JP5458079B2 - Vehicle rear structure - Google Patents

Description

  The present invention relates to a vehicle rear structure.

  In order to mount a large luggage, a wheelchair on which a cared person rides, etc. in the space at the rear of the vehicle, there is a vehicle that can lower the slope from the rear opening of the vehicle to the rear of the vehicle (see Patent Documents 1 and 2). In the vehicle described in Patent Document 1, the slope is stored in an inverted state by being bent in a mountain or valley. In the vehicle described in Patent Document 2, the slide slope is coupled to the vehicle body via a hinge pin fitted in a pair of left and right guide grooves extending in the vehicle front-rear direction. The slide slope is placed on the floor surface of the passenger compartment when stored, and is unfolded after being slid rearward of the vehicle and placed on the road surface or the like when used.

Japanese Patent No. 3982152 Japanese Patent No. 4000548

  However, in the vehicle described in Patent Document 1, since the slope is stored only in an inverted state, the front-rear width of the vehicle rear space is narrowed. In addition, the vehicle described in Patent Document 2 requires a pair of left and right guide grooves extending in the vehicle front-rear direction, which complicates the structure and reduces the vehicle rear space.

  Therefore, it is conceivable that the slide slope supported rotatably at the rear end of the vehicle is moved forward and placed on the floor. In this case, the slide slope is applied when the forward acceleration acts on the slide slope. Tries to expand forward in the passenger compartment.

  The present invention has been created in view of the above circumstances, and it is an object of the present invention to provide a vehicle rear structure capable of preventing a slide slope from expanding forward in a vehicle interior while securing a vehicle rear space. And

  In order to solve the above-mentioned problems, the present invention has an N-stage slide slope having an N-stage (N ≧ 2) slope, and a first-stage slope pivotally supported on the lower side of the rear opening of the vehicle body. A catcher provided on the floor of the vehicle body, wherein the N-stage slide slope is rotated to the rear of the vehicle body and the N-stage slope is developed to constitute a slope for movement to the ground. And the second state in which the N-stage slope is stored and placed on the floor, and is switched to the N-stage of the N-stage slide slope. The eye slope is provided with a striker, and when the forward acceleration is applied to the N-stage slide slope in the second state, the striker comes into contact with the catcher, so that the N-stage Expression Sly Forward movement of the N-th stage of the slope of the slope, characterized in that it is regulated.

According to this configuration, the first slope of the slide slope is pivotally supported on the lower side of the rear opening of the vehicle body, and the slide slope can be placed on the rear floor in the second state. The slide slope can be assembled to the vehicle with a simple structure while securing a space.
Further, a striker and a catcher are provided, and when a forward acceleration is applied to the slide slope in the second state, the striker comes into contact with the catcher, so that the slide slope can be prevented from jumping forward. .

  The N-stage slide slope is superposed such that N ≧ 3 and the n-th slope (2 ≦ n ≦ N) is slidable on the n−1-th slope. In the second state, the first slope is the lowermost or uppermost stage, the Nth slope is the uppermost or lowermost stage, and the middle slope is provided with a stopper, respectively. When a forward acceleration acts on the N-stage slide slope in the second state, the stopper provided on the m-th slope (2 ≦ m ≦ N−1) is the base end of the m + 1-th slope. It is desirable to have a configuration in which the forward movement of the middle slope is restricted by abutting on.

  According to this configuration, since the stopper is provided, the middle slope can be prevented from jumping forward.

  The N-stage slide slope is coupled to a rear cross member of a vehicle body via a hinge, and the floor is formed with a bent portion having a convex shape in a side view, and the second state The catcher and the striker are preferably spaced apart from each other.

  According to such a configuration, since the striker and the catcher are separated from each other in the second state, the impact energy can be suitably absorbed without disturbing the bending of the floor due to the rear collision.

  Further, the vehicle rear structure preferably includes a belt that connects the floor of the vehicle body and the uppermost slope in the second state.

  According to this configuration, it is possible to prevent the slide slope from fluttering during traveling on a rough road by the belt.

  Moreover, it is preferable that the vehicle rear portion structure includes a buffer member provided on the floor, on which a lowermost slope of the N-stage slide slope in the second state is placed.

  According to this configuration, since the buffer member is provided, it is possible to prevent the slide slope from coming into direct contact with the rear floor. Further, when the slide slope is fixed by the belt, the loosening prevention effect (backlash and tolerance absorption) is exhibited by the elastic force of the buffer member.

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that a slide slope expand | deploys ahead in a vehicle interior, ensuring a vehicle rear part space.

1 is a side view schematically showing a vehicle according to an embodiment of the present invention. It is a top view which shows the expansion | deployment state of the slide slope which concerns on embodiment of this invention. (A) is X sectional view taken on the line of FIG. 2, Comprising: It is a sectional side view which shows the expansion | deployment state of a slide slope, (b) is the elements on larger scale of (a). (A) is X sectional view taken on the line of FIG. 2, Comprising: It is a sectional side view which shows the accommodation state of a slide slope, (b) is the elements on larger scale of (a), (c) is (a). It is a Y arrow sectional drawing. It is a fracture | rupture perspective view which shows the state immediately before accommodation of a slide slope. It is a side view which shows the slide slope accommodated in the 2nd state. (A) is a perspective view which shows a slide slope and a catcher, (b) is Z arrow sectional drawing of (a). It is a perspective view which shows the slide slope accommodated in the 2nd state. It is a perspective view which shows a slope fixing belt. (A) is a partially broken side view showing the slide slope, catcher, rear floor and rear cross member at the time of the front collision, and (b) is a part showing the slide slope, catcher, rear floor and rear cross member at the time of the rear collision. FIG. It is a side view which shows the locus | trajectory of the slide slope and striker at the time of front collision and rear collision.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 1, a vehicle 1 to which a vehicle rear structure according to an embodiment of the present invention is applied includes a floor 10, a pair of left and right front seats 20, 20, a pair of left and right rear seats 30, 30, A pair of electric winches 40 and 40 and a slide slope 50 are provided. FIG. 1 shows the left front seat 20, rear seat 30 and electric winch 40 out of the pair of left and right front seats 20, 20, rear seats 30, 30 and electric winches 40, 40.

<Floor>
The floor 10 constitutes a floor surface of the passenger compartment, and includes a front floor 11, a mid floor 12, and a rear floor 13 in order from the front to the rear. A pair of left and right front seats 20, 20 are disposed on the front floor 11, and a pair of left and right rear seats 30, 30 are disposed on the mid floor 12. The rear floor 13 is used as a luggage space at the rear of the passenger compartment when the rear seat 30 is used. The front floor 11, the mid floor 12 and the rear floor 13 are fixed to each other by bolts, welding or the like. In addition, a recess 10 a is formed in the floor 10 between the front seat 20 and the rear seat 30, that is, from the rear end of the front floor 11 to the front end of the mid floor 12. A convex portion 10b is formed at the front end of the front floor 11, and a fuel container 2 is provided below the convex portion 10b. In addition, the rear floor 13 has a flat surface at the front and an inclined surface that decreases as the rear portion goes back, and a bent portion 13a that protrudes upward between the front portion and the rear portion (FIG. 10A). Reference) is formed.

<Front seat>
The pair of left and right front seats 20 and 20 are a driver seat and a passenger seat, and are provided on the convex portion 10 b of the front floor 11.

<Rear seat>
The pair of left and right rear seats 30 and 30 (in the figure, with the headrest removed) are provided on the mid floor 12. The rear seats 30 and 30 are configured so that they can be stored (so-called dive-in) in a recess 10a formed at the front lower side. In the present invention, “the rear seat 30 can be stored in the recess 10 a” means “the entire rear seat 30 is moved forward and downward while the seat back of the rear seat 30 is tilted forward, and at least a part of the rear seat 30 is recessed. 10a ".

<Electric winch>
The pair of left and right electric winches 40, 40 are winches for pulling the wheelchair into the rear space of the passenger compartment, for example, and are provided between the front floor 11 and the front seat 20, respectively. The pair of left and right electric winches 40, 40 operate using a battery (not shown) of the vehicle 1 as a power source.

<Slide slope>
The slide slope 50 is provided at the rear end of the vehicle compartment, that is, in the vicinity of the vehicle body rear opening 5 (see FIG. 8) that can be opened and closed by the back door 3, and the lower side 5a of the vehicle rear opening 5 (that is, the rear shown in FIG. 10). The cross member 14) is pivotally supported via a pair of left and right hinge brackets HB, HB. In use, the slide slope 50 is deployed by being tilted backward from the opening of the back door of the vehicle 1 (first state). Further, when not in use, the slide slope 50 is stored in a state of being erected in the vicinity of the back door 3, or is stored in a state where it is placed on the rear floor 13 by being tilted to the vehicle compartment side (second state). It is also possible. Further, in the inverted state when not in use, the slide slope 50 can be fixed to the left and right sides 5b, 5b of the vehicle body rear opening 5 by a lock device (not shown).

Here, with reference to FIGS. 2 to 4, will be described in detail slide slope 50. As shown in FIG. 2, the slide slope 50 is a three-stage slide slope, and the base end (the end portion on the hinge bracket HB side which is a rotation shaft) is against the lower side 5 a of the vehicle body rear opening 5 (see FIG. 8). 1st slope 51 attached so that rotation is possible, the 2nd slope 52 provided so that sliding with respect to the upper surface at the time of deployment of the 1st slope 51, and slidable with respect to the upper surface at the time of deployment of the 2nd slope 52 And a third slope 53 provided in the. A handle 54 (see FIG. 8) is provided on the front end side of the upper surface of the first slope 51 in the second state.

  The first slope 51 is the lowermost slope in the first state and the uppermost slope in the second state, and includes a plate 51a that is a slope body and rails 51b provided on the left and right sides of the plate 51a. , 51b.

  The second slope 52 is a middle slope in the first state and the second state, and includes a plate 52a that is a slope body, and rails 52b and 52b provided on the left and right sides of the plate 52a. The convex part 52b1 formed in the outer side of the rail 52b is slidably fitted in the concave part 51b2 formed in the rail 51b of the first slope 51 (see FIG. 4C). In addition, a convex portion 52a1 is formed on the lower surface base end (rotating shaft side end portion) side of the plate 52a in the first state, and when the plate 52a is unfolded, the convex portion 52a1 is the upper surface of the plate 51a in the first state. By engaging with the claw 51a2 formed on the distal end side, the plate 52a is prevented from coming out of the plate 51a (see FIG. 3).

  The third slope 53 is the uppermost slope in the first state and the lowermost slope in the second state, and includes a plate 53a and rails 53b and 53b provided on the left and right sides of the plate 53a, Is provided. The convex portion 53b1 formed on the outer side of the rail 53b is slidably fitted in the concave portion 52b2 formed on the rail 52b of the second slope 52 (see FIG. 4C). Further, a convex portion 53a1 is formed on the lower surface base end (rotation shaft side end portion) side of the plate 53a in the first state, and when the plate 53a is unfolded, the convex portion 53a1 is the upper surface of the plate 52a in the first state. By engaging with the claw 52a2 formed on the distal end side, the plate 53a is prevented from coming out of the plate 52a (see FIG. 3).

  In addition, an extension portion 53b3 that extends outwardly from the vehicle 1 is formed on the upper surface (the lower surface in the second state) of the rail 53b in the first state (see FIG. 4C). The striker 55 shown in FIGS. 6 and 7 is provided in the portion 53b3. The striker 55 is a metal plate-like member fixed to the extension portion 53b3 by, for example, two bolts B and B. The striker 55 is provided so as to further extend to the outside of the vehicle 1 from the extending portion 53b3.

  Moreover, the stopper 56 is provided in the base end (rotation shaft side edge part) side of the recessed part 52b2 of the 2nd slope 52 which is an intermediate slope.

  Further, a handle 57 is provided on the tip side of the upper surface of the plate 53a of the third slope 53 in the first state.

<Catcher and cushioning member>
As shown in FIG. 6, the vehicle 1 includes a pair of left and right catchers 110 and 110 and a pair of left and right buffer members 120 and 120.

  The pair of left and right catchers 110 and 110 includes a pedestal 111 and a protrusion 112. The pedestal 111 is fixed on the front end of the rear floor 13 having a horizontal surface by bolts or the like. The protrusion 112 is erected from the pedestal 111, and the distance (inner space) between the pair of left and right protrusions 112, 112 is larger than the distance between the pair of left and right extension parts 53 b 3, 53 b 3 of the slide slope 50. . That is, the pair of left and right projections 112 and 112 are disposed in front of the pair of left and right strikers 55 and 55, respectively. A protrusion 112 a that prevents the striker 55 in contact with the rear surface of the protrusion 112 from being pulled upward is formed on the rear surface of the upper end of the protrusion 112.

  The pair of left and right shock absorbing members 120 and 120 are cushion materials provided on the base portion 111 of the catcher 110. The upper surfaces of the pair of left and right buffer members 120, 120 have a rearward inclined surface.

In the second state, the lower surface of the slide slope 50, more specifically, the distal end side of the extending portion 53 b 3 of the rail 53 b of the third slope 53 is placed on the buffer member 120. In such a state, the projection 112 of the catcher 110 is disposed in front of the striker 55.

  As shown in FIG. 8, the vehicle 1 further includes a pair of left and right return springs 81, 81, a slope operation belt 82, and a slope fixing belt 83. The pair of left and right return springs 81, 81 are provided between the slide slope 50 and the lower side 5 a of the vehicle body rear opening 5, and are fixed to the lower side 5 a of the vehicle body rear opening 5 in this embodiment. The slope operation belt 82 is attached to the handle 54 of the slide slope 50. The slope fixing belt 83 is provided on the mid floor 12 and is locked to the handle 54 of the slide slope 50 placed on the rear floor 13 to prevent the slide slope 50 from swinging (turning) while the vehicle is running. .

  As shown in FIG. 9, the slope fixing belt 83 includes a stay 83a fixed to the mid floor 12 by bolts, a belt main body 83b fixed to the stay 83a, and a buckle 83c for adjusting the belt length of the belt main body 83b. And a hook 83d that is provided at the tip of the belt body 83b and can be locked to the handle 54.

<Second state → First state>
When the slide slope 50 is used, the user rotates the slide slope 50 out of the passenger compartment by operating the slope operation belt 82 attached to the slide slope 50 stored in the second state. The second slope 52 and the third slope 53 are slid by holding the handle 57 and pulling backward, and the slide slope 50 is developed and lowered outside the passenger compartment.

<First state → Second state>
On the other hand, when the slide slope 50 is stored in the passenger compartment in the second state, the user holds the handle 57 of the slide slope 50 deployed in the first state and pushes it forward to thereby move the second slope. 52 and the third slope 53 are slid to house the slide slope 50, and the housed slide slope 50 is rotated into the vehicle compartment and placed on the rear floor 13. At this time, since the pair of return springs 81 and 81 urge the slide slope 50 upward, the user can easily lift the slide slope 50. Thereafter, the user locks the hook 83 d of the slope fixing belt 83 to the handle 54.

<Operation example>
Subsequently, a case where a forward acceleration is applied to the slide slope 50 of the vehicle 1 according to the embodiment of the present invention will be described with reference to FIGS. 10 and 11. Here, as shown in FIG. 10, the vehicle 1 includes a rear cross member 14 and cross members 15 and 16. The rear cross member 14 includes an upper member 14a formed integrally with the rear end of the rear floor 13, and a lower member 14b made of a metal member having a hat shape in cross section joined to the lower surface of the upper member 14a by welding or the like. . The cross member 15 is a metal member having a hat shape in sectional view joined to the lower center surface of the inclined surface of the rear floor 13 by welding or the like. The cross member 16 is a metal member having a hat shape in a sectional view joined to the lower surface of the front end side of the inclined surface of the rear floor by welding or the like. The left and right ends of the rear cross member 14 and the cross members 15 and 16 are a pair of rear frames 17 and 17 (only one is shown in FIG. 10 respectively) provided on the left and right sides of the vehicle 1. Is omitted). In the present embodiment, a bent portion 17a having a convex shape upward in a side view is formed in the vicinity of the striker 55 and the catcher 110 of the pair of left and right rear frames 17 and 17, in the present embodiment, in front of the catcher 110. The rear side of the 17 bent portions 17a is a slightly rearwardly inclined surface. The pair of left and right hinge brackets HB, HB are coupled to the front end of the rear cross member 14 by bolts or the like. Further, the bent portion 13a of the rear floor 13 is formed in the vicinity of the striker 55 and the catcher 110 in the second state. More specifically, the striker 55 in the second state is disposed behind the bent portion 13a, and the catcher 110 is disposed in front of the bent portion 13a.

<When vehicle 1 collides forward>
As shown in FIG. 10A and FIG. 11, when the vehicle 1 moves forward and collides with a front object in a state in which the slide slope 50 is stored in the second state, that is, when it collides forward. Forward acceleration acts on the slopes 51 to 53 of the slide slope 50. Here, since the base end (end portion on the rotating shaft side) of the first slope 51 is fixed to the lower side 5a of the rear opening of the vehicle 1 by the hinge H, the relative movement with respect to the vehicle body is restricted. The third slope 53 slides with respect to the second slope 52 and tries to move forward, but the pair of left and right strikers 55 and 55 provided on the third slope 53 are paired with the left and right catchers 110 and 110. The forward relative movement with respect to the vehicle body is restricted when the projections 112 and 112 abut each other. The second slope 52 is slid with respect to the first slope 51 and moves forward. The pair of left and right stoppers 56, 56 provided on the second slope 52 is a pair of right and left of the third slope 53. When the rails 53b and 53b are in contact with the base ends (end portions on the rotation shaft side) of the rails 53b, the relative movement forward with respect to the vehicle body is restricted.

<When vehicle 1 crashes back>
As shown in FIGS. 10B and 11, when the vehicle 1 moves backward and collides with a rear object in the state where the slide slope 50 is stored in the second state, an object from the rear is applied to the stopped vehicle 1. When the vehicle collides, that is, when it collides rearward, the rear floor 13 of the vehicle 1 is deformed so as to be crushed in the front-rear direction at the bent portion 13a, and the pair of left and right rear frames 17 are crushed in the front-rear direction at the bent portion 17a. It deforms as follows. Here, since the bent part 13a of the rear floor 13 and the bent part 17a of the pair of left and right rear frames 17, 17 are convex upward in a side view, the rear end side of the rear floor 13 and the rear frames 17, 17 is The slide slope 50 is deformed in the downward folding mode, and the posture of the slide slope 50 is changed so as to stand up against the locking by the slope fixing belt 83 (see FIG. 9) as the rear floor 13 and the rear frames 17 and 17 are deformed. . Therefore, even if the hinge H and the catcher 110 come close to each other due to the deformation of the rear floor 13, the pair of left and right strikers 55 and 55 of the slide slope 50 do not contact the protrusions 112 and 112 of the pair of left and right catchers 110 and 110. As seen relatively, it passes above the protrusions 112 and 112 (L11 in FIG. 11). Therefore, at the time of rear impact, the barrier stroke of the slide slope is expanded, and furthermore, the pair of left and right strikers 55 and 55 of the slide slope 50 do not contact the projections 112 and 112 of the pair of left and right catchers 110 and 110. Since the deformation of the bent portions 13a and 17a of the rear floor 13 and the rear frames 17 and 17 is not hindered, the tip of the slide slope 50 can move relative to the pair of left and right catchers 110 and 110 ( In FIG. 11, L12), the impact energy due to the rear impact is suitably absorbed.

In the vehicle 1 according to the embodiment of the present invention, the first slope 51 of the slide slope 50 is pivotally supported on the lower side of the rear opening of the vehicle body and can be placed on the rear floor 13. Thus, the slide slope 50 can be assembled to the vehicle with a simple structure.
In addition, since the vehicle 1 according to the embodiment of the present invention includes the striker 55 and the catcher 110, when the forward acceleration is applied to the slide slope 50 due to the front collision in the second state, the striker 55 becomes the catcher 110. Therefore, the slide slope 50 can be prevented from jumping forward.
Further, since the vehicle 1 according to the embodiment of the present invention includes the stopper 56, the middle slope can be prevented from jumping forward.
Further, in the vehicle 1 according to the embodiment of the present invention, since the striker 55 and the catcher 110 are separated from each other in the second state, the bending of the rear floor 13 and the like due to the rear impact is not disturbed, and the impact energy is suitably absorbed. can do.
In addition, the vehicle 1 according to the embodiment of the present invention can prevent the slide slope 50 from fluttering while traveling on a rough road by the slope fixing belt 83.
In addition, since the vehicle 1 according to the embodiment of the present invention includes the buffer member 120, the slide slope 50 can be prevented from coming into direct contact with the rear floor 13. Further, when the slide slope 50 is fixed by the slope fixing belt 83, the loosening prevention effect (backlash and tolerance absorption) is exhibited by the elastic force of the buffer member 120.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the summary of this invention, it can change suitably. For example, the number of slopes is not limited to three, and the direction in which the slopes are overlapped may be the first slope 51, the second slope 52, and the third slope 53 in order from the bottom in the second state. Further, the buffer member 120 may be provided at a place different from the striker 55. That is, the present invention can be applied to an N-stage slope (N is an integer of 2 or more), and the first-stage slope is pivotally supported on the lower side of the rear opening of the vehicle body, What is necessary is just the structure provided with the striker. When N is an integer equal to or greater than 3, the stopper provided on the m-th slope (2 ≦ m ≦ N−1) is the base end (rotation shaft side end) of the m + 1-th slope. By abutting on, the forward movement of the middle slope can be restricted.

DESCRIPTION OF SYMBOLS 1 Vehicle 5 Car body rear part opening 5a Lower side 10 Floor 13 Rear floor 13a Bending part 50 Slide slope 51 1st slope 52 2nd slope 53 3rd slope 55 Strike 56 Stopper 83 Slope fixing belt (belt)
110 catcher 120 cushioning member

Claims (5)

An N-stage slide slope having an N-stage (N ≧ 2) slope, the first-stage slope being pivotally supported on the lower side of the rear opening of the vehicle body;
A catcher on the floor of the car body,
With
The N-stage slide slope is
A first state in which the N-stage slope is rotated to the rear of the vehicle body to form a slope for movement to the ground;
A second state in which the N-stage slope is housed and placed on the floor while being rotated into the vehicle interior;
Can be switched,
The N-stage slope of the N-stage slide slope is provided with a striker,
When a forward acceleration is applied to the N-stage slide slope in the second state, the striker comes into contact with the catcher to move the N-stage slide slope forward of the N-th slope. A vehicle rear structure characterized in that movement is restricted. The N-stage slide slope is superposed so that N ≧ 3 and the n-th slope (2 ≦ n ≦ N) is slidable on the n−1-th slope.
In the second state, the first-stage slope is the lowermost stage or the uppermost stage and the N-th slope is the uppermost stage or the lowermost stage,
The middle slope is provided with a stopper,
When forward acceleration acts on the N-stage slide slope in the second state, the stopper provided on the m-th slope (2 ≦ m ≦ N−1) is the m + 1-th slope. The vehicle rear portion structure according to claim 1, wherein the forward movement of the middle slope is regulated by contacting the base end. The N-stage slide slope is coupled to the rear cross member of the vehicle body via a hinge,
The floor is formed with a bent portion having a convex shape in a side view,
The vehicle rear portion structure according to claim 1 or 2, wherein in the second state, the catcher and the striker are separated from each other. The vehicle rear part structure according to any one of claims 1 to 3, further comprising a belt that connects a floor of the vehicle body and an uppermost slope in the second state. 5. The shock absorber according to claim 1, further comprising: a buffer member provided on the floor, on which a lowermost slope of the N-stage slide slope in the second state is placed. The vehicle rear structure as described in.

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