Physical distribution rack for annular body conveyance

Abstract

To provide a physical distribution rack for conveying an annular body capable of achieving both durability and compactness in storage at a higher level.SOLUTION: An outer frame body 3, a plurality of shelves 3 mounted on the outer frame body and arranged along a vertical direction, and a plurality of shelf receiving parts 4 fixed to the outer frame body and configured to receive the plurality of shelves, wherein the outer frame body defines a virtual rear surface and a first virtual side surface of the outer frame body, and is substantially L-shaped in a horizontal projection plane; And a second side frame portion that defines a second imaginary side surface of the outer frame, the second side frame portion being configured not to be deformed, wherein each of the plurality of shelves is configured to be rotatable about a separate horizontal rotation axis fixed with respect to the L-shaped frame portion so as to be displaceable between a shelf unfolded state in which the shelf is received by the corresponding shelf receiving portion and a shelf folded state in which the shelf is folded toward the imaginary rear surface.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a logistics rack for transporting circular objects. [Background technology]

[0002] BACKGROUND ART Conventionally, there are foldable transport racks (for example, Patent Document 1). [Prior art documents] [Non-patent literature]

[0003] [Patent Document 1] Utility Model Registration No. 3209255 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, when transporting annular objects such as tires or pulp rolls using a rack, the rack may need to be highly strong. Conventional transport racks have room for improvement in both durability and compactness when stored.

[0005] An object of the present invention is to provide a logistics rack for transporting ring-shaped objects that is capable of achieving both durability and compactness when stored at a higher level. [Means for solving the problem]

[0006] [1] A logistics rack for transporting circular objects, An outer frame body; a plurality of shelves attached to the outer frame and arranged along the vertical direction; a plurality of shelf support portions fixed to the outer frame and configured to receive the plurality of shelves; Equipped with The outer frame body is an L-shaped outer frame portion that defines a virtual rear surface and a first virtual side surface of the outer frame body, has a substantially L-shape in a horizontal projection plane, and is configured not to deform; a second side surface outer frame portion defining a second imaginary side surface of the outer frame body; Equipped with The plurality of shelves are configured to be rotatable about separate horizontal rotation axes fixed to the L-shaped outer frame portion so as to be displaceable between a shelf-opened state in which the shelves are received by the corresponding shelf receiving portions and a shelf-folded state in which the shelves are folded toward the imaginary rear surface, A logistics rack for transporting ring-shaped objects, wherein the second side surface outer frame portion is configured to be rotatable about a vertical axis of rotation fixed to the L-shaped outer frame portion so as to be displaceable between a side expanded state in which the second side surface outer frame portion faces the first imaginary side surface and a side folded state in which the second side surface outer frame portion is folded toward the imaginary rear surface when the multiple shelves are in the shelf folded state.

[0007] [2] A logistics rack for transporting ring-shaped objects as described in [1], further comprising a shelf folded state locking section configured to lock the shelf relative to the L-shaped outer frame section when the shelf is in the shelf folded state.

[0008] [3] The shelf folding state locking portion is configured as a latching lock. Logistics rack for transporting large objects.

[0009] [4] A logistics rack for transporting ring-shaped objects described in any one of [1] to [3], further comprising a shelf expanded state locking unit configured to lock the lowest shelf to the L-shaped outer frame unit and the second side outer frame unit when the second side outer frame unit is in the side expanded state and the lowest shelf is in the shelf expanded state.

[0010] [5] A logistics rack for transporting ring-shaped objects as described in [4], wherein the shelf expanded state locking section is configured as a slide latch type.

[0011] [6] The logistics rack for transporting ring-shaped objects according to any one of [1] to [5], wherein the pitch intervals between the plurality of shelves become smaller toward the upper side.

[0012] [7] A logistics rack for transporting ring-shaped objects described in any one of [1] to [6], further comprising a side temporary fastening portion configured to temporarily fasten the second side outer frame portion to the L-shaped outer frame portion when the second side outer frame portion is in the side folded state.

[0013] [8] A logistics rack for transporting circular objects as described in [7], wherein the side temporary fastening portion is configured as a magnet.

[0014] [9] A logistics rack for transporting ring-shaped objects described in any one of [1] to [8], further comprising a shelf temporary fastening portion configured to temporarily fasten the shelf to the L-shaped outer frame portion when the shelf is in the shelf folded state.

[0015]

[10] A logistics rack for transporting circular objects as described in [9], wherein the shelf temporary fastening portion is configured as a pipe clip type or a magnet type.

[0016]

[11] The logistics rack for transporting circular objects described in any one of [1] to

[10] , wherein the logistics rack for transporting circular objects is configured to be used for transporting tires as circular objects. [Effects of the Invention]

[0017] According to the present invention, it is possible to provide a logistics rack for transporting ring-shaped objects that is capable of achieving both durability and compactness when stored at a higher level. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view schematically showing a logistics rack for transporting ring-shaped objects according to an embodiment of the present invention in a rack-opened state, as viewed obliquely from above and in front thereof; [Figure 2] FIG. 2 is an enlarged view of part A in FIG. 1. [Figure 3] 3 is a view taken in the direction of arrow C in FIG. 2, showing a part of FIG. 2 as viewed in the direction of arrow C. FIG. [Figure 4] 2 is a perspective view schematically showing the logistics rack for transporting ring-shaped objects of FIG. 1 as viewed obliquely from below and in front. FIG. [Figure 5] 5 is an enlarged view of part D in FIG. 4. FIG. [Figure 6] 2 is a view taken in the direction of arrow E in FIG. 1, showing a part of FIG. 1 as viewed in the direction of arrow E. [Figure 7] FIG. 7 is an enlarged view of the F portion of FIG. 6. [Figure 8] 7 is a view taken in the direction of arrow G in FIG. 6, showing a part of FIG. 6 as viewed in the direction of arrow G in FIG. [Figure 9] 2 is a bottom view schematically showing the logistics rack for transporting annular objects of FIG. 1 as viewed from below. FIG. [Figure 10] 2 is a front view schematically showing the logistics rack for transporting ring-shaped objects of FIG. 1 loaded with a plurality of ring-shaped objects when in use, as seen from the front side. FIG. [Figure 11] 2 is a side view schematically showing the logistics rack for transporting ring-shaped objects of FIG. 1 loaded with a plurality of ring-shaped objects when in use, as viewed from a second widthwise side. FIG. [Figure 12] 2 is a perspective view showing a logistics rack for transporting ring-shaped objects, viewed obliquely from above and in front, with all shelves except the lowest shelf folded from the unfolded state of the rack in FIG. 1. [Figure 13] 13 is an enlarged view of the part H in FIG. 12. FIG. [Figure 14] 13 is a perspective view schematically showing the logistics rack for transporting ring-shaped objects, with the lowest shelf further folded from the state shown in FIG. 12, as viewed obliquely from above the front. FIG. [Figure 15] This is a perspective view showing, from the state of Figure 14, the logistics rack for transporting ring-shaped objects, in which the second side outer frame portion is brought into a side-folded state, thereby bringing the rack into a folded state, as seen diagonally from above and in front. [Figure 16] 16 is a view taken in the direction of arrow J in FIG. 15, showing a part of FIG. 15 as viewed in the direction of arrow J. FIG. [Figure 17] 16 is a top view schematically showing the logistics rack for transporting annular objects of FIG. 15 as viewed from above. FIG. [Figure 18] 18 is a top view schematically showing a state in which a plurality of the logistics rack for transporting annular objects shown in FIG. 17 are stacked and stored when stored, as viewed from above. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] The logistics rack for transporting ring-shaped objects according to the present invention can be used to transport any ring-shaped object AB, such as a tire.

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a logistics rack for transporting annular objects according to the present invention will be described with reference to the drawings. In each drawing, the same members and parts are designated by the same reference numerals.

[0021] 1 to 18 are diagrams illustrating a logistics rack 1 for transporting annular objects according to one embodiment of the present invention. The logistics rack 1 for transporting ring-shaped objects of this embodiment is configured to be used to transport tires as ring-shaped objects AB (FIGS. 10 and 11). However, the logistics rack 1 for transporting ring-shaped objects of each example described in this specification may be configured to be used to transport any ring-shaped object AB (annular object) other than tires.

[0022] The logistics rack 1 for transporting ring-shaped objects is configured to be foldable. 1 to 11, the logistics rack 1 for transporting ring-shaped objects is not folded but is in a fully unfolded state (referred to in this specification as an "unfolded rack state"). The logistics rack 1 for transporting ring-shaped objects is in the unfolded rack state when used to transport ring-shaped objects AB (FIGS. 10 to 11). 15 to 18, the logistics rack 1 for transporting ring-shaped objects is in a completely folded state (referred to as a "folded rack state" in this specification). The logistics rack 1 for transporting ring-shaped objects is in the folded rack state when stored (FIG. 18). 12 to 14, the logistics rack 1 for transporting ring-shaped objects is in a state between the unfolded rack state and the folded rack state, with only a portion folded, as will be described in detail later.

[0023] In this specification, for the sake of convenience, the "up-down direction (vertical direction) (UDD)", "front-rear direction (FRD)", and "width direction (WD)" are respectively defined as being fixed to the logistics rack 1 for transporting ring-shaped objects. The up-down direction (UDD) (sometimes referred to as the "vertical direction" or "plumbing" in this specification) is oriented so as to be perpendicular to the floor or ground when in use or when stored. The front-rear direction and width direction are each perpendicular ( Thus, they are parallel to the horizontal direction and perpendicular to each other. The width direction (WD) is also known as the left-right direction. In this specification, the direction perpendicular to the up-down direction (vertical direction) (UDD) is referred to as the "horizontal direction," "horizontal," etc. In this specification, for ease of explanation, the "upper side" (US) and "lower side" (DS) in the vertical direction will be referred to simply as "upper side" and "lower side", etc., the "front side" (FS) and "rear side" (RS) in the front-to-rear direction will be referred to simply as "front side" and "rear side", etc., one side in the width direction will be referred to as the "first width side" (WD1), the other side in the width direction will be referred to as the "second width side" (WD2), the side closer to the center of the logistics rack 1 for transporting ring-shaped objects in the width direction will be referred to as the "inner width side" (WDI), and the side farther from the center of the logistics rack 1 for transporting ring-shaped objects in the width direction will be referred to as the "outer width side" (WDO). In each figure, these directions are indicated with arrows. In the illustrated example, the first widthwise side is the right side and the second widthwise side is the left side, but in each example described in this specification, the first widthwise side may be the left side and the second widthwise side may be the right side.

[0024] As shown in FIG. 1 and other figures, the logistics rack 1 for transporting annular objects includes an outer frame 2, a plurality of shelves 3, and a plurality of shelf support portions 4. The shelves 3 are each attached to the outer frame 2 and are arranged in a vertical direction. The plurality of shelf support portions 4 are each fixed to the outer frame body 2 and configured to receive the plurality of shelves 3.

[0025] The outer frame body 2 includes an L-shaped outer frame portion L and a second side outer frame portion N.

[0026] The L-shaped outer frame portion L defines the imaginary rear surface VRS and the first imaginary side surface VSA1 of the outer frame body 2, and is substantially L-shaped in a horizontal projection plane. The horizontal projection plane refers to the projection plane when viewed by projecting it onto a horizontal plane in the up-down direction from above or below (as in Figures 9 and 17). The imaginary rear surface VRS of the outer frame body 2 forms the imaginary rear surface of the outer frame body 2 and is a substantially rectangular imaginary flat surface parallel to the width direction and the up-down direction. The first imaginary side surface VSA1 of the outer frame body 2 forms the imaginary surface on the first width direction side of a pair of imaginary side surfaces on both sides of the outer frame body 2 in the width direction and is a substantially rectangular imaginary flat surface parallel to the front-rear direction and the up-down direction. The L-shaped outer frame portion L is configured to be non-deformable. That is, the L-shaped outer frame portion L is made of a rigid body such as metal (steel, etc.), and is configured so that the L-shaped outer frame portion L itself cannot be deformed by folding, etc. The L-shaped outer frame portion L may be formed by connecting multiple separate members by fastening, welding, adhesive, etc., or may be formed of only one member.

[0027] More specifically, in this embodiment, the L-shaped outer frame portion L has an L-shaped bottom frame portion LA, a first front vertical column portion LB, a first rear vertical column portion LC, a second rear vertical column portion LD, an upper horizontal column portion LE, multiple intermediate horizontal column portions LF, and an auxiliary rod portion LG (Figure 1).

[0028] The L-shaped bottom frame portion LA (FIG. 6) of the L-shaped outer frame portion L is substantially L-shaped in a horizontal projection plane (FIGS. 9 and 17). The L-shaped bottom frame portion LA has a front-rear bottom frame portion LA1 extending in the front-rear direction and a widthwise bottom frame portion LA2 extending in the width direction. The end of the widthwise bottom frame portion LA2 on the first width direction side is connected to the rear end of the front-rear bottom frame portion LA1. The front-rear bottom frame portion LA1 and the width-wise bottom frame portion LA2 each have vertical bottom frame portions LA1V, LA2V extending vertically and horizontal bottom frame portions LA1H, LA2H extending horizontally from the lower ends of the vertical bottom frame portions LA1V, LA2V. The vertical bottom frame portions LA1V, LA2V and the horizontal bottom frame portions LA1H, LA2H are each plate-shaped. The horizontal bottom frame portion LA1H of the front-rear bottom frame portion LA1 extends from the lower end of the vertical bottom frame portion LA1V of the front-rear bottom frame portion LA1 toward the second width direction side. The horizontal bottom frame portion LA2H of the widthwise bottom frame portion LA2 extends forward from the lower end of the vertical bottom frame portion LA2V of the widthwise bottom frame portion LA2.

[0029] The first front vertical pillar LB, the first rear vertical pillar LC, and the second rear vertical pillar LD of the L-shaped outer frame L each extend in the up-down direction. The lower end of the first front vertical pillar LB is connected to the front end of the front-rear direction bottom frame portion LA1 of the L-shaped bottom frame portion LA. The first rear vertical column LC is provided at a position spaced rearward from the first front vertical column LB. The lower end of the first rear vertical column LC is connected to the rear end of the front-rear bottom frame portion LA1 of the L-shaped bottom frame portion LA (and thus to the end of the widthwise first side of the widthwise bottom frame portion LA2). The second rear vertical column LD is provided at a position spaced apart from the first rear vertical column LC on the second widthwise side, and the lower end of the second rear vertical column LD is connected to the end of the widthwise bottom frame portion LA2 of the L-shaped bottom frame portion LA on the second widthwise side.

[0030] The upper horizontal pillar LE of the L-shaped outer frame L connects the upper end of the first front vertical pillar LB and the upper end of the first rear vertical pillar LC, and extends in the front-rear direction.

[0031] The multiple (two in this embodiment) intermediate horizontal columns LF of the L-shaped outer frame L are positioned between the L-shaped bottom frame LA and the upper horizontal column LE in the vertical direction, and are arranged at intervals from one another along the vertical direction. One intermediate horizontal column LF is provided for each shelf 3. Each of the multiple intermediate horizontal columns LF connects the first front vertical column LB and the first rear vertical column LC, and extends in the front-to-rear direction.

[0032] The auxiliary rod LG of the L-shaped outer frame L is located between the first front vertical column LB and the first rear vertical column LC in the front-to-rear direction. The auxiliary rod LG connects the front-to-rear bottom frame LA1 of the L-shaped bottom frame LA to the upper horizontal column LE, and extends in the up-down direction.

[0033] A virtual rear surface VRS is defined between the first rear vertical column LC and the second rear vertical column LD in the L-shaped outer frame portion L and the widthwise bottom frame portion LA2 of the L-shaped bottom frame portion LA (Figures 1 and 4). A first imaginary side surface VSA1 is defined between the first front vertical column LB and the first rear vertical column LC in the L-shaped outer frame portion L, and the front-to-rear bottom frame portion LA1 and the upper horizontal column portion LE of the L-shaped bottom frame portion LA (Figures 1 and 4).

[0034] However, the L-shaped outer frame portion L may have a different configuration from that of this embodiment.

[0035] The second side surface outer frame portion N defines a second imaginary side surface VSA2 of the outer frame body 2. The second imaginary side surface VSA2 of the outer frame body 2 forms an imaginary surface on the second widthwise side of a pair of imaginary side surfaces on both widthwise sides of the outer frame body 2, and is a substantially rectangular imaginary flat surface parallel to the up-down direction. The second side surface outer frame portion N is configured so as not to deform. That is, the second side surface outer frame portion N is made of a rigid body such as metal (steel, etc.), and the second side surface outer frame portion N itself is configured so as not to be deformed by folding, etc. The second side surface outer frame portion N may be formed by connecting multiple separate members by fastening, welding, adhesive, etc., or may be formed from only one member.

[0036] More specifically, in this embodiment, the second side outer frame portion N has an I-shaped bottom frame portion NA, a second front vertical column portion NB, an intermediate vertical column portion NC, an upper end horizontal column portion NE, multiple intermediate horizontal column portions NF, and an auxiliary rod portion NG (Figure 1).

[0037] The I-shaped bottom frame portion NA (FIG. 6) of the second side surface outer frame portion N is substantially I-shaped in a horizontal projection plane, that is, extends linearly (FIGS. 9 and 17). The I-shaped bottom frame portion NA has a vertical bottom frame portion NAV extending vertically and a horizontal bottom frame portion NAH extending horizontally from the lower end of the vertical bottom frame portion NAV. The vertical bottom frame portion NAV and the horizontal bottom frame portion NAH are each plate-shaped. The horizontal bottom frame portion NAH of the I-shaped bottom frame portion NA is configured to extend from the lower end of the vertical bottom frame portion NAV of the I-shaped bottom frame portion NA to the first side in the width direction when the rack is in the unfolded state (FIGS. 1 to 11).

[0038] The second front vertical pillar portion NB and the middle vertical pillar portion NC of the second side surface outer frame portion N each extend in the up-down direction. The lower end of the second front vertical column portion NB is connected to the front end of the I-shaped bottom frame portion NA. The intermediate vertical column NC is provided at a position spaced forward from the second rear vertical column LD of the L-shaped outer frame L. The intermediate vertical column NC is provided so as to be located between the second front vertical column NB and the second rear vertical column LD in the front-to-rear direction when the rack is in the unfolded state (Figs. 1 to 11). The lower end of the intermediate vertical column NC is connected to the rear end of the I-shaped bottom frame NA.

[0039] The upper horizontal pillar NE of the second side outer frame N connects the upper end of the second front vertical pillar NB and the upper end of the middle vertical pillar NC, and extends horizontally. The upper horizontal pillar NE of the I-shaped outer frame NA extends in the front-to-rear direction in the rack unfolded state (Figs. 1 to 11).

[0040] The multiple (two in this embodiment) intermediate horizontal pillars NF of the second side outer frame N are positioned between the I-shaped bottom frame NA and the top horizontal pillar NE in the vertical direction, and are arranged at intervals from one another along the vertical direction. One intermediate horizontal pillar NF is provided for each shelf 3. Each intermediate horizontal pillar NF connects the second front vertical pillar NB and the intermediate vertical pillar NC, and extends horizontally. The multiple intermediate horizontal pillars NF of the I-shaped outer frame extend in the front-rear direction when the rack is in the unfolded state (FIGS. 1 to 11).

[0041] The auxiliary rod NG of the second side outer frame N is arranged so as to be located between the second front vertical column NB and the middle vertical column NC in the front-to-rear direction when the rack is in the unfolded state (Figs. 1 to 11). The auxiliary rod NG connects the I-shaped bottom frame NA and the upper horizontal column NE and extends in the up-down direction.

[0042] A second imaginary side surface VSA2 is defined between the middle vertical column portion NC, the second rear vertical column portion LD, the I-shaped bottom frame portion NA, and the upper horizontal column portion NE in the second side surface outer frame portion N (Figures 1 and 4).

[0043] However, the second side surface outer frame portion N may have a configuration different from that of this embodiment.

[0044] The second rear vertical column LD and the middle vertical column NC are connected by one or more (three in this embodiment) connecting members JM. Each connecting member JM extends in the front-rear direction. In this embodiment, the multiple connecting members JM are arranged at intervals from each other in the up-down direction. The connecting portion JM is fixed to the L-shaped outer frame portion L so as not to be able to rotate relative to the L-shaped outer frame portion L. The connecting part JM is configured not to deform. That is, the connecting part JM is made of a rigid body such as metal (steel, etc.), and the connecting part JM itself is configured not to be deformed by folding, etc. The connecting part JM may be made of multiple separate members connected together by fastening, welding, adhesive, etc., or may be made of only one member. By providing a connecting portion JM between the L-shaped outer frame portion L and the second side outer frame portion N, unnecessary interference between each shelf 3 or the L-shaped outer frame portion L and the second side outer frame portion N is prevented when the rack is folded (Figure 15). In this specification, when simply referring to a "connecting portion JM," it refers to each connecting portion JM. It is assumed that

[0045] The second side frame portion N is configured to be rotatable about a vertical rotation axis RAA that is fixed to the L-shaped frame portion L (and thus fixed to the connecting portion JM). The vertical rotation axis RAA coincides with the central axis of the middle vertical column portion NC of the second side frame portion N. The vertical rotation axis RAA passes through the front end portion JMF of the connecting portion JM and extends in the up-down direction. The intermediate vertical column portion NC of the second side surface outer frame portion N is supported by the front end portion JMF of the connecting portion JM so as to be rotatable around the vertical rotation axis RAA.

[0046] A plurality of shelves 3 (three in this embodiment) are attached to the outer frame 2 and are arranged in a vertical direction. The shelf 3 is made of a rigid body such as metal (steel, etc.). The shelf 3 may be made of multiple separate members connected together by fastening, welding, adhesive, etc., or may be made of only one member. In this specification, for ease of explanation, the lowest shelf 3 among the plurality of shelves 3 will be referred to as the "lowest shelf 3B," and the shelves 3 above the lowest shelf 3 among the plurality of shelves 3 will be referred to as the "upper shelf 3U." Multiple upper shelves 3U (two in this embodiment) may be provided as in this embodiment, or only one upper shelf 3U may be provided. In this specification, when simply referring to a "shelf 3," it refers to each of the shelves 3. Also, in this specification, when simply referring to an "upper shelf 3U," it refers to each of the upper shelf 3U.

[0047] As shown in FIG. 1 etc., the upper shelf 3U has a first side bar portion 3UA, a second side bar portion 3UB, a rear bar portion 3UC, a front bar portion 3UD, and an intermediate bar portion 3UE. The first side bar portion 3UA and the second side bar portion 3UB are spaced apart from each other in the width direction and extend parallel to each other. The first side bar portion 3UA and the second side bar portion 3UB each extend in the front-to-rear direction in the rack unfolded state (FIGS. 1 to 11). The rear end portion of the first side bar portion 3UA and the rear end portion of the second side bar portion 3UB are each connected to the rear bar portion 3UC. The front end portion of the first side bar portion 3UA and the front end portion of the second side bar portion 3UB are each connected to the front bar portion 3UD. The rear bar portion 3UC, the front bar portion 3UD, and the intermediate bar portion 3UE each extend in the width direction. The end of the rear bar portion 3UC on the first widthwise side is connected to the rear end of the first side bar portion 3UA, and the end of the rear bar portion 3UC on the second widthwise side is connected to the rear end of the second side bar portion 3UB. In the rack unfolded state (FIGS. 1 to 11), the front bar portion 3UD is located at a position spaced forward from the rear bar portion 3UC. The end portion of the front bar portion 3UD on the first width direction is connected to the front end portion of the first side bar portion 3UA. The end portion of the front bar portion 3UD on the second width direction is connected to the front end portion of the second side bar portion 3UB. The intermediate bar portion 3UE is located between the rear bar portion 3UC and the front bar portion 3UD in the front-rear direction in the rack unfolded state (FIGS. 1 to 11), and connects the first side bar portion 3UA and the second side bar portion 3UB. A substantially rectangular imaginary flat surface is defined between the first side bar portion 3UA, the second side bar portion 3UB, the rear bar portion 3UC and the front bar portion 3UD. However, the upper shelf 3U may have a configuration different from that of this embodiment.

[0048] As shown in Figure 1, etc., the lowest shelf 3B has a first side bar portion 3BA, a second side bar portion 3BB, a rear bar portion 3BC, a front beam portion 3BD, a front intermediate bar portion 3BE, and a rear intermediate bar portion 3BF. The first side bar portion 3BA and the second side bar portion 3BB are spaced apart from each other in the width direction. The first side bar portion 3BA and the second side bar portion 3BB extend in the front-to-rear direction in the rack unfolded state (FIGS. 1 to 11). The rear end portion of the first side bar portion 3BA and the rear end portion of the second side bar portion 3BB are each connected to the rear bar portion 3BC. The front end portion of the first side bar portion 3BA and the front end portion of the second side bar portion 3BB are each connected to the front beam portion 3BD. The rear bar portion 3BC, the front beam portion 3BD, the front intermediate bar portion 3BE, and the rear intermediate bar portion 3BF each extend in the width direction. The end of the rear bar portion 3BC on the first widthwise side is connected to the rear end of the first side bar portion 3BA. The end of the rear bar portion 3BC on the second widthwise side is connected to the rear end of the second side bar portion 3BB. In this embodiment, the rear bar portion 3BC is discontinuous along its extension; in other words, it is composed of a pair of portions spaced apart from each other in the widthwise direction. However, the rear bar portion 3BC may extend continuously in the widthwise direction throughout its entirety, like the rear bar portion 3BC of the lowest shelf 3B. In the unfolded rack state (FIGS. 1 to 11), the front beam portion 3BD is located at a position spaced forward from the rear bar portion 3BC. An end portion on a first widthwise side of the front beam portion 3BD is connected to a front end portion of the first side bar portion 3BA. An end portion on a second widthwise side of the front beam portion 3BD is connected to a front end portion of the second side bar portion 3BB. In this embodiment, the front beam portion 3BD is configured to have higher bending rigidity than the other portions of the lowest shelf 3B (the first side bar portion 3BA, the second side bar portion 3BB, the rear bar portion 3BC, the front intermediate bar portion 3BE, and the rear intermediate bar portion 3BF), thereby improving the strength of the outer frame body 2 when the lowest shelf 3B is in the shelf-expanded state (FIG. 1). More specifically, in this embodiment, in a plan view of the lowest shelf 3B (Figure 6), the front beam portion 3BD is thicker (has a larger width in the direction perpendicular to the extension direction) than the other portions of the lowest shelf 3B (first side bar portion 3BA, second side bar portion 3BB, rear bar portion 3BC, front intermediate bar portion 3BE, and rear intermediate bar portion 3BF). In this embodiment, the front beam portion 3BD has a substantially U-shape in a cross section perpendicular to the width direction. More specifically, the front beam portion 3BD has a pair of plate-like opposing wall portions 3BDF facing each other and a plate-like bottom wall portion 3BDB connecting the pair of opposing wall portions 3BDF. In the rack-unfolded state (FIGS. 1 to 11), the opposing wall portions 3BDF are parallel to the up-down direction and the width direction and face each other in the front-rear direction, and the bottom wall portion 3BDB is parallel to the front-rear direction and the width direction and connects the lower ends of the opposing wall portions 3BDF. However, the front beam portion 3BD may have any shape different from that of this embodiment in a cross section perpendicular to the width direction. In the unfolded rack state (FIGS. 1 to 11), the front intermediate bar portion 3BE and the rear intermediate bar portion 3BF are each located between the rear bar portion 3BC and the front beam portion 3BD in the front-to-rear direction. In the unfolded rack state (FIGS. 1 to 11), the front intermediate bar portion 3BE is located forward of the rear intermediate bar portion 3BF. The front intermediate bar portion 3BE and the rear intermediate bar portion 3BF connect the first side bar portion 3BA and the second side bar portion 3BB, respectively. A substantially rectangular imaginary flat surface is defined between the first side bar portion 3BA, the second side bar portion 3BB, the rear bar portion 3BC and the front beam portion 3BD. However, the lowest shelf 3B may have a different configuration from that of this embodiment.

[0049] The shelves 3 are each configured to be rotatable around a separate horizontal rotation axis HA (HAa, HAb, HAc) fixed to the L-shaped outer frame portion L. Each horizontal rotation axis HA, HAa, HAb, HAc coincides with the central axis of the rear bar portion 3UC, 3BC of the corresponding shelf 3. Each horizontal rotation axis HA (HAa, HAb, HAc) extends in the width direction and is located at the rear end of the L-shaped outer frame portion L. In this embodiment, both widthwise ends of the rear bar portion 3UC of each upper shelf 3U are connected to the widthwise inner ends of the first rear vertical column portion LC and the second rear vertical column portion LD of the L-shaped outer frame portion L, respectively, and are supported by the first rear vertical column portion LC and the second rear vertical column portion LD of the L-shaped outer frame portion L, respectively. and supported so as to be rotatable about corresponding horizontal rotation axes HA (HAa, HAb). The rear bar portion 3BC of the lowest shelf 3B is supported by a support piece LH connected to the widthwise bottom frame portion LA2 of the L-shaped bottom frame portion LA of the L-shaped outer frame portion L so that it can rotate around the corresponding horizontal rotation axis HA (HAc).

[0050] The plurality of shelf support portions 4 are each fixed to the outer frame body 2 and configured to receive the plurality of shelves 3. In this embodiment, each shelf 3 is provided with a pair of shelf support portions 4 on both sides in the width direction. In this embodiment, a pair of shelf support portions 4 on both sides in the width direction, which are configured to receive the upper shelf 3U, are respectively attached to the intermediate horizontal column portion LF of the L-shaped outer frame portion L and the intermediate horizontal column portion NF of the second side outer frame portion N, which are arranged so as to be positioned near the corresponding upper shelf 3U when the rack is in the unfolded state, and extend inward in the width direction from the intermediate horizontal column portions LF, NF, and are configured to support (receive) from below the first side bar portions 3UA, 3BA and second side bar portions 3UB, 3BB of the corresponding upper shelf 3U when the rack is in the unfolded state. In this embodiment, a pair of shelf support portions 4 on both sides in the width direction, which are configured to receive the lowest shelf 3B, are each composed of the front end portion of the horizontal bottom frame portion LA1H of the front-to-back bottom frame portion LA1 of the L-shaped bottom frame portion LA of the L-shaped outer frame portion L, and the front end portion of the horizontal bottom frame portion NAH of the I-shaped bottom frame portion NA of the second side outer frame portion N, and are configured to support (receive) the front beam portion 3BD of the lowest shelf 3B from below when the rack is in an unfolded state. However, the number and configuration of the shelf support portions 4 are not limited to those in this embodiment, and may be arbitrary.

[0051] Each of the multiple shelves 3 is configured to be rotatable around a separate horizontal rotation axis HA (HAa, HAb, HAc) fixed to the L-shaped outer frame portion L so that it can be displaced between a shelf-expanded state (Figures 1 to 11) in which the shelf 3 is received by the corresponding shelf support portion 4, and a shelf-folded state (Figures 14 to 18) in which the shelf 3 is folded toward the virtual rear surface VRS. In the unfolded shelf state, the imaginary flat surface defined by the shelf 3 is approximately parallel to the width direction and the front-rear direction (Fig. 1). At this time, the first side bar portions 3UA, 3BA and the second side bar portions 3UB, 3BB of the shelf extend in the front-rear direction. Also, at this time, the front bar portion 3UD of the upper shelf 3U or the front beam portion 3BD of the lowermost shelf 3B is positioned forward of the rear bar portion 3UC of the upper shelf 3U or the rear bar portion 3BC of the lowermost shelf 3B (and thus the corresponding horizontal rotation axis HA). Note that in the unfolded rack state (Fig. 1), all shelves 3 are in the unfolded shelf state. In the folded-shelf state, the imaginary flat surface defined by the shelf 3 is approximately parallel in the width direction and the vertical direction, and is approximately parallel to the imaginary rear surface VRS (Figs. 14 and 15). At this time, the first side bar portions 3UA, 3BA and the second side bar portions 3UB, 3BB of the shelf 3 extend in the vertical direction. Also, at this time, the front bar portion 3UD of the upper shelf 3U or the front beam portion 3BD of the lowermost shelf 3B is positioned above the rear bar portion 3UC of the upper shelf 3U or the rear bar portion 3BC of the lowermost shelf 3B (and thus the corresponding horizontal rotation axis HA). Note that in the folded-shelf state (Fig. 15), all of the shelves 3 are in the folded-shelf state.

[0052] Each shelf 3 is configured to store one or more annular objects such as tires (FIGS. 10-11) when the shelf is unfolded (FIGS. 1-11). An annular object AB is stored on the shelf 3 with its central axis oriented in the width direction. When multiple annular objects AB are stored on one shelf 3, these multiple annular objects AB are arranged along the width direction. In this embodiment, each upper shelf 3U is configured to support the annular body AB from the front and rear by a front bar portion 3UD and an intermediate bar portion 3UE (FIG. 11). In this embodiment, the lowest shelf 3B is configured to support the annular body AB from the front and rear by a front intermediate bar portion 3BE and a rear intermediate bar portion 3BF (FIG. 11). However, this is not limited to this embodiment, and each shelf 3 may store the annular body AB in any configuration. The device may be configured to:

[0053] The second side surface outer frame portion N is configured to be rotatable about a vertical rotation axis RAA fixed to the L-shaped outer frame portion L so as to be displaceable between a side unfolded state (FIGS. 1 to 14) in which the second side surface outer frame portion N faces the first imaginary side surface VSA1 and a side folded state (FIGS. 15 to 18) in which the second side surface outer frame portion N is folded toward the imaginary rear surface VRS when all shelves 3 are in the shelf folded state. In the side-deployed state, the second side frame portion N faces the first imaginary side surface VSA1 in the width direction, and the second imaginary side surface VSA2 defined by the second side frame portion N is substantially parallel to the first imaginary side surface VSA1 (FIG. 1). Note that in the rack-deployed state (FIG. 1), the second side frame portion N is in the side-deployed state. In the side folded state, the second side surface outer frame N is located forward of each shelf 3 in the shelf folded state, the second side surface outer frame N faces the imaginary rear surface VRS in the front-to-rear direction, and the second imaginary side surface VSA2 defined by the second side surface outer frame N is approximately parallel to the imaginary rear surface VRS (FIG. 15). Note that in the rack folded state (FIG. 15), the second side surface outer frame N is in the side folded state.

[0054] In this embodiment, the logistics rack 1 for transporting ring-shaped objects is equipped with a plurality of casters CT (rolling members). This makes it easier to move the logistics rack 1 for transporting ring-shaped objects. In this embodiment, these casters CT are attached to the underside of the outer frame 2 (FIG. 9). The wheel portion of the caster CT may be made of rubber or plastic. However, caster CT is not required.

[0055] The logistics rack 1 for transporting ring-shaped objects configured as described above is placed in the rack unfolded state (FIG. 1) when in use (when transporting ring-shaped objects AB such as tires). At this time, each shelf 3 is in the shelf unfolded state, and the second side outer frame N is in the side unfolded state. In the rack unfolded state, one or more ring-shaped objects AB are stored on one or more shelves 3 and transported. When storing the logistics rack 1 for transporting ring-shaped objects after the transportation of the ring-shaped objects has been completed, the logistics rack 1 for transporting ring-shaped objects, which is in the unfolded rack state, is folded to put it in the folded rack state (Figure 15). At this time, first, each shelf 3 in the unfolded state is folded by rotating it upward around the corresponding horizontal rotation axis HA (HAa, HAb, HAc) to bring it into the folded state (FIG. 14). At this time, for example, each upper shelf 3U may be folded to bring it into the folded state (FIG. 12), and then the bottom shelf 3B may be folded to bring it into the folded state (FIG. 14). The order in which the shelves 3 are folded may be arbitrary. After each shelf 3 is in the folded state, the second side outer frame N, which is in the side-extended state, is folded by rotating it inward in the width direction around the vertical rotation axis RAA to be in the side-folded state (FIG. 15). This causes the logistics rack 1 for transporting ring-shaped objects to be in the folded rack state. When changing the logistics rack 1 for transporting ring-shaped objects from the folded state to the unfolded state, the above steps can be carried out in reverse order. In this way, the logistics rack 1 for transporting annular objects of this embodiment can be easily folded and unfolded (assembled).

[0056] In this way, the logistics rack 1 for transporting ring-shaped objects of this embodiment is configured so that the L-shaped outer frame part L, which is approximately L-shaped in a horizontal projection plane, does not deform, and the second side surface outer frame part N is foldable. In other words, the logistics rack 1 for transporting ring-shaped objects is configured so that only one of the side surfaces on both sides in the width direction (the side surface on the second width direction side) is foldable. Therefore, the logistics rack 1 for transporting ring-shaped objects has an approximately L-shaped shape in a horizontal projection plane when the rack is folded. This will be done (Figures 15 and 17). Therefore, compared to a case in which both sides in the width direction of the logistics rack 1 for transporting ring-shaped objects are foldable, the strength and therefore durability of the logistics rack 1 for transporting ring-shaped objects can be improved. In other words, the L-shaped outer frame portion L is configured not to deform, so high strength can be ensured. This reduces the risk of the logistics rack 1 for transporting ring-shaped objects tipping over when stored, and also allows for stable transport even when transporting relatively heavy ring-shaped objects AB, such as tires. Furthermore, since the logistics rack 1 for transporting ring-shaped objects has a substantially L-shape in a horizontal projection when folded, as shown in Fig. 18, when stored, it is possible to closely stack multiple logistics racks 1 for transporting ring-shaped objects so that one logistics rack 1 for transporting ring-shaped objects enters the substantially L-shaped internal space of another logistics rack 1 for transporting ring-shaped objects. Therefore, the logistics rack 1 for transporting ring-shaped objects can be stored more compactly than if none of the side surfaces on both sides in the width direction of the logistics rack 1 for transporting ring-shaped objects were foldable. As a result, for example, when transporting the logistics rack 1 for transporting ring-shaped objects by truck or the like, more logistics racks 1 for transporting ring-shaped objects can be loaded onto the truck, improving transportation efficiency. As described above, the logistics rack 1 for transporting annular objects according to this embodiment can achieve both durability and compactness when stored at a higher level.

[0057] In this embodiment, the logistics rack 1 for transporting annular objects further includes a shelf open state locking unit 5 (FIGS. 6 and 7). The shelf expanded state locking section 5 is configured to lock (fix the position of) the lowest shelf 3 (lowest shelf 3B) relative to the L-shaped outer frame section L and the second side outer frame section N when the second side outer frame section N is in the side expanded state and the lowest shelf 3 is in the shelf expanded state (Figures 1 and 12). According to the shelf expanded state locking section 5, in the rack expanded state (Figure 1), the L-shaped outer frame section L and the second side outer frame section N are firmly connected to each other via the lowest shelf 3B, and the relative positions of the L-shaped outer frame section L and the second side outer frame section N are firmly fixed, allowing for more stable transportation.

[0058] In this embodiment, the shelf open state locking portion 5 is configured as a slide latch type. More specifically, in this embodiment, a pair of shelf-opened-state locking parts 5 are provided on both sides in the width direction (FIG. 6). As shown in FIG. 7, in this embodiment, the shelf-opened-state locking part 5 has an upright piece 5A, a slit hole 5B, a guide part 5C, a slide rod 5D, and a knob 5E. The standing piece 5A extends upward from the horizontal bottom frame portions LA1H, LA2H, and NAH of the L-shaped outer frame portion L and the second side surface outer frame portion N (in the example of FIG. 7, the front end portions of the horizontal bottom frame portions LA1H and NAH, respectively). The standing piece 5A has a through hole 5AH that penetrates the standing piece 5A. In the example of FIG. 7, the through hole 5AH penetrates the standing piece 5A in the width direction. The slit hole 5B is provided in the bottom wall portion 3BDB of the front beam portion 3BD of the lowest shelf 3B, and penetrates the bottom wall portion 3BDB in the thickness direction of the bottom wall portion 3BDB. The slit hole 5B is configured so that the upright piece 5A can pass through it when the lowest shelf 3 is in the shelf expanded state. In this state, the through hole 5AH of the upright piece 5A is located above the slit hole 5B (and therefore above the bottom wall portion 3BDB of the front beam portion 3BD). The knob 5E is connected to the slide rod 5D so as to protrude from the slide rod 5D. The guide portion 5C is configured to guide the slide bar 5D in one direction (the width direction in the example of FIG. 7). In this embodiment, the guide portion 5C is attached to the upper surface of the bottom wall portion 3BDB of the front beam portion 3BD. The guide portion 5C has an adjustment hole 5CH. The adjustment hole 5CH is configured so that the position of the knob 5E (and therefore the slide bar 5D) can be adjusted (moved) within the adjustment hole 5CH. The shelf-opened-state locking unit 5 of this example configured as described above is configured so that a person can pinch and operate the knob 5E to change the position of the knob 5E within the adjustment hole 5CH, thereby displacing the slide bar 5D between a locked state (FIG. 7) in which the slide bar 5D passes through the through-hole 5AH of the upright piece 5A and an unlocked state (not shown) in which the slide bar 5D does not pass through the through-hole 5AH of the upright piece 5A. In the locked state, the lowest shelf 3B and the L-shaped outer frame portion L or the second side surface outer frame portion N are locked (connected). In the unlocked state, the lowest shelf 3B and the L-shaped outer frame portion L or the second side surface outer frame portion N are not locked (connected). However, the configuration and number of the shelf expanded state locking unit 5 are not limited to those in this embodiment and are arbitrary. Also, the shelf expanded state locking unit 5 is not essential.

[0059] In this embodiment, the logistics rack 1 for transporting ring-shaped objects further includes a shelf folded state locking unit 6 (FIGS. 2, 3, and 13). The shelf folded state locking section 6 is configured to be able to lock (fix the position of) the shelf 3 relative to the L-shaped outer frame section L when the shelf 3 is in the shelf folded state. The shelf folding state locking section 6 prevents the shelves 3, which have been put into the folded shelf state, from suddenly returning to the unfolded shelf state when the logistics rack 1 for transporting ring-shaped objects is folded or stored, thereby enabling more stable folding and storage operations.

[0060] In this embodiment, the shelf folded state locking section 6 is configured as a latching lock. More specifically, in this embodiment, a pair of shelf folded state locking parts 6 are provided on both sides in the width direction for each shelf (Fig. 1). As shown in Figs. 2, 3 and 13, in this embodiment, the shelf folded state locking part 6 has a rotating piece 6A and a receiving groove 6B. The rotating piece 6A is plate-shaped and configured to be rotatable around a rotating piece rotation axis 6AA fixed to the L-shaped outer frame portion L. In this example, the rotating piece 6A is configured as a substantially L-shaped plate. The rotating piece rotation axis 6AA extends in the front-to-rear direction. In this embodiment, the rotating piece 6A is attached to the first vertical pillar portion or the second rear vertical pillar portion LD of the L-shaped outer frame portion L so as to be rotatable around the rotating piece rotation axis 6AA. The rotating piece rotation axis 6AA passes through the first vertical pillar portion or the second rear vertical pillar portion LD. The receiving groove 6B has a receiving groove 6BG. The receiving groove 6B is attached to the shelf 3. In this embodiment, the receiving groove 6B is attached to the first side bar portion 3UA, 3BA or the second side bar portion 3UB, 3BB of the shelf. When the shelf 3 is in the folded state, the receiving groove 6BG is open at the top (FIG. 13). 13 with a dashed line, the shelf folding state locking portion 6 is configured so that when the shelf 3 is in the shelf folding state, a person can rotate the rotating piece 6A about the rotating piece rotation axis 6AA to drop (hook) the rotating piece 6A from above into the receiving groove 6BG of the receiving groove tool 6B. When the rotating piece 6A is hooked into the receiving groove 6BG, the shelf 3 and the L-shaped outer frame portion L are locked (connected). However, the configuration and number of the shelf folded state locking units 6 are not limited to those in this embodiment and are arbitrary. Also, the shelf folded state locking units 6 are not essential.

[0061] In this embodiment, the logistics rack 1 for transporting ring-shaped objects further includes temporary shelf fastening portions 7 (FIGS. 2 and 13). The shelf temporary fastening portion 7 is configured to temporarily fasten the shelf 3 to the L-shaped outer frame portion L when the shelf 3 is in the folded shelf state. The shelf folding state locking section 6 allows the shelf 3 to be easily maintained in the folded state when the logistics rack 1 for transporting ring-shaped objects is folded, and prevents the shelf 3 from suddenly dropping (returning to the unfolded state), allowing for more stable folding operations. If the logistics rack 1 for transporting ring-shaped objects is equipped with both the shelf expanded state locking section 5 and the shelf temporary fastening section 7, for example, when putting the shelf 3 into the shelf folded state, the shelf 3 may first be temporarily fastened to the L-shaped outer frame section L by the shelf temporary fastening section 7, and then the shelf 3 may be more securely locked to the L-shaped outer frame section L by the shelf expanded state locking section 5.

[0062] In this embodiment, the shelf temporary fastening portion 7 is configured as a pipe clip type. More specifically, in this embodiment, a pair of shelf temporary fastening portions 7 are provided on both sides of each shelf in the width direction (FIG. 1). As shown in FIGS. 2 and 13, in this embodiment, the shelf temporary fastening portion 7 has a base member 7A and a temporary fastening member 7B. The base member 7A is attached to the L-shaped outer frame portion L, and is configured to fix the temporary fastening member 7B to the L-shaped outer frame portion L. In this embodiment, the base member 7A is attached to the first rear vertical column portion LC or the second rear vertical column portion LD of the L-shaped outer frame portion L, and extends inward in the width direction from the first rear vertical column portion LC or the second rear vertical column portion LD. The temporary fastening member 7B is not made of metal or the like and is configured to be elastically deformable. The temporary fastening member 7B has a pair of holding pieces 7BP. The temporary fastening member 7B is configured so that the pair of holding pieces 7BP can move closer and farther apart due to elastic deformation. In this embodiment, the pair of holding pieces 7BP face each other in the width direction. In this embodiment, the pair of holding pieces 7BP are configured to hold (sandwich) the first side bar portions 3UA, 3BA or the second side bar portions 3UB, 3BB of the shelf 3 when the shelf 3 is in the folded state. 13, when the shelf 3 is shifted from the unfolded state to the folded state, if a person pushes the shelf 3 against the temporary fastening member 7B, the pair of holding pieces 7BP of the temporary fastening member 7B will move apart (open) due to elastic deformation, and the first side bar portions 3UA, 3BA or the second side bar portions 3UB, 3BB of the shelf 3 will enter between the pair of holding pieces 7BP, and the distance between the pair of holding pieces 7BP will be restored (narrowed again) due to elastic deformation, so that they will be held (clamped) there. As a result, the shelf 3 will be temporarily fastened to the L-shaped outer frame portion L. However, the configuration and number of the shelf temporary fastening portions 7 are not limited to those in this embodiment and are arbitrary. Also, the shelf temporary fastening portions 7 are not essential. The shelf temporary fastening portion 7 may be configured as a magnet type instead of or in addition to the pipe clip type.

[0063] In this embodiment, the logistics rack 1 for transporting annular objects further includes temporary side fastening portions 8 (FIGS. 8 and 16). The side temporary fastening portion 8 is configured to temporarily fasten the second side surface outer frame portion N to the L-shaped outer frame portion L when the second side surface outer frame portion N is in the side folded state (FIG. 15). The side temporary fastening portion 8 prevents the second side outer frame portion N, which has been placed in a side folded state, from suddenly opening (returning to a side unfolded state) when folding the logistics rack 1 for transporting ring-shaped objects or when moving the logistics rack 1 for transporting ring-shaped objects in a folded state, thereby enabling more stable folding and moving operations.

[0064] In this embodiment, the side temporary fastening portion 8 is configured as a magnet type. More specifically, in this embodiment, the side temporary fastening portion 8 has a base member 8A and a magnet member 8B. The base member 8A is attached to the L-shaped outer frame portion L and is configured to fix the magnet member 8B to the L-shaped outer frame portion L. In this embodiment, the base member 8A is attached to the width direction bottom frame portion LA2 of the L-shaped bottom frame portion LA of the L-shaped outer frame portion L. The magnet member 8B is configured to magnetically attract a part of the second side surface outer frame portion N when the second side surface outer frame portion N is in the side-folded state (FIG. 15). In this embodiment, the magnet member 8B is configured to magnetically attract the standing piece 5A of the second side surface outer frame portion N when the second side surface outer frame portion N is in the side-folded state. (FIG. 16). One or more (multiple in the illustrated example) magnet members 8B are fixed to the base member 8A. The magnet members 8B face forward. When the second side surface outer frame portion N is in the side folded state, the upright pieces 5A of the second side surface outer frame portion N are approximately parallel in the width direction and the up-down direction, and face the magnet members 8B in the front-to-back direction. However, the configuration and number of the side temporary fastening portions 8 are not limited to those in this embodiment and are arbitrary. Also, the side temporary fastening portions 8 are not essential.

[0065] In this embodiment, the pitch distance PD (vertical distance) between the multiple shelves 3 becomes smaller toward the top. This reduces dead space while allowing smaller diameter ring-shaped objects AB to be stored toward the top. Therefore, ring-shaped objects AB of various diameters can be efficiently transported. This configuration is particularly advantageous when transporting tires of various tire sizes. However, the pitch interval PD between the plurality of shelves 3 may be any value or may be uniform.

[0066] [Contribution to the United Nations-led Sustainable Development Goals (SDGs)] The SDGs have been proposed to realize a sustainable society. One embodiment of the present invention is expected to be a technology that contributes to goals such as "No. 12: Responsible Consumption and Production" and "No. 13: Take concrete action against climate change." [Industrial Applicability]

[0067] The logistics rack for transporting ring-shaped objects according to the present invention can be used to transport any ring-shaped objects, such as tires or pulp rolls. [Explanation of symbols]

[0068] 1: Logistics rack for transporting circular objects, 2: outer frame body, L: L-shaped outer frame section, LA: L-shaped bottom frame section, LA1: Front-to-back bottom frame section, LA1V: Vertical bottom frame section, LA1H: Horizontal bottom frame section (shelf support section), LA2: Width-direction bottom frame section, LA2V: Vertical bottom frame section, LA2H: Horizontal bottom frame section, LB: First front vertical column section, LC: First rear vertical column section, LD: Second rear vertical column section, LE: Upper end horizontal column section, LF: Intermediate horizontal column section, LG: Auxiliary rod section, LH: Support piece, N: second side outer frame part, NA: I-shaped bottom frame, NAV: vertical bottom frame, NAH: horizontal bottom frame (shelf support), NB: second front vertical column, NC: intermediate vertical column, NE: upper end horizontal column, NF: intermediate horizontal column, NG: auxiliary rod, RAA: Vertical rotation axis, VRS: Virtual Rear Surface, VSA1: First Virtual Side, VSA2: second virtual side, JM: Connecting part, JMF: Front end, 3: Shelf, HA, HAa, HAb, HAc: horizontal rotation axis, 3U: Upper shelf, 3UA: First side bar section, 3UB: Second side bar section, 3UC: Rear bar section, 3UD: Front bar section, 3UE: Intermediate bar section, 3B: Bottom shelf, 3BA: First side bar section, 3BB: Second side bar section, 3BC: Rear bar section, 3BD: Front beam section, 3BDF: Opposing wall section, 3BDB: Bottom wall section, 3BE: Front intermediate bar section, 3BF Rear intermediate bar section, 4: Shelf support part, 5: Shelf expansion locking section, 5A: Standing piece, 5AH: Through hole, 5B: Slit hole, 5C: Guide part, 5CH: Adjustment hole, 5D: Slide rod, 5E: Knob, 6: Shelf folding state lock part, 6A: Rotating piece, 6AA: Rotating piece rotation axis, 6B: Receiving groove tool, 6BG: Receiving groove, 7: Shelf temporary fastening part, 7A: base member, 7B: temporary fastening member, 7BP: holding piece, 8: Side temporary fastening part, 8A: Base member, 8B: Magnet member, AB: cyclic body; UDD: vertical direction, US: Upper side, DS: Lower side, FRD: Front-to-rear direction, FS: Front side, RS: Rear side, WD: Width direction, WD1: Width direction first side, WD2: Width direction second side, WDI: Width direction inner side, WDO: Width direction outside, PD: pitch distance, CT: Caster

Claims

1. A logistics rack for transporting ring-shaped objects, An outer frame body; a plurality of shelves attached to the outer frame and arranged along the vertical direction; a plurality of shelf support portions fixed to the outer frame and configured to receive the plurality of shelves; Equipped with The outer frame body is an L-shaped outer frame portion that defines a virtual rear surface and a first virtual side surface of the outer frame body, has a substantially L-shape in a horizontal projection plane, and is configured not to deform; a second side surface outer frame portion defining a second imaginary side surface of the outer frame body; Equipped with The plurality of shelves are configured to be rotatable about separate horizontal rotation axes fixed to the L-shaped outer frame portion so as to be displaceable between a shelf-opened state in which the shelves are received by the corresponding shelf receiving portions and a shelf-folded state in which the shelves are folded toward the imaginary rear surface, A logistics rack for transporting ring-shaped objects, wherein the second side outer frame portion is configured to be rotatable about a vertical axis of rotation fixed to the L-shaped outer frame portion so as to be displaceable between a side expanded state in which the second side outer frame portion faces the first imaginary side surface and a side folded state in which the second side outer frame portion is folded toward the imaginary rear surface when the multiple shelves are in the shelf folded state.

2. 2. The logistics rack for transporting ring-shaped objects according to claim 1, further comprising a shelf folded state locking portion configured to lock the shelf relative to the L-shaped outer frame portion when the shelf is in the shelf folded state.

3. 3. The logistics rack for transporting ring-shaped objects according to claim 2, wherein the shelf folded state locking portion is configured as a latching lock.

4. 2. A logistics rack for transporting ring-shaped objects as described in claim 1, further comprising a shelf expanded state locking section configured to lock the lowest shelf to the L-shaped outer frame section and the second side outer frame section when the second side outer frame section is in the side expanded state and the lowest shelf is in the shelf expanded state.

5. 5. The logistics rack for transporting ring-shaped objects according to claim 4, wherein the shelf-opened state locking portion is configured as a slide latch type.

6. 2. The logistics rack for transporting circular objects according to claim 1, wherein the pitch intervals between the plurality of shelves become smaller toward the upper side.

7. 2. A logistics rack for transporting ring-shaped objects as described in claim 1, further comprising a side temporary fastening portion configured to temporarily fasten the second side outer frame portion to the L-shaped outer frame portion when the second side outer frame portion is in the side folded state.

8. The logistics rack for transporting ring-shaped objects according to claim 7, wherein the side temporary fastening portions are configured as magnets.

9. 2. The apparatus for transporting annular objects according to claim 1, further comprising a shelf temporary fastening portion configured to temporarily fasten the shelf to the L-shaped outer frame portion when the shelf is in the shelf folded state. Logistics rack.

10. The logistics rack for transporting ring-shaped objects according to claim 9, wherein the shelf temporary fastening portion is configured as a pipe clip type or a magnet type.

11. The logistics rack for transporting circular objects according to any one of claims 1 to 10, wherein the logistics rack for transporting circular objects is configured to be used for transporting tires as circular objects.

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