JP2007290552A - Supported body supporting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supported body supporting structure capable of enhancing the degree of freedom of the arrangement of a supported body while ensuring the shock-absorbing performance to be input in the supported body. <P>SOLUTION: In an in-instrument panel monitor supporting structure 10, a bracket 18 supports a monitor 14 mounted on its monitor mounting unit 20 with respect to a vehicle body. A differential rigidity setting unit 24 for regulating the direction of the deformation caused by the load not less than a predetermined value applied to the vehicle body side from the monitor 14 to the forwardly folding direction different from the longitudinal direction is provided on a longitudinal part located between the monitor mounting unit 20 and a vehicle body mounting unit in the bracket 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a support structure for a supported body for supporting the supported body with respect to a vehicle body.

A monitor mounting structure is known in which a monitor provided on the upper part of an instrument panel in a vehicle compartment is supported on a vehicle body by inserting the clip into a grommet provided on a support bracket (see, for example, Patent Document 1). . In this technique, when a downward impact force is applied to the monitor, the grommet is plastically deformed while the monitor is displaced downward to absorb the impact.
JP 2001-347895 A

  However, since the conventional technology as described above is configured to displace the monitor downward, it is necessary to set an allowable movement space for securing an impact absorption stroke below the monitor, and the arrangement of the monitor and other parts Etc. were restricted.

  An object of the present invention is to obtain a support structure for a supported body that can improve the degree of freedom of arrangement of the supported body while ensuring the shock absorption performance to be input to the supported body in consideration of the above facts. is there.

  In order to achieve the above object, a support structure for a supported body according to the first aspect of the present invention has a longitudinal length between a vehicle body mounting portion attached to the vehicle body side and a supported body mounting portion attached to the supported body. The portion is provided with a support member provided with deformation direction restricting means for restricting a deformation direction due to a load greater than or equal to a predetermined value acting from the supported body side to the vehicle body side in a specific direction different from the longitudinal direction.

  In the support structure for a supported body according to claim 1, the support member supports the supported body attached at the supported body-side attachment portion with respect to the vehicle body attached at the vehicle body-side attachment portion. When an impact force toward the vehicle body acts on the supported body, the support member is deformed in a specific direction different from the longitudinal direction (for example, the direction connecting the vehicle body mounting portion and the supported body mounting portion) by the deformation direction restricting means. The deformation absorbs the impact while stroking the supported body. As a result, for example, it becomes possible to set the specific direction in which the support member is deformed, that is, the shock absorbing stroke direction, in a direction in which the supported body does not interfere with other components, and ensuring a sufficient shock absorbing stroke (shock absorbing performance). It is possible to achieve both freedom of component placement.

  Thus, in the support structure for a supported body according to claim 1, the degree of freedom of arrangement of the supported body can be improved while ensuring the impact absorption performance to be input to the supported body.

  According to a second aspect of the present invention, there is provided a support structure for a supported body according to the first aspect, wherein the deformation direction restricting means is provided on one side of the support member in a direction intersecting the longitudinal direction. It is comprised by making it low rigidity with respect to the other side.

  In the support structure for a supported body according to claim 2, since one side of the support member in the direction intersecting with the longitudinal direction (for example, the width direction) is lower in rigidity than the other side, one side having low rigidity is on the other side. However, the deformation direction restricting means gives an opportunity to bend so that the supported body side of the support member is displaced to the one side.

  Therefore, in the support structure of the supported body, when an impact force to the vehicle body acts on the supported body, the supported body is deformed so as to bend the support member to the one side and the stroke is absorbed. Is done. Thereby, it is possible to configure a deformation direction restricting means that can reliably restrict the deformation direction of the support member to a specific direction with a simple structure.

  A support structure for a supported body according to a third aspect of the present invention is the support structure for a supported body according to the second aspect, wherein the support member is made of a plate material, and the deformation direction regulating means is The gap between the pair of bent portions formed in the support member along the direction intersecting the longitudinal direction is configured to be wider on one side in the intersecting direction than on the other side.

  In the support structure for the supported body according to the third aspect, one side having a large interval between the bent portions formed by bending the plate material has low rigidity with respect to the other side. Thereby, it is possible to configure a deformation direction restricting unit that can reliably restrict the deformation direction of the support member to a specific direction with a simpler structure.

  In order to achieve the above object, a support structure for a supported body according to a fourth aspect of the present invention has a longitudinal length between a vehicle body mounting portion attached to the vehicle body side and a supported body mounting portion attached to the supported body. The first bent portion located over the entire length in the direction intersecting with the longitudinal direction and the longitudinal portion between the vehicle body attaching portion and the supported body attaching portion with respect to the first bent portion A second bent portion that is positioned with one side in the direction intersecting the longitudinal direction spaced apart from the other side includes a support member formed by bending the plate material.

  In the support structure for a supported body according to claim 4, the support member supports the supported body attached at the supported body-side attachment portion with respect to the vehicle body attached at the vehicle body-side attachment portion. The first bent portion and the second bent portion formed between the vehicle body mounting portion and the supported-body-side mounting portion of the support member are separated from each other on one side in the direction intersecting the longitudinal direction. Therefore, the support member has a lower rigidity on one side between the first and second bent portions in the intersecting direction than the other side.

  Therefore, the support member is easily deformed greatly on one side between the bent portions having low rigidity, and gives a trigger to bend so that the supported side is displaced to the one side. For this reason, when an impact force toward the vehicle body acts on the supported body, the supported body is stroked while being deformed so as to bend the support member to the one side, so that the impact is absorbed. As a result, for example, it becomes possible to set the specific direction in which the support member is deformed, that is, the shock absorbing stroke direction, in a direction in which the supported body does not interfere with other components, and ensuring a sufficient shock absorbing stroke (shock absorbing performance). It is possible to achieve both freedom of component placement.

  Thus, in the support structure for a supported body according to claim 4, the degree of freedom of arrangement of the supported body can be improved while ensuring the impact absorption performance to be input to the supported body.

  As described above, the support structure of the supported body according to the present invention has an excellent effect that the degree of freedom of arrangement of the supported body can be improved while ensuring the shock absorption performance to be input to the supported body. .

  An instrument panel monitor support structure 10 as a support structure for a supported body according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. In addition, the arrow FR and arrow UP which are suitably described in each figure indicate the forward direction (traveling direction) and the upward direction of the automobile to which the instrument panel monitor support structure 10 is applied, respectively.

  In FIG. 1, an instrument panel monitor support structure 10 is shown in a schematic side view. As shown in this figure, the in-instrument monitor support structure 10 supports a monitor 14 as a supported body on the inside of the instrument panel 12 (in front of the passenger compartment) with respect to the vehicle body. The monitor 14 is a device having a function including a display function for displaying navigation information, vehicle information, and the like so as to be visible from the passenger compartment, and is disposed on the instrument panel 12. In this embodiment, an audio device 16 is disposed below the monitor 14 (center cluster portion).

  The in-instrument monitor support structure 10 includes a bracket 18 as a support member for supporting the monitor 14 with respect to the vehicle body. The brackets 18 are provided on both sides of the monitor 14 in the vehicle width direction, respectively. Since these are basically configured in the same shape (substantially left-right symmetry), only one bracket 18 will be described below.

  The bracket 18 is formed in a substantially flat plate shape extending in the longitudinal direction of the vehicle body and in the vertical direction as a whole and is elongated along the vertical direction of the vehicle body, and the upper end of the bracket 18 is a monitor mounting portion as a supported body mounting portion. It is set to 20. The monitor 14 is fixedly attached to the monitor attachment portion 20 by a fastener such as a screw. A lower end (not shown) of the bracket 18 is a vehicle body attachment portion fixedly attached to the vehicle body structure portion. The vehicle body structure portion to which the vehicle body mounting portion of the bracket 18 is fixed may be, for example, a dash panel, a dash cross member, a support bracket (not shown) fixed to the instrument panel reinforcement 22, or the like.

  A rigidity difference setting portion 24 as a deformation direction restricting means is formed at the intermediate portion in the longitudinal direction of the bracket 18 over its entire width (a width in a direction substantially coinciding with the longitudinal direction of the vehicle body). As shown in FIG. 2, the rigidity difference setting unit 24 includes an upper step portion 26 as a first bent portion and a lower side as a second bent portion, which are formed by bending the bracket 18 (a plate material constituting the bracket 18). It is formed as a plate-like part connecting the step part 28. And the rigidity difference setting part 24 is formed in a taper shape so that the upper step part 26 and the lower step part 28 are continuously spaced from one end to the other end in the bracket width direction. It is formed in a substantially trapezoidal shape.

  In this embodiment, the length a of the front edge 24A located on the front side in the longitudinal direction of the vehicle body in the rigidity difference setting unit 24 is set to be longer than the length b of the rear edge 24B. Thereby, the rigidity difference setting part 24 is a low-rigidity part in which the front edge 24A has a low rigidity (easy to buckle) with respect to the load in the bracket longitudinal direction with respect to the rear edge 24B. In this embodiment, the rigidity difference setting portion 24 is formed directly below the monitor mounting portion 20 and is located between the monitor 14 and the audio device 16.

  Next, the operation of this embodiment will be described.

  In the instrument panel monitor support structure 10 configured as described above, the pair of brackets 18 support the monitor 14 with respect to the vehicle body.

  For example, when an occupant collides with the monitor 14 at the time of a vehicle collision and an impact load is input to the monitor 14 in the direction of arrow I shown in FIG. 3, the bracket 18 has a rigidity difference setting unit that is a low rigidity portion thereof. The front edge 24A of 24 is deformed (buckled), and the upper part of the rigidity difference setting portion 24 is bent so that it falls forward. When the load from the monitor 14 is further transmitted, the bracket 18 absorbs the impact by causing the monitor 14 to stroke in the direction of the arrow S indicating the movement trajectory including the rotational motion while bending so that the upper part falls forward. . Thereby, in the monitor support structure 10 in the instrument panel, the shock can be absorbed with a sufficient stroke without causing the monitor 14 to interfere with the audio device 16, and the impact load (peak load) acting on the occupant can be reduced. it can.

  For example, in the in-instrument monitor support structure 100 according to the comparative example shown in FIG. 5, the monitor 14 is supported with respect to the vehicle body by the bracket 102 in which the rigidity difference setting portion 24 is not formed. Is input to the monitor 14, the bracket 102 simply buckles in the vertical direction (longitudinal direction), and the monitor 14 interferes with the audio device 16 in the shock absorbing process due to the downward stroke indicated by the arrow L. . For this reason, when the in-instrument monitor support structure 100 is applied, the audio device 16 must be disposed sufficiently away from the monitor 14, and there is a restriction in component arrangement, and space efficiency in the instrument panel 12. It is difficult to improve.

  On the other hand, in the in-instrument monitor support structure 10 according to the embodiment of the present invention, the monitor 14 is stroked in the arrow S direction with respect to the input load in the arrow I direction as described above. Sufficient shock absorbing performance can be ensured without relying on measures to be placed. Therefore, for example, the monitor 14 and the audio device 16 can be arranged close to each other in the vertical direction, and the space efficiency in the instrument panel 12 can be improved. Thereby, the freedom degree of arrangement | positioning of each component in the instrument panel 12 improves, and the freedom degree of a design also improves.

  Further, in the in-instrument monitor support structure 10, the setting of the rigidity difference setting unit 24 is realized with a simple structure in which the rigidity on one side in the width direction of the bracket 18 is made lower than the rigidity on the other side. In particular, in the instrument panel monitor support structure 10, the rigidity difference setting portion 24 is formed between the upper step portion 26 and the lower step portion 28 by bending (pressing) the plate material. The setting of the difference setting unit 24 is realized.

  Further, in the in-instrument monitor support structure 10, the rigidity difference setting portion 24 is formed over the entire width of the bracket 18, so that, for example, compared to a configuration in which the deformation direction restricting means is formed by setting the notch portion, The support rigidity of the monitor 14 by the bracket 18 is high.

  In the above embodiment, an example in which the bracket 18 has the single rigidity difference setting unit 24 formed between the pair of upper and lower stepped portions 26 and 28 is shown, but the present invention is not limited to this, for example, It is good also as a structure which has the rigidity difference setting part 30,40,50 which concerns on a modification as shown by FIG. 4 (A) thru | or FIG.4 (C).

  The rigidity difference setting unit 30 according to the first modification shown in FIG. 4A spans between the upper bent portion 32 and the lower bent portion 32 in a substantially arch shape, and the rear edge 30B is formed at the front edge 30A. Since the distance between the upper and lower bent parts 32 and 34 is longer than that of the upper edge 30A, the front edge 30A is a low-rigidity part. The same effects as the bracket 18 having the rigidity difference setting unit 24 can be obtained by the bracket 18 having the rigidity difference setting unit 30.

  The rigidity difference setting unit 40 according to the second modification shown in FIG. 4B is configured such that a rigidity difference setting part 24 in the reverse direction is formed between the two rigidity difference setting parts 24. In this way, the stiffness difference setting unit 40 that combines the plurality of stiffness difference setting units 24 can more accurately regulate (control) the stroke direction (movement trajectory) of the monitor 14 when an impact load is input.

  The rigidity difference setting unit 50 according to the third modification shown in FIG. 4C is configured such that the two rigidity difference setting parts 24 are formed in opposite directions. In this way, the stiffness difference setting unit 50 that combines the plurality of stiffness difference setting units 24 can more accurately regulate (control) the stroke direction (movement trajectory) of the monitor 14 when an impact load is input.

  In the above-described embodiment, an example in which the monitor 14 as a supported body is supported in the instrument panel 12 has been described. However, the present invention is not limited to this, and a structure in which various supported bodies are omitted from the vehicle body. Can be applied. Therefore, the deformation direction of the support member (bracket 18) regulated by the rigidity difference setting unit 24 may be set according to the positional relationship between the supported body and the surroundings, and is not limited to the above embodiment. .

  Moreover, in the said embodiment and each modification, although the rigidity difference setting part 24, 30, 40, 50 showed the example protruded to the one side of the plate | board thickness direction of the bracket 18, this invention is not limited to this, For example, the pair of upper and lower step portions 26 and 28 may be bent in the opposite direction to constitute the rigidity difference setting unit 24 or the like, and the upper and lower bending portions 32 and 34 may be bent in the opposite direction to corrugated rigidity difference setting unit. 30 may be configured.

It is a side view which shows typically the monitor support structure in an instrument panel concerning the embodiment of the present invention. It is a perspective view which shows the rigidity difference setting part of the bracket which comprises the monitor support structure in instrument panel which concerns on embodiment of this invention. It is a side view which shows typically the shock absorption state of the monitor support structure in an instrument panel concerning the embodiment of the present invention. It is a figure which shows the modification of the rigidity difference setting part of the bracket which comprises the monitor support structure in an instrument panel which concerns on embodiment of this invention, Comprising: (A) is a perspective view of a 1st modification, (B) is a 2nd modification. The perspective view of an example and (C) are the perspective views of a 3rd modification. It is a side view which shows the monitor support structure in an instrument panel in the comparative example with embodiment of this invention.

Explanation of symbols

10 Instrument panel monitor support structure (support structure of supported body)
14 Monitor (supported body)
18 Bracket (support member)
20 Monitor mounting part (supported body mounting part)
24 Rigidity difference setting part (deformation direction restricting means)
26 Upper step (bent part)
28 Lower step (folded part)
30, 40, 50 Rigidity difference setting part (deformation direction regulating means)
32 ・ 34 Folding part

Claims (4)

  The longitudinal direction between the vehicle body attachment portion attached to the vehicle body side and the supported body attachment portion attached to the supported body is elongated in the deformation direction due to a load greater than a predetermined value acting on the vehicle body side from the supported body side. A support structure for a supported body including a support member provided with deformation direction restricting means for restricting in a specific direction different from the direction.   The support structure for a supported body according to claim 1, wherein the deformation direction restricting means is configured such that one side of the support member in a direction intersecting the longitudinal direction has a low rigidity with respect to the other side. The support member is made of a plate material,
The deformation direction restricting means is configured such that an interval between a pair of bent portions formed on the support member along a direction intersecting the longitudinal direction is made wider on one side of the intersecting direction than on the other side. The support structure for a supported body according to claim 2. A first bent portion positioned over the entire length in a direction intersecting the longitudinal direction at a longitudinal portion between the vehicle body attaching portion attached to the vehicle body side and the supported body attaching portion attached to the supported body;
A second fold located in a longitudinal portion between the vehicle body attachment portion and the supported body attachment portion, with one side in a direction intersecting the longitudinal direction with respect to the first fold portion being separated from the other side. And
The support structure of the to-be-supported body provided with the supporting member currently formed by bending of a board | plate material.

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