Mobile stand

Abstract

Improve the safety of the mobile stand. [Solution] The mobile stand (3) comprises a main leg portion (6) from which a support column (4) for supporting the display board is attached, an auxiliary leg portion (9) attached to the main leg portion (6) and in contact with the installation surface (F), and a holding member (11) that holds the auxiliary leg portion (9) in the raised position (P2). The support column (4) is located off-center towards the front end portion (61) of the main leg portion (6) and is attached to the main leg portion (6).

Description

Technical Field

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[0001] The present disclosure relates to a mobile stand that movably supports display boards such as blackboards, whiteboards, screen boards, electronic blackboards, bulletin boards, displays, monitors, etc.

Background Art

[0002] Conventionally, a mobile stand that movably supports a display board such as a blackboard with respect to an installation surface is known (Patent Document 1). In this type of mobile stand, the lower end of the support column that supports the display board protrudes from the central part of the leg part (base part), and casters are rotatably attached to the lower surfaces near both ends of the leg part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the prior art as described above, a gap corresponding to the casters occurs between the leg part and the installation surface, and the leg part is disposed at a position higher than the installation surface. For this reason, there was a possibility that a user or the like might catch their foot on the leg part.

[0005] One aspect of the present disclosure has been made in view of the above problems, and an object thereof is to improve the safety of a mobile stand that movably supports a display board.

Means for Solving the Problems

[0006] To solve the aforementioned problems, a mobile stand according to one aspect of the present disclosure is a mobile stand for movably supporting a display board with respect to an installation surface, comprising: a main leg portion on which a support column for supporting the display board is provided and to which casters having wheels are rotatably attached; an auxiliary leg portion attached to one of the two ends of the main leg portion that are opposite to each other in the longitudinal direction of the main leg portion and rotatable between a support position that abuts the installation surface and a flipped-up position that is flipped up from the support position; and a holding member that holds the auxiliary leg portion in the flipped-up position, wherein the support column is located biased toward the one end side and protrudes from the main leg portion.

[0007] To solve the aforementioned problems, a mobile stand according to one aspect of the present disclosure is a mobile stand that supports a display board so as to be movable with respect to an installation surface, comprising: a main leg portion on which a support column for supporting the display board is provided and to which a caster having a wheel is rotatably attached; an auxiliary leg portion attached to one of the two ends of the main leg portion that are opposite to each other in the longitudinal direction of the main leg portion and in contact with the installation surface; and a fall prevention member for preventing the auxiliary leg portion from falling off the one end, wherein the support column is located biased toward the one end and protrudes from the main leg portion. [Effects of the Invention]

[0008] According to one aspect of this disclosure, the safety of a mobile stand that movably supports a display board can be improved. [Brief explanation of the drawing]

[0009] [Figure 1] This is a front view showing a mobile display board according to Embodiment 1. [Figure 2] This is a side view showing the mobile display board shown in Figure 1. [Figure 3] This is a side view showing an enlarged view of the main parts of the mobile stand shown in Figure 2. [Figure 4] Figure 3 shows the configuration of the auxiliary leg, where reference numeral 401 denotes a side view of the auxiliary leg, reference numeral 402 denotes a top view of the auxiliary leg, and reference numeral 403 denotes a rear view of the auxiliary leg. [Figure 5] Figure 3 is a side view showing the rotational movement of the auxiliary leg. [Figure 6] This is an enlarged side view showing the main part of the mobile stand according to Embodiment 2. [Figure 7] Figure 6 shows the configuration of the auxiliary leg, where reference numeral 701 denotes a side view of the auxiliary leg, reference numeral 702 denotes a top view of the auxiliary leg, and reference numeral 703 denotes a rear view of the auxiliary leg. [Figure 8] Figure 6 is a side view illustrating the method for attaching and detaching the auxiliary legs shown in Figure 6. [Modes for carrying out the invention]

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

[0011] [Overall configuration of the mobile display board] First, an example of the configuration of the mobile display board 1 according to this embodiment will be described. Figure 1 is a front view showing the mobile display board 1. Figure 2 is a side view showing the mobile display board 1 shown in Figure 1. As shown in Figures 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 explanation, the direction in which the support column 4 of the mobile stand 3 extends may be referred to as the vertical direction, the direction in which the main leg portion 6 of the mobile stand 3 extends may be referred to as the front-to-back direction (the longitudinal direction of the main leg portion 6), and the direction perpendicular to the vertical and front-to-back directions, that is, the direction in which the crossbar 5 of the mobile stand 3 extends may be referred to as the left-to-right direction.

[0013] (Display board) The display board 2 is, for example, a blackboard, a whiteboard, a screen board, an electronic blackboard, a bulletin board, a display, a 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 columns 4 of the mobile stand 3 and is rotatably supported by the mobile stand 3.

[0014] (Mobile stand) The mobile stand 3 is a pedestal that supports the display board 2 movably with respect to the installation surface F. The mobile stand 3 includes a pair of columns 4 that support the display board 2, a cross bar (beam) 5 that connects between the pair of columns 4, a pair of main legs 6 from which the columns 4 project, and casters 7 that are rotatably attached near the ends of each main leg 6. Further, the mobile stand 3 includes a powder receiver 8 that is attached to the cross bar 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 up - jumped position.

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

[0016] The pair of columns 4 extends vertically and is arranged so as to be substantially parallel to each other. The pair of columns 4 has support shafts 41 for pivotally supporting the display board 2 on the opposing surfaces near the upper end portions. By pivotally supporting the left and right sides of the display board 2 by the support shafts 41, the display board 2 is rotatably supported between the pair of columns 4.

[0017] The pair of columns 4 are connected via the cross bar 5 at intermediate height positions of each. The cross bar 5 is located below the display board 2 and extends in the left - right direction. A powder receiver 8 for receiving ink powder, etc. is attached to this cross bar 5. Further, the lower ends of the columns 4 project from the upper surfaces (upper parts) of the main legs 6. Thereby, the columns 4 are held in a substantially upright state.

[0018] A pair of main legs 6 are arranged to extend in the front-rear direction so as to be substantially parallel to each other. Casters 7 having wheels 71 are rotatably attached to the lower surfaces (lower parts) near both ends of the main legs 6. Further, an auxiliary leg 9 that extends from an end of the main leg 6 and abuts on the installation surface F is attached to the main leg 6.

[0019] [Configuration of the Mobile Stand] Next, a configuration example of the mobile stand 3 will be described. FIG. 3 is a side view showing an enlarged main part of the mobile stand 3 shown in FIG. 2. FIG. 4 shows the configuration of the auxiliary leg 9 shown in FIG. 3, 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 a state where the auxiliary leg 9 is removed from the main leg 6.

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

[0021] A support column 4 protrudes substantially upright on the upper surface 63 of the main leg 6. In the present embodiment, the support column 4 is unevenly disposed on the front end portion 61 side of the front end portion 61 and the rear end portion 62 of the main leg 6 and protrudes from the upper surface 63 of the main leg 6. Specifically, when the length (maximum length) in the front-rear direction from the central axis C passing through the axis of the support column 4 to the front end portion 61 is defined as the front length L1 and the length (maximum length) from the central axis C of the support column 4 to the rear end portion 62 is defined as the rear length L2, the front length L1 is relatively smaller than the rear length L2 (see FIG. 3). Thus, in the mobile stand 3, by making the front length L1 of the main leg 6 relatively smaller than the rear length L2, the protruding amount of the front side of the main leg 6 is smaller than that of the conventional mobile stand. Thereby, the foot space on the front side of the display board 2 becomes wider, and the possibility that a user or the like catches a foot on the front end portion 61 side of the main leg 6 can be reduced.

[0022] On the other hand, if the front length L1 of the main leg 6 is made relatively smaller than the rear length L2, the display board 2 is more likely to tip over forward. Therefore, in the mobile stand 3, an auxiliary leg 9 is attached to the front end 61 of the main leg 6. The auxiliary leg 9 extends from the front end 61 of the main leg 6 or near the front end 61 and contacts the mounting surface F in front of the wheel 71 of the caster 7 attached to the front end 61 of the main leg 6, thereby preventing the display board 2 from tipping over. As will be described later, the auxiliary leg 9 is rotatable around the pivot axis 10 between a support position P1 that contacts the mounting surface F and an elevated position P2 that is flipped up from the support position P1 (see Figure 5).

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

[0024] The first extension portion 91 is a plate material 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 positioned diagonally from the front end portion 61 toward the front and diagonally downward so as to be approximately parallel to the inclined front end portion 61. In other words, the angle of the first extension portion 91 is approximately the same as the angle of the front end portion 61. However, the first extension portion 91 may extend downward from the front end portion 61 and be positioned approximately perpendicular to the installation surface F.

[0025] The second extension portion 92 is a plate material connected to the lower end of the first extension portion 91 and extending forward. The second extension portion 92 is positioned 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 a series such that the angle θ between them is 110 degrees.

[0026] The pad 93 is an anti-slip surface provided on the lower surface of the second extension portion 92. The pad 93 is positioned on the tip side of the lower surface (the surface facing the installation surface F) of the second extension portion 92 and comes into contact with the installation surface F. The pad 93 has an anti-slip function for the auxiliary leg portion 9 at the support position P1, and also has a function to prevent damage to the installation surface F by preventing the second extension portion 92 from coming into direct contact with 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 portion 6 is inserted at the support position P1 and which fits into the front end portion 61. In this embodiment, the fixing portion 94 includes an upper plate 95 protruding rearward from the upper end of the first extension portion 91, a lower plate 96 protruding rearward at an intermediate height position of the first extension portion 91, and a pair of side plates 97 connecting 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 left-right direction. The upper plate 95, the lower plate 96 and the pair of side plates 97 and the first extension portion 91 form a square fitting hole 94A corresponding to the shape of the front end portion 61.

[0028] Each of the pair of side plates 97 has an elongated hole 97A facing the main leg portion 6, and a pivot shaft 10 is inserted through one pair of elongated holes 97A. In this embodiment, each of the pair of side plates 97 has an elongated hole 97A that penetrates in the left-right direction and is formed in the front-rear direction. In addition, a round hole (not shown) that penetrates in the left-right direction is formed near the front end portion 61 of the main leg portion 6. With the front end portion 61 of the main leg portion 6 sandwiched between the pair of side plates 97, the pivot shaft 10 is inserted into the elongated hole 97A and the round hole. As a result, the auxiliary leg portion 9 is pivotally attached to the main leg portion 6 so that it can slide in the front-rear direction along the elongated hole 97A and rotate around the pivot shaft 10. Note that retaining members (not shown) are provided at both ends of the pivot shaft 10.

[0029] Thus, the auxiliary leg portion 9 includes a flat plate-shaped first extension portion 91 that extends from the front end portion 61 of the main leg portion 6 and extends toward the installation surface F, and a flat plate-shaped second extension portion 92 that extends forward along the installation surface F from the lower end portion 91 of the first extension portion 91. Therefore, the height position of the second extension portion 92 of the auxiliary leg portion 9 can be set lower than the height position of the main leg portion 6, thereby reducing the possibility of users tripping over the auxiliary leg portion 9.

[0030] The holding member 11 is a member that holds the auxiliary leg 9 in the raised position P2. The holding member 11 is located on the upper surface 63 of the main leg 6 and is provided at the front end 61 relative to the support column 4. The holding member 11 includes a projection 111 that protrudes from the upper surface 63 of the main leg 6 and supports the auxiliary leg 9 in the raised position P2, and a base 112 that is fixed to the upper surface 63 of the main leg 6.

[0031] Each of the protruding portion 111 and the base portion 112 is flat. In this embodiment, the holding member 11 is made of an L-shaped metal fitting in which the protruding portion 111 is projected from the edge of the base portion 112 such that the protruding portion 111 and the base portion 112 form an angle of approximately 90 degrees. The holding member 11 only needs to have a shape that includes a protruding portion 111 capable of supporting the auxiliary leg portion 9 at the jumped-up position P2. The holding member 11 may also be, for example, a T-shaped metal fitting in which the protruding portion 111 is projected from the center of the base portion 112.

[0032] The protruding portion 111 is provided approximately parallel to the support column 4 so as to form a gap S between it and the support column 4. The upper plate 95 of the auxiliary leg portion 9 is inserted into this gap S when the jumped position P2 is reached (see Figure 5).

[0033] [Operation of the mobile stand] Next, an example of the operation of the mobile stand 3 will be described. Figure 5 is a side view showing the rotational movement of the auxiliary leg 9. As shown in Figure 5, the auxiliary leg 9 is rotatable around the pivot axis 10 between a support position P1 in contact with the installation surface F and an elevated position P2 that is flipped up from the support position P1.

[0034] At the support position P1, the front end portion 61 of the main leg portion 6 is fitted into the fitting hole 94A of the fixing portion 94. This causes the fixing portion 94 to fit onto the front end portion 61, fixing the auxiliary leg portion 9 to the support position P1. In this way, by fitting the fitting hole 94A of the fixing portion 94 onto the front end portion 61 of the main leg portion 6, the auxiliary leg portion 9 can be easily fixed to the main leg portion 6. Therefore, there is no need to provide a separate locking mechanism or the like to fix the auxiliary leg portion 9 to the support position P1, and the structure of the mobile stand 3 can be simplified. Consequently, the manufacturing cost of the mobile stand 3 can be reduced, and malfunctions (failures) of the attachment portion of the auxiliary leg portion 9 are less likely to occur.

[0035] When the auxiliary leg 9 is flipped up from the support position P1 to the flipped-up 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 Figure 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 pivot axis 10.

[0036] Next, the auxiliary leg 9 is flipped upward and rotated approximately 90 degrees around the pivot axis 10 (arrow A2 in Figure 5). Then, the auxiliary leg 9 is moved downward while standing vertically (arrow A3 in Figure 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 contacts the upper surface 63 of the main leg 6. This allows the auxiliary leg 9 to be moved from the support position P1 to the flipped-up position P2.

[0037] When the auxiliary leg 9 is in the raised position P2, the holding member 11 is positioned 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. As a result, the holding member 11 prevents the auxiliary leg 9 from rotating toward the front end 61 side, and the auxiliary leg 9 can be held in the raised position P2. Therefore, there is no need to provide a separate locking mechanism to fix the auxiliary leg 9 in the raised position P2, and the structure of the mobile stand 3 can be simplified. Consequently, the manufacturing cost of the mobile stand 3 can be reduced, and the likelihood of failure (malfunction) of the locking mechanism is reduced.

[0038] Thus, when the display board 2 is in use, the auxiliary legs 9 contact the mounting surface F at the support position P1 to prevent the display board 2 from tipping over. When the display board 2 is being moved or stored, the auxiliary legs 9 are flipped up to the flipped-up position P2, separating it from the mounting surface F. Therefore, the movement of the display board 2 is not hindered when moving it, and the dimensions of the mobile stand 3 in the front-to-back direction are reduced by flipping up the auxiliary legs 9, making it easier to pass through doorways and other openings. Furthermore, by positioning the flipped-up auxiliary legs 9 towards the wall when storing it, the display board 2 can be placed closer to the wall.

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

[0040] In the mobile stand 3, the length of the main leg portion 6 on the front end portion 61 to which the auxiliary leg portion 9 is attached is relatively smaller, thus reducing the possibility of users tripping over the main leg portion 6. Therefore, according to this embodiment, the safety of the mobile stand 3 that movably supports the display board 2 can be improved. In addition, since the mobile stand 3 is equipped with a holding member 11 that holds the auxiliary leg portion 9 in the flipped-up position P2, the flipped-up auxiliary leg portion 9 can be held in the flipped-up position P2.

[0041] Furthermore, the auxiliary leg portion 9 according to this embodiment can be attached to existing mobile stands by modifying the legs of conventional mobile stands.

[0042] [Embodiment 2] Other embodiments of this disclosure are described below. For the sake of convenience, components having the same function as those described in the above embodiments are denoted by the same reference numerals, and their descriptions are not repeated.

[0043] [Portable stand configuration] An example of the configuration of the mobile stand 3A according to this embodiment will now be described. The mobile stand 3A according to this embodiment differs mainly from the mobile stand 3 equipped with the rotatable auxiliary leg 9 described above in that the auxiliary leg 9A has a detachable, simple structure.

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

[0045] As shown in Figure 6, the support column 4 is positioned towards the front end 61 side of the front end 61 and rear end 62 of the main leg portion 6, and protrudes from the upper surface 63 of the main leg portion 6. In this embodiment, the support column 4 is fixed to the upper surface 63 of the main leg portion 6 by fixing bolts 13 inserted from the lower surface 64 of the main leg portion 6. Therefore, for example, the main leg portion 6 according to this embodiment can be easily attached to the support column of an existing mobile stand using the fixing bolts 13.

[0046] Furthermore, the mobile stand 3A is equipped with a grip bolt (anti-detachment member) 14 to prevent the auxiliary leg 9 from falling off the front end 61 of the main leg 6. The grip bolt 14 includes a shaft portion 141 with screw threads formed on its circumferential surface and a grip 142 fixed to the end of the shaft portion 141.

[0047] As shown in Figure 7, the auxiliary leg portion 9A has a screw hole 52B formed through the upper plate 95 of the fixing portion 94 in the vertical direction (plate thickness direction). The grip bolt 14 is screwed into the screw hole 52B formed in the fixing portion 94. In the movable stand 3A, the auxiliary leg portion 9 is fixed to the main leg portion 6 by tightening the grip bolt 14 while the auxiliary leg portion 9 is fitted onto the front end portion 61 of the main leg portion 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 landing gear 6 via a screw hole 52B. This allows the auxiliary landing gear 9 to be fixed to the main landing gear 6 without forming a screw hole (round hole) or the like on the upper surface 63 of the main landing gear 6 for passing the shaft 141 of the grip bolt 14 through.

[0049] However, the upper surface 63 of the main leg portion 6 may be provided with a screw hole or the like for screwing into the shaft portion 141. This allows the auxiliary leg portion 9 to be securely fixed by the main leg portion 6.

[0050] [How to attach and detach the support legs] Next, an example of how to attach and detach the auxiliary leg 9A to the main leg 6 will be described. Figure 8 is a side view illustrating how to attach and detach the auxiliary leg 9.

[0051] As shown in Figure 8, when attaching the auxiliary leg portion 9A to the front end portion 61 of the main leg portion 6, first, the fixing portion 94 of the auxiliary leg portion 9 is fitted onto the front end portion 61 from the front (arrow B1 in Figure 8). This causes the front end portion 61 of the main leg portion 6 to fit into the fitting hole 94A of the fixing portion 94.

[0052] Next, with the auxiliary leg portion 9 fitted onto the front end portion 61 of the main leg portion 6, the grip bolt 14 is tightened. This causes the tip portion 141A of the grip bolt 14 to press against the upper surface 63 of the main leg portion 6, thereby fixing the auxiliary leg portion 9 to the main leg portion 6 so that it does not fall off.

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

[0054] Next, slightly lift the front end 61 of the main landing gear 6 and pull the auxiliary landing gear 9 forward from the 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 landing gear 6, allowing the auxiliary landing gear 9A to be removed from the main landing gear 6.

[0055] As described above, 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 come into contact with the mounting surface F to prevent the display board 2 from tipping over. When moving or storing the display board 2, the auxiliary legs 9 may be removed from the main legs 6. This does not hinder the movement of the display board 2 when moving it, and by removing the auxiliary legs 9, the dimensions of the mobile stand 3A in the front-to-back direction are reduced, making it easier to pass through doorways and other openings. Furthermore, when storing the stand, the front end 61 of the main legs 6 can be positioned closer to the wall, allowing the display board 2 to be placed closer to the wall.

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

[0057] In the mobile stand 3A, the length of the main leg 6 on the front end 61 side to which the auxiliary leg 9A is attached is relatively small, thus reducing the possibility of users tripping over the main leg 6. Therefore, according to this embodiment, the safety of the mobile stand 3 that movably supports the display board 2 can be improved. Furthermore, since the mobile stand 3A is equipped with a grip bolt 14 to prevent the auxiliary leg 9 from falling off the front end 61 of the main leg 6, the auxiliary leg 9 can be prevented from falling off the main leg 6 with a simple structure, and the manufacturing cost of the mobile stand 3A can be reduced.

[0058] Furthermore, the auxiliary leg portion 9A according to this embodiment can be attached to existing mobile stands by modifying the legs of conventional mobile stands.

[0059] 〔summary〕 A movable stand according to Embodiment 1 of the present disclosure is a movable stand for supporting a display board so as to be movable with respect to an installation surface, comprising: a main leg portion on which a support column for supporting the display board is provided and to which casters having wheels are rotatably attached; an auxiliary leg portion attached to one of the two ends of the main leg portion that are opposite to each other in the longitudinal direction of the main leg portion and rotatable between a support position that abuts the installation surface and a flipped-up position that is flipped up from the support position; and a holding member that holds the auxiliary leg portion in the flipped-up position, wherein the support column is located biased toward the one end side and is provided protruding from the main leg portion.

[0060] In the above configuration, the length of the main leg on one end to which the auxiliary leg is attached is relatively smaller, thus reducing the possibility of users tripping over the main leg. Therefore, the above configuration improves the safety of the mobile stand that movably supports the display board. In addition, since a holding member is provided to hold the auxiliary leg in the flipped-up position, the flipped-up auxiliary leg can be held in the flipped-up position.

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

[0062] In the above configuration, the raised auxiliary leg can be supported by the protruding part, thereby preventing the auxiliary leg from rotating and keeping it in the raised position.

[0063] In the mobile stand according to embodiment 3 of the present disclosure, in embodiment 2, there is a gap between the protruding portion and the support column, and a part of the auxiliary leg portion may be inserted into the gap at 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 protruding part and the support column with the protruding part.

[0065] In the mobile stand according to embodiment 4 of the present disclosure, in embodiment 2, the holding member further includes a base portion fixed to the circumferential surface of the main leg portion, and the protruding portion may be provided protruding from the base portion.

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

[0067] A mobile stand according to aspect 5 of the present disclosure is a mobile stand for supporting a display board so as to be movable with respect to an installation surface, comprising: a main leg portion on which a support column for supporting the display board is provided and to which a caster having a wheel is rotatably attached; an auxiliary leg portion attached to one of the two ends of the main leg portion that are opposite to each other in the longitudinal direction of the main leg portion and in contact with the installation surface; and a fall prevention member for preventing the auxiliary leg portion from falling off the one end, wherein the support column is located biased toward the one end and is provided protruding from the main leg portion.

[0068] In the above configuration, the length of the main leg on one end to which the auxiliary leg is attached is relatively smaller, thus reducing the possibility of users tripping over the main leg. Therefore, the above configuration improves the safety of the mobile stand that movably supports the display board. In addition, since a fall prevention member is provided to prevent the auxiliary leg from falling off from one end, it is possible to prevent the auxiliary leg from falling off the main leg.

[0069] In the mobile stand according to embodiment 6 of the present disclosure, in embodiment 5, the auxiliary leg portion includes a fixing portion into which one end is inserted and fitted with the end, and the fall prevention member may be a bolt that is screwed 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 tightening a bolt while the auxiliary leg is fitted to one end of the main leg.

[0071] In the mobile stand according to embodiment 7 of the present disclosure, in embodiment 6, 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 tightening a bolt while the auxiliary leg is fitted to one end of the main leg, thereby pressing the tip of the bolt against the circumferential surface of the main leg.

[0073] This disclosure is not limited to the embodiments described above, 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 this 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: Portable stand 4: Prop 6: Main leg 7: Caster 9,9A: Auxiliary legs 11: Retaining member 14: Grip bolt (anti-loosening component) 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: Mating hole 111: Protruding part (holding member) 112: Base (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 the mounting surface, The main leg portion has a support column that protrudes from it to support the display board, and a caster with wheels is rotatably attached to it, An auxiliary leg is attached to one of the two ends of the main leg that are opposite to each other in the longitudinal direction of the main leg, and is rotatable between a support position that abuts the mounting surface and a jumped-up position that is raised from the support position, A holding member that holds the auxiliary leg portion in the raised position, Equipped with, The support column is a movable stand that is positioned unevenly towards one end and protrudes from the main leg portion.

2. The movable stand according to claim 1, wherein the holding member includes a projection that protrudes from the main leg portion at one end of the support column and supports the auxiliary leg portion in the raised position.

3. There is a gap between the support column and the protruding portion, The movable stand according to claim 2, wherein a part of the auxiliary leg is inserted into the gap at the aforementioned raised position.

4. The holding member further includes a base portion fixed to the circumferential surface of the main leg portion, The aforementioned protruding portion is provided protruding from the base portion, as described in claim 2 or 3 for the mobile stand.

5. A mobile stand that supports a display board so that it can be moved relative to the mounting surface, The main leg portion has a support column that protrudes from it to support the display board, and a caster with wheels is rotatably attached to it, An auxiliary leg is attached to one end of the two ends of the main leg that are opposite to each other in the longitudinal direction of the main leg and contacts the mounting surface, A fall prevention member that prevents the auxiliary leg from falling off from one end, Equipped with, The support column is a movable stand that is positioned unevenly towards one end and protrudes from the main leg portion.

6. The auxiliary leg portion includes a fixing portion into which one end is inserted and which fits with the end, The movable stand according to claim 5, wherein the anti-detachment member is a bolt that is screwed into a screw hole formed in the fixing part.

7. The movable stand according to claim 6, wherein the tip of the bolt is pressed against the circumferential surface of the main leg through the screw hole.

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