Detachable structure for vehicle loads

Abstract

To provide an attachment / detachment structure of a vehicle loaded object that enables the attachment / detachment of the vehicle loaded object to be easily performed and can ensure the fixing thereof.SOLUTION: An attachment / detachment structure of a vehicle loaded object comprises: a first engagement part 12 and a second engagement part 14 that are arranged on a loaded object 100; fixed holding means 16 that is fixed to a vehicle side and holds one of the first engagement part 12 and the second engagement part 14; and movable holding means 22 that is fixed to the vehicle side and holds the other of the first engagement part 12 and the second engagement part 14. The movable holding means 22 comprises: a movable part 28 that allows the operation of transition between a fixed position for holding the other engagement part and a released position separated from the other engagement part; and a locking mechanism 30 that restricts the operation of transition of the movable part 28 at the fixed position to the released position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a structure for attaching and detaching a load, and more particularly to a structure suitable for attaching and detaching a load to and from the roof or rear hatch (back door) of a vehicle. [Background technology]

[0002] In order to increase the capacity of a vehicle's loading space or to make effective use of the vehicle's passenger space, a loading box may be attached to the roof or rear hatch of the vehicle. Conventionally, such storage boxes were simply intended to increase loading capacity, so they were fixed to the vehicle. For this reason, the storage box was fixed in a structure that made it difficult to attach or detach from the outside.

[0003] However, in recent years, there has been an increase in cases where people carry a lot of luggage to their destination, including outdoor activities such as camping, and technology that allows people to easily attach and detach storage boxes attached to vehicles and carry the storage boxes as they are, as disclosed in Patent Documents 1 and 2, is attracting attention.

[0004] The technology disclosed in Patent Document 1 involves fixing a mounting base for a storage box to a mounting base for a spare tire installed in the rear hatch, and making the storage box detachable from the mounting base. The storage box is attached and detached from the mounting base by fitting the lower edge of a flange installed on the periphery of the mounting base with a concave-convex engagement into engaging portions installed on both side edges.

[0005] It is true that such a structure would make it easy to attach and detach the storage box and make it possible to carry the entire storage box. However, the structure of the engagement part in Patent Document 1 is unclear, and concerns remain as to whether attachment and detachment can be achieved smoothly and whether the box can be securely fixed.

[0006] The technology disclosed in Patent Document 2 is for making it possible to detachably mount a storage box on a carrier bar fixed to the roof. Specifically, a pair of fixing brackets is arranged to span two front and rear carrier bars that span the width of the vehicle. One of the pair of fixing brackets is formed with a locking claw, and the other is formed with a receiving hole. On the back surface of the storage box (the surface facing the fixing brackets), a receiving bracket with a locking hole that engages with the locking claw, and a hook bracket that can be inserted into the receiving hole are arranged. Then, the locking claw is inserted into the locking hole, and the hook bracket is inserted into the receiving hole, and the tightening bolt provided in the receiving hole is tightened to complete the fixing of the storage box.

[0007] This structure allows the storage box to be attached and detached simply by operating the tightening bolts from the outside. However, with the technology disclosed in Patent Document 2, the locking claw and the fixing claw must be inserted into the receiving holes from different directions, and the load, such as the storage box, must be moved three-dimensionally. As a result, if the weight of the load increases, the attachment and detachment operations may become difficult. In addition, tightening bolts operated by hand may loosen due to vibrations and shaking during driving. Furthermore, there is a concern that it is difficult to determine whether the tightening state is good or not. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 10-211851 [Patent Document 2] Registered Utility Model No. 3020403 Summary of the Invention [Problem to be solved by the invention]

[0009] Therefore, the present invention aims to solve the above problems and provide a structure for attaching and detaching a vehicle load that allows the vehicle load to be easily attached and detached while ensuring its secure fixation. [Means for solving the problem]

[0010] In order to achieve the above object, the mounting and detaching structure for a vehicle load according to the present invention comprises a first engagement portion arranged along one side that is a side around a first main surface of the load, a second engagement portion arranged along the other side provided at a position opposite to the one side, and a holding means that holds the first engagement portion and the second engagement portion by a combination of a fixed holding means and a first movable holding means or a combination of a second movable holding means and a first movable holding means, the fixed holding means and the second movable holding means being fixed to the vehicle side, and The first movable holding means and the second movable holding means are fixed to the vehicle side and are configured to hold the other of the first engagement portion or the second engagement portion, and the first movable holding means and the second movable holding means have a movable portion that enables transition between a fixed position that holds the one engagement portion or the other engagement portion and an open position that moves away from the one engagement portion or the other engagement portion, and a locking mechanism that restricts the transition of the movable portion to the open position when in the fixed position.

[0011] In addition, in the vehicle load mounting / detachment structure having the above features, the fixed holding means and the second movable holding means in the fixed position have a first recess provided in a direction along the surface on which the first main surface is located when the load is loaded, the first movable holding means has a second recess provided in the fixed position in a direction along the surface on which the first recess is formed, and the first engaging portion and the second engaging portion can be pins or protrusions that can be inserted into the first recess or the second recess. With these features, the engaging portion and the holding means can be fitted together in a concave-convex manner from a certain direction, making it possible to easily and reliably secure the load.

[0012] Furthermore, in the vehicle load mounting / detachment structure having the above features, the fixed holding means and the second movable holding means in the fixed position may have a first convex portion provided in a direction along a surface on which the first main surface is located when the load is loaded, the first movable holding means may have a second convex portion provided in the fixed position in a direction along a surface on which the first convex portion is formed, and the first engaging portion and the second engaging portion may be recesses into which the first convex portion or the second convex portion can be inserted. With such features, the engaging portion and the holding means can be fitted together in a fixed direction, making it possible to easily and reliably secure the load.

[0013] In addition, in the vehicle load attachment / detachment structure having the above-mentioned features, it is desirable that the first engagement portion and the second engagement portion have recesses in the load, and that the recesses allow at least a portion of the fixed holding means or the second movable holding means and the first movable holding means to interpose therein when the fixed holding means or the second movable holding means holds one of the engagement portions, and when the first movable holding means holds the other engagement portion. With this feature, when the load is secured by the fixed holding means or the movable holding means, the portion that protrudes beyond the outer periphery of the load is reduced. This makes it possible to reduce noise, such as wind noise, when the vehicle is traveling.

[0014] In the vehicle load mounting / detachment structure having the above-mentioned features, the fixed holding means or the second movable holding means and the first movable holding means may be provided in positions facing each other across the load. With this feature, even if the holding means located behind the load becomes invisible when the load is loaded, it is possible to align the load using the position of the movable holding means as a landmark.

[0015] In addition, in the vehicle load mounting / detachment structure having the above-mentioned features, the fixed holding means or the second movable holding means and the first movable holding means may be fixed to a base capable of supporting the weight of the load, and the first movable holding means and the second movable holding means may be configured so that their upper end surfaces are parallel to the support surface of the base when in the open position. With such features, the load can be stably mounted and slid even if the load straddles the movable holding means when mounted on the base.

[0016] In the vehicle load mounting and detachment structure having the above-mentioned features, the base may have a frame, and the fixed holding means or the second movable holding means and the first movable holding means may be arranged in different positions along the frame. With such features, the load can be secured regardless of its size.

[0017] Furthermore, in the vehicle load attachment / detachment structure having the above-mentioned features, the base may be attached to the carrier bar fixed to the vehicle via a mounting bracket whose position can be changed along the frame. With this feature, the base can be attached to the carrier bar regardless of the position (width) of the carrier bar. [Effects of the Invention]

[0018] According to the vehicle load attachment / detachment structure having the above-mentioned features, the vehicle load can be easily attached and detached, and the load can be securely fixed. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a side cross-sectional view showing the relationship between a fixed holding means, a movable holding means, and a load having a first engaging portion and a second engaging portion, which is a basic form of the detachable structure. FIG. [Figure 2] FIG. 10 is a side view showing the configuration of the fixing and holding means. [Figure 3]FIG. 10 is a side cross-sectional view showing the configuration of the movable holding means in a fixed position. [Figure 4] FIG. 10 is a side cross-sectional view showing the configuration of the movable holding means in the open position. [Figure 5] 10A and 10B are diagrams for explaining how a load is secured and released by the detachable structure according to the embodiment. [Figure 6] FIG. 2 is a perspective view showing the positional relationship between a base, a carrier bar, a fixed holding means, and a movable holding means. [Figure 7] FIG. 10 is a partial cross-sectional view illustrating a state in which the mounting bracket is fixed to the base. [Figure 8] 10 is a perspective view showing the shape of a mounting bracket applied to a carrier bar having a rectangular cross section. FIG. [Figure 9] FIG. 10 is a perspective view showing the form of a mounting bracket applied to a carrier bar having a T-groove on the upper surface. [Figure 10] FIG. 10 is a perspective view showing an example in which a base is fixed to a carrier bar provided with a T-shaped groove. [Figure 11] 10A and 10B are diagrams showing a first modified example of the attachment / detachment structure according to the embodiment. [Figure 12] FIG. 12 is a diagram showing an E-E cross section in FIG. [Figure 13] FIG. 10 is a perspective view showing a second modified example of the detachable structure according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle load attachment / detachment structure according to the present invention will be described in detail below with reference to the drawings. [Basic embodiment: Configuration] First, a basic embodiment of a vehicle load attachment / detachment structure (hereinafter simply referred to as the attachment / detachment structure 10) will be described with reference to FIGS. 1 to 10. In the drawings, FIG. 1 is a side cross-sectional view showing the relationship between a fixed holding means, a movable holding means, and a load having a first engagement portion and a second engagement portion, which is the basic form of the attachment / detachment structure. FIG. 2 is a side view showing the form of the fixed holding means, and FIG. 3 is a side cross-sectional view showing the form of the movable holding means in the fixed position. FIG. 4 is a side cross-sectional view showing the form of the movable holding means in the released position. FIG. 5 is a diagram for explaining how a load is attached and released by the attachment / detachment structure according to the embodiment. FIG. 6 is a perspective view showing the positional relationship between a base and a carrier bar, and between the fixed holding means and the movable holding means. FIG. 7 is a partial cross-sectional view for explaining the fixed state of a mounting bracket to the base. FIG. 8 is a perspective view showing the form of a mounting bracket applied to a carrier bar having a rectangular cross-section. FIG. 9 is a perspective view showing the form of a mounting bracket applied to a carrier bar having a T-shaped groove on its upper surface. FIG. 10 is a perspective view showing an example in which a base is fixed to a carrier bar having a T-shaped groove.

[0021] The detachable structure 10 according to this embodiment is basically composed of a first engagement portion 12, a second engagement portion 14, a fixed holding means 16, and a movable holding means (first fixed holding means) 22. In the detachable structure 10 according to this embodiment, the fixed holding means 16 and the movable holding means 22 are positioned via a base 50 fixed to a carrier bar 60 attached to the roof of the vehicle (see FIG. 6). The base 50 according to this embodiment is made up of a frame 52 assembled into a rectangular frame shape, and is attached to the carrier bar fixed to the vehicle via mounting brackets 54, the details of which will be described later. In addition, the first engagement portion 12 and the second engagement portion 14 are arranged on the exterior of the load.

[0022] The first engagement portion 12 and the second engagement portion 14 are elements held by a fixed holding means 16 and a movable holding means 22, the details of which will be described later, and in this embodiment, the first engagement portion 12 and the second engagement portion 14 have the same structure. Specifically, the first engagement portion 12 and the second engagement portion 14 according to this embodiment are configured by one side 100a1 around the first main surface 100a of the load 100 (the surface that will be disposed opposite a vehicle that loads the load 100 onto the vehicle), recesses 12b, 14b provided along the other side 100a2 disposed opposite to this one side 100a1, and pins 12a, 14a provided relative to these recesses 12b, 14b along the arrangement direction of the sides that constitute the first main surface 100a.

[0023] The fixing and holding means 16 is an element for engaging either the first engaging portion 12 or the second engaging portion 14 (hereinafter, in this embodiment, it is assumed that one is the first engaging portion 12 and the other is the second engaging portion 14). In this embodiment, it has a configuration including a fixing portion 18 and a holding portion 20, and is fixed so as to stand vertically on the frame 52 of the base 50 via the fixing portion 18. The load 100 is loaded so that the first main surface 100a is along the frame 52 of the base 50. Therefore, by setting the fixing and holding means 16 so as to stand vertically on the frame 52, it becomes possible to stop the load 100 that has slid relative to the frame 52 and to position it.

[0024] The holding portion 20 is configured as a recess provided in a direction (indicated by arrow A) along the surface on which the first main surface 100a of the load 100 is placed. The opening of the recess is arranged to face the arrangement direction of the movable holding means 22, which will be described in detail later. With this configuration, the load 100 can be sandwiched between the fixed holding means 16 and the movable holding means 22. The pin 12a constituting the first engagement portion 12 is inserted into the recess constituting the holding portion 20. Therefore, the holding portion 20 is arranged at a height where the pin 12a is located when the load 100 is placed on the frame 52. With this configuration, the pin 12a constituting the first engagement portion 12 can be inserted into the holding portion 20 (recess) simply by sliding the load 100 placed on the frame 52 toward the fixed holding means 16.

[0025] The movable holding means 22 is an element for engaging either the first engagement portion 12 or the second engagement portion 14 (the second engagement portion 14 in this embodiment). In this embodiment, the movable holding means 22 includes a fixed portion 24, a holding portion 26, a movable portion 28, and a locking mechanism 30, and is fixed to the frame 52 of the base 50 via the fixed portion 24. The movable portion 28 is a rotating element that transitions the holding portion 26 of the movable holding means 22 between a fixed position and an open position. Here, the fixed position refers to a position in which the movable portion 28 stands perpendicular to the frame 52. On the other hand, the open position refers to a state in which the movable portion 28 is in a position that is not perpendicular to the frame 52, and in this embodiment, the open position is particularly a position in which the movable portion 28 is parallel to the frame 52. By setting the open position of the movable section 28 to a position parallel to the frame 52, when placing the load 100 on the frame 52 of the base 50, even if the load 100 is placed so as to straddle the movable holding means 22, there is no risk of the load 100 climbing up onto the movable holding means 22 and becoming tilted. Therefore, the load 100 can be slid toward the fixed holding means 16 while maintaining a stable state.

[0026] The locking mechanism 30 is an element that maintains the position of the movable part 28 when it is in the locked position, i.e., prevents the movable part 28 from transitioning to the open position. The specific configuration of the locking mechanism 30 is not critical as long as it fulfills its function. For example, as shown in FIGS. 3 and 4, the locking mechanism 30 may include a cam 30a, a stopper 30b, and a release lever 30c. The cam 30a rotates (moves in the direction indicated by arrow C) in conjunction with the rotation of the movable part 28 (moves in the direction indicated by arrow B), and has a stepped portion 30a1 on a portion of its outer periphery. The stopper 30b is an element that engages with the stepped portion 30a1 of the cam 30a when the movable part 28 reaches the locked position, preventing the rotation of the cam 30a, i.e., the rotation of the movable part 28. The release lever 30c is an element that lifts the stopper 30b, which has engaged the stepped portion 30a1, from the stepped portion 30a1, thereby enabling the rotation of the cam 30a. In this embodiment, the release lever 30c is a lever that can rotate (in the direction indicated by arrow D) about a fulcrum 30d, and this lever is biased toward the cam 30a. A stopper 30b is attached to the release lever 30c. With this configuration, when the movable part 28 reaches the fixed position, the biasing force on the release lever 30c automatically causes the stopper 30b to intervene in the stepped part 30a1, restricting the rotation of the movable part 28. When the rotation of the movable part 28 is restricted, the stopper 30b is pulled up from the stepped part 30a1 by operating the release lever 30c, allowing the movable part 28 to rotate.

[0027] The holding portion 26 is configured as a recess provided in a direction (indicated by arrow A) along the surface on which the first main surface 100a of the load 100 is placed when the movable portion 28 is in the fixed position. The opening of the recess is configured to face the arrangement direction of the fixed holding means 16 described above. This configuration allows the load 100 to be sandwiched between the fixed holding means 16 and the movable holding means 22. The pin 14a constituting the second engagement portion 14 is inserted into the recess constituting the holding portion 26. Therefore, the holding portion 26 is provided at a height where the pin 14a is located when the load 100 is placed on the frame 52. With this configuration, with the load 100 placed on the frame 52, simply by moving the movable portion 28 from the open position to the fixed position, the pin 14a constituting the second engagement portion 14 can be inserted into the holding portion 26 (recess).

[0028] Here, the holding portion 20 of the fixed holding means 16 has a straight recess, but the recess constituting the holding portion 26 of the movable holding means 22 has a vertically wavy side shape as shown in detail in Figures 3 and 4. With this configuration, a gap is less likely to occur between the pin 14a inserted from the opening side of the holding portion 26 and the upper surface of the recess as the movable portion 28 rotates. Therefore, rattle of the fixed load 100 can be suppressed.

[0029] Furthermore, in the detachable structure 10 according to this embodiment, the movable holding means 22 is provided with a cover 32 for preventing the operation of the release lever 30c, and this cover 32 is provided with a key 32a for restricting the opening and closing operation of the cover 32. With this configuration, the detachable structure 10 can prevent the movable holding means 22 from transitioning to the open position due to the operation of the release lever 30c caused by tampering or a malfunction.

[0030] Furthermore, in the detachable structure 10 according to this embodiment, the movable part 28 is provided with an abutment part 34, which is configured to abut against the exterior of the fixed part 24 and transmit the load when the movable part 28 is in the open position. With this configuration, a vertical load applied to the movable part 28 in the open position is transmitted to the exterior of the fixed part via the abutment part 34. Therefore, even if a large load is applied to the movable part 28 in the open position, such as when a load 100 is placed on it, damage to the movable part 28 can be prevented.

[0031] 7, the frame 52 of the base 50 according to this embodiment has a substantially triangular cross section, and a guide groove 52a is formed on the side located on the inner periphery of the base 50, which is configured by assembling the frame 52 to form a frame shape. The mounting bracket 54 is disposed in this guide groove 52a via a nut 56 and a bolt 58, thereby enabling movement and positioning according to the arrangement of the frame 52.

[0032] The mounting bracket 54 can be of a type that clamps a rod-shaped carrier bar 60 as shown in Fig. 8, or can be of a type that is compatible with a carrier bar 60a with a T-slot as shown in Fig. 9 (see Fig. 10). In the mounting bracket 54 shown in Fig. 8, the carrier bar 60 is passed through an upper part of a latch 54b that is hung between a pair of side frames 54a provided in the lower half, and is fixed to the carrier bar 60 by pressing down with a pressing bolt 54c. In addition, in the fixing bracket 54 shown in Fig. 9, the nut 54d is inserted into the T-slot of the carrier bar 60a, and the nut 54d is pulled up with a tightening bolt 54e and pressed against the T-slot, thereby fixing to the carrier bar 60a.

[0033] [Effect] Next, with reference to FIG. 5, the securing and releasing of the load 100 by the detachable structure 10 configured as described above will be described. In the detachable structure 10 configured as described above, first, as shown in FIG. 5(A), the movable portion 28 of the movable holding means 22 is set to the open position, and the load 100 is placed on the frame 52 of the base 50. Next, as shown in FIG. 5(B), the load 100 placed on the frame 52 is slid toward the fixed holding means 16, and the pin 12a of the first engagement portion 12 is inserted into the holding portion 20 of the fixed holding means 16. After the pin 12a of the first engagement portion 12 is inserted into the holding portion 20, the movable portion 28 of the movable holding means 22 is rotated to the fixed position, and the pin 14a of the second engagement portion 14 is inserted into the holding portion 26, as shown in FIG. 5(C). When the movable holding means 22 transitions to the fixed position, the locking mechanism 30 operates with the pin 14a of the second engagement portion 14 intervening in the holding portion 26, completing the fixation of the load 100. When the fixation of the load 100 is complete, the cover 32 provided on the movable holding means 22 seals the release lever 30c and locks it with the key 32a, thereby preventing the locking mechanism 30 from being released by tampering or malfunction.

[0034] To unload the load 100 (to release the load 100 from its fixed state), the key 32a of the cover 32 is unlocked, the cover 32 is opened, and the release lever 30c of the locking mechanism 30 is operated to lift the stopper 30b from the stepped portion 30a1 of the cam 30a, thereby releasing the locked state of the locking mechanism 30. By releasing the locked state, the movable portion 28 of the movable holding means 22 can be rotated from the fixed position to the open position. After the movable portion 28 is moved to the open position, the load 100 is moved in a direction away from the fixed holding means 16, whereby the pin 12a of the first engagement portion 12 is withdrawn from the holding portion 20, and the load 100 is released from its fixed state. After the pin 14a is withdrawn from the holding portion 20, the load 100 is lowered from the base 50, thereby completing the unloading of the load 100.

[0035] [effect] According to the detachable structure 10 having the above-described features, after the load 100 is placed on the base 50, it can be positioned, fixed, and removed simply by sliding it on a flat surface. This allows the load 100 to be easily attached and detached while ensuring reliable fixation. Furthermore, by arranging the fixed holding means 16 and the movable holding means 22 in opposing positions, even if the fixed holding means 16 is located in a blind spot due to the load 100 and cannot be visually observed when the load 100 is placed on the base 50, the pin 12a of the first engaging portion 12 can be inserted into the holding portion 20 of the fixed holding means 16 by positioning the second engaging portion 14 to align with the position of the movable holding means 22.

[0036] Furthermore, when the movable part 28 of the movable holding means 22 is moved to the open position, its upper end is made parallel to the frame 52 of the base 50, which makes it possible to stably load and slide the load 100, and also makes it possible to use the movable holding means 22 as a foothold when loading the load 100.

[0037] Furthermore, by providing recessed portion 14b that allows a portion of fixed holding means 16 and movable holding means 22 to be inserted when first engaging portion 12 and second engaging portion 14 are attached to load 100, it is possible to reduce the portion exposed to the outside when load 100 is fixed. This makes it possible to suppress wind noise and the like when the vehicle is traveling.

[0038] Furthermore, by allowing the fixing positions of the fixed holding means 16, the movable holding means 22, and the mounting brackets 54 to be freely changed along the frame 52, it becomes possible to fix the load 100 to the desired size within the range of frame 52 sizes, regardless of the size of the load 100 or the placement width of the carrier bar 60.

[0039] [First Modification] Next, a first modified example of the detachable structure 10 according to the embodiment will be described with reference to Figures 11 and 12. The basic structure of this modified example is the same as that of the detachable structure 10 according to the basic form described above. Therefore, parts that have the same functions will be given the same reference numerals in the drawings and detailed description will be omitted.

[0040] In the above embodiment, it has been described that the load 100 is box-shaped, and the first engagement portion 12 and the second engagement portion 14 are configured by arranging recesses 14b and pins 14a in the exterior portion of the load 100. However, the load 100 is not limited to being box-shaped. For example, it may be a dolly 110 as shown in FIGS. 11 and 12. The shape of the dolly 110 is not important, but in the example shown in FIGS. 11 and 12, it has a dolly body 112 equipped with wheels 114 and a guide pipe 116 provided on the upper part of the dolly body 112.

[0041] In this modified example, the first engagement portion 12 and the second engagement portion 14 are arranged on a pair of main frames 112a arranged along the longitudinal direction of the dolly body 112. In this way, even if the first engagement portion 12 and the second engagement portion 14 are provided so as to protrude from the dolly 110 as a load, the dolly 110 as a load can be stably fixed and ease of attachment and detachment can be ensured.

[0042] [Second Modification] Furthermore, the load to which the detachable structure 10 according to the embodiment is applied does not necessarily have to be intended to be attached or detached when the load is in use. For example, as shown in Fig. 13, a bicycle carrier 120 may be used as the load, with the first engagement portion 12 (not shown in Fig. 13) and the second engagement portion 14 disposed on the base frame of the bicycle carrier 120. In this way, by configuring a carrier specialized for a specific purpose to be detachable, it becomes possible to easily and quickly attach and detach the dedicated carrier depending on the purpose of use. [Industrial Applicability]

[0043] In the above embodiment and modified example, the first engagement portion 12 and the second engagement portion 14 are shown as being fixed (permanently installed) to the load 100. However, if the first engagement portion 12 and the second engagement portion 14 can be reliably fixed, the first engagement portion 12 and the second engagement portion 14 may be retrofitted to the load 100. This is because even with such a configuration, the load 100 can still be easily attached and detached while still being reliably fixed. Furthermore, with such a configuration, the first engagement portion 12 and the second engagement portion 14 can be shared and used by multiple loads 100.

[0044] In the above embodiment, the first engaging portion 12 and the second engaging portion 14 are formed as pins 12a and 14a (convex portions), the holding portion 20 of the fixed holding means 16 and the holding portion 26 of the movable holding means 22 are formed as concave portions, and the pins 12a and 14a are inserted into the holding portions 20 and 26. However, these convex and concave relationships are not limited to these. For example, although not shown, the first engaging portion 12 and the second engaging portion 14 may be formed as concave portions (recessed portions), and the holding portion 20 of the fixed holding means 16 and the holding portion 26 of the movable holding means 22 may be formed as convex portions (first convex portions and second convex portions). This is because even with such a configuration, the procedure and effort required to attach and detach the load 100 remains unchanged.

[0045] In the above embodiment and modified example, the detachable structure 10 is described as holding the first engagement portion 12 and the second engagement portion 14 by the fixed holding means 16 and the movable holding means 22. However, the detachable structure 10 according to the present invention can be realized even if both the holding means for holding the first engagement portion 12 and the second engagement portion 14 are the movable holding means 22 (the first movable holding means and the second movable holding means). Specifically, the fixed holding means 16 can be replaced with a second movable holding means, and the load 100 can be sandwiched between the first movable holding means and the second movable holding means. Here, the first movable holding means and the second movable holding means can have the same configuration, and both can be similar to the movable holding means 22 described above. With this configuration, if the width (length) of the load 100 is the same as the width of the vehicle, the load 10 can be loaded and lowered from both sides of the vehicle.

[0046] In the above embodiment and modified examples, the fixed holding means 16 and the movable holding means 22 are described as being fixed to the base 50 which is fixed to the carrier bar 60 attached to the roof of the vehicle. However, the fixed holding means 16 and the movable holding means 22 can be fixed to any part of the vehicle or an element attached thereto. In other words, the fixed holding means 16 and the movable holding means 22 may be disposed in the rear hatch or the interior of the vehicle. [Explanation of symbols]

[0047] 10....Detachable structure, 12....First engagement portion, 12a....Pin, 12b....Recessed portion, 14....Second engagement portion, 14a....Pin, 14b....Recessed portion, 16....Fixed holding means, 18....Fixed portion, 20....Retaining portion, 22....Movable holding means, 24....Fixed portion, 26....Retaining portion, 28....Movable portion, 30....Lock mechanism, 30a....Cam, 30a1....Step portion, 30b....Stopper, 30c....Release lever, 30d....Fulcrum, 32....Cover, 32a....Key, 34....Abutment portion, 50....Base, 52.... ...Frame, 52a...Guide groove, 54...Mounting bracket, 54a...Side frame, 54b...Latch, 54c...Press bolt, 54d...Nut, 54e...Tightening bolt, 56...Nut, 58...Bolt, 60, 60a...Carrier bar, 100...Load, 100a...First main surface, 100a1...One side, 100a2...Other side, 110...Cart, 112...Cart body, 112a...Main frame, 114...Wheel, 116...Guide pipe, 120...Bicycle carrier.

Claims

1. a first engaging portion disposed along one side of the load, which is a side around the first main surface of the load; and a second engaging portion disposed along the other side provided at a position opposite to the one side; a holding means for holding the first engaging portion and the second engaging portion by a combination of a fixed holding means and a first movable holding means or a combination of a second movable holding means and a first movable holding means, the fixed holding means and the second movable holding means are fixed to the vehicle side and hold either the first engagement portion or the second engagement portion, and the first movable holding means is fixed to the vehicle side and holds the other of the first engagement portion or the second engagement portion, the first movable holding means and the second movable holding means each have a movable part that can transition between a fixed position that holds the one engaging portion or the other engaging portion and an open position that is separated from the one engaging portion or the other engaging portion, a locking mechanism that restricts the movable part from transitioning to the open position when in the fixed position, and a cover that can open and close and covers a part of the locking mechanism when in a closed state; The locking mechanism is provided with a release lever that releases the function of the locking mechanism, and the cover is configured to restrict the operation of the release lever, which is in a locked state, when in a closed state.

2. the fixed holding means and the second movable holding means in the fixed position have a first recess provided in a direction along a plane on which the first main surface is disposed when the load is loaded, the first movable holding means has a second recess provided in a direction along a surface on which the first recess is formed at the fixed position; 2. The vehicle load attachment / detachment structure according to claim 1, wherein the first engagement portion and the second engagement portion are pins or protrusions that can be inserted into the first recess or the second recess.

3. the fixed holding means and the second movable holding means in the fixed position have a first convex portion provided in a direction along a plane on which the first main surface is disposed when the load is loaded, the first movable holding means has a second convex portion provided in a direction along a formation surface of the first convex portion at the fixed position, 2. The vehicle load attachment / detachment structure according to claim 1, wherein the first engagement portion and the second engagement portion are recesses into which the first protrusion or the second protrusion can be inserted.

4. The first engaging portion and the second engaging portion are provided with recessed portions in the load, 4. A vehicle load attachment / detachment structure as described in any one of claims 1 to 3, characterized in that the recess allows at least a portion of the fixed holding means or the second movable holding means and the first movable holding means to intervene when the fixed holding means or the second movable holding means holds one of the engagement portions, and when the first movable holding means holds the other engagement portion.

5. The movable parts constituting the first movable holding means and the second movable holding means are configured to perform the transitional operation via fixed parts, 5. A vehicle load attachment / detachment structure as described in any one of claims 1 to 4, characterized in that the movable part is provided with an abutment part that abuts against the exterior of the fixed part when transitioned to the open position, and transmits the vertical load applied to the movable part in the open position to the fixed part.

6. the fixed holding means or the second movable holding means and the first movable holding means are fixed to a base capable of supporting the weight of the load, 6. A vehicle load attachment / detachment structure as described in any one of claims 1 to 5, characterized in that the first movable holding means and the second movable holding means are configured so that, when in the open position, their upper end surfaces are parallel to the support surface of the base.

7. The base has a frame, 7. The vehicle load attachment / detachment structure according to claim 6, wherein the fixed holding means or the second movable holding means and the first movable holding means are arranged in positions that can be changed along the frame.

8. The vehicle load attachment / detachment structure according to claim 7, characterized in that the base is attached to a carrier bar fixed to the vehicle via a mounting bracket whose position can be changed along the frame.

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