Display stand

Abstract

This invention provides a display stand that can suppress shaking and prevent tipping when the display stand shakes due to earthquake tremors or other similar events. [Solution] The display stand of the present invention comprises a base installed on a mounting surface, a support column erected on the base, and a support body provided at the top of the support column to support a display. The base has a rear leg portion projecting downward from the rear surface of the base, with the front side of the display attached to the support body facing forward, and a front leg portion projecting downward from the rear surface of the front of the base, which has higher sliding properties than the rear leg portion.

Description

Technical Field

[0001] The present invention relates to a display stand.

Background Art

[0002] In recent years, in conference rooms and the like, thin large-screen displays are used. Such a display is installed at a high position using a display stand in order to be easily visible. As a display stand, a slim wall-mounted type with a small installation area is known in order to save space in the installation space (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] A wall-mounted display stand such as Patent Document 1 has a problem in that, due to its structure in which the center of gravity is high, it is vulnerable to swaying in the front-rear direction, and when it starts to sway, it bounces back against the wall on the back side and is likely to fall forward due to the recoil.

[0005] An object of the present invention is to provide a display stand that has been improved in consideration of the above circumstances.

Means for Solving the Problems

[0006] The display stand of the present invention comprises a base installed on a mounting surface, a support column erected on the base, and a support body provided on the upper part of the support column to support a display, wherein the base has the front side of the display attached to the support body facing forward, and includes a rear leg portion projecting downward from the rear surface of the base, and a front leg portion projecting downward from the rear surface of the front of the base, which has higher sliding properties than the rear leg portion.

[0007] According to the display stand of the present invention, even if the display stand is shaken and tilted due to earthquake tremors or the like, the highly slidable front legs provided on the underside of the front of the base slide along the mounting surface in the direction of the display's tilt, thereby suppressing the shaking of the display stand and preventing the display from tipping over by allowing the front of the base to catch on the mounting surface.

[0008] In the display stand of the present invention, the front surface of the front leg may be inclined so that it moves further away from the mounting surface towards the front.

[0009] According to this embodiment, when the display stand shakes due to earthquake tremors or the like, the front legs are prevented from catching on the mounting surface, thereby further suppressing the shaking of the display stand. Furthermore, when the display stand is tilted forward, the area in contact with the mounting surface by the front legs is increased, thereby more reliably preventing the display stand from tipping over. Note that the display stand of the present invention includes those in which the front surface of the front legs is not tilted with respect to the mounting surface (displayed vertically with respect to the mounting surface).

[0010] Furthermore, the display stand of the present invention may also be provided with the front legs at at least the left and right corners on the underside of the front part of the base.

[0011] In this configuration, even if the display stand sways and tilts due to earthquake tremors or the like, the swaying of the display stand can be evenly distributed and suppressed by providing front legs at at least both the left and right corners on the underside of the front of the base. The front legs may also be positioned in the center of the left and right sides on the underside of the front of the base.

[0012] The display stand of the present invention may have height-adjustable rear legs.

[0013] In this configuration, since the rear legs are height-adjustable, the display stand can be installed horizontally on various surfaces (for example, an uneven or inclined surface), improving stability.

[0014] In the display stand of the present invention, the support column may be erected at the rear of the base.

[0015] In this configuration, the support column and base can be placed close to the wall when installing the display stand, thus saving space. [Effects of the Invention]

[0016] In the present invention, if the display stand is shaken and tilted due to earthquake tremors or the like, the front legs, which have higher sliding properties than the rear legs, slide along the mounting surface in the direction of the display's tilt, thereby suppressing the shaking of the display stand, and the front of the base catches on the mounting surface, preventing the display from tipping over. [Brief explanation of the drawing]

[0017] [Figure 1] This figure shows a first embodiment of the display stand, where (A) is a perspective view taken from the front right upper side, and (B) is a perspective view taken from the rear left upper side. [Figure 2] In this embodiment, (A) is a front view and (B) is a rear view. [Figure 3]For the same embodiment, (A) is a top view and (B) is a bottom view. [Figure 4] It is an explanatory diagram of the attachment of the base cover for the same embodiment. [Figure 5] For the same embodiment, (A) is a perspective view of the base enlarged and viewed from the front, right, and obliquely downward, and (B) is a perspective view of the front leg portion enlarged. [Figure 6] It is a diagram showing the base of the same embodiment, where (A) is a front view and (B) is a right side view. [Figure 7] It is a diagram showing the base of the same embodiment, which is a longitudinal sectional view A - A of FIG. 6(A). [Figure 8] It is a diagram showing the same embodiment in which the display stand has swung due to an earthquake shake or the like and has taken a forward - inclined posture. (A) is an explanatory diagram of the entire display viewed from the right, and (B) is an explanatory diagram of the base portion enlarged and viewed from the right side. [Figure 9] It is an explanatory diagram of the attachment of the column cover for the same embodiment. [Figure 10] It is an explanatory diagram of the attachment of the base body and the column for the same embodiment. [Figure 11] For the same embodiment, (A) is an explanatory diagram of the attachment of the support and the support fixing fitting, (B) is an explanatory diagram of the attachment of the column and the upward stop fitting, and (C) is a front view of the upper part of the column enlarged. [Figure 12] It is an explanatory diagram of the attachment of the support and the column for the same embodiment. [Figure 13] For the same embodiment, (A) and (B) are explanatory diagrams of the attachment of the shelf fixing member and the column, and (C) is a front view of a part of the column enlarged. [Figure 14] It is an explanatory diagram of the attachment of the display and the support for the same embodiment. [Figure 15] It is an explanatory diagram of the attachment of the rear shelf for the same embodiment. [Figure 16] It is an explanatory diagram of the attachment of the shelf for the same embodiment. [Figure 17] It is a diagram showing the second embodiment of the display stand, where (A) is a top view and (B) is a bottom view. [Figure 18] It is an explanatory diagram of the attachment of the extension base body for the same embodiment. [Figure 19] This is an explanatory diagram for the mounting of the rear leg portion of the same embodiment. [Figure 20] This is an explanatory diagram for the installation of the extension base cover in the same embodiment. [Figure 21] This is a diagram showing the base of the same embodiment, and is a longitudinal cross-sectional view of BB in Figure 17(A). [Figure 22] This is an explanatory diagram for attaching the rear cover of the same embodiment. [Modes for carrying out the invention]

[0018] Next, embodiments of the present invention will be described based on the drawings. In the following description, the terms "front and back" and "left and right" will be used to specify directions, but these terms are based on the person viewing the display. The front viewing direction is the direction opposite to the person viewing the display, and therefore, the left and right in the front view are reversed from the left and right as seen from the person viewing the display.

[0019] <First Embodiment> A first embodiment of the present invention will now be described. This embodiment is a wall-mounted display stand.

[0020] As shown in Figures 1-3, the display stand of this embodiment comprises a base 2 which is installed on a mounting surface F such as the floor and serves as the base of the display stand, a support column 3 which is erected on the base 2, a support body 4 which is provided on the upper part of the support column 3 and supports the display D, and a shelf 5 which is attached to the support column 3 and holds electronic devices such as a microphone speaker and a camera. The display stand has a generally symmetrical configuration with the left and right center line extending in the front-to-back direction as the axis of symmetry in a plan view.

[0021] As shown in Figures 1-3, the base 2 is rectangular in plan view and comprises a base body 21, a base cover 22 that covers the upper surface of the base body, a rear leg portion 23 that supports the rear of the base body 21, and a front leg portion 24 that supports the front of the base body 21.

[0022] As shown in Figures 3 to 7, the base body 21 comprises a front frame 210 and a rear frame 211 extending in the left-right direction, beams 212, 213, 214, and 215 extending in the front-rear direction and connecting the front frame 210 and the rear frame 211, and a support fixing part 216 projecting upward from the central part of the rear frame 211. The base body 21 may be made of metal such as steel or aluminum alloy, or it may be made of other materials such as synthetic resin or wood.

[0023] The front frame 210, which constitutes the front part of the base 2, has a U-shaped channel (groove) form that opens downward. The front frame 210 has an upper part 210a located on the upper side of the front of the base body 21, and front and rear front parts 210b and rear part 210c. The front part 210b, located at the front (front-facing side), has screw insertion holes 801 for screwing and fixing the base cover 22. A pair of left and right front leg mounting parts 210d are fixed to both the left and right ends of the front frame 210. The front leg mounting parts 210d have an upward-opening U-shaped channel (groove) form that extends in the front-rear direction, with the front half fixed to the front frame 210 so as to overlap with the front frame 210, while the rear half is provided so as to protrude backward from the rear part 210c of the front frame 210. The front leg parts 24 are fixed to the lower surface of the front leg mounting parts 210d, for example by screw fastening.

[0024] The rear frame 211, which constitutes the rear of the base 2, has a U-shaped channel (groove) form that opens downward. The rear frame 211 has an upper surface portion 211a located on the upper side of the rear of the base body 21, and front and rear surface portions 211b and 211c. A pair of left and right engagement grooves 802 for attaching the base cover 22 are formed in the central part of the front surface portion 211b located at the front (front-facing side).

[0025] The upper surface portion 210a of the front frame 210 and the upper surface portion 211a of the rear frame 211 are both positioned in a substantially horizontal position, with the upper surface portion 211a of the rear frame 211 positioned higher than the upper surface portion 210a of the front frame 210. The length of the rear frame 211 in the left-right direction is such that the rear frame 211 is longer than the front frame 210. The rear surface portion 211c of the rear frame 211 is trapezoidal in shape, with the lower side being longer than the upper side, and the left and right side ends (the left and right hypotenuses of the trapezoid) of the rear surface portion 211c protrude outward to the left and right from the positions of the left and right side ends of the upper surface portion 211a.

[0026] Beams 212-215 have an upward-opening U-shaped channel (groove) form and are horizontally mounted between the front frame 210 and the rear frame 211 with a gap in the left-right direction. Beams 212-215 have bottom portions 212a, 213a, 214a, and 215a located on the bottom side (installation surface F side) of the base body 21, and left and right side portions 212b, 213b, 214b, and 215b.

[0027] Of the beams 212 to 215, beams 214 and 215 located on the left and right central sides of the base body 21 have flange portions 214c and 215c where the longitudinal edges of the left and right side portions 214b and 215b are bent outwards. Screw holes 803 for attaching the rear leg portions 23 are formed on the lower surfaces of the bottom portions 212a to 215a at positions where they intersect with the rear frame 211. The method of fixing the beams 212 to 215 to the front frame 210 and the rear frame 211 is, for example, welding, but is not limited to this, and other fixing methods such as screwing or riveting may also be used.

[0028] Between the front frame 210 and the rear frame 211 of the base body 21, the upper ends of the side portions 212b to 215b of the beams 212 to 215 are in a low-at-front, high-at-rear position, and are inclined from the upper surface portion 211a of the rear frame 211 toward the upper surface portion 210a of the front frame 210. The left and right outer side portions 212b and 213b of the beams 212 and 213 have their front upper corners positioned above the upper surface portion 210a of the front frame 210, and their rear upper corners positioned above the upper surface portion 211a of the rear frame 211.

[0029] The support column fixing portion 216 is formed in a rectangular tube shape with an opening at the rear (back side) and protrudes through the central part of the upper surface portion 211a of the rear frame 211. A screw insertion hole 804 is formed at the front (front side) of the support column fixing portion 216 for screwing in and fixing the support column 3 after it has been inserted into the support column fixing portion 216.

[0030] The base cover 22, which constitutes the surface (top surface) of base 2, is rectangular in plan view and is integrally formed from a roughly trapezoidal central inclined portion 22a that widens from above the trapezoidal upper edge of the rear surface portion 211c of the rear frame 211 toward the front of the top surface portion 210a of the front frame 210, and roughly triangular left and right inclined portions 22b that narrow toward the left and right front corners of the central inclined portion 22a from the left and right hypotenuses of the trapezoid of the rear surface portion 211c of the rear frame 211. A notched recess 221 is formed in the central part of the rear (support column 3 side) of the central inclined portion 22a for the support column fixing portion 216 to pass through.

[0031] The central inclined section 22a is inclined from the upper surface 211a of the rear frame 211 toward the upper surface 210a of the front frame 210, following the inclination of the upper ends of the side portions 212b to 215b of the beams 212 to 215. There are gaps between the front edge of the central inclined section 22a and the mounting surface F, and between the left and right outer edges of the left and right inclined sections 22b and the mounting surface F, through which wiring C such as power cords can be pulled out from inside the base body 21. The base cover 22 is made of sheet metal, for example, but may be made of synthetic resin such as plastic or other materials such as wood.

[0032] Near the notched recess 221 on the back side of the central inclined portion 22a, a pair of left and right engaging claws 222 are provided for attaching the base cover 22 to the base body 21. On the front edge of the back side of the base cover 22, a pair of left and right L-shaped brackets 223 are provided, each having a screw insertion hole 805 for fixing the base cover 22 attached to the base body 21.

[0033] As shown in Figure 4, when attaching the base cover 22 to the base body 21, first insert the left and right engaging claws 222 of the base cover 22 into the left and right engaging grooves 802 of the base body 21, and align the screw insertion holes 805 of the base cover 22 with the screw insertion holes 801 of the base body 21. At this time, the upper edges of the left and right outer side portions 212b and 213b of the left and right outer beams 212 and 213 of the base body 21 abut against the back surface of the base cover 22 for support. Then, insert the hand-tightened screw 950 from the front (front side) to the rear (back side) through the screw insertion hole 901, and then through the screw insertion hole 900, and screw it into the nut fixed to the rear surface of the front portion 210b of the front frame 210 to secure it.

[0034] As shown in Figures 3 and 5-7, the base 2 includes a rear leg portion (adjuster) 23 that protrudes downward from the back side of the base body 21, and a front leg portion (slider) 24 that protrudes downward from the back side of the front part of the base body 21 and has higher sliding properties than the rear leg portion 23.

[0035] The rear leg portion 23 includes an installation portion 23a that contacts the installation surface F and a threaded portion 23b for connecting to the base body 21. The circular installation portion 23a is made of a material with lower sliding properties (higher coefficient of friction with respect to the installation surface F, making it less likely to slip) than the front leg portion 24. The installation portion 23a may be made of, for example, elastomer, resin, metal, wood, etc. In addition, the surface of the installation portion 23a (the surface that contacts the installation surface F) may be coated to reduce sliding properties (for example, an elastomer coating), or a sheet of a material with a low coefficient of friction may be attached with adhesive. Note that the shape of the installation portion 23a is not limited to a circular shape and can be changed as appropriate.

[0036] As shown in Figures 5 to 7, when attaching the rear legs 23 to the base body 21, the threaded portion 23b of the rear legs 23 is inserted into each of the four threaded holes 803 provided on the back side of the base body 21, and the mounting portion 23a is rotated and screwed in. At this time, the degree to which each rear leg 23 is screwed in is adjusted to adjust the distance (height) between the mounting surface F and the base body 21. The two central rear legs 23 are positioned near the left and right of the lower end of the support column 3 and firmly support the load of the display D via the support column 3. The two outer rear legs 23 are positioned towards the left and right outer parts of the rear of the base body 21 and ensure the stability of the rear of the base 2. For example, the display stand can be installed horizontally (with the support column 3 perpendicular to the ground or parallel to the wall W) even on an inclined mounting surface F, improving stability.

[0037] The front legs 24 are roughly rectangular in shape, with rounded edges and corners that contact the mounting surface F. The front legs 24 are fixed to the lower surfaces of the front leg mounting portions 210d, which are provided at both the left and right ends of the front frame 210 of the base body 21, with the longitudinal direction of the front legs 24 coinciding with the front-to-back direction. The method of fixing the front legs 24 to the base body 21 is, for example, by screwing them in at two places, front and rear, but is not limited to this, and other methods such as adhesive or riveting may also be used.

[0038] The front surface 24a of the front leg 24 is inclined so that it moves further away from the mounting surface F as it approaches the front of the base 2. In other words, the front surface 24a of the front leg 24 is inclined backward from the base body 21 toward the mounting surface F. The inclination angle of the front surface 24a with respect to the mounting surface F is, for example, 45 degrees.

[0039] The front legs 24 are made of a material that has higher sliding properties than the rear legs 23 (lower coefficient of friction with respect to the contact surface F, making them more slippery). The material of the front legs 24 may be, for example, POM (polyacetal) resin, fluororesin, nylon, plastic, metal, wood, etc. In addition, the front surface 24a and bottom surface 24b (the surface that contacts the contact surface F) of the front legs 24 may be coated to improve sliding properties (for example, with a fluororesin coating), or a sheet of a material with a low coefficient of friction may be attached with an adhesive.

[0040] The shape, size, and inclination angle of the front surface 24a of the front legs 24 are not limited to this embodiment and can be modified as appropriate. Furthermore, the sides of the front legs 24, other than the front surface 24a, may also be inclined inward from the base body 21 toward the mounting surface F.

[0041] As shown in Figure 8, when the display stand shakes due to earthquake tremors or the like, the highly sliding front legs 24 slide across the mounting surface F without getting caught. By reducing the coefficient of friction between the front legs 24 and the mounting surface F, the shaking of the display stand is suppressed (seismic isolation), and in particular, the display stand is prevented from tipping over in the forward direction. Furthermore, when the display stand tilts backward, the wall surface W acts as a support to prevent the display stand from tipping over backward. The rear legs 23, which have relatively low sliding properties with respect to the mounting surface F, suppress the display stand from moving away from the wall surface W, thus contributing to preventing the display stand from tipping over backward.

[0042] Thus, the display stand of this embodiment has a highly sliding front leg portion 24 with an inclined front surface 24a that has a function to prevent the display stand from tipping over (seismic isolation), making it less likely to tip over even if the display stand shakes due to earthquake tremors or the like. In particular, the display stand of this embodiment can prevent tipping forward, and when the display stand shakes back and forth due to earthquake tremors or the like, it can bounce off the wall surface W on the back side, preventing it from tipping forward due to the recoil.

[0043] As shown in Figure 9, the support column 3 comprises a rectangular cylindrical support column body 31 that extends vertically, and a support column cover 33 that covers the front surface of the support column body 31.

[0044] The rectangular tubular support column body 31 is integrally formed by welding a U-shaped channel-shaped metal inner frame 311, which is also a U-shaped channel-shaped metal inner frame, to a U-shaped channel-shaped metal outer frame 310 that is open to the front, with the left and right front ends aligned. The inner frame 311 is provided in a shallower channel shape than the outer frame 310, and a space P (see Figure 7) is formed between the rear surface of the inner frame 311 and the rear surface of the outer frame 310. The upper plate 311a fixed to the upper end of the support column body 31 closes the upper part of the space P. Note that the method of fixing the outer frame 310 and the inner frame 311 is not limited to welding; other fixing methods such as screwing, bolting, or riveting may also be used.

[0045] The space P formed between the outer frame 310 and the inner frame 311 is open on the lower side of the support column 3. A screw insertion hole 806 is formed in the lower part of the inner frame 311 for inserting and fixing the support column body 31 into the support column fixing part 216 of the base body 21. The outer frame 310 and the inner frame 311 are made of steel, but they may be made of other metals such as aluminum alloy, or of other materials such as synthetic resin or wood.

[0046] As shown in Figure 9, when attaching the support column body 31 to the base body 21, insert the support column body 31 into the support column fixing part 216 so that the screw insertion hole 804 formed in the support column fixing part 216 of the base body 21 and the screw insertion hole 806 formed in the support column body 31 overlap. Then, insert the screw 902 from front to back through the screw insertion hole 806, and then through the screw insertion hole 804, and screw it into the nut fixed to the rear surface of the inner frame 311 to secure it. By providing the support column 3 at the rear of the base 2, the display stand can be installed with the base 2 and support column 3 close to the wall surface W, thereby saving installation space.

[0047] As shown in Figures 11(C) and 12, the upper end portion of the inner frame 311 of the support column body 31 has left and right support engagement grooves 312 provided at equal intervals in multiple locations vertically, shelf fixing device engagement holes 313 provided at equal intervals in three locations vertically for attaching the shelf 5, screw insertion holes 807 formed on the left and right sides of the shelf fixing device engagement holes 313, and a pair of left and right support column cover engagement grooves 314 for attaching the upper part of the support column cover 33. The support column cover engagement grooves 314 are also provided in two locations on the left and right sides of the lower end portion of the inner frame 311. The support engagement grooves 312, shelf fixing device engagement holes 313, and screw insertion holes 807 can be selected according to the size of the display D, etc., and the display D and shelf 5 can be attached at the desired height position.

[0048] This embodiment includes 16 support engagement grooves 312 that are height-adjustable in 8 stages, and shelf fixing engagement holes 313 and screw insertion holes 807 that are height-adjustable in 3 stages. For example, if the height from the mounting surface F to the bottom edge of the display D is 940 mm, and the height from the lowest screw insertion hole (not shown) on the back of the display D to the bottom edge of the display D is 160 mm, then the fifth left and right support engagement grooves 312 from the top are selected. Note that the number and arrangement of the support engagement grooves 312, shelf fixing engagement holes 313, and screw insertion holes 807 are not limited to this embodiment and can be changed as appropriate.

[0049] As shown in Figures 11(B) and 12, the U-shaped anti-rise fitting 32, which opens backward, is a metal component for connecting the column body 31 and the support body 4. The anti-rise fitting 32 has a plate-shaped main surface portion 32a that extends left and right in the upright position, and claw portions 32b that extend backward from both left and right ends of the main surface portion 32a. The engaging claws 320 provided at the ends of the left and right claw portions 32b of the anti-rise fitting 32 are inserted from the front into the support body engagement groove 312 at the desired height position of the column body 31 and engaged. The main surface portion 32a of the anti-rise fitting 32 has a screw insertion hole 808 for connecting to the support body 4. Note that the material of the anti-rise fitting 32 is not limited to metal and can be changed as appropriate.

[0050] As shown in Figure 9, the support column cover 33 covers the front side (front side) of the support column body 31, and can conceal and house wiring C such as electrical cords routed inside the support column body 31. An L-shaped rib 330 extending in the vertical direction is fixedly provided on the back side of the support column cover 33. Engaging claw members 331 for attaching the support column cover 33 to the support column body 31 are provided at the upper and lower ends of the back side of the support column cover 33. The engaging claw members 331 consist of a pair of left and right engaging claws that engage with the left and right support column cover engagement grooves 314. The support column cover 33 may be made of synthetic resin such as plastic, or it may be made of other materials such as wood or metal.

[0051] As shown in Figure 9, when attaching the support column cover 33 to the support column body 31, the wiring C is housed inside the support column body 31, and the engaging claw members 331 of the support column cover 33 are inserted into the four support column cover engaging grooves 314 on the top, bottom, left, and right of the support column body 31 to engage them. The provision of ribs 330 on the back side of the support column cover 33 ensures space for housing the wiring C while maintaining the strength of the support column cover 33 that forms the front surface of the support column 3.

[0052] As shown in Figures 11(A), 12, and 14, the support 4 comprises a rectangular support body 41 which serves as the base material of the support 4, an H-shaped support fixing bracket 42 for connecting the support body 41 to the support column 3, and an L-shaped display fixing bracket 43 for connecting the support body 41 to the display D. The support body 41 and the fixing brackets 42 and 43 are made of metal, for example, but may be made of other materials.

[0053] The peripheral edge of the support body 41 is bent toward the display D side, forming a flange portion 410. The upper flange portion 410a of the upper peripheral edge of the support body 41 has multiple upper engagement grooves 809 formed in the left-right direction for connecting with claws provided near the upper end of the display fixing device 43. The lower flange portion 410b of the lower peripheral edge of the support body 41 has a lower engagement groove 810 and a screw insertion hole 811 formed therein for fixing the lower end of the display fixing device 43. The lower part of the support body 41 has two sets on each side of the engagement groove 812 and screw insertion hole 813 formed therein for attaching the left and right rear shelves 44.

[0054] In the left-right central portion of the support body 41, elongated vertical engagement grooves 814 are formed towards the upper part for attaching the support fixing bracket 42, and two screw insertion holes 815 are formed in the upper and lower central portion. Below the screw insertion holes 815, screw insertion holes 816 are formed for attachment to the support column 3 via the anti-rise bracket 32. In the lower central portion of the support body 41, a downward-facing notched recess 411 is formed for passing the wiring C. In addition, openings 412 for passing the wiring C are formed on both the left and right sides of the screw insertion holes 815 and 816 of the support body 41.

[0055] As shown in Figure 11(A), the support fixing bracket 42 for connecting the support body 41 and the support column 3 is made of metal and comprises a vertically elongated main surface portion 42a with screw insertion holes 817 formed therein for fixing to the support body 41, and a pair of left and right side plate portions 42b extending backward from both left and right edges of the main surface portion 42a. At the upper end of the side plate portion 42b, an engaging claw 420 is formed that protrudes forward (towards the support body 41) than the main surface portion 42a, engaging with the vertically elongated engaging groove 814 of the support body 41. At the lower end of both side plate portions 42b, two upper and lower engaging claws 421 are formed in a downward key shape, protruding backward (towards the support column 3) and engaging with the support engaging groove 312 of the support column 3.

[0056] As shown in Figure 14, the two roughly L-shaped display fixing devices 43 for connecting the support body 41 and the display D each comprise a vertically elongated display connecting surface portion 43a with multiple screw insertion holes 818 arranged vertically for fixing to the display D, side plate portions 43b extending backward from the left and right inner side edges of the display connecting surface portion 43a and fixed to the support body 41, and a bottom plate portion 43c extending backward from the lower edge of the display connecting surface portion 43a. The rear end edge of the side plate portion 43b has a downward-facing key-shaped engaging claw 430 formed in the upper part for engaging with the upper engaging groove 809 of the support body 41. The lower end of the side plate portion 43b has an engaging claw 431 projecting downward for engaging with the lower engaging groove 810 of the support body 41. The bottom plate portion 43c has screw insertion holes 819 formed for fixing to the screw insertion holes 811 of the support body 41.

[0057] As shown in Figure 14, when attaching the display fixtures 43 to the back of the display D, the display connecting surfaces 43a of the two left and right display fixtures 43 are fixed to the back of the display D with the bottom plate portion 43c facing downwards. For example, the lower end screw insertion hole of the display D (for example, the lower end screw insertion hole located about 300 mm upwards from the lower end of the display D) and the lowest screw insertion hole 818 of the display fixture 43 are aligned. Then, a screw (not shown) is inserted through the screw insertion hole 818, and then inserted through the lower end screw insertion hole (not shown) of the display D and screwed in to secure it. When attaching the left and right display fixtures 43 attached to the display D to the support body 41, the upper and lower engaging claws 430, 431 of the display fixtures 43 are inserted from above into the corresponding upper and lower engaging grooves 809, 810 of the support body 41 and engaged. Then, the screw insertion hole 819 in the bottom plate portion 43c of the display fixing device 43 and the screw insertion hole 811 in the support body 41 are aligned, and the screw 903 is inserted from below into the screw insertion hole 811, then into the screw insertion hole 819, and screwed into the nut fixed to the upper surface of the bottom plate portion 43c to secure it.

[0058] As shown in Figure 11(A), when attaching the support fixing bracket 42 to the support body 41, the left and right engaging claws 420 of the support fixing bracket 42 are inserted into the left and right vertically elongated engaging grooves 814 of the support body 41 and moved upward in the direction of bending of the flange portion 410 of the support body 41 (from the support column 3 side toward the display D side), and the bracket is superimposed so that the screw insertion holes 817 of the support fixing bracket 42 and the screw insertion holes 815 of the support body 41 are aligned. Then, the two upper and lower screws 904 are inserted from the support body 41 side into the screw insertion holes 815, and then into the screw insertion holes 817, and screwed into the nuts fixed to the inner surface of the main surface portion 42a of the support fixing bracket 42 to secure it.

[0059] As shown in Figures 11(B) and 12, when connecting the support body 41 to which the support fixing bracket 42 is attached and the support column body 31 to which the anti-rise bracket 32 ​​is attached, first, a pair of support engagement grooves 312 at a desired height position are selected from the support engagement grooves 312 provided in the support column body 31, and the left and right claws 32b of the anti-rise bracket 32 ​​are inserted from the front into the outer engagement grooves 312b of the selected support engagement grooves 312 to attach it to the support column body 31. Then, the surface of the support fixing bracket 42 to which the support body 41 is attached and the surface of the support column body 31 to which the anti-rise bracket 32 ​​is attached are positioned opposite each other, and the four engagement claws 421 of the support fixing bracket 42 are inserted into the left and right outer engagement grooves 312b so that the positions of the screw insertion holes 816 of the support body 41 and the screw insertion holes 808 of the anti-rise bracket 32 ​​are aligned, and pushed downward.

[0060] Subsequently, of the four engaging claws 421, the two lower left and right engaging claws 421b are inserted into the left and right outer inner engaging grooves 312a of the outer engaging groove 312b into which the claw portion 32b of the lift-stopping bracket 32 ​​is inserted, thereby restricting the left and right outward latitude of the claw portion 32b of the lift-stopping bracket 32. In addition, the upper edge of the notched recess 411 of the support body 41 approaches or abuts against the upper edge of the main surface portion 32a of the lift-stopping bracket 32, thereby restricting the upward movement of the main surface portion 32a. Then, the screw 905 is inserted from the display D side toward the support column 3 side through the screw insertion hole 816, and then through the screw insertion hole 808 and screwed into the nut fixed to the back of the main surface portion 32a of the lift-stopping bracket 32, thereby fixing it in place. This ensures that the support 4 is held in place by the support column 3 in a way that prevents it from coming loose.

[0061] As shown in Figure 15, the rear shelf 44 has a rectangular shelf board 44a and a pair of left and right claw flange portions 44b that protrude upward from the front edge of the shelf board 44a. Ribs are erected along the rear edge and left and right edges of the shelf board 44a. Screw insertion holes 820 for fixing the rear shelf 44 to the support body 41 are formed in the claw flange portions 44b. By providing the rear shelf 44, recording equipment, communication equipment, etc. can be compactly stored on the back of the display D. The rear shelf 44 may be made of metal such as steel or aluminum alloy, or it may be made of other materials such as synthetic resin or wood.

[0062] As shown in Figure 15, when attaching the rear shelf 44 to the support body 41, the shelf board 44a of the rear shelf 44 is positioned in a nearly upright position, and the left and right claw flange portions 44b are inserted into the left and right engagement grooves 812 of the support body 41 from the rear side. They are then slid laterally inward to the left and right, aligning the screw insertion holes 813 of the support body 41 with the screw insertion holes 820 of the rear shelf 44. After that, the screws 906 are inserted into the screw insertion holes 813 from the rear side, then into the screw insertion holes 820, and screwed into the nuts fixed to the outer surface of the claw flange portions 44b to secure them.

[0063] As shown in Figure 16, the shelf 5 attached to the support column 3 below the display D comprises a shelf board 51, a shelf support column 52 for attaching the shelf board 51 to the support column 3, and a shelf fixing member 53 for the shelf support column 52. By providing the shelf board 51 at a height below the display D, electronic devices such as microphone speakers and cameras can be stored compactly. The shelf 5 may be made of metal such as steel or aluminum alloy, or it may be made of other materials such as synthetic resin or wood.

[0064] A connecting bracket 511 is fixed to the underside of the rectangular shelf board 51, supporting the shelf board 51 and connecting it to the shelf support column 52. The engaging portion 511a at the rear end of the connecting bracket 511 protrudes backward from the rear edge of the shelf board 51. The engaging portion 511a is open on its top, bottom, and rear sides, and has screw insertion holes 821 formed therein for inserting and fixing the shelf support column 52.

[0065] The shelf support column 52 extends vertically and has a roughly U-shaped cross-section with an open rear side. In the lower half, flange portions 52a are formed, which are bent inward to the left and right from the rear end of the side portion. Screw insertion holes 822 for fixing the engaging portion 51a of the shelf board 51 are formed in the lower part of the flange portion 52a. At the upper end of the shelf support column 52, a pair of left and right engaging claws 520 for engaging with the support column 3 are formed, protruding backward from the rear end of the left and right side portions. In addition, two sets of left and right screw insertion holes 823 are formed at the upper end of the main surface portion 52c of the shelf support column 52, for connecting to the shelf fixing member 53.

[0066] As shown in Figures 13 and 16(B)(C), the shelf fixing member 53 comprises a main surface portion 53c arranged in the front-rear direction in an upright position, claw flange portions 53a protruding outward to the left and right from the central part of the rear edge of the main surface portion 53c, and two upper and lower claw flange portions 53b protruding outward to the left and right from the upper and lower ends of the front edge of the main surface portion 53c. The claw flange portion 53a has a screw insertion hole 824 formed therein for inserting and fixing to the support column 3. The two claw flange portions 53b have screw insertion holes 825 formed therein for connecting to the shelf support column 52.

[0067] As shown in Figures 16(A) and (B), when attaching the shelf board 51 to the shelf support 52, insert the shelf support 52 into the engaging portion 51a of the shelf board 51 so that the screw insertion hole 821 of the shelf board 51 and the screw insertion hole 822 of the shelf support 52 overlap. Then, insert the screw 907 through the screw insertion hole 821, and then screw it into the screw insertion hole 822 to secure it.

[0068] As shown in Figures 13 and 16(B)(C), when attaching the shelf fixing member 53 to the support column 3, first, select the shelf fixing engagement hole 313 and screw insertion hole 807 of the support column 3 to be used according to the size of the display D. Insert the claw flange portions 53a of the two shelf fixing members 53 into the same shelf fixing engagement hole 313 so that they face outwards to the left and right of each other, and position them on the back side of the inner frame 311 of the support column 3. Align the screw insertion hole 807 of the inner frame 311 with the screw insertion hole 824 of the shelf fixing member 53, insert the screw 908 from the front side into the screw insertion hole 807, and then screw it into the screw insertion hole 824 to fix it in place. The left and right shelf fixing members 53 are fixed to the inner frame 311 with a gap between them, with the claw flange portions 53b facing outwards to the left and right.

[0069] As shown in Figures 16(C) and (D), when connecting the shelf support 52 to which the shelf board 51 is attached and the support column 3 to which the shelf fixing member 53 is attached, the left and right engaging claws 52b of the shelf support 52 are inserted into the left and right inner engaging grooves 312a of the support column 3 and pushed downward to engage, so that the screw insertion holes 825 of the shelf fixing member 53 and the screw insertion holes 823 of the shelf support 52 are aligned and overlap. Then, the screws 909 are inserted through the screw insertion holes 823 and then screwed into the screw insertion holes 825 to secure them. The shelf support 52 is positioned along the front of the support column 3. At this time, the shelf board 51 is adjusted to be horizontal.

[0070] Here, when the left and right engaging claws 52b of the shelf support 52 are engaged with the left and right inner engaging grooves 312a located diagonally above the shelf fixing member 53 attached to the inner frame 311 of the support column 3, the screw insertion holes 823 of the shelf support 52 align with the screw insertion holes 825 of the shelf fixing member 53. This configuration, in which the engaging claws 52b of the shelf support 52 are engaged with the inner engaging grooves 312a near the shelf fixing member 53, is user-friendly because it allows for the intuitive selection of the inner engaging groove 312a into which the engaging claws 52b of the shelf support 52 should be inserted from among the multiple inner engaging grooves 312a arranged vertically.

[0071] <Second Embodiment> A second embodiment will now be described. The second embodiment is a free-standing type display stand in which an extension base 6 and a rear cover 7 are attached to the display stand of the first embodiment. Points that are common to the first embodiment will not be explained.

[0072] As shown in Figures 17 to 22, the extension base 6 is rectangular in plan view and comprises an extension base body 61 and an extension base cover 62 that covers the upper surface of the extension base body 61.

[0073] As shown in Figures 17-19 and 21, the extension base body 61 comprises two left and right engaging frames 611 and 612 that extend forward from the left and right edges of the rear frame 610, which extends in the left and right direction behind the base 2. The extension base body 61 may be made of metal such as steel or aluminum alloy, or it may be made of other materials such as synthetic resin or wood.

[0074] The rear frame 610 has an upward-opening U-shaped channel (groove) form. The rear frame 610, which extends in the left-right direction, has a bottom portion 610a located on the bottom side (installation surface F side) of the rear of the extension base body 61, a rear portion 610b located on the back side (outside the extension base body 61), and a front portion 610c located on the front side (inside the extension base body 61). Screw insertion holes 826 are formed on the left and right edges of the bottom portion 610a for attaching the two rear leg portions 23 that have been removed from the beams 212 and 213 of the base body 21. The rear portion 610b has a pair of left and right screw insertion holes 827 for screwing and fixing the rear of the extension base cover 62.

[0075] The engaging frames 611 and 612 have an upward-opening U-shaped channel (groove) form. The engaging frames 611 and 612, which extend in the front-rear direction, have bottom portions 611a and 612a located on the bottom side (installation surface F side) of the extension base body 61, and left and right side portions 611b and 612b. The engaging frames 611 and 612 are located on the rearward extension line of the beams 212 and 213 of the base body 21 and the support fixing portion 216, and the rear ends of the engaging frames 611 and 612 are fixed to the bottom portion 610a and front portion 610c of the rear frame 610.

[0076] Metal engaging members 613 and 614, which have a downward-opening U-shaped channel (groove) form, are fitted and fixed to the engaging frames 611 and 612 from the front end to the rear end. Two screw insertion holes 828 are formed at the front and rear of the upper portions 613a and 614a located on the upper side of the engaging members 613 and 614 for connecting to the beams 212 and 213 of the base body 21. A space Q (see Figure 21) is formed between the bottom portions 611a and 612a of the engaging frames 611 and 612 and the upper portions 613a and 614a of the engaging members 613 and 614. The method for fixing the engaging frames 611 and 612 to the rear frame 610, and the method for fixing the engaging members 613 and 614 to the engaging frames 611 and 612, is, for example, welding, but is not limited to this, and other fixing methods such as screwing or riveting may also be used.

[0077] The extension base cover 62, which constitutes the rear surface (top surface) of base 2, is rectangular in plan view and is integrally formed by a roughly trapezoidal central inclined portion 62a that widens from above the trapezoidal upper edge of the rear surface portion 211c of the base body 21 toward the upper edge of the rear surface portion 610b of the extension base body 61 in a forward-high, backward-low posture, and left and right inclined portions 62b that narrow from above the trapezoidal left and right inclined sides of the rear surface portion 211c of the base body 21 toward the left and right rear corners of the central inclined portion 62a. The extension base cover 62 may be made of, for example, a metal plate, or of other materials such as synthetic resin or wood.

[0078] The front edge of the extension base cover 62 is positioned along the rear end of the base cover 22. Furthermore, the portions of the central inclined portion 62a of the extension base cover 62 near the left and right edges on the back surface are supported in contact with the upper end surfaces of the rear half of the left and right outer side portions 611b, 612b of the engaging frames 611, 612 (the portion between the base body 21 and the rear frame 610 of the extension base body 60) in a front-high, rear-low posture.

[0079] On the rear side of the central inclined portion 62a of the extension base cover 62, approximately L-shaped engaging claws 620 are provided projecting downwards at two locations on the left and right of the front (front) side, for engaging with the lower surface of the bottom portion 610a of the rear frame 610 of the extension base body 61. Since the engaging claws 620 engage with the rear lower surface of the extension base body 61, upward movement of the front of the extension base cover 62 can be restricted without forming an engaging hole in the rear surface 610b of the extension base body 61. On the rear edge of the rear side of the central inclined portion 62a, a pair of left and right L-shaped brackets 621 are provided, each with a screw insertion hole 829 for screw fastening into a screw insertion hole 827 of the rear frame 610 of the extension base body 61.

[0080] As shown in Figures 19 and 20, when attaching the extension base body 61 to the base body 21, first remove the rear leg portion 23 that is screwed into the beams 212 and 213 on the back side of the base body 21. Next, place the extension base body 61 on top of the base body 21 so that the rear portion of the beams 212 and 213 of the base body 21 fits into the front portion of the engagement frames 611 and 612 of the extension base body 61. The front and rear screw insertion holes 830 formed in the bottom surfaces 212a and 213a of the beams 212 and 213 of the base body 21 are aligned with the front and rear screw insertion holes 828 formed in the upper surfaces 613a and 614a of the engaging members 613 and 614 of the extension base body 61. The screws 910 are then inserted through the screw insertion holes 830 from the top side of the base body 21 towards the bottom side (installation surface F side), and then through the screw insertion holes 828, and screwed into the nuts fixed to the lower surfaces of the upper surfaces 613a and 614a of the engaging members 613 and 614 to secure them.

[0081] In this way, since the screw 910 connecting the base body 21 and the extension base body 61 can be screwed in from the top side, the base body 21 and the extension base body 61 can be easily connected without having to turn the base body 21 upside down, making it user-friendly. In addition, the screw 910 is covered by the base cover 22 and is not exposed to the outside, so it looks good.

[0082] As shown in Figures 19 and 20, when attaching the extension base cover 62 to the extension base body 61, first insert the left and right engaging claws 620 of the extension base cover 62 into the rear lower surface of the base body 21, and align the screw insertion hole 829 of the extension base cover 62 with the screw insertion hole 827 of the extension base body 61. At this time, the outer upper ends of the side portions 611b and 612b of the extension base body 61 abut against and support the back surface of the extension base cover 62. Then, insert the hand-tightened screw 912 from the rear (rear back side) towards the rear (front front side) into the screw insertion hole 829, then into the screw insertion hole 827, and screw it into the nut fixed to the rear surface of the rear portion 610b of the rear frame 610 to secure it.

[0083] By attaching the extension base body 61, the display stand can be stably installed even when it is not possible to install it close to a wall. In addition, the contact area of ​​the base 2 with the installation surface F is increased, making it less likely to tip over. Furthermore, since the extension base body 61 is designed to be easily attached or detached, the specifications can be changed as needed to suit the installation location of the display stand. Note that it is also acceptable to install the display stand close to a wall even with the extension base body 61 attached.

[0084] As shown in Figure 22, a rear cover 7 can be attached to the support 4 to cover the back side. The rear cover 7 covers the back of the support 4 (support body 41) to conceal the rear shelf 44, wiring, etc. The side plate 7b of the U-shaped rear cover 7 has an engaging portion 71 that engages with the upper flange portion 410a of the support body 41, and a recess 72 for fixing to a screw insertion hole 831 formed in the lower flange portion 410b of the support body 41. In addition, the side plate 7b of the rear cover 7 is provided with an opening 73 for passing wiring, etc. The rear cover 7 may be made of synthetic resin such as plastic, or it may be made of other materials such as wood or metal.

[0085] As shown in Figure 22, when attaching the back cover 7 to the support body 41, engage the engaging portion 71 of the back cover 7 with the upper flange portion 410a of the support body 41, and align the screw insertion hole 831 formed in the lower flange portion of the support body 41 with the recess 72 formed in the back cover 7. Then, insert the hand screw 911 upward from the installation surface F side into the recess 72, and then insert it into the screw insertion hole 831 and screw it in to secure it.

[0086] By attaching the rear cover 7, the rear shelf 44 and wiring can be concealed, improving the appearance of the back and sides of the display stand. In addition, attaching the rear cover 7 prevents electronic devices and other items placed on the rear shelf 44 from falling.

[0087] Although embodiments and modifications have been described above, the configurations, arrangements, numerical values, materials, etc. in the embodiments are merely examples, and the present invention can be embodied in various forms, not limited to the embodiments described above. The configuration of each part is not limited to the illustrated embodiments, and various modifications are possible without departing from the spirit of the present invention. For example, the configurations described in the embodiments and modifications (in the notes, etc.) described above may be combined, and the configurations can be added, omitted, replaced, or otherwise modified.

[0088] For example, the number of front legs 24 and rear legs 23 of the base 2 can be changed as appropriate. The same legs as the front legs 24 may be provided on the rear underside of the base body 21 (where the rear legs 23 are provided). The front legs 24 may also be provided in a height-adjustable manner. The front surface 24a of the front legs 24 may not be inclined with respect to the installation surface F. The front legs 24 may also be positioned on the underside of the base body 21, closer to the left-right center. The length of the support column 3 and the number of engagement grooves on the support column 3 can also be changed as appropriate. The base body 21 may be fixed to the installation surface F with screws or the like, or the support 4 may be fixed to the wall surface W with screws or the like. [Explanation of Symbols]

[0089] 2 bases 21 Base Unit 22 Base Cover 23 Hind leg 24 Front leg 24a front 3 pillars 4 Support 5 shelves 6 Extension base 7. Back cover F Installation surface W Wall D Display

Claims

1. A base that is installed on the mounting surface, A support column erected on the aforementioned base, The system comprises a support provided at the top of the aforementioned support column for supporting a display, The base is positioned with the front side of the display attached to the support facing forward. A rear leg portion is provided that protrudes downward from the rear side of the base, The base includes a front leg portion that protrudes downward from the back surface of the front part of the base and has higher sliding properties than the rear leg portion. Display stand.

2. The front surface of the front leg is inclined so that it moves further away from the mounting surface towards the front. The display stand according to claim 1.

3. The front legs are provided at least on both the left and right corners of the underside of the front part of the base. The display stand according to claim 1 or 2.

4. The aforementioned rear leg section is height-adjustable. The display stand according to claim 1 or 2.

5. The aforementioned support column is erected at the rear of the base. The display stand according to claim 1 or 2.

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