Support structure for display terminal
The support structure for display terminals uses magnetized housings and cooperative engagement to allow for simple, stable, and design-friendly installation, addressing the challenge of integrating display systems in offices without compromising aesthetics.
Patent Information
- Application Number
- JP2023117032
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-18
- Publication Date
- 2025-01-30
AI Technical Summary
Existing display terminal systems for facilities like conference rooms and private booths in offices often impair the design when installed, and there is a need for a configuration that allows for simple and stable installation without compromising aesthetics.
A support structure for display terminals using a housing with magnet parts and a supporting unit composed of adsorbing materials, allowing for easy attachment and detachment to furniture without affecting the design, and providing stable installation through cooperative engagement mechanisms.
The support structure enables display terminals to be installed without impairing the equipment's design, facilitating easy maintenance and replacement, while ensuring stability and a simple configuration.
Smart Images

Figure 2025014460000001_ABST
Abstract
Description
[Technical field]
[0001] The present disclosure relates to a support structure for a display terminal that displays the reservation status and usage status of equipment in an office or the like. [Background technology]
[0002] 2. Description of the Related Art Conventionally, there has been disclosed a technique relating to a display terminal that displays the usage status of facilities such as conference rooms and private booths provided in an office (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2020-95675 A Summary of the Invention [Problem to be solved by the invention]
[0004] In the reservation system described in Patent Document 1, there was a demand for a configuration that allows a display terminal to be easily installed in a facility without compromising the design. Therefore, an object of the present disclosure is to solve the above-mentioned problems. [Means for solving the problem]
[0005] The support structure for a display terminal relating to a first aspect of the present invention is a support structure for a display terminal having a display unit that displays the reservation status and / or usage status of equipment, and comprises a housing that houses the display terminal and a support unit for attaching the housing to a fixture of the equipment, wherein either the housing or the support unit has a magnet unit interposed between the housing and the support unit, and the other of the housing or the support unit is made of a material that has the property of being attracted by the magnet unit.
[0006] According to the support structure for a display terminal according to the first aspect, the display terminal can be easily attached to the facility without impairing the design.
[0007] A support structure for a display terminal according to a second aspect of the present invention is a support structure for a display terminal according to the first aspect, wherein one of the housing and the support part has an engaging part and the other has an engaged part, and the engaging part and the engaged part engage with each other.
[0008] According to the support structure for a display terminal according to the second aspect, the display terminal can be mounted on the facility with a simple configuration.
[0009] A support structure for a display terminal according to a third aspect of the present invention is the support structure for a display terminal according to the second aspect, wherein the engaging portion and the engaged portion are provided near upper ends of the housing and the support portion.
[0010] According to the support structure for a display terminal pertaining to the third aspect, the display terminal can be stably mounted on the facility.
[0011] A support structure for a display terminal in a fourth aspect of the present invention is a support structure for a display terminal in the first aspect, wherein the support portion is formed as any one of a hook for engaging the housing with the fixture, a plate for attaching the housing to the fixture, and a stand for placing the housing on the fixture.
[0012] According to the support structure for a display terminal relating to the fourth aspect, the display terminal can be attached according to the type of fixture.
[0013] A display terminal support structure according to a fifth aspect of the present invention is the display terminal support structure according to the first aspect, wherein the magnet section is provided on the housing, and the support section is made of steel.
[0014] According to the support structure for a display terminal according to the fifth aspect, the display terminal can be mounted on the facility with a simple configuration.
[0015] A support structure for a display terminal according to a sixth aspect of the present invention is the support structure for a display terminal according to the fifth aspect, wherein the housing is made of resin.
[0016] According to the support structure for a display terminal according to the sixth aspect, the display terminal can be mounted on the facility with a simple configuration.
[0017] A support structure for a display terminal according to a seventh aspect of the present invention is the support structure for a display terminal according to the first aspect, wherein the display terminal is an electronic shelf label having electronic paper as the display unit and a battery.
[0018] According to the support structure for a display terminal according to the seventh aspect, the display terminal can be configured at low cost.
[0019] The contents of the above second to seventh aspects are not necessarily essential configurations for the support structure for a display terminal according to the present invention, and may be omitted or changed as appropriate. Effect of the Invention
[0020] According to the above-described support structure for a display terminal according to the present invention, the display terminal can be easily attached to the facility without compromising the design. [Brief description of the drawings]
[0021] [Figure 1] FIG. 2 is a perspective view showing a state in which the support structure for the display terminal according to the first embodiment is used. [Diagram 2] FIG. 4 is an exploded perspective view showing an assembly structure between a display terminal and a housing. [Diagram 3] FIG. 2 is a perspective view showing an assembled state of the support structure for the display terminal according to the first embodiment. [Figure 4] FIG. 4 is a rear perspective view showing an assembly structure between the housing and the support portion. [Diagram 5] 1 is a cross-sectional view showing a state in which a support structure for a display terminal according to a first embodiment is used. [Figure 6] FIG. 11 is a perspective view showing a state in which a support structure for a display terminal according to a second embodiment is used. [Figure 7] FIG. 11 is a rear perspective view showing a state in which the support structure for a display terminal according to the second embodiment is in use. [Figure 8] FIG. 11 is a perspective view showing a support portion of a support structure for a display terminal according to a third embodiment. [Figure 9] FIG. 11 is a cross-sectional view showing a state in which a support structure for a display terminal according to a third embodiment is used. [Figure 10] FIG. 13 is a rear perspective view showing an assembled state of a support structure for a display terminal according to a fourth embodiment. [Figure 11] FIG. 13 is a cross-sectional view showing a state in which a support structure for a display terminal according to a fourth embodiment is used. [Figure 12] FIG. 13 is a cross-sectional view showing a state in which a support structure for a display terminal according to a fifth embodiment is used. [Figure 13] 13A and 13B are rear perspective views showing a support portion in a support structure for a display terminal according to a fifth embodiment, and a rear perspective view showing an assembly structure of a housing and the support portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] [First embodiment] First, a first embodiment of a support structure for a display terminal according to the present invention (hereinafter simply referred to as a "support structure") will be described with reference to Figs. 1 to 5. The support structure according to the present invention is a support structure for a display terminal having a display unit on the front side for displaying the reservation status and / or usage status (presence or absence of reservation / use, name of the person who reserved / used, reservation / use time, etc.) of facilities used in offices, schools, etc., such as conference rooms and individual booths. In this specification, the description will be given using an electronic shelf label 10 as the display terminal and electronic paper 11 as the display unit. A battery housing section 12 is formed on the rear side of the electronic shelf label 10, and a battery is housed inside the battery housing section 12 (see Fig. 4).
[0023] The support structure according to this embodiment includes a housing 20 that houses the electronic shelf label 10, and a support portion 30 for attaching the housing 20 to a fixture (wall, door, table, etc.) of the facility. In this embodiment, the housing 20 is attached to a wall W, as shown in Figs. 1, 3, and 5.
[0024] 1 to 5, the housing 20 is mainly composed of a front cover 21, an upper back cover 22, and a lower back cover 23, each of which is made of resin. The front cover 21 includes a first cover surface (front side) that covers the front side (the side on which the electronic paper 11 is formed) of the electronic shelf label 10. As shown in FIG. 1, an opening 21a is formed in the first cover surface of the front cover 21 to expose the display surface of the electronic paper 11.
[0025] The front cover 21 is also configured to include second cover surfaces (top, bottom, and both left and right surfaces) that cover the top, bottom, and both left and right sides of the electronic shelf label 10. As described above, according to the housing 20 of this embodiment, the electronic shelf label 10 can be used with the front side covered by the front cover 21, which improves the design of the equipment in which the housing 20 is installed.
[0026] 2, 4, and 5, the housing 20 according to this embodiment further includes an upper rear cover 22 provided on the upper side of the rear surface of the housing 20 as a rear cover that covers the rear side of the electronic shelf label 10. Engagement portions 22a that protrude forward are formed on both left and right ends of the upper rear cover 22. The upper rear cover 22 is assembled to the front cover 21 by engaging the engagement portions 22a with engaged portions formed inside the front cover 21 (see FIGS. 4 and 5).
[0027] 2, 4, and 5, the housing 20 according to this embodiment further includes a lower rear cover 23 provided on the lower side of the rear surface of the housing 20 as a rear cover that covers the rear side of the electronic shelf label 10. A support portion 23a that protrudes toward the front side, which is the side of the electronic shelf label 10, is formed at the bottom of the lower rear cover 23. As shown in Fig. 5, when the electronic shelf label 10 is covered with the housing 20, the electronic shelf label 10 is supported by the support portion 23a.
[0028] 2 and 5, a nut 23b is housed in the support portion 23a, and a hole penetrating the support portion 23a in the vertical direction is opened below the nut 23b. When assembling the lower rear cover 23 to the front cover 21, as shown in Fig. 2, a fixing bolt 25 is inserted into the hole from below the support portion 23a and screwed into the nut 23b, thereby fixing the lower rear cover 23 to the front cover 21 (see Figs. 4 and 5).
[0029] 4 and 5, one magnet 24 is fixed as a magnet part to the rear surface of the upper rear cover 22. In addition, three magnets 24 are fixed as magnet parts to the rear surface of the lower rear cover 23. These magnets 24 are used when attaching the housing 20 to the steel support part 30 for assembly.
[0030] In the housing 20 according to this embodiment, the upper rear cover 22 and the lower rear cover 23 cover the upper and lower sides of the battery accommodating section 12 on the rear surface of the electronic shelf label 10. In other words, the battery accommodating section 12 of the electronic shelf label 10 is configured to be exposed on the rear surface of the housing 20. This makes it possible to replace the battery without removing the electronic shelf label 10 from the housing 20 (with the upper rear cover 22 and the lower rear cover 23 attached to the front cover 21).
[0031] As described above, the housing 20 according to this embodiment can be used with the rear side of the electronic shelf label 10 covered by the upper rear cover 22 and the lower rear cover 23. This can further improve the design of the equipment.
[0032] In the housing 20 according to this embodiment, as shown in Figures 4 and 5, a gap is formed between the lower surface of the front cover 21, which covers the upper side of the electronic shelf label 10, and the upper surface of the upper back cover 22, and this gap is formed as the engaged portion 26 into which the engaging portion 32 of the support portion 30 described later is inserted.
[0033] 2, lower support grooves 27·27 are formed at both ends of the front surface of the lower rear cover 23 of the housing 20, and communication holes 28 are formed outward from the lower ends of the lower support grooves 27. Also, as shown in FIG. 4, upper support grooves 29·29 are formed at both ends of the rear surface of the upper rear cover 22.
[0034] Next, the support part 30 used to support the housing 20 (electronic shelf label 10) will be described with reference to Figures 1 to 5. In this embodiment, the housing 20 (electronic shelf label 10) is supported by the support part 30 as shown in Figure 1, and is installed on a fixture (wall W) in the facility.
[0035] 3 and 4, the support part 30 is formed by bending a steel plate. The support part 30 includes a main body part 31 and an engagement part 32 formed by bending forward from the upper end part of the main body part 31. In the support part 30, a double-sided tape 33 is attached to the rear surface of the main body part 31.
[0036] 3, the support part 30 is attached to the surface of the wall body W with double-sided tape 33. When the fixture to which the support part 30 is to be attached is a wooden board or the like, it is also possible to assemble the support part 30 to the fixture by inserting a screw into a screw hole 34 opened in the main body part 31 and screwing the screw into the wooden board.
[0037] In this embodiment, when the housing 20 (electronic shelf label 10) is attached to the wall W, as shown in Figures 4 and 5, the engaging portion 32 of the support portion 30 attached to the wall W is engaged with the engaged portion 26 of the housing 20, and the magnet 24 is attracted to the main body portion 31. As a result, with the support structure according to this embodiment, it is possible to easily attach the electronic shelf label 10 to the equipment without compromising the design of the equipment.
[0038] Furthermore, in the support structure according to this embodiment, the housing 20 and the support part 30 are assembled via the magnet 24, so the housing 20 and the support part 30 can be easily detached from each other. Therefore, when changing the battery of the electronic shelf label 10, performing maintenance, or replacing it when it breaks down, it is possible to detach only the housing 20 from the fixture and the support part 30 while leaving the support part 30 assembled to the fixture (wall W).
[0039] As described above, in the support structure according to this embodiment, the support part 30 has the engaging part 32, and the housing 20 is formed to have the engaged part 26, and is configured so that the engaging part 32 engages with the engaged part 26. This makes it possible to install the electronic shelf label 10 in equipment with a simple configuration.
[0040] Furthermore, in the support structure according to this embodiment, the engaging portion 32 and the engaged portion 26 are provided near the upper ends of the housing 20 and the support portion 30. This makes it possible to position the center of gravity of the housing 20 and the electronic shelf label 10 below the engaging portion, so that the electronic shelf label 10 can be stably installed on the equipment.
[0041] [Second embodiment] Next, a second embodiment of the support structure according to the present invention will be described with reference to Figures 6 and 7. In the support structure described in this embodiment and the following, the configurations of the electronic shelf label 10, which is a display terminal, and the housing 20 that houses the electronic shelf label 10 are similar to those in the first embodiment, and therefore detailed description thereof will be omitted.
[0042] The support structure according to this embodiment includes a housing 20 and a support section 130, which is a stand for attaching the housing 20 to a top plate T of a table, which is a fixture included in the facility. In this embodiment, the housing 20 (electronic shelf label 10) is supported by the support section 130 and placed on the upper surface of the top plate T of the facility, as shown in FIGS.
[0043] 6 and 7, the support part 130 is formed by bending a steel plate. The support part 130 includes a main body part 131, an engagement part 132 formed by bending forward from an upper end part of the main body part 131, and a base plate 133 formed by bending backward from a lower end part of the main body part 131. An opening part 134 is formed in the main body part 131 of the support part 130.
[0044] In this embodiment, when the housing 20 (electronic shelf label 10) is mounted on the tabletop T, as shown in Figures 6 and 7, the engaging portion 132 of the support portion 130 is engaged with the engaged portion 26 of the housing 20, and the magnet 24 is attracted to the main body portion 131. As a result, the support structure according to this embodiment makes it possible to easily mount the electronic shelf label 10 on the equipment without compromising the design of the equipment.
[0045] In the support part 130 in this embodiment, an opening 134 is formed in the main body part 131. The battery accommodating part 12 of the electronic shelf label 10 is located in the opening 134. This makes it possible to replace the battery of the electronic shelf label 10 without removing the housing 20 from the support part 130.
[0046] [Third embodiment] Next, a third embodiment of the support structure according to the present invention will be described with reference to Figures 8 and 9. The support structure according to this embodiment includes a housing 20 and a support part 230 for attaching the housing 20 to a partition P, which is a fixture of the facility. In this embodiment, the housing 20 (electronic shelf label 10) is supported by the support part 230 as shown in Figures 8 and 9, and attached to the partition P in the facility. As shown in Figure 9, the partition P has a large number of engaging holes Ph opened therein.
[0047] 8 and 9, the support part 230 is formed by bending a steel plate. The support part 230 includes a main body part 231, an engagement part 232 formed by bending forward from the upper end part of the main body part 231, and a locking part 233 extending rearward from the rear surface of the main body part 231. The locking part 233 is formed with a first locking piece 233a on the upper side and a second locking piece 233b on the lower side.
[0048] 9, the support part 230 is attached to the partition P by engaging the first locking piece 233a and the second locking piece 233b of the locking part 233 with the locking hole Ph. When the housing 20 (electronic shelf label 10) is provided in the partition P, as shown in Fig. 9, the engaging part 232 of the support part 230 attached to the partition P is engaged with the engaged part 26 of the housing 20, and the magnet 24 is attracted to the main body part 231. As a result, according to the support structure of this embodiment, it is possible to easily attach the electronic shelf label 10 to the equipment without compromising the design of the equipment.
[0049] [Fourth embodiment] Next, a fourth embodiment of the support structure according to the present invention will be described with reference to Figures 10 and 11. The support structure according to this embodiment includes a housing 20 and a support part 330 for attaching the housing 20 to a wall body W, which is a fixture of the facility. In this embodiment, the housing 20 (electronic shelf label 10) is supported by the support part 330 as shown in Figures 10 and 11, and attached to the back surface of the wall body W in the facility. As shown in Figures 10 and 11, a wall opening Wh is formed in the wall body W.
[0050] 10 and 11, the support part 330 is formed by bending a steel plate. The support part 330 includes a main body part 331, an upper support part 332 formed by bending an upper end part of the main body part 331, and a lower support part 333 formed by bending a lower end part of the main body part 331. The upper support part 332 and the lower support part 333 are fixed to the upper surface of the wall body W with screws.
[0051] When mounting the housing 20 (electronic shelf label 10) on the wall W, as shown in Figures 10 and 11, the housing 20 is inserted into the front side of the main body 331 of the support part 330 attached to the wall W, and the magnet 24 is attracted to the main body 331. At this time, the electronic paper 11 of the electronic shelf label 10 is exposed from the wall opening Wh as shown in Figure 10. As a result, according to the support structure of this embodiment, it is possible to mount the electronic shelf label 10 on the equipment simply and without compromising the design of the equipment.
[0052] [Fifth embodiment] Next, a fifth embodiment of the support structure according to the present invention will be described with reference to Figures 12 and 13. The support structure according to this embodiment includes a housing 20 and a support portion 430 that is a hook for engaging the housing 20 with a wall W that is a fixture of the facility. In this embodiment, the housing 20 (electronic shelf label 10) is engaged with the wall W of the facility via the support portion 430 as shown in Figures 12 and 13.
[0053] 12 and 13, the support part 430 is formed by bending a metal rod-shaped member. As shown in Fig. 12, the support part 430 includes a pair of first parts 431 / 431 formed along the up-down direction, second parts 432 / 432 bent laterally from a lower end part of the first part 431, third parts 433 / 433 bent rearward from an upper end part of the first part 431, fourth parts 434 / 434 bent downward from a rear end part of the third part 433, and a fifth part 435 connecting the lower ends of the fourth parts 434 / 434.
[0054] The support part 430 is attached to the housing 20. Specifically, as shown in Figures 12 and 13, the lower parts of the first parts 431·431 are received in the lower support grooves 27·27 of the housing 20. At this time, the second parts 432·432 extend outward from the communication holes 28. In addition, the upper parts of the first parts 431·431 are received in the upper support grooves 29·29 of the housing 20. In this way, the support part 430 is attached to the housing 20 by the upper rear cover 22 and the lower rear cover 23.
[0055] 12 , when the housing 20 (electronic shelf label 10) is attached to the wall W, the fourth parts 434·434 are elastically deformed relative to the third parts 433·433, and the support part 430 is engaged with the upper part of the wall W. In this way, the support structure according to this embodiment makes it possible to easily attach the electronic shelf label 10 to the equipment without compromising the design of the equipment.
[0056] As described above, in the support structure according to each embodiment of the present invention, the housing 20 is provided with the magnet 24, which is a magnet part interposed between the housing 20 and the support part (30, 130, 230, 330). The support part is made of a material (steel) that has the property of being attracted by the magnet 24. This allows the electronic shelf label 10 to be easily attached to the equipment without compromising the design.
[0057] Furthermore, in the support structure according to each embodiment, the housing 20 and the support part are assembled via a magnet part, so the housing 20 and the support part can be easily detached from each other. Therefore, when changing the battery of the electronic shelf label 10, performing maintenance, or replacing it in the event of a malfunction, it is possible to detach only the housing 20 from the fixture and the support part while leaving the support part assembled to the fixture.
[0058] Furthermore, in the support structure according to each embodiment of the present invention, the support portion has an engaging portion (32, 132, 232), and the housing 20 has an engaged portion 26, and the engaging portion engages with the engaged portion 26. This makes it possible to install the electronic shelf label 10 in equipment with a simple configuration.
[0059] Furthermore, in the support structure according to each embodiment of the present invention, the engaging portion is provided near the upper end of the support portion, and the engaged portion 26 is provided near the upper end of the housing 20. This allows the electronic shelf label 10 to be stably installed in the facility.
[0060] In the support structure according to each embodiment of the present invention, the support portion is formed as any one of a plate material (support portions 30-330) for attaching the housing 20 to a fixture, a stand (support portion 130) for placing the housing 20 on the fixture, and a hook (support portion 230) for engaging the housing 20 with the fixture. This allows the electronic shelf label 10 to be attached according to the type of fixture.
[0061] In the support structure according to each embodiment of the present invention, the housing 20 is made of resin, the magnet 24 is provided in the housing 20, and the support portion is made of steel. This allows the electronic shelf label 10 to be attached to equipment with a simple structure.
[0062] In the support structure according to each embodiment of the present invention, the display terminal is an electronic shelf label 10 having a battery and electronic paper 11 as a display unit. This makes it possible to configure the display terminal at low cost.
[0063] [Other variations] The above embodiment can be modified as appropriate as shown in the other modified examples shown below. Each modified example described in this specification may be applied in combination with other modified examples to the extent that no contradiction occurs.
[0064] The display terminal supported by the support structure may be a display device other than an electronic shelf label, a smartphone, a tablet, or other electronic terminals. Furthermore, the fixtures using the support structure are not limited to the above-described embodiment, and may be a cabinet, a storage shelf, a chair, a sofa, or other fixtures in addition to walls, partitions, and tabletops.
[0065] In addition, in the support structure, the shapes of the engaging portion and the engaged portion can be appropriately changed. Also, it is possible to adopt a configuration in which the housing has the engaging portion and the support portion has the engaged portion.
[0066] In addition, in the support structure, it is also possible to provide the magnet part on the support part and to construct the housing from a material that is attracted to the magnet part. In this case, the support part may be made of resin. In addition, nickel or cobalt can be used as the material that is attracted to the magnet part, in addition to steel. In this specification, the "material that is attracted to the magnet part" also includes the magnet itself. In other words, it is also possible to provide magnets on both the housing and the support part and to configure them to be attracted to each other.
[0067] It is also possible for the housing of the support structure to be configured such that the front cover does not cover the upper side, lower side, and part or all of the left and right sides of the housing of the electronic shelf label. In this case, it is also possible for the rear cover to cover the upper side, lower side, and part or all of the left and right sides of the housing of the electronic shelf label. It is also possible for the housing to be configured without a rear cover. It is also possible for the electronic shelf label to be not sandwiched between the rear cover and the front cover. [Explanation of symbols]
[0068] 10 Electronic shelf label (display terminal) 11 Electronic paper (display) 12 Battery compartment 20 Housing 21 Front cover 21a Opening 22 Upper back cover 22a Engagement portion 23 Lower back cover 23a Support part 23b Nut 24 Magnet 25 Fixing bolt 26 Engaged part 27 Lower support groove 28 Communication groove 29 Upper support groove 30 Support portion (first embodiment) 31 main body portion 32 engagement portion 33 Double-sided tape 34 Screw hole 130 Support portion (second embodiment) 131 main body portion 132 engagement portion 133 Substrate 134 Opening 230 Support portion (third embodiment) 231 Main body portion 232 Engagement portion 233 Locking part 233a First locking piece 233b Second locking piece 330 Support part (fourth embodiment) 331 Main body part 332 Upper support part 333 Lower support part 430 Support part (Fifth embodiment) 431 Part 1 432 Part 2 433 Part 3 434 Part 4 435 Part 5 W Wall Wh Wall opening T Top P Partition Ph Locked hole
Claims
1. A support structure for a display terminal having a display unit that displays a reservation status and / or a usage status of a facility, A housing that houses the display terminal and a support portion for attaching the housing to a fixture of the facility, a magnet portion interposed between the housing and the support portion is provided on either the housing or the support portion; A support structure for a display terminal, wherein the other of the housing and the support part is made of a material that has a property of being attracted by the magnet part.
2. 2. The display terminal support structure according to claim 1, wherein one of the housing and the support portion has an engaging portion and the other has an engaged portion, the engaging portion and the engaged portion engaging with each other.
3. The display terminal support structure according to claim 2 , wherein the engaging portion and the engaged portion are provided near upper ends of the housing and the support portion.
4. The support structure for a display terminal described in claim 1, wherein the support portion is formed as either a hook for engaging the housing with the fixture, a plate for attaching the housing to the fixture, or a stand for placing the housing on the fixture.
5. The display terminal support structure according to claim 1 , wherein the magnet portion is provided on the housing, and the support portion is made of steel.
6. The display terminal support structure according to claim 5 , wherein the housing is made of resin.
7. The support structure for a display terminal according to claim 1 , wherein the display terminal is an electronic shelf label having an electronic paper as the display unit and a battery.
Citation Information
Patent Citations
Resource reservation system, terminal setting method, program, utilization system, and information processing apparatus
JP2020095675A