JPWO2018025912A1 - suitcase - Google Patents

Abstract

The present invention provides a suitcase which is easy to pass through stairs and steps, and which can secure a relatively large article storage space while suppressing an increase in weight and an increase in size of the suitcase itself. A suitcase (100) has a substantially cylindrical case main body (10) capable of storing articles, and an open / close lid provided on one end face of the case main body (10) in the direction of the axis (10a). 12) and a plurality of (a pair of) annular rotary members rotatably attached to the case body (10) in a state of surrounding the outer periphery of the case body (10) and integrally attached to the case body (10) And a grounding member (20) provided on the outer periphery of the case main body (10) to hold the case main body (10) in an upright posture on the ground contact surface (G). ing. [Selected figure] Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a suitcase which can be moved while being pulled by a human hand on a floor surface or a road surface in a building.

  Since the type of suitcase that is moved by human while lifting it by hand is physically burdensome to the user, in recent years, many suitcases equipped with traveling wheels have been distributed. However, since the outer diameter of the wheel is smaller than the size of the suitcase main body, it is difficult for the conventional wheeled suitcase to pass through a place having stairs up and down or a large step.

  In order to solve such a problem, a suitcase provided with a wheel having an outer diameter larger than that of a conventional wheel has been proposed (see, for example, Patent Documents 1 and 2). The suitcase described in Patent Document 1 is provided with storage boxes on both sides of a wheel having an outer diameter larger than that of a conventional wheel. Moreover, the suitcase of patent document 2 equips the both sides of a storage box with the wheel with a large outer diameter, respectively.

  Since the suitcases described in Patent Literatures 1 and 2 are provided with wheels having an outer diameter larger than the height of the stairs, it can be inferred that the climbing of the stairs is facilitated. However, the one-wheel type suitcase described in FIGS. 1 to 3 of Patent Document 1 has a surface lacking in stability during movement.

  On the other hand, the suitcases described in FIGS. 4 to 6 of Patent Document 1 or the suitcases described in Patent Document 2 are improved in stability because the wheels are provided on both sides of the storage box. The presence of two wheels of large diameter on both sides of the storage box leads to an increase in weight and enlargement of the suitcase itself.

  Therefore, a round suitcase 700 as shown in FIG. 31 has been proposed. The suitcase 700 shown in FIG. 31 is called "Samsonite OBAG" of "Samsonite".

  The suitcase 700 has two short cylindrical cylindrical case main bodies 701 and 702, a carry handle 703 provided protruding from the gap G between the case main bodies 701 and 702, and the outer circumference of the case main bodies 701 and 702. And ring-shaped rotating bodies 705 and 706 rotatably provided along the respective circumferential directions.

  Further, a support member 704 for holding the suitcase 700 in a predetermined standing posture on the ground contact surface is provided so as to be able to be taken in and out from the gap G between the case main bodies 701 and 702 toward the ground contact surface. A lid 708 for opening and closing an article entrance (not shown) to the case main body 701 and a grip portion 709 for opening and closing the lid 708 are provided on the outer surface of the case main body 701. Although not shown, as with the outer side surface of the case main body 701, the outer side surface of the case main body 702 also includes a lid for opening and closing an article entrance to the case main body 702 and a gripping portion for opening and closing the lid. Is provided.

  When using the suitcase 700, the user holds the grip portion 707 of the carry handle 703 with one hand and walks in the intended direction, as in the case of a conventional wheeled suitcase, in a state of being grounded on the ground surface. The suitcase 700 can be easily moved since the two rotating bodies 705 and 706 follow the user while rotating around the case main bodies 701 and 702.

  In the case of the suitcase 700, since the rotating bodies 705, 706 having a larger outer diameter are provided around the case main bodies 701, 702 than the wheels included in the suitcases described in the patent documents 1, 2, patent document 1 Compared to the suitcases described in 2 and 3, passage of stairs or steps is easier. In addition, since the rotating bodies 705 and 706 are ring-shaped, it is presumed that weight increase and enlargement of the suitcase can be suppressed to some extent.

JP, 2010-94489, A JP, 2011-177484, A

  As described above, the suitcase 700 shown in FIG. 31 has a large outer diameter rotating body 705, as compared to the conventional wheeled suitcase or the wheels of the suitcases described in Patent Documents 1 and 2. Since it is provided with 706, it is presumed that the ups and downs of the stairs and the step part are facilitated and the noise during traveling is reduced.

  However, a gap G is provided over the entire circumference between the two case bodies 701 and 702, and the base end (not shown) of the carry handle 703 is rotatably disposed in the gap G, Since the occupied space is large, there is a problem that the article storage space in the case main bodies 701 and 702 is narrow compared to the case where the entire size of the suitcase 700 is large.

  In the case of a suitcase with auxiliary wheels when traveling, the ability to easily pass through stairs and steps, etc., and suppressing the weight reduction and enlargement of the suitcase itself should be solved not only in the past but also in the future It is an important issue.

  However, it is a fact that conventional suitcases with auxiliary wheels have not reached satisfactory levels with regard to ease of passing through stairs and steps, weight reduction of the suitcase itself, and suppression of enlargement.

  Therefore, the problem to be solved by the present invention is that it is easy to pass through stairs and steps, etc., and it is possible to secure a relatively large article storage space while suppressing weight increase and enlargement of the suitcase itself. It is about providing a suitcase.

The suitcase of the present invention is
A case body capable of storing an article, and an open / close lid provided on the case body;
A plurality of annular rotary bodies rotatably attached to the case body in a state of surrounding the outer periphery of the case body;
A pulling handle integrally attached to the case body;
And a grounding member provided on an outer periphery of the case main body in order to hold the case main body in a standing posture.

  Here, in the suitcase, it is preferable that the case main body has a cylindrical shape or a polygonal cylindrical shape, and the rotating body is attached along the circumferential direction of the case main body.

  Further, in the suitcase, the open / close lid can be provided on at least one end face of the case main body in the axial direction.

  Further, in the suitcase, the open / close lid may be provided on the outer peripheral surface of the case main body.

  Furthermore, in the suitcase, the open / close lid can be attached to the case body via a fastener or a hinge.

  Further, in the suitcase, the open / close lid may be rotatably mounted around a pivot provided on the case main body in a state of being parallel to the axial center of the rotating body.

  On the other hand, in the suitcase, the ground contact member may be provided to protrude on the outer peripheral surface of the case main body.

  Furthermore, in the suitcase, the plurality of rotating bodies may be arranged such that the distance between the rotating bodies gradually widens toward the ground contact surface.

  Further, in the suitcase, the case body may be provided with a handle for lifting the suitcase.

  Further, in the suitcase, the case body may be provided with a mudguard cover that covers the outer periphery of the rotating body in the circumferential direction.

  According to the present invention, it is possible to provide a suitcase which is easy to pass through stairs and steps, has a low noise during traveling, and can secure a relatively large article storage space.

It is a right side view showing a suitcase which is an embodiment of the present invention. It is a left view of the suitcase shown in FIG. It is a front view of the suitcase shown in FIG. It is a rear view of the suitcase shown in FIG. It is a top view of the suitcase seen from the arrow A direction in FIG. It is a bottom view of the suitcase seen from the arrow B direction in FIG. It is sectional drawing of the suitcase in the CC line in FIG. It is a right view which shows the state in motion of the suitcase shown in FIG. It is a right view which shows the suitcase which is other embodiment of this invention. It is a left view of the suitcase shown in FIG. It is a front view of the suitcase shown in FIG. It is a rear view of the suitcase shown in FIG. It is a top view of the suitcase seen from the arrow D direction in FIG. It is a bottom view of the suitcase seen from the arrow E direction in FIG. It is sectional drawing of the suitcase in the FF line in FIG. It is a right view which shows the suitcase which is other embodiment of this invention. It is a left view of the suitcase shown in FIG. It is a front view of the suitcase shown in FIG. It is a rear view of the suitcase shown in FIG. It is a top view of the suitcase seen from the arrow G direction in FIG. It is a bottom view of the suitcase seen from the arrow H direction in FIG. It is sectional drawing of the suitcase in the JJ line | wire in FIG. FIG. 17 is a right side view showing the open / close state of the opening / closing lid of the suitcase shown in FIG. 16; It is a right view of a suitcase which is other embodiments of the present invention. It is a left view of the suitcase shown in FIG. It is a front view of the suitcase shown in FIG. It is a rear view of the suitcase shown in FIG. It is a top view of the suitcase seen from the arrow K direction in FIG. It is a bottom view of the suitcase seen from the arrow L direction in FIG. It is sectional drawing of the suitcase in the MM line in FIG. It is a perspective view showing a conventional round suitcase. It is a right view which shows the suitcase which is other embodiment of this invention. It is a right view when the suitcase shown in FIG. 32 is in the state which opened the opening / closing lid.

  Hereinafter, the suitcases 100, 200, 300, 400, and 500 which are embodiments of the present invention will be described based on FIGS. 1 to 30, 32, and 33. FIG. Note that, in the suitcases 200, 300, 400, and 500, parts having the same structure and functions as the components of the suitcase 100 are shown in FIGS. 9 to 30, 31, and 33 in FIGS. The same reference numerals as in the reference numerals are added and the description is omitted. Also, in the following description, the direction of arrow S in FIG. 8 (the direction in which the suitcase is pulled) is referred to as the front (or front), and the side opposite to the direction of arrow S is referred to as the back (or back). ing.

  The suitcase 100 will be described based on FIGS. 1 to 8. As shown in FIGS. 1 to 6, the suitcase 100 has a substantially cylindrical case main body 10 capable of storing articles, and an open / close lid 12 provided on one end face of the case main body 10 in the axial center 10a direction. A plurality of (a pair of) annular rotary members 14 and 16 rotatably attached to the case body 10 so as to surround the outer periphery of the case body 10 and a pulling handle 18 integrally attached to the case body 10 And a grounding member 20 provided on the outer periphery of the case main body 10 in order to hold the case main body 10 in a standing posture on the ground plane G. The ground contact member 20 is a member having an elliptical shape in a plan view, and has a flat ground portion 20 a parallel to the tangential direction of the outer peripheral surface at a position protruding from the outer peripheral surface of the case main body 10.

  As shown in FIGS. 3 and 4, the pair of rotating bodies 14 and 16 are attached in parallel along the circumferential direction of the case body 10. Bearings 29 (see FIG. 7) are disposed between the rotating bodies 14 and 16 and the case body 10 over the entire circumference. The rotary bodies 14 and 16 are rotatable independently of each other with respect to the case main body 10.

  As shown in FIGS. 3 and 4, the open / close lid 12 is attached to one end face of the case main body 10 via a fastener 22. Further, as shown in FIG. 1, the open / close lid 12 is provided with a lock mechanism 24 for locking the fastener 22. A display 26 for attaching a logo mark or the like is provided on the outer surface of the open / close lid 12.

  The handle 18 is formed of a grip 18 a and two columns 18 b. The two columns 18b are erected from the inside of the concave handle storage portion 28 provided on the outer periphery of the case main body 10, and a grip portion 18a is provided so as to connect upper end portions thereof. The two columns 18 b can be expanded and contracted, and the handle 18 can be stored in the handle storage portion 28 by contracting the columns 18 b.

  A belt-like handle 30 for lifting the suitcase 100 is provided on the outer peripheral surface of the case body 10 at a position 180 degrees away from the ground contact member 20 around the axis 10 a.

  As shown in FIG. 7, inside the case body 10, two storage spaces 34 and 36 partitioned by the partition wall 32 are provided. In addition, since the division form inside the case main body 10 shown in FIG. 7 is an example and it is not limited to this, it is set as the form without the partition 32, or it increases a partition and provides three or more storage spaces. It can also be done.

  When using the suitcase 100, first, the suitcase 100 is placed on a suitable support surface with the side wall portion 38 on the opposite end face of the open / close lid 12 facing downward. After that, when the lock mechanism 24 is released and the fasteners 22 are opened, the open / close lid 12 can be opened or closed. Therefore, the open / close lid 12 is opened to pack the articles in the storage spaces 34, 36 in the case main body 10 it can. After the loading is completed, the open / close lid 12 is closed, the fastener 22 is closed, and the lock mechanism 24 locks.

  Thereafter, as shown in FIG. 1, when the case body 10 is erected and the ground contact member 20 is in contact with the ground plane G, the handle 18 of the suitcase 100 is erected, and the handle 30 is the case body 10. It is held in the posture located at the top of the At this time, the rotating bodies 14 and 16 are held apart from the ground plane G.

  When moving the suitcase 100, as shown in FIG. 8, when the ground contact member 20 is inclined to a position away from the ground plane G by gripping the grip portion 18a of the handle 18 by hand, the rotary bodies 14, 16 Since it abuts on the ground contact surface G, when the handle 18 is pulled in the direction of travel while keeping this inclined posture, the rotating bodies 14 and 16 rotate, and the suitcase 100 can be moved easily.

  When stopping the movement of the suitcase 100, as shown in FIG. 1, if the case main body 10 is erected again and the grounding portion 20a of the grounding member 20 is in contact with the grounding surface G, the suitcase 100 It is held in that posture. At this time, since the rotating bodies 14 and 16 are in a state of being separated from the ground contact surface G, it is possible to prevent the suitcase 100 from rolling freely.

  Since the rotating bodies 14 and 16 provided on the suitcase 100 have a large outer diameter, passing through stairs or steps is easy and noise during running is small. Further, since the case body 10 of the suitcase 100 is integrally formed, a large article storage space can be secured as compared with the suitcase 700 shown in FIG.

  Next, the suitcase 200 will be described based on FIGS. 9 to 15. As shown in FIGS. 9 to 15, in the suitcase 200, open / close lids 41 and 42 are respectively provided on both end faces of the substantially cylindrical case main body 40 in the axial center 40 a direction. The opening and closing lids 41 and 42 are provided on the case main body 40 so as to be able to open and close via the hinges 43 and 44, respectively. The opening and closing lids 41 and 42 are provided with handles 45 and 46 for opening and closing operations and locking mechanisms 47 and 48, respectively.

  Further, in order to hold the case body 40 in the standing posture on the ground plane G, a pair of ground members 49, 49 is provided on the outer periphery of the case body 40. The pair of ground members 49, 49 are substantially triangular prism-shaped members with rounded corners, and the longitudinal direction thereof is parallel to the axial center 40a of the case main body 40 in the circumferential direction of the outer peripheral surface of the case main body 40. It is provided at a distant position. The top portions 49a, 49a of the ground contact members 49, 49 project from the outer periphery of the rotating bodies 14, 16.

  In the suitcase 200, the case main body 40 is provided with mud cover 51, 52 covering the outer periphery of the rotating bodies 14, 16 along the circumferential direction. As shown in FIG. 9, the covers 51 and 52 are formed so as to cover the upper halves of the rotating bodies 14 and 16 when the suitcase 200 is in the upright state (stopped state). Further, a cup-shaped holder 50 capable of storing a can, a bottle, and the like is provided in a lower portion (a portion closer to the grounding member 49 than the handle storage portion 28) of the handle storage portion 28 on the outer periphery of the case main body 40.

  As described above, in the suitcase 200, the open / close lids 41 and 42 are provided on both end faces of the case main body 40 in the direction of the axis 40a, and therefore, the articles can be put in and out of the case main body 40 from either end face. can do. The open / close operation of the open / close lids 41 and 42 can be performed by unlocking the lock mechanisms 47 and 48 and grasping the handles 45 and 46 by hand.

  In the suitcase 200, since the pair of ground members 49, 49 are provided at positions separated in the circumferential direction of the outer periphery of the case main body 40, as shown in FIG. When standing up, the entire suitcase 200 can be stably held. Further, since the holder 50 is provided on the outer periphery of the case main body 40, cans and bottles etc. containing drinking water can be stored, which is convenient.

  Since the suitcase 200 is provided with the mudguard covers 51 and 52 covering the outer circumferences of the rotating bodies 14 and 16 along the circumferential direction, the suitcase 200 passes through a place wet with rain water or a place with a puddle Occasionally, it is possible to prevent the rotating bodies 14 and 16 from splashing water droplets or mud water around them. How to use the suitcase 200 and other advantages are the same as the suitcase 100 shown in FIG.

  Next, the suitcase 300 will be described based on FIGS. 16 to 23. As shown in FIGS. 16-23, in the case 300, both end faces in the direction of the axis 60a of the substantially cylindrical case main body 60 are closed by the side walls 61 and 62, and the upper surface portion of the outer periphery of the case main 60 The opening and closing lid 63 is provided on the The open / close lid 63 is attached to the case main body 60 via a hinge portion 64 on the back side of the case main body 60, and the handle 30 is attached to the upper surface of the open / close lid 63.

  The suitcase 300 is provided with mudproof covers 68 and 69 covering the outer circumferences of the rotating bodies 14 and 16 in the circumferential direction. The covers 68 and 69 are front cover portions 68a and 69a integrated with the case body 60 on the front side of the case body 60, and a rear cover portion 68b integrated with the open / close lid 63 on the top and back sides of the case body 60. , 69b,. When the open / close lid 63 is closed, the front cover portions 68a, 69a and the rear cover portions 68b, 69b are in close contact with each other at joint portions 68c, 69c located rearward of the handle storage portion 28.

  As shown in FIG. 22, the inside of the case body 60 of the suitcase 300 is divided into a plurality of storage spaces 66 and 67 by a partition wall 65 which is parallel to the longitudinal direction of the support 18 b of the handle 18. Further, as shown in FIG. 23, in the suitcase 300, the open / close lid 63 can be opened and closed so as to pivot around a hinge portion 64 parallel to the axial center 60a together with the handle 30 (see FIG. 22).

  As shown in FIG. 23, in the case 300, since the open / close lid 63 can be opened and closed so as to turn around the hinge portion 64, the state where the case 300 is erected on the ground surface G (grounding member Also in the state where 49 is in contact with the ground surface G), the article can be easily put in and out of the case body 60. How to use the suitcase 300 and other advantages are similar to those of the suitcases 100 and 200 shown in FIGS.

  Next, the suitcase 400 will be described based on FIG. 24 to FIG. As shown in FIGS. 24 to 30, in the suitcase 400, the open / close lid 71 is provided on one end face of the substantially cylindrical case main body 70 in the axial center 70a direction, and the other end face is closed by the side wall portion 72. ing. The open / close lid 71 is provided on the case main body 70 so as to be able to open and close via the hinge portion 73. The open / close lid 71 is provided with a handle 75 for opening / closing operation and a lock mechanism 77.

  As shown in FIG. 26 to FIG. 28, in the suitcase 400, the pair of rotating bodies 14 and 16 are arranged such that the distance between the rotating bodies 14 and 16 gradually spreads toward the ground contact surface G. The arrangement interval of the rotating bodies 14 and 16 is the widest at the portion where the ground members 49 and 49 are provided on the outer peripheral surface of the case main body 70, and from the ground members 49 and 49 along the circumferential direction on the outer peripheral surface of the case main body 70. It is the narrowest at 180 degrees apart.

  As shown in FIG. 26 and FIG. 27, when the suitcase 400 is viewed from the front side or the back side, the rotary bodies 14 and 16 are arranged in a “H” shape. In addition, the covers 51 and 52 are also arranged along the “C” -shaped inclined posture of the rotating bodies 14 and 16. Further, the open / close lid 71 and the side wall portion 61 of the case main body 70 are formed to be parallel to the rotation surfaces (not shown) of the rotary bodies 14 and 16, respectively.

  As shown in FIG. 26 and FIG. 27, in the suitcase 400, the rotating bodies 14 and 16 are arranged in a "C" shape, so the stability when pulling and moving is good. And the straightness is also excellent. Further, as shown in FIG. 24, the stability is excellent also when the suitcase 400 is in the upright state. The use of the suitcase 400 and other advantages are the same as those of the suitcases 100, 200, and 300 shown in FIGS.

  Next, the suitcase 500 will be described based on FIG. 32 and FIG. As shown in FIG. 32, in the suitcase 500, a support shaft provided on the case main body 10 in a state in which the open / close lid 81 is parallel to the axial center of the rotating bodies 14 and 16 (axial center 10a of the case main body 10). It is attached rotatably in the direction of arrow R around 80. Although the rotation range of the open / close lid 81 centering on the support shaft 80 is not limited, in the suitcase 500, it is set to a range of 180 degrees from when the open / close lid 81 is closed (when shown in FIG. 32). doing. Further, the open / close lid 81 is provided with a button 82 for opening the open / close lid 81 and a lock mechanism 24 for locking the open / close lid 81.

  As shown in FIG. 32, in the suitcase 500 in which the open / close lid 81 is in the closed state, when the button 82 is pressed, the open / close lid 81 is pivoted by the elastic mechanism (not shown) provided on the case main body 10. Move in a direction away from the case main body 10 along the longitudinal direction (parallel to the axis 10a) of the After that, as shown in FIG. 33, the open / close lid 81 is slowly rotated about the support shaft 80 in the direction of the arrow R1 by the elastic mechanism, and stops when it is rotated about 180 degrees. As a result, the open / close lid 81 is held in the open state (the state shown in FIG. 33), so that articles can be inserted into and removed from the storage spaces 34, 36.

  After the loading and unloading of the articles into the storage spaces 34 and 36, as shown in FIG. 33, the open / close lid 81 is pivoted around the support shaft 80 along arrow R2 direction, and the center 81a of the open / close lid 81 and the case When the axial center 10a of the main body 10 matches, when the open / close lid 81 is pressed toward the case main body 10 along the axial center 10a, the open / close lid 81 is closely engaged with the case main body 10 and locked. Thereafter, when the lock mechanism 24 locks, the open / close lid 81 is held so as not to open even when the button 82 is pressed.

  The suitcases 100, 200, 300, 400, 500 described based on FIGS. 1 to 30, 32, and 33 exemplify the present invention, and the suitcase of the present invention is the above-described suitcase. It is not limited to 100, 200, 300, 400, 500.

  The suitcase of the present invention can be widely used as an article transport means for traveling on a domestic or international trip, a business trip, or other luggage.

10, 40, 60, 70 Case body 10a, 40a, 60a, 70a Axial center 12, 41, 42, 63, 71, 81 Opening / closing lid 14, 16 Rotatable body 18, 45, 46, 75 Handle 18a Gripping portion 18b Strut 20 , 49 Grounding member 20a Grounding portion 22 Fastener 24, 47, 48, 77 Locking mechanism 26 Display portion 28 Handle storage portion 29 Bearing 30 Handle 32, 65 Partition 34, 36, 66, 67 Storage space 38, 61, 62, 72 Side wall 43, 44, 64, 73 Hinge 49a Top 50 Holder 51, 52, 68, 69 Cover 68a, 69a Front cover 68b, 69b Rear cover 68c, 69c Joint 80 Support shaft 81a Center 82 Button 100, 200, 300, 400, 500 Suitcase G Ground plane R, R1, R2 Arrow line

[0004]
A plurality of annular rotary bodies rotatably attached to the case body in a state of surrounding the outer periphery of the case body;
A pulling handle integrally attached to the case body;
And a grounding member provided on an outer periphery of the case main body to hold the case main body in a standing posture.
The grounding member is a member having a flat grounding portion parallel to the tangential direction of the outer peripheral surface at a position protruding from the outer peripheral surface of the case main body, or at a position separated in the circumferential direction of the outer peripheral surface of the case main body It is characterized in that it is a pair of members provided protruding from the outer periphery of the rotating body in a state in which the longitudinal direction is parallel to the axial center of the case main body.
[0018]
Here, in the suitcase, it is preferable that the case main body has a cylindrical shape or a polygonal cylindrical shape, and the rotating body is attached along the circumferential direction of the case main body.
[0019]
Further, in the suitcase, the open / close lid can be provided on at least one end face of the case main body in the axial direction.
[0020]
Further, in the suitcase, the open / close lid may be provided on the outer peripheral surface of the case main body.
[0021]
Furthermore, in the suitcase, the open / close lid can be attached to the case body via a fastener or a hinge.
[0022]
Further, in the suitcase, the open / close lid may be rotatably mounted around a pivot provided on the case main body in a state of being parallel to the axial center of the rotating body.
[0023]
[0024]
Furthermore, in the suitcase, the plurality of rotating bodies may be arranged such that the distance between the rotating bodies gradually widens toward the ground contact surface.
[0025]
Further, in the suitcase, the case body may be provided with a handle for lifting the suitcase.
[0026]
Further, in the suitcase, the case body may be provided with a mudguard cover that covers the outer periphery of the rotating body in the circumferential direction.
Effect of the Invention [0027]
According to the present invention, it is easy to pass through stairs and step portions, noise during traveling is small, and a suitcase capable of securing a relatively large article storage space

Claims (10)

A case body capable of storing an article, and an open / close lid provided on the case body;
A plurality of annular rotary bodies rotatably attached to the case body in a state of surrounding the outer periphery of the case body;
A pulling handle attached to the case body;
And a grounding member provided on an outer periphery of the case body to hold the case body in an upright posture.   The suitcase according to claim 1, wherein the case main body has a cylindrical shape or a polygonal cylindrical shape, and the rotating body is attached along a circumferential direction of the case main body.   The suitcase according to claim 2, wherein the open / close lid is provided on at least one end face in the axial direction of the case main body.   The suitcase according to claim 2, wherein the open / close lid is provided on an outer peripheral surface of the case main body.   The suitcase according to any one of claims 1 to 4, wherein the open / close lid is attached to the case main body via a fastener or a hinge.   The suit according to any one of claims 1 to 4, wherein the opening / closing lid is rotatably mounted around a pivot provided on the case main body in a state of being parallel to an axial center of the rotating body. Case.   The suitcase according to any one of claims 1 to 6, wherein the ground contact member is provided so as to protrude from the outer peripheral surface of the case main body.   The suitcase according to any one of claims 1 to 7, wherein a plurality of the rotating bodies are arranged such that a distance between the rotating bodies gradually spreads toward a ground contact surface.   The suitcase according to any one of claims 1 to 8, wherein the case body is provided with a handle.   The suitcase according to any one of claims 1 to 9, wherein the case body is provided with a mudguard cover that covers the outer periphery of the rotating body in the circumferential direction.

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