JP5172220B2 - Vehicle slide deck device - Google Patents

Description

  The present invention relates to a slide deck device provided on a bottom plate of a luggage room of a vehicle including a back door.

As a prior art of the slide deck apparatus in a vehicle, there exists what was disclosed by patent document 1, for example.
The slide deck device of Patent Document 1 includes a pair of left and right guide rails 6 that are fixed to the bottom of a luggage room formed at the rear of a vehicle body, and a flat luggage floor 4 that covers the upper surfaces of the left and right guide rails 6. And.
The guide rail 6 has a channel shape in which a side surface outside the vehicle is open. Further, on the outer surface of the rear end portion of the left and right guide rails 6, there are provided rollers 8 that can rotate around the rotation axis in the vehicle width direction and cannot move in the front-rear direction with respect to the guide rails 6.
A pair of left and right brackets 4a protrude downward from the front end portion of the lower surface of the luggage floor 4, and the left and right brackets 4a are provided with rollers 7 that can rotate about a rotation axis in the vehicle width direction.

The left and right rollers 7 are respectively located inside the left and right guide rails 6 and are in contact with the bottom surface of the guide rail 6. Furthermore, since the left and right rollers 8 support the lower surface of the luggage floor 4, the luggage floor 4 can slide in the front-rear direction along the left and right guide rails 6.
Therefore, if the luggage floor 4 on which the load is placed is pulled out backward with the back door provided on the back of the vehicle open (see the phantom line in FIG. 1), the load can be pulled out to the rear of the vehicle. It is.
JP 2002-87166 A

When another vehicle collides with the rear portion of the vehicle of Patent Document 1, the impact is transmitted to the bottom of the luggage room (the portion to which the left and right guide rails 6 are fixed) via the vehicle body. Therefore, when the impact at this time is large, there is a possibility that deformation or cracks may occur at the bottom of the luggage room.
However, the slide deck device of Patent Document 1 has not been devised to prevent such a problem.

  The object of the present invention is to effectively prevent cracks and deformations from occurring in the bottom plate of the luggage room to which the rail for slidably supporting the load placing plate is fixed even when another vehicle has collided. It is providing the slide deck apparatus for vehicles.

The slide deck device for a vehicle of the present invention, the luggage room of the bottom plate on the vehicle including a back door, and fixed via a plurality of brackets arranged in the longitudinal direction, a channel shape extending in the longitudinal direction, between the bottom plate A pair of left and right lower rails that form a gap in the vertical direction, and a load placement plate that is slidable with respect to the left and right lower rails. It is characterized in that a weakened portion is formed and has low rigidity against buckling compared to other portions.

  The lower rail includes a bottom plate portion, a pair of left and right side wall portions extending upward from both left and right end portions of the bottom plate portion, and a pair of left and right upper surface portions extending substantially horizontally inward from the upper ends of the left and right side wall portions, A pair of left and right upper rails that slidably fit to the left and right lower rails, and supports the upper rail and the luggage placement plate in the lower rails. However, it is preferable that the fragile portion be a through hole formed in the side wall portion of the lower rail.

  It is preferable to form a notch which is a constituent element of the fragile portion in the lower edge portion of the through hole.

  A locking member that slides together with the load placement plate and that can move between a locked position and an unlocked position is provided. It is preferable to fix a member to be locked having a lock hole that is engageable with the lock member that is positioned and cannot be engaged with the lock member that is positioned at the unlock position.

For example, when another vehicle collides with the rear part of the vehicle, this collision load is transmitted to the left and right lower rails via the bottom plate of the luggage room and the brackets. Since the rigidity of the lower rail according to the present invention is the smallest at the portion where the weak portion is formed, the lower rail is buckled from the portion where the weak portion is formed by the collision load.
Since the lower rail effectively absorbs the energy of the collision load by buckling in this way, it is possible to prevent the bottom plate of the luggage room from being deformed or cracked.

When the lower rail includes a bottom plate portion, a pair of left and right side wall portions, and a pair of left and right upper surface portions extending inward from the upper ends of the left and right side wall portions, the bottom plate portion penetrates as a fragile portion. When the hole is formed, the through hole prevents the roller from rolling. Furthermore, since the load of the upper rail and the luggage placing plate is applied from the roller to the bottom plate portion, if the rigidity of the bottom plate portion is reduced by providing the through hole, the bottom plate portion may be damaged by the load applied from the roller. Further, when the through hole is formed in the upper surface portion, the rigidity of the entire lower rail is lowered as compared with the case where the through hole is formed in the side wall portion or the bottom plate portion.
However, when the through hole is formed in the side wall as in the second aspect, such a problem does not occur.

  According to the invention of claim 3, the lower rail has the smallest rigidity in the portion where the through hole is formed, but particularly the rigidity in the portion where the notch is provided is the smallest, so the lower rail causes buckling from the portion where the notch is provided. It becomes easy. Therefore, the buckling start point of the lower rail can be controlled with higher accuracy.

  According to the fourth aspect of the present invention, since the rigidity of the portion where the locked member is fixed in the lower rail is larger than that of the other portions, the possibility that buckling starts from the portion where the locked member is fixed is extremely high. small. Therefore, it becomes easy to make the buckling start point of the lower rail the part where the weak part is formed.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the front-back direction and the left-right direction in description of this embodiment are based on the arrow-line direction described in the figure.
A rear opening 11 is formed on the rear surface of the vehicle 10, and an upper edge of the back door 12 having the same front shape as the rear opening 11 is formed on the upper edge of the rear opening 11 around the rotation axis in the left-right direction. It is pivotally attached as a rotatable. Further, a metal bumper BP is provided immediately below the rear opening 11 of the vehicle 10.
The vehicle 10 has two rows of front and rear seats (reference numeral 13 shown in FIG. 1 is a second row seat), and the rear of the second row seat 13 is a luggage room 14. On the upper surface of the metal bottom plate 15 constituting the bottom surface of the luggage room 14, there is provided a slide deck device 20 for sliding the loaded luggage in the front-rear direction.

The slide deck device 20 has a structure described below.
The slide deck device 20 includes a pair of left and right lower rails 25 as major components, a slide unit 50 that is slidable in the front-rear direction with respect to the left and right lower rails 25, a luggage placement plate 115 fixed to the upper surface of the slide unit 50, It has.
As shown in FIG. 6, the front end support portion 16 that forms the front end portion of the bottom plate 15 and the rear end support portion 17 that forms the rear end portion protrude upward from the center portion (flat portion). The front surface of each is an inclined mounting portion 18 that is inclined downward toward the front. Further, a reinforcing member 19 which is a metal channel member is fixed to the lower surface of the rear end support portion 17 over the entire width direction, and the upper surface of the rear half portion of the reinforcing member 19 is combined over the entire length thereof. A resin cover member C is attached.
Through holes (not shown) are formed in the vicinity of the left and right ends of the inclined mounting portion 18 of the front end support portion 16, and nuts are provided at portions corresponding to the left and right through holes on the back surface (lower surface) of the front end support portion 16. N1 is fixed. Furthermore, the front half part of the metal front bracket 21 is placed on each of the portions corresponding to the left and right through holes on the upper surface of the front end support part 16, and a through hole (not shown) provided in the front bracket 21. A pair of left and right front brackets 21 are fixed in the vicinity of the left and right side portions of the inclined mounting portion 18 by screwing bolts B1 penetrating through the through holes of the front end support portion 16 into the corresponding nuts N1.
In addition, two through holes (not shown) are formed in the left and right end portions in the vicinity of the rear end portion of the bottom plate 15 (in front of the rear end support portion 17), and each through hole on the back surface (lower surface) of the bottom plate 15 is penetrated. Four nuts N2 are fixed to the portions corresponding to the holes. Further, the left and right side portions of the metal rear bracket 22 are placed on the portions corresponding to the left and right through holes (a pair of through holes) on the upper surface of the bottom plate 15, respectively. The left and right rear brackets 22 are fixed to the bottom plate 15 by screwing the two through holes (not shown) provided and the four bolts B2 penetrating the through holes of the bottom plate 15 into the corresponding nuts N2. ing.

The left and right lower rails 25 are metal channel members that extend in the front-rear direction and have an upper surface opened. The left and right lower rails 25 are respectively screwed in the vicinity of the front end portion and the rear end portion of the lower surface to the upper surface of the rear half portion of the front bracket 21 and the upper surface of the rear bracket 22 (as shown in FIG. The front end portion of the bottom plate portion 26 is fixed to the rear portion of the front bracket 21 by screwing the bolt B3 into a screw hole formed in the rear portion of the front bracket 21) and fixed to the bottom plate 15 so as not to be relatively movable. It is.
As shown in FIGS. 7 to 12, the lower rail 25 has a bottom plate portion 26, a pair of left and right side wall portions 27 extending upward from the left and right side portions of the bottom plate portion 26, and substantially horizontally inward from the upper ends of the left and right side wall portions 27. An upper surface portion 28 that extends and a retaining portion 29 that hangs down from the inner edge portion of the upper surface portion 28 are provided. The upper surface of the bottom plate portion 26 is a flat bottom surface 30, and the lower surface of the upper surface portion 28 constitutes a flat ceiling surface 31. A stopper member 32 that closes the front end opening of the lower rail 25 is fixed to the front end surfaces of the left and right lower rails 25 (see FIG. 6).
Three locked members 33, 34, and 35 made of metal are welded side by side in the front-rear direction on the side wall portion 27 on the vehicle inner side of the left and right lower rails 25. Further, a pair of front and rear lock holes 36 are formed in these three locked members 33, 34, and 35.

Further, as shown in FIGS. 6, 16, etc., the upper surface of the rear end support member 38 made of metal is welded to the rear end portions of the lower surfaces of the bottom plate portions 26 of the left and right lower rails 25. A flat contact plate 39 fixed to the bottom of the rear end support portion 17 is in contact with the vicinity of both left and right end portions of the rear end support portion 17. Further, as shown in FIG. 16, circular attachment holes 41 and 42 are drilled at locations where the upper portion of the rear end support member 38 and the rear end portion of the bottom plate portion 26 face each other. A metal stopper member 44 having a head 43 having a diameter larger than that of the mounting hole 41 and the mounting hole 42 is press-fitted into the mounting hole 41 and the mounting hole 42, and is further recessed in the peripheral surface of the lower end portion of the stopper member 44. A retaining C ring 45 is mounted in the annular groove.
Further, a long hole (fragile portion) 47 extending in the front-rear direction is formed as a through hole in the vicinity of the center portion of the left and right side wall portions 27 of the left and right lower rails 25 (between the locked member 33 and the locked member 34). A V-shaped cut (fragile portion) 48 is formed at the center of the lower edge of each long hole 47. Therefore, the lower rail 25 is formed as a long article having a uniform cross section by roll forming, but only the portion where the long hole 47 and the cut 48 are formed has a different cross-sectional shape from the other portions.

Next, the structure of the slide unit 50 slidable with respect to the left and right lower rails 25 will be described.
As shown in FIGS. 7 to 12, the slide unit 50 has a pair of left and right roller support members 51 that are inserted into the left and right lower rails 25, respectively. The roller support member 51 is formed of a pair of left and right vehicle interior brackets 52 and vehicle exterior brackets 53 that are symmetrical to each other and extend in the front-rear direction, and the vertical upward projecting portions 54 of the vehicle interior bracket 52 and the vehicle exterior bracket 53 are vertical. Are joined together and integrated. The vehicle inner side bracket 52 and the vehicle outer side bracket 53 include a horizontal portion 55 that extends in a substantially horizontal direction from the lower end of the upper projecting portion 54, and a side wall portion 56 that hangs down from the end portion of the horizontal portion 55. The horizontal portion 55 and the side wall portion 56 of the vehicle inner side bracket 52 and the vehicle outer side bracket 53 constitute a channel-shaped roller support portion 57 whose bottom surface is opened. Furthermore, the cross-sectional shape (left-right width) of most portions of the roller support portion 57 is as shown in FIGS. 7 and 9, but as shown in FIG. 8, the vicinity of the front end portion of the roller support portion 57 is different from the other portions. And has a narrow cross-sectional shape.
As shown in FIGS. 6, 7, and 9, support holes 59 are formed in front end portions of the side wall portions 56 of the vehicle interior bracket 52 and the vehicle exterior bracket 53, and the vehicle interior bracket 52 and the vehicle exterior bracket 53 are formed. A support hole 60 is formed in the rear end portion of the side wall portion 56. The left and right support holes 59 and the support holes 60 are non-rotatably fitted with the rotation shaft 61 and the rotation shaft 62 each having a cylindrical shape except for the left and right ends, respectively. Further, in the positions corresponding to the support holes 59 and the support holes 60 in the roller support portion 57, the lower roller 63 and the lower roller 64, which are coaxial with the support holes 59 and the support holes 60 and have the same shape, are respectively positioned. A central through-hole 65 penetrating the lower roller 63 and the lower roller 64 in the left-right direction is rotatably fitted to the rotary shaft 61 and the rotary shaft 62, respectively.
On the other hand, as shown in FIGS. 6 and 8, support holes 66 are formed in the vehicle inner bracket 52 and the vehicle outer bracket 53 in the vicinity of the front end portion of the roller support portion 57 (portions narrower than other portions). It is set up. The left and right support holes 66 are non-rotatably fitted in a state where a metal rotating shaft 67 is prevented from coming off. The rotary shaft 67 has a cylindrical shape larger in diameter than the support hole 66 and has a central shaft portion 67a positioned between the vehicle inner side bracket 52 and the vehicle outer side bracket 53, and corresponding support holes from both left and right end portions of the central shaft portion 67a. And a rotation support portion 67b having a columnar shape having a smaller diameter than the support hole 66 and extending in the left-right direction through the 66. On the peripheral surfaces of the left and right rotation support portions 67 b, a collar made of a metal that is shorter than the rotation support portion 67 b and cannot rotate relative to the rotation support portion 67 b and the corresponding support hole 66 and is stronger than the rotation shaft 67. 68 is fitted. Further, center holes of a pair of left and right upper rollers 69 are rotatably fitted in the vicinity of the ends of the left and right rotation support portions 67b, and the ends (caulking portions 67c) of the left and right rotation support portions 67b are caulked. This prevents the left and right upper rollers 69 from falling off the left and right rotation support portions 67b.
As shown in FIGS. 6, 10 and 11, the lower end of the upper roller 69 is located above a straight line connecting the lower end of the lower roller 63 and the lower end of the lower roller 64. Therefore, as shown in FIGS. 6, 8, and 10, the lower roller 63 and the lower roller 64 are normally in contact with the bottom surface 30 of the lower rail 25, and the left and right upper rollers 69 are separated from the bottom surface 30 (and the ceiling surface 31). Accordingly, the left and right roller support members 51 can slide in the front-rear direction with respect to the left and right lower rails 25 by rotating the lower roller 63 and the lower roller 64, respectively. The front moving end of the roller support member 51 is regulated at a position where the front lower roller 63 contacts the stopper member 32, and the rear lower roller 64 of the roller support member 51 is connected to the head 43 (stopper member). 44).

As shown in FIGS. 7 to 12, the upper protrusions 54 of the vehicle inner bracket 52 and the vehicle outer bracket 53 of the left and right roller support members 51 have an L-shaped cross section by four rivets R1 arranged in the front-rear direction. The vehicle inner side support member 70 and the vehicle outer side support member 71 are integrated. Both the vehicle inner side support member 70 and the vehicle outer side support member 71 are provided with a support piece 72 and a support piece 73 that are positioned horizontally and at the same height.
As shown in FIG. 12, a lock support member 74 is fixed to the lower surfaces of the support pieces 72 of the left and right vehicle inner side support members 70. The lock support member 74 includes a hanging piece 75 that faces the side wall 27 on the inner side of the lower rail 25, and an inclined piece 76 that forms an end opposite to the hanging piece 75. The hanging piece 75 is formed with a pair of front and rear through holes 77 positioned at the same height as the lock holes 36 of the members to be locked 33, 34, and 35 (a pair of through holes 77 in the front and rear form a pair. This is the same as the distance between the front and rear of the lock hole 36). Further, the drooping piece 75 supports both front and rear end portions of a rotating shaft 78 extending in the front-rear direction, and the rotating shaft 78 supports the upper end portion of the lock member 79 to be rotatable. The vehicle inner end portion of the lock member 79 protrudes to the vehicle inner side of the hanging piece 75 through a window hole 80 formed in the upper end corner portion of the lock support member 74 on the vehicle inner side. Further, a pair of front and rear lock claws 81 projecting toward the vehicle outer side is provided at the intermediate portion of the lock member 79. In the lock member 79, when the through hole 77 faces the lock hole 36 of any of the members to be locked 33, 34, 35, the front and rear lock claws 81 are fitted into the front and rear through holes 77 and the lock hole 36, respectively. Between the lock position (the position indicated by the solid line in FIG. 12) and the unlock position (the position indicated by the imaginary line A in FIG. 12) where the front and rear lock claws 81 escape from the front and rear through-holes 77 and the lock hole 36 to the inside of the vehicle. And is always urged to rotate toward the lock position by the rotation urging force of the torsion coil spring S (see FIG. 3) wound around the rotation shaft 78.
Furthermore, the front-end | tip part (lower end part) of the lock member 79 is curving toward the vehicle outer side, and the engagement recessed part 83 is formed in the vehicle outer surface side. An engagement ball 84 is engaged with the engagement recess 83, and an operation wire W <b> 1 having one end connected to the engagement ball 84 passes through a through hole (not shown) formed in the lock member 79. Extends inside the car. The operation wire W1 is inserted through a support cylinder 85 supported by the inclined piece 76 and a flexible outer tube 86 having one end fixed to the support cylinder 85, and the other end of the operation wire W1 is described later. The operation handle 100 is connected.

A metal side support member 87 extending in the front-rear direction is placed on the upper surface of the support piece 72 of the left and right vehicle inner side support members 70 and the support piece 73 of the vehicle outer side support member 71. The vicinity of the front end, the support piece 72, and the support piece 73 are fixed to each other by four bolts B4. The front and rear dimensions of the left and right side support members 87 are substantially the same as those of the lower rail 25, and the cross-sectional shape thereof is substantially W-shaped as shown in FIG. As shown in FIG. 17, the side support member 87 has three attachment holes 88 arranged in the front-rear direction. A fixing bracket 89 having a substantially U-shaped cross section is fitted into each mounting hole 88 from below, and is fixed by spot welding the front and rear ends of the fixing bracket 89 to the lower surface of the side support member 87. . A through hole 90 is formed in the upper part of the fixing metal 89, and a nut N 3 concentric with the through hole 90 is fixed to the lower surface of the upper part of the fixing metal 89.
Near the rear end of the lower surface of the left and right side support members 87, a pair of left and right upper flanges 92 of a metal rear beam member 91 having a channel shape extending in the left-right direction and opening the upper surface are welded. In the vicinity of the front end portion of the lower surface of the left and right side support members 87, both ends of a metal front beam member 93 extending in the left-right direction are welded. Furthermore, both ends of a pair of left and right metal connecting members 94 extending in the front-rear direction are welded to two locations near the center of the lower surface of the rear beam member 91 and two locations near the center of the lower surface of the front beam member 93. is there. The vicinity of the center part of the left and right outer tubes 86 is fixed to the middle part of the left and right metal connecting members 94 by fixing means (not shown).
As shown in FIGS. 2, 4, and 13, a tube bracket 96 that is shorter than the rear beam member 91 and has an L-shaped cross section is fixed to the lower surface of the central portion of the rear beam member 91. is there. Metal mounting cylinders 98 are fixed to the mounting recesses 95 (see FIG. 5) formed in the hanging piece 97 of the tube bracket 96 as a pair of left and right, and the other ends of the outer tubes 86 are fixed to the left and right support cylinders 98. (Rear end) is connected. As shown in FIGS. 2 and 4, two handle brackets 99 project rearward from the vicinity of the central portion of the rear surface of the rear beam member 91, and penetrate through the left and right handle brackets 99. Rotating shafts 101 protruding from the left and right ends of the operation handle 100 are fitted in holes (not shown) so as to be rotatable.
The operation handle 100 is rotatable between a locked position and an unlocked position, and a rear end portion of the operation wire W1 protruding rearward from the left and right support cylinders 98 is fixed to the lower surface of the operation handle 100. Since the urging force of the torsion coil spring S that urges the lock member 79 to rotate is exerted on the operation wire W1, the operation handle 100 is always located at the lock position. On the other hand, when the operator manually rotates the operation handle 100 toward the unlock position, the operation wire W1 is pulled rearward, so that the engagement ball 84 connected to the front end of the operation wire W1 unlocks the lock member 79. The lock claw 81 (lock member 79) and the support hole 66 are unlocked.
The members slidable in the front-rear direction with respect to the left and right lower rails 25 described above, that is, the members configured by reference numerals 51 to 101 are constituent elements of the slide unit 50. Further, the vehicle interior bracket 52, the vehicle exterior bracket 53, the vehicle interior support member 70, the vehicle exterior support member 71, and the side support member 87 are components of the upper rail.

As shown in FIGS. 2 and 14, a pair of left and right screw holes 106 are formed in the center portion of the bottom plate 15 in the left-right direction and in the vicinity of the rear end portion in the front-rear direction. A pair of left and right support plates 107 having a substantially L-shaped cross section are placed on the upper surface of the bottom plate 15. By screwing bolts B5 penetrating the left and right support plates 107 into the left and right screw holes 106, The support plate 107 is fixed to the upper surface of the bottom plate 15. Support holes 108 that are coaxial with each other are formed in the upper end portions of the left and right support plates 107, and are fitted in the left and right support holes 108 so that the rotation shaft 109 is prevented from coming off. The portion excluding the left and right ends of the rotating shaft 109 has a columnar shape, and a central through hole 111 of the support roller 110 having a cylindrical shape is rotatably fitted to the columnar portion.
Further, on the upper surfaces of the three fixing brackets 89 of the left and right side support members 87, a horizontally long rectangular load mounting plate 115 that covers the entire upper surface of the slide unit 50 is mounted. As shown in FIG. 17, a fitting hole 116 having a rectangular shape in plan view is formed as a through hole at a position corresponding to each fixing bracket 89 of the luggage placing plate 115. Corresponding fixing fittings 89 are fitted to the lower portions of the fitting holes 116 from below, and the upper surfaces of the left and right side support members 87 support the left and right side portions of the lower surface of the luggage placement plate 115, respectively. . A lower portion of a rubber cap member 118 is fitted to the upper portion of each fitting hole 116, and the lower surface of the peripheral portion of the cap member 118 is in contact with the upper surface of the luggage placing plate 115. A through hole 120 is formed in the bottom surface of the recess 119 formed on the upper surface of the cap member 118, and a nut in which the bolt B 6 inserted into the through hole 120 and the through hole 90 of the fixing bracket 89 is fixed to the lower surface of the fixing bracket 89. The luggage placement plate 115 is fixed to the left and right side support members 87 by being screwed to N3.
Further, as shown in FIG. 6, an aluminum front plate 117 having a horizontally long rectangle in a front view is fixed to the front surface of the luggage placing plate 115.
When the load placing plate 115 is fixed to the upper surface of each fixing bracket 89 in this way, the center portion in the left-right direction of the lower surface of the load placing plate 115 is supported by the support roller 110 as shown in FIG.

Next, the operation of the slide deck device 20 configured as described above will be described.
When the back door 12 of the vehicle 10 closes the back opening 11, the front surface plate 117 of the load placement plate 115 and the slide unit 50 of the slide deck device 20 are positioned at substantially the same longitudinal position as the front bracket 21. Positioned at the storage position (position shown in FIG. 2) (positioned immediately after the second row seat 13), the lock claws 81 of the left and right lock members 79 are fitted into the lock holes 36 of the left and right locked members 33 (lock). To do).
When the operation handle 100 is rotated to the unlock position with the back door 12 opened, the left and right lock members 79 are rotated to the unlock position by pulling the operation wire W1, and thus the lock member 79 (lock claw 81). And the locked state by the lock hole 36 of the to-be-locked member 33 is cancelled | released. Therefore, when the load placing plate 115 is pulled out rearward while holding the operation handle 100, the load placing plate 115 and the slide unit 50 slide backward while rotating the lower roller 63, the lower roller 64 and the support roller 110. The rear part of the mounting plate 115 protrudes rearward of the vehicle 10 (rear opening part 11). Locked members 33, 34, and 35 are secured to the front and rear three positions of the left and right lower rails 25, so that when the left and right lock members 79 reach the same front-rear direction position as the locked member 34, When the left and right lock members 79 (lock claws 81) are engaged with the lock holes 36 of the member to be locked 34, the load placing plate 115 and the slide unit 50 can be held in that position. Further, as indicated by phantom lines in FIG. 6, the rear part of the luggage placing plate 115 protrudes rearwardly from the rear opening 11 of the vehicle 10, and the left and right lower rollers 64 correspond to the left and right heads 43 (stopper members 44). When the operator pulls his / her hand away from the operation handle 100 when slid to the maximum pull-out position positioned immediately before, the left and right lock members 79 (lock claws 81) engage with the lock holes 36 of the member to be locked 35. The plate 115 and the slide unit 50 can be held at the maximum drawer position.
Further, for example, when the rear portion of the luggage placement plate 115 is protruded to the rear of the rear opening 11 with a heavy load placed on the rear end portion of the luggage placement plate 115, the rear end of the luggage placement plate 115 is obtained. And the front lower roller 63 and the front portion of the luggage placement plate 115 are lifted upward with the contact portion between the rear lower roller 64 and the bottom surface 30 of the lower rail 25 as a fulcrum. However, when the front lower roller 63 and the front portion of the luggage placing plate 115 are lifted upward in this way, the upper roller 69 located in front of the rear lower roller 64 contacts the ceiling surface 31 of the lower rail 25 as shown in FIG. Therefore, the load placing plate 115 and the slide unit 50 can be smoothly slid forward or backward by using the lower roller 64 and the left and right upper rollers 69 at the rear.

The slide deck device 20 according to the present embodiment that performs such an operation exhibits a great effect when a large external force is applied, such as when another vehicle collides with the rear portion of the vehicle 10.
That is, for example, when another vehicle collides with the bumper BP of the vehicle 10, the collision load is transmitted from the bumper BP to the bottom plate 15 through the vehicle body, and further transmitted from the front bracket 21 and the rear bracket 22 to the left and right lower rails 25. The lower rail 25 is made of metal and has a large rigidity, and in particular, the rigidity of the portion where the members to be locked 33, 34, and 35 are fixed is large. However, the portion in which the long hole 47 is formed has a lower rigidity against buckling than the other portions, and in particular, the portion in which the cut 48 is formed has a lower rigidity than the other portion in which the long hole 47 is formed. Therefore, when the load applied to the lower rail 25 exceeds a predetermined value (buckling load), the lower rail 25 buckles from the portion where the notch 48 is formed or the vicinity thereof (within the range where the long hole 47 is formed). Start.
Thus, if the energy of the collision load is absorbed by the buckling of the lower rail 25, it is possible to effectively prevent the bottom plate 15 from being deformed or cracked.

Furthermore, when the long hole 47 and the cut 48 are formed in the bottom plate portion 26, the long hole 47 and the cut 48 prevent the lower roller 63 and the lower roller 64 from rolling. Further, since a large load is applied to the bottom plate portion 26 from the lower roller 63 and the lower roller 64, if the rigidity of the bottom plate portion 26 is reduced by forming the long holes 47 and the notches 48, the bottom plate portion is caused by the load applied from the lower roller 63 and the lower roller 64. 26 may be deformed or damaged. In addition, if the long holes 47 and the cuts 48 are formed in the upper surface part 28 and the retaining part 29, the rigidity of the entire lower rail 25 is reduced as compared with the case where the long holes 47 and the cuts 48 are formed in the bottom plate part 26 and the side wall part 27. End up.
However, such a problem does not occur if the long hole 47 and the cut 48 are formed in the side wall portion 27 as in the present embodiment.

  Further, in this embodiment, not only the rigidity of the portion where the long hole 47 (cut 48) is formed, but also the rigidity of the portion where the members to be locked 33, 34, 35 are fixed is increased so that the lower rail 25 is locked. The buckling start point of the lower rail 25 can be accurately controlled because it is difficult to buckle from the portion where the 33, 34 and 35 are fixed.

In the present embodiment described above, the fragile portion for reducing the rigidity of a specific portion of the lower rail 25 is configured by forming the long hole 47 and the notch 48. May be configured by through holes or notches having different shapes (formed in the front-rear direction position between the front bracket 21 and the rear bracket 22). In addition, as shown in FIG. 18, as a substitute for the through hole and the notch, a concave portion 125 is formed by pressing on the left and right side portions (or only one of them) of the lower rail 25. The fragile portion may be formed by the concave portion 125, which is formed at a position in the front-rear direction between the rear brackets 22.
Furthermore, it is preferable to provide a fragile part such as a through hole, a notch or a concave part at the center part (or the vicinity of the center part) of the front bracket 21 and the rear bracket 22, but between the front bracket 21 and the rear bracket 22. You may provide in the position different from a center part (or center part vicinity).
In addition, although there is a possibility that the above-described inconvenience may occur, it is of course possible to carry out by forming weak portions such as through holes, notches, and recesses in the bottom plate portion 26, the upper surface portion 28, and the retaining portion 29.
Further, it is of course possible to carry out by fixing three or more brackets arranged in the front-rear direction to the bottom plate 15 and the lower rail 25 (in this case also, the fragile portion is formed at a position in the front-rear direction between two adjacent brackets. To do).

It is a perspective view of the rear part of a car to which one embodiment of the present invention is applied. It is a top view which shows the luggage | load mounting board of a slide deck apparatus by an imaginary line. It is a top view which abbreviate | omits and shows the load-carrying board and side part supporting member of a slide deck apparatus. It is a top view of a slide unit. It is a rear view of a slide unit. It is a side view of the right lower rail and its peripheral members. It is sectional drawing which follows the VII-VII arrow line of FIG. It is sectional drawing which follows the VIII-VIII arrow line of FIG. It is sectional drawing which follows the IX-IX arrow line of FIG. It is the front view seen from the X arrow line of FIG. It is sectional drawing similar to FIG. 10 when the front-end part of a package mounting board floats. It is sectional drawing which follows the XII-XII arrow line of FIG. It is sectional drawing which follows the XIII-XIII arrow line of FIG. It is sectional drawing which follows the XIV-XIV arrow line of FIG. It is an enlarged view of a long hole and a notch. It is sectional drawing which follows the XVI-XVI arrow line of FIG. It is sectional drawing which follows the XVII-XVII arrow line of FIG. It is a perspective view which shows the center part of the lower rail in a modification.

Explanation of symbols

10 Vehicle (Automobile)
11 Back opening 12 Back door 13 Second row seat 14 Luggage room 15 Bottom plate 16 Front end support portion 17 Rear end support portion 18 Inclined mounting portion 19 Reinforcement member 20 Slide deck device 21 Front bracket (bracket)
22 Rear bracket (bracket)
25 Lower rail 26 Bottom plate portion 27 Side wall portion 28 Upper surface portion 29 Stopping portion 30 Bottom surface 31 Ceiling surface 32 Stopper member 33 34 35 Locked member 36 Lock hole 38 Rear end support member 39 Contact plate 41 42 Mounting hole 43 Head portion 44 Stopper member 45 C ring 47 long hole (fragile part) (through hole)
48 notch (fragile part)
50 Slide unit 51 Roller support member 52 Car interior bracket (upper rail)
53 Outer bracket (upper rail)
54 Upper protrusion 55 Horizontal portion 56 Side wall portion 57 Channel portion 59 60 Support hole 61 62 Rotating shaft 63 64 Lower roller 65 Center through hole 66 Support hole 67 Rotating shaft 67a Center shaft portion 67b Rotating support portion 67c Caulking portion 68 Color 69 Upper roller 70 Inside bearing member (upper rail)
71 Outer bearing member (upper rail)
72 73 Bearing piece 74 Lock support member 75 Suspended piece 76 Inclined piece 77 Through hole 78 Rotating shaft 79 Lock member 80 Window hole 81 Lock claw 83 Engagement recess 84 Engagement ball 85 Outer tube 86 Outer tube 87 Side support member (upper rail) )
88 mounting hole 89 fixing bracket 90 through hole 91 rear beam member 92 upper flange 93 front beam member 94 metal connecting member 96 tube bracket 97 hanging piece 98 support cylinder 99 handle bracket 100 operation handle 101 rotating shaft 106 screw hole 107 Support plate 108 Support hole 109 Rotating shaft 110 Support roller 111 Center through hole 115 Luggage placement plate 116 Fitting hole 117 Front plate 118 Cap member 119 Recess 120 Through hole 125 Recess (fragile portion)
B1 B2 B3 B4 B5 B6 Bolt BP Bumper R1 Rivet C Cover member N1 N2 N3 Nut S Torsion coil spring W1 Operation wire

Claims (4)

A pair of left and right channels formed in a channel shape extending in the front-rear direction and fixed in the front-rear direction on a bottom plate of a luggage room of a vehicle including a back door, and forming a vertical gap with the bottom plate The lower rail,
A luggage placement plate slidable with respect to the left and right lower rails,
A vehicular slide deck device, wherein the lower rail is formed between two brackets adjacent to each other in the front-rear direction and has a weakened portion having a lower rigidity against buckling than other portions. The vehicle slide deck device according to claim 1,
The lower rail includes a bottom plate portion, a pair of left and right side wall portions extending upward from both left and right end portions of the bottom plate portion, and a pair of left and right upper surface portions extending substantially horizontally inward from the upper ends of the left and right side wall portions, ,
A pair of left and right upper rails that support the lower surface of the load carrying plate and are slidably fitted to the left and right lower rails;
A plurality of rollers arranged on the upper rail and arranged in the front-rear direction to roll on the bottom plate portion while supporting the upper rail and the luggage placing plate in the lower rail,
A slide deck device for a vehicle, wherein the fragile portion is a through hole formed in the side wall portion of the lower rail. The vehicle slide deck device according to claim 2,
The slide deck device for vehicles which formed the notch which is the component of the said weak part in the lower edge part of the said through-hole. The vehicular slide deck device according to any one of claims 1 to 3,
A locking member that slides together with the load carrying plate and is movable between a locked position and an unlocked position;
The locked side is provided with a lock hole on the side surface of the lower rail that is disengaged from the fragile portion in the front-rear direction, engageable with the lock member positioned at the lock position, and not engageable with the lock member positioned at the unlock position. A slide deck device for a vehicle to which members are fixed.

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