridge panel. A hood ridge reinforcement 2 is attached to an upper edge of the hood ridge panel 1, and a side member 3 is attached to a lower edge of the hood ridge panel 1.
The strut tower 4 is attached to a portion extending from the hood ridge reinforcement 2 to the attachment portion of the side member 3 at the lower edge of the hood ridge panel 1.

The strut tower 4 has a vertical wall 5 bulging toward the center in the left-right direction of the vehicle body, and an upper wall 6 is mounted on the upper part of the vertical wall 5 (this structure is disclosed in Japanese Utility Model Application Laid-Open No. 89772).

[0004]

However, in the conventional strut tower 4 described above, the input acting on the upper wall 6 of the strut tower 4 from the suspension is the upper wall 6.
To the vertical wall 5, so that the upper part of the strut tower 4 tends to be displaced toward the center in the left-right direction of the vehicle body, so that the strut tower tends to fall down, and to compensate for the resulting decrease in body rigidity. It is necessary to take measures such as increasing the thickness of various members around the strut tower 4.

Therefore, the present invention provides a strut tower having high strength and rigidity without increasing the strength of peripheral members.

[0006]

Means for Solving the Problems A vertical wall bulging toward the center in the left-right direction of the vehicle body is provided, and an upper wall is provided at an upper end opening of the vertical wall and is attached to a hood ridge reinforcement.
In a strut tower in which a lower portion of a vertical wall is attached to a front side member , a hood lid is attached to the upper wall.
When the connecting part to be connected with the giraffe is provided
Also, a front side member is connected to the lower part of the vertical wall.
Mounting portions are provided, the front side and the rear side of the vertical wall
, Said upper wall and the mounting portion of the front side member
DOO reinforcing member that connects are provided respectively, and these reinforcing members are extending from the vertical wall while directing the lateral direction of the vehicle body
It is connected to the first flange out, and a second flange directed to the longitudinal direction of the contiguous vehicle body via the ridge line to the first flange, and these first and second flanges and the longitudinal wall
That it is thus configured and ribs.

[0007]

The input load applied to the upper wall of the strut tower from the suspension is shared by the side members via reinforcing members provided on the front and rear surfaces of the upper wall. Here, the first flange and the second flange forming the ridge line provided on the reinforcing member oppose the input load in the vertical direction, the horizontal direction, and the front-rear direction, and the opening between the first flange and the second flange is formed by a rib. suppress.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention. In the figure, a strut tower 10 is integrally formed of an aluminum casting.

The strut tower 10 has an arched vertical wall 11 bulging toward the center in the left-right direction of the vehicle body, and an upper wall 12 is provided above the vertical wall 11.

The strut mounting hole 1 is formed at the center of the upper wall 12.
3 and three bolt holes 14 for strut mounting are formed around the strut mounting hole 13. The side edges of the upper wall 12 is outwardly flared in the width direction of the vehicle body than the vertical wall 11, the hood ridge reinforcement 15 is adapted to be attached to the overhanging connecting portion 50.

At the lower part of the vertical wall 11, there is provided an attachment portion 17 having an L-shaped cross section, which is attached to the front side member 16.

The front end of the vertical wall 11 as a front side surface and the rear end of the vertical wall 11 as a rear side surface extend from the upper wall 12 to the mounting portion 17 of the side member 16 as a reinforcing member. Reinforcing portions 18 are provided, respectively.

The reinforcing portion 18 has a first flange 19 extending in the left-right direction of the vehicle body, and a second flange 21 connected to the first flange 19 via a ridge line 20 and extending in the front-rear direction of the vehicle body having an L-shaped cross section. The U-shaped cross section surrounded by the first flange 19, the second flange 21, and the vertical wall 11 has the first flange 19, the second flange 21, the vertical wall 11, Are formed perpendicular to each other.

Next, the operation will be described. As shown in FIG. 2, the vertical input load F <b> 1 from the suspension is transmitted from the upper wall 12 to the vertical wall 11, but also transmitted to the ridge line 20 between the first flange 19 and the second flange 21 of the reinforcing portion 18. Therefore, the upper portion of the strut can be reliably supported, and the input load acting on the upper wall 12 of the strut tower 10 can be efficiently transmitted to the side member 16 as indicated by the arrow.

Here, the first flange 1 of the reinforcing portion 18 is used.
9, the second flange 21, and the vertical wall 11 are connected by the ribs 22, so that a U-shaped cross-section formed by the ribs can be prevented from opening when a downward force is applied, for example. Therefore, the input load applied from the suspension can be more reliably countered, and the input load can be reliably transmitted to the side members 16.

On the other hand, as shown in FIG. 3, the first flange 19 and the rib 22 receive the input load F2 from the suspension in the front-rear direction in the direction along the respective planes as indicated by arrows. Therefore, it is possible to sufficiently counteract the input load F2 in the front-rear direction from the suspension.

Therefore, the rigidity of the strut tower 10 is increased, and the strut tower 10 can be prevented from falling down.

As shown in FIG. 4, due to the input load P to the side member 16 and the reaction force from the dash upper panel 23 at the time of frontal collision of the vehicle, the side member 16 tends to buckle as indicated by the broken line in FIG. Although an upward force acts on the reinforcing portion 18, similarly, a downward force acts on each reinforcing portion 18 by the input load P to the hood ridge force 15, so that the upward force and the downward force are offset, Therefore, buckling of the side member 16 as shown by the broken line can be suppressed.

Next, a second embodiment will be described with reference to FIG.

In this embodiment, the same parts as those of the above-mentioned embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, a step is provided between the first flange 19 and the second flange 21 in order to provide two ridge lines in the above embodiment, and a second sub-flange 24 pointing in the front-back direction of the vehicle and a left-right First sub-flange 25 oriented in the direction
Are provided. Therefore, the first ridge line 2 is formed at the joint between the first flange 19 and the second sub-flange 24.
6, the second ridge line 27 is formed at the joint portion between the second flange 21 and the first sub-flange 25.

According to this embodiment, the first ridgeline 26 and the second ridgeline 26
A first flange 19 and a first sub-flange 25 which are provided with two ridge lines of a ridge line 27 and extend in the left-right direction of the vehicle body, and have a second flange 21 and a second sub-flange 24 which extend in the front-rear direction of the vehicle body. Therefore, the input load from the suspension can be transmitted to the side member 16 more efficiently.

Next, another embodiment will be described with reference to FIGS. In the following embodiments, the same parts as those in the first embodiment will be denoted by the same reference numerals.

In the third embodiment shown in FIG. 6, the first flange 19 and the second flange 21 of the reinforcing portion 18 in the first embodiment are reinforced along the vertical direction to reinforce the reinforcing portion 18 in the vertical direction. In the fourth embodiment shown in FIG. 7, a cross-shaped bead 29 for distributing an input load to the ridge 20 is provided on the first flange 19 of the reinforcing portion 18 in the fourth embodiment shown in FIG. Things. According to the third and fourth embodiments, the rigidity of the reinforcing portion 18 is further increased by the beads 28 and 29, and the strut tower 10 can be reinforced more effectively.

In the fifth embodiment shown in FIG. 8, the ribs 22 in the first embodiment are replaced by ribs 30 provided in a cross shape. Also in this embodiment, the first flange 19
The U-shaped cross section surrounded by the ribs 30 and the second flange 21 and the vertical wall 11 is sufficiently reinforced by the ribs 30, and the strut tower 10 can be reinforced effectively.

[0026]

As described above, according to the present invention, it is possible to reliably counter the vertical input and the front-rear direction acting from the suspension and to efficiently transmit the input load to the side members. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view showing a transmission state of the same force.

FIG. 3 is a perspective view showing a state of transmission of the same force.

FIG. 4 is a side view of the same.

FIG. 5 is a perspective view of a second embodiment of the present invention.

FIG. 6 is a partial perspective view of a third embodiment of the present invention.

FIG. 7 is a partial perspective view of a fourth embodiment of the present invention.

FIG. 8 is a perspective view of a fifth embodiment of the present invention.

FIG. 9 is a perspective view of a vehicle body.

FIG. 10 is a perspective view of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Strut tower 11 ... Vertical wall 12 ... Upper wall 16 ... Side member 17 ... Attachment part 18 ... Reinforcement part (reinforcement member) 19 ... 1st flange 20 ... Ridge line 21 ... 2nd flange 22 ... Rib

Claims (1)

(57) [Scope of request for utility model registration] [Claim 1, further comprising a vertical wall which bulges toward the lateral center portion of the vehicle body, and the upper wall provided on the upper end opening of the vertical wall
In a strut tower attached to a hood ridge reinforcement and a lower portion of a vertical wall attached to a front side member , a hood ridge reinforcement is attached to the upper wall.
A connecting portion to be connected to the vertical wall is provided.
Attachment part that is connected to the front side member at the bottom of
Is provided on the front side and the rear side of the vertical wall , the upper wall
And provided auxiliary <br/> strength members for connecting the mounting portion of the front side members, respectively, of these reinforcing members may include a first flange extending from the vertical wall while directing the lateral direction of the vehicle body, the a second flange directed to the longitudinal direction of the contiguous vehicle body via the ridge line to the first flange, and a Te <br/> by a rib connecting the these first and second flanges and the longitudinal wall A strut tower characterized by the following: