Rail

Abstract

A rail (10), comprising a fixture mounting wall W, and a plurality of mounting holes provided in the fixture mounting wall (W), wherein: the fixture (40) is provided with a first engagement section (51) and a second engagement section (52) at either end in the width direction thereof; at least some of the mounting holes have lateral mounting holes that allow the fixture (40) to be mounted such that the width direction is a lateral direction along the longitudinal direction of the rail (10); the fixture mounting wall (W) is provided with an engagement wall extending in the longitudinal direction; at one end and another end of the lateral mounting holes in the longitudinal direction, there are first and second edges which are part of the engagement wall and at which the first engagement section (51) and the second engagement section (52) engage during lateral mounting; and thick plate walls (17a, 17b) that extend in the longitudinal direction and are thicker than the engagement wall are provided on both sides in the rail width direction, orthogonal to the longitudinal direction relative to the first and second edges in the fixture mounting wall (W).

Description

rail

[0001] The present disclosure relates to rails.

[0002] Conventionally, rails with multiple mounting holes for mounting fixtures have been known. See, for example, Patent Document 1. Such rails have multiple mounting holes arranged at equal intervals, some of which are cross-shaped. The cross-shaped mounting holes allow fasteners to be mounted in any direction, either vertically or horizontally.

[0003] Japanese Patent Application Laid-Open No. 2003-072455

[0004] Because a large force is applied to the lashing belt having the fastener at its tip, the thickness of the rail near the mounting hole cannot be thinned. Meanwhile, the rail near the mounting hole is curled to improve the mounting strength of the fastener, but it is not easy to accurately perform such complex processing on thick plate portions, high-strength steel plate, etc. In view of the above circumstances, a rail that can improve the strength near the mounting hole is desired.

[0005] One aspect of the present disclosure is a rail fixed to a wall surface in a luggage compartment, the rail comprising: a fixture mounting wall to which a fixture attached to an end of a belt is attached; and a plurality of mounting holes provided in the fixture mounting wall, the fixture having a first engagement portion at one end in a width direction of the fixture and a second engagement portion at the other end in the width direction, at least some of the plurality of mounting holes having lateral mounting holes to which the fixture can be attached such that the width direction is oriented along the longitudinal direction of the rail, and the fixture mounting wall has a plurality of mounting holes extending in the longitudinal direction. An engaging wall is provided for engaging the fastener mounting hole, and at one longitudinal end of the lateral mounting hole there is a first edge that is part of the engaging wall and with which the first engaging portion engages during lateral mounting, and at the other longitudinal end of the lateral mounting hole there is a second edge that is part of the engaging wall and with which the second engaging portion engages during lateral mounting, and thick plate walls that extend in the longitudinal direction and are thicker than the engaging walls are provided on both sides of the first edge and the second edge of the fastener mounting wall in the rail width direction perpendicular to the longitudinal direction.

[0006] 18A and 18B are side views of a track to which a rail according to an embodiment of the present disclosure is attached; 18B are perspective views of a main portion of the rail according to this embodiment; 18C are front views of a main portion of the rail according to this embodiment; 18D are rear views of a main portion of the rail according to this embodiment; 18E are cross-sectional views along line V-V in FIG. 3; 18F are cross-sectional views along line VI-VI in FIG. 3; 18G are perspective views of a fastener; 18H are front views of a main portion of the rail to which the fastener is attached; 18H are cross-sectional views of a main portion of the rail to which the fastener is attached; 18I are rear views of a main portion of the rail according to this embodiment; 18I are side views of a rail to which a fastener is attached; 18I are cross-sectional views of a rail according to a first modified example of this embodiment; 18I are cross-sectional views of a rail according to a second modified example of this embodiment; 18I are cross-sectional views of a rail according to a third modified example of this embodiment; 18I are cross-sectional views of a rail according to a fourth modified example of this embodiment; 18I are perspective views of a main portion of a conventional rail; 18I are front views of a main portion of a conventional rail; 18I are cross-sectional views along line XIX-XIX in FIG. 18

[0007] In one embodiment, the rail 10 is fixed to a side wall of a trunk 1 as shown in Fig. 1 . The rail 10 may also be fixed to another wall of the trunk 1. The trunk 1 may be a luggage storage area of ​​a vehicle, a container, or the like. The rail 10 has a plurality of mounting holes 20, 30 formed at intervals in its longitudinal direction. Hereinafter, the longitudinal direction of the rail 10 may be simply referred to as the longitudinal direction.

[0008] In this embodiment, as shown in Figure 1, the longitudinal direction of the rail 10 and the fore-and-aft direction of the vehicle coincide with the X-axis direction, the width direction of the rail 10 coincides with the Z-axis direction, which is the up-and-down direction, and the vehicle width direction is the Y-axis direction.

[0009] The rail 10 is made of a metal plate. Specifically, the rail 10 is formed by pressing an extrusion of a metal such as aluminum. Pressing includes shearing, punching, and the like. The aluminum extrusion may also be subjected to drawing. As shown in Figures 1, 5, 6, and the like, the rail 10 has a pair of fixed portions 11 that are fixed to the wall surface 2. Each fixed portion 11 has a plurality of mounting holes 11a formed therein.

[0010] The following description will be given assuming that a pair of fixed portions 11 are fixed to a wall surface 2. As shown in FIGS. 2 to 5 , the rail 10 has a pair of extending walls 12 extending away from the wall surface 2 from each of the pair of fixed portions 11, and a pair of mounting wall bodies 13 extending inward in the rail width direction from the ends of the pair of extending walls 12 farther from the wall surface 2. In this embodiment, each mounting wall body 13 extends in the Z-axis direction. In the rail 10, each mounting wall body 13 and the portion thereof inward in the rail width direction form a fixing device mounting wall W to which a fixing device 40 (described below) is attached. As shown in FIGS. 5 and 6 , the fixing device mounting wall W has an inner surface 10a on the wall surface 2 side and an outer surface 10b on the opposite side.

[0011] In addition, the rail 10 has a first recess-direction wall 14a extending from the inner end of one of the pair of mounting wall bodies 13 in the rail width direction toward the wall surface 2, and a second recess-direction wall 14b extending from the inner end of the other of the pair of mounting wall bodies 13 in the rail width direction toward the wall surface 2.

[0012] The rail 10 has a first recess wall 15a extending inward in the rail width direction from the first recess direction wall 14a, and a second recess wall 15b extending inward in the rail width direction from the second recess direction wall 14b.

[0013] A first protruding direction surface 16a is formed on the outer surface 10b of the fastener mounting wall W of the rail 10, extending from the inner end of the first recessed wall 15a in the rail width direction in a direction away from the wall surface 2. Furthermore, a second protruding direction surface 16b is formed on the outer surface 10b of the fastener mounting wall W of the rail 10, extending from the inner end of the second recessed wall 15b in the rail width direction in a direction away from the wall surface 2. In this embodiment, the extending direction of each of the protruding direction surfaces 16a, 16b is inclined with respect to the Y-axis direction, but the extending direction of each of the protruding direction surfaces 16a, 16b may also be the Y-axis direction.

[0014] The rail 10 has a first thick wall 17a extending inward in the rail width direction from the inner end of the first recessed wall 15a in the rail width direction, and a second thick wall 17b extending inward in the rail width direction from the inner end of the second recessed wall 15b in the rail width direction. Note that another wall may be provided between the first recessed wall 15a and the first thick wall 17a, or between the second recessed wall 15b and the second thick wall 17b. The same applies to the space between the other walls.

[0015] The rail 10 has an engagement wall 18 between a first thick wall 17a and a second thick wall 17b, with which a fastener engages. One end of the engagement wall 18 in the rail width direction is connected to the first thick wall 17a, and the other end of the engagement wall 18 in the rail width direction is connected to the second thick wall 17b. In other words, the first thick wall 17a and the second thick wall 17b are disposed on either side of the engagement wall 18 in the rail width direction.

[0016] In this embodiment, the walls 14a, 14b, 15a, 15b, 17a, and 17b form a protrusion P that protrudes from the pair of mounting wall bodies 13 toward the wall surface 2. As shown in Figures 1 to 3, the fixed portion 11, the surfaces 16a and 16b, and the walls 12, 13, 14a, 14b, 15a, 15b, 17a, and 17b are each formed over the entire longitudinal length of the rail 10, except for the portions where the mounting holes 20 and 30 are provided.

[0017] 3 to 5, protrusions P are formed in a predetermined width range AR inward in the rail width direction from both ends 20a of the mounting holes 20. The mounting holes 20 are elongated holes that are long in the rail width direction, and in this embodiment, the dimension of the mounting holes 20 in the Z-axis direction is 2.5 times or more the dimension in the X-axis direction.

[0018] In this embodiment, the distance L2 in the Z-axis direction from the end 20a of the mounting hole 20 to the protrusion P is 2 mm or more. It is preferable that the distance L2 in the Z-axis direction from the end 20a of the mounting hole 20 to the protrusion P is 0.2 times or more the thickness of the mounting wall main body 13. In addition, the protrusion amount L1 of the protrusion P from the mounting wall main body 13 is 0.5 times or more the thickness of the mounting wall main body 13.

[0019] 4 to 6, in one example, a fastener 40 attached to the end of a belt B for securing luggage is attached to any one of the multiple attachment holes 20, 30. The fastener 40 has a metal fastener body 41 and a swinging member 42 swingably attached to the fastener body 41. A pair of engaging recesses are formed on both ends of the fastener 40 in the width direction, which engage with the edge portions at both ends of the attachment holes 20, 30, respectively.

[0020] In this embodiment, some of the multiple mounting holes 20, 30 are cross-shaped mounting holes 30. The mounting holes 30 are each provided with a vertical mounting hole 31 that is long in the rail width direction and a horizontal mounting hole 32 that is long in the longitudinal direction of the rail 10, all in the same hole. A fastener 40 is mounted to the vertical mounting hole 31 in the same direction as the mounting hole 20, and this type of mounting of the fastener 40 is referred to as vertical mounting in this embodiment. The positions of both ends of the vertical mounting hole 31 in the rail width direction are the same as the end 20a. The fastener 40 is mounted to the horizontal mounting hole 32 in a direction that is 90° different from the mounting hole 20, and this type of mounting of the fastener 40 is referred to as horizontal mounting in this embodiment.

[0021] As shown in Figures 7 to 9, in this embodiment, the fixture body 41 has a pair of metal plates 44, 45 arranged with a gap of several millimeters in the X direction, and each of the pair of metal plates 44, 45 has a notch formed therein for an engagement recess. As a result, a first engagement portion 51 is provided at one end of the fixture 40 in the width direction, and a second engagement portion 52 is provided at the other end of the fixture 40 in the width direction. The width direction can also be considered the direction in which the engagement portions 51, 52 are aligned. In this embodiment, the width direction of the fixture 40 also corresponds to the width direction of the belt B, as shown in Figure 10. In other words, the longer direction of the elongated hole 46 for attaching the belt B corresponds to the width direction of the fixture 40. Each engagement portion 51, 52 is formed by a pair of metal plates 44, 45. That is, each engagement portion 51, 52 has two engagement surfaces spaced apart in the thickness direction of the fixture 40, and the two engagement surfaces are formed by the end faces of the metal plates 44, 45, respectively. The thickness direction corresponds to the thickness direction of the metal plates 44, 45. The fixture body 41 may be made of a single metal plate. In this case, each of the engaging portions 51 and 52 has one engaging surface.

[0022] 4, one longitudinal end of the lateral mounting hole 32 is provided with a first edge 18a, which is part of the engaging wall 18 and engages with the first engaging portion 51 during lateral mounting. Also, the other longitudinal end of the lateral mounting hole 32 is provided with a second edge 18b, which is part of the engaging wall 18 and engages with the second engaging portion 52 during lateral mounting.

[0023] In this embodiment, each edge 18a, 18b has the same width HW as the longitudinal end side 32a of the lateral mounting hole 32. In one example, the end side 32a is 30%, 20%, 10%, or the like, from both ends of the longitudinal direction of the lateral mounting hole 32. In this embodiment, the position of one end of each edge 18a, 18b in the rail width direction corresponds to the position of one end of the longitudinal end side 32a of the lateral mounting hole 32 in the rail width direction. Furthermore, the position of the other end of each edge 18a, 18b in the rail width direction corresponds to the position of the other end of the longitudinal end side 32a of the lateral mounting hole 32 in the rail width direction.

[0024] 4, each edge 18a, 18b has a range in the longitudinal direction that is slightly wider than the engagement range in which the engaging portions 51, 52 engage. Each edge 18a, 18b may have a range in the longitudinal direction that is the same as the engagement range, or may have a range in the longitudinal direction that is slightly narrower than the engagement range.

[0025] Since the fixing device 40 is attached to and detached from the mounting holes 20, 30 of the fixing device main body 41, the swinging member 42 is installed so as to be swingable in the direction indicated by the arrow in Fig. 10. In many cases, the belt B extends obliquely from the attachment position of the fixing device 40 toward the vehicle width direction, the rear of the vehicle, the front of the vehicle, upward, downward, etc. In this case, when the fixing device 40 is attached to the vertical mounting hole 31 of the mounting hole 20 or the mounting hole 30, a force in the direction of the arrow shown in Fig. 11 (a force in the X direction) is applied near the elongated hole 46 of the fixing device main body 41, and depending on the direction of the force applied to the belt B, a force in the Z direction that tries to tilt the fixing device main body 41 in the Z-axis direction is also applied.

[0026] In the case of Figure 12, one of the metal plates 44, 45 of the engagement portions 51, 52 engages with the mounting wall main body 13 from the wall surface 2 side (first engagement position). Also, one of the pair of metal plates 44, 45 engages with the protrusion P in the X-axis direction (second engagement position). Also, the other of the pair of metal plates 44, 45 engages with the mounting wall main body 13 from the side opposite the wall surface 2 (third engagement position). This configuration thereby generates a force against the force trying to overturn the rail 10, effectively preventing deformation of the rail 10.

[0027] As shown in Figures 4 to 6, the rail 10 of this embodiment has thick plate walls 17a, 17b extending in the longitudinal direction and thicker than the engagement wall 18 on both sides of the edge portions 18a, 18b of the fixture mounting wall W in the rail width direction. As described above, when the fixture 40 is attached to the lateral mounting hole 32, a force (Z-direction force) that tends to tilt the fixture body 41 in the direction of the arrow shown in Figure 9 is applied near the elongated hole 46 of the fixture body 41. In some cases, depending on the direction of the force applied to the belt B, a Z-direction force that tends to tilt the fixture body 41 in the Z-axis direction is also applied. At this time, as shown in Figure 9, one of the metal plates 44, 45 of the engagement portions 51, 52 engages with the engagement wall 18 from the wall surface 2 side, and that portion of the engagement wall 18 receives a large force. Typically, the metal plates 44, 45 are made of iron and are harder and stronger than the engagement wall 18.

[0028] Even in such a situation, in this embodiment, thick plate walls 17a, 17b thicker than the engagement wall 18 are provided on both sides of the edge portions 18a, 18b in the rail width direction. Therefore, the edge portions 18a, 18b, to which the force from the engagement portions 51, 52 is applied, are less likely to be displaced. To explain this, a conventional rail 100 shown in FIGS. 17 to 19 will be described. The conventional rail 100 has curled portions C in the mounting holes 20', 30' to prevent deformation of the rail 100 due to the fixing device 40 to which the force attempting to overturn it is applied. The curled portions C are formed by punching holes in the fixing device mounting wall W' and then pressing the hole, bending a portion of the periphery of the hole toward the wall surface 2.

[0029] For this reason, wide hole portions WH are formed at both ends of the lateral mounting hole 32' of the conventional rail 100. Therefore, the wall NW between the wide hole portion WH and the adjacent mounting hole 20' is prone to bending, and the force tending to topple the wall NW may cause significant deformation in the contact area where the engaging portions 51 and 52 come into contact. Here, the area of ​​the contact area is small. Furthermore, the weight of the load supported by the belt B may be several hundred kg or several tons, and vehicle vibrations may apply a force equal to or several times the weight of the load to the belt B. Depending on the extension direction of the belt B, the fixing device 40 may be subjected to only a force approximately perpendicular to the wall surface 2, or the approximately perpendicular force may be added to the toppling force. A situation in which only the toppling force is applied to the fixing device 40 is also possible.

[0030] The portion where the large deformation occurs may become weak. Furthermore, when such a large deformation occurs, in the conventional rail 100, the fixing device 40 may be positioned in a position that is different from the target position with respect to the curled portion C, which may make it difficult for the curled portion C to perform the function of preventing deformation of the rail 100. Furthermore, when such a large deformation occurs, a large force may be easily applied locally to a portion of the contact area between the engaging portions 51, 52 and the rail 100.

[0031] Compared to such conventional rails 100, the rail 10, in which the edges 18a, 18b are less likely to be displaced due to the thick plank walls 17a, 17b, is useful for reducing deformation and / or damage of the rail 10 due to the approximately vertical force or the force attempting to topple it.

[0032] In this embodiment, when the force tending to tilt the fixture 40, whose position is constrained to some extent by the inner peripheral surface of the lateral mounting hole 32, the engagement wall 18, etc., is applied, one of the pair of metal plates 44, 45 comes into contact with one of the pair of thick plate walls 17a, 17b, as shown in Figure 9. This configuration effectively prevents deformation of the rail 10 due to the force tending to tilt the fixture 40. For example, frictional forces and the like generated by this contact act as resistance to the force exerted by the belt B pulling the fixture 40.

[0033] In some cases, the force acting on the fixture 40 in the approximately vertical direction is mainly absent or small, and the force tending to overturn the fixture 40 is absent or small. Even in this case, the wall of the conventional rail 100 is prone to bending due to imbalances such as the difference in the contact area between the engaging portion 51 and the engaging portion 52, the difference in the area between the metal plates 44 and 45 at the engaging portion 51, and the difference in the cross-sectional shapes of the metal plates 44 and 45. Even if the imbalance occurs, the rail 10 is resistant to displacement of the edges 18a and 18b, which is useful for reducing deformation and / or damage to the rail 10.

[0034] In this embodiment, the above-described configuration reduces deformation of the rail 10 after repeated use, which is useful for maintaining a good appearance of the rail 10. Furthermore, the reduced deformation of the rail 10 is useful for reducing or preventing luggage from hitting the deformed portion of the rail 10 when the luggage is moved within the luggage compartment 1.

[0035] Furthermore, in conventional rails 100 that have curled portions C, the thickness of the curled portions C must be kept below a certain level. Furthermore, using a high-strength material can sometimes cause problems in forming the curled portions C. In this embodiment, since the curled portions C are not provided, the thickness of the fastener mounting wall W can be increased, allowing the rail 10 to be made of a harder and stronger material than conventional rails.

[0036] In this embodiment, as shown in Figure 12, it is possible to define a boundary 18c on one side of the rail width direction and a boundary 18d on the other side of the rail width direction between the edge portions 18a, 18b of the rail 10. When viewed from the Y-axis direction, if one thickness-wise surface of a fastener 40 attached to a lateral mounting hole 32 of the mounting hole 30 abuts a single side, the boundary 18c exists on an extension of that side. As shown in Figure 4, if the mounting hole 30 has multiple sides 32b or portions that define the outer periphery of the lateral mounting hole 32 when viewed from the Y-axis direction and that abut one thickness-wise surface of the fastener 40, the boundary 18c exists on an extension of a straight line passing through the multiple sides 32b or portions. The same applies to the boundary 18d.

[0037] As shown in Figure 18, in a conventional rail 100, it is also possible to define a boundary 18c' on one side of the rail width direction and a boundary 18d' on the other side of the rail width direction between edge portions 18a' and 18b'. When viewed from the Y-axis direction, if one thickness-wise surface of a fastener 40 attached to a lateral mounting hole 32' abuts a single edge of the mounting hole 30', the boundary 18c' exists on an extension of that edge. When viewed from the Y-axis direction as shown in Figure 18, if the mounting hole 30' has multiple sides or portions 32b' that define the outer periphery of the lateral mounting hole 32' and that abut one thickness-wise surface of the fastener 40, the boundary 18c' exists on an extension of a straight line passing through the multiple sides or portions 32b'. The same applies to boundary 18d'.

[0038] The difference between the rail width direction dimension W1 (FIG. 11) of the edge portions 18a, 18b and the rail width direction spacing dimension W2 (FIG. 11) between the pair of thick plate walls 17a, 17b is preferably 8 mm or less or 6 mm or less, more preferably 4 mm or less. Furthermore, the ratio of spacing dimension W2 to dimension W1 is preferably 1.6 times or less or 1.4 times or less, more preferably 1.3 times or less. Since a smaller difference is likely to produce the same effect as this embodiment, it is more preferable that the difference be 3 mm or less. Note that the difference may be greater than the above depending on the required performance, etc. The above dimensional settings can be applied even when the shapes of the thick plate walls 17c, 17d and the recess-side walls 14c, 14d are different, as shown in FIG. 13. The same applies to FIGS. 14 to 16.

[0039] As shown in FIG. 6 , the rail thickness direction dimension T2 of the thick plate walls 17a, 17b is 1.5 times or more the rail thickness direction dimension T1 of the engaging wall 18. In this embodiment, the rail thickness direction coincides with the Y-axis direction and the thickness direction of the engaging wall 18. The same effect as this embodiment can be achieved if T2 is 1.2 times or more than T1. Considering the relationship between the dimensions W1 and W2, in this embodiment, T2 is preferably 1.8 times or less than T1. However, T2 can be set to 2.5 times or less, or 4 times or less, or even more, depending on the required specifications, other shapes of the rail 10, etc. In FIG. 13 , T2 is approximately 2.5 times T1. Note that, as shown in FIG. 13 , the rail thickness direction dimension T2 of the thick plate walls 17c, 17d can be set to the dimension T2′ at a predetermined position in the rail width direction as the rail thickness direction dimension of the thick plate walls 17a, 17b, rather than the maximum rail thickness direction dimension T2 of the thick plate walls 17c, 17d. The same applies to FIGS. 14 and 16.

[0040] Figures 13 to 16 are cross sections of a rail that is a modification of the rail 10 of this embodiment. The cross sections are taken at positions corresponding to the cross section positions in Figure 6. The fastener mounting wall W of the rail 61 in Figure 13 has a pair of mounting wall main bodies 13, recess-direction walls 14a and 14b, recess walls 15a and 15b, thick plate walls 17a and 17b, and engaging wall 18, corresponding to the pair of mounting wall main bodies 13, recess-direction walls 14c and 14d, recess walls 15c and 15d, thick plate walls 17c and 17d, and engaging wall 18. As shown in Figure 13, thick plate walls 17c and 17d are portions of engaging wall 18 where T2 is 1.2 times or more than T1, as described above, and the difference and / or ratio are also within the above ranges. In addition, in the rail 61, a protrusion P protruding from the pair of mounting wall bodies 13 toward the wall surface 2 is formed by the walls 14c, 14d, 15c, 15d, 17c, and 17d.

[0041] The fastener mounting wall W of the rail 62 in Figure 14 also has a pair of mounting wall main bodies 13, recess-direction walls 14e, 14f, recess walls 15e, 15f, thick plate walls 17e, 17f, and engaging wall 18, corresponding to the pair of mounting wall main bodies 13, recess-direction walls 14a, 14b, recess walls 15a, 15b, thick plate walls 17a, 17b, and engaging wall 18. As shown in Figure 14, the thick plate walls 17e, 17f are portions where T2 is 1.2 times or more than T1 relative to the engaging wall 18, as described above, and the difference and / or ratio are also within the above range. Note that in the rail 62, the walls 14e, 14f, 15e, 15f, 17e, and 17f form a protrusion P that protrudes from the pair of mounting wall main bodies 13 toward the wall surface 2.

[0042] The fastener mounting wall W of the rail 63 in Figure 15 also has a pair of mounting wall main bodies 13, thick plate walls 17a, 17b, and engaging wall 18 corresponding to the pair of mounting wall main bodies 13, thick plate walls 17g, 17h, and engaging wall 18. In Figure 15, there is no structure corresponding to the recess-side walls 14a, 14b and recess walls 15a, 15b; instead, the pair of mounting wall main bodies 13 and thick plate walls 17a, 17b are connected to each other. As shown in Figure 15, the thick plate walls 17g, 17h are the portions where T2 is 1.2 times or more than T1 relative to the engaging wall 18, as described above, and the difference and / or ratio are also within the above-mentioned range. In addition, in the rail 63, walls 17e and 17f form a protrusion P that protrudes from the pair of mounting wall main bodies 13 toward the wall surface 2.

[0043] The fastener mounting wall W of the rail 64 in Fig. 16 is provided with thick plate walls 17i and 17j that protrude in the direction opposite to the wall surface 2 when viewed from the engaging wall 18. The fastener mounting wall W of the rail 64 in Fig. 16 also has a pair of mounting wall main bodies 13, thick plate walls 17i and 17j, and engaging wall 18, corresponding to the pair of mounting wall main bodies 13, thick plate walls 17a and 17b, and engaging wall 18. The fastener mounting wall W of the rail 64 in Fig. 16 is provided with protruding direction walls 14i and 14j and protruding walls 15i and 15j instead of the recessed direction walls 14a and 14b and the recessed walls 15a and 15b. Note that in the rail 64, the walls 14i, 14j, 15i, 15j, 17i, and 17j form a protruding portion P' that protrudes from the pair of mounting wall main bodies 13 in the direction opposite to the wall surface 2. The protrusion P' can also achieve the above-mentioned effect of the protrusion P against the force tending to overturn the fastener 40 attached to the vertical attachment hole 31.

[0044] Like rail 62, rails 10, 61, 62, and 63 may also be provided with thick plate walls that protrude in the opposite direction from wall surface 2 when viewed from engagement wall 18. A configuration in which the thick plate walls protrude on both sides in the thickness direction of engagement wall 18 is also possible. While rails 62, 64, etc. can be manufactured by punching (pressing) mounting holes 20 and 30 in an extrusion molded product of a metal such as aluminum, as described above, they can also be manufactured by bending (pressing) a metal plate such as aluminum and then performing the punching (pressing) process.

[0045] As shown in Figure 15, a protrusion 18e extending in the X-axis direction may be formed on the surface of the engagement wall 18 facing the wall surface 2. The protrusion 18e is provided in a range other than the mounting holes 20 and 30 in the longitudinal direction of the engagement wall 18. A recess may be provided instead of the protrusion 18e. The protrusion 18e or the recess may be provided on the surface of the engagement wall 18 opposite the wall surface 2.

[0046] 9, when the force to tilt the rails 61 to 64 is applied, one of the pair of metal plates 44, 45 comes into contact with one of the pair of thick wall plates in the Z-axis direction. This configuration effectively prevents deformation of the rail 10 due to the force to tilt the rails 61 to 64. At this time, the frictional force generated by this contact can act as a resistance against the force with which the fixing device 40 is pulled by the belt B.

[0047] The above effect can be achieved by disposing a pair of plank walls at a position where the contact occurs. The pair of plank walls are configured so that the ratio of T2 to T1, the difference, and / or the ratio fall within the above range, as long as the pair of plank walls are disposed at a position that provides the above effect. As shown by the arrow in FIG. 9 , belt B is pulled in a direction that forms an angle α with respect to the Y-axis. In one example, angle α is assumed to be in the range of 45° or less. In another example, angle α is assumed to be in the range of 60° or less. It is also assumed that belt B is often disposed so that angle α is between 10° and 45°. It is also assumed that belt B is often disposed so that angle α is between 20° and 60°.

[0048] For example, when the angle α is 60°, the inclination angle β, which is the angle between the Y-axis direction and the height direction of the fixture 40, also attempts to follow the angle α. At this time, as described above, one of the pair of metal plates 44, 45 comes into contact with one of the pair of thick wall plates in the Z-axis direction, and the inclination angle β of the fixture 40 does not become 60°.

[0049] In this embodiment, the inclination angle β is defined using a vertical mounting position in which the height direction 40a of the fastener 40 extends perpendicular to the engagement wall 18. The inclination angle β is the angle formed between the height direction 40a of the fastener 40 in the vertical mounting position and the height direction 40a of the inclined fastener 40. In this embodiment, the height direction is a direction perpendicular to the width direction and thickness direction of the fastener 40.

[0050] In the example of Figure 9, when the tilt angle β reaches a certain angle of 5° or more, which is a predetermined angle, one of the pair of metal plates 44, 45 of the fastener 40 comes into contact with the thick plate wall 17b, thereby restricting the tilt of the fastener 40. In the example of Figure 9, the certain angle is 8° or 9°. In one example, the certain angle is 45° or less. In another example, the certain angle is 30° or less. In another example, the certain angle is 20° or less. The certain angle is preferably smaller than a commonly used angle of the belt B. The predetermined angle may be 3°, 2°, or 1°. Under conditions where it is determined that the ability of the fastener 40 to move in a tilting direction to some extent is more suitable for lashing work, the predetermined angle is preferably 3° or more, more preferably 5° or more, and even more preferably 10° or more.

[0051] In other words, it is sufficient to arrange the pair of thick walls in such a position, and this configuration provides the effect of the aforementioned frictional force acting as resistance. Furthermore, if the pair of thick walls are arranged in such a position, the aforementioned effect of the pair of thick walls making it difficult for the edge portions 18 a, 18 b to be displaced can also be obtained. Furthermore, in each of the above-described embodiments, the pair of thick walls protrude in one or the other direction in the rail thickness direction relative to the engaging wall 18, and this can also be said to be the reason why the aforementioned effect is achieved.

[0052] In rails 61, 62, 64 (Figures 13, 14, 16), etc., the extension direction of the plates of each thick plate wall 17c, 17d is set along the rail thickness direction, so that the dimension T2 in the rail thickness direction of the engaging wall 18 of each thick plate wall 17c, 17d is set as described above.

[0053] REFERENCE SIGNS LIST 1 Luggage compartment 2 Wall surface 10, 61, 62, 63, 64 Rails 17a to 17j Thick plank wall 18 Engagement wall 18a First edge portion 18b Second edge portion 20, 30 Mounting hole 31 Vertical mounting hole 32 Horizontal mounting hole 40 Fixture 51 First engagement portion 52 Second engagement portion W Fixture mounting wall B Belt

Claims

1. A rail fixed to a wall surface within a luggage compartment, comprising: a fastener mounting wall to which a fastener attached to an end of a belt is attached; and a plurality of mounting holes provided in the fastener mounting wall, wherein the fastener has a first engagement portion at one end in a width direction of the fastener and a second engagement portion at the other end in the width direction, at least some of the plurality of mounting holes have lateral mounting holes into which the fastener can be mounted such that the fastener is mounted in a lateral direction in which the width direction is along the longitudinal direction of the rail, the fastener mounting wall is provided with an engagement wall extending in the longitudinal direction, one end of the lateral mounting hole has a first edge which is part of the engagement wall and which engages with the first engagement portion during lateral mounting, and the other end of the lateral mounting hole has a second edge which is part of the engagement wall and which engages with the second engagement portion during lateral mounting, A rail, wherein thick plate walls extending in the longitudinal direction and thicker than the engagement walls are provided on both sides of the first edge portion and the second edge portion of the fastener mounting wall in the rail width direction perpendicular to the longitudinal direction.

2. The rail according to claim 1, wherein the dimension of the engaging wall in the thickness direction of each of said plank walls is 1.2 times or more as large as the thickness dimension of said engaging wall.

3. A rail as described in claim 1 or 2, wherein when the fastener attached to the lateral mounting hole is tilted in the rail width direction from a vertical mounting position extending perpendicular to the engagement wall, the fastener comes into contact with the thick plate wall when the angle of inclination from the vertical mounting position reaches an angle equal to or greater than a predetermined angle.

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