JP6985205B2

JP6985205B2 - Display device pedestal

Info

Publication number: JP6985205B2
Application number: JP2018079385A
Authority: JP
Inventors: 尋基櫻田
Original assignee: TVS Regza Corp
Current assignee: TVS Regza Corp
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2021-12-22
Anticipated expiration: 2038-04-17
Also published as: JP2019184983A

Description

本発明の実施形態は，表示装置用台座に関する。 An embodiment of the present invention relates to a pedestal for a display device.

テレビ等の表示装置は、視聴方向に合わせて、左右に向きを調節（首振り：スイーベル）できることが好ましい。このため、例えば、テレビ用のスタンドにスイーベル機能を持たすことが考えられる。
ここで、大型の、比較的重量の大きい表示装置の向きを調節するには、ボールベアリングなど、ボールの転がりを用いた軸受機構を用いるのが通例である。
しかしながら、ボールベアリングなどの軸受は、固定部と回転部の間にボールを挟みこまねばならず、構造が複雑になり、かつある程度の厚みが必要となる。
一方、近年は、コスト削減のため、スイーベル機能を持たないテレビ用のスタンドが多くなってきている。 It is preferable that the display device such as a television can be adjusted to the left and right (swing: swivel) according to the viewing direction. Therefore, for example, it is conceivable that the stand for a television has a swivel function.
Here, in order to adjust the orientation of a large, relatively heavy display device, it is customary to use a bearing mechanism that uses ball rolling, such as a ball bearing.
However, in a bearing such as a ball bearing, the ball must be sandwiched between the fixed portion and the rotating portion, the structure becomes complicated, and a certain thickness is required.
On the other hand, in recent years, in order to reduce costs, the number of TV stands that do not have a swivel function is increasing.

登録実用新案第３０８８２２号公報Registered Utility Model No. 308822

本発明は，表示装置を載置した状態で、容易に回転できる薄型の表示装置用台座を提供することを目的とする。 An object of the present invention is to provide a thin display device pedestal that can be easily rotated with the display device mounted.

実施形態に係る表示装置用台座は、第１、第２の板部材、回転機構、第１、第２の領域を有する。第１の板部材は、表示装置を載置する。第２の板部材は、第１の板部材の下方に配置される。回転機構は、第１の板部材を第２の板部材に回転可能に保持する。第１の領域は、第１の板部材の下面の一部に配置され、下面の他の領域の少なくとも一部より摩擦抵抗が小さい。第２の領域は、第２の板部材の上面の少なくとも一部に第１の領域と対応して配置され、第１の領域より凸凹が大きい。 The display device pedestal according to the embodiment has first and second plate members, a rotation mechanism, and first and second regions. The display device is placed on the first plate member. The second plate member is arranged below the first plate member. The rotation mechanism rotatably holds the first plate member to the second plate member. The first region is located on a portion of the lower surface of the first plate member and has less frictional resistance than at least a portion of the other regions on the lower surface. The second region is arranged on at least a part of the upper surface of the second plate member so as to correspond to the first region, and has a larger unevenness than the first region.

実施形態に係る表示装置１０および表示装置用台座２０を表す斜視図である。It is a perspective view which shows the display device 10 and the display device pedestal 20 which concerns on embodiment. 表示装置用台座２０を分解した状態を上方から見た分解斜視図である。It is an exploded perspective view which looked at the state which disassembled the pedestal 20 for a display device from above. 表示装置用台座２０を分解した状態を下方から見た分解斜視図である。It is an exploded perspective view which looked at the state which disassembled the pedestal 20 for a display device from the bottom. 表示装置用台座２０を上方から見た状態を表す上面図である。It is a top view which shows the state which the pedestal 20 for a display device was seen from above. 表示装置用台座２０を上方から見た状態を表す上面図である。It is a top view which shows the state which the pedestal 20 for a display device was seen from above. 表示装置用台座２０を上方から見た状態を表す上面図である。It is a top view which shows the state which the pedestal 20 for a display device was seen from above. 表示装置用台座２０を下方から見た状態を表す下面図である。It is a bottom view which shows the state which the pedestal 20 for a display device is seen from the bottom. 基板２１を上方から見た状態を表す上面図である。It is a top view which shows the state which the substrate 21 was seen from above. 基板２２を上方から見た状態を表す上面図である。It is a top view which shows the state which the substrate 22 was seen from above. 表示装置用台座２０を図３Ａの線ａ−ａで切断した状態を表す断面図である。FIG. 3 is a cross-sectional view showing a state in which the display device pedestal 20 is cut along the line aa of FIG. 3A. 表示装置用台座２０を図３Ａの線ｂ−ｂで切断した状態を表す断面図である。FIG. 3 is a cross-sectional view showing a state in which the pedestal 20 for a display device is cut along the line bb of FIG. 3A. 回転機構２３を分解した状態を上方から見た分解斜視図である。It is an exploded perspective view which looked at the state which disassembled the rotation mechanism 23 from above. 回転機構２３を上方から見た状態を表す上面図である。It is a top view which shows the state which the rotation mechanism 23 was seen from above. 回転機構２３を上方から見た状態を表す上面図である。It is a top view which shows the state which the rotation mechanism 23 was seen from above. 回転機構２３を上方から見た状態を表す上面図である。It is a top view which shows the state which the rotation mechanism 23 was seen from above. 表示装置用台座２０を図３Ａの線ｃ−ｃで切断した状態を表す断面図である。FIG. 3 is a cross-sectional view showing a state in which the pedestal 20 for a display device is cut along the line cc of FIG. 3A. 基板２１から表示装置固定機構２７を取り外した状態を表す分解斜視図である。FIG. 3 is an exploded perspective view showing a state in which the display device fixing mechanism 27 is removed from the substrate 21. 変形例１に係る表示装置用台座２０を分解した状態を上方から見た分解斜視図である。It is an exploded perspective view which looked at the state which disassembled the display device pedestal 20 which concerns on modification 1 from above. 変形例２に係る表示装置用台座２０を上方から見た状態を表す上面図である。FIG. 3 is a top view showing a state in which the display device pedestal 20 according to the second modification is viewed from above. 変形例３に係る表示装置用台座２０を上方から見た状態を表す上面図である。FIG. 3 is a top view showing a state in which the display device pedestal 20 according to the modified example 3 is viewed from above.

以下，図面を参照して，実施形態を詳細に説明する。
図１は、実施形態に係る表示装置１０および表示装置用台座２０を表す斜視図である。図２Ａ，図２Ｂはそれぞれ、表示装置用台座２０を分解した状態を上方および下方から見た分解斜視図である。図３（図３Ａ〜図３Ｃ），および図４はそれぞれ、表示装置用台座２０を上方および下方から見た上面図および下面図である。なお、図３は後述の蓋Ｃ１を外した状態であり、この内、図３Ｂ，図３Ｃは、後述の基板２１を基板２２に対して左右に回転した状態を示している。 Hereinafter, embodiments will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a display device 10 and a display device pedestal 20 according to an embodiment. 2A and 2B are exploded perspective views of the display device pedestal 20 as viewed from above and below, respectively. 3 (FIGS. 3A to 3C) and FIG. 4 are top and bottom views of the display device pedestal 20 as viewed from above and below, respectively. Note that FIG. 3 shows a state in which the lid C1 described later is removed, and FIGS. 3B and 3C show a state in which the substrate 21 described later is rotated left and right with respect to the substrate 22.

図１に示すように、表示装置１０の正面側の方向Ｆ（表示素子１３の画面を視認できる方向）を前方Ｆとし、背面側の方向Ｂ（方向Ｆと逆方向）を後方Ｂとする。 As shown in FIG. 1, the direction F on the front side of the display device 10 (the direction in which the screen of the display element 13 can be visually recognized) is the front F, and the direction B on the back side (the direction opposite to the direction F) is the rear B.

表示装置１０が表示装置用台座２０に載置されている。表示装置１０は、表示装置本体１１、スタンド１２を有する。表示装置本体１１がスタンド１２を介して、表示装置用台座２０に載置される。 The display device 10 is mounted on the display device pedestal 20. The display device 10 has a display device main body 11 and a stand 12. The display device main body 11 is placed on the display device pedestal 20 via the stand 12.

表示装置本体１１は、例えば、平面型の表示装置（テレビ等）であり、スタンド１２上に垂直に近い状態（略正立）で設置される。表示装置本体１１は、比較的大型（例えば、５０インチサイズ）のものを利用できる。表示装置本体１１は、ベゼル１３，表示素子１４を有する。ベゼル１３は、表示装置本体１１のケースである。表示素子１４は、薄型の表示素子、例えば、液晶ディスプレイ、エレクトロ・ルミネッセント（ＥＬ）ディスプレイである。 The display device main body 11 is, for example, a flat display device (television or the like), and is installed on the stand 12 in a nearly vertical state (substantially upright). As the display device main body 11, a relatively large display device (for example, 50 inch size) can be used. The display device main body 11 has a bezel 13 and a display element 14. The bezel 13 is a case of the display device main body 11. The display element 14 is a thin display element, for example, a liquid crystal display or an electroluminescent (EL) display.

表示装置用台座２０は、表示装置１０を載置した状態で、表示装置１０の左右の向きを調節できる。表示装置用台座２０は、基板２１，２２，回転機構２３，潤滑テープ２４，凸凹テープ２５，脚部２６，表示装置固定機構２７，台座固定機構２８（後述の貫通孔Ｈ４）を有する。 The display device pedestal 20 can adjust the left-right orientation of the display device 10 with the display device 10 mounted. The display device pedestal 20 has a substrate 21, 22, a rotation mechanism 23, a lubricating tape 24, an uneven tape 25, legs 26, a display device fixing mechanism 27, and a pedestal fixing mechanism 28 (through hole H4 described later).

図５Ａ，図５Ｂはそれぞれ、基板２１，２２を上面から見た上面図である。
基板２１，２２は、左右に長い略矩形状の平板である。基板２１は、表示装置１０を載置するための第１の板部材として機能する。基板２２は、第１の板部材の下方に配置される第２の板部材として機能する。 5A and 5B are top views of the substrates 21 and 22, respectively, as viewed from above.
The substrates 21 and 22 are substantially rectangular flat plates that are long on the left and right. The substrate 21 functions as a first plate member on which the display device 10 is placed. The substrate 22 functions as a second plate member arranged below the first plate member.

基板２１，２２は、例えば、ガラス、プラスチック、金属から構成できる。この内、ガラスを用いると、高級感が醸し出され、好ましい。
基板２１，２２は、比較的大型（例えば、５０インチサイズ）の表示装置１０を載置できる、例えば、左右に５６０ｍｍ、前後に２８０ｍｍ程度の大きさを有する。
基板２１，２２は比較的大型の表示装置１０の重量に耐えるよう数ｍｍ程度の厚さを有する。例えば、基板２１，２２をガラスで構成したとき、５〜１０ｍｍ程度の厚さ（例えば、８ｍｍ）とできる。
また、基板２１、２２が設置された際には、基板２１、２２の間に、例えば、約０．４ｍｍの隙間を有する。 The substrates 21 and 22 can be made of, for example, glass, plastic, or metal. Of these, the use of glass is preferable because it brings out a sense of quality.
The boards 21 and 22 have a size of, for example, 560 mm on the left and right and 280 mm on the front and back on which a relatively large (for example, 50 inch size) display device 10 can be placed.
The substrates 21 and 22 have a thickness of about several mm so as to withstand the weight of the relatively large display device 10. For example, when the substrates 21 and 22 are made of glass, the thickness can be about 5 to 10 mm (for example, 8 mm).
Further, when the substrates 21 and 22 are installed, there is a gap of, for example, about 0.4 mm between the substrates 21 and 22.

基板２１，２２は、例えば、不透明な無彩色（白色、黒色）とできる。例えば、黒色にすることで、表示装置用台座２０が目立ちすぎず、落ち着いた雰囲気を出すことができる。一方、基板２１，２２を不透明な有彩色（赤、青、緑等）としてもよい。また、基板２１，２２を透明として、スケルトン感を出すことも可能である。 The substrates 21 and 22 can be, for example, an opaque achromatic color (white, black). For example, by making it black, the pedestal 20 for the display device does not stand out too much, and a calm atmosphere can be created. On the other hand, the substrates 21 and 22 may be opaque chromatic colors (red, blue, green, etc.). It is also possible to make the substrates 21 and 22 transparent to give a skeleton feeling.

基板２２は矩形であり、略直線状の四辺（前辺、後辺、右辺、左辺）を有する。基板２１は、前辺、右辺、左辺は基板２２とほぼ上下に一致する略直線状であるが、後辺２１Ａは基板２２の後辺２２Ａより前方に位置する円弧形状（回転の周方向に沿う円弧形状）を有する。なお、後辺２１Ａを円弧形状とする理由は後述する。 The substrate 22 is rectangular and has four substantially linear sides (front side, rear side, right side, and left side). The front side, the right side, and the left side of the board 21 have a substantially linear shape that substantially coincides with the board 22 at the top and bottom, but the rear side 21A has an arc shape (along the circumferential direction of rotation) located in front of the rear side 22A of the board 22. It has an arc shape). The reason why the rear side 21A has an arc shape will be described later.

基板２１は、上面に凹部Ｒ１，下面に凹部Ｒ２が配置される。凹部Ｒ１，Ｒ２は、有底の長穴であり、略楕円形状（より正確には、２つの円弧と２つの直線を組み合わせた形状）を有する。 The substrate 21 has a recess R1 on the upper surface and a recess R2 on the lower surface. The recesses R1 and R2 are bottomed elongated holes and have a substantially elliptical shape (more accurately, a shape in which two arcs and two straight lines are combined).

凹部Ｒ１、Ｒ２内に貫通孔Ｈ１、Ｈ２が配置される。
貫通孔Ｈ１、Ｈ２も長穴であり、略楕円形状（より正確には、２つの円弧と２つの直線を組み合わせた形状）を有する。貫通孔Ｈ１内に、回転中心Ｏが配置される。
凹部Ｒ１および貫通孔Ｈ１内に回転機構２３の一部（後述の穴部材３２および保持部材３３）が配置され、基板２１を基板２２に対して、回転中心Ｏを軸として、回転可能に保持する。
凹部Ｒ２および貫通孔Ｈ２内に表示装置固定機構２７が配置され、表示装置１０を基板２１に固定可能となる。 Through holes H1 and H2 are arranged in the recesses R1 and R2.
The through holes H1 and H2 are also elongated holes and have a substantially elliptical shape (more accurately, a shape combining two arcs and two straight lines). The rotation center O is arranged in the through hole H1.
A part of the rotation mechanism 23 (hole member 32 and holding member 33 described later) is arranged in the recess R1 and the through hole H1, and the substrate 21 is rotatably held with respect to the substrate 22 with the rotation center O as an axis. ..
The display device fixing mechanism 27 is arranged in the recess R2 and the through hole H2, and the display device 10 can be fixed to the substrate 21.

基板２２は、貫通孔Ｈ３、Ｈ４を有する。
貫通孔Ｈ３は、長穴であり、略楕円形状（より正確には、２つの円弧と２つの直線を組み合わせた形状）を有する。貫通孔Ｈ３は、基板２１の貫通孔Ｈ１と対向し、回転中心Ｏが配置される。
貫通孔Ｈ３に回転機構２３の一部（後述の軸部材３１）が配置され、基板２１を基板２２に対して、回転中心Ｏを軸として、回転可能に保持する。 The substrate 22 has through holes H3 and H4.
The through hole H3 is an elongated hole and has a substantially elliptical shape (more accurately, a shape that combines two arcs and two straight lines). The through hole H3 faces the through hole H1 of the substrate 21, and the rotation center O is arranged.
A part of the rotation mechanism 23 (shaft member 31 described later) is arranged in the through hole H3, and the substrate 21 is rotatably held with respect to the substrate 22 with the rotation center O as an axis.

貫通孔Ｈ４は、台座取り付け用のロープを取り付け可能であり、台座固定機構２８（表示装置用台座を固定するための台座固定部）として機能する。
既述のように、基板２１の後辺２１Ａは基板２２の後辺２２Ａより前方に位置する円弧形状を有する。この結果、図３Ａ〜図３Ｃに示すように、基板２１を基板２２に対して回転させても、台座固定機構２８（貫通孔Ｈ４）が露出した状態となる。そのため、デザイン性を確保しつつ、台座固定機構２８の機能を損なわずに、スイーベル機能も確保することができる。 The through hole H4 can be attached with a rope for attaching a pedestal, and functions as a pedestal fixing mechanism 28 (a pedestal fixing portion for fixing the pedestal for a display device).
As described above, the rear side 21A of the substrate 21 has an arc shape located in front of the rear side 22A of the substrate 22. As a result, as shown in FIGS. 3A to 3C, even if the substrate 21 is rotated with respect to the substrate 22, the pedestal fixing mechanism 28 (through hole H4) is exposed. Therefore, it is possible to secure the swivel function without impairing the function of the pedestal fixing mechanism 28 while ensuring the design.

ここでは、後辺２１Ａの円弧は、回転中心Ｏを中心とする円ではない。すなわち、後辺２１Ａの曲率半径は、回転中心Ｏを中心とする円の半径よりも、大きい。このため、基板２１の回転角度を大きくすれば、貫通孔Ｈ４は基板２１の下に隠れることになる。しかしながら、後述のように回転機構２３は回転角度を±θ（例えば、±２０°）の範囲に制限する回転範囲制限機構を有する。このため、この角度範囲で、貫通孔Ｈ４が露出していれば足りる。 Here, the arc of the rear side 21A is not a circle centered on the center of rotation O. That is, the radius of curvature of the rear side 21A is larger than the radius of the circle centered on the center of rotation O. Therefore, if the rotation angle of the substrate 21 is increased, the through hole H4 is hidden under the substrate 21. However, as will be described later, the rotation mechanism 23 has a rotation range limiting mechanism that limits the rotation angle to a range of ± θ (for example, ± 20 °). Therefore, it is sufficient if the through hole H4 is exposed in this angle range.

基板２１の下面に潤滑テープ２４（第１のシート部材）が配置される。４つの矩形状の潤滑テープ２４が、基板２１の四辺（前辺、後辺、右辺、左辺）に沿って配置される。潤滑テープ２４は、基板２１（第１の板部材）の下面の一部に配置され、下面の他の領域の少なくとも一部より摩擦抵抗が小さい第１の領域に対応する。 A lubricating tape 24 (first sheet member) is arranged on the lower surface of the substrate 21. The four rectangular lubricating tapes 24 are arranged along the four sides (front side, rear side, right side, left side) of the substrate 21. The lubricating tape 24 is arranged on a part of the lower surface of the substrate 21 (first plate member) and corresponds to the first region where the frictional resistance is smaller than at least a part of the other regions on the lower surface.

潤滑テープ２４は、基板２１よりも摩擦係数が小さい。潤滑テープ２４は、プラスチック材料のシート（膜）から構成できる。例えば、フッ素樹脂（一例として、PTFE（4フッ化エチレン樹脂）や超高分子量ポリエチレンの膜を潤滑テープ２４として用いることができる。潤滑テープ２４は、例えば、粘着剤によって基板２１に固定される。
潤滑テープ２４は、例えば、０．０５〜０．５ｍｍ程度の厚さを有する。 The lubricating tape 24 has a smaller coefficient of friction than the substrate 21. The lubricating tape 24 can be made of a sheet (membrane) of a plastic material. For example, a fluororesin (as an example, a film of PTFE (tetrafluoroethylene resin) or ultra-high molecular weight polyethylene can be used as the lubricating tape 24. The lubricating tape 24 is fixed to the substrate 21 by, for example, an adhesive.
The lubricating tape 24 has a thickness of, for example, about 0.05 to 0.5 mm.

基板２２の上面に潤滑テープ２４に対応して凸凹テープ２５（第２のシート部材）が配置される。４つの矩形状の凸凹テープ２５が、基板２２の四辺（前辺、後辺、右辺、左辺）に沿って配置される。凸凹テープ２５は、基板２２（第２の板部材）の上面の少なくとも一部に、潤滑テープ２４（第１の領域）と対応して配置され、第１の領域より凸凹が大きい第２の領域に対応する。 An uneven tape 25 (second sheet member) is arranged on the upper surface of the substrate 22 corresponding to the lubricating tape 24. The four rectangular uneven tapes 25 are arranged along the four sides (front side, rear side, right side, left side) of the substrate 22. The uneven tape 25 is arranged on at least a part of the upper surface of the substrate 22 (second plate member) so as to correspond to the lubricating tape 24 (first region), and is a second region having larger unevenness than the first region. Corresponds to.

凸凹テープ２５は、潤滑テープ２４より凹凸（表面粗さ）が大きい。すなわち、潤滑テープ２４の表面が平坦であるのに対して、凸凹テープ２５の表面は凸凹を有する。このように、潤滑テープ２４と凸凹テープ２５は、前者が平滑（つるつる）、後者が凸凹の組み合わせとなっている。潤滑テープ２４より凸凹テープ２５の方が摩擦係数が大きいということが言える。これは、基板２１の滑らかな回転を確保するためである。仮に潤滑テープ２４と凸凹テープ２５の両者共に平滑（実質的に凸凹が無い）であると、両者が真空状態で密着して、却って回転を阻害する可能性がある。
なお、潤滑テープ２４、凸凹テープ２５の両者に凸凹を付与しても、真空状態で密着することは防止できるが、両者間の摩擦抵抗が大きくなり、スムーズな回転ができず好ましくない。 The uneven tape 25 has a larger unevenness (surface roughness) than the lubricating tape 24. That is, the surface of the lubricating tape 24 is flat, whereas the surface of the uneven tape 25 has irregularities. As described above, the lubricating tape 24 and the uneven tape 25 are a combination of the former being smooth (smooth) and the latter being uneven. It can be said that the uneven tape 25 has a larger coefficient of friction than the lubricating tape 24. This is to ensure smooth rotation of the substrate 21. If both the lubricating tape 24 and the uneven tape 25 are smooth (substantially free from unevenness), they may come into close contact with each other in a vacuum state and rather hinder rotation.
Even if unevenness is applied to both the lubricating tape 24 and the uneven tape 25, it is possible to prevent them from coming into close contact with each other in a vacuum state, but the frictional resistance between the two becomes large and smooth rotation cannot be performed, which is not preferable.

この凸凹は、いわゆるシボ加工、エンボス加工によって形成できる。凸凹テープ２５は、プラスチック材料のシート（膜）から構成できる。例えば、凸凹を有する金型を用いてプラスチックを射出成形することで、凸凹を有するシートを作成できる。 This unevenness can be formed by so-called embossing or embossing. The uneven tape 25 can be made of a sheet (film) of a plastic material. For example, a sheet having irregularities can be produced by injection molding plastic using a mold having irregularities.

凸凹テープ２５の凹部と凸部の高さの差（段差）がある程度（例えば、０．０５ｍｍ）以上であることが好ましい。段差が小さすぎると、潤滑テープ２４と凸凹テープ２５の間に真空状態の箇所が生じた場合、大気が流入し難く、好ましくない。 It is preferable that the height difference (step) between the concave portion and the convex portion of the uneven tape 25 is to some extent (for example, 0.05 mm) or more. If the step is too small, if a vacuum state is generated between the lubricating tape 24 and the uneven tape 25, it is difficult for the atmosphere to flow in, which is not preferable.

凸凹テープ２５は、凸部の面積（比）が凹部に比べて大きいことが好ましい。凸部の面積比が小さくなりすぎると、凸部に応力が集中し、摩擦抵抗が大きくなり、回転しづらくなる。また、潤滑テープ２４の局所に応力が集中し、局所的に摩耗し易くなる。凸部の面積比（＝凸部の面積／凸凹テープ２５の面積）が、７０％以上（さらに好ましくは、８０％以上）であることが好ましい。 It is preferable that the uneven tape 25 has a larger area (ratio) of the convex portion than the concave portion. If the area ratio of the convex portion becomes too small, stress is concentrated on the convex portion, frictional resistance increases, and it becomes difficult to rotate. In addition, stress is concentrated locally on the lubricating tape 24, and it becomes easy to wear locally. The area ratio of the convex portion (= area of the convex portion / area of the uneven tape 25) is preferably 70% or more (more preferably 80% or more).

また、凸凹テープ２５は、凹部が分散せず、ある程度連結されていることが好ましい。例えば、凹部が点在すると、潤滑テープ２４と凸凹テープ２５の間に真空状態の箇所が生じた場合、大気が流入し難く、好ましくない。この観点からすると、凸凹テープ２５は、例えば、細長い溝が縦横に形成、交差する形状とすることができる。
このように、凹部を溝形状としたとき、溝の幅はある程度（例えば、２０μｍ〜５０μｍ）以上であることが好ましい。溝の幅が小さすぎると、潤滑テープ２４と凸凹テープ２５の間に真空状態の箇所が生じた場合、大気が流入し難く、好ましくない。 Further, it is preferable that the uneven tape 25 is connected to some extent without the concave portions being dispersed. For example, if the concave portions are scattered, if a vacuum state portion is generated between the lubricating tape 24 and the uneven tape 25, it is difficult for the atmosphere to flow in, which is not preferable. From this point of view, the uneven tape 25 can have, for example, a shape in which elongated grooves are formed and intersect in the vertical and horizontal directions.
As described above, when the concave portion has a groove shape, the width of the groove is preferably a certain amount (for example, 20 μm to 50 μm) or more. If the width of the groove is too small, if a vacuum state portion is generated between the lubricating tape 24 and the uneven tape 25, it is difficult for the atmosphere to flow in, which is not preferable.

凸凹テープ２５は、基板２２よりも摩擦係数が小さいことが好ましい。このため、例えば、潤滑テープ２４と同様、フッ素樹脂（一例として、ＰＴＦＥ（４フッ化エチレン樹脂）や超高分子量ポリエチレンを凸凹テープ２５として用いることができる。但し、凸凹テープ２５は、潤滑テープ２４程には、摩擦係数が小さくなくてもよいので、潤滑テープ２４よりも広範な材料を用いることが可能である。 The uneven tape 25 preferably has a smaller coefficient of friction than the substrate 22. Therefore, for example, like the lubricating tape 24, a fluororesin (as an example, PTFE (tetrafluoroethylene resin) or ultra-high molecular weight polyethylene can be used as the uneven tape 25. However, the uneven tape 25 is the lubricating tape 24. Since the friction coefficient does not have to be small, it is possible to use a wider range of materials than the lubricating tape 24.

凸凹テープ２５の材料が潤滑テープ２４と同様の場合でも、凸凹があるため、一般に、凸凹テープ２５の摩擦係数は、平滑な潤滑テープ２４よりも大きい。
凸凹テープ２５は、例えば、０．１〜０．５ｍｍ程度の厚さを有する。凸凹テープ２５は、凸凹を有することから、潤滑テープ２４よりも厚いことが好ましい。 Even when the material of the uneven tape 25 is the same as that of the lubricating tape 24, the coefficient of friction of the uneven tape 25 is generally larger than that of the smooth lubricating tape 24 because of the unevenness.
The uneven tape 25 has a thickness of, for example, about 0.1 to 0.5 mm. Since the uneven tape 25 has irregularities, it is preferable that the uneven tape 25 is thicker than the lubricating tape 24.

図５Ａ，図５Ｂに示すように、潤滑テープ２４の回転周方向の長さＬ１，Ｌ２はそれぞれ、凸凹テープ２５の回転周方向の長さＬ３，Ｌ４よりも大きい。
長さＬ１、Ｌ２はそれぞれ、左右および前後に配置された潤滑テープ２４の長さである。長さＬ３、Ｌ４はそれぞれ、左右および前後に配置された凸凹テープ２５の長さである。
左右の潤滑テープ２４の長さＬ１は、回転中心Ｏからの距離に対応して、前後の潤滑テープ２４の長さＬ２より大きい。
左右の凸凹テープ２５の長さＬ３は、前後の凸凹テープ２５の長さＬ４とほぼ同一としている。なお、回転中心Ｏからの距離に対応して、長さＬ３を長さＬ４より大きくしてもよい。 As shown in FIGS. 5A and 5B, the lengths L1 and L2 in the rotation circumferential direction of the lubricating tape 24 are larger than the rotation circumferential lengths L3 and L4 of the uneven tape 25, respectively.
The lengths L1 and L2 are the lengths of the lubricating tapes 24 arranged on the left and right and front and back, respectively. The lengths L3 and L4 are the lengths of the uneven tapes 25 arranged on the left and right and front and back, respectively.
The length L1 of the left and right lubricating tapes 24 is larger than the length L2 of the front and rear lubricating tapes 24, corresponding to the distance from the center of rotation O.
The length L3 of the left and right uneven tape 25 is substantially the same as the length L4 of the front and rear uneven tape 25. The length L3 may be larger than the length L4 according to the distance from the rotation center O.

図３Ａ〜図３Ｃに示すように、基板２１が回転すると、潤滑テープ２４上を凸凹テープ２５が滑りながら相対的に移動する。
ここでは、潤滑テープ２４の長さＬ１，Ｌ２を大きくすることで、回転時に潤滑テープ２４が局所的に摩耗することを防止し、長寿命化を図っている。仮に、潤滑テープ２４の長さＬ１，Ｌ２を凸凹テープ２５の長さＬ３，Ｌ４より小さくすると、基板２１の回転時に、狹面積の潤滑テープ２４全体が凸凹テープ２５によって常時擦られることになり、潤滑テープ２４が摩耗し易くなる。すなわち、本実施形態では、長い潤滑テープ２４を用いることで、基板２１の回転時に潤滑テープ２４に加わる負荷を分散している。 As shown in FIGS. 3A to 3C, when the substrate 21 rotates, the uneven tape 25 slides and relatively moves on the lubricating tape 24.
Here, by increasing the lengths L1 and L2 of the lubricating tape 24, the lubricating tape 24 is prevented from being locally worn during rotation, and the life of the lubricating tape 24 is extended. If the lengths L1 and L2 of the lubricating tape 24 are made smaller than the lengths L3 and L4 of the uneven tape 25, the entire lubricating tape 24 having a ridge area will be constantly rubbed by the uneven tape 25 when the substrate 21 is rotated. The lubricating tape 24 is easily worn. That is, in the present embodiment, the load applied to the lubricating tape 24 when the substrate 21 is rotated is dispersed by using the long lubricating tape 24.

もう少し具体的に言うと、図３Ｃのように、基板２１が回転した状態では潤滑テープ２４（Ｌ１）の一端部が凸凹テープ２５（Ｌ３）に重なる。この状態から基板２１を逆方向に回転させていくと、潤滑テープ２４（Ｌ１）は一端部から他端部（一端部とは反対方向にある）に向かって凸凹テープ２５（Ｌ３）上をスライドし、回転が止まると潤滑テープ２４（Ｌ１）の他端部と凸凹テープ２５（Ｌ３）が重なった状態となる。そのため、潤滑テープ２４の長さＬ１の方が凸凹テープ２５の長さＬ３よりも長くすることが必要である。 More specifically, as shown in FIG. 3C, when the substrate 21 is rotated, one end of the lubricating tape 24 (L1) overlaps with the uneven tape 25 (L3). When the substrate 21 is rotated in the opposite direction from this state, the lubricating tape 24 (L1) slides on the uneven tape 25 (L3) from one end to the other (in the direction opposite to the one end). When the rotation is stopped, the other end of the lubricating tape 24 (L1) and the uneven tape 25 (L3) are overlapped with each other. Therefore, it is necessary that the length L1 of the lubricating tape 24 is longer than the length L3 of the uneven tape 25.

また、美観を重視し、基板２１の下面に長い潤滑テープ２４を配置し、基板２２の上面に短い凸凹テープ２５を配置している。このようにすることで、基板２１を回転したときに、基板２２の上面上に配置される凸凹テープ２５が露出しないようにしている。 Further, with an emphasis on aesthetics, a long lubricating tape 24 is arranged on the lower surface of the substrate 21, and a short uneven tape 25 is arranged on the upper surface of the substrate 22. By doing so, when the substrate 21 is rotated, the uneven tape 25 arranged on the upper surface of the substrate 22 is not exposed.

逆に、基板２１の下面に短い凸凹テープ２５を配置し、基板２２の上面に長い潤滑テープ２４を配置することも可能である。このようにすると、基板２１を回転したときに、基板２２の上面上に配置される潤滑テープ２４が露出し易くなるが、回転角がそれほど大きくなければ、露出は防止される。 On the contrary, it is also possible to arrange the short uneven tape 25 on the lower surface of the substrate 21 and the long lubricating tape 24 on the upper surface of the substrate 22. By doing so, when the substrate 21 is rotated, the lubricating tape 24 arranged on the upper surface of the substrate 22 is easily exposed, but if the rotation angle is not so large, the exposure is prevented.

なお、潤滑テープ２４が基板２２自体と見栄えが大きく変わらなければ、回転によって潤滑テープ２４が露出しても差し支えない。 As long as the appearance of the lubricating tape 24 does not significantly change from that of the substrate 22 itself, the lubricating tape 24 may be exposed by rotation.

一方、図５Ａ，図５Ｂに示すように、潤滑テープ２４の回転径方向の長さ（幅）Ｗ１，Ｗ２はそれぞれ、凸凹テープ２５の回転径方向の（幅）Ｗ３，Ｗ４よりも小さい。
幅Ｗ１、Ｗ２はそれぞれ、左右および前後に配置された潤滑テープ２４の幅である。幅Ｗ３、Ｗ４はそれぞれ、左右および前後に配置された凸凹テープ２５の幅である。
潤滑テープ２４の幅Ｗ１、Ｗ２はほぼ同一である。また、凸凹テープ２５の幅Ｗ３、Ｗ３はほぼ同一である。但し、幅Ｗ１、Ｗ２および幅Ｗ３、Ｗ４をそれぞれ異ならせてもよい。 On the other hand, as shown in FIGS. 5A and 5B, the radial lengths (widths) W1 and W2 of the lubricating tape 24 are smaller than the radial (widths) W3 and W4 of the uneven tape 25, respectively.
The widths W1 and W2 are the widths of the lubricating tapes 24 arranged on the left and right and front and back, respectively. The widths W3 and W4 are the widths of the uneven tapes 25 arranged on the left and right and front and back, respectively.
The widths W1 and W2 of the lubricating tape 24 are almost the same. Further, the widths W3 and W3 of the uneven tape 25 are almost the same. However, the widths W1 and W2 and the widths W3 and W4 may be different from each other.

ここでは、凸凹テープ２５の幅Ｗ３，Ｗ４を大きくすることで、回転時に潤滑テープ２４のいずれか幅方向全体に凸凹テープ２５が接触するようにしている。潤滑テープ２４のいずれかの幅方向全体に凸凹テープ２５が接触することで、基板２１の安定的な回転が図れる。 Here, by increasing the widths W3 and W4 of the uneven tape 25, the uneven tape 25 comes into contact with the entire width direction of the lubricating tape 24 during rotation. When the uneven tape 25 comes into contact with the entire width direction of any one of the lubricating tapes 24, stable rotation of the substrate 21 can be achieved.

図６Ａ、図６Ｂはそれぞれ、表示装置用台座２０を図３Ａの線ａ−ａおよびｂ−ｂで切断した状態を表す断面図である。また、図７は、回転機構２３を分解した状態を上方から見た分解斜視図である。図８Ａ〜図８Ｃは、回転機構２３を上方から見た状態を表す上面図である。なお、図８Ｂ，図８Ｃは、回転機構２３を左右に回転した状態を示している。 6A and 6B are cross-sectional views showing a state in which the display device pedestal 20 is cut along the lines aa and bb of FIG. 3A, respectively. Further, FIG. 7 is an exploded perspective view of the state in which the rotation mechanism 23 is disassembled as viewed from above. 8A to 8C are top views showing a state in which the rotation mechanism 23 is viewed from above. 8B and 8C show a state in which the rotation mechanism 23 is rotated left and right.

回転機構２３は、軸部材３１，穴部材３２，保持部材３３を有し、基板２１を基板２２に回転可能に保持する。軸部材３１，穴部材３２，保持部材３３は、例えば、金属板を板金加工することで形成できる。
ここでは、軸部材３１を基板２２側（貫通孔Ｈ３内）に、穴部材３２，保持部材３３を基板２１側（貫通孔Ｈ１内）に配置しているが、この逆に軸部材３１を基板２１側に、穴部材３２，保持部材３３を基板２２側に配置してもよい。 The rotation mechanism 23 has a shaft member 31, a hole member 32, and a holding member 33, and holds the substrate 21 rotatably on the substrate 22. The shaft member 31, the hole member 32, and the holding member 33 can be formed, for example, by sheet metal processing a metal plate.
Here, the shaft member 31 is arranged on the substrate 22 side (inside the through hole H3), and the hole member 32 and the holding member 33 are arranged on the substrate 21 side (inside the through hole H1). On the contrary, the shaft member 31 is arranged on the substrate. The hole member 32 and the holding member 33 may be arranged on the board 22 side on the 21 side.

軸部材３１は、基板２２側に配置され、第１の機構部材として機能する。軸部材３１は、上板３１Ａ，側板３１Ｂ，止め板３１Ｃ，突出部３１Ｄ，３１Ｅ，開口３１Ｆ，係合部３１Ｇ，位置合わせ穴３１Ｈを有する。 The shaft member 31 is arranged on the substrate 22 side and functions as a first mechanical member. The shaft member 31 has an upper plate 31A, a side plate 31B, a stop plate 31C, protrusions 31D and 31E, an opening 31F, an engagement portion 31G, and an alignment hole 31H.

穴部材３２は、基板２１側に配置され、第２の機構部材として機能する。穴部材３２は、底板３２Ａ，側板３２Ｂ，止め板３２Ｃ，開口３２Ｄ，突起３２Ｅを有する。
保持部材３３は、基板２１側に配置され、第３の機構部材として機能する。保持部材３３は、略円板形状を有し、貫通孔３３Ａ、位置合わせ突起３３Ｂを有する。 The hole member 32 is arranged on the substrate 21 side and functions as a second mechanical member. The hole member 32 has a bottom plate 32A, a side plate 32B, a stop plate 32C, an opening 32D, and a protrusion 32E.
The holding member 33 is arranged on the substrate 21 side and functions as a third mechanical member. The holding member 33 has a substantially disk shape, and has a through hole 33A and an alignment protrusion 33B.

軸部材３１の上板３１Ａ、側板３１Ｂは、第１、第２の貫通孔の一方内に配置される基部として機能し、基板２２の貫通孔Ｈ３内に配置される。既述のように、貫通孔Ｈ３は、長穴であり、上板３１Ａ、側板３１Ｂはこの長穴に対応する形状（略楕円の円筒形状）を有する。このため、基板２２に対する軸部材３１の回転が防止される。
なお、側板３１Ｂと貫通孔Ｈ２の内壁の間にスペーサＳ１が配置され、基板２１の回転時での軸部材３１のズレが防止される。スペーサＳ１は、弾性を有するシート材料から構成できる。 The upper plate 31A and the side plate 31B of the shaft member 31 function as a base arranged in one of the first and second through holes, and are arranged in the through hole H3 of the substrate 22. As described above, the through hole H3 is an elongated hole, and the upper plate 31A and the side plate 31B have a shape (substantially elliptical cylindrical shape) corresponding to the elongated hole. Therefore, the rotation of the shaft member 31 with respect to the substrate 22 is prevented.
The spacer S1 is arranged between the side plate 31B and the inner wall of the through hole H2 to prevent the shaft member 31 from being displaced when the substrate 21 is rotated. The spacer S1 can be made of an elastic sheet material.

止め板３１Ｃは、側板３１Ｂの下端（貫通孔Ｈ３の下端）から基板２２の下面上に配置され、軸部材３１が貫通孔Ｈ３の上方に抜けないようにする。止め板３１Ｃは、両面テープＧ１で基板２２の下面に固定される。 The stop plate 31C is arranged on the lower surface of the substrate 22 from the lower end of the side plate 31B (the lower end of the through hole H3) so that the shaft member 31 does not come out above the through hole H3. The stop plate 31C is fixed to the lower surface of the substrate 22 with the double-sided tape G1.

突出部３１Ｄは、略円筒形状を有し、上板３１Ａから突出して、基板２２の貫通孔Ｈ３内に配置される。突出部３１Ｄは、テーパ形状の側板を有する。
突出部３１Ｅは、略円筒形状を有し、突出部３１Ｄの上面からさらに突出して、基板２１の貫通孔Ｈ１内かつ穴部材３２の開口３２Ｄ内に配置される。突出部３１Ｅは、第１、第２の貫通孔の他方内に挿入される軸部として機能する。このとき、突出部３１Ｅの上面は穴部材３２の底板３２Ａとほぼ同一の高さにある。 The protruding portion 31D has a substantially cylindrical shape, protrudes from the upper plate 31A, and is arranged in the through hole H3 of the substrate 22. The protrusion 31D has a tapered side plate.
The protruding portion 31E has a substantially cylindrical shape, further protrudes from the upper surface of the protruding portion 31D, and is arranged in the through hole H1 of the substrate 21 and in the opening 32D of the hole member 32. The protrusion 31E functions as a shaft portion inserted into the other of the first and second through holes. At this time, the upper surface of the protruding portion 31E is at substantially the same height as the bottom plate 32A of the hole member 32.

開口３１Ｆは、突出部３１Ｅの周囲かつ、突出部３１Ｄおよび突出部３１Ｅに形成される。開口３１Ｆは、軸部材の周囲に配置される、少なくとも１の開口として機能する。ここでは、開口３１Ｆは、２つであるが、１つ、あるいは３つ以上でもよい。
開口３１Ｆは、突出部３１Ｄ、３１Ｅに跨がって形成されている（突出部３１Ｄの上面および突出部３１Ｅの上面および側面が切り欠かれている）。但し、突出部３１Ｄ、３１Ｅの一方の上面のみに開口３１Ｆを形成してもよい。 The opening 31F is formed around the protrusion 31E and at the protrusion 31D and the protrusion 31E. The opening 31F functions as at least one opening arranged around the shaft member. Here, the number of openings 31F is two, but one or three or more may be used.
The opening 31F is formed so as to straddle the protrusions 31D and 31E (the upper surface of the protrusion 31D and the upper surface and the side surface of the protrusion 31E are notched). However, the opening 31F may be formed only on the upper surface of one of the protrusions 31D and 31E.

開口３１Ｆ内に穴部材３２の突起３２Ｅが挿入され、軸部材３１に対する穴部材３２の回転範囲を制限する。図８Ａ〜図８Ｃに示すように、軸部材３１に対して穴部材３２が回転すると、開口３１Ｆ内で突起３２Ｅが回転の周方向に沿って移動し、開口３１Ｆの周方向の両端に当接して回転が止められる。ここでは、左右それぞれにθ（例えば、２０°）の角度での回転を可能としている。 The protrusion 32E of the hole member 32 is inserted into the opening 31F to limit the rotation range of the hole member 32 with respect to the shaft member 31. As shown in FIGS. 8A to 8C, when the hole member 32 rotates with respect to the shaft member 31, the protrusion 32E moves along the circumferential direction of rotation in the opening 31F and abuts on both ends in the circumferential direction of the opening 31F. The rotation is stopped. Here, it is possible to rotate at an angle of θ (for example, 20 °) on each of the left and right sides.

係合部３１Ｇは、例えば、ネジ穴であり、保持部材３３の貫通孔３３Ａを通したビスＢがネジ止めされる。 The engaging portion 31G is, for example, a screw hole, and the screw B that has passed through the through hole 33A of the holding member 33 is screwed.

位置合わせ穴３１Ｈは、保持部材３３の位置合わせ突起３３Ｂと対応するように配置され、軸部材３１と保持部材３３の位置合わせに用いられる。 The alignment hole 31H is arranged so as to correspond to the alignment protrusion 33B of the holding member 33, and is used for alignment of the shaft member 31 and the holding member 33.

穴部材３２の底板３２Ａ、側板３２Ｂは、基板２１の貫通孔Ｈ１内に配置される。既述のように、貫通孔Ｈ１は、長穴であり、底板３２Ａ、側板３２Ｂはこの長穴に対応する形状（略楕円の円筒形状）を有する。このため、基板２１に対する穴部材３２の回転が防止される。
なお、側板３２Ｂと貫通孔Ｈ１の内壁の間にスペーサＳ２が配置され、基板２１の回転時での穴部材３２のズレが防止される。スペーサＳ２は、弾性を有するシート材料から構成できる。 The bottom plate 32A and the side plate 32B of the hole member 32 are arranged in the through hole H1 of the substrate 21. As described above, the through hole H1 is an elongated hole, and the bottom plate 32A and the side plate 32B have a shape (substantially elliptical cylindrical shape) corresponding to the elongated hole. Therefore, the rotation of the hole member 32 with respect to the substrate 21 is prevented.
The spacer S2 is arranged between the side plate 32B and the inner wall of the through hole H1 to prevent the hole member 32 from being displaced when the substrate 21 is rotated. The spacer S2 can be made of an elastic sheet material.

止め板３２Ｃは、側板３２Ｂの上端（貫通孔Ｈ１の上端）から凹部Ｒ１上に配置され、穴部材３２が貫通孔Ｈ１の下方に抜けないようにする。
既述のように、凹部Ｒ１も、長穴であり、止め板３２Ｃはこの長穴に対応する形状（略楕円板形状）を有する。このため、基板２１に対する穴部材３２の回転がさらに防止される。 The stop plate 32C is arranged on the recess R1 from the upper end of the side plate 32B (the upper end of the through hole H1) so that the hole member 32 does not come out below the through hole H1.
As described above, the recess R1 is also an elongated hole, and the stopper plate 32C has a shape (substantially elliptical plate shape) corresponding to the elongated hole. Therefore, the rotation of the hole member 32 with respect to the substrate 21 is further prevented.

開口３２Ｄは、略円形状を有し、底板３２Ａに形成される。開口３２Ｄは、軸部材を通す軸穴として機能する。開口３２Ｄに対して軸部材３１が回転することで、基板２１が基板２２に対して回転する。
ここでは、開口３２Ｄは、突起３２Ｅの付近で、円形状よりも外側に広がっている。すなわち、開口３２Ｄは、その周の一部が円弧形状でなくてもよい。
開口３２Ｄは、基板２１の貫通孔Ｈ１内に配置され、その中に軸部材３１の突出部３１Ｅが配置される。開口３２Ｄは、軸部材３１と同軸の略円形状を有し、軸部材３１に対して回転可能である。 The opening 32D has a substantially circular shape and is formed on the bottom plate 32A. The opening 32D functions as a shaft hole through which the shaft member is passed. The rotation of the shaft member 31 with respect to the opening 32D causes the substrate 21 to rotate with respect to the substrate 22.
Here, the opening 32D extends outward from the circular shape in the vicinity of the protrusion 32E. That is, a part of the circumference of the opening 32D does not have to be arcuate.
The opening 32D is arranged in the through hole H1 of the substrate 21, and the protruding portion 31E of the shaft member 31 is arranged therein. The opening 32D has a substantially circular shape coaxial with the shaft member 31, and is rotatable with respect to the shaft member 31.

突起３２Ｅは、底板３２Ａから下方に突出している。突起３２Ｅは、少なくとも１の開口内に配置され、前記回転の範囲を制限する少なくとも１の突起として機能する。ここでは、突起３２Ｅは、２つであるが、１つ、あるいは３つ以上でもよい。突起３２Ｅの個数が穴部材３２の開口３１Ｆの個数と対応していればよい。 The protrusion 32E projects downward from the bottom plate 32A. The protrusion 32E is disposed within at least one opening and functions as at least one protrusion that limits the range of rotation. Here, the number of protrusions 32E is two, but one or three or more may be used. The number of protrusions 32E may correspond to the number of openings 31F of the hole member 32.

ここでは、底板３２Ａを切り欠き、下方に折り曲げることで、突起３２Ｅが形成されている。突起３２Ｅは、穴部材３２の開口３１Ｆ内に配置され、既述のように、軸部材３１に対する穴部材３２の回転範囲を制限する。突起３２Ｅは、少なくとも１の開口内に配置され、前記回転の範囲を制限する少なくとも１の突起として機能する。 Here, the protrusion 32E is formed by cutting out the bottom plate 32A and bending it downward. The protrusion 32E is arranged in the opening 31F of the hole member 32, and as described above, limits the rotation range of the hole member 32 with respect to the shaft member 31. The protrusion 32E is disposed within at least one opening and functions as at least one protrusion that limits the range of rotation.

ここでは、開口３１Ｆを軸部材３１側に、突起３２Ｅを穴部材３２側に配置しているが、この逆に、開口３１Ｆを穴部材３２側に、突起３２Ｅを軸部材３１側に配置してもよい。 Here, the opening 31F is arranged on the shaft member 31 side and the protrusion 32E is arranged on the hole member 32 side. On the contrary, the opening 31F is arranged on the hole member 32 side and the protrusion 32E is arranged on the shaft member 31 side. May be good.

保持部材３３は、略円板形状の板部材である。保持部材３３は、突出部３１Ｅ（軸部材）の上面に固定され、開口３１Ｆ（軸穴）より大きい。保持部材３３は、穴部材３２の開口３２Ｄ内にある軸部材３１の突出部３１Ｅの上面とビスＢで接続、固定される。ビスＢが保持部材３３の貫通孔３３Ａを通過し、軸部材３１の突出部３１Ｅの係合部３１Ｇと係合、固定される。 The holding member 33 is a plate member having a substantially disk shape. The holding member 33 is fixed to the upper surface of the protrusion 31E (shaft member) and is larger than the opening 31F (shaft hole). The holding member 33 is connected to and fixed to the upper surface of the protruding portion 31E of the shaft member 31 in the opening 32D of the hole member 32 with a screw B. The screw B passes through the through hole 33A of the holding member 33, and is engaged with and fixed to the engaging portion 31G of the protruding portion 31E of the shaft member 31.

蓋Ｃ１は、穴部材３２，保持部材３３を覆い、凹部Ｒ１を塞ぐ。蓋Ｃ１は、両面テープＧ１で穴部材３２の止め板３２Ｃに固定される。 The lid C1 covers the hole member 32 and the holding member 33, and closes the recess R1. The lid C1 is fixed to the stopper plate 32C of the hole member 32 with the double-sided tape G1.

脚部２６は、弾性材料（例えば、ゴム）からなる略直方体形状を有し、基板２２の下面に粘着剤などで固定される。 The leg portion 26 has a substantially rectangular parallelepiped shape made of an elastic material (for example, rubber), and is fixed to the lower surface of the substrate 22 with an adhesive or the like.

図９は、表示装置用台座２０を図３Ａの線ｃ−ｃで切断した状態を表す断面図である。図１０は、基板２１から表示装置固定機構２７を取り外した状態を表す分解斜視図である。 FIG. 9 is a cross-sectional view showing a state in which the display device pedestal 20 is cut along the line cc of FIG. 3A. FIG. 10 is an exploded perspective view showing a state in which the display device fixing mechanism 27 is removed from the substrate 21.

表示装置固定機構２７は、底板４１，側板４２，止め板４３、係合部４４を有する。
底板４１，側板４２は、基板２２の貫通孔Ｈ３内に配置される。既述のように、貫通孔Ｈ２は、長穴であり、底板４１，側板４２はこの長穴に対応する形状（略楕円の円筒形状）を有する。このため、基板２１に対する表示装置固定機構２７の回転が防止される。 The display device fixing mechanism 27 has a bottom plate 41, a side plate 42, a stop plate 43, and an engaging portion 44.
The bottom plate 41 and the side plate 42 are arranged in the through hole H3 of the substrate 22. As described above, the through hole H2 is an elongated hole, and the bottom plate 41 and the side plate 42 have a shape (substantially elliptical cylindrical shape) corresponding to the elongated hole. Therefore, the rotation of the display device fixing mechanism 27 with respect to the substrate 21 is prevented.

止め板４３は、側板４２の下端（貫通孔Ｈ３の下端）から凹部Ｒ２上に配置され、表示装置固定機構２７が貫通孔Ｈ３の上方に抜けないようにする。
係合部４４は、例えば、ネジ穴であり、スタンド１２を通したビスがネジ止めされ、表示装置１０が固定される。 The stop plate 43 is arranged on the recess R2 from the lower end of the side plate 42 (the lower end of the through hole H3) so that the display device fixing mechanism 27 does not come out above the through hole H3.
The engaging portion 44 is, for example, a screw hole, and a screw passed through the stand 12 is screwed to fix the display device 10.

蓋Ｃ２は、台座固定機構２７を覆い、凹部Ｒ２を塞ぐ。蓋Ｃ２は、潤滑テープ２４で基板２１の下面に固定される。すなわち、基板２１の後辺側の潤滑テープ２４は、基板２１の回転時の潤滑と、台座固定機構２７の固定の双方に用いられる。潤滑テープ２４は、貫通孔Ｈ３（第３の貫通孔）および表示装置固定機構２７（固定治具）の少なくとも一部を覆う。 The lid C2 covers the pedestal fixing mechanism 27 and closes the recess R2. The lid C2 is fixed to the lower surface of the substrate 21 with the lubricating tape 24. That is, the lubricating tape 24 on the rear side of the substrate 21 is used for both lubrication of the substrate 21 during rotation and fixing of the pedestal fixing mechanism 27. The lubricating tape 24 covers at least a part of the through hole H3 (third through hole) and the display device fixing mechanism 27 (fixing jig).

以上のように、本実施形態では、基板２１，２２間の回転の円滑化を図るため、潤滑テープ２４と凸凹テープ２５を組み合わせることで、表示装置用台座２０の薄型化を図っている。すなわち、ボールなどの転がりを利用した回転構造ではなく、二種類のテープを用いることで、スムーズな回転と表示装置用台座２０の薄型化を両立している。 As described above, in the present embodiment, in order to facilitate the rotation between the substrates 21 and 22, the pedestal 20 for the display device is made thinner by combining the lubricating tape 24 and the uneven tape 25. That is, by using two types of tapes instead of a rotating structure using rolling of a ball or the like, both smooth rotation and thinning of the pedestal 20 for the display device are achieved.

さらに、基板２１，２２に種々の材料、例えば、ガラスを使用でき、高級感を出すことも容易となる（意匠性向上）。 Further, various materials such as glass can be used for the substrates 21 and 22, and it becomes easy to give a high-class feeling (improvement of design).

（変形例１）
図１１は、変形例１に係る表示装置用台座２０を分解した状態を上方から見た分解斜視図である。
ここでは、基板２２がプラスチックで構成され、その上面全体に凸凹が形成される。潤滑テープ２４より凸凹が大きい領域が基板２２の上面のほぼ全面に形成される。この凸凹はシボ加工、エンボス加工によって形成できる。
このようにすると、基板２２に凸凹テープ２５を配置する必要はない。すなわち、ここでは基板２２自体が凸凹テープ２５として機能する。基板２２全体に凸凹を有することから、基板２１を回転して、この凹凸が見えても、美観を損なうことはない。 (Modification 1)
FIG. 11 is an exploded perspective view of the display device pedestal 20 according to the modified example 1 as viewed from above.
Here, the substrate 22 is made of plastic, and unevenness is formed on the entire upper surface thereof. A region having a larger unevenness than the lubricating tape 24 is formed on almost the entire upper surface of the substrate 22. This unevenness can be formed by embossing or embossing.
In this way, it is not necessary to arrange the uneven tape 25 on the substrate 22. That is, here, the substrate 22 itself functions as the uneven tape 25. Since the entire substrate 22 has irregularities, even if the substrate 21 is rotated and the irregularities are visible, the appearance is not spoiled.

なお、必ずしも基板２２の上面全体に凸凹を形成する必要はない。例えば、基板２２の四辺の周囲に沿う領域に凸凹を形成しないことも可能であり、却って意匠的効果を高めることができる。すなわち、美観を損なわない範囲で、基板２２の四辺の周囲近傍、あるいは内部に凸凹を形成しないことが可能である。例えば、基板２２の上面の略全面（例えば、上面の８０％、９０％以上の範囲）に凸凹を形成すれば十分である。 It is not always necessary to form unevenness on the entire upper surface of the substrate 22. For example, it is possible not to form unevenness in the region along the periphery of the four sides of the substrate 22, and on the contrary, the design effect can be enhanced. That is, it is possible not to form irregularities in the vicinity of or inside the four sides of the substrate 22 as long as the aesthetic appearance is not impaired. For example, it is sufficient to form irregularities on substantially the entire upper surface of the substrate 22 (for example, a range of 80% or 90% or more of the upper surface).

（変形例２）
図１２は、変形例２に係る表示装置用台座２０を上方から見た状態を表す上面図である。
ここでは、潤滑テープ２４を回転の周に沿った円弧（円周）形状とし、凸凹テープ２５を円形状とし、潤滑テープ２４の一部と接触させている。
潤滑テープ２４を回転の周に沿った円弧形状とすることで、回転時での径方向でのズレを防止し、潤滑テープ２４、凸凹テープ２５の径方向の幅を低減し、使用する材料の面積を小さくすることができる。
上記実施形態では、潤滑テープ２４、凸凹テープ２５は矩形状であったが、このように、潤滑テープ２４、凸凹テープ２５は種々の形状を採用できる。 (Modification 2)
FIG. 12 is a top view showing a state in which the display device pedestal 20 according to the modified example 2 is viewed from above.
Here, the lubricating tape 24 has an arc (circumferential) shape along the circumference of rotation, and the uneven tape 25 has a circular shape and is in contact with a part of the lubricating tape 24.
By forming the lubricating tape 24 into an arc shape along the circumference of rotation, it is possible to prevent radial deviation during rotation, reduce the radial width of the lubricating tape 24 and uneven tape 25, and use materials. The area can be reduced.
In the above embodiment, the lubricating tape 24 and the uneven tape 25 have a rectangular shape, but as described above, the lubricating tape 24 and the uneven tape 25 can adopt various shapes.

（変形例３）
図１３は、変形例３に係る表示装置用台座２０を上方から見た状態を表す上面図である。
ここでは、基板２１の後辺２１Ａは、基板２２の後辺２２Ａと同様、直線形状を有する。また、基板２１に貫通孔Ｈ５が形成される。貫通孔Ｈ５から貫通孔Ｈ４（台座固定機構２８）が露出している。貫通孔Ｈ５が回転の周方向に長い長穴（ここでは、円弧形状の長穴）を有することで、基板２１を回転しても貫通孔Ｈ４が基板２１の下に隠れることはない。
なお、ここでは貫通孔Ｈ５が円弧形状の長穴としたが、直線状の長穴としてもよい。長穴の幅をある程度大きくすれば、基板２１を回転しても貫通孔Ｈ４が貫通孔Ｈ５から露出した状態とできる。
また、潤滑テープ２４、凸凹テープ２５の形状を変形例２と同様としたが、実施形態と同様としてもよい。 (Modification 3)
FIG. 13 is a top view showing a state in which the display device pedestal 20 according to the modified example 3 is viewed from above.
Here, the rear side 21A of the substrate 21 has a linear shape like the rear side 22A of the substrate 22. Further, a through hole H5 is formed in the substrate 21. The through hole H4 (pedestal fixing mechanism 28) is exposed from the through hole H5. Since the through hole H5 has an elongated hole (here, an arc-shaped elongated hole) that is long in the circumferential direction of rotation, the through hole H4 is not hidden under the substrate 21 even if the substrate 21 is rotated.
Although the through hole H5 is an arc-shaped elongated hole here, it may be a linear elongated hole. If the width of the elongated hole is increased to some extent, the through hole H4 can be exposed from the through hole H5 even if the substrate 21 is rotated.
Further, although the shapes of the lubricating tape 24 and the uneven tape 25 are the same as those of the second modification, they may be the same as those of the embodiment.

本発明のいくつかの実施形態を説明したが，これらの実施形態は，例として提示したものであり，発明の範囲を限定することは意図していない。これら新規な実施形態は，その他の様々な形態で実施されることが可能であり，発明の要旨を逸脱しない範囲で，種々の省略，置き換え，変更を行うことができる。これら実施形態やその変形は，発明の範囲や要旨に含まれるとともに，特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

１０：表示装置、２０：表示装置用台座、２１，２２：基板、２３：回転機構、２４：潤滑テープ、２５：凸凹テープ、２６：脚部、２７：表示装置固定機構、２８：台座固定機構、３１：軸部材、３１Ａ：上板、３１Ｂ：側板、３１Ｃ：止め板、３１Ｄ：突出部、３１Ｅ：突出部、３１Ｆ：開口、３１Ｇ：係合部、３１Ｈ：位置合わせ穴、３２：穴部材、３２Ａ：底板、３２Ｂ：側板、３２Ｃ：止め板、３２Ｄ：開口、３２Ｅ：突起、３３：保持部材、３３Ａ：貫通孔、３３Ｂ：位置合わせ穴、４１：底板、４２：側板、４３：止め板、４４：係合部、Ｃ１、Ｃ２：蓋、Ｇ１、Ｇ２：両面テープ、Ｈ１〜Ｈ４：貫通孔、Ｒ１、Ｒ２：凹部、Ｓ１、Ｓ２：スペーサ 10: Display device, 20: Display device pedestal, 21 and 22: Board, 23: Rotation mechanism, 24: Lubricating tape, 25: Uneven tape, 26: Legs, 27: Display device fixing mechanism, 28: Pedestal fixing mechanism , 31: Shaft member, 31A: Top plate, 31B: Side plate, 31C: Stop plate, 31D: Protruding part, 31E: Protruding part, 31F: Opening, 31G: Engaging part, 31H: Alignment hole, 32: Hole member , 32A: Bottom plate, 32B: Side plate, 32C: Stop plate, 32D: Opening, 32E: Protrusion, 33: Holding member, 33A: Through hole, 33B: Alignment hole, 41: Bottom plate, 42: Side plate, 43: Stop plate , 44: Engagement part, C1, C2: Cover, G1, G2: Double-sided tape, H1 to H4: Through hole, R1, R2: Recess, S1, S2: Spacer

Claims

The first plate member for mounting the display device and
A second plate member arranged below the first plate member, and
A rotation mechanism that rotatably holds the first plate member to the second plate member,
Said disposed on a portion of the lower surface of the first plate member, a first region of at least part than the frictional resistance rather small smoothing other areas of the lower surface,
A second region, which is arranged on at least a part of the upper surface of the second plate member so as to correspond to the first region and has irregularities on the surface.
A pedestal for a display device equipped with.

The display device pedestal according to claim 1, wherein the first region is longer than the second region in the circumferential direction of the rotation.

The display device pedestal according to claim 1 or 2, wherein the first region has an arc shape, and the second region comes into contact with a part of the first region.

The first said the region first plate member than the frictional coefficient rather small smooth first sheet member is disposed,
The display device pedestal according to any one of claims 1 to 3, wherein a second seat member having an uneven surface is arranged in the second region.

The display device pedestal according to claim 1, wherein the second region is arranged on substantially the entire upper surface of the upper surface of the second plate member.

The first plate member has a first through hole and has a first through hole.
The second plate member has a second through hole corresponding to the first through hole.
The rotation mechanism
A first mechanical member having a base portion arranged in one of the first and second through holes and a shaft portion inserted in the other of the first and second through holes.
A second mechanical member arranged in the other of the first and second through holes and having a shaft hole through which the shaft portion passes, and a second mechanical member.
The display device pedestal according to any one of claims 1 to 5, further comprising a third mechanical member fixed to the upper surface of the shaft member and larger than the shaft hole.

One of the first and second mechanical members has at least one opening arranged around the shaft member.
The display device pedestal according to claim 6, wherein the other of the first and second mechanical members is arranged in the at least one opening and has at least one protrusion that limits the range of rotation.

The second plate member has a pedestal fixing portion for fixing a pedestal for a display device.
The display device pedestal according to any one of claims 1 to 7, wherein the first plate member maintains an exposed state of the pedestal fixing portion during the rotation.

The display device pedestal according to claim 8, wherein the first plate member has an elongated hole long in the circumferential direction of the rotation or a rear side having an arc shape along the circumferential direction of the rotation.

The first plate member has a third through hole and has a third through hole.
Further provided with a fixing jig for fixing the display device, which is arranged in the third through hole.
The display device pedestal according to any one of claims 1 to 9, wherein the first sheet member covers at least a part of the third through hole and the fixing jig.