JP2013199203A - Impact absorption structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a center console bracket capable of effectively distributing and absorbing a collision load of a side collision in a floor tunnel with a simple structure having a small number of parts.
A center console bracket (16) has a front wall (23a), an upper wall (23b), and a rear wall (23c) and is formed in a U shape in a side view of the vehicle body, and the lower ends of the front wall (23a) and the rear wall (23c) are connected to the floor tunnel (13). A first member 23 fixed to the upper surface, a pair of left and right second members 24 closing the left and right openings of the first member 23, and fixed to the upper surface of the floor tunnel 13 and extending in the left-right direction, Since the brace 27 which opposes the inner surface of a pair of 2nd member 24 is provided, the box-shaped center console bracket 16 is comprised with few parts number of the 1st member 23 and the 2nd 2 member 24, and is manufactured. Not only can the cost be reduced, but the side impact collision load can be effectively distributed by dispersing the side impact collision load from the second member 24 to the floor tunnel 13 via the brace 27. Can be absorbed.
[Selection] Figure 3

Description

  The present invention provides a vehicle shock absorbing structure that supports a center console bracket on a floor tunnel sandwiched between left and right front seats, and absorbs collision energy by causing the front seat to interfere with the center console bracket during a side collision of the vehicle. About.

  Light metal shells are placed on the left and right side walls of the center console, and the left and right shells are connected by two upper and lower cross braces arranged in the vehicle width direction, allowing collision loads input to one of the left and right seats to be Patent Document 1 listed below discloses a technique for transmitting to the other seat and restricting and protecting the movement of the occupant in the left-right direction.

  The center console bracket is composed of an impact absorbing member support bracket that combines two plates and an impact absorbing member that combines four plates, and the impact absorbing member support bracket is fixed to the upper surface of the floor tunnel. A device in which an impact absorbing member is fixed to the upper surface of the impact absorbing member support bracket is known from Patent Document 2 below.

US Pat. No. 5,897,155 JP 2001-102115 A

  However, since the lower part of the left and right shells is merely coupled to the side surface of the floor tunnel, the strength described in the above-mentioned Patent Document 1 is insufficient, and the collision load of the side collision is reduced to the shell. There is a problem that it is difficult to disperse and absorb efficiently from the floor tunnel.

  Moreover, since the center console bracket is comprised combining many members, what was described in the said patent document 2 had the problem which causes a cost increase by the number of parts and an assembly man-hour increasing.

  The present invention has been made in view of the above-described circumstances, and provides a shock absorbing structure for a vehicle that can effectively disperse and absorb a side impact collision load in a floor tunnel with a simple structure having a small number of parts. The purpose is to do.

  In order to achieve the above object, according to the first aspect of the present invention, a center console bracket is supported on a floor tunnel sandwiched between left and right front seats, and the front seat is placed in the center during a side collision of a vehicle. In the shock absorbing structure for a vehicle that interferes with the console bracket and absorbs collision energy, the center console bracket has a front wall, an upper wall, and a rear wall, and is formed in a U shape in a side view of the vehicle body. And a lower end of the rear wall fixed to the upper surface of the floor tunnel, a pair of left and right second members closing the left and right openings of the first member, and an upper surface of the floor tunnel A shock absorbing structure for a vehicle is proposed, characterized in that it includes a brace extending in the left-right direction and having both ends opposed to the inner surfaces of the pair of left and right second members. It is.

  According to the invention described in claim 2, in addition to the configuration of claim 1, the first member includes X-shaped beads on the front wall and the rear wall, and on the left and right sides of the upper wall. A shock absorbing structure for a vehicle is proposed, which includes a plurality of beads extending in a direction.

  According to the invention described in claim 3, in addition to the configuration of claim 1 or claim 2, the first member has outer edges in the left-right direction of the front wall, the upper wall, and the rear wall. A shock absorbing structure for a vehicle is proposed, which is connected to the outer peripheral portion of the second member by a connecting flange folded back in the direction.

  According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the brace is composed of a steel plate bent in a box shape. A shock absorbing structure is proposed.

  According to the fifth aspect of the present invention, in addition to the structure of any one of the first to fourth aspects, a stiffener is superposed on the upper surface of the floor tunnel, and the center console is disposed on the upper surface of the stiffener. A shock absorbing structure for a vehicle is proposed in which the bracket is fixed.

  The rear stiffener 22 of the embodiment corresponds to the stiffener of the present invention.

  According to the configuration of claim 1, the center console bracket has a front wall, an upper wall, and a rear wall and is formed in a U shape in a side view of the vehicle body, and the lower ends of the front wall and the rear wall are on the upper surface of the floor tunnel. A fixed first member, a pair of left and right second members closing the left and right openings of the first member, and fixed to the upper surface of the floor tunnel and extending in the left and right direction, and both end portions of the pair of left and right second members Since it has a brace facing the inner surface, a box-shaped center console bracket can be configured with a small number of parts of one first member and two second members to reduce the manufacturing cost, By dispersing the collision load of the collision from the second member to the floor tunnel via the brace, the collision load of the side collision can be effectively absorbed.

  According to the second aspect of the present invention, the first member includes X-shaped beads on the front wall and the rear wall, and includes a plurality of beads extending in the left-right direction on the upper wall, so that a special reinforcing member is required. The center console bracket can be effectively increased in strength against a collision load of a side collision, and a space for disposing other members such as a parking brake wire below the X-shaped beads on the front wall and the rear wall. Can be easily secured.

  According to the configuration of claim 3, the first member is coupled to the outer peripheral portion of the second member by a coupling flange in which the left and right end edges of the front wall, the upper wall, and the rear wall are folded outward. The area of the second member that receives the collision load of the collision can be increased, and an article storage space inside the center console can be secured between the left and right coupling flanges bent upward from the upper wall.

  According to the fourth aspect of the present invention, since the brace is made of a steel plate bent in a box shape, the collision load input to the center console bracket by the brace having high strength can be effectively distributed to the floor tunnel.

  According to the fifth aspect of the present invention, since the center console bracket is fixed to the upper surface of the stiffener superimposed on the upper surface of the floor tunnel, the left and right corners of the upper surface of the floor tunnel to be deep drawn cannot be strongly bent. Even in this case, by bending the left and right corners of the stiffener strongly, the area of the upper surface can be expanded and the mounting space for the center console bracket can be secured. Moreover, the strength of the upper part of the floor tunnel can be increased by the stiffener, and the collision load input to the center console bracket can be effectively distributed to the floor tunnel.

The side view of the compartment front part of a motor vehicle. FIG. 2 is a two-direction arrow view of FIG. 1. FIG. 3 is an enlarged view of part 3 of FIG. FIG. 4 is a four-direction arrow view of FIG. 3. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. Note that the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction in this specification are based on the driver seated in the driver's seat.

  As shown in FIG. 1, a floor tunnel 13 that protrudes upward from the floor panel 12 and extends in the longitudinal direction of the vehicle body is disposed between the left and right front seats 11 and 11, and the upper surface of the floor tunnel 13 has a center with an armrest 14. Covered with a console 15. A center console bracket 16 for supporting the center console 15 from the inside is disposed inside the center console 15 and below the armrest 14. A hand brake support bracket 17 is fixed to the upper surface of the floor tunnel 13 in front of the center console bracket 16, and a lever portion 18 a of the hand brake device 18 fixed to the upper surface of the hand brake support bracket 17 is an opening of the center console 15. It penetrates the part and protrudes into the vehicle interior. A brake cable 19 having one end coupled to the lever portion 18a of the hand brake device 18 passes through the inside of the center console bracket 16 and the upper wall of the floor tunnel 13, and is connected to the parking brake of the rear wheel through the inside of the floor tunnel 13. Is done.

  As apparent from FIGS. 2 to 6, the upper wall 13 a of the floor tunnel 13 having a mountain-shaped cross section is covered from above by the front stiffener 21 and the rear stiffener 22. The front stiffener 21 includes a flat upper wall 21 a and left and right side walls 21 b and 21 b which are bent downward on the left and right side edges of the upper wall 21 a, and the left and right side walls 21 b and 21 b are the left and right side walls of the floor tunnel 13. 13b and 13b are overlapped and fixed by welding. Since the floor tunnel 13 is formed by deep-drawing the floor panel 12, the radius of curvature of the corner between the upper wall 13a and the side walls 13b, 13b cannot be reduced, but the front stiffener 21 has no such restriction. Therefore, the radius of curvature of the corner between the upper wall 21a and the side walls 21b and 21b is small. Thereby, the front stiffener 21 not only reinforces the floor tunnel 13 but also exhibits a function of expanding the area of the flat upper wall 21a and securing an area for attaching the handbrake support bracket 17.

  The rear stiffener 22 that supports the center console bracket 16 has the same shape as the front stiffener 21, and exhibits the same function as the front stiffener 21.

  The center console bracket 16 includes a first member 23 obtained by pressing a steel plate and a pair of left and right second members 24 and 24. The first member 23 is a “U” -shaped member having a front wall 23a, an upper wall 23b, and a rear wall 23c in a side view, and a pair of left and right mounting brackets 23d, 23d with the lower end of the front wall 23a bent forward. And a pair of left and right mounting brackets 23e, 23e bent rearward at the lower end of the rear wall 23c, and the mounting bracket 23d of the front wall 23a by stud bolts 25, 25; 26, 26 planted in the rear stiffener 22 , 23d and the mounting brackets 23e, 23e of the rear wall 23c are fastened to the upper surface of the rear stiffener 22.

  An “X” -shaped bead 23f is formed on the front wall 23a in a front view, and a notch 23g is formed below the bead 23f. Similarly, an “X” -shaped bead 23h is formed on the rear wall 23c in a rear view, and a notch 23i is formed below the bead 23h. The brake cable 19 is inserted through the notch 23g of the front wall 23a and the notch 23i of the rear wall 23c (see FIG. 1). A plurality of beads 23j... Extending in the left-right direction are formed in parallel on the upper wall 23b.

  Joint flanges 23k, 23k bent forward are formed on the left and right side edges of the front wall 23a, and joint flanges 23m, 23m bent upward are formed on the left and right side edges of the upper wall 23b. Connection flanges 23n and 23n bent rearward are formed on both left and right edges.

  The pair of left and right second members 24, 24 are substantially flat members, and the front edge, the upper edge, and the rear edge thereof are the coupling flanges 23k, 23k of the front wall 23a, the coupling flanges 23m, 23m of the upper wall 23b, and the rear. It is fixed to the coupling flanges 23n and 23n of the wall 23c by welding. As a result, the center console bracket 16 is formed in a box shape with the lower surface opened by the first member 23 and the second members 24 and 24.

  The center console bracket 16 includes a pair of front and rear braces 27, 27 housed therein. Each brace 27 is formed by bending a steel plate into a rectangular parallelepiped shape whose lower surface is open. With the longitudinal direction aligned in the left-right direction, mounting brackets 27a and 27b projecting forward and backward from the front edge and the rear edge are rear parts. It is welded to the upper surface of the stiffener 22. In the mounted state of the brace 27, the outer surfaces of the left and right side walls 27c, 27c face the inner surfaces of the second members 24, 24 in contact.

  Next, the operation of the embodiment of the present invention having the above configuration will be described.

  When the front seat 11 moves inward of the vehicle body due to a side collision of the vehicle, the inner side surface of the seat cushion collides with the side surface of the center console bracket 16 via the center console 15, and the center console starts from the seat frame inside the front seat 11. Although a collision load acts on the bracket 16, the strong center console bracket 16 absorbs the collision energy transmitted from the front seat 11, and prevents the front seat 11 from moving inward of the vehicle body to secure a occupant's living space. can do. In particular, the center console bracket 16 has a box structure in which the first member 23 and the left and right second members 24, 24 are combined, and the front wall 23a and the rear wall 23c of the first member 23 have an "X" -shaped bead. 23f and 23h are formed, and a plurality of beads 23j... Extending in the left-right direction are formed on the upper wall 23b, so that the strength of the center console bracket 16 is further increased.

  Two rectangular parallelepiped braces 27, 27 are arranged so as to connect the left and right second members 24, 24 of the center console bracket 16, and the lower surfaces of the braces 27, 27 are arranged on the upper surface of the rear stiffener 22. Since it is fixed, the load transmission efficiency from the center console bracket 16 to the rear stiffener 22 is increased by the braces 27, 27, and the impact load input to the center console bracket 16 is reliably distributed to the floor tunnel 13 to provide an impact absorbing effect. Can be increased.

  In particular, since the braces 27 and 27 made of steel plates bent in a box shape have a simple structure and high strength, the collision load input to the center console bracket 26 can be effectively distributed to the floor tunnel 13.

  Further, the rear stiffener 22 that reinforces the upper portion of the floor tunnel 13 has a smaller radius of curvature at the corner between the upper wall 21a and the side walls 21b, 21b. The mounting area of the bracket 16 and the like can be secured, and when a collision load from the side is applied to the center console bracket 16, the support can be strengthened to prevent the center console bracket 16 from falling.

  As described above, the outer shape of the box-shaped center console bracket 16 can be configured with a small number of parts, such as one first member 23 and two second members 24, 24, thereby reducing the manufacturing cost. Since the center console bracket 16 can be effectively reinforced by the braces 27, 27, the high-strength center console bracket 16 can be obtained with a simple structure with a small number of parts.

  In addition, the outer peripheral portion of the second member 24, 24 is coupled to the coupling flanges 23k, 23k; 23m, 23m; 23n, 23n obtained by folding the front wall 23a, the upper wall 23b, and the rear wall 23c outward. Therefore, not only can the area of the second members 24, 24 that receive the collision load of the side collision be increased, but also between the left and right coupling flanges 23m, 23m bent upward from the upper wall 23b, An article storage space can be secured.

  Further, since the hand brake device 18 and the center console bracket 16 are arranged adjacent to each other on the upper surface of the floor tunnel 13, the brake cable 19 extending rearward from the hand brake device 18 interferes with the center console bracket 16 and the layout is improved. There is a problem that becomes difficult. However, according to the present embodiment, the above problem can be solved by laying out the brake cable 19 through the notches 23g and 23i formed in the front wall 23a and the rear wall 23c of the center console bracket 16.

  The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

  For example, the side wall 27c of the brace 27 may face the inner surface of the second member 24 in a non-contact manner, or may be coupled to the inner surface of the second member 24 by welding or the like.

11 Front seat 13 Floor tunnel 16 Center console bracket 22 Rear stiffener (stiffener)
23 first member 23a front wall 23b upper wall 23c rear wall 23f bead 23h bead 23j bead 23k coupling flange 23m coupling flange 23n coupling flange 24 second member 27 brace

Claims (5)

A center console bracket (16) is supported on the floor tunnel (13) sandwiched between the left and right front seats (11), and the front seat (11) interferes with the center console bracket (16) at the time of a vehicle side collision. In the shock absorption structure of a vehicle that absorbs collision energy,
The center console bracket (16) has a front wall (23a), an upper wall (23b), and a rear wall (23c), and is formed in a U shape in a side view of the vehicle body, and the front wall (23a) and the rear wall A first member (23) having a lower end of the wall (23c) fixed to the upper surface of the floor tunnel (13);
A pair of left and right second members (24) closing the left and right openings of the first member (23);
A brace (27) fixed to the upper surface of the floor tunnel (13) and extending in the left-right direction, with both ends facing the inner surfaces of the pair of left and right second members (24);
A shock absorbing structure for a vehicle, comprising:   The first member (23) includes a plurality of X-shaped beads (23f, 23h) on the front wall (23a) and the rear wall (23c), and extends in the left-right direction on the upper wall (23b). The shock absorbing structure for a vehicle according to claim 1, further comprising a bead (23j).   The first member (23) is a coupling flange (23k, 23m, 23n) in which left and right end edges of the front wall (23a), the upper wall (23b) and the rear wall (23c) are folded outward. The shock absorbing structure for a vehicle according to claim 1 or 2, wherein the shock absorbing structure is coupled to an outer peripheral portion of the second member (24).   The shock absorbing structure for a vehicle according to any one of claims 1 to 3, wherein the brace (27) is formed of a steel plate bent into a box shape.   The stiffener (22) is superposed on the upper surface of the floor tunnel (13), and the center console bracket (16) is fixed to the upper surface of the stiffener (22). The shock absorbing structure for a vehicle according to any one of the preceding claims.

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