Mobile Stand

Abstract

To improve the safety of a mobile stand. The mobile stand (3) includes a main leg (6) from which a support (4) for supporting a display board protrudes, an auxiliary leg (9) attached to the main leg (6) and abutting against an installation surface (F), and a holding member (11) for holding the auxiliary leg (9) in a raised position (P2). The support (4) protrudes from the main leg (6) and is located offset toward the front end (61) of the main leg (6).

Description

[Technical Field]

[0001] The present disclosure relates to a mobile stand that movably supports a display board such as a blackboard, whiteboard, screen board, electronic blackboard, bulletin board, display, or monitor. [Background technology]

[0002] Conventionally, a portable stand that supports a display board such as a blackboard so that it can be moved relative to an installation surface is known (Patent Document 1). In this type of portable stand, the lower end of a support column that supports the display board protrudes from the center of a leg (base), and casters are rotatably attached to the underside of the leg near both ends. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility model registration No. 3196058 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described above, there is a gap between the legs and the installation surface due to the casters, and the legs are positioned higher than the installation surface, which means that there is a risk of users tripping over the legs.

[0005] One aspect of the present disclosure has been made in consideration of the above-mentioned problems, and aims to improve the safety of a mobile stand that movably supports a display board. [Means for solving the problem]

[0006] In order to solve the above problem, a mobile stand according to one embodiment of the present disclosure is a mobile stand that supports a display board so that it can be moved relative to an installation surface, and includes a main leg portion from which a support pillar that supports the display board protrudes and to which a caster having a wheel is rotatably attached, an auxiliary leg portion that is attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg and is rotatable between a support position in contact with the installation surface and a jumped-up position jumped up from the support position, and a holding member that holds the auxiliary leg portion in the jumped-up position, and the support pillar protrudes from the main leg portion and is biased toward the one end.

[0007] In order to solve the above problem, a mobile stand according to one embodiment of the present disclosure is a mobile stand that supports a display board so that it can be moved relative to an installation surface, and includes a main leg portion from which a support pillar that supports the display board protrudes and to which a caster having a wheel is rotatably attached, an auxiliary leg portion that is attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg and abuts against the installation surface, and a fall prevention member that prevents the auxiliary leg from falling off from the one end, and the support pillar protrudes from the main leg portion and is biased toward the one end. [Effects of the Invention]

[0008] According to one aspect of the present disclosure, it is possible to improve the safety of a mobile stand that movably supports a display board. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view showing a mobile display board according to a first embodiment. [Figure 2] FIG. 2 is a side view showing the mobile display board shown in FIG. [Figure 3] 3 is an enlarged side view showing a main part of the mobile stand shown in FIG. 2. FIG. [Figure 4] 4 shows the configuration of the auxiliary leg shown in FIG. 3, where reference numeral 401 is a side view of the auxiliary leg, reference numeral 402 is a top view of the auxiliary leg, and reference numeral 403 is a rear view of the auxiliary leg. [Figure 5] 4 is a side view showing the rotational operation of the auxiliary leg shown in FIG. 3. [Figure 6] FIG. 10 is an enlarged side view showing a main part of the mobile stand according to the second embodiment. [Figure 7] 7 shows the configuration of the auxiliary leg shown in FIG. 6, where reference numeral 701 is a side view of the auxiliary leg, reference numeral 702 is a top view of the auxiliary leg, and reference numeral 703 is a rear view of the auxiliary leg. [Figure 8] 7 is a side view for explaining how to attach and detach the auxiliary leg shown in FIG. 6. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Embodiment 1] An embodiment of the present disclosure will be described below. Note that the following description is an example of a mobile stand according to the present disclosure, and the technical scope of the present disclosure is not limited to the illustrated example.

[0011] [Overall configuration of the mobile display board] First, an example of the configuration of a mobile display board 1 according to this embodiment will be described. Fig. 1 is a front view showing the mobile display board 1. Fig. 2 is a side view showing the mobile display board 1 shown in Fig. 1. As shown in Figs. 1 and 2, the mobile display board 1 comprises a display board 2 and a mobile stand 3 that movably supports the display board 2.

[0012] In the following description, the direction in which the support pillars 4 of the mobile stand 3 extend may be referred to as the up-down direction, the direction in which the main legs 6 of the mobile stand 3 extend may be referred to as the front-to-rear direction (the longitudinal direction of the main legs 6), and the direction perpendicular to the up-down direction and the front-to-rear direction, i.e., the direction in which the cross bars 5 of the mobile stand 3 extend, may be referred to as the left-to-right direction.

[0013] (Display board) The display board 2 is, for example, a blackboard, whiteboard, screen board, electronic blackboard, bulletin board, display, monitor, etc. The display board 2 may be, for example, an enamel whiteboard having display surfaces (writing surfaces) 21 on both the front and back sides. The display board 2 is pivotally supported between a pair of support posts 4 of the mobile stand 3 and is rotatably supported by the mobile stand 3.

[0014] (Mobile stand) The mobile stand 3 is a platform that supports the display board 2 so that it can move relative to the installation surface F. The mobile stand 3 includes a pair of support columns 4 that support the display board 2, a cross beam (beam) 5 that connects the pair of support columns 4, a pair of main legs 6 from which the support columns 4 protrude, and casters 7 that are rotatably attached near the ends of each main leg 6. The mobile stand 3 also includes a dust pan 8 that is attached to the cross beams 5 and extends in the left-right direction below the display board 2, auxiliary legs 9 that are attached to each main leg 6, and a holding member 11 for holding the auxiliary legs 9 in the raised position.

[0015] In this embodiment, the support columns 4, cross beams 5, and main legs 6 that make up the framework of the mobile stand 3 are all made of square pipes. However, the shapes (cross-sectional shapes) of the support columns 4, cross beams 5, and main legs 6 are not limited to square, and may be circular or other shapes.

[0016] The pair of support columns 4 are disposed extending in the vertical direction so as to be approximately parallel to each other. The pair of support columns 4 have support shafts 41 on their opposing surfaces near their upper ends that support the display board 2. With both the left and right sides of the display board 2 supported by the support shafts 41, the display board 2 is rotatably supported between the pair of support columns 4.

[0017] The pair of support columns 4 are connected at their respective mid-height positions via a crosspiece 5. The crosspiece 5 is located below the display board 2 and extends in the left-right direction. A dust collector 8 for collecting ink dust and the like is attached to this crosspiece 5. The lower ends of the support columns 4 protrude from the upper surface (upper part) of the main leg 6. This allows the support columns 4 to be held in a substantially upright position.

[0018] The pair of main legs 6 are arranged to extend in the front-to-rear direction and be approximately parallel to each other. Casters 7 having wheels 71 are rotatably attached to the underside (lower part) of the main legs 6 near both ends. In addition, auxiliary legs 9 are attached to the main legs 6, extending from the ends of the main legs 6 and abutting against the installation surface F.

[0019] [Mobile stand configuration] Next, an example configuration of the mobile stand 3 will be described. Fig. 3 is an enlarged side view showing the main parts of the mobile stand 3 shown in Fig. 2. Fig. 4 shows the configuration of the auxiliary leg 9 shown in Fig. 3, where reference numeral 401 is a side view of the auxiliary leg 9, reference numeral 402 is a top view of the auxiliary leg 9, and reference numeral 403 is a rear (back) view of the auxiliary leg 9. Note that Fig. 4 shows the state in which the auxiliary leg 9 has been removed from the main leg 6.

[0020] 3, the main leg 6 includes a front end 61 located at the front side in the front-to-rear direction (longitudinal direction) and a rear end 62 located at the rear side in the front-to-rear direction. The front end 61 of the main leg 6 is an inclined end inclined such that a lower surface 64 protrudes further forward than an upper surface 63 in a side view.

[0021] The support column 4 protrudes from the upper surface 63 of the main leg 6 in a substantially upright state. In this embodiment, the support column 4 protrudes from the upper surface 63 of the main leg 6, biased toward the front end 61 of the front end 61 and rear end 62 of the main leg 6. Specifically, assuming that the length (maximum length) in the front-to-rear direction from the central axis C passing through the axis of the support column 4 to the front end 61 is the front length L1 and the length (maximum length) from the central axis C to the rear end 62 of the support column 4 is the rear length L2, the front length L1 is relatively shorter than the rear length L2 (see FIG. 3 ). In this way, in the mobile stand 3, by making the front length L1 of the main leg 6 relatively shorter than the rear length L2, the amount of protrusion of the main leg 6 forward is smaller than that of conventional mobile stands. This increases the foot space in front of the display board 2 and reduces the possibility of a user or the like tripping over the front end 61 of the main leg 6.

[0022] On the other hand, if the forward length L1 of the main legs 6 is relatively smaller than the rear length L2, the display board 2 is more likely to tip forward. Therefore, in the mobile stand 3, auxiliary legs 9 are attached to the front ends 61 of the main legs 6. The auxiliary legs 9 extend from or near the front ends 61 of the main legs 6 and come into contact with the installation surface F further forward than the wheels 71 of the casters 7 attached to the front ends 61 of the main legs 6, thereby preventing the display board 2 from tipping over. As will be described later, the auxiliary legs 9 are rotatable about pivot shafts 10 between a support position P1 where they come into contact with the installation surface F and a jump-up position P2 where they are jumped up from the support position P1 (see FIG. 5).

[0023] 3 and 4, the auxiliary leg 9 is formed by combining a plurality of metal plates, for example. The auxiliary leg 9 includes a first extension 91 that extends from the front end 61 or near the front end 61 of the main leg 6 and extends toward the installation surface F, and a second extension 92 that is connected to the first extension 91 and extends along the installation surface F. The auxiliary leg 9 also includes a pad 93 that is provided on the second extension 92 and abuts against the installation surface F, and a fixing portion 94 that fixes the first extension 91 to the front end 61 of the main leg 6.

[0024] The first extension portion 91 is a plate member that extends from the front end portion 61 of the main leg portion 6 and extends from the front end portion 61 toward the installation surface F. In this embodiment, the first extension portion 91 is disposed obliquely downward and forward from the front end portion 61 so as to be approximately parallel to the inclined front end portion 61. In other words, the angle of the first extension portion 91 roughly matches the angle of the front end portion 61. However, the first extension portion 91 may also extend downward from the front end portion 61 and be disposed approximately perpendicular to the installation surface F.

[0025] The second extension portion 92 is a plate member that is connected to the lower end of the first extension portion 91 and extends forward. The second extension portion 92 is arranged horizontally from the lower end of the first extension portion 91 toward the front so as to be approximately parallel to the installation surface F. In this embodiment, the first extension portion 91 and the second extension portion 92 are connected in series so that the angle θ formed between them is 110 degrees.

[0026] The pad 93 is an anti-slip device provided on the underside of the second extension portion 92. The pad 93 is arranged on the tip side of the underside of the second extension portion 92 (the surface facing the installation surface F) and abuts against the installation surface F. The pad 93 functions to prevent the auxiliary leg 9 from slipping at the support position P1, and also functions to prevent the second extension portion 92 from being scratched when it directly abuts against the installation surface F.

[0027] The fixing portion 94 is provided on the rear side of the first extension portion 91. The fixing portion 94 may have a fitting hole 94A into which the front end portion 61 of the main leg 6 is inserted at the support position P1 and which fits onto the front end portion 61. In this embodiment, the fixing portion 94 includes an upper plate 95 that protrudes rearward from the upper end of the first extension portion 91, a lower plate 96 that protrudes rearward at an intermediate height position of the first extension portion 91, and a pair of side plates 97 that connect the upper plate 95 and the lower plate 96. The upper plate 95 and the lower plate 96 face each other in the vertical direction, and the pair of side plates 97 face each other in the horizontal direction. The upper plate 95, the lower plate 96, and the pair of side plates 97, together with the first extension portion 91, form an angular fitting hole 94A that corresponds to the shape of the front end portion 61.

[0028] Each of the pair of side plates 97 has an elongated hole 97A that faces each other with the main leg 6 therebetween, and a pivot shaft 10 is inserted through the pair of elongated holes 97A. In this embodiment, the elongated hole 97A that penetrates in the left-right direction is formed in each of the pair of side plates 97 in the front-rear direction. In addition, a circular hole (not shown) that penetrates in the left-right direction is formed near the front end 61 of the main leg 6. With the front end 61 of the main leg 6 sandwiched between the pair of side plates 97, the pivot shaft 10 is inserted into the elongated hole 97A and the circular hole. In this way, the auxiliary leg 9 is slidable in the front-rear direction along the elongated hole 97A and is pivotally attached to the main leg 6 so as to be rotatable about the pivot shaft 10. Note that both ends of the pivot shaft 10 are provided with anti-detachment members (not shown).

[0029] As described above, the auxiliary leg 9 includes a flat first extension portion 91 that extends from the front end portion 61 of the main leg 6 and extends toward the installation surface F, and a flat second extension portion 92 that extends forward from the lower end of the first extension portion 91 along the installation surface F. This allows the height position of the second extension portion 92 of the auxiliary leg 9 to be positioned lower than the height position of the main leg 6, thereby reducing the possibility of a user or the like catching their foot on the auxiliary leg 9.

[0030] The holding member 11 is a member that holds the auxiliary leg 9 at the jump-up position P2. The holding member 11 is provided on the upper surface 63 of the main leg 6, at the front end 61 with respect to the support 4. The holding member 11 includes a protrusion 111 that protrudes from the upper surface 63 of the main leg 6 and supports the auxiliary leg 9 in the jump-up position P2, and a base portion 112 that is fixed to the upper surface 63 of the main leg 6.

[0031] The protrusion 111 and the base 112 each have a flat plate shape. In this embodiment, the holding member 11 is configured as an L-shaped metal fitting in which the protrusion 111 protrudes from the edge of the base 112 so that the protrusion 111 and the base 112 form an angle of approximately 90 degrees. The holding member 11 may have any shape as long as it includes the protrusion 111 that can support the auxiliary leg 9 at the jump-up position P2. The holding member 11 may be, for example, a T-shaped metal fitting in which the protrusion 111 protrudes from the center of the base 112.

[0032] The protrusion 111 is provided substantially parallel to the support column 4 so that a gap S is formed between the protrusion 111 and the support column 4. The upper plate 95 of the auxiliary leg 9 is inserted into this gap S at the jump-up position P2 (see FIG. 5).

[0033] [Mobile stand operation] Next, we will explain an example of the operation of the mobile stand 3. Figure 5 is a side view showing the rotational operation of the auxiliary leg 9. As shown in Figure 5, the auxiliary leg 9 is capable of rotating around a rotation axis 10 between a support position P1 where it abuts against the installation surface F and a jump-up position P2 where it is jumped up from the support position P1.

[0034] At the support position P1, the front end 61 of the main leg 6 is fitted into the fitting hole 94A of the fixing portion 94. As a result, the fixing portion 94 fits into the front end 61, and the auxiliary leg 9 is fixed at the support position P1. In this way, by fitting the fitting hole 94A of the fixing portion 94 into the front end 61 of the main leg 6, the auxiliary leg 9 can be easily fixed to the main leg 6. This eliminates the need to provide a separate locking mechanism or the like for fixing the auxiliary leg 9 at the support position P1, simplifying the structure of the mobile stand 3. This reduces the manufacturing cost of the mobile stand 3 and reduces the likelihood of malfunctions (defects) occurring in the attachment portion of the auxiliary leg 9.

[0035] When the auxiliary leg 9 is to be raised from the support position P1 to the raised position P2, first, the front end 61 of the main leg 6 is slightly lifted, and the auxiliary leg 9 is slid forward (arrow A1 in FIG. 5). This releases the engagement between the front end 61 of the main leg 6 and the fitting hole 94A of the auxiliary leg 9, allowing the auxiliary leg 9 to rotate around the rotation shaft 10.

[0036] Next, the auxiliary leg 9 is flipped up and rotated approximately 90 degrees around the pivot shaft 10 (arrow A2 in FIG. 5). Then, the auxiliary leg 9 is moved downward while standing vertically (arrow A3 in FIG. 5). At this time, with the upper plate 95 of the auxiliary leg 9 inserted into the gap S between the support column 4 and the protruding portion 111 of the holding member 11, the auxiliary leg 9 is moved downward until the lower end of the upper plate 95 abuts against the upper surface 63 of the main leg 6. This allows the auxiliary leg 9 to move from the support position P1 to the flip-up position P2.

[0037] When the auxiliary leg 9 is in the raised position P2, the holding member 11 is disposed inside the fitting hole 94A of the auxiliary leg 9. The protrusion 111 of the holding member 11 supports the inner surface 95A of the upper plate 95 of the auxiliary leg 9 from the front end 61 side. This prevents the auxiliary leg 9 from rotating toward the front end 61 side, and the auxiliary leg 9 can be held at the raised position P2. This eliminates the need to provide a separate locking mechanism or the like to fix the auxiliary leg 9 at the raised position P2, simplifying the structure of the mobile stand 3. This reduces the manufacturing cost of the mobile stand 3 and makes it less likely that the locking mechanism will malfunction.

[0038] In this way, when the display board 2 is in use, the auxiliary legs 9 abut against the installation surface F at the support position P1 to prevent the display board 2 from tipping over, and when the display board 2 is moved or stored, they are flipped up to the flip-up position P2 and moved away from the installation surface F. This means that the movement of the display board 2 is not hindered when it is being moved, and flipping up the auxiliary legs 9 reduces the dimensions of the mobile stand 3 in the front-to-rear direction, making it easier to pass through doorways, etc. Furthermore, by positioning the flipped-up auxiliary legs 9 against the wall during storage, the display board 2 can be placed close to the wall.

[0039] [Effects of the mobile stand] As described above, the mobile stand 3 according to this embodiment comprises a main leg 6 having a protruding support 4 for supporting the display board 2 and a caster 7 having a wheel 71 rotatably attached thereto, an auxiliary leg 9 attached to the front end 61 of the two front and rear ends of the main leg 6 that face each other in the longitudinal direction of the main leg 6 and that is rotatable between a support position P1 that abuts against the installation surface F and a jumped-up position P2 that is jumped up from the support position P1, and a holding member 11 that holds the auxiliary leg 9 at the jumped-up position P2, and the support 4 is protruding from the main leg 6, biased toward the front end 61.

[0040] In the mobile stand 3, the length of the main leg 6 on the front end 61 side where the auxiliary leg 9 is attached is relatively short, reducing the possibility of a user or the like tripping over the main leg 6. Therefore, according to this embodiment, it is possible to improve the safety of the mobile stand 3 that movably supports the display board 2. In addition, since the mobile stand 3 includes a holding member 11 that holds the auxiliary leg 9 at the jump-up position P2, the jumped-up auxiliary leg 9 can be held at the jump-up position P2.

[0041] The auxiliary leg 9 according to this embodiment can also be attached to an existing mobile stand by modifying the leg of the conventional mobile stand.

[0042] [Embodiment 2] Other embodiments of the present disclosure will be described below. For ease of explanation, the same reference numerals will be used to designate components having the same functions as those described in the previous embodiment, and the description thereof will not be repeated.

[0043] [Mobile stand configuration] An example of the configuration of the mobile stand 3A according to this embodiment will be described below. The mobile stand 3A according to this embodiment differs mainly from the mobile stand 3 equipped with the aforementioned rotatable auxiliary legs 9 in that the auxiliary legs 9A have a simple detachable structure.

[0044] Fig. 6 is an enlarged side view showing a main part of the mobile stand 3A. Fig. 7 shows the configuration of the auxiliary leg 9A shown in Fig. 6, where reference numeral 701 is a side view of the auxiliary leg 9A, reference numeral 702 is a top view of the auxiliary leg 9A, and reference numeral 703 is a rear (back) view of the auxiliary leg 9A. Note that Fig. 7 shows the auxiliary leg 9A detached from the main leg 6.

[0045] 6, the support pillar 4 is located closer to the front end 61 of the front end 61 and rear end 62 of the main leg 6, and protrudes from the upper surface 63 of the main leg 6. In this embodiment, the support pillar 4 is fixed to the upper surface 63 of the main leg 6 with a fixing bolt 13 inserted from the lower surface 64 of the main leg 6. This makes it possible to easily attach the main leg 6 according to this embodiment to the support pillar of an existing mobile stand, for example, with the fixing bolt 13.

[0046] The mobile stand 3A also includes a grip bolt (a fall prevention member) 14 that prevents the auxiliary leg 9 from falling off from the front end 61 of the main leg 6. The grip bolt 14 includes a shaft 141 having a thread formed on its circumferential surface, and a grip 142 fixed to the end of the shaft 141.

[0047] As shown in Fig. 7, auxiliary leg 9A has screw hole 52B formed in the top plate 95 of fixing part 94, penetrating in the up-down direction (plate thickness direction). Grip bolt 14 screws into screw hole 52B formed in fixing part 94. In mobile stand 3A, auxiliary leg 9 is fitted onto front end 61 of main leg 6, and then grip bolt 14 is tightened to fix auxiliary leg 9 to main leg 6.

[0048] The grip bolt 14 may have a structure in which the tip 141A of the shaft 141 is pressed against the upper surface (circumferential surface) 63 of the main leg 6 through the screw hole 52B. This allows the auxiliary leg 9 to be fixed to the main leg 6 without forming a screw hole (round hole) or the like in the upper surface 63 of the main leg 6 for passing the shaft 141 of the grip bolt 14 through.

[0049] However, a screw hole or the like that screws into the shaft 141 may be provided on the upper surface 63 of the main leg 6. This allows the auxiliary leg 9 to be fixed to the main leg 6 more reliably.

[0050] [How to attach and detach the auxiliary legs] Next, a description will be given of an example of a method for attaching and detaching the auxiliary leg 9A to and from the main leg 6. Fig. 8 is a side view for explaining a method for attaching and detaching the auxiliary leg 9A.

[0051] 8, when attaching the auxiliary leg 9A to the front end 61 of the main leg 6, first, the fixing portion 94 of the auxiliary leg 9 is fitted into the front end 61 from the front (arrow B1 in FIG. 8). As a result, the front end 61 of the main leg 6 fits into the fitting hole 94A of the fixing portion 94.

[0052] Next, the grip bolt 14 is tightened with the auxiliary leg 9 fitted to the front end 61 of the main leg 6. As a result, the tip 141A of the grip bolt 14 is pressed against the upper surface 63 of the main leg 6, thereby fixing the auxiliary leg 9 to the main leg 6 so that the auxiliary leg 9 does not fall off from the main leg 6.

[0053] On the other hand, when removing the auxiliary leg 9A from the front end 61 of the main leg 6, first, the grip bolt 14 is loosened until the tip 141A of the grip bolt 14 is separated from the upper surface 63 of the main leg 6.

[0054] Next, the front end 61 side of the main leg 6 is lifted slightly, and the auxiliary leg 9 is pulled forward from in front of the front end 61 (arrow B2 in Figure 8). This releases the engagement between the fitting hole 94A of the fixing part 94 and the front end 61 of the main leg 6, allowing the auxiliary leg 9A to be removed from the main leg 6.

[0055] In this way, the auxiliary legs 9 are detachable from the main legs 6. When the display board 2 is in use, the auxiliary legs 9 are attached to the main legs 6 and abut against the installation surface F to prevent the display board 2 from tipping over. Furthermore, when the display board 2 is being moved or stored, the auxiliary legs 9 may be detached from the main legs 6. This allows the display board 2 to move freely when being moved, and by removing the auxiliary legs 9, the dimensions of the mobile stand 3A in the front-to-rear direction are reduced, making it easier to pass through doorways and the like. Furthermore, when stored, the display board 2 can be placed close to a wall by positioning the front end 61 of the main legs 6 against the wall.

[0056] [Effects of the mobile stand] As described above, the mobile stand 3A according to this embodiment comprises a main leg 6 having a protruding support 4 for supporting the display board 2 and a caster 7 having a wheel 71 rotatably attached thereto, an auxiliary leg 9 attached to the front end 61 of the two front and rear ends of the main leg 6 that face each other in the longitudinal direction of the main leg 6 and abuts against the installation surface F, and a grip bolt 14 that prevents the auxiliary leg 9 from falling off the front end 61 of the main leg 6, and the support 4 is protruding from the main leg 6, biased toward the front end 61.

[0057] In the mobile stand 3A, the length of the main leg 6 on the front end 61 side where the auxiliary leg 9A is attached is relatively short, reducing the possibility of a user or the like tripping over the main leg 6. Therefore, this embodiment improves the safety of the mobile stand 3 that movably supports the display board 2. Furthermore, the mobile stand 3A is provided with grip bolts 14 that prevent the auxiliary legs 9 from falling off the front end 61 of the main leg 6, making it possible to prevent the auxiliary legs 9 from falling off the main leg 6 with a simple structure and reducing the manufacturing cost of the mobile stand 3A.

[0058] The auxiliary leg 9A according to this embodiment can be attached to an existing mobile stand by modifying the leg of the conventional mobile stand.

[0059] 〔summary〕 The mobile stand according to aspect 1 of the present disclosure is a mobile stand that supports a display board so that it can be moved relative to an installation surface, and includes a main leg portion from which a support pillar that supports the display board protrudes and to which a caster having a wheel is rotatably attached, an auxiliary leg portion that is attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg and is rotatable between a support position in contact with the installation surface and a jumped-up position that is jumped up from the support position, and a holding member that holds the auxiliary leg portion in the jumped-up position, and the support pillar protrudes from the main leg portion, being biased toward the one end.

[0060] In the above configuration, the length of the main leg at the end where the auxiliary leg is attached is relatively short, reducing the possibility of a user or the like getting their foot caught in the main leg. Therefore, the above configuration improves the safety of the portable stand that movably supports the display board. In addition, since the support member that holds the auxiliary leg in the raised position is provided, the raised auxiliary leg can be maintained in the raised position.

[0061] In a mobile stand according to aspect 2 of the present disclosure, in aspect 1, the holding member may include a protrusion that protrudes from the main leg portion at the one end side relative to the support pillar and supports the auxiliary leg portion in the raised position.

[0062] In this configuration, the raised auxiliary leg can be supported by the protrusion, so that the auxiliary leg can be held in the raised position to prevent it from rotating.

[0063] In the mobile stand according to aspect 3 of the present disclosure, in aspect 2, a gap may be provided between the protrusion and the support, and a portion of the auxiliary leg may be inserted into the gap when in the support position.

[0064] According to the above configuration, the auxiliary leg can be held in the raised position by supporting a part of the auxiliary leg inserted into the gap between the protrusion and the support by the protrusion.

[0065] In a portable stand according to aspect 4 of the present disclosure, in aspect 2, the holding member may further include a base portion fixed to the peripheral surface of the main leg portion, and the protrusion portion may protrude from the base portion.

[0066] According to the above configuration, for example, an L-shaped or T-shaped metal fitting or the like can be used as the holding member, and the holding member can be easily added to the mobile stand.

[0067] A mobile stand according to aspect 5 of the present disclosure is a mobile stand that supports a display board so that it can be moved relative to an installation surface, and includes a main leg portion from which a support pillar that supports the display board protrudes and to which a caster having a wheel is rotatably attached, an auxiliary leg portion that is attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg and abuts the installation surface, and a fall prevention member that prevents the auxiliary leg from falling off from the one end, and the support pillar protrudes from the main leg portion, being biased toward the one end.

[0068] In the above configuration, the length of the main leg at the end where the auxiliary leg is attached is relatively short, reducing the possibility of a user tripping over the main leg. Therefore, the above configuration improves the safety of the portable stand that movably supports the display board. Furthermore, the provision of a fall prevention member that prevents the auxiliary leg from falling off the one end prevents the auxiliary leg from falling off the main leg.

[0069] In a mobile stand according to aspect 6 of the present disclosure, in aspect 5, the auxiliary leg includes a fixing portion into which the one end is inserted and which engages with the end, and the anti-fall-out member may be a bolt that screws into a screw hole formed in the fixing portion.

[0070] According to the above configuration, the auxiliary leg can be fixed to the main leg by fastening the bolt in a state where the auxiliary leg is fitted onto one end of the main leg.

[0071] In the mobile stand according to a seventh aspect of the present disclosure, in the sixth aspect, the tip of the bolt may be pressed against the circumferential surface of the main leg through the screw hole.

[0072] According to the above configuration, the auxiliary leg can be fixed to the main leg by fitting the auxiliary leg to one end of the main leg and then tightening the bolt to press the tip of the bolt against the peripheral surface of the main leg.

[0073] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of symbols]

[0074] 2: Display board 3,3A:Mobile stand 4: Prop 6: Main leg 7: Caster 9,9A: Auxiliary legs 11: Holding member 14: Grip bolt (anti-falling part) 61: Front end (one end) 62: Rear end 63:Top surface (peripheral surface) 71:Wheel 91: 1st extension part 92:Second extension part 94: Fixed part 94A: Fitting hole 111: Protrusion (holding member) 112: Base part (holding member) F: Installation surface L1: Front length L2: rear length S: Gap

Claims

1. A mobile stand that supports a display board so that it can be moved relative to an installation surface, a main leg portion on which a support column for supporting the display board is protruding and on which a caster having a wheel is rotatably attached; an auxiliary leg attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg, the auxiliary leg being rotatable between a support position in contact with the installation surface and a jumped-up position jumped up from the support position; a holding member that holds the auxiliary leg at the raised position; Equipped with the support pillar is provided protruding from the main leg portion while being biased toward the one end portion, the holding member includes a protrusion that protrudes from the main leg portion at the one end side relative to the support column and supports the auxiliary leg portion in the raised position, a gap is provided between the support and the protrusion; A portable stand in which a portion of the auxiliary leg is inserted into the gap when in the raised position.

2. A mobile stand that supports a display board so that it can be moved relative to an installation surface, a main leg portion on which a support column for supporting the display board is protruding and on which a caster having a wheel is rotatably attached; an auxiliary leg attached to one of two ends of the main leg that face each other in the longitudinal direction of the main leg, the auxiliary leg being rotatable between a support position in contact with the installation surface and a jumped-up position jumped up from the support position; a holding member that holds the auxiliary leg at the raised position; Equipped with the support pillar is provided protruding from the main leg portion while being biased toward the one end portion, The holding member is a protrusion that protrudes from the main leg at the one end side relative to the support pillar and supports the auxiliary leg in the raised position; a base portion fixed to a peripheral surface of the main leg portion, The protrusion is provided to protrude from the base portion.

3. A mobile stand that supports a display board so that it can be moved relative to an installation surface, a main leg portion on which a support column for supporting the display board is protruding and on which a caster having a wheel is rotatably attached; an auxiliary leg attached to one of two ends of the main leg that face each other in a longitudinal direction of the main leg and that abuts against the installation surface; a fall prevention member that prevents the auxiliary leg from falling off from the one end; Equipped with the support pillar is provided protruding from the main leg portion while being biased toward the one end portion, the auxiliary leg includes a fixing portion into which the one end is inserted and which fits with the one end, A portable stand, wherein the anti-fall member is a bolt that screws into a screw hole formed in the fixed portion.

4. The portable stand according to claim 3 , wherein the bolt has a tip portion that is pressed against the peripheral surface of the main leg portion through the screw hole.

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