JP4645226B2 - Jack arrangement structure of vehicle - Google Patents

Description

  The present invention relates to a structure in which a jack is disposed in a rear luggage compartment of a vehicle.

  Conventionally, as a structure for arranging a jack in a rear cargo compartment of a vehicle, for example, Patent Document 1 discloses a cargo compartment floor panel constituting a floor surface of a cargo compartment and a rear end panel constituting a rear wall surface of the cargo compartment. In the vehicle provided, a spare tire pan for storing a spare tire is recessed in the luggage compartment floor panel, a spare tire is disposed in the spare tire pan, and between the spare tire and the rear end panel. A structure in which a jack is disposed is disclosed.

In the structure disclosed in Patent Document 1, a substantially L-shaped bracket is attached to the rear end panel as viewed from the side up to the jack, and the jack is held between the bracket and the spare tire pan. It is supposed to be.
JP-A-9-76947

  However, since the above brackets are weak in strength, if the cargo floor panel is deformed at the time of a rear impact and an upward force is applied to the jack, the bracket that holds the jack cannot withstand that force and is damaged. The jack may jump out of the spare tire pan.

  In order to avoid such a situation, it is conceivable to improve the strength of the bracket itself, but such a bracket increases the cost. Also, even if the bracket itself is no longer damaged by improving the strength of the bracket itself, if the strength of the part where the bracket is attached to the rear end panel is weak, the part will break at the time of rear impact and the bracket will be separated from the rear end panel. Therefore, it is necessary to reinforce the portion of the rear end panel to which the bracket is attached, resulting in a significant increase in mass.

  In view of such circumstances, an object of the present invention is to provide a jack arrangement structure that can reliably prevent a jack from popping out at the time of rear collision with a simple configuration.

The invention according to claim 1 is a pair of left and right rear side frames extending in the front-rear direction of the vehicle body, a cargo compartment floor panel disposed on the rear side frame and constituting a floor surface of the cargo compartment, and a rear wall surface of the cargo compartment In the jack arrangement structure of a vehicle, the spare tire is arranged on the cargo floor panel, and a jack is arranged between the spare tire and the rear end panel. A portion of the rear end panel projects to a position where it overlaps with the jack in plan view, and the projecting portion is configured to cover the jack from above. Are joined to form a closed cross-sectional shape. A part of the rear end front panel projects forward, and the jack is disposed so that a lower end portion of the jack is positioned below the spare tire, and a part of the lower end portion of the jack Is disposed at a position overlapping the rear portion of the spare tire in plan view, and a spare tire pan for housing the spare tire is recessed in the cargo floor panel in a region facing the rear end panel. The spare tire and the jack are disposed in a tire pan .

The invention according to claim 2, in jack arrangement structure for a vehicle according to claim 1, wherein the pair of rear side frames, the extend to the rear than the rear end panel, the vehicle body at the rear end of the rear side frames A rear bumper reinforcement extending in the vehicle width direction of the vehicle is provided, and the rear bumper reinforcement is formed in a shape that passes through a region where the jack exists in the front-rear direction of the vehicle body. .

  According to the first aspect of the invention, since a part of the rear end panel projects to the upper side of the jack, even if the jack attempts to jump upward from between the spare tire and the rear end panel at the time of a rear collision, the projected rear end A jack is held against a part of the panel to prevent the jack from popping out. In addition, since the part for holding the jack is formed by projecting a part of the rear end panel, the part is integrated with the rear end panel and has sufficient strength. There is little separation from the rear end panel. Accordingly, it is possible to reliably prevent the jack from jumping out at the time of a rear collision with a simple configuration in which a part of the existing rear end panel is projected.

In addition, since the rear end panel is formed in a closed cross-sectional shape, the rigidity of the rear end panel can be improved, thereby suppressing deformation of the cargo compartment floor panel at the time of rear collision, and deformation of the cargo compartment floor panel. The acceleration of popping out given to the jack can be reduced.

Further, when the jack tries to jump out while moving forward of the vehicle body at the time of a rear impact, the lower end of the jack comes under the spare tire, so that the jumping out of the jack can be suppressed.

Also, even if the jack tries to jump out at the time of a rear impact, a part of the lower end of the jack is held against the spare tire, so not only the rear end panel but also the spare tire is used to prevent the jack from jumping out from both the front and rear Can do.

In addition, by covering the spare tire pan, it is possible to make a cargo floor with a flat floor surface up to the rear end panel, and the usability of the cargo compartment can be improved.

According to the second aspect of the invention, the rear bumper reinforcement can prevent the impact at the time of the rear impact from being directly transmitted to the portion where the jack is disposed, thereby further effectively preventing the jumping out of the jack. can do.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  1 to 3 show a jack arrangement structure for a vehicle according to an embodiment of the present invention. In this embodiment, a mode in which the present invention is applied to a sedan type vehicle will be described. However, the vehicle to which the present invention is applied is not limited to this, and may be a hatch bag type vehicle.

  The vehicle is configured such that the trunk room 1 as a cargo compartment is opened largely rearward until reaching the floor surface 1a by opening the trunk lid 10, and a pair of left and right rear side frames extending in the front-rear direction of the vehicle body. 4, a luggage compartment floor panel 2 disposed on the rear side frame 4 and constituting the floor surface 1 a of the trunk room 1, and a rear end panel 3 constituting the rear wall surface of the trunk room 1.

  The rear side frame 4 passes through the rear end panel 3 and extends to the rear thereof, and a rear bumper rain extending in the vehicle width direction of the vehicle body extends across the rear end portions of the rear side frame 4. A force 8 is provided.

  The rear end panel 3 has an opening edge 33 that forms an opening for opening the trunk room 1 rearward. The opening edge 33 has a wide U-shape that opens upward, has a predetermined thickness in the front-rear direction of the vehicle body, and extends horizontally in the vehicle width direction of the vehicle body below the opening. The upper surface 33b of 33a is comprised so that it may be located on the substantially same plane as the floor surface 1a of the said trunk room 1. FIG. The specific structure of the opening edge 33 will be described later.

  A spare tire pan 5 is recessed in the cargo floor panel 2 in a region facing the rear end panel 3, and the spare tire 6 is disposed in a rollover state in the spare tire pan 5. A jack 7 is disposed between the spare tire 6 and the rear end panel 3.

  Although not shown, the cargo floor panel 2 can cover the space in the spare tire pan 5 from above with the spare tire 6 and the jack 7 disposed in the spare tire pan 5. When the lid is attached, the upper surface of the lid is substantially flush with the upper surface of the luggage floor panel 2 where the spare tire pan 5 is not recessed. The floor surface 1a of the substantially flat trunk room 1 is located at this position, and the flat floor surface 1a continues to the upper surface 33a of the horizontal portion 33b of the opening edge 33.

  In addition, a recess 51 that is further depressed in a region facing the rear end panel 3 is formed on the bottom surface of the spare tire pan 5, and the jack 7 is detachably fixed to the bottom surface of the recess 51. .

  The jack 7 is of a pantograph type, and has a substantially rectangular pedestal portion 71 in a plan view, a movable portion 72 that moves up and down, and extends along the longitudinal direction of the pedestal portion 71, A pair of link portions 73 connecting the movable portion 72 is provided, and the movable portion 72 is configured to move up and down by rotating a screw portion 74 provided on the link portion 73. In addition, the dimension in the width direction orthogonal to the longitudinal direction of the pedestal portion 71 is set to be larger than the width dimension of the link portion 73, and both end portions in the width direction of the pedestal portion 71 are outside the link portion 73. Overhangs.

  The jack 7 has a posture in which the longitudinal direction of the pedestal portion 71 is substantially parallel to the vehicle width direction of the vehicle body, and a portion of the pedestal portion 72 that protrudes forward from the link portion 73 is the spare portion in plan view. It is fixed at a position overlapping with the tire 6.

  On the bottom surface of the recess 51, there is provided a fixing metal 9 for removably fixing the jack 7. The fixing bracket 9 has a pair of left and right claw portions 91a at both front and rear end portions, a fixing member 91 attached to the bottom surface of the concave portion 51, and a curved portion projecting upward in a side view. A hook member 92 that can be engaged with the claw portion 91a, and the hook member 92 is engaged with the claw portion 91a while pressing the link portion 73 of the jack 7 from above. The jack 7 is fixed to the bottom surface of the recess 51. Note that the jack 7 can be removed by releasing the engagement state of the hook member 92 with the claw portion 91a.

  Next, a specific structure of the opening peripheral edge portion 33 of the rear end panel 3 will be described.

  As shown in FIG. 3, the opening edge portion 33 of the rear end panel 3 is formed in a closed cross-sectional shape by joining the rear end front panel 31 and the rear end rear panel 32 in the horizontal portion 33a.

  The rear end front panel 31 has an upper portion projecting forward to form a projecting portion 31a, and is convex forward in a side view.

  The overhanging portion 31a extends to a position overlapping the jack 7 in plan view, and can cover the jack 7 from above. Moreover, the clearance gap between this overhang | projection part 31a and the said spare tire is set smaller than the width dimension of the base part 71 of the jack 7 so that the jack 7 cannot pass.

  The upper surface of the rear end front panel 31 is bent so as to protrude upward, and the upper surface of the rear end front panel 31 constitutes the upper surface 33b of the horizontal portion 33a.

  On the other hand, the rear end rear panel 32 connects the predetermined positions in the vertical direction of the rear end front panel 31 while slightly inflating backward.

  Further, the rear damper reinforcement 8 positioned behind the rear end panel 3 will be described. The rear bumper reinforcement 8 has a generally U-shaped flange with a front opening in a side view, and a vehicle body. In the vehicle width direction, the central portion is formed in a shape that is one step lower than both end portions, and the central portion passes through the region where the jack 7 exists in the front-rear direction of the vehicle body.

  As described above, according to the jack arrangement structure of the present embodiment, since the protruding portion 31a of the rear end panel 3 extends to the upper side of the jack 7, the hook member 92 and the claw portion of the fixing bracket 9 at the time of rear collision. Even if the engagement state with 91a is released and the jack 7 is about to jump out from between the spare tire 6 and the rear end panel 3, the jack 7 is stopped against the overhanging portion 31a to prevent the jack 7 from popping out. Is done. Further, since the overhanging portion 31a for holding the jack 7 is formed by overhanging the upper portion of the rear end front panel 31, the overhanging portion 31a is integrated with the rear end panel 3 and has sufficient strength. Even if the jack 7 hits, the overhanging portion 31 a is hardly separated from the rear end panel 3. Accordingly, it is possible to reliably prevent the jack 7 from jumping out at the time of a rear collision with a simple configuration in which a part of the existing rear end panel 3 is projected.

  Further, since the opening edge portion 33 of the rear end panel 3 is formed in a closed cross-sectional shape, it is possible to improve the rigidity of the rear end panel 3, thereby suppressing deformation of the cargo floor panel 2 at the time of rear collision. Thus, it is possible to reduce the acceleration of the jumping applied to the jack 7 due to the deformation of the cargo floor panel 2.

  Furthermore, since the jack 7 is fixed to the bottom surface of the concave portion 51 provided in the bottom surface of the spare tire pan 5 and the pedestal portion 71 of the jack 7 is located below the spare tire 6, the jack 7 is jacked at the time of a rear collision. When the 7 tries to jump out while moving in front of the vehicle body, the pedestal 71 of the jack 7 moves under the spare tire 6 so that the jack 7 enters between the spare tire 6 and the bottom surface of the recess 51. Therefore, jumping out of the jack 7 can be suppressed.

  Further, since the front side portion of the pedestal portion 71 of the jack 7 overlaps with the spare tire 6 in a plan view, the front side portion of the pedestal portion 71 is stopped against the spare tire 6 even if the jack 7 is about to jump out at the time of rear collision. By using not only the rear end panel 3 but also the spare tire 6, the jack 7 can be prevented from jumping out from both the front and rear of the jack 7.

  Further, since the central portion of the rear bumper reinforcement 8 passes through an area where the jack 7 exists in the front-rear direction of the vehicle body, the rear bumper reinforcement 8 directly applies the jack 7 at the time of rear impact. Therefore, it is possible to prevent the jack 7 from jumping out more effectively.

  In the above-described embodiment, the upper surface 33b of the horizontal portion 33a in the opening edge portion 33 of the rear end panel 3 has been shown to be located substantially on the same plane as the floor surface 1a of the trunk room 1, but the upper surface 33b of the horizontal portion 33a. 4 and 5 may be located above the floor 1a of the trunk room 1, as shown in FIGS. Even in this manner, if the upper portion of the rear end front panel 31 is projected to the upper side of the jack 7 to form the protruding portion 31a, the jack 7 can be prevented from protruding upward. Moreover, the closed cross-sectional shape of the opening edge part 33 can also be suitably changed according to the position of the horizontal part 33a.

  However, as in the above-described embodiment, if the upper surface 33b of the horizontal portion 33a and the floor surface 1a of the trunk room 1 at the opening edge 33 of the rear end panel 3 are located on substantially the same plane, the spare tire pan 5 is covered with the lid. Since the floor surface 1a of the trunk room 1 continues substantially flat up to the upper surface 33a of the horizontal portion 33a, the convenience of the trunk room 1 can be improved.

  Further, the recess 51 provided in the bottom surface of the spare tire pan 5 is not necessarily required. The spare tire 6 is disposed slightly above, and the front portion of the pedestal 71 of the jack 7 is positioned below the spare tire 6. As described above, the jack 7 may be fixed to the bottom surface of the spare tire pan 5.

  Furthermore, the method of fixing the jack 7 does not need to use the fixing bracket 9 and can be selected as appropriate.

It is a perspective view of the jack arrangement structure of vehicles concerning one embodiment of the present invention. FIG. 2 is a partially cutaway perspective view taken along line II-II in FIG. 1. It is the III-III sectional view taken on the line of FIG. It is a perspective view of the jack arrangement structure of a modification. It is the VV sectional view taken on the line of FIG.

Explanation of symbols

1 Trunk room
DESCRIPTION OF SYMBOLS 1a Floor surface 2 Loading compartment floor panel 3 Rear end panel 31 Rear end front panel 31a Overhang | projection part 32 Rear end rear panel 33 Opening edge part 4 Rear side frame 5 Spare tire pan 51 Recessed part 6 Spare tire 7 Jack 8 Rear damper reinforcement 9 Fixing bracket

Claims (2)

A pair of left and right rear side frames extending in the front-rear direction of the vehicle body, a cargo compartment floor panel disposed on the rear side frame and constituting a floor surface of the cargo compartment, and a rear end panel constituting the rear wall surface of the cargo compartment. In the vehicle jack arrangement structure in which a spare tire is arranged on the cargo floor panel and a jack is arranged between the spare tire and the rear end panel.
A part of the rear end panel projects to a position where it overlaps with the jack in plan view, and the projecting portion covers the jack from above.
The rear end panel is formed by joining a rear end front panel and a rear end rear panel to have a closed cross-sectional shape, and a part of the rear end panel is formed by projecting a part of the rear end front panel forward,
The jack is disposed so that a lower end portion of the jack is positioned below the spare tire, and a part of the lower end portion of the jack overlaps with a rear portion of the spare tire in a plan view. Established,
A spare tire pan for storing the spare tire is recessed in a region facing the rear end panel on the cargo floor panel, and the spare tire and the jack are disposed in the spare tire pan. The jack arrangement structure of the vehicle characterized by the above. The pair of rear side frames extend rearward from the rear end panel, and a rear bumper reinforcement extending in the vehicle width direction of the vehicle body is provided at a rear end portion of the rear side frame. 2. The jack arrangement structure for a vehicle according to claim 1, wherein the jack arrangement structure is formed so as to pass through a region where the jack exists in the longitudinal direction of the vehicle body .

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