JP2008254574A - Sliding part structure of resin storage box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding part structure of a resin storage box which suppresses generation of low-grade noise from the storage box when a vehicle travels, and provides the smooth take-out/take-in of a casing 7 from a storage part 9. <P>SOLUTION: A pair of receiving seats 23, 23 having engagement ports 23a are projected from a back side of a bottom wall 11a of a storage box 11, and a pair of supporting seats 29, 29 for supporting tongue-shaped engagement piece parts 27 are projected from a surface side of a bottom wall 9a of the casing 7. In a stored condition, the tongue-shaped engagement piece parts 27 are inserted in and engaged with the engagement ports 23a. Reinforcing rails 18 are provided on both sides in the orthogonal direction of the pair of receiving seats 23, 23 on the back side of the bottom wall 11a of the storage box 11, and reinforcing rail receivers 15 slidably supporting the reinforcing rails 18 are provided on the surface side of the bottom wall 9a of the casing 7. A projection part 19b is provided on a lower end 19a of each reinforcing rail 18 at the corresponding position between the pair of receiving seats 23, 23, and a cutout part 19c is formed at the corresponding position in a vicinity of the receiving seat 23. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sliding part structure of a resin storage box.

In Patent Document 1, a storage box storage portion is formed by recessing a floor panel of a cargo compartment provided at the rear of the vehicle body of the vehicle, and the storage box can be inserted into and removed from the rear of the vehicle body. A stored storage structure is disclosed. In the storage structure of the storage box, the storage state of the storage box can be maintained by engaging the protruding piece provided on the back side of the storage box storage portion with the striker provided on the back side of the storage box. Further, in the process of pulling out the storage box, a safety lever provided on the front side of the storage box storage portion is engaged with the lower end of the rear end frame so that the storage box does not fall off from the storage box storage portion.
JP 2001-322500 A (paragraph 0039 column, FIGS. 6 and 8)

  However, in the storage structure of the storage box described above, the safety lever on the front side of the storage box storage part is not engaged with the lower end of the rear end frame. There is a risk of rattling.

  In order to solve this problem, the present inventor designed a storage structure for a resin storage box characterized by two bottom wall structures in the front and rear directions of the housing including the storage box and the storage box storage. Specifically, in this storage structure, a receiving seat having a closed cross-section-shaped engagement port is provided in the vicinity of both ends of the back surface of the bottom wall of the storage box, and the bottom wall surface of the housing is accessed. In the vicinity of both ends in the direction, a support seat that supports the tongue-like engagement piece is provided so as to correspond to the receiving seat.

  By adopting such a storage structure, in the storage state where the storage box is stored in the storage box storage portion, the tongue-like engagement piece portion is inserted into the engagement port having a closed cross-sectional shape in the vicinity of both ends in the access direction. As a result, the movement of the storage box in the vertical and horizontal directions is restricted, so that the storage box can be stably stored without rattling in the storage box storage section.

  For the operation of pulling out the storage box from the storage box storage portion, for example, a reinforcement rail is provided on the back of the bottom wall of the storage box in order to reduce the frictional resistance when pulling out the storage box and perform a smooth pull-out operation. It is conceivable to provide a reinforcing rail receiver for slidably supporting the reinforcing rail on the bottom wall surface of the housing.

  However, since the storage box and the reinforcement rail are relatively large members, distortion and warpage due to temperature changes and the like are likely to occur. A warp may occur between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver due to warping in a direction perpendicular to the direction and the direction of entering and exiting (hereinafter referred to as the “in / out orthogonal direction”).

  FIG. 14 is a cross-sectional view cut in the loading / unloading direction schematically showing the storage state of the storage box, and FIG. 15 is a cross-sectional view cut in the loading / unloading orthogonal direction schematically showing the same state. As shown in FIGS. 14 and 15, when the bottom wall 11 a of the storage box 11 and the reinforcing rail 18 are warped, a gap is generated between the lower end of the reinforcing rail 18 and the upper surface 15 a of the reinforcing rail receiver 15. When the vehicle is traveling, a lower sound is generated because the lower end of the reinforcing rail 18 and the upper surface 15a of the reinforcing rail receiver 15 repeat contact and non-contact.

  As a result of studies conducted by the present inventor to suppress the generation of low-frequency sounds, when the distance between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver is large, it is difficult for the two to come into contact with each other during traveling of the vehicle. It was discovered that the generation of low-pitched sounds can be avoided.

  Therefore, the present inventor has designed a structure in which the interval between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver is intentionally widened by providing a protrusion extending downward at the lower end of the reinforcing rail. As a result, it is possible to suppress the generation of low-priced sounds during vehicle travel.

  However, when the interval between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver is increased, the interval between the rear surface of the bottom wall of the storage box and the surface of the bottom wall of the housing is increased accordingly. For this reason, since the engaged port and the tongue-like engagement piece are pulled in the reverse direction, the frictional resistance when pulling out the storage box increases due to the strong engagement between the two and the smooth engagement. It was confirmed that it was difficult to perform the drawer operation.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a resin storage box that suppresses the generation of low-pitched sounds during vehicle travel and allows the storage box to be smoothly put in and out. It is to realize a sliding part structure.

  In the first invention, the bottom wall rear surface of the drawer-type resin storage box that is stored in the storage box storage portion of the resin casing so as to be horizontally put in / out is in the vicinity of the both ends in the direction of entry / exit. And at least one pair of receiving seats each having a closed cross-section-shaped opening that is disposed so as to be located on the same line and that opens to the rear side in the loading / unloading direction. A pair of pairs of tongue-shaped engaging pieces that are arranged on the surface so as to be positioned on the same line along the direction of entry / exit in the vicinity of both ends in the direction of entry / exit and that extend horizontally forward in the direction of entry / exit In a state in which at least one pair of support seats are provided so as to correspond to the receiving seats, and the storage box is stored in the storage box storage portion, the tongue-like engagement piece portion is inserted into the engagement port. Resin storage box sliding Reinforcing rails extending from the vicinity of the front / rear direction to the vicinity of the rear end on both sides of the pair of seats in the perpendicular direction of the entrance / exit perpendicular to the entrance / exit direction. A reinforcing rail receiver that slidably supports the reinforcing rail is provided on the surface of the bottom wall of the casing so as to correspond to the reinforcing rail. A protrusion extending downward is provided at a position corresponding to between the seats, and a notch is provided at a position corresponding to the vicinity of the seat.

  Since the protrusion extending downward is provided at the lower end of the reinforcing rail in this way, the distance between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver is increased, so that low-level noise is generated during vehicle travel. Can be suppressed. Furthermore, since the notch is provided at the lower end of the reinforcing rail, the rigidity of the reinforcing rail in the vicinity of the seat can be reduced. And the tongue-like engagement piece portion can be prevented from being strongly engaged, and an increase in frictional resistance when the storage box is pulled out can be prevented.

  According to a second aspect of the present invention, in the first aspect of the present invention, at least two pairs of receiving seats are provided so as to protrude, and the reinforcing rails are provided on both sides of each pair of receiving seats in the direction perpendicular to the entrance / exit. The protrusion is provided only on the outermost reinforcing rail of the reinforcing rail, and the notch is provided on at least the outermost reinforcing rail of the reinforcing rail. It is.

  Here, when the bottom wall of the storage box is warped, the reinforcement rail located inside (center side) of the outermost reinforcement rail is lower than the outermost reinforcement rail. And the upper surface of the reinforcing rail receiver are increased. That is, the reinforcement rail on the inner side of the outermost reinforcement rail is unlikely to generate a low-level sound even if the lower end thereof is not provided with a protrusion. Therefore, in the second invention, since the protrusions are provided only on the outermost reinforcing rail among the reinforcing rails, it is possible to efficiently suppress the generation of lower sounds.

  Moreover, since the notch is provided in at least the outermost reinforcing rail among the reinforcing rails, the rigidity of the outermost reinforcing rail can be reliably reduced. As a result, the engagement port of the seat and the tongue-like engagement piece of the support seat are strongly engaged in the vicinity of the outermost reinforcement rail, even though the projection is provided on the outermost reinforcement rail. Can be prevented. Therefore, it is possible to reliably prevent an increase in frictional resistance when pulling out the storage box.

  According to a third invention, in the first or second invention, the protruding portion is provided at a position corresponding to the vicinity of the front receiving seat or the vicinity of the rear receiving seat, and the notched portion is a receiving portion on the protruding portion side. It is provided at a position corresponding to the vicinity of the seat.

  Here, when the protrusion is provided at a position corresponding to the vicinity of the front seat and the vicinity of the rear seat, the seat to be engaged and the tongue of the support seat at the front and rear seats and the support seat. The hook-shaped engagement piece is strongly engaged. In addition, even when the protrusion is provided at a position corresponding to approximately the middle of the pair of seats, the seat-engaged opening and the tongue-like engagement piece of the support seat are provided at the seats and the support seats on both the front and rear sides. The parts engage strongly. Therefore, in these cases, in order to perform a smooth drawing operation, it is necessary to provide notches at positions corresponding to the vicinity of the front seat and the vicinity of the rear seat.

  On the other hand, when the projection is provided at a position corresponding to the vicinity of the front seat or the vicinity of the rear seat as in the third aspect of the invention, the seat engaging port and the support seat on the projection side are provided. The tongue-shaped engagement piece portion of the support seat engages strongly, but the engagement port of the receiving seat and the tongue-like engagement piece portion of the support seat on the opposite side of the projection portion do not engage strongly. Therefore, in order to perform a smooth pull-out operation, it is only necessary to provide a notch at a position corresponding to the vicinity of the seat on the protrusion side as in the third aspect of the invention. The number of parts provided can be reduced. Thereby, since the number of places which reduce the rigidity of a reinforcement rail decreases, the rigidity in the in-and-out direction of a storage box can be held.

  According to the present invention, even when a reinforcing rail is provided on the back of the bottom wall of the storage box in order to smoothly pull out the storage box, the lower end of the reinforcing rail is placed between the pair of seats. Since a downwardly extending protrusion is provided at the corresponding position, the distance between the lower end of the reinforcing rail and the upper surface of the reinforcing rail receiver can be maintained, so that low-frequency noise from the storage box during vehicle travel can be maintained. Can be suppressed.

  Furthermore, since the notch is provided at the lower end of the reinforcing rail at a position corresponding to the vicinity of the seat, the rigidity of the reinforcing rail in the vicinity of the seat can be reduced. Thus, it is possible to prevent the engagement pieces from being strongly engaged and to prevent an increase in frictional resistance when the storage box is pulled out.

  As a result, it is possible to suppress the generation of lower sounds when the vehicle is running and to smoothly put in and out the storage box.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a cargo compartment 5 provided at the rear of a vehicle body 3 of a vehicle 1, and two resin casings 7 are juxtaposed in the vehicle width direction below the floor (not shown) of the cargo compartment 5. Yes. Each casing 7 includes a storage portion 9 formed of a bottom wall 9a, both side walls 9b, and a rear wall 9c and having a substantially rectangular shape in plan view (see FIGS. 4 to 6), and the casing 7 on the right side in the vehicle width direction. In the storage portion 9, a drawer-type resin storage box 11 having a substantially rectangular shape in plan view is stored so that it can be inserted and removed from the rear of the vehicle body 3. A storage box 11 is not stored in the storage portion 9 of the housing 7 on the left side in the vehicle width direction, and for example, a long object is directly stored. The storage box 11 may be stored in the same manner as in FIG. Hereinafter, the storage unit 9 of the housing 7 on the right side in the vehicle width direction in which the storage box 11 is stored is referred to as a storage box storage unit 9. In FIG. 1, a trunk board that covers the two casings 7 from above is omitted.

  As shown in FIGS. 2 and 3, the storage box 11 is formed in a shallow dish shape with a bottom wall 11a, side walls 11b, a front wall 11c, and a rear wall 11d, and the front wall 11c is covered with a cover 11e. Yes. In addition, in the vicinity of both ends of the back surface of the bottom wall 11a of the storage box 11 in the direction of entry and exit, as shown in an enlarged view in FIG. Projected. The engaged ports 23a of the seats 23 are opened on the rear side (back side) in the loading / unloading direction and closed on the front side (front side) in the loading / unloading direction. A tongue-like engagement piece 27 (see FIG. 4), which will be described later, is inserted into and engaged with the engaged port 23a and is received and supported by the receiving seat 23. Moreover, the receiving seat 23 arrange | positioned so that it may be located on the same line along the in / out direction has comprised the pair of receiving seats 23 and 23 (it comprises). That is, two pairs of seats 23, 23 are provided on the back surface of the bottom wall 11 a of the storage box 11. Hereinafter, of the pair of seats 23, 23, the front side in the loading / unloading direction is referred to as a front side seat 23f, and the rear side seat is referred to as a rear side seat 23r.

  Reinforcing rails 18 are provided on the back of the bottom wall 11a of the storage box 11 on the left and right sides in a direction orthogonal to the direction of insertion / removal of each pair of receiving seats 23, 23 (hereinafter referred to as the “in / out orthogonal direction”). It protrudes from the receiving seats 23, 23 so as to extend from the vicinity of the front end to the vicinity of the rear end with an interval in the direction perpendicular to the input / output. The reinforcing rail 18 has a plurality of ribs in which two parallel plates 19, 19 arranged at intervals in the entrance / exit orthogonal direction (storage box width direction) are arranged at intervals in the entry / exit direction (storage box front-rear direction). It is formed in a ladder shape connected at 20. In the storage box 11 shown in FIG. 3, one reinforcing rail 18 is provided on each side of the pair of seats 23, 23. That is, four reinforcing rails 18 are provided so as to project from the two pairs of seats 23, 23. Further, the lower end 19a of the reinforcing rail 18 is provided with a protrusion 19b (described later) extending downward and a notch 19c (described later) (see FIGS. 11 and 12).

  Further, a stopper 25 is provided in the vicinity of the rear end of the rear surface of the bottom wall 11a of the storage box 11 in the vicinity of the rear end, that is, the front side of the rear receiving seat 23r (close to the front wall 23c (see FIG. 8)). Yes. The stopper 25 is formed by intersecting five ribs 25a arranged at intervals in the entrance / exit orthogonal direction and two ribs 25b arranged at intervals in the entry / exit direction. A plurality of ribs 21 (see FIG. 7) extending in the vertical and horizontal directions are formed on the outer circumferences of the side walls 11b and the rear wall 11d. The rib 25b of the stopper 25 (the rib 25b on the front wall 11c side) can also be used as the front wall of the rear receiving seat 23r. By doing so, it is not necessary to provide the stopper 25 specially, and the structure can be simplified, so that the cost can be reduced.

  On the other hand, in the vicinity of both ends of the bottom wall 9a surface of the casing 7 in the direction of entry / exit, as shown in FIGS. Has been. The support seats 29 arranged so as to be located on the same line along the direction of taking in and out form a pair of support seats 29 and 29. That is, two pairs of support seats 29, 29 are provided on the surface of the bottom wall 9 a of the housing 7. Hereinafter, of the pair of support seats 29, 29, the front support seat 29f is referred to as a front support seat 29f, and the rear support seat 29r is referred to as a rear support seat 29r. Each of the support seats 29 is supported by a tongue-like engagement piece 27 extending horizontally to the front side of the loading / unloading direction. Further, the rear wall of the rear support seat 29r is gently inclined (see FIG. 8), but the rear wall 29a of the front support seat 29f is formed at right angles to the bottom wall 9a of the storage box storage portion 9. It also serves as an abutting portion with which the stopper 25 abuts (see FIG. 10).

  Further, on the surface of the bottom wall 9a of the housing 7, four reinforcing rail receivers 15 extending from the vicinity of the front end in the loading / unloading direction to the vicinity of the rear end are provided so as to correspond to the reinforcing rails 18 of the storage box 11. ing. The reinforcing rail receiver 15 is formed of a plate that is bent so as to have a horizontal upper surface that supports the lower end of the reinforcing rail 18 (the lower end of the parallel plate 19). Further, in order to prevent derailment of the reinforcing rail 18, both ends of the upper surface of the reinforcing rail receiver 15 in the orthogonal direction are folded in a mountain shape so as to be higher than the horizontal upper surface (see FIG. 9). The reinforcing rail receiver 15 is provided on each of both sides of the pair of support seats 29, 29 in the orthogonal direction, and receives the reinforcing rail 18 slidably. Further, since the reinforcing rail 18 is supported by the reinforcing rail receiver 15, a space is secured between the bottom wall 9 a of the housing 7 and the bottom wall 11 a of the storage box 11. For this reason, the bottom wall 9a of the housing 7 does not interfere with the seat 23 and the stopper 25, and the bottom wall 11a of the storage box 11 and the support seat 29 do not interfere with each other.

  Further, a tongue-shaped extending portion 33 projects sideways toward the inside in the longitudinal direction (in / out direction) of the upper end of the side wall 9b of the casing 7, and when the storage box 11 is stored, The storage box 11 extends inward so as to face the upper end of the side wall 11 b of the storage box 11. A punching hole 35 for forming the extended portion 33 is formed continuously in the bottom wall 9a and the side wall 9b. The extension portion 33 pulls out the storage box 11 from the storage box storage portion 9, and the extension portion 33 is in a state where the stopper 25 is in contact with the rear wall 29a (contact portion) of the front support seat 29f. However, it faces the upper end of the side wall 11b at the rear end of the storage box 11 with a slight gap.

  In a state in which the storage box 11 is stored in the storage box storage unit 9 configured as described above, the storage box 11 is inserted into the storage box storage unit 9 and, as shown in FIGS. The side wall 9b of the body 7 and the rib 21 formed on the side wall 11b of the storage box 11 are stored in the storage box storage unit 9 so as to allow movement in the direction of putting in and out with a slight gap. In the state in which the storage box 11 is stored in the storage box storage portion 9 as described above, as shown in FIGS. 8 to 10, the front and rear, left and right 4 of the casing 7 and the bottom walls 9 a and 11 a of the storage box 11 are arranged. The tongue-like engagement piece 27 of the support seat 29 is inserted and engaged with the engaged port 23 a of the receiving seat 23 at the location and is supported by the receiving seat 23. The support seat 29 and the tongue-like engagement piece portion 27 are provided with recesses 29b downward, and ribs 27s are provided downward on both side ends of the tongue-like engagement piece portion 27. Therefore, the rigidity of the tongue-like engagement piece 27 can be improved. Specifically, the four support seats 29 and the receiving seats 23 are such that the upper and lower surfaces 27d and 27e of the tongue-like engagement piece 27 are in contact with the upper and lower inner surfaces of the engaged port 23a and the tongue-like shape. Both side ends of the engagement piece portion 27 are in contact with inner surfaces on both sides of the engagement port 23a. Further, the stopper 25 and the rear wall 29a of the front support seat 29f are greatly separated from each other in the loading / unloading direction.

  Next, the sliding part structure of the storage box in this embodiment will be described in detail. 11 and 12, only the two reinforcing rails 18, 18 located on the outermost side of the four reinforcing rails 18, provided on the back surface of the bottom wall 11a of the storage box 11 are provided. Each of the lower end portions 19a is provided with a protruding portion (convex portion) 19b extending downward (downward). Specifically, a protrusion 19b is formed on the lower end 19a of the two parallel plates 19, 19 only on the outermost two reinforcing rails 18, 18 of the four reinforcing rails 18,. Has been.

  The protrusion 19b has a trapezoidal shape and is provided between the pair of receiving seats 23 and 23 and at a position corresponding to the vicinity of the rear receiving seat 23r. Specifically, the protrusion 19b is formed in front of the stopper 25 in the direction of taking in and out. Thus, since the protrusion part 19b is provided in the lower end part 19a of the reinforcement rail 18, the space | interval of the lower end of the reinforcement rail 18 and the upper surface 15a of the reinforcement rail receiver 15 expands.

  On the other hand, as shown in FIG. 11, the lower end portion 19a of each reinforcing rail 18, specifically, the lower end portion 19a of the two parallel plates 19 and 19 of each reinforcing rail 18 is near the rear seat 23r. A notch portion (recessed portion) 19c cut out in a trapezoidal shape is provided at a position corresponding to. The notches 19c are provided on the four reinforcing rails 18,... But need only be provided at least on the outermost reinforcing rails 18, 18 provided with the protrusions 19b. Thus, since the notch part 19c is provided in the reinforcement rail lower end part 19a, the rigidity of the reinforcement rail 18 in the vicinity of the seat 23 can be reduced.

-Effect-
In the present embodiment, in a state where the storage box 11 is stored in the storage box storage portion 9, the tongue-like engagement piece portion 27 is inserted and engaged with the engaged port 23a having a closed cross-sectional shape in the vicinity of both ends in the entrance / exit direction. Since the movement of the storage box 11 in the vertical and horizontal directions is restricted, the storage box 11 can be stably stored in the storage box storage unit 9 without rattling.

  Further, since the protrusion 19b is provided at the lower end 19a of the reinforcing rail 18, the interval between the lower end of the reinforcing rail and the upper surface 15a of the reinforcing rail receiver is increased, so that low-level noise is generated during vehicle travel. It becomes possible to suppress.

  In addition, the protrusion 19b is provided only on the two reinforcing rails 18 and 18 located on the outermost side of the four reinforcing rails 18. As shown in FIG. 15, when the bottom wall 11a of the storage box 11 and the reinforcing rail 18 are warped, the outermost reinforcing rails 18, 18 In comparison, the distance between the lower end of the reinforcing rail and the upper surface 15a of the reinforcing rail receiver is increased. That is, the two reinforcing rails 18 and 18 located at the center are less likely to generate low-quality sound even if the lower end portion 19a is not provided with the protruding portion 19b. Therefore, the protrusions 19b are provided only on the outermost reinforcing rails 18 of the four reinforcing rails 18,.

  Further, since the notched portion 19c is provided in the lower end portion 19a of the reinforcing rail 18, the engagement opening 23a and the tongue are formed in the portion in the vicinity of the seat 23 of the reinforcing rail 18 even though the protruding portion 19b is provided. It is possible to prevent the engagement piece 27 from engaging strongly, and to prevent an increase in frictional resistance when the storage box 11 is pulled out.

  Further, since the protrusion 19b is provided at a position corresponding to the vicinity of the rear receiving seat 23r, the engaged port 23a of the rear receiving seat 23r and the tongue-like engaging piece 27 of the rear supporting seat 29r are Engage strongly, but the engagement port 23a of the front receiving seat 23f and the tongue-like engagement piece 27 of the front support seat 29f on the opposite side of the projection 19b (away from the projection 19b) do not engage strongly. . Therefore, in order to perform a smooth pull-out operation, it is only necessary to provide the notch 19c at a position corresponding to the vicinity of the rear seat 23r as in this embodiment, so that the lower end 19a of the reinforcing rail 18 is cut out. The location where the notch 19c is provided can be reduced. As a result, the number of locations where the rigidity of the reinforcing rail 18 is reduced is reduced, so that the rigidity of the storage box 11 in the loading / unloading direction can be maintained.

  Further, since the rear wall 29a of the front support seat 29f with which the stopper 25 abuts is provided when the storage box 11 is pulled out from the storage box storage portion 9, the storage box 11 is stored as shown in FIG. Even in the state of being pulled out from the box storage portion 9, the state where the position corresponding to the vicinity of the rear seat 23 r of the reinforcing rail 18 is supported by the reinforcing rail receiver 15 can be maintained. That is, it is possible to maintain the state where the rigidity is reduced by providing the notch in the parallel plate 19 of the reinforcing rail 18 and supported by the reinforcing rail receiver 15. For this reason, even when a large force is applied to the storage box 11 in a state where the storage box 11 is pulled out, it is possible to prevent a large bending stress from being generated in a portion where the rigidity is lowered. Thereby, it can prevent that the part in which the notch part 19c is provided is damaged.

(Other embodiments)
In the above embodiment, four receiving seats 23 and four supporting seats 29 are formed, but the number is not limited to this. Furthermore, in the above-described embodiment, the stopper 25 and the receiving seat 23 are provided separately, but the stopper 25 may be eliminated and serve as the front wall of the rear receiving seat 23r. In addition, in the said embodiment, although the support seat 29 serves as the contact part, you may provide the support seat 29 and the contact part separately.

  Moreover, in the said embodiment, although the reinforcement rail 18 was provided one each at the both sides of the entrance / exit orthogonal direction of each pair of receiving seats 23 and 23, the number of stripes is not limited to this. Furthermore, in the above embodiment, the ladder-shaped reinforcing rail 18 in which the two parallel plates 19 and 19 are connected by the rib 20 is used. However, the structure of the reinforcing rail 18 is not limited to this. Alternatively, a reinforcing rail 18 made of only a plurality of plates, a rectangular bar-shaped reinforcing rail 18 having a rectangular cross section, or the like can also be used.

  Moreover, in the said embodiment, although the projection part 19b is trapezoid shape, the shape is not limited to this, Shapes, such as a rectangle and a circular arc shape, are also applicable. However, for example, in the case of providing a protrusion having a shape having substantially right-angled corners at both ends, such as a substantially rectangular shape, it is necessary to smoothly slide the reinforcing rail 18 on the reinforcing rail receiver 15, It is desirable to chamfer both end portions of the protruding portion in and out of the protruding portion by R machining or the like. Further, the height and length of the protruding portion 19b are not limited, and can be appropriately selected according to the size of the storage box 11 and the distance between the pair of receiving seats 23 and 23.

  Furthermore, although the protrusion 19b is provided at a position corresponding to the vicinity of the rear receiving seat 23r, the installation position may be anywhere as long as it is provided between the pair of receiving seats 23, 23. However, when the projection 19b is provided at a position corresponding to approximately the middle of the pair of receiving seats 23, 23, the engagement port 23a of the front receiving seat 23f and the tongue-like engaging piece of the front supporting seat 29f are provided. 27 is strongly engaged, and the engaged port 23a of the rear receiving seat 23r and the tongue-like engagement piece 27 of the rear supporting seat 29r are strongly engaged. Therefore, in order to perform a smooth drawing operation, it is desirable to provide the notch 19c at a position corresponding to the vicinity of the front receiving seat 23f and the vicinity of the rear receiving seat 23r.

  Moreover, in the said embodiment, although the notch part 19c is trapezoid shape, if the rigidity of the reinforcement rail 18 can be reduced, the shape will not be limited. However, in the case where notched portions having substantially right-angled corners are provided at both ends, it is necessary to smoothly slide the reinforcing rail 18 on the reinforcing rail receiver 15 as in the case of the protruding portion 19b. Therefore, it is desirable to chamfer both ends of the notch in the direction of entry and exit.

  Further, the depth and length of the notch 19c are not limited, and the rigidity of the reinforcing rail 18 in the vicinity of the seat 23 is determined according to the dimensions, material, and shape of the storage box 11 and the reinforcing rail 18. It is possible to appropriately select the depth that can reduce the length and the length in the direction of entry / exit.

  As described above, when the rectangular rail-shaped reinforcing rail 18 having a rectangular cross section is used, the rigidity of the reinforcing rail 18 can be reduced by providing the recess.

  In addition, in the above-described embodiment, the notches 19c are provided in the four reinforcing rails 18,..., But are provided at least in the outermost reinforcing rails 18, 18 provided with the protrusions 19b. It only has to be done. If the notch 19c is provided in the outermost reinforcement rails 18, 18, the rigidity of the outermost reinforcement rails 18, 18 can be reliably reduced. As a result, the engagement opening 23a of the seat 23 and the tongue of the support seat 29 are provided in the vicinity of the outermost reinforcement rails 18 and 18 even though the projections 19b are provided on the outermost reinforcement rails 18 and 18. It is possible to prevent the engagement piece 27 from engaging strongly. Therefore, it is possible to reliably prevent an increase in frictional resistance when the storage box 11 is pulled out. In addition, if the notch part 19c is provided in 4 reinforcement rails 18 ... like the said embodiment, it can prevent more reliably that the frictional resistance at the time of pulling out the storage box 11 increases. .

  Moreover, in the said embodiment, although the projection part 19b was provided in the outermost reinforcement rails 18 and 18, if the projection part 19b is provided in all the reinforcement rails 18, generation | occurrence | production of a low tone will be suppressed more reliably. it can. Further, in the above embodiment, the notch 19c is provided at a position corresponding to the vicinity of the rear receiving seat 23r. However, in addition to the vicinity of the rear receiving seat 23r, the notch is also provided at a position corresponding to the vicinity of the front receiving seat 23f. If the part 19c is provided, the frictional resistance when pulling out the storage box 11 can be further reduced.

  Moreover, in the said embodiment, although the projection part 19b was provided in the position corresponding to the back side seat 23r vicinity, conversely, when the projection part 19b is provided only in the position corresponding to the front side seat 23f vicinity In other words, by providing the notch 19c at a position corresponding to the vicinity of the front receiving seat 23f, the same operation and effect as in the above embodiment can be achieved.

  In order to confirm the effect of the present invention, the following tests were conducted to evaluate the product of the storage box.

<Test product>
In the example, comparative example 1 and comparative example 2, two pairs of receiving seats are provided in a protruding manner, and a storage box provided with four reinforcing rails, and two pairs of supporting seats are provided in a protruding manner, and the reinforcing rail receiving portions are provided. A housing provided with four strips was used.

  In the embodiment, as the storage box, only the outermost reinforcing rail of the above four reinforcing rails has a height at a position corresponding to the vicinity of the rear receiving seat between the pair of receiving seats at the lower end thereof. A protrusion extending 1 mm and a length of 60 mm in and out is provided, and the lower end of the four reinforcing rails has a depth of 2 mm at the position corresponding to the vicinity of the rear seat. What provided the notch part of the direction length 125mm was used. Moreover, in the comparative example 1, what did not provide the projection part and the notch part in any of the said 4 reinforcement rails was used as a storage box. Furthermore, in Comparative Example 2, as a storage box, only the outermost reinforcing rail of the above four reinforcing rails has a height of 1 mm between the pair of receiving seats and at a position corresponding to the vicinity of the rear receiving seat. The one provided with a protrusion having a length of 60 mm in and out was used.

<Test>
The drawer required for pulling out the storage box from the storage box storage portion of the housing while investigating the generation of low-pitched sound from the storage box during vehicle travel and with a load of 100 N (Newton) loaded on the storage box The force was measured.

<Test results>
In Comparative Example 1 in which the protrusions and the notches are not provided on the reinforcing rails of the storage box, a low-level sound was generated when the vehicle was running. On the other hand, in the example and the comparative example 2 in which the protrusion is provided at the lower end of the reinforcing rail of the storage box, the lower sound was suppressed compared to the comparative example 1.

  On the other hand, the force required for pulling out was 65 N in Comparative Example 1 in which no protrusions and notches were provided on the reinforcing rails of the storage box, whereas the notches were formed at the lower end of the reinforcing rails of the storage box. In Comparative Example 2 where it was not provided, it was 80 N. As described above, in Comparative Example 2, the force required for pulling out increased by 15 N compared to Comparative Example 1, and thus it was difficult to perform a smooth pulling out operation. In contrast, in the example, the force required for pulling out the storage box was 45 N, the force required for pulling out was reduced by 20 N compared to Comparative Example 1, and the force required for pulling out was reduced by 35 N compared with Comparative Example 2. As described above, in the examples, good results were obtained in both the effect of suppressing the lower sound and the effect of reducing the drawing force.

  As described above, the present invention is useful for the sliding portion structure of the resin storage box.

It is a perspective view of a storage box and a housing which are arranged at the vehicle body rear part of a vehicle concerning an embodiment of the present invention. It is the perspective view which looked at the storage box from the front side. It is the perspective view which looked at the storage box from the back side. It is the perspective view which looked at the housing | casing from the front side. It is a top view of a housing | casing. It is a perspective view which shows the storage state of a storage box. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. FIG. 7 is a cross-sectional view taken along line VIII-VIII in FIG. 6. It is arrow directional cross-sectional view of the IX-IX line of FIG. FIG. 7 is a cross-sectional view taken along line XX in FIG. 6. FIG. 7 is a cross-sectional view taken along line XI-XI in FIG. 6. FIG. 7 is a cross-sectional view taken along line XII-XII in FIG. 6. It is arrow sectional drawing in the position equivalent to the XIII-XIII line | wire of FIG. 6 which shows the state by which the storage box was pulled out. It is sectional drawing cut | disconnected in the in / out direction which shows the storage state of a storage box typically. It is sectional drawing cut | disconnected in the in-out orthogonal direction which shows the storage state of a storage box typically.

Explanation of symbols

7 Housing 9 Storage box storage 9a Bottom wall 11 Storage box 11a Bottom wall 15 Reinforcement rail receiver 18 Reinforcement rail 19a Lower end 19b Projection 19c Notch 23 Receiving 23a Engagement port 23f Front receiving 23r Rear receiving 25 Stopper 27 Tongue engagement piece 29 Support seat 29a Rear wall of rear support seat (contact portion)

Claims (3)

On the back of the bottom wall of the drawer-type resin storage box that is stored in the storage box storage section of the resin casing so as to be horizontally accessible, is located on the same line along the access direction in the vicinity of both ends of the access direction. And at least one pair of seats each having a closed cross-section-shaped opening opening at the rear side in the loading / unloading direction.
Tongue-like engagement pieces that are arranged on the surface of the bottom wall of the casing so as to be positioned on the same line along the direction of entry / exit in the vicinity of both ends in the direction of entry / exit, and extend horizontally forward in the direction of entry / exit A pair of support seats for supporting the at least one pair is provided so as to correspond to the seat,
In the state in which the storage box is stored in the storage box storage portion, the tongue-like engagement piece portion is a sliding structure of a resin storage box in which the tongue engagement piece is inserted and engaged with the engaged port,
Reinforcing rails that extend from the vicinity of the front / rear direction to the vicinity of the rear end are provided on both sides of the pair of seats, in the direction perpendicular to the direction of insertion / removal, on the back of the bottom wall of the storage box,
On the surface of the bottom wall of the housing, a reinforcing rail receiver that slidably supports the reinforcing rail is provided so as to correspond to the reinforcing rail,
The lower end of the reinforcing rail is provided with a protruding portion extending downward at a position corresponding to the pair of seats, and a notch is provided at a position corresponding to the vicinity of the seat. A sliding structure of a resin storage box, characterized in that In the sliding part structure of the resin storage box according to claim 1,
The pair of seats is provided with at least two pairs of protrusions,
Each of the reinforcing rails is provided on each of both sides of the pair of receiving seats in the direction perpendicular to the entrance and exit,
The protrusion is provided only on the outermost reinforcing rail among the reinforcing rails,
The sliding part structure of a resin storage box, wherein the notch is provided on at least the outermost reinforcing rail among the reinforcing rails. In the sliding part structure of the resin storage box according to claim 1 or 2,
The protrusion is provided at a position corresponding to the vicinity of the front seat or the vicinity of the rear seat,
The sliding part structure of a resin storage box, wherein the notch is provided at a position corresponding to the vicinity of a seat on the protrusion side.

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