Board device

Abstract

To solve a conventional problem that usability is not good when a seated person uses a chair alone or when the seated person and a standing person use the chair in cooperation.SOLUTION: In a board device A in which a board 1 for writing is supported by a support structure 2, the support structure 2 is provided with a support frame 21 for supporting the board 1 in a state where the board 1 is taken out forward and a front leg 2 and a rear leg 2 for supporting the support frame 2 on a floor surface F in a backwardly inclined posture, and the front leg 2 is formed of a pair of left and right legs arranged so that a separation distance is gradually increased forward, and the board 1 is positioned in front of a lower end 2a of the front leg 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a board device such as a whiteboard or blackboard used in an office or the like. [Background technology]

[0002] Various writing board devices equipped with writing boards are in widespread use, but conventional devices are designed primarily for users to use the board surface while standing.

[0003] For example, as shown in Patent Document 1 and other documents, a conventional board device is known in which a board is pivoted between a pair of upright supports on the left and right so that it can rotate back and forth, but these devices are basically designed to be used with the board in a vertical position.

[0004] For example, when a standing able-bodied person and a disabled person seated in a wheelchair use a board device to meet together, it is not uncommon for the board to be too high for the seated person, or for the able-bodied person working close to the seated person to have difficulty moving due to the presence of a support pole supporting the board.

[0005] This problem is not limited to when using a wheelchair, but also applies when a user uses a board device while seated in a normal chair, and there is a need for a board device that is suitable for use exclusively by a seated person, or for use jointly by a seated person and a standing person. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Public Practical Application Heisei 1-110644 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention aims to solve the above-mentioned problems by adopting a novel basic structure in which the board is supported in a forward-extending position on a support frame that is tilted backward. [Means for solving the problem]

[0008] The board device of the invention described in claim 1 is a writing board supported on a support structure, which comprises a support frame that supports the board in a forward-extending position, and front and rear legs that support the support frame on the floor in a backward-leaning position.The front legs are a pair of left and right legs arranged so that the distance between them gradually increases toward the front, and the board is supported on the support structure so that its lower edge is positioned forward of the lower ends of the front legs.

[0009] The board device according to the invention of claim 2 is based on the configuration of claim 1, and has a lower leg space formed below the board that allows a wheelchair to enter.

[0010] The board device of the invention described in claim 3 is based on the configuration described in claim 1, and the board is supported on the support frame via an arm, and the arm is positioned at a height higher than the lower edge of the board.

[0011] A board device according to the invention of claim 4 is based on the configuration of claim 1, and the board is made flat with chamfered corners.

[0012] The board device according to the invention described in claim 5 is based on the configuration described in claim 1, The support frame comprises a lower frame member supported by the front legs and the rear legs, a pair of left and right side frame members extending upward from both the left and right ends of the lower frame member, and an upper frame member connecting the upper ends of these side frame members, and the pair of front legs and the pair of side frame members are arranged in a straight line with their axes approximately aligned.

[0013] The board device of the invention described in claim 6 is based on the configuration described in claim 5, and has the front and rear legs equipped with casters, and the pair of side frame members are provided with handles for moving the entire device. [Effects of the Invention]

[0014] The present invention is a board device in which a board is supported in a forward-extending position on a backward-leaning support frame, and the front legs that support the support frame are spread out toward the front in an area behind the lower edge of the board.This configuration makes it possible to provide a board device that is suitable for use exclusively by a seated person or for use by both a seated person and a standing person. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view showing an embodiment of the present invention; [Figure 2] The same front view. [Figure 3] Same plan view. [Figure 4] FIG. [Figure 5] The same bottom view. [Figure 6] Rear view of the same. [Figure 7] FIG. 2 is an explanatory side view showing the state of use of the embodiment. [Figure 8] FIG. 2 is an explanatory front view showing the state of use of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0017] 1, the board device A according to this embodiment has a writing board 1 supported by a support structure 2. The support structure 2 includes a support frame 21 that supports the board 1 in a state where it is extended forward G, and front legs 22 and rear legs 23 that support the support frame 21 in a backward tilted position on an existing floor surface F. The front legs 22 are a pair of left and right legs that are arranged so that the distance L between them gradually increases toward the front G. The board 1 is supported by the support structure 2 so that its lower edge 1a is positioned further forward G than the lower ends 22a of both front legs 22.

[0018] The board 1 is supported by a support frame 21 via two types of arms 3 and 4, and a lower leg space X is formed below the board 1 so that a wheelchair W can enter.

[0019] Specifically, as shown in Figures 2 to 6, the board 1 comprises a flat board body 11 having chamfered portions 1b at the corners, and an attachment frame 12 fixed to the back surface of the board body 11.

[0020] 4, the board body 11 is made by disposing an Alpolic board 11b with a whiteboard sheet attached to the front surface of a core material 11a, and concealing the periphery of the core material 11a with an edge material 11c. The front surface of the Alpolic board 11b with the whiteboard sheet attached and the front end surface of the edge material 11c are formed to be approximately flush with each other, and the entire front surface of the board 1 is a continuous flat surface without any irregularities.

[0021] The mounting frame 12 is screwed to the core material 11a of the board main body 11 from the back side and has, for example, a rectangular shape with corners near the center of curvature of the chamfered portion 1b. As shown in Figures 1 and 4, the lower side portion 12a of the mounting frame 12 is connected to the support frame 21 via a lower arm 3, and the upper side portion 12b is connected to the support frame 21 via an upper arm 4. The arms 3 and 4 are both positioned at a height higher than the lower edge 1a of the board 1 so as not to be easily visible from the front side. In this embodiment, the arms 3 and 4 are made of, for example, metal pipe material and are rigidly connected to the mounting frame 12 of the board 1 and the support frame 21 of the support structure 2, respectively, by welding or the like.

[0022] The support frame 21 is made, for example, of metal pipe material, and comprises a lower frame member 211 supported by front legs 22 and rear legs 23, a pair of left and right side frame members 212 extending upward from both the left and right ends of the lower frame member 211, and an upper frame member 213 connecting the upper ends of these side frame members 212.

[0023] The lower frame material 211 is made of a metal pipe material with the largest outer diameter extending to the left and right, and the left and right front legs 22 are respectively joined by welding or the like to the downward surfaces at both left and right ends of this lower frame material 211, and the left and right side frame materials 212 are joined by welding or the like to the upward surfaces at both left and right ends.

[0024] The side frames 212 are made of, for example, metal pipe material, and are rigidly connected to the lower frame material 211 while being tilted backward at an angle corresponding to the backward tilting posture of the support frame 21. The upper frame material 213 is installed between the left and right side frame materials 212 near their upper ends, and as shown in Figure 1, this upper frame material 213, the left and right side frames 212, and the above-mentioned lower frame 211 form the support frame 21, which has a frame-like shape that is tilted backward.

[0025] The front legs 22 are made, for example, of straight metal pipes, and the left and right front legs 22 are fixed to the support frame 21 at symmetrical inclinations so that the distance L between them gradually increases forward G. In this embodiment, the pair of front legs 22 and the pair of side frame members 212 are arranged in a straight line with their axes generally aligned. That is, the left front leg 22 and the left side frame member 212 are fixed to the lower frame member 211 so that the axis p of the left front leg 22 and the axis r of the left side frame member 212 generally aligned, and the right front leg 22 and the right side frame member 212 are fixed to the lower frame member 211 so that the axis q of the right front leg 22 and the axis s of the right side frame member 212 generally aligned.

[0026] The rear legs 23 are made of, for example, straight metal pipe material, and the left and right rear legs 23, 23 extend rearward in parallel from the lower frame material 211.

[0027] The front legs 22 and rear legs 23 each have a caster t. Each caster t can be switched between a locked state in which movement is prohibited and an unlocked state in which movement is permitted, and can be switched between the locked state and the unlocked state by stepping on the operating pedal ta. The structure is conventional, so a description thereof will be omitted.

[0028] A pair of side frame members 212 of the support structure 2, which can be moved by the casters t, are provided with handles 214 that can be gripped when moving the entire structure.

[0029] Furthermore, a front cross member 221 is installed between the left and right front legs 22 near the upper ends thereof, and a rear cross member 231 is installed between the left and right rear legs 23 near the upper ends thereof, and a tray 5 is detachably disposed between these front cross member 221 and rear cross member 231. Since the tray 5 is disposed between the front legs 22 and the rear legs 23, it does not disrupt the front-to-rear weight balance of the support structure 2. Furthermore, since the tray 5 is disposed at the back of the lower leg space X, it can be easily disposed within reach of a seated user U or the like who has entered the lower leg space X. Therefore, there is no problem of extremely poor access compared to when the tray 5 is provided on the lower edge 1a of the board 1 or the like.

[0030] With a board device A configured in this manner, the board 1 is extended forward relative to the support frame 21 of the support structure 2 so that its lower edge 1a is positioned forward of the lower ends of both front legs 22, so that a lower leg space X with depth in both the front and rear directions can be easily formed below the board 1.

[0031] That is, in conventional boards pivotally attached to upright posts of a support frame, when the board is rotated and its lower edge is moved significantly forward, the board itself tends to lean backward excessively. In contrast, with the board device A of the present invention, by appropriately setting the amount of forward extension G of the lower and upper parts of the board 1, the board 1 can be positioned in a posture suitable for the seated person U. In addition, since the distance L between the left and right front legs 22 gradually increases toward the front, the lower leg space X formed between the front legs 22 widens toward the front G, and a wheelchair W or the like entering the lower leg space X can easily move left and right.

[0032] According to this configuration, the pair of front legs 22 are spread out downward and forward, so that a relatively wide lower leg space X can be secured under the board 1 even if the distance L between the front legs 22 is set to be smaller than the width of the board 1. In other words, a relatively large opening width for the lower leg space X can be secured without making the support structure 2 larger than the width of the board 1.

[0033] If the width dimension of the support structure 2 can be made relatively small while preventing the reduction of the lower limb space X, it will be easier for other people to stand up and get close to the user U seated in a wheelchair W, etc., and for example, collaborative work between disabled and able-bodied people can be promoted through this board device A.

[0034] Furthermore, because the support frame 21 that supports the board 1 when it is extended forward is tilted backward, it is easier to maintain a front-to-back weight balance compared to when the support frame 21 is upright. In other words, if the support frame 21 is tilted backward, it is easy to design a form that can prevent the board 1 from tipping forward even when it is extended forward, without having to lengthen the front legs 22 or provide weights on the rear legs 23, and it is possible to simplify the configuration and reduce the weight, etc.

[0035] Furthermore, in this embodiment, the board 1 is supported by the support frame 21 via the upper and lower arms 3, 4, so the board 1 can be placed in a desired backward tilted position by appropriately selecting the upper and lower arms 3, 4 at the design stage. In this embodiment, the arms 3, 4 are located at a height higher than the lower edge 1a of the board 1, so the arms 3, 4 are difficult to see from a user U sitting or standing in front of the board, resulting in a simple appearance.

[0036] Furthermore, when another person stands up next to a person seated in a wheelchair W to work together, the standing person is likely to touch the lower edge corners of the board 1 every time they move. In contrast, in this board device A, chamfered portions 1b are provided at the corners of the board 1, and this, combined with the fact that the width of the support structure 2 is smaller than the width of the board 1, makes it possible to prevent or suppress the inconvenience of a standing user touching the board 1 while moving and feeling uncomfortable.

[0037] Furthermore, the board 1 of this embodiment has a flat board body 11 with no tray attached and a flat, continuous front surface, so that a seated user U can conveniently rest their hands and elbows on the front of the board 1 while working.

[0038] Furthermore, in the board device A of this embodiment, the pair of front legs 22 and the pair of side frame members 212 are arranged in a straight line with their axes roughly aligned, resulting in a simple appearance and fully demonstrating functional beauty.

[0039] Furthermore, in this embodiment, casters t are provided on the front legs 22 and rear legs 23, so it can be moved to a desired position as needed. Moreover, handles 214 are provided on the side frame members 212 located on the sides of the support structure 2, so safety and smoothness can be ensured when moving the entire structure.

[0040] It should be noted that the present invention is not limited to the above-described embodiment, and the following modifications are also possible.

[0041] In the above embodiment, the board is extended forward relative to the support frame via two types of arms, but the members that support the board on the support frame are not limited to two types of arms (upper and lower) and can be modified in various ways. Furthermore, even when arms are used, they are not limited to fixed arms as in the illustrated example, and may be ones whose length, mounting position, etc. can be adjusted by the user.

[0042] The support frame and the front and rear legs are not necessarily made of metal pipes. Furthermore, the lower frame members and side frame members of the support structure, or the lower frame and the front and rear legs, are not necessarily rigidly connected by welding, but can also be connected in a disassemblable manner using screws or the like.

[0043] Furthermore, the shape of the front legs is not limited to that of the illustrated embodiment, but may be one that gradually spreads out in a curved shape toward the front, or one that spreads out gradually in stages.

[0044] Furthermore, the shape of the rear legs is not limited to that shown in the illustration, and the number of rear legs is not limited to two. For example, the number of rear legs may be one or three or more.

[0045] Furthermore, in the above embodiment, the case where casters are provided on the front legs and rear legs has been described, but it goes without saying that the present invention is not necessarily limited to this.

[0046] In addition, various modifications are possible within the scope of the present invention. [Explanation of symbols]

[0047] A...Board device F…Floor surface W...wheelchair X…Lower limb space L…Separation distance 1. Board 1a…lower edge 1b… Chamfered part 2...Support structure 21...Support frame 211...Lower frame material 212...Side frame material 213...Upper frame material 214...Handle 22...front leg 22a…lower end 23...hind legs 3...Lower arm 4...Upper arm 5...Tray t...caster

Claims

1. A writing board supported by a support structure, The support structure includes a support frame that supports the board in a state where it is extended forward, and front and rear legs that support the support frame on the floor surface in a rearward tilted position, The front legs are a pair of left and right legs arranged so that the distance between them gradually increases toward the front, and the board is supported on the support structure so that its lower edge is positioned forward of the lower ends of both front legs.

2. 2. The board apparatus according to claim 1, wherein a lower leg space is formed below the board so that a wheelchair can enter.

3. the board is supported by the support frame via an arm; 2. The board device according to claim 1, wherein the arm is disposed at a height higher than the lower edge of the board.

4. 2. The board device according to claim 1, wherein the board is a flat board having chamfered corners.

5. the support frame includes a lower frame member supported by the front legs and the rear legs, a pair of left and right side frame members extending upward from both left and right ends of the lower frame member, and an upper frame member connecting the upper ends of the side frame members, 2. The board device according to claim 1, wherein the pair of front legs and the pair of side frame members are arranged in a straight line with their axes substantially aligned.

6. 6. The board apparatus according to claim 5, wherein the front and rear legs are provided with casters, and the pair of side frame members are provided with handles for moving the entire board apparatus.

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