Display case

Abstract

The present invention provides a display case in which the front is flat when closed and the entire surface of the second panel can be opened when open. [Solution] In the display case 10, the second panel 2 has a second roller that rolls along a second rail, and is displaced from a closed state to a movable state by displacing in the direction opposite to the display space S, and is displaced from the movable state to an open state in which it overlaps with the first panel 1 when viewed from the front by sliding in the width direction on the side of the first panel 1, and the second rail includes a second main rail located at the top and bottom of the second panel 2 and a second sub-rail located at the top and bottom of the first panel 1, and the second main rail is displaced together with the second panel 2 when the second panel 2 is displaced from a closed state to a movable state and communicates with the second sub-rail in the movable state of the second panel 2.

Description

Technical Field

[0001] This disclosure relates to a display case that can be opened and closed by sliding a door body.

Background Art

[0002] Conventionally, there is known a display case that can be opened and closed by sliding a door panel, which is a door body, in the left - right direction while being moved in the front - rear direction (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the display case described in Patent Document 1, a plurality of rollers are provided on a support frame that can be displaced in the thickness direction of the door body, and the door body is supported by these rollers so as to be displaceable in the horizontal direction. In such a configuration, when the door body is opened, the entire surface cannot be opened. Therefore, the purpose of this disclosure is to solve the above - mentioned problems.

Means for Solving the Problems

[0005] A display case according to a first aspect of the present invention comprises: a first panel that is arranged along the display space and is transparent; a second panel that is arranged along the display space adjacent to either one of the width directions of the first panel and is transparent and is displaceable between a closed state and an open state; a second rail that extends in the width direction of the first panel and the second panel and supports the second panel; a second panel displacement part that allows the second panel to be displaced in the thickness direction; and a closing holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet, wherein the second panel has a second roller that rolls along the second rail, and in the closed state the second panel is energized. The second panel is attracted to the aforementioned closure holder, and when the closure holder is energized, the suction of the closure holder is released, causing the second panel to move from a closed state to a movable state by displacing in the direction opposite to the exhibition space, and from the movable state, it slides in the width direction toward the first panel to move into an open state in which it overlaps with the first panel when viewed from the front. The second rail includes a second main rail located above and / or below the second panel, and a second sub-rail located above and / or below the first panel, and the second main rail displaces together with the second panel when the second panel moves from a closed state to a movable state, and communicates with the second sub-rail in the movable state of the second panel.

[0006] According to the display case relating to the first point of view described above, the stability of the second panel can be ensured when the case is closed, the front surface is flat when the case is closed, and the entire surface of the second panel can be opened when the case is open.

[0007] Furthermore, the display case relating to the second viewpoint is the same as the display case relating to the first viewpoint, and includes an open holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet. In the movable state, the second panel is attracted to the open holder which is not energized. When the open holder is energized, the second panel is released from its attraction to the open holder and displaced from the movable state towards the display space, thereby displacing it into a closed state.

[0008] According to the display case relating to the second point of view described above, the stability of the second panel can be ensured when it is in the open state.

[0009] Furthermore, the display case relating to the third viewpoint is the display case relating to the second viewpoint described above, wherein the second panel is provided with a part to be attached that straddles the open holder, and in the movable state, the part to be attached is attached to the open holder.

[0010] According to the display case relating to the third point of view described above, the stability of the second panel can be increased when it is in the open state.

[0011] Furthermore, the display case relating to the fourth viewpoint is the display case relating to the third viewpoint described above, wherein when the second panel is closed, the side of the second sub-rail opposite to the display space is covered by the second cover member.

[0012] According to the display case relating to the fourth point of view described above, the aesthetic appeal can be enhanced when the second panel is in a closed state.

[0013] Furthermore, the display case relating to the fifth viewpoint is a display case relating to any one of the first viewpoint to the fourth viewpoint, wherein the first panel is displaceable between a closed state and an open state, and comprises a first rail extending in the width direction of the first panel and the second panel and supporting the first panel, and a first panel displacement part that makes the first panel displaceable in the thickness direction, and a second closing holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet, the first panel has a first roller that rolls along the first rail, the first panel in the closed state is attracted to the second closing holder which is not energized, and the first panel is the By energizing the second closure holder, the suction of the second closure holder is released, and it is displaced from a closed state to a movable state by displacing in the direction opposite to the exhibition space, and from the movable state, it is displaced by sliding in the width direction toward the second panel, thereby displacing it to an open state in which it overlaps with the second panel when viewed from the front, and the first rail includes a first main rail located above and / or below the first panel and a first sub-rail located above and / or below the second panel, and the first main rail is displaced together with the first panel when the first panel is displaced from a closed state to a movable state, and communicates with the first sub-rail when the first panel is in a movable state.

[0014] According to the display case relating to the fifth point of view described above, the stability of the first panel can be ensured when the display is closed, the front surface is flat when the display is closed, and the entire surface of the first panel can be opened when the display is open.

[0015] Furthermore, the display case relating to the sixth viewpoint is the display case relating to the fifth viewpoint described above, and includes a second open holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet. In the movable state, the first panel is attracted to the second open holder which is not energized. When the second open holder is energized, the attraction of the first panel to the second open holder is released, and the first panel is displaced from the movable state towards the display space, thereby displacing it into a closed state.

[0016] According to the display case according to the sixth aspect, the stability of the first panel can be ensured in the open state.

[0017] In addition, the display case according to the seventh aspect is the display case according to the sixth aspect, in the second panel, the second roller and the first sub-rail are provided at the same height position, and the second roller is arranged on the display space side of the first sub-rail. In the first panel, the first roller and the second sub-rail are provided at the same height position, and the first roller is arranged on the display space side of the second sub-rail.

[0018] According to the display case according to the seventh aspect, when the first panel or the second panel is opened, the first sub-rail and the second sub-rail can be opened in a superimposed state.

[0019] In addition, the display case according to the eighth aspect is the display case according to the seventh aspect, when the first panel is in the closed state, the side of the first sub-rail opposite to the display space is covered by the first cover member.

[0020] According to the display case according to the eighth aspect, the design property when the first panel is in the closed state can be enhanced.

[0021] Note that the contents of the second aspect to the eighth aspect are not necessarily essential configurations in the display case according to the present invention, and can be appropriately omitted / changed.

Effects of the Invention

[0022] According to the display case according to the present invention as described above, it becomes possible to open the entire surface of the second panel in the movable state.

Brief Description of the Drawings

[0023] [Figure 1] The front view which shows the display case which concerns on one Embodiment. [Figure 2] The front view which shows the display case when the second panel is in the open state. [Figure 3] Cross-sectional view taken along line A-A in FIG. 1. [Figure 4] (a) to (c) are respectively plan views when the second panel is in a closed state, a movable state, and an open state. [Figure 5] Cross-sectional view taken along line B-B in FIG. 2. [Figure 6] Cross-sectional view taken along line C-C in FIG. 2. [Figure 7] (a) to (c) are respectively plan views when the first panel is in a closed state, a movable state, and an open state. [Figure 8] (a) and (b) are plan views when the second panel is in a closed state and a movable state in the display case according to the modified example. [Figure 9] Enlarged plan view of the open holder in the closed state of the second panel. [Figure 10] Longitudinal sectional view in the closed state of the second panel. [Figure 11] Enlarged plan view of the open holder in the movable state of the second panel. [Figure 12] Longitudinal sectional view in the movable state of the second panel. [Figure 13] Longitudinal sectional view in the state where the first sub-rail is covered with the first cover member.

Mode for Carrying Out the Invention

[0024] Hereinafter, the display case 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7. The display case 10 is a device for accommodating and displaying an exhibit inside, for example, in an art museum or a museum.

[0025] In the present embodiment, the right side in FIGS. 1 and 2 will be described as the right side of the display case 10, and similarly, the left side will be described as the left side of the display case 10. Further, the left-right direction in the display case 10 will be described as the width direction of the first panel 1 and the second panel 2 described later. Further, the front side of the paper surface in FIGS. 1 and 2 will be described as the front of the display case 10, and similarly, the depth side of the paper surface will be described as the rear of the display case 10.

[0026] As shown in Figures 1 and 2, the display case 10 according to this embodiment has a first panel 1 and a second panel 2 adjacent to the right of the first panel 1. Other panels 3 and 3 are provided on the opposite side of the first panel 1 from the second panel 2, and on the opposite side of the second panel 2 from the first panel 1. An exhibition space S is formed behind the first panel 1, the second panel 2, and the other panels 3 and 3. In other words, the first panel 1, the second panel 2, and the other panels 3 and 3 are arranged along the exhibition space S.

[0027] In the display case 10 according to this embodiment, the first panel 1, the second panel 2, and the other panels 3, 3 are each similarly constructed to hold translucent glass plates. This allows visitors to view the exhibits housed in the display space S from the front outside of the display case 10.

[0028] As shown in Figures 1 to 3, the lower end of the display case 10 is supported by a plurality of leg members 31, 31, ... that are in contact with the floor surface F. The leg members 31 are assembled to the support frame 33 via leg frames 32. A plate-shaped display stand 34 is provided on the upper surface of the support frame 33, and the space above the display stand 34 is configured as the display space S.

[0029] A lower base plate 35 is fixed to the front surfaces of the leg frame 32 and the support frame 33. The front surface of the lower base plate 35 is covered by a lower cover member 36. An upper base plate 37 is supported above the lower base plate 35 by a support member (not shown). The front surface of the upper base plate 37 is covered by an upper cover member 38.

[0030] As shown in Figure 3, at the rear of the second panel 2, the upper bush 42a and the upper slide shaft 42b are assembled to the rear of the upper base plate 37 via the upper fixing plate 40. The upper slide shaft 42b is slidable in the front-rear direction, passing through the upper bush 42a, the upper fixing plate 40, and the upper base plate 37.

[0031] A second upper rail member 26 extending in the left-right direction is fixed to the front end of the upper slide shaft 42b. A groove-shaped second upper rail 26a opening to the front is formed on the second upper rail member 26. The second upper rail 26a functions as a second main rail according to the present invention.

[0032] A second upper open holder 41, which is a permanent electromagnetic holder, is provided on the outside of the upper bush 42a. The second upper open holder 41 is one embodiment of the "open holder" according to the present invention. Also, a second upper closed holder 44, which is also a permanent electromagnetic holder, is provided on the front surface of the upper base plate 37. The second upper closed holder 44 is one embodiment of the "closed holder" according to the present invention. The second upper open holder 41 and the second upper closed holder 44 (and the same applies to other permanent electromagnetic holders described below) are constructed by combining a permanent magnet and an electromagnet. As a result, each holder 41 and 44 can generate a magnetic field in the opposite direction to that of the permanent magnet by energizing the electromagnet, thereby canceling out the attractive force of the permanent magnet. The energization / de-energization of holders 41 and 44 is controlled by a control unit (not shown).

[0033] In this embodiment, a second upper open plate 43, which is a steel plate, is fixed to the rear end of the upper slide shaft 42b. The second upper open holder 41 is configured to attract the second upper open plate 43 by a permanent magnet when not energized, and not to attract the second upper open plate 43 when energized.

[0034] Furthermore, as shown in Figure 3, the lower bushing 47a and the lower slide shaft 47b are assembled to the rear of the lower base plate 35 via the lower fixing plate 45. The lower slide shaft 47b is designed to slide in the front-rear direction, passing through the lower bushing 47a, the lower fixing plate 45, and the lower base plate 35.

[0035] A second lower rail member 27 extending in the left-right direction is fixed to the front end of the lower slide shaft 47b. A groove-shaped second lower rail 27a opening to the front is formed on the second lower rail member 27. The second lower rail 27a functions as a second main rail according to the present invention.

[0036] A second lower open holder 46, which is a permanent electromagnetic holder, is provided on the outer rear part of the lower bush 47a. The second lower open holder 46 is one embodiment of the "open holder" according to the present invention. Also, a second lower closed holder 49, which is also a permanent electromagnetic holder, is provided on the front surface of the lower base plate 35. The second lower closed holder 49 is one embodiment of the "closed holder" according to the present invention.

[0037] In this embodiment, a second lower open plate 48, which is a steel plate, is fixed to the rear end of the lower slide shaft 47b. The second lower open holder 46 is configured to attract the second lower open plate 48 by a permanent magnet when not energized, and not to attract the second lower open plate 48 when energized.

[0038] As shown in Figure 3, the second panel 2 is supported by the second upper rail member 26 and the second lower rail member 27. Specifically, the second panel 2 is constructed by supporting a transparent second glass plate 23 between the second upper frame 21 and the second lower frame 22. When the second panel 2 is closed, a sealing member P is interposed between the second glass plate 23 and the lower base plate 35 and the upper base plate 37.

[0039] The second upper frame 21 has a groove-shaped second upper groove 21a that opens to the front. The second lower frame 22 also has a groove-shaped second lower groove 22a that opens to the front. The second upper groove 21a and the second lower groove 22a function as the first sub-rail according to the present invention. In this embodiment, the first sub-rail and the first main rail, which will be described later, are collectively referred to as the "first rail" on which the first rollers (first upper roller 14 and first lower roller 15), which will be described later, roll.

[0040] An upper support piece 21b extending downward is formed at the rear of the second upper frame 21, and a second upper closing plate 28, which is a steel plate, is fixed to the rear surface of the upper support piece 21b. The second upper closing holder 44 is configured to attract the second upper closing plate 28 by a permanent magnet when the second panel 2 is closed and not energized, but not to attract the second upper closing plate 28 when energized.

[0041] Furthermore, a lower support piece 22b extending upward is formed at the rear of the second lower frame 22, and a second lower closing plate 29, which is a steel plate, is fixed to the rear surface of the lower support piece 22b. The second lower closing holder 49 is configured to attract the second lower closing plate 29 by a permanent magnet when the second panel 2 is closed and not energized, and not to attract the second lower closing plate 29 when energized.

[0042] Three second upper rollers 24 extending to the rear are provided on the rear surface of the second upper groove 21a in the second upper frame 21 (see Figure 1). The second upper rollers 24 are inserted into the interior of the second upper rail member 26 so as to be able to roll the second upper rail 26a. That is, the second upper groove 21a of the second upper frame 21 and the second upper rail 26a of the second upper rail member 26 are arranged to overlap in the front-rear direction at the same height.

[0043] Furthermore, three second lower rollers 25 extending to the rear are provided on the rear surface of the second lower groove 22a in the second lower frame 22 (see Figure 1). The second lower rollers 25 are inserted into the interior of the second lower rail member 27 so that the second lower rail 27a can roll. That is, the second lower groove 22a of the second lower frame 22 and the second lower rail 27a of the second lower rail member 27 are arranged to overlap in the front-rear direction at the same height.

[0044] As described above, in the display case 10 according to this embodiment, the second upper frame 21 provided at the upper end of the second panel 2 is assembled to the upper base plate 37 via the second upper rail member 26, the upper slide shaft 42b, the upper bush 42a, and the upper fixing plate 40. The second lower frame 22 provided at the lower end of the second panel 2 is assembled to the lower base plate 35 via the second lower rail member 27, the lower slide shaft 47b, the lower bush 47a, and the lower fixing plate 45.

[0045] In the above configuration, the upper slide shaft 42b and the lower slide shaft 47b slide in the front-rear direction, allowing the second panel 2 to be displaced in the thickness direction. Thus, the upper bush 42a and the upper slide shaft 42b, and the lower bush 47a and the lower slide shaft 47b function as second panel displacement parts that allow the second panel 2 to be displaced in the thickness direction.

[0046] Furthermore, as shown in Figure 6, the assembly configuration of the first panel 1 is substantially the same as that of the second panel 2. That is, at the rear of the first panel 1, the upper bush 52a and the upper slide shaft 52b are assembled to the rear of the upper base plate 37 via the upper fixing plate 50. The upper slide shaft 52b is made slidable in the front-rear direction, passing through the upper bush 52a, the upper fixing plate 50, and the upper base plate 37.

[0047] A first upper rail member 16 extending in the left-right direction is fixed to the front end of the upper slide shaft 52b. A groove-shaped first upper rail 16a opening to the front is formed on the first upper rail member 16. The first upper rail 16a functions as the first main rail according to the present invention.

[0048] A first upper open holder 51, which is a permanent electromagnetic holder, is provided on the outside of the upper bush 52a. The first upper open holder 51 is one embodiment of the "second open holder" according to the present invention. Also, a first upper closed holder 54, which is also a permanent electromagnetic holder, is provided on the front surface of the upper base plate 37. The first upper closed holder 54 is one embodiment of the "second closed holder" according to the present invention.

[0049] In this embodiment, a first upper open plate 53, which is a steel plate, is fixed to the rear end of the upper slide shaft 52b. The first upper open holder 51 is configured to attract the first upper open plate 53 by a permanent magnet when not energized, and not to attract the first upper open plate 53 when energized.

[0050] Furthermore, as shown in Figure 6, the lower bushing 57a and the lower slide shaft 57b are assembled to the rear of the lower base plate 35 via the lower fixing plate 55. The lower slide shaft 57b is designed to slide in the front-rear direction, passing through the lower bushing 57a, the lower fixing plate 55, and the lower base plate 35.

[0051] A first lower rail member 17 extending in the left-right direction is fixed to the front end of the lower slide shaft 57b. A groove-shaped first lower rail 17a opening to the front is formed on the first lower rail member 17. The first lower rail 17a functions as the first main rail according to the present invention.

[0052] A first lower open holder 56, which is a permanent electromagnetic holder, is provided on the outer rear part of the lower bush 57a. The first lower open holder 56 is one embodiment of the "second open holder" according to the present invention. Also, a first lower closed holder 59, which is also a permanent electromagnetic holder, is provided on the front surface of the lower base plate 35. The first lower closed holder 59 is one embodiment of the "second closed holder" according to the present invention.

[0053] In this embodiment, a first lower open plate 58, which is a steel plate, is fixed to the rear end of the lower slide shaft 57b. The first lower open holder 56 is configured to attract the first lower open plate 58 by a permanent magnet when not energized, and not to attract the first lower open plate 58 when energized.

[0054] As shown in Figure 6, the first panel 1 is supported by the first upper rail member 16 and the first lower rail member 17. Specifically, the first panel 1 is constructed by supporting a transparent first glass plate 13 between the first upper frame 11 and the first lower frame 12. When the first panel 1 is closed, a sealing member P is interposed between the first glass plate 13 and the lower base plate 35 and the upper base plate 37.

[0055] The first upper frame 11 has a groove-shaped first upper groove 11a that opens to the front. The first lower frame 12 also has a groove-shaped first lower groove 12a that opens to the front. The first upper groove 11a and the first lower groove 12a function as a second sub-rail according to the present invention. In this embodiment, the second sub-rail and the second main rail described above are collectively referred to as the "second rail" on which the second rollers (second upper roller 24 and second lower roller 25) described above roll.

[0056] An upper support piece 11b extending downward is formed at the rear of the first upper frame 11, and a first upper closing plate 18, which is a steel plate, is fixed to the rear surface of the upper support piece 11b. The first upper closing holder 54 is configured to attract the first upper closing plate 18 by a permanent magnet when the first panel 1 is closed and not energized, but not to attract the first upper closing plate 18 when energized.

[0057] Furthermore, a lower support piece 12b extending upward is formed at the rear of the first lower frame 12, and a first lower closing plate 19, which is a steel plate, is fixed to the rear surface of the lower support piece 12b. The first lower closing holder 59 is configured to attract the first lower closing plate 19 by a permanent magnet when the first panel 1 is closed and not energized, and not to attract the first lower closing plate 19 when energized.

[0058] Three first upper rollers 14 extending to the rear are provided on the rear surface of the first upper groove 11a in the first upper frame 11 (see Figure 1). The first upper rollers 14 are inserted into the first upper rail member 16 so as to be able to roll along the first upper rail 16a. That is, the first upper groove 11a of the first upper frame 11 and the first upper rail 16a of the first upper rail member 16 are arranged to overlap in the front-rear direction at the same height.

[0059] Furthermore, three first lower rollers 15 extending to the rear are provided on the rear surface of the first lower groove 12a in the first lower frame 12 (see Figure 1). The first lower rollers 15 are inserted into the first lower rail member 17 so as to be able to roll along the first lower rail 17a. That is, the first lower groove 12a of the first lower frame 12 and the first lower rail 17a of the first lower rail member 17 are arranged to overlap in the front-rear direction at the same height.

[0060] As described above, in the display case 10 according to this embodiment, the first upper frame 11 provided at the upper end of the first panel 1 is assembled to the upper base plate 37 via the first upper rail member 16, the upper slide shaft 52b, the upper bush 52a, and the upper fixing plate 50. The first lower frame 12 provided at the lower end of the first panel 1 is assembled to the lower base plate 35 via the first lower rail member 17, the lower slide shaft 57b, the lower bush 57a, and the lower fixing plate 55.

[0061] In the above configuration, the upper slide shaft 52b and the lower slide shaft 57b slide in the front-rear direction, allowing the first panel 1 to be displaced in the thickness direction. Thus, the upper bush 52a and the upper slide shaft 52b, and the lower bush 57a and the lower slide shaft 57b function as first panel displacement parts that allow the first panel 1 to be displaced in the thickness direction.

[0062] The second panel 2 is displaceable between a closed state, as shown in Figures 1, 3, and 4(a), where it is positioned adjacent to the right side of the first panel 1 and on the same plane as the first panel 1; a movable state, as shown in Figures 4(b) and 5, where it is displaced forward from the closed state; and an open state, as shown in Figures 2, 4(c), and 6, where it slides to the left from the movable state and is positioned overlapping with the first panel 1 in the front-to-back direction when viewed from the front.

[0063] To move the closed second panel 2 to a movable state, first, the second upper closing holder 44 and the second lower closing holder 49 are energized to release the suction of the second upper closing plate 28 and the second lower closing plate 29. Then, as shown in Figure 2, the handle H is attached to the second panel 2, and as shown by the arrow in Figure 4(a), the user pulls it forward in the direction opposite to the exhibition space S. As a result, as shown in Figures 4(b) and 5, the second panel 2 is displaced forward and becomes movable. At this time, the second upper opening holder 41 and the second lower opening holder 46 suction the second upper opening plate 43 and the second lower opening plate 48.

[0064] As the second panel 2 is displaced into a movable state, the second main rail and the second sub-rail, which constitute the second rail, are connected. Specifically, as shown in Figure 4(b), the second upper rail member 26 is displaced forward together with the second panel 2, so that its front-to-back position coincides with that of the first upper frame 11, thereby connecting the second upper rail 26a and the first upper groove 11a. Similarly, the second lower rail member 27 is displaced forward together with the second panel 2, so that its front-to-back position coincides with that of the first lower frame 12, thereby connecting the second lower rail 27a and the first lower groove 12a.

[0065] By connecting the second main rail and the second sub-rail, the second panel 2 can be slid from its movable state to the width direction (left side) of the first panel 1, as shown by the arrow in Figure 4(b). That is, as shown in Figures 4(c) and 6, the second upper roller 24 rolls in the first upper groove 11a and the second lower roller 25 rolls in the first lower groove 12a, causing the second panel 2 to be displaced to an open state where it overlaps with the first panel 1 in a front view.

[0066] To displace the movable second panel 2 into a closed state, first, the second upper opening holder 41 and the second lower opening holder 46 are energized to release the suction of the second upper opening plate 43 and the second lower opening plate 48. Then, the user pushes the second panel 2 backward, in the direction of the exhibition space S. As a result, the second panel 2 is displaced backward and becomes closed, as shown in Figures 3 and 4(a).

[0067] As described above, in the display case 10 according to this embodiment, when the second panel 2 is in the open state, the second panel 2 is supported by the first upper frame 11 and the first lower frame 12 of the first panel 1. Therefore, the second panel 2 can be completely opened and placed in front of the first panel 1. In other words, according to the display case 10 according to this embodiment, the front surface is flat when closed, and the entire surface of the second panel 2 can be opened when open.

[0068] Furthermore, in the display case 10 according to this embodiment, the first upper groove 11a and the first lower groove 12a, which are the second sub-rails, are provided over the entire width of the first panel 1. This allows the second panel 2 to be displaced over the entire width of the first panel 1 when it is open, thereby increasing the range of motion of the second panel 2.

[0069] Furthermore, in the display case 10 according to this embodiment, the first panel 1 and the second panel 2 are formed to have the same width. This allows the first panel 1 and the second panel 2 to be superimposed in the width direction.

[0070] Furthermore, in the display case 10 according to this embodiment, it is also possible to provide a cover that shields part or all of the front surface of the first upper groove 11a and the first lower groove 12a, which are the second sub-rails. As a result, the first upper groove 11a and the first lower groove 12a are no longer visible when viewed from the front, thereby improving the aesthetic design of the display case 10.

[0071] Furthermore, in the display case 10 according to this embodiment, it is also possible to provide restricting members in the first upper groove 11a and first lower groove 12a, which are the second sub-rails, to restrict the rolling of the second rollers (second upper roller 24 and second lower roller 25). This restricts the rolling range of the second rollers in the second sub-rail, thereby preventing the second panel 2 from coming off the second sub-rail.

[0072] Furthermore, in the display case 10 according to this embodiment, the second panel 2 is displaced from a closed state to a movable state by being pulled in the opposite direction to the display space S by having a handle H attached to its surface. This makes it possible to easily displace the second panel 2 from a closed state to a movable state.

[0073] Furthermore, according to the display case 10 of this embodiment, since power only needs to be supplied to each permanent electromagnetic holder when the second panel 2 is being moved, power consumption can be reduced compared to when power is always supplied. In addition, in this embodiment, it is also possible to adopt a configuration in which an external power supply device (for example, a mobile battery) is connected to supply power to the permanent electromagnetic holder when it is desired to move the second panel 2.

[0074] In the display case 10 according to this embodiment, the assembly configuration of the first panel 1 is substantially the same as that of the second panel 2. Therefore, contrary to the above configuration, it is also possible to displace the first panel 1 from a closed state to a movable state and then to an open state.

[0075] To move the first panel 1, which is in a closed state as shown in Figure 7(a), to a movable state, first, the first upper closing holder 54 and the first lower closing holder 59 are energized to release the suction of the first upper closing plate 18 and the first lower closing plate 19. Then, the handle H is attached to the first panel 1, and the user pulls it forward in the opposite direction from the exhibition space S, as shown by the arrow in Figure 7(a). As a result, the first panel 1 is displaced forward and becomes movable, as shown in Figure 7(b). At this time, the first upper opening holder 51 and the first lower opening holder 56 suction the first upper opening plate 53 and the first lower opening plate 58.

[0076] As the first panel 1 is displaced into a movable state, the first main rail and the first sub-rail, which constitute the first rail, are connected. Specifically, as the first upper rail member 16 is displaced forward together with the first panel 1 and its front-to-back position coincides with that of the second upper frame 21, the first upper rail 16a and the second upper groove 21a are connected. Similarly, as the first lower rail member 17 is displaced forward together with the first panel 1 and its front-to-back position coincides with that of the second lower frame 22, the first lower rail 17a and the second lower groove 22a are connected.

[0077] By connecting the first main rail and the first sub-rail, the first panel 1 can be slid from its movable state to the width direction (right side) of the second panel 2, as shown by the arrow in Figure 7(b). That is, as shown in Figure 7(c), the first upper roller 14 rolls in the second upper groove 21a and the first lower roller 15 rolls in the second lower groove 22a, causing the first panel 1 to be displaced to an open state where it overlaps with the second panel 2 in a front view.

[0078] In addition, in the display case 10 according to this embodiment, it is also possible to slide the first panel 1 or the second panel 2 from a movable state toward the other panel 3. That is, it is also possible to displace the first panel 1 or the second panel 2 to an open state in which it overlaps with the other panel 3 when viewed from the front.

[0079] Furthermore, in the display case 10 according to this embodiment, the second roller (second upper roller 24 and second lower roller 25) and the first sub-rail, which consists of the second upper groove 21a and second lower groove 22a, are located at the same height in the second panel 2. The second roller is also positioned on the display space side of the first sub-rail.

[0080] Similarly, in the first panel 1, the first roller (first upper roller 14 and first lower roller 15) and the second sub-rail, which consists of the first upper groove 11a and first lower groove 12a, are located at the same height. The first roller is positioned on the exhibition space side of the second sub-rail.

[0081] In the display case 10 according to this embodiment, by configuring it as described above, when the first panel 1 or the second panel 2 is opened, the second upper groove 21a and the second lower groove 22a, which are the first sub-rails, and the first upper groove 11a and the first lower groove 12a, which are the second sub-rails, can be opened in an overlapping state, as shown in Figure 6.

[0082] Next, a modified display case according to the present invention will be described using Figures 8 to 12. The following modified display cases employ generally the same configuration as the display case 10 according to the above embodiment. For this reason, in the following modified cases, components common to the display case 10 are denoted by the same reference numerals, and detailed explanations are omitted, with the focus being on the different components.

[0083] The display case according to this modified example, like the display case 10 according to the above embodiment, has a first panel 1 and a second panel 2 adjacent to the right of the first panel 1. In the display case according to this modified example, the first panel 1 and the second panel 2 are constructed by holding translucent glass plates. This allows visitors to view the exhibits housed in the exhibition space S from the outside of the front of the display case.

[0084] As shown in Figures 8(a), 9, and 10, a pair of upper bushings 140-140 and upper slide shafts 141-141 are assembled on both the left and right sides of the rear of the second panel 2, behind the upper base plate 37. Each upper slide shaft 141 is slidable in the front-rear direction, passing through the upper bushings 140 and the upper base plate 37.

[0085] A second upper rail member 26, extending in the left-right direction, is fixed to the front end of the upper slide shafts 141-141. A suction portion 142 is spanned across the rear end of the upper slide shafts 141-141. A groove-shaped second upper rail 26a, opening to the front, is formed on the second upper rail member 26. The second upper rail 26a functions as a second main rail according to the present invention.

[0086] A second upper open holder 41, which is a permanent electromagnetic holder, is provided between the upper bushings 140-140 on the rear surface of the upper base plate 37. The second upper open holder 41 is one embodiment of the "open holder" according to the present invention. In this modified example, as shown in Figure 9, the object to be attracted 142 is positioned across the second upper open holder 41.

[0087] Furthermore, a second upper closing holder 44, which is also a permanent electromagnetic holder, is provided on the front surface of the upper base plate 37. The second upper closing holder 44 is one embodiment of the "closing holder" according to the present invention. The second upper open holder 41 and the second upper closing holder 44 can generate a magnetic field in the opposite direction to that of the permanent magnet by energizing the electromagnet, thereby canceling out the attractive force of the permanent magnet. The energization / de-energization of holders 41 and 44 is controlled by a control unit (not shown).

[0088] In this embodiment, a second upper open plate 142a is fixed to the front surface of the adsorbed portion 142. The second upper open holder 41 is configured to attract the second upper open plate 142a by a permanent magnet when not energized, and not to attract the second upper open plate 142a when energized.

[0089] Furthermore, as shown in Figure 10, a pair of lower bushings 145-145 and lower slide shafts 146-146 are assembled to the rear of the lower base plate 35. Each lower slide shaft 146 is designed to slide in the front-rear direction, passing through the lower bushings 145 and the lower base plate 35.

[0090] A second lower rail member 27, extending in the left-right direction, is fixed to the front end of the lower slide shafts 146-146. A suction portion 147 is spanned across the rear end of the lower slide shafts 146-146. A groove-shaped second lower rail 27a, opening to the front, is formed on the second lower rail member 27. The second lower rail 27a functions as a second main rail according to the present invention.

[0091] A second lower open holder 46, which is a permanent electromagnetic holder, is provided between the lower bushings 145-145 on the rear surface of the lower base plate 35. The second lower open holder 41 is one embodiment of the "open holder" according to the present invention. In this modified example, the object to be attracted 147 is positioned across the second lower open holder 46. Furthermore, a second lower closed holder 49, which is also a permanent electromagnetic holder, is provided on the front surface of the lower base plate 35. The second lower closed holder 49 is one embodiment of the "closed holder" according to the present invention.

[0092] In this embodiment, a second lower open plate 147a is fixed to the front surface of the adsorbed portion 147. The second lower open holder 46 is configured to attract the second lower open plate 147a by a permanent magnet when not energized, and not to attract the second lower open plate 147a when energized.

[0093] As shown in Figure 10, the second panel 2 is supported by the second upper rail member 26 and the second lower rail member 27. Specifically, the second panel 2 is constructed by supporting a transparent second glass plate 23 between the second upper frame 21 and the second lower frame 22. When the second panel 2 is closed, a sealing member P is interposed between the second glass plate 23 and the lower base plate 35 and the upper base plate 37.

[0094] The second upper frame 21 has a groove-shaped second upper groove 21a that opens to the front. The second lower frame 22 also has a groove-shaped second lower groove 22a that opens to the front. The second upper groove 21a and the second lower groove 22a function as the first sub-rail according to the present invention.

[0095] An upper support piece 21b extending downward is formed at the rear of the second upper frame 21, and a second upper closing plate 28, which is a steel plate, is fixed to the rear surface of the upper support piece 21b. The second upper closing holder 44 is configured to attract the second upper closing plate 28 by a permanent magnet when the second panel 2 is closed and not energized, but not to attract the second upper closing plate 28 when energized.

[0096] Furthermore, a lower support piece 22b extending upward is formed at the rear of the second lower frame 22, and a second lower closing plate 29, which is a steel plate, is fixed to the rear surface of the lower support piece 22b. The second lower closing holder 49 is configured to attract the second lower closing plate 29 by a permanent magnet when the second panel 2 is closed and not energized, and not to attract the second lower closing plate 29 when energized.

[0097] A second upper roller 24 extending to the rear is provided on the rear surface of the second upper groove 21a in the second upper frame 21 (see Figure 8). The second upper roller 24 is inserted into the interior of the second upper rail member 26 so that the second upper rail 26a can roll. That is, the second upper groove 21a of the second upper frame 21 and the second upper rail 26a of the second upper rail member 26 are arranged to overlap in the front-rear direction at the same height.

[0098] Furthermore, a second lower roller 25 extending to the rear is provided on the rear surface of the second lower groove 22a in the second lower frame 22. The second lower roller 25 is inserted into the interior of the second lower rail member 27 so that the second lower rail 27a can roll. That is, the second lower groove 22a of the second lower frame 22 and the second lower rail 27a of the second lower rail member 27 are arranged to overlap in the front-rear direction at the same height.

[0099] As described above, in the display case 10 according to this embodiment, the second upper frame 21 provided at the upper end of the second panel 2 is assembled to the upper base plate 37 via the second upper rail member 26, upper slide shafts 141-141, and upper bushings 140-140. The second lower frame 22 provided at the lower end of the second panel 2 is assembled to the lower base plate 35 via the second lower rail member 27, lower slide shafts 146-146, and lower bushings 145-145.

[0100] In the above configuration, the upper slide shafts 141-141 and the lower slide shafts 146-146 slide in the front-rear direction, allowing the second panel 2 to be displaced in the thickness direction. Thus, the upper bush 140 and the upper slide shaft 141, and the lower bush 145 and the lower slide shaft 146 function as second panel displacement parts that allow the second panel 2 to be displaced in the thickness direction.

[0101] To move the closed second panel 2 to a movable state, first, the second upper closing holder 44 and the second lower closing holder 49 are energized to release the suction of the second upper closing plate 28 and the second lower closing plate 29. Then, the handle H is attached to the second panel 2, and the user pulls it forward in the direction opposite to the exhibition space S. As a result, the second panel 2 is displaced forward and becomes movable, as shown in Figures 8(b), 11, and 112. At this time, the second upper opening holder 41 and the second lower opening holder 46 suction the second upper opening plate 142a and the second lower opening plate 147a.

[0102] In this modified example, the adsorbed portions 142 and 147, which are provided with the second upper open plate 142a and the second lower open plate 147a, are positioned across the second upper open holder 41 and the second lower open holder 46. This allows the second upper open holder 41 and the second lower open holder 46 to adhere to the second upper open plate 142a and the second lower open plate 147a more strongly. In other words, it is possible to improve the stability of the second panel 2 when it is in a movable state.

[0103] As the second panel 2 is displaced into a movable state, the second main rail and the second sub-rail, which constitute the second rail, are connected. Specifically, as shown in Figure 11, the second upper rail member 26 is displaced forward together with the second panel 2, and its front-to-back position coincides with that of the first upper frame 11, thereby connecting the second upper rail 26a and the first upper groove 11a. Similarly, the second lower rail member 27 is displaced forward together with the second panel 2, and its front-to-back position coincides with that of the first lower frame 12, thereby connecting the second lower rail 27a and the first lower groove 12a.

[0104] The second main rail and the second sub-rail are connected, allowing the second panel 2 to slide from its movable state to the width direction (left side) of the first panel 1. Specifically, the second upper roller 24 rolls in the first upper groove 11a and the second lower roller 25 rolls in the first lower groove 12a, causing the second panel 2 to be displaced to an open state where it overlaps with the first panel 1 when viewed from the front.

[0105] To displace the movable second panel 2 into a closed state, first, the second upper opening holder 41 and the second lower opening holder 46 are energized to release the suction of the second upper opening plate 142a and the second lower opening plate 147a. Then, the user pushes the second panel 2 backward, in the direction of the exhibition space S. As a result, the second panel 2 is displaced backward and enters a closed state.

[0106] As described above, in the display case 10 according to this embodiment, when the second panel 2 is in the open state, the second panel 2 is supported by the first upper frame 11 and the first lower frame 12 of the first panel 1. Therefore, the second panel 2 can be completely opened and placed in front of the first panel 1. In other words, according to the display case 10 according to this embodiment, the front surface is flat when closed, and the entire surface of the second panel 2 can be opened when open.

[0107] In this modified configuration, as shown in Figure 13, when the first panel 1 is closed, the side of the first sub-rail, the second upper groove 21a and the second lower groove 22a, that is opposite to the exhibition space S (the side facing the viewer) is covered by the first cover member 60. As a result, when the first panel 1 is closed, the second upper groove 21a and the second lower groove 22a are not visible to the viewer, thereby enhancing the aesthetic appeal of the display case 10. When the first panel 1 is opened, the first cover member 60 is removed from the second upper groove 21a and the second lower groove 22a.

[0108] In this modified example, the first cover member 60 is a magnet plate formed from a magnetic material, and the second upper frame 21 and second lower frame 22 are made of steel. This configuration allows the first cover member 60 to be attracted to the second upper frame 21 and second lower frame 22 by its magnetic force. It is also possible to assemble the first cover member 60 to either the second upper frame 21 or the second lower frame 22. Furthermore, the first cover member 60 is not limited to a magnet plate; it may be a plate-shaped member with a magnetic material provided on its back surface or inside.

[0109] In addition to using magnetism, the first cover member 60 can also be attached to the second upper frame 21 and second lower frame 22 by making the first cover member 60 adhesive and attaching it to the second upper frame 21 and second lower frame 22. Furthermore, the back surface of the first cover member 60 can be inserted into the second upper groove 21a and second lower groove 22a, or the first cover member 60 can be screwed into the second upper groove 21a and second lower groove 22a.

[0110] Furthermore, although the first cover member 60 is formed to the same length as the second upper frame 21 and the second lower frame 22, it is also possible to form the first cover member 60 to half or one-third the length of the second upper frame 21 (and the same applies to the second lower frame 22), and assemble two or three first cover members 60-60 side by side on the second upper frame 21. It is also possible to assemble the first cover member 60 across both the second upper frame 21 and the first upper frame 11.

[0111] Similarly, when the second panel 2 is closed, the second cover member can be used to cover the side of the second sub-rail, the first upper groove 11a and the first lower groove 12a, that is opposite to the exhibition space S (the side facing the viewer). This prevents the viewer from seeing the first upper groove 11a and the first lower groove 12a when the second panel 2 is closed, thereby enhancing the aesthetic appeal of the display case 10. When the second panel 2 is opened, the second cover member is removed from the first upper groove 11a and the first lower groove 12a. The second cover member can be assembled to the first upper frame 11 and the first lower frame 12 using the same method as the first cover member 60.

[0112] [Differentiation] The above embodiment can be modified as appropriate, as shown in the following modifications. Each modification may be applied in combination with other modifications, provided that no inconsistencies arise.

[0113] In the display case 10 according to this embodiment, rails and rollers are provided on both the upper and lower sides of the first panel 1 and the second panel 2. However, it is also possible to configure the display case to have rails and rollers only on the upper or lower side of the panel.

[0114] Furthermore, it is possible to make only one of the first panel 1 and the second panel 2 a movable panel and the other a fixed panel. In this case, the fixed panel can be made of an opaque plate material. Also, it is possible to configure the other panel 3 in the display case 10 according to this embodiment to be like the first panel 1 or the second panel 2, thereby providing three or more movable panels.

[0115] Furthermore, it is also possible to configure the first panel 1 (and the second panel 2, and so on) to have the first upper groove 11a and the first lower groove 12a, which are the second sub-rails, provided only in a portion of the width direction of the first panel 1. It is also possible to form the first panel 1 and the second panel 2 with different width dimensions.

[0116] Furthermore, it is also possible to omit the cover that shields the first upper groove 11a and the first lower groove 12a, which constitute the second sub-rail. Additionally, it is possible to omit the regulating members that restrict the rolling of the second roller in the first upper groove 11a and the first lower groove 12a, which constitute the second sub-rail.

[0117] Furthermore, in the display case 10 according to this embodiment, the movement of the first panel 1 and the second panel 2 in the front-to-back direction and the sliding displacement in the left-to-right direction are performed manually by attaching a handle H. However, it is also possible to configure these displacements to be performed by electric or hydraulic control.

[0118] In the display case 10 according to this embodiment, the displacement of the first panel 1 or the second panel 2 is restricted by a permanent electromagnetic holder. However, the configuration for restricting displacement can also include an electromagnet, a solenoid, or a motor in addition to the permanent electromagnetic holder. Furthermore, when using a permanent electromagnetic holder, it is also possible to configure it so that the movement of the first panel 1 or the second panel 2 is suppressed when energized and allowed when not energized.

[0119] In the display case 10 according to this embodiment, the multiple permanent electromagnetic holders may be controlled individually or collectively. By controlling the multiple permanent electromagnetic holders individually, safety in the display case 10 can be enhanced. By controlling the multiple permanent electromagnetic holders collectively, the first panel 1 or the second panel 2 can be opened and closed with fewer operations.

[0120] Furthermore, the power supply to the permanent electromagnetic holder may be controlled by a timer. That is, it is possible to configure the device so that the power supply to the permanent electromagnetic holder is automatically cut off after a certain period of time has elapsed since power was supplied. This prevents forgetting to turn off the power supply. [Explanation of Symbols]

[0121] 1. First Panel 2. Second Panel 3 Other Panels 10 display cases 11 First upper frame 11a First upper groove (second sub rail) 11b Upper support piece 12 First lower frame 12a First bottom groove (second sub rail) 12b Lower support piece 13 First glass plate 14 First upper roller 15 First lower roller 16 First upper rail member 16a First upper rail (first main rail) 17 First lower rail member 17a First lower rail (first main rail) 18 First upper obstructing plate 19 First lower obstructing plate 21 Second upper frame 21a Second upper groove (first sub-rail) 21b Upper support piece 22 Second lower frame 22a Second bottom groove (first sub rail) 22b Lower support piece 23 Second glass plate 24. Second upper roller 25. Second lower roller 26 Second upper rail member 26a Second upper rail (second main rail) 27 Second lower rail member 27a Second lower rail (second main rail) 28 Second upper obstructing plate 29 Second lower obstructing plate 31 Leg components 32 Leg frames 33 Support frame 34 Display stand 35 Lower base plate 36 Lower cover component 37 Upper base plate 38 Upper cover component 39 Ceiling components 40 Upper fixing plate 41 Second upper open holder 42a Upper bushing 42b Upper slide shaft 43 Second upper opening plate 44 Second upper closing holder 45 Lower fixing plate 46 Second lower open holder 47a Lower bushing 47b Lower sliding shaft 48 Second lower open plate 49 Second lower occluding holder 50 Upper fixing plate 51 First upper open holder (second open holder) 52a Upper bushing 52b Upper slide shaft 53 First upper open plate 54 First upper occlusion holder (second occlusion holder) 55 Lower fixing plate 56 First lower open holder (second open holder) 57a Lower bushing 57b Lower sliding shaft 58 First lower open plate 59 First inferior occlusion holder (second occlusion holder) 60 First cover component 140 Upper bushing 141 Upper slide shaft 142 Adsorbed part 142a Second upper open plate 145 Lower bushing 146 Lower slide shaft 147 Adsorbed part 147a Second upper open plate S Exhibition space F Floor H Handle P Seal Member

Claims

1. The first panel is positioned along the exhibition space and is transparent, A transparent second panel is positioned adjacent to either side of the width of the first panel and along the exhibition space, and is displaceable between a closed state and an open state. A second rail is provided which extends in the width direction of the first panel and the second panel and supports the second panel, The second panel includes a second panel displacement section that allows the second panel to be displaced in the thickness direction, An exhibition case comprising a closure holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet, The second panel has a second roller that rolls along the second rail, In the blocked state, the second panel is attracted to the blocked holder, which is not energized. The second panel, when energized, releases the suction of the closure holder, displacing it from a closed state to a movable state in the direction opposite to the exhibition space, and then, from the movable state, slides in the width direction toward the first panel, displacing it to an open state in which it overlaps with the first panel when viewed from the front. The second rail includes a second main rail located above and / or below the second panel, and a second sub-rail located above and / or below the first panel. The second main rail is a display case that displaces together with the second panel when the second panel is displaced from a closed state to a movable state, and communicates with the second sub-rail when the second panel is in a movable state.

2. It is equipped with an open holder, which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet. In the movable state, the second panel is attracted to the open holder which is not energized. The display case according to claim 1, wherein the second panel is displaced from a movable state to a closed state by displacing it in the direction of the display space when the suction of the open holder is released by energizing the open holder.

3. The second panel is provided with a portion to be adsorbed that is positioned across the open holder, The display case according to claim 2, wherein the second panel in a movable state has the adsorption portion adsorbed onto the open holder.

4. The display case according to claim 3, wherein when the second panel is closed, the side of the second sub-rail opposite to the display space is covered by the second cover member.

5. The first panel is displaceable between a closed state and an open state. A first rail is provided which extends in the width direction of the first panel and the second panel and supports the first panel, The first panel comprises a first panel displacement section that allows the first panel to be displaced in the thickness direction, It comprises a second occlusion holder which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet, The first panel has a first roller that rolls along the first rail, In the blocked state, the first panel is attracted to the second blocking holder, which is not energized. The first panel, when energized, releases the suction of the second closure holder, displacing it from a closed state to a movable state in the direction opposite to the exhibition space, and then, from the movable state, slides in the width direction toward the second panel, displacing it to an open state in which it overlaps with the second panel when viewed from the front. The first rail includes a first main rail located at the top and / or bottom of the first panel, and a first sub-rail located at the top and / or bottom of the second panel. The display case according to any one of claims 1 to 4, wherein the first main rail is displaced together with the first panel when the first panel is displaced from a closed state to a movable state, and communicates with the first sub-rail when the first panel is in a movable state.

6. It is equipped with a second open holder, which is a permanent electromagnetic holder composed of a combination of a permanent magnet and an electromagnet. In the movable state, the first panel is attracted to the second open holder, which is not energized. The display case according to claim 5, wherein the first panel is displaced from a movable state to a closed state by displacing it in the direction of the display space when the second open holder is energized, thereby releasing the suction of the second open holder.

7. In the second panel, the second roller and the first sub-rail are provided at the same height, and the second roller is positioned on the exhibition space side of the first sub-rail. The display case according to claim 6, wherein in the first panel, the first roller and the second sub-rail are provided at the same height, and the first roller is positioned on the display space side of the second sub-rail.

8. The display case according to claim 7, wherein when the first panel is closed, the side of the first sub-rail opposite to the display space is covered by the first cover member.

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