JP2023068232A - portable display stand - Google Patents

Abstract

To provide a portable display stand whose base part can be miniaturized and moved stably.SOLUTION: Disclosed is a portable display stand which includes: a pillar 2 on which four wheels 11 are provided and which is erected at the center of a movable base part 1; and a mounting fixture 4 for a display which is provided on the pillar 2. The pillar 2 includes: a first portion 21 extending vertically from the center of the base part 1; a second portion 22 bending backward; and a third portion 23 extending vertically from the end edge of the second portion 22. The center of gravity of the display D is located in the vicinity of the center by the second portion 22, and the balance is maintained.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a movable stand for mounting a thin display such as a liquid crystal display device, and more particularly to a portable display stand that has excellent weight balance and can be stably and easily carried.

A thin display such as a liquid crystal display (LCD) (hereafter simply referred to as "display"; the term "monitor" is sometimes used as in patent documents) has its own stand and can be used as it is on a desk. There are many things that can be placed on top of The stand is attached to the display with screws, which can be removed to attach the display to another stand. As an example, there is known a monitor arm, which is a stand capable of freely changing the position and orientation of a display while fixing it on a desk. On the other hand, a floor stand is known for installing a display on the floor of an entrance, office, or the like. Some floor stands have casters on their bases and are configured to be movable (Patent Documents 1 to 3).

Patent No. 4907704 When storing in a corner of a room when not in use, the legs of the stand interfere with each other, making it impossible to store multiple display devices in a narrow space. There is a problem that a large space is required to accommodate the display device. By devising the arrangement of the support legs (casters), it was possible to accommodate a large number of stands in a small space. Patent Document 1: JP-A-2021-40860 It is desirable to be able to move only the monitor back and forth while maintaining the position of the monitor stand during surgery. To provide a monitor stand which maintains a stable state especially even when the monitor is moved forward (in a direction approaching a patient). Japanese Laid-Open Patent Publication No. 2003-61010 discloses a stand for an image display having four legs. The existing base is a structure in which a single support is erected at its center.

Movable floor stands are required to make effective use of indoor space and not to get in the way when combined with other furniture or during actual use (Patent Document 3). Furthermore, while realizing them, it is also required to be stably movable.

A desk-fixed type stand (monitor arm) has a clamp that is firmly fixed to the desk, and the base (lower end) of the stand is inserted into it. The center of gravity of the display is not on the clamp, but on the front side (user side), so it is not balanced, but the entire weight and moment are received by the stand body and the fixed clamp, so they do not fall over. On the other hand, a portable display stand has casters (wheels) or legs and is not fixed to the floor, so it cannot be configured as unbalanced as a monitor arm. The display and stand must be balanced (balanced). Balance makes it easier to carry without tipping over. To achieve balance, for example, it is conceivable to increase the size of the base of the portable display stand. The larger the base, the more stable it is. However, as described above, there is a demand for miniaturization in terms of space saving.

It is preferable from the viewpoint of cost reduction if existing office furniture such as the legs of a meeting table can be used as the base. From this point of view, it is difficult to adopt the method of enlarging the base to achieve balance. It is desirable that a portable display stand have a small base and be stable. In other words, we would like to be able to use the same base as existing office furniture while attaching a slightly larger, or heavier, display. At the same time, from the viewpoint of cost reduction, it is desirable to avoid providing unnecessary parts such as overturn prevention members.

In the monitor stand disclosed in Patent Literature 1, the strut is not erected at the center of the base. It's slightly offset. For this reason, there is a problem that the existing base cannot be used and the cost increases (the base of existing office furniture has a structure in which a pillar is erected in the center).

The monitor stand of Patent Document 2 is provided with a stopper for stabilizing the state of the entire monitor stand especially when the monitor is moved forward. Since the number of stopper members increases, there is a problem that the cost rises.

The image display stand of Patent Document 3 has many legs, which increases the number of members and increases the cost. The shape also increases. Moreover, the base of existing office furniture cannot be used.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to use the base of existing office furniture to reduce costs, and at the same time, it is possible to balance it with the display attached and to carry it stably. To provide a portable display stand capable of

The portable display stand according to the present invention is
a movable base provided with three or more wheels or foot members (adjusters) in contact with the floor;
a post erected substantially at the center of the base;
A portable display stand comprising a mounting fixture for a display provided on the support,
The front side of the display attached to the fixture is the front side, and the opposite side is the back side,
The post includes a first portion that extends vertically from substantially the center of the base, a second portion that bends toward the back side, and a third portion that extends vertically from the end of the second portion,
The center of gravity of the display is located near the center of the base when the display is attached to the fixture.

A hook may be provided on the rear side of the column at the height of the display so that the display is not accidentally attached to the opposite side.

Three or more wheels are in contact with the floor at the same time and these support the base and thus the stanchion and display. The number of wheels is typically 3, 4, or 5, and they are attached, for example, to the ends of members that radiate from the center. For example, the wheels are arranged symmetrically about the center in plan view. For example, when a plurality of wheels are set as vertices, the center is the center of gravity of the figure with these as vertices. For example, when the number of wheels is 3, each wheel is positioned at the vertex of an equilateral triangle, when the number of wheels is 4, it is positioned at the vertex of a square, and when the number of wheels is 5, it is positioned at the vertex of a regular pentagon.

Because the strut of the present invention includes the second portion, the strut is curved rather than straight. The bent position corresponds to its size so as not to interfere with the back of the display. For example, the bent position may be moved downward if a larger display needs to be installed. Also, the degree of bending of the second portion may be changed according to the center of gravity (weight) of the display.

Positioning the center of gravity of the display in the vicinity of the center of the base when the display is attached to the fixture means that the center of gravity of the display and the degree of bending of the second portion (this is the (corresponding to the deviation amount of the center of the three parts) (see FIG. 5 and its explanation). For example, when the display is mounted and the base is placed on a horizontal plane and the balance is maintained (when there is no bias), the center of gravity can be said to be near the center of the base.

A display stand according to the present invention.
a base;
a pillar erected on the base;
A display stand comprising a display fixture provided on the support,
The mounting fixture is configured to be divisible into left and right parts, and the left part 4a and the right part 4b are respectively composed of a part in which mounting holes for the display are provided and a structure ( and a portion with mounting holes, etc.).

According to this invention, the second portion (portion bent toward the back side) that bends toward the back side is provided below the mounting position of the display on the support, and the display is attached to the fixture, Since the center of gravity of the display is positioned near the center of the base, it is possible to provide a portable display stand that can be balanced with the display attached and stably carried.

According to this invention, the size of the portable display stand can be reduced as compared with the portable display stand without the second portion.

1 is a front perspective view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. 1 is a rear perspective view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. 1 is a front view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. 1 is a rear view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. (a) A right side view of a portable display stand (with a display attached) according to an embodiment of the invention, (b) A right side view of a portable display stand (with a display attached) having a linear support. (comparative example). 1 is a left side view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. 1 is a plan view of a portable display stand (with a display attached) according to an embodiment of the invention; FIG. FIG. 4 is a bottom view of the portable display stand (with the display attached) according to the embodiment of the invention; 1 is a front perspective view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. 1 is a rear perspective view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. 1 is a front view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. 1 is a rear view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. Fig. 2 is a right side view of the portable display stand (with no display attached) according to the embodiment of the invention; 1 is a left side view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. 1 is a plan view of a portable display stand (with no display attached) according to an embodiment of the invention ((a) with a table and (b) without a table). FIG. 1 is a bottom view of a portable display stand (with no display attached) according to an embodiment of the invention; FIG. FIG. 4 is an exploded perspective view of the display fixture and the cable hook of the portable display stand according to the embodiment of the invention;

Embodiments of the invention will be described with reference to the drawings.

1 to 17 are diagrams showing a portable display stand. 1 to 8 show the state with the display attached, and FIGS. 9 to 17 show the state without the display attached.

A portable display stand according to an embodiment of the invention includes a movable base 1 provided with four casters (wheels) 11, a support 2 erected substantially at the center of the base 1, and a display D provided on the support 2. and a display fixture 4. The number of casters 11 may be three or more, and may be five.

The column 2 is erected substantially vertically, but is bent in the middle.

The front side of the display D attached to the display fixture 4 will be referred to as the front side, and the opposite side will be referred to as the back side, and the details of the bending will be described. In right side views (FIGS. 5 and 13), the left side is the front side and the right side is the back side. The post 2 has a lower straight (first portion) 21 extending vertically from the center C of the base, a bent portion 22 (second portion) connected to the upper end and bent to the rear side, and connected to the upper end (terminus). and an upper straight (third portion) 23 extending vertically therefrom.

In the illustrated example, the bent portion 22 consists of a lower portion 22a, an intermediate portion 22b, and an upper portion 22c. This is an example and is not limited to this. For example, the bending portion 22 as a whole may be curved without the intermediate portion 22b. The lower part 22a is shaped like a part of a tubular member (pipe) cut out, for example. The mode of curvature of the lower portion 22a is an arc (in a side view, the center line of the lower portion 22a forms an arc directed toward the rear side) or a broken line (similarly, the center line of the lower end and the center line of the upper end of the lower portion 22a intersect at a predetermined angle). ) and so on. The upper portion 22c is of the same shape as the lower portion 22a, but is arranged symmetrically therewith. Therefore, the upper end of the upper portion 22c is oriented vertically. The upper straight 23 thus extends vertically like the lower straight 21 . The above is just an example. In short, it is sufficient that the upper end faces the vertical direction. For example, 22a may be a polygonal line and 22c may be a circular arc.

A display fixture 4 is fixed near the upper end of the upper straight 23 . FIG. 17 shows an example of its specific structure. Referring to this, the display fixture 4 consists of two parts 4a and 4b divided into left and right. The portions 4a and 4b are generally symmetrical except for the meshing portion. The meshing portions when the portions 4a and 4b are combined, that is, the upper and lower left ends of the portion 4a and the upper and lower right ends of the portion 4b have a shape in which a part of them are cut off, and they fit in the missing portions of each other. It is configured to mesh by being inserted. For this reason, the meshing portion is not left-right symmetrical. A plurality of display mounting holes 41 are provided in the portions 4a and 4b so as to correspond to various displays, and the display D is mounted by passing screws through the holes and engaging the screw holes on the rear surface of the display D. - 特許庁The parts 4a and 4b are fixed by hooking the hooking holes 42 on projections (not shown) provided on the column 2, passing screws through the mounting holes 43, and engaging the screw holes of the column 2. As shown in FIG. The portion where the display mounting hole 41 is provided and the portion where the hooking hole 42 and the mounting hole 43 are provided are approximately perpendicular to each other. For example, it is manufactured by bending a metal plate at 90 degrees by press working or the like. Alternatively, it is manufactured by joining two metal plates at right angles.
Note that the display fixture 4 of FIG. 17 can also be applied to a non-portable display stand.

The cable hook 5 is attached to the cable hook attachment hole 51 on the rear side at the height position of the post 2 for attaching the display D, which is at the height of the display attachment 4 in the example of the figure. The cable hook 5 hooks the power cable and video cable (not shown) of the display D, and also indicates the side on which the display D is attached. That is, the side with the cable hook 5 is the rear side, and the display D is attached on the opposite side. The cable hook 5 can call attention so that the display D is not mistakenly attached to the opposite side. It is possible to reduce the time required for attaching and aligning a large and heavy display.

A small table 6 is attached to the middle of the column 2 by a table fixture 7 .

As can be easily understood from the side view, the position of the display D moves to the rear side due to the action of the bent portion 22 . The amount of movement (offset amount) is about 55 mm, for example, assuming that the height of the display stand is 1150 mm. The degree of bending of the bending portion 22 is such that the center of gravity of the display D is positioned near the center C of the base 1 when the display D is attached to the display fixture 4 .

Further description will be added with reference to FIG. FIG. 4(b) is a comparative example in which the bent portion 22 is not provided. In the comparative example, the center of gravity G of the display D and the center of the support 2, that is, the center C of the base 1 are separated by a horizontal distance d2. On the other hand, according to the embodiment of the present invention shown in FIG. d1 is the distance between the centers of the lower straight 21 and the upper straight 23; In this example, d1 is approximately equal to d2, but some difference is allowed.

The discussion of FIG. 5 is schematic, and d1 may differ from d2 in consideration of the actual configuration and weight, eg the weight of the cable hanging on the cable hook 5 and the table 6. FIG. It is sufficient that the center of gravity G of the display D is positioned near the center C of the base 1 in the actual state where the display D is attached to the display fixture 4 .

The center C of the base 1 is typically the center of gravity (geometric center) of the figure with the caster 11 as the vertex in a plan view.

The position of the bent portion 22 corresponds to the size of the display D so as not to interfere with it. When attaching a large display, the bent portion 22 moves downward. The degree of bending may be increased.

According to the embodiment of the present invention, since the center of gravity G of the attached display is located near the center C of the base 1, the portable display stand can be balanced and stably moved. rice field.

According to the embodiments of the present invention, it is now possible to mount a slightly larger, ie, heavier, display while using the same base. As a result, both space saving and cost reduction were achieved. In the comparative example shown in FIG. 5(b), even if a small and light display can be used without any problem, mounting a larger and heavier display may cause an imbalance. To avoid this, the base had to be made larger. According to embodiments of the present invention, it was possible to avoid enlarging the base for mounting a large display.

According to the embodiment of the present invention, it is possible to reduce the number of members as much as possible with a simple structure without providing extra parts such as overturn prevention members, and the existing base can be reused, thereby realizing cost reduction.

The above description relates to a portable display stand having casters (wheels) 11 on a base (base) 1 . The invention is not limited to this. The present invention includes a portable display stand having leg members (adjusters) on a base 1 instead of casters (wheels) 11 . The foot member is a member provided on the bottom surface of the base (basal portion) 1 and in contact with the floor. The adjuster is a foot member that can adjust the height using the characteristics of the screw. Foot members also include parts made of rubber or the like that are used for anti-slip or anti-vibration purposes. Unlike clamps, casters (wheels) 11 and foot members (adjusters) are not fixed to the floor or other objects, and are common in that they are members that provide portability to the display stand. The present invention provides the above effects for both the caster (wheel) 11 and the leg member (adjuster).

The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, which are also included in the scope of the present invention. It goes without saying that

1 base
11 caster (wheel)
2 strut 21 lower straight (first part)
22 Bent part (second part, part bent to the back side)
22a lower part of bent part 22b middle part of bent part 22c upper part of bent part 23 upper straight (third part)
4, 4a, 4b Display fixture, its left and right parts 41 Display mounting hole 42 Hook hole 43 Mounting hole 5 Cable hook 51 Cable hook mounting screw hole 6 Table 7 Table fixture C Center of base D Display G Center of gravity of display

Claims (2)

a movable base provided with three or more wheels or foot members contacting the floor;
a post erected substantially at the center of the base;
A portable display stand comprising a display fixture provided on the support,
The front side of the display attached to the fixture is the front side, and the opposite side is the back side,
The post includes a first portion that extends vertically from substantially the center of the base, a second portion that bends toward the back side, and a third portion that extends vertically from the end of the second portion,
A portable display stand, wherein the center of gravity of the display is positioned near the center of the base when the display is attached to the fixture. 2. The portable display stand according to claim 1, wherein a hook is provided on the rear side of the support at the height of the display.

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