JP2021112952A - Jack mounting structure of vehicle - Google Patents

Abstract

To mount a jack in place on a rear floor while ensuring its take-out property with a relatively compact configuration.SOLUTION: In a jack mounting structure of a vehicle which mounts a jack JK for lifting a vehicle removably on a rear floor 40 arranged inside a right side member 20 in a vehicle width direction while mounting and holding it on a mounting member 50, the right side member 20 has a front side portion 21 and a rear side portion 23 extending in a vehicle longitudinal direction on the rear side of the vehicle, and a bent portion 22 located between the front side portion 21 and the rear side portion 23, and is bent at the bent portion 22 in at least one of the vehicle width direction and an upward direction. The mounting member 50 is fixed to the right side member 20 and arranged on the vehicle front side with respect to the rear portion 23 in a state closer to the bent portion 22.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle jack mounting structure for mounting a jack at the rear of the vehicle.

This type of vehicle may be equipped with a jack that raises and lowers the vehicle in consideration of convenience such as when changing tires. For example, in the technique disclosed in Patent Document 1, a support bracket for a jack is arranged on a rear floor panel corresponding to the rear floor of the present invention. This support bracket is a member that can be mounted by inserting a jack, and corresponds to the mounting member of the present invention. The support bracket is formed so as to form a substantially U shape in a cross-sectional view, and an upper fixed piece portion is formed on the upper surface thereof so as to greatly project outward in the vehicle width direction. Further, a spare tire pan for a spare tire is recessed in the rear floor panel, and a recess for accommodating a jack is recessed on the right side of the vehicle of the spare tire pan. In the technique of Patent Document 1, the lower surface of the support bracket is arranged in the jack accommodating recess, and the jack is fixed in a state where it can be inserted from the front-rear direction of the vehicle. Further, the upper fixing piece of the support bracket is also fixed to the right edge of the rear floor panel together with the member members remotely arranged in the vehicle width direction. Then, in the technique of Patent Document 1, the jack is installed in the jack accommodating recess via the support bracket, and is juxtaposed with the spare tire on the spare tire pan. By arranging the jacks side by side with the spare tires and accommodating them compactly in this way, the structure contributes to securing the space in the trunk room.

Here, in the above configuration, a load may be input from the rear end of the vehicle at the time of a rear collision of the vehicle, but in such a case, the jack is placed at an appropriate position on the rear floor so that the jack does not scatter in an unintended direction. It is desirable to place it. For example, it is conceivable to secure a large clearance between the jack and the rear end of the vehicle by tilting the jack in the vertical direction. However, in such a configuration, the vertical dimensions of the mounting member must be increased by the amount that the jack is tilted up and down, which is not preferable from the viewpoint of securing space. Therefore, in the technique disclosed in Patent Document 2, a jack support portion corresponding to the mounting member of the present invention and a cross member extending in the vehicle width direction are arranged on the floor panel. A box-shaped regulating member whose rear is open is fixed to the cross member and is arranged in front of the jack support portion. In the technique of Patent Document 2, the jack is supported by the jack support portion in a substantially horizontal state, an appropriate clearance is provided between the jack and the rear end of the vehicle, and the front side of the jack is surrounded by a regulating member. .. With such a configuration, even if the jack is placed in a horizontal state, the jack that tends to scatter to the front side at the time of a rear collision of the vehicle can be received by the regulating member.

Japanese Unexamined Patent Publication No. 11-286248 Japanese Unexamined Patent Publication No. 2006-188190

By the way, in the above-mentioned jack mounting structure, it is desirable that the jack can be smoothly taken out from the vehicle in consideration of convenience for the occupants. However, in the technique of Patent Document 2, the regulating member covering the front side of the jack becomes an obstacle, and the configuration is unsuitable for ensuring the ease of taking out the jack. The present invention was devised in view of the above points, and the problem to be solved by the present invention is that the jack is mounted in a suitable place on the rear floor while ensuring its take-out property by a relatively compact configuration. It is to keep.

As a means for solving the above problems, in the vehicle jack mounting structure of the first invention, the jack for raising and lowering the vehicle is placed and held on the mounting member while being arranged inside the side member in the vehicle width direction. It is a structure for mounting on the rear floor so that it can be taken out. In this type of configuration, it is desirable that the jack be mounted in place on the rear floor while ensuring its ease of removal due to its relatively compact configuration. Here, the side member of the present invention has a front side portion and a rear side portion extending in the front-rear direction of the vehicle on the rear side of the vehicle, and a bending portion located between the front side portion and the rear side portion, and at the bending portion, the vehicle It is bent in at least one direction in the width direction and above. For this reason, in the side member, since the bent portion is bent in the vehicle width direction or upward, the portion from the bent portion to the rear side portion is deformed toward the front of the vehicle by the load input from the rear end of the vehicle. It is possible.

Therefore, the mounting member of the present invention is fixed to the side member and is arranged closer to the bent portion and closer to the front side of the vehicle than the rear portion. In the present invention, by arranging the mounting member at a position in front of the vehicle rather than the rear portion of the side member, a predetermined clearance is provided between the jack mounted via the mounting member and the rear end of the vehicle. Is secured. By arranging the mounting member together with the jack at a position close to the bent portion, it is possible to follow the deformation of the side member toward the front side, and maintain the above-mentioned clearance as much as possible even in the case of a vehicle rear collision. Can be done. As described above, in the present invention, since the above-mentioned clearance is secured by utilizing the deformation of the side member, a member that hinders the removal of the jack becomes unnecessary, and the structure contributes to ensuring the removal property of the jack. Further, in the present invention, since it is not necessary to secure the clearance by setting the jack in an inclined posture, the jack can be arranged along the rear floor, and the mounting member can be made as compact as possible.

In the jack mounting structure of the vehicle of the second invention, in the jack mounting structure of the vehicle of the first invention, the mounting member is passed to the side member and the rear floor from the vehicle width direction and fixed to them. In the present invention, the mounting member can be fixed and stably arranged on both the side member and the rear floor, and the mounting member further reinforces the portion between the side member and the rear floor. can do.

The jack mounting structure of the vehicle of the third invention is the jack mounting structure of the vehicle of the first invention or the second invention, and the bending portion is a front bending portion which is a bending starting point with respect to the front side portion and a bending starting point with respect to the rear side portion. It is bent in one direction with the rear bent portion, and the mounting member is fixedly arranged between the front bent portion and the rear bent portion. In the present invention, the mounting member is arranged so as to be substantially fitted in the bent portion, so that the clearance between the jack and the rear end of the vehicle can be more reliably secured.

The jack mounting structure of the vehicle of the fourth invention is the jack mounting structure of the vehicle of the third invention. It is fixed to the flexion site at the fixed site. In the present invention, by fixing the mounting member to the bent portion in a well-balanced manner at the front and rear fixing portions, it is possible to reliably follow the side member at the time of deformation.

The vehicle jack mounting structure of the fifth invention is the vehicle jack mounting structure of any one of the first to fourth inventions, and the side member is provided with a fragile portion that promotes deformation thereof. In the present invention, since the deformation of the side member is promoted by the fragile portion, the clearance between the jack and the rear end of the vehicle can be more reliably maintained when the side member is deformed.

The jack-mounted structure of the vehicle of the sixth invention is the jack-mounted structure of the vehicle according to any one of the first to fifth inventions. A center portion on which a possible slope plate is arranged is provided, and a side portion on which a jack mounted on a mounting member is arranged is provided between the side member and the center portion. On the rear floor of the present invention, from the viewpoint of improving the convenience of the vehicle, a center portion for arranging the slope plate is provided inside the side member in the vehicle width direction. Further, a side portion for arranging jacks is provided on the rear floor between the side member and the center portion, but this side portion tends to be relatively narrow due to the relationship with the center portion. Further, in the present invention, by making the mounting member relatively compact, it is possible to fit and arrange the jack well even if the side portion is relatively narrow.

According to the first invention according to the present invention, the jack can be mounted at an appropriate position on the rear floor while ensuring its take-out property due to the relatively compact configuration. Further, according to the second invention, the jack can be stably mounted at a suitable position on the rear floor due to the structure having higher strength. Further, according to the third invention, the clearance between the jack and the rear end of the vehicle can be more reliably secured. Further, according to the fourth invention, the clearance between the jack and the rear end of the vehicle can be more reliably maintained. Further, according to the fifth invention, the clearance between the jack and the rear end of the vehicle can be more reliably maintained. According to the sixth invention, the jack can be mounted at an appropriate position on the rear floor due to a relatively compact configuration while ensuring the convenience of the vehicle.

It is a schematic perspective view of the rear part of a vehicle which shows the slope device in a retracted state. It is a schematic perspective view of the rear part of a vehicle which shows the slope device in the deployed state. It is a top view of the rear part of a vehicle which shows a jack and a jack mounting structure. It is a perspective view of the rear part of a vehicle which shows a jack and a jack mounting structure. It is a perspective view of a jack. It is a perspective view of the side member on the rear floor side. It is a perspective view of the mounting member. It is a perspective view of the holding bracket. It is a perspective view of a mounting member, a side member, and a rear floor. It is a schematic cross-sectional view of the vehicle corresponding to the X-ray cross section of FIG. It is a schematic side view of the rear part of a vehicle which shows a jack. It is a schematic top view which shows the behavior of a jack and a side member at the time of a vehicle rear collision. It is a schematic top view which shows the behavior of a jack and a side member after a vehicle rear collision.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. 1 to 13. In each figure, for convenience, arrow lines indicating the front-rear direction, the up-down direction, and the left-right direction of the vehicle are appropriately shown. Further, in FIGS. 5 to 8, arrow lines indicating the front-rear direction, the up-down direction, and the left-right direction of each member are appropriately illustrated with reference to the state in which each member is installed in the vehicle. The front-rear direction shown in each figure corresponds to the vehicle front-rear direction, and the left-right direction shown in each figure corresponds to the vehicle width direction.

[Overview of the rear of the vehicle]
Here, before explaining the jack mounting structure JM, first, an outline of the rear part of the vehicle will be described. As shown in FIGS. 1 and 2, the vehicle 2 is provided with a rear opening 4 on the rear end side of the passenger compartment 3, and the rear opening 4 is a back door 5 that flips up upward. It is configured to be openable and closable. A carpet 400 is laid on the floor side of the vehicle interior 3, and a slope device 10 described later is provided on the rear opening 4 side. Then, with the slope device 10 described later, it is possible to get on and off a member such as a wheelchair (not shown) between the passenger compartment 3 and the road surface.

[Slope device (slope plate)]
The slope device 10 shown in FIGS. 1 and 2 has a slope plate 12 and a tailgate portion 13, and is displaceable between a retracted state and an expanded state. Here, the tailgate portion 13 is a plate-shaped member that supports the base end portion of the slope plate 12, and is connected to the lower side position of the rear opening 4 of the vehicle 2 in a vertically rotatable state. Further, the slope plate 12 is a plate-shaped member that is hung between the rear opening 4 of the vehicle 2 and the road surface, and is connected to the vehicle interior 3 in a state of being rotatable up and down together with the tailgate portion 13. .. The slope plate 12 is composed of a first flat plate portion 12a and a second storage plate portion 12b for accommodating the first flat plate portion 12a in a state where the first flat plate portion 12a can be slid back and forth. When the slope device 10 shown in FIG. 1 is stored in the vehicle 2, both the slope plate 12 and the tailgate portion 13 are held in an upright position near the rear opening 4. At this time, the first flat plate portion 12a is housed in the second storage plate portion 12b in a state of being overlapped with the second storage plate portion 12b. Then, as shown in FIG. 2, when the slope plate 12 is in the unfolded state, the first flat plate portion 12a is pulled out from the second storage plate portion 12b and tilted backward and downward together with the tailgate portion 13. Then, the slope plate 12 is in a deployed state in which the slope plate 12 is hung between the rear opening 4 of the vehicle 2 and the road surface, and the wheelchair or the like is placed between the passenger compartment 3 and the road surface using the slope plate 12 in the deployed state. You can get on and off at.

[Jack mounting structure]
On the floor side of the passenger compartment 3 shown in FIGS. 3 and 4, a pair of left and right side members 20 and 30, a rear floor 40, and a jack mounting structure JM are provided (carpets are omitted in each figure). And the passenger compartment 3 is illustrated). This jack mounting structure JM mounts and holds the jack JK on the mounting member 50 described later, and at the right position (right side) of the rear floor 40 located inside the specific side member (20) in the vehicle width direction. It is a structure that can be taken out and mounted on the part 42). In this type of jack mounting structure JM, it is desired to mount the jack JK on the rear floor 40 so as to ensure its take-out property and avoid scattering at the time of a rear collision of the vehicle as much as possible. Therefore, in this embodiment, the jack JK is mounted at an appropriate position on the rear floor 40 while ensuring its take-out property by a relatively compact configuration described later. Hereinafter, the configuration of the jack JK and each configuration of the jack mounting structure JM will be described in detail.

[jack]
The jack JK shown in FIGS. 4 and 5 is a pantograph type jack used for raising and lowering a vehicle of an automobile, and includes a base 2j, a seat 3j, a pantograph link 4j, and an operation spiral shaft 5j. The base 2j functions as a pedestal for supporting the jack JK, and is placed on a road surface located on the lower side when the jack JK is used. Further, the receiving seat 3j functions as a seat for receiving the vehicle (body) located on the upper side, and has a recess 33j that can be fitted into a protrusion (not shown) of the vehicle. Further, the pantograph link 4j is formed by arranging a pair of upper links 42j arranged in a C shape on a pair of lower links 41j arranged in an inverted C shape (on the right side in each figure). .. The lower link 41j and the upper link 42j are axially connected by front and rear connecting shaft portions 6j and 7j so that they can rotate relative to each other.

The pantograph link 4j shown in FIG. 5 can be operated by the operation spiral shaft 5j. Although difficult to see in the drawing, the operating spiral shaft 5j is formed as a spiral shaft extending in a rod shape along the axial direction (front-back direction in the figure) in which the lower link 41j and the upper link 42j extend, and the connecting shaft on the front side. It is screwed into the part 6j. Then, when the operating spiral shaft 5j is spirally rotated, the front connecting shaft portion 6j into which the operating spiral shaft 5j is screwed approaches or separates from the rear connecting shaft portion 7j. Therefore, the operating spiral shaft 5j is spirally rotated in the forward rotation direction so that the connecting shaft portions 6j and 7j are relatively close to each other. By doing so, the height of the pantograph link 4j (the left and right dimensions in the figure) becomes relatively large, and the height position of the seat 3j with respect to the base 2j can be increased. Further, the operation spiral shaft 5j is spirally rotated in the reverse direction to separate the connecting shaft portions 6j and 7j from each other. By doing so, the height of the pantograph link 4j becomes relatively small, and the height position of the seat 3j with respect to the base 2j can be lowered. The state in which the height position of the seat 3j is lowered with respect to the base 2j is an unused state of the jack JK, and the unused jack JK is mounted on the rear floor 40 by the jack mounting structure JM shown in FIG. The Rukoto.

[Side member]
Since the pair of side members (right side member 20, left side member 30) shown in FIG. 3 have substantially the same basic configuration except that they have a symmetrical shape, the right side member 20 is exclusively used as an example below. The details will be explained in. The right side member 20 shown in FIGS. 4 and 6 is a columnar member arranged on the right side of the vehicle 2, and corresponds to the side member of the present invention to which the mounting member 50 described later is fixed. The right side member 20 is bent in a crank shape in an upward view on the rear side of the vehicle, and has a front bending portion 20A located on the front side and a rear bending portion 20B located on the rear side as the bending starting points. is doing. The right side member 20 is formed with the front side portion 21, the bending portion 22, and the rear side portion 23, which will be described later, from the front to the rear, with the front and rear bent portions 20A and 20B as boundaries.

[Anterior site, posterior site, flexion site]
In the right side member 20 shown in FIGS. 4 and 6, the front side portion 21 located in front of the front bending portion 20A and the rear side portion 23 located behind the rear bending portion 20B extend substantially in the front-rear direction of the vehicle. .. The rear portion 23 is arranged on the right side of the front portion 21, and the rear end 23E is inserted into a hole H provided in the body at the rear end of the vehicle 2. The rear end 23E of the rear portion 23 is generally located at the rear end of the vehicle 2, and serves as a reference when setting the clearance with the jack described later. Further, the bending portion 22 is bent in the vehicle width direction (one direction) between the front bending portion 20A which is the bending starting point for the front side portion 21 and the rear bending portion 20B which is the bending starting point for the rear side portion 23. .. That is, the bent portion 22 is bent outward in the vehicle width direction (right side in each figure) between the front side portion 21 and the rear side portion 23, and gradually inclines to the right as the front bent portion 20A toward the rear bent portion 20B. ing.

[Vulnerable part]
Here, as shown in FIGS. 6 and 10, the right side member 20 has a hat cross section in which the outer side in the vehicle width direction (right side in each figure) is open, and the inner side surface 24 facing the inside of the vehicle and the upper side facing the upper side. It has a side surface 25 and a lower side surface 26 facing the lower side. Further, an upper flange portion 25a bent upward is formed at the right end of the upper side surface 25, and a lower flange portion 26a bent downward is formed at the right end of the lower side surface 26. Then, as shown in FIG. 6, the right side member 20 is formed with front and rear fragile portions 27 and 28 for promoting the deformation. The fragile portion 27 on the front side is composed of a plurality of (three in the figure) upper bead portions 27a, 27b, 27c formed on the upper side of the right side member 20. Each of the upper bead portions 27a to 27c is provided by deforming the corner portion between the upper side surface 25 and the upper flange portion 25a of the right side member 20 in a direction in which the corner portion is locally raised upward. Then, the upper bead portions 27a to 27c are formed in parallel in the front-rear direction on the upper side of the front bending portion 20A, so that the deformation of the bending portion 22 with respect to the front bending portion 21 is promoted. The fragile portion 28 on the rear side is composed of an inner bead portion 28a formed on the inner side surface 24 of the right side member 20. The inner bead portion 28a is provided by deforming the inner side surface 24 of the right side member 20 in a direction of locally denting to the right side, and is formed in a substantially vertically long rectangle. Then, the inner bead portion 28a is formed on the inner side surface 24 of the rear bending portion 20B, so that the deformation of the bending portion 22 with respect to the rear side portion 23 is promoted.

The right side member 20 shown in FIG. 3 is bent toward the right side at the bending portion 22, so that the portion from the bending portion 22 to the rear side portion 23 is input from the rear end (23E) of the vehicle. It can be deformed forward by the load F. Further, the left side member 30 is also bent in a crank shape toward the left side so as to be symmetrical with the right side member 20. That is, the left side member 30 has substantially the same basic configuration as the right side member 20, and is separated from another front side portion 31 and another bending portion 32 with a pair of front and rear bending portions 30A and 30B as boundaries. A posterior portion 33 is formed. Therefore, like the right side member 20, the left side member 30 can also be deformed to the front of the vehicle by the load F input from the rear end of the vehicle (the rear end 33E of another rear portion).

[Rear floor (center)]
The rear floor 40 shown in FIG. 3 is a plate material formed in a substantially trapezoidal shape when viewed upward, and the width is relatively narrow on the front side, but gradually widens toward the rear end. On the rear floor 40, a center portion 41 on which the slope device 10 (slope plate) is arranged and a pair of left and right side portions 42, 43 are formed. Here, the center portion 41 is a substantially rectangular portion formed between the front side portions 21 (31) of the left and right side members 20 (30), and forms most of the rear floor 40 and extends in the front-rear direction of the vehicle. .. The center portion 41 is a recessed portion that is relatively downwardly recessed, and side portions 42 and 43 that are one step higher than the center portion 41 are provided on the left and right sides of the center portion 41.

[Side part]
With reference to FIGS. 3 and 4, the left and right side portions (right side portion 42, left side portion 43) are one step higher than the center portion 41 as described above, and are on the right rear side of the rear floor 40. It is divided into the left rear side. Here, since the side portions 42 and 43 have substantially the same basic configuration except that they are symmetrical, the details will be described below by taking the right side portion 42 on the right rear side as an example. The right side portion 42 is a portion corresponding to the side portion of the present invention, and is formed between the portion of the right side member 20 from the bent portion 22 to the rear portion 23 and the center portion 41. The right edge of the right side portion 42 is bent in a stepped shape, and can be partially fixed to the portion of the right side member 20 shown in FIG. 6 from the inner side surface 24 to the upper side surface 25. The right side portion 42 shown in FIG. 3 is smaller in front, rear, left and right dimensions than the center portion 41, and is narrower. For example, the right side portion 42 of this embodiment has a relatively large width dimension W1 in the vehicle width direction on the rear side, but is narrower than the center portion 41, and as it goes further forward. The width dimension gradually becomes smaller. A flat plate-shaped side plate portion 420 shown in FIG. 4 is fixed and integrated on the right side plate portion 42, and a mounting member 50 described later is arranged on the side plate portion 420. ..

[Mounting member]
The mounting member 50 shown in FIGS. 4 and 7 is a plate-shaped member on which an unused jack JK can be mounted, and in this embodiment, the jack JK can be held via a holding bracket 60 described later. .. The mounting member 50 is formed in a substantially L-shaped cross section with the upper and left sides open, with reference to FIGS. 7 and 9, and the main body portion is formed by the bottom wall portion 51 and the right wall portion 52. It is formed and is further provided with an auxiliary wall portion 53. The placement position of the mounting member 50, which will be described later, can be defined by the placement position of the bottom wall portion 51 and the right wall portion 52 forming the main body portion, and the placement position of the auxiliary wall portion 53 does not have to be particularly considered. The right wall portion 52 is a vertical wall-like portion that stands up from the right edge of the bottom wall portion 51 (details will be described later), and a recessed position 52a for welding with the right side member 20 is formed on the front side thereof. .. Further, an upper flange 52b projecting toward the right side is formed on the upper edge of the right wall portion 52, and the upper flange 52b is arranged along the upper side surface 25 of the right side member 20.

Further, the bottom wall portion 51 is formed in a substantially triangular shape with the front side as the apex in the upward view with reference to FIGS. 7 and 9, and the left edge side thereof is gradually curved to the right as it goes forward. A reinforcing rib 511 projecting upward is formed on the left edge of the bottom wall portion 51 that curves outward. Further, the front side of the bottom wall portion 51 is raised one step higher than the rear side with the stepped portion 51a interposed therebetween, and can support the jack (pantograph link). Further, a substantially rectangular small piece portion 51b stands up from the left end of the bottom wall portion 51, and an interior material (not shown) can be fixed to the left surface of the small piece portion 51b. Further, a positioning piece 510 projects to the right on the front edge of the small piece portion 51b, and can be used for positioning the holding bracket 60, which will be described later. On the left side of the trailing edge of the bottom wall portion 51, an auxiliary wall portion 53 with the rear side as the apex is provided in an overhanging shape. Further, one positioning hole (51c, 53c) is provided in each of the front portion and the auxiliary wall portion 53 of the bottom wall portion 51, and each positioning hole 51c, 53c is used for welding and fixing to the right side portion 42. Can be positioned.

[Holding bracket]
The holding bracket 60 shown in FIGS. 4 and 8 is a plate material having a horizontal U-shaped cross section with the upper side open, from the bottom plate portion 61 arranged on the mounting member 50 and the left and right ends of the bottom plate portion 61. It has a right plate portion 62 and a left plate portion 63 that stand up. The bottom plate portion 61 has a substantially rectangular shape when viewed upward, and its front side is raised one step to match the lower shape of the jack JK laid sideways. On the left side of the front edge of the bottom plate portion 61, a stopper piece 610 that extends upward and then extends forward is provided. The stopper piece 610 is arranged at a position where it can come into contact with the base 2j of the jack JK, and over-movement of the jack JK to the front side can be restricted. Further, the front end of the stopper piece 610 is arranged at a position where it can come into contact with the positioning piece 510 of the mounting member 50, and can be used for positioning with respect to the mounting member 50.

Further, with reference to FIGS. 4 and 8, a jack JK laid sideways can be held between the right plate portion 62 and the left plate portion 63 in a state of being inserted from the front-rear direction of the vehicle. The right plate portion 62 is provided with a recessed portion 620 into which the seat 3j of the jack JK can be arranged, and the front and rear ends of the left plate portion 63 are dented to the left in accordance with the shape of the base 2j. Further, support flanges 62a and 63a projecting outward are formed on the upper edges of the right plate portion 62 and the left plate portion 63, respectively, and members such as tools (not shown) are formed by the support flanges 62a and 63a, respectively. ) Can be supported. Then, with reference to FIGS. 10 and 11, the vertical dimension H0 of the holding bracket 60 can be set with reference to the dimension H1 of the jack JK at the time of mounting. In this embodiment, the vertical dimension H0 of the holding bracket 60 can be set based on the dimension H1 of the jack JK laid sideways, which is shorter than the case where the vertically tilted jack (not shown) is mounted. It is possible to make it smaller and more compact.

[Arrangement work of mounting members (front fixing part, rear fixing part)]
With reference to FIG. 9, the mounting member 50 and the holding bracket 60 are arranged on the rear floor 40 (in FIG. 9, the holding bracket is shown by a two-dot dashed line for convenience). At this time, the mounting member 50 is arranged on the side plate portion 420 of the right side portion 42 while being along the bent portion 22 of the right side member 20. Further, the holding bracket 60 is tilted and positioned and arranged along the right side member 20 on the rear portion of the bottom wall portion 51 and the auxiliary wall portion 53. Then, the bottom wall portion 51 of the mounting member 50 is welded and fixed to the side plate portion 420 together with the holding bracket 60 located at the rear portion.

Further, the right wall portion 52 of the mounting member 50 is welded and fixed to the front fixing portion 71 and the rear fixing portion 72 provided at the bending portion 22. Here, the front fixing portion 71 is a welded portion set on the front bent portion 20A side, and is set on the inner side surface 24 and the upper side surface 25, respectively (in FIG. 9, the welded portion is indicated by a circle). Then, the front side of the mounting member 50 is fixed to the bent portion 22 by the recessed position 52a and the upper flange 52b of the right wall portion 52 by the front fixing portion 71. Further, the rear fixing portion 72 is a welding portion set on the rear bending portion 20B side, and is set on the inner side surface 24 and the upper side surface 25, respectively. Then, the rear side of the mounting member 50 is fixed to the bent portion 22 by the right wall portion 52 and the upper flange 52b by the rear fixing portion 72. As described above, in this embodiment, by fixing the mounting member 50 in front of and behind the bent portion 22 in a well-balanced manner, it is possible to smoothly follow the deformation of the right side member 20, which will be described later.

In this way, as shown in FIGS. 9 and 10, the main body portion (the portion excluding the auxiliary wall portion 53) of the mounting member 50 is closer to the bent portion 22 of the right side member 20 than the rear portion 23. It is placed on the front side of the vehicle. At this time, as shown in FIG. 10, the mounting member 50 is passed between the bent portion 22 and the side plate portion 420 of the right side portion 42 located on the right side thereof and fixed to them. The mounting member 50 is stably fixed to both the bent portion 22 and the right side portion 42, and the mounting member 50 further reinforces the portion between the right side member 20 and the right side portion 42. be able to. Then, referring to FIG. 9, by arranging the main body portion of the mounting member 50 at a position in front of the vehicle with respect to the rear side portion 23, a clearance between the jack and the rear end (23E) of the vehicle, which will be described later, is secured. It will be a composition that contributes to. In particular, in this embodiment, since the main body portion of the mounting member 50 is arranged between the front bending portion 20A and the rear bending portion 20B of the right side member 20, the above-mentioned clearance is more reliably secured. Is possible.

[Installation of jack]
Next, with reference to FIGS. 3 and 4, an unused jack JK laid sideways is inserted into the holding bracket 60 of the mounting member 50 from the front and back. At this time, the base 2j and the seat 3j are arranged between the right plate portion 62 and the left plate portion 63 of the holding bracket 60, and in this state, the operation spiral shaft 5j of the jack JK is spirally rotated in the forward rotation direction. By doing so, the height of the pantograph link 4j (the left and right lengths in the horizontal state) is increased, and the base 2j and the seat 3j are pressed against the right plate portion 62 and the left plate portion 63. By pressing the appropriate position of the jack JK against the holding bracket 60 in this way, the jack JK can be stably held while being mounted on the mounting member 50. Then, in the present embodiment, as shown in FIG. 10, the jacks JK laid sideways are arranged in parallel along the side plate portion 420 of the right side portion 42, so that an efficient space in the vehicle interior 3 is provided. Can be secured.

Then, as shown in FIGS. 3 and 4, the jack JK mounted on the mounting member 50 is in a state of being tilted to the right from the front to the rear along the bending portion 22, and fits well in the right side portion 42. Be placed. Further, the mounting member 50 is arranged at a position in front of the vehicle with respect to the rear portion 23 of the right side member 20 as described above. Therefore, as shown in FIGS. 3 and 11, the jack JK in the mounted state is mounted at an appropriate position on the right side portion 42 with a predetermined clearance C secured between the jack JK and the rear end (23E) of the vehicle 2. It becomes. Here, the clearance C between the jack JK and the rear end (23E) of the vehicle 2 can be set in consideration of the load F (the degree of deformation of the rear part of the vehicle) input at the time of the vehicle rear collision. Then, in this embodiment, as will be described later, the mounting member 50 is made to follow the deformation of the right side member 20, so that the above-mentioned clearance C is set smaller (narrower) than when the jack JK is in the inclined posture. It is possible. Further, in this embodiment, since the above-mentioned clearance C is secured by utilizing the deformation of the right side member 20 described later, a member that hinders the removal of the jack JK becomes unnecessary, which contributes to ensuring the removal property of the jack JK. It has become.

[Behavior of side members when the vehicle hits the rear]
With reference to FIGS. 3, 12, and 13, in the event of a vehicle rear collision, the load F input from the rear ends (23E, 33E) of the vehicle 2 is absorbed by the side members 20 and 30 being deformed. do. Since the behaviors of the side members 20 and 30 at the time of deformation are almost the same except that they are symmetrical, the behavior of the right side members 20 will be described below as an example. Since the right side member 20 shown in FIG. 12 is bent outward in the vehicle width direction at the bending portion 22, the portion from the bending portion 22 to the rear side portion 23 is deformed to the front of the vehicle by the load F. (In FIG. 12, for convenience, the side member being deformed is shown by a two-dot dashed line with a hatch). That is, in the right side member 20, the rear side portion 23 moves to the front side of the vehicle while receiving the load F from the axial direction thereof. Subsequently, the bent portion 22 receives the pressure of the rear bent portion 23 on the rear bent portion 20B side, so that the bent portion 22 is deformed to the front side while gradually tilting to the right starting from the front bent portion 20A. At this time, since the right side member 20 is deformed by the fragile portions 27 and 28 shown in FIGS. 6 and 9, the bent portion 22 is smoothly bent so as to be tilted toward the front side. Then, as shown in FIG. 13, the rear side portion 23 is in a state of being crushed back and forth, and the bending portion 22 is greatly tilted forward and to the right, so that the load input from the rear end (23E) of the vehicle 2 is applied to the right. It can be absorbed by the side member 20.

In the jack mounting structure JM shown in FIGS. 3 and 12, it is desired that the jack JK be mounted at an appropriate position on the rear floor 40 (right side portion 42) so as to avoid scattering at the time of a vehicle rear collision as much as possible. Therefore, the mounting member 50 of this embodiment is fixed to the right side member 20 and arranged at a position in front of the vehicle with respect to the rear side portion 23, so that the jack JK mounted via the mounting member 50 A predetermined clearance C is secured between the vehicle and the rear end (23E) of the vehicle. Further, the mounting member 50 is arranged at a position close to the bending portion 22 so as to be able to follow the deformation of the right side member 20. That is, in the jack mounting structure JM, the mounting member 50 is arranged together with the jack JK at a position close to the bending portion 22 to follow the deformation of the right side member 20, so that the clearance C is maintained as much as possible at the time of the rear collision of the vehicle. I'm supposed to do it. Therefore, the behavior of the mounting member 50 and the jack JK at the time of a vehicle rear collision will be described below.

With reference to FIG. 12, the mounting member 50 gradually moves forward along with the movement of the bending portion 22 together with the jack JK (in FIG. 12, for convenience, the following jack is provided with a hatch. (Illustrated by the two-dot dashed line). At this time, since the jack JK moves while tilting the rear side forward and to the right gradually, the clearance with the rear end (23E) of the vehicle 2 is maintained as much as possible. Then, as shown in FIG. 13, when the rear side portion 23 is in a state of being crushed back and forth and the bending portion 22 is greatly tilted forward, the jack JK is in a state of further tilting the rear side further forward and to the right. As a result, the clearance C with the rear end (23E) of the vehicle 2 is maintained as much as possible. In this way, in this embodiment, by utilizing the deformation of the right side member 20, a predetermined clearance C can be maintained as much as possible between the jack JK and the rear end (23E) of the vehicle 2 even in the case of a vehicle rear collision. It will be possible.

As described above, in the present embodiment, by arranging the mounting member 50 at a position in front of the vehicle rather than the rear portion 23 of the right side member 20, the jack JK mounted via the mounting member 50 is used. A predetermined clearance C is secured between the vehicle and the rear end (23E) of the vehicle. By arranging the mounting member 50 together with the jack JK at a position close to the bending portion 22, it is possible to follow the deformation of the right side member 20 toward the front side, and the above-mentioned clearance even in the case of a vehicle rear collision. C can be maintained as much as possible. In this way, in this embodiment, since the above-mentioned clearance C is secured by utilizing the deformation of the right side member 20, a member that hinders the removal of the jack JK becomes unnecessary, and the configuration contributes to ensuring the removal property of the jack JK. .. Further, in the present embodiment, since it is not necessary to secure the clearance C with the jack JK in an inclined posture, the jack JK can be arranged along the rear floor 40. Therefore, the mounting member 50 (holding bracket 60) can be made as compact as possible, and the structure contributes to the reduction of the cost (manufacturing cost). Therefore, according to the present embodiment, the jack JK can be mounted at an appropriate position on the rear floor 40 while ensuring its take-out property due to the relatively compact configuration.

Further, in this embodiment, the mounting member 50 can be fixed and stably arranged on both the right side member 20 and the rear floor 40 (side plate portion 420), and further, the mounting member 50 can be stably arranged. The 50 can reinforce the portion between the right side member 20 and the rear floor 40. Further, in the present embodiment, the mounting member 50 is arranged so as to be substantially fitted in the bent portion 22, so that the clearance C between the jack JK and the rear end (23E) of the vehicle can be more reliably secured. It becomes. Further, in the present embodiment, by fixing the mounting member 50 to the bent portion 22 in a well-balanced manner at the front and rear fixing portions 71 and 72, it is possible to reliably move the mounting member 50 by the right side member 20 at the time of deformation. Further, in this embodiment, since the deformation of the right side member 20 is promoted by the fragile portions 27 and 28, the clearance C between the jack JK and the rear end (23E) of the vehicle is increased when the right side member 20 is deformed. It can be reliably maintained. Further, on the rear floor 40 of this embodiment, a center portion 41 for arranging the slope plate is provided inside the right side member 20 in the vehicle width direction from the viewpoint of improving the convenience of the vehicle. Further, a right side portion 42 for arranging jacks is provided on the rear floor 40 between the right side member 20 and the center portion 41, but the right side portion 42 is relatively narrow due to the relationship with the center portion 41. It tends to be. Then, in this embodiment, by making the mounting member 50 relatively compact, it is possible to fit and arrange the jack JK well even if the right side portion 42 is relatively narrow.

The jack mounting structure of the present embodiment is not limited to the above-described embodiment, and various other embodiments may be adopted. In the present embodiment, the configuration of the jack mounting structure JM has been described by taking the right side member 20, the right side portion 42, and the mounting member 50 as an example, but it is not intended to limit the configuration of the same structure. For example, the jack mounting structure can be provided at an appropriate position at the rear of the vehicle. For example, when it is provided on the left side, the mounting member can be arranged using the left side member and the left side portion. Further, the mounting member may be configured to indirectly hold the jack by using a support bracket, or may be configured to directly hold the jack. Further, the mounting member does not necessarily have to be passed to and fixed to the side member and the rear floor, and may be arranged so as to protrude from each bent portion as long as it can follow the deformation of the side member. The mounting member may be arranged close to (including adjacent) from the vehicle width direction with respect to the bent portion, or may be arranged close to (including adjacent) from the vertical direction.

Further, in the present embodiment, the configuration of the side members (20, 30) is illustrated, but the purpose is not to limit the configuration of the side members. For example, the side member can be bent in an appropriate direction at the bending portion so as to allow the deformation. That is, the side member may be bent outward or inward in the vehicle width direction at the bent portion, or may be gradually bent upward as it goes backward as in the kick-up structure. When the bent portion is bent upward, the mounting member follows the bent portion that is deformed to the front side so as to gradually stand up due to the load at the time of the rear collision of the vehicle. The bent portion may be bent upward in the vehicle width direction toward the rear. Further, a plurality or a single fragile portion may be provided at an appropriate position of the side member, and may be formed of a hole portion or a thin-walled portion as well as a case where the fragile portion is composed of a bead portion. Further, the fixing portion can be set at an appropriate position where the mounting member can follow the deformation of the side member. The mounting member may be fixed to the side member at a plurality of fixing parts, or may be fixed to the side member at a single fixing part. Then, as a fixing method of the mounting member, in addition to a metallurgical joining method such as welding, a mechanical joining method such as fastening can be exemplified.

Further, in the present embodiment, the configuration of the rear floor 40 is illustrated, but it is not intended to limit the configuration of the rear floor. For example, in addition to the slope device (slope plate), a member such as a spare tire can be arranged in the center portion of the rear floor. Further, the configuration of the slope plate can be changed as appropriate. For example, it is possible to adopt a configuration in which a plurality of plate portions are stacked one above the other in the retracted state and the plurality of plate portions slide in the front-rear direction in the unfolded state. .. Further, the rear floor may be provided with a jack mounting structure, and the rear floor can be formed substantially flat when a member such as a slope plate is not installed.

JK Jack 2j Base 3j Receiving seat 33j Recess 4j Pantograph link 41j Lower link 42j Upper link 5j Operation spiral shaft 6j, 7j Connecting shaft 2 Vehicle 3 Vehicle interior 4 Rear opening 5 Back door 10 Slope device 12 Slope plate 12a No. 1 Flat plate 12b 2nd storage plate 13 Tailgate 400 Carpet JM jack mounting structure 20 Right side member (side member of the present invention)
20A Front bending part 20B Rear bending part 21 Front part 22 Bending part 23 Rear part 23E Rear end of rear part (rear end of vehicle)
24 Inner side surface 25 Upper side surface 25a Upper flange part 26 Lower side surface 26a Lower flange part 27 Front side fragile parts 27a, 27b, 27c Upper bead part 28 Rear side fragile part 28a Inner bead part 30 Left side members 30A, 30B Another bending Part 31 Another front part 32 Another bending part 33 Another posterior part 33E Another rear part rear end 40 Rear floor 41 Center part 42 Right side part (side part of the present invention)
43 Left side part 420 Side plate part 50 Mounting member 51 Bottom wall part 51a Step part 51b Small piece part 510 Positioning piece 511 Reinforcing rib 51c, 53c Positioning hole 52 Right wall part 52a Recessed position 52b Upper flange 53 Auxiliary wall part 60 Holding Bracket 61 Bottom plate 62 Right plate 620 Recessed part 63 Left plate 610 Stopper pieces 62a, 63a Support flange 71 Front fixing part 72 Rear fixing part

Claims (6)

In a vehicle jack mounting structure in which a jack for raising and lowering a vehicle is mounted on a mounting member and held, and the side member is mounted on a rear floor arranged inside in the vehicle width direction so as to be removable.
The side member has a front side portion and a rear side portion extending in the front-rear direction of the vehicle on the rear side of the vehicle, and a bending portion located between the front side portion and the rear side portion, and the vehicle width at the bending portion. Bent in at least one direction and upwards
The above-mentioned mounting member is a jack mounting structure for a vehicle, which is fixed to the side member and arranged in a state close to the bent portion and on the front side of the vehicle with respect to the rear portion. The jack mounting structure for a vehicle according to claim 1, wherein the mounting member described above is passed to and fixed to the side member and the rear floor from the vehicle width direction. The bent portion is bent in one direction between a front bent portion serving as a bending starting point with respect to the front portion and a rear bending portion serving as a bending starting point with respect to the posterior portion.
The jack mounting structure for a vehicle according to claim 1 or 2, wherein the pre-described mounting member is fixedly arranged between the front-bent portion and the rear-bent portion. The third aspect of the present invention, wherein the pre-described mounting member is fixed to the bending portion at a front fixing portion provided on the front bending portion side and a rear fixing portion provided on the rear bending portion side. Vehicle jack mounting structure. The vehicle jack mounting structure according to any one of claims 1 to 4, wherein the side member is provided with a fragile portion that promotes its deformation. The rear floor is provided with a center portion on the inside of the side member in the vehicle width direction, in which a slope plate that can be hung between the vehicle and the road surface is arranged.
The jack mounting structure for a vehicle according to any one of claims 1 to 5, wherein a side portion on which a jack mounted on the above-mentioned mounting member is arranged is provided between the side member and the center portion. ..

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