Hanger rail for constructing electronic blackboard system

Abstract

To provide a hanger rail for constructing an electronic blackboard system which can be used for a long period of time by reducing the possibility of wear and deformation even when continuously receiving a load due to the slide movement of a heavy electronic blackboard for a long period of time.SOLUTION: A hanger rail (1) in which hanger rails (1) are disposed above and below an existing blackboard (11) and an electronic blackboard (12) can be slid right and left on the front side of the existing blackboard (11) by engaging a hanger wheel (16), which is attached to the upper end and the lower end of a support frame (14) for attaching and supporting the electronic blackboard (14), with the hanger rail (1), wherein the hanger rail (1) is an aluminum extrusion molded product, has a C-shaped cross-section in which an opening (2) for moving a hanger wheel support plate is formed on one side surface or the bottom surface, and at least the inner surface thereof, on which rolling pressure of the hanger wheel (16) is applied, is reinforced.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hanger rail for constructing an electronic whiteboard system, and more specifically, to a hanger rail for constructing an electronic whiteboard system that enables an electronic whiteboard system to be constructed at a relatively low cost and can contribute to the realization of the GIGA School Initiative announced in 2019. [Background technology]

[0002] Following the announcement of the GIGA School Initiative Implementation Package in 2019, schools have established in-school LANs and are rapidly adopting and utilizing ICT in schools. The core of the GIGA School Initiative is the creation of an educational ICT environment that is personalized for each student and fosters their creativity. Specifically, each student will be given a learning device (tablet), and lessons will be conducted using electronic whiteboards installed in each classroom.

[0003] However, each classroom is equipped with a large blackboard, and lessons in schools have long been based on writing on the blackboard, a teaching method familiar to both students and teachers, and one that is difficult to abandon even with the advancement of ICT education. However, there are limitations in terms of budget and installation space to provide electronic blackboards in addition to traditional blackboards in each classroom. In particular, it is extremely difficult to introduce large electronic blackboards to replace blackboards.

[0004] Therefore, it has been considered to use an existing blackboard or whiteboard, place a projector above the board, and project images onto the board, turning the board into an electronic blackboard (making it interactive).However, since the projection range is narrow in this case, it has been considered to make the projector movable left and right so that the projection position can be changed.

[0005] However, because the image projected by a projector is less clear than that of an electronic whiteboard, many types of electronic whiteboards have been released, in which the electronic whiteboard is installed in front of the blackboard and can slide left and right so as not to interfere with writing on the blackboard. In such cases, hanger rails are placed above and below the existing blackboard, and hoists attached to the upper and lower ends of the support frame that supports and mounts the electronic whiteboard engage with the hanger rails (see JP 2015-16696 A, JP 2012-56270 A, JP 2011-116081 A). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-16696 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-56270 [Patent Document 3] Japanese Patent Application Laid-Open No. 2011-116081 Summary of the Invention [Problem to be solved by the invention]

[0007] In the case of the conventional type of electronic whiteboard that allows the board to slide in front of the board, the sliding mechanism is achieved by engaging hangers attached to the upper and lower ends of the board's support frame with hanger rails. However, because the hanger rails are made of general-purpose aluminum, the inner bottom surface of the hanger rail, which bears the weight of the fairly heavy electronic whiteboard via the hanger, is subject to wear and deformation due to the constant rolling pressure of the hanger, which can cause the board to slide impededly or change its tilt. However, no particular consideration was given to this issue in conventional hanger rails. In other words, such problems were not anticipated, and they are now occurring, leading to the need for solutions.

[0008] The present invention has been made in view of the above circumstances, and aims to provide a hanger rail for constructing an electronic whiteboard system that is unlikely to wear or deform even when subjected to a load caused by the sliding movement of a heavy electronic whiteboard for a long period of time, and that can be used for a long period of time. [Means for solving the problem]

[0009] The invention according to claim 1 for solving the above problem is an electronic whiteboard system in which a pair of hanger rails are arranged above and below an existing blackboard, and hoists attached to the upper and lower ends of a support frame that mounts and supports an electronic whiteboard are engaged with the pair of hanger rails above and below, thereby making the electronic whiteboard slidable left and right in front of the blackboard. The hanger rail is an aluminum extrusion molded product with a C-shaped cross section with an opening on one side or bottom that extends in the length direction for the hoist support plate to move, and at least the inner surface of the hanger rail that is subjected to the rolling pressure of the hoist is reinforced. This hanger rail is for constructing an electronic whiteboard system.

[0010] In one embodiment, the surface on which the rolling pressure of the hoist is applied is strengthened by extrusion molding using a billet of an aluminum alloy having a strength equivalent to A6063-T6, which belongs to the 6000 series, a high-strength aluminum alloy.

[0011] In one embodiment, the surface of the hoist that receives the rolling pressure is formed thicker than other surfaces, thereby strengthening the surface. In another embodiment, the surface of the hoist that receives the rolling pressure is formed with an uneven portion, thereby strengthening the surface of the hoist that receives the rolling pressure.

[0012] In one embodiment, a strip-shaped metal material is fixed to the surface of the hoist to which the rolling pressure is applied, thereby strengthening the surface to which the rolling pressure is applied.

[0013] The invention of claim 6, which solves the above problem, is a hanger rail for constructing an electronic whiteboard system, which is formed by integrally extruding multiple rows of hanger rails as described in any one of claims 1 to 5, of which one pair of upper and lower hanger rails is for moving an electronic whiteboard, and the other pair of upper and lower hanger rails is for moving a lightweight whiteboard.

[0014] In one embodiment, a cable receiver extending along the upper side of the hanger rail is formed by extrusion molding integrally with the upper and lower rows of hanger rails. [Effects of the Invention]

[0015] The present invention is as described above, and according to the hanger rail of the present invention, at least the surface on its inner surface that is subjected to the rolling pressure of the hoist is reinforced, so that even if it continues to bear the load caused by the sliding movement of a heavy electronic whiteboard for a long period of time, there is little risk of wear and deformation, and it has the effect of enabling long-term use. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a front view of an electronic whiteboard system using a hanger rail for constructing an electronic whiteboard system according to the present invention. [Figure 2] 1 is an enlarged side view of an electronic whiteboard system using a hanger rail for constructing an electronic whiteboard system according to the present invention. [Figure 3] 1 is a vertical cross-sectional view showing an example of the configuration and installation state of a hanger rail for constructing an electronic whiteboard system according to the present invention. [Figure 4] 10 is a vertical cross-sectional view showing another example of the configuration and installation state of the hanger rail for constructing an electronic whiteboard system according to the present invention. FIG. [Figure 5] 10 is a vertical cross-sectional view showing yet another configuration example and an installation state of a hanger rail for constructing an electronic whiteboard system according to the present invention. FIG. [Figure 6] 10 is a vertical cross-sectional view showing yet another configuration example and an installation state of a hanger rail for constructing an electronic whiteboard system according to the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the hanger rail for constructing an electronic whiteboard system according to the present invention will be described with reference to the accompanying drawings. The hanger rail 1 for constructing an electronic whiteboard system according to the present invention is mainly attached in pairs (two pairs in the example shown in FIGS. 1 and 2) to the upper and lower sides of an existing blackboard 11 installed on a wall surface 10 of a school classroom, and by engaging hoisting wheels 16 attached to the upper and lower ends of support frames 14, 15 that mount and support an electronic whiteboard 12 and a lightweight whiteboard 13, the electronic whiteboard 12 and the lightweight whiteboard 13 can slide left and right in front of the existing blackboard 11. The hoisting wheels 16 may be double-wheeled or single-wheeled (the example shown is a single-wheeled).

[0018] This hanger rail 1 is an aluminum extrusion molded product, and has an angular C-shaped cross section (see Figs. 3 to 6) with openings 2 formed on one side or bottom surface that extend in the longitudinal direction and allow movement of the hoist support members 14a, 15a of the support frames 14, 15, and is characterized in that at least the surface of its inner surface that receives the rolling pressure of the hoist 16 is reinforced. Generally, the surface that receives the rolling pressure of the hoist 16 is the bottom surface 3.

[0019] Possible methods for strengthening the bottom surface 3 include strengthening the entire hanger rail 1 and strengthening only the bottom surface 3 more than other portions. In the former method, it is preferable to use A6063 alloy, which has excellent strength, corrosion resistance, and extrudability, as the raw material billet. A6063 alloy is classified as a 6000 series alloy, and is an alloy made by adding mainly magnesium and silicon to aluminum. Although it is inferior in strength to A6061 alloy, it is characterized by excellent extrudability. As A6063 alloy billets, A6063-T5 alloy billets are mainly used, but in the present invention, A6063-T6 alloy billets that have been subjected to T6 treatment to increase their strength are used.

[0020] T5 treatment is an artificial aging treatment performed after cooling from the high-temperature manufacturing process, while T6 treatment is an artificial aging treatment performed after solution treatment. It can be said to be a combination of T4 treatment, which creates a supersaturated solid solution, and T5 treatment, and is expected to significantly improve strength. Although it is an A6063-T5 alloy, Sankyo Aluminum's SSHO alloy, which has strength equivalent to A6063-T6, can also be used. This SSHO alloy has the following properties. Tensile strength: 255N / mm 2 ·Yield strength: 225N / mm 2 Elongation: 13%

[0021] In addition, one method of strengthening only the bottom surface 3, which is subjected to the rolling pressure of the hoist 16, is to form the bottom surface 3 thicker than the other surfaces (see Figure 3). For example, the thickness of the bottom surface 3 is set to 1.5 to 2 times the thickness of the other parts.

[0022] The bottom surface 3 can also be strengthened by forming uneven portions on the bottom surface 3. For this purpose, for example, one or several ribs 4 can be provided (see FIG. 4). Alternatively, a rail 5 with a semicircular cross section can be provided on the bottom surface 3, and a pulley-shaped or sheave-shaped hoist 16 can be used (see FIG. 5).

[0023] Furthermore, it is also possible to strengthen the bottom surface 3 by attaching a strip-shaped metal material 6 made of stainless steel or the like (see FIG. 6).

[0024] Although the clothes rails 1 may be extruded one by one, as in the example shown, multiple clothes rails 1 can be extruded as a single unit. In this case, the effort required for extrusion molding and for attaching the clothes rails to the wall surface 10 is reduced. In the example shown, a cable receiver 7 extending along the upper side of the clothes rails 1 is also extruded as a single unit with the multiple rows of clothes rails 1. This cable receiver 7 stores the wiring 8 of the electronic whiteboard 12, projector 17, etc., and serves to prevent it from being exposed and loose, which would cause an unsightly appearance.

[0025] 1 and 2, a projector 17 for projecting onto the lightweight whiteboard 13 is attached to the top of the support frame 15, and mounting tables 18 and 19 for placing a personal computer, tablet, etc. on the middle are installed as needed. Mounting tables are also installed on the support frame 14 as needed. [Industrial Applicability]

[0026] As described above, the present invention has a hanger rail according to the present invention, in which at least the surface on the inner side where the rolling pressure of the hoist is applied is reinforced, so that even if the rail is subjected to the load caused by the sliding movement of a heavy electronic whiteboard for a long period of time, there is little risk of wear and deformation, and it has the effect of enabling long-term use, and therefore has great industrial applicability. [Explanation of symbols]

[0027] 1 clothes rail 2 aperture 3 Bottom 4. Ribs 5 Rail 6. Metal strips 7 Cable holder 8 Wiring 11 Existing blackboard 12. Electronic whiteboard 13 Lightweight Whiteboard 14,15 Support frame 16 Hanging wheel 17. Projector 18,19 Mounting table

Claims

1. A hanger rail in an electronic whiteboard system in which a pair of hanger rails are arranged above and below an existing blackboard, and hoists attached to the upper and lower ends of a support frame that mounts and supports an electronic whiteboard are engaged with the pair of hanger rails above and below, thereby making it possible for the electronic whiteboard to slide left and right in front of the blackboard. The hanger rail is an aluminum extrusion molded product, and has a cross-sectional C-shape with an opening extending in the length direction for the hoist support plate to move on one side or bottom, and at least the inner surface of the hanger rail where the rolling pressure of the hoist is applied is reinforced.

2. The hanger rail for constructing an electronic whiteboard system according to claim 1, wherein the surface on which the rolling pressure of the hoist is applied is strengthened by extrusion molding using an aluminum alloy billet having a strength equivalent to A6063-T6, which belongs to the 6000 series, a high-strength aluminum alloy.

3. 2. The hanger rail for constructing an electronic whiteboard system according to claim 1, wherein the surface on which the rolling pressure of the hoisting wheel is applied is formed thicker than other surfaces, thereby strengthening the surface on which the rolling pressure of the hoisting wheel is applied.

4. 2. The hanger rail for constructing an electronic whiteboard system according to claim 1, wherein the surface on which the rolling pressure of the hoisting wheel is applied is strengthened by forming an uneven portion on the surface on which the rolling pressure of the hoisting wheel is applied.

5. 2. The hanger rail for constructing an electronic whiteboard system according to claim 1, wherein a strip-shaped metal material is fixed to the surface of the hoist to which the rolling pressure of the hoist is applied, thereby strengthening the surface to which the rolling pressure of the hoist is applied.

6. A hanger rail for constructing an electronic whiteboard system, wherein the hanger rails according to any one of claims 1 to 5 are extruded integrally in a plurality of rows, one pair of upper and lower hanger rails being for moving an electronic whiteboard, and another pair of upper and lower hanger rails being for moving a lightweight whiteboard.

7. 7. The hanger rail for constructing an electronic whiteboard system according to claim 6, wherein the cable receivers extending along the upper side of the hanger rail are formed by extrusion molding integrally with the upper and lower rows of hanger rails.

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