JPH1185038A - Flat-panel display device and turning load hinge of this device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to surely and stably hold a display section to a desired angle position, to prevent the change with elapse of time and to exhibit stable holding power for a long period of time by specifying the constitution of hinges. SOLUTION: The panel display device has a first hinge piece 14a which is fixed at one end to a supporting piece 12a of a supporting base by means of screws 14c, etc., via mounting holes 14b and a turning shaft 14d of a circular shape in section which is fixed to the other end of this first hinge piece 14a. A winding member 14f which is wound in a pressurized contact state on the peripheral surface in the central part of the turning shaft 14d having the circular shape in the section is wound by caulking in the pressurized contact state on the peripheral surface in the central part of the turning shaft 14d via a spring material 14g and leaf spring material 14h for obtaining a good pressure contact state. The device is also provided with a second hinge piece 14i fixed at one end to a mounting piece 13 on the rear surface of the display section via mounting holes 14j by means of screws 14k, etc. Since the winding member 14f is brought into pressure contact with the peripheral surface of the turning shaft 14d, large friction force is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat display device capable of inclining a display screen at an arbitrary depression angle or elevation angle position and stably holding the display screen at that angle position, and to the flat display apparatus. Related to a rotating load hinge to be used.

[0002]

2. Description of the Related Art In recent years, display devices for displaying various kinds of information are:
A so-called flat display device having a flat display panel such as a liquid crystal display panel or a plasma display panel (hereinafter abbreviated as PDP) instead of a CRT in response to a demand for a thin and space-saving screen or a large screen. Are increasing in specific gravity. Since the display section of this type of flat display device has a thin flat plate shape, various installation methods utilizing the characteristics thereof have been proposed. The display screen may be tilted to an arbitrary depression or elevation position, and a so-called tilt function may be provided to support the display screen in a rotatable manner so that the display screen can be stably fixed and held at that angle position. One of them.

A conventional example of this type of flat panel display having a tilt mechanism is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-56516. FIG. 18 schematically shows a tilt mechanism section of the conventional apparatus. In the figure, reference numeral 1 denotes a display section including a display panel and a housing for accommodating the display panel; 1a, a hole provided in the display section; Is this hole 1a
3 is a set screw for fixing the rotating shaft to the display unit 1.
And the rotating shaft 2 are integrally rotated. 4 is the display unit 1
A metallic cylindrical casing 5 attached to a stand (not shown) serving as a support base is a rubber member made of urethane rubber or the like inserted in a compressed state into the cylindrical casing, and 5a is a rubber member The rotary shaft 2 is press-fitted into the hole 5a.

[0004] The conventional flat display device is constructed as described above, and the supporting force of the tilt mechanism for stabilizing the attitude of the display unit 1, that is, the turning load is changed by the friction force between the turning shaft 2 and the rubber member 5. It is to be obtained by. Thereby, the display unit 1
Can be tilted to any angle on the depression angle side or the elevation angle side, and at an arbitrary angle, and the display unit 1 can be fixed at that angular position.

[0005]

As described above, in the conventional device, the display unit 1 is fixed at an arbitrary angle by the frictional force between the rotating shaft 2 and the rubber member 5, that is, the elastic force of the rubber member 5. Therefore, when the display unit 1 is lightweight, the display unit 1 can surely be stably held at a desired angular position. However, for example, when the display unit 1 has a large screen and the weight is large, or when the display unit 1 is structurally large in weight per unit area, the PD
In the case of P or the like, the rotating force due to the weight of the display unit 1 exceeds the frictional force between the rotating shaft 2 and the rubber member 5, that is, the rotating load. Therefore, even if it is tilted to a desired angle position, it may not be possible to stably hold the tilt position.

By increasing the elastic force of the rubber member 5, it is possible to cope with a certain weight, but in particular, the display unit 1 is a PDP having a large weight per unit area as described above. If the screen is large, the conventional device cannot withstand the weight due to its structure, making it impossible to stably hold the display unit 1 at an arbitrary angular position. In addition, since deterioration of the rubber member 5 due to aging, particularly heat cycle, is inevitable, the frictional force, that is, the rotation load gradually decreases with time, and it is necessary to replace the rubber member 5 each time. Met. In addition, if the screen of the display unit becomes large and there is a weight imbalance between the left and right of the display unit across the center line, a twist occurs when the display unit is rotated, and the display unit cannot be smoothly rotated. There was a problem.

Furthermore, when the screen of the display unit is enlarged, various external terminals are provided on the bottom surface of the display unit. As a result, the support base supporting the display unit has a difficulty in inserting and removing the connector from the external terminals. However, it is necessary to take into consideration the ease of insertion and removal.

Further, when the screen of the display section is enlarged, the support for supporting the screen is inevitably increased. However, when the support is enlarged, the display section appears relatively small.

Further, when the display unit has a large screen and its weight is large, the mounting location is often specified from the time of manufacture because the support strength is unnecessarily worrisome.
Therefore, there was no room for the user to select the installation location.

Further, in the conventional apparatus, when the replacement of the rubber member is neglected and the frictional force, that is, the rotational load is extremely reduced,
The display may not be able to maintain the predetermined angular position and may be automatically rotated, and may collide with and damage other objects. As the display unit has a large screen and a large weight, the impact force at the time of collision with another object increases, and the degree of damage increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. A first object is to provide a P display having a particularly large weight per unit area even if the weight of the display section is increased.
Even if it is a DP and the screen becomes large, the display unit can be stably held at a desired angular position without any change over time, and a stable holding force can be exhibited over a long time without change over time. It is an object of the present invention to provide a flat display device capable of smoothly rotating a display unit without twisting even if there is a weight imbalance between the left and right sides of the center line of the unit.

A second object is to provide a flat display device in which a support for supporting a display unit does not hinder the operation of inserting and removing a connector from and to an external terminal, and a sufficient space for inserting and removing a connector is secured. It is.

A third object of the present invention is to provide a flat display device having an excellent design that can make the display portion look relatively large.

A fourth object of the present invention is to provide a flat display device in which an installation place such as a floor surface, a ceiling or a wall surface can be arbitrarily selected according to a user's request.

Still another object of the present invention is to provide a rotating load hinge of a flat display device which can limit the display unit from being tilted more than necessary and prevent the display unit from being damaged by a collision with another object. .

[0016]

A flat display device according to the present invention has a flat display portion, a support for supporting the display portion, one end of which is fixed to the display or the support, and the other end of which is fixed to the display or the support. A first hinge piece fixed to a part of the rotation shaft, a winding member having a circular cross section pressed into contact with a peripheral surface of the remaining portion of the rotation shaft, and one end fixed to the winding member; , A pivot load hinge having a pivot load having the other end fixed to the support base or the second hinge piece fixed to the display unit, and the pivot load on both sides of a center line on the back surface of the display unit. In addition to being supported by the hinge, the rotation load values of the rotation load hinges on both sides thereof are made different from each other.

In addition, the number of pivot load hinges provided on both sides of the center line on the back of the display unit is different, so that the pivot load values of the pivot load hinges on both sides are different from each other.

Further, the asymmetrical positions sandwiching the center line on the back of the display unit are supported by the rotating load hinges, respectively, so that the rotating load values on both sides sandwiching the center line are different from each other.

Further, the support base is formed in a T-shaped cross section composed of a support piece and a base plate, and the support base is divided into two.

Still further, the base plate of the support base having a T-shaped cross section composed of the two divided support pieces and the base plate is connected by a connecting member.

Further, the support base is constituted by a base plate having a length smaller than the width of the display unit, and a pair of support pieces extending from the base plate toward both sides of the display unit. .

Further, a pair of support pieces constituting the support base are
They are made to contact each other at the center.

Further, a pair of support pieces are integrally formed, and a support plate is constituted by this and a base plate.

Still further, the center of the pair of support pieces is made larger than the distance between the lower end of the display unit and the base plate.

Further, the mounting plate is provided with a mounting plate in a support plate having a T-shaped cross section and comprising a support piece and a base plate.

In addition, in the pivot load hinge of the flat display device according to the present invention, the first engagement piece is attached to the first hinge piece of the pivot load hinge, and when the pivot amount reaches a predetermined value, The second engagement piece that engages with the first engagement piece is attached to the second hinge piece.

Further, the first engagement piece attached to the first hinge piece is formed by a portion for attaching to the first hinge piece and an engagement portion having a U-shaped cross section connected to the attachment portion. The second engaging piece attached to the second hinge piece is engaged with the attaching portion to the second hinge piece and the engaging portion of the first engaging piece rising from the attaching portion. This is formed so as to have an L-shaped cross section including an engaging portion.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 is a front view showing a flat display device according to Embodiment 1 of the present invention, FIGS. 2 and 3 are left and right side views thereof, FIG. 4 is a rear view thereof, and FIG. FIG. 5 is a sectional view taken along line VV in FIG. 4. 1 to 5, reference numeral 10 denotes a display unit comprising a flat display panel such as a PDP and a housing for accommodating the display panel, and 10a denotes a temperature rise inside a display unit provided on the upper rear surface of the display unit. Ventilation holes 10b and 10c are also provided in the lower back of the display unit and on the bottom surface of the display unit.
As shown in FIG. 5, a concave portion 10e formed in the lower rear portion of the display portion 10 is a top surface of the concave portion 10d, that is, a video terminal provided on the bottom surface of the display portion 10, and an S-video. Well-known external terminals, such as a terminal, an audio terminal, and an analog RGB terminal, 10f are connectors respectively connected to these external terminals 10e, and are connected to external devices via connection cords 10g.

Reference numeral 11 denotes a power supply circuit unit mounted on the back of the display unit 10 and includes a control circuit for driving, for example, a PDP. Reference numeral 11a denotes a power supply plug provided on the right side view of the power supply circuit unit. 11b (see FIG. 4) for receiving power through a power cord 11c. 11d is a power switch, 11e, 11f and 11g are ventilation holes provided on the back, right and left sides of the power supply circuit section 11 including the control circuit, and 12 is for supporting the display section 10. The cross section formed by the support piece 12a and the base plate 12b is a T-shaped support table. In the first embodiment, as is clear from FIGS. The support table 12 on the right side of FIG. 4 is provided with a horizontal extension 12c above a support piece 12a. The reason for installing the extension portion 12c will be clear from the following description, and therefore will not be described in detail here. Reference numeral 12d denotes a connecting member for connecting the above-mentioned two divided support bases 12, 12, and a base plate 12b,
12b is made of a thin plate material connecting between the bottom surfaces.

3, 4, and 5 is indicated by a numeral 13 such as a screw 13 a (see FIG. 8 described later).
A mounting piece 14 fixed to the back surface of the support base 12 is mounted between the mounting piece 13 and the support piece 12a of the support base 12,
This is a pivot load hinge having a pivot load for rotatably supporting the display unit 10, and as shown in FIGS. 4 and 5, in the first embodiment, one turn is provided on the left side and three turns are provided on the right side. Each of the dynamic load hinges 14 is provided. It should be noted that the structure of the rotating load hinge 14 and one on the left side and three on the right side
The reason for the provision will be described in detail later. 1
Reference numeral 5 denotes a cover for covering the rotating load hinge 14 attached to the back surface of the display unit 10, and is provided to improve the appearance and prevent foreign substances from getting into the rotating load hinge 14. .

FIGS. 6 and 7 are views showing a use state of the flat panel display device according to the first embodiment of the present invention. FIG. 6 shows a case where the display unit 10 is inclined by 10 ° to the depression angle side, and FIG. Each of the cases where the display unit 10 is inclined by 30 ° to the elevation angle side is shown, but it is needless to say that the inclination angle is not limited to the illustrated angle. That is, as will be apparent from the following description, according to the present invention, the display unit 10 can be tilted to an arbitrary angle on either the depression angle side or the elevation angle side by the function of the rotation load hinge 14 having the rotation load. In addition, the display unit 10 can be stably held and fixed at the angular position.

FIG. 8 is an enlarged view showing the details of the rotating load hinge 14, and FIG. 9 is an exploded perspective view showing the rotating load hinge 14 for easy understanding. 8 and 9, reference numeral 14a denotes a first hinge piece having one end fixed to the support piece 12a of the support base via a mounting hole 14b with a screw 14c or the like, and 14d is provided at the other end of the first hinge piece. A fixed rotating shaft having a circular cross section, a notch 14e of which a part is cut off at both ends according to the illustrated example, is provided with a first hinge piece. The other end of 14a is wound and fixed. The means for fixing the first hinge piece 14a and the rotating shaft 14d does not have to be the one shown in the figure, but may be other fixing means such as welding if it can be fixed securely. . Reference numeral 14f denotes an extra portion of the rotating shaft 14d, and the rotating shaft 14 has a circular cross section in the illustrated example.
d is a wound member wound in a press-contact state on the peripheral surface at the center of the center portion d. The turn member is crimped through a spring member 14g and a leaf spring member 14h for obtaining a good press-contact state as described later. It is wound in a pressure contact state on the peripheral surface at the center of the driving shaft 14d.

Reference numeral 14i denotes a second hinge piece, one end of which is fixed to the mounting piece 13 on the rear face of the display unit via a mounting hole 14j with a screw 14k or the like.
The other end of i is provided with a cut-and-raised portion 14n having a guide hole 14m to be inserted into the rotation shaft 14d.
The second hinge piece 14i and the winding member 14f are
The spring material 14g and the leaf spring material 14h are integrally caulked together with the rivet 14p and the washer 14q. The press-contact of the winding member 14f to the rotating shaft 14d may be performed by bolting with a bolt and a nut instead of the above-described caulking, and the press-contact force can be arbitrarily adjusted by bolting. . 14r
Is a ring washer inserted between the cut-and-raised portion 14n of the second hinge piece 14i and the first hinge piece 14a on the rotating shaft 14d to make the movement between the hinge pieces 14a and 14i smooth. It is for.

As described above, the flat display device according to the present invention has the winding member 14f fixed to the second hinge piece 14i.
Is pressed against the peripheral surface of the rotating shaft 14d fixed to the first hinge piece 14a, so that a large frictional force can be obtained. Even if the weight of the PDP is large and its screen is large, the display unit 10 can be stably held at a desired angle position as shown in FIGS. Moreover, there is no part that deteriorates over time, and therefore, a stable holding force can be maintained for a long period of time.

Further, as is apparent from the above description, the rotating load hinge 14 is formed in a plate shape and has a small thickness, and therefore does not impair the proposition of the flat display device to be made thin. Thus, a desired tilt function can be exhibited. According to the experiment of the applicant, the hinge thickness is 10 m.
At m, a rotation load value of 25 kgf · cm was realized, although not a peak value, and it was assured that this could withstand 10,000 rotations. In the above example, the first hinge piece 14a is fixed to the support piece 12a of the support base 12, and the second hinge piece 14i is fixed to the mounting piece 13 on the back surface of the display unit. Of the hinge piece 14a on the back of the display unit 13
Then, the second hinge piece 14i is connected to the support piece 12a of the support base 12.
It is clear in light of the above description that the same operation as described above can be realized even if it is fixed to the above.

The flat display device according to the present invention has the following features in addition to the above-mentioned stable holding force. That is, if the screen of the display unit 10 becomes large and the right and left weights across the center line become unbalanced, the display unit 10 is twisted when it is rotated, and the display unit 10 cannot be smoothly rotated. . In particular, as described in the first embodiment, in the case where the power supply circuit unit 11 including the control circuit is mounted on the back surface of the display unit 10, in order to make the power cord 11c invisible from the front surface of the display unit, The power supply circuit unit 11 is attached to one side (the right side in FIG. 4) of the back of the display unit, so that the left and right weights sandwiching the center line of the display unit 10 (the center line of the back of the display unit 10) are further unbalanced. Thus, smooth rotation of the display unit 10 becomes more and more difficult. Therefore, in the present invention, as shown in FIG. 4, if the number of the rotation load hinges 14 provided on both sides of the center line of the display unit 10 is changed, the rotation load values of the rotation load hinges on both sides are different from each other. I try to make it. By making the rotation load values different on both sides, the weight imbalance of the display unit 10 is absorbed by the rotation load hinge 14, and the display unit 10 can be smoothly rotated.

In FIG. 4, one means is provided on the left side and three means are provided on the right side as means for differentiating the rotation load values of the rotation load hinges on both sides of the center line. Needless to say,
In short, the number may be selected according to the weight imbalance of the display unit 10 and the rotational load values on both sides may be different. According to the illustrated example, it is sufficient to prepare pivot load hinges having the same pivot load value, so that standardization in manufacturing and assembly becomes possible. Various means other than the above may be considered as means for making the rotation load values different on both sides of the center line of the display unit 10. For example, it is conceivable to make the rotation load values of the individual rotation load hinges 14 different. In other words, the means for changing the number of rotation loads on both sides by changing the number is the rotation load hinge 1
4 is assumed to be the same, but one rotating load hinge 14 is provided on each side of the display unit 10 across the center line, and each rotating load hinge 14 itself The same operation can be expected even if the rotation load values of the above are changed.

Further, even if the rotation load hinges 14 are provided at asymmetric positions with respect to the center line of the display unit 10, respectively, the rotation load values on both sides of the display unit 10 with the center line interposed therebetween are different. That is, the same operation as described above can be realized. These pivot load hinges 14
The rotation load value of itself is made different or the display unit 1
If the rotation load hinges 14 are provided at asymmetric positions sandwiching the center line of 0, one rotation load hinge 14 may be provided on each side of the display unit 10 across the center line. The advantage of small size is obtained. In this case, the horizontal extension 12c provided above the support piece 12a shown in FIG. 4 can be omitted. That is, the extension portion 12c is provided to secure a mounting position when a large number of the rotation load hinges 14 are provided.

The flat panel display according to the present invention further has the following features. In the first embodiment, as shown in FIGS. 4 and 5, in particular, a recess 10 d is formed in the lower rear portion of the display unit 10, and external terminals are provided on the top surface of the recess 10 d, that is, on the bottom surface of the display unit 10. 10e is provided, and a connector 10f is inserted and connected to the external terminal 10e. By the way, the insertion and removal of the connector 10f is naturally performed from the back of the display unit, but a certain amount of space is required for the insertion and removal work. In order to obtain this working space, in the present invention, a support base 12 having a T-shaped cross section is used.
Is divided into two on the left and right. By dividing the support base 12, a space can be obtained in the vicinity of the installation location of the external terminal 10e, and this space can be used as a work space for inserting and removing the connector 10f. Can be saved, and even if the installation surface is not flat, it can be expected to have a secondary effect of being easily adapted to the installation surface.

When the display 12 is rotated when the support base 12 is divided, the rotation load hinges 1 on both sides are particularly required.
4 are different from each other, two support bases 1
No uniform rotation load is applied to the two support bases 12 and 12,
There is a possibility that a twist occurs between the twelve 12 and the smooth rotation of the display unit 10 is reduced. In order to eliminate this fear, in the present invention, the base plates 12b, 12b of the support bases 12, 12 are connected by a connecting member 12d, and the support bases 12, 12 are integrated. Of course, by providing the connecting member 12d, the connecting member 12d is made of a thin plate in order to minimize a reduction in the work space for inserting and removing the connector 10f.
This is connected between the bottom surfaces of the support base plates 12b, 12b.

Second Embodiment FIGS. 10 and 11 are a front view and a rear view showing a flat display device according to a second embodiment of the present invention.
The power supply circuit section 11 including the control circuit, the mounting piece 13, the rotating load hinge 14, and the cover 15 are the same as those of the first embodiment.
Are omitted since they are the same as those shown in FIG. Now, according to the second embodiment, the support base 12 is configured as follows. First, the length of the base plate 12b of the support base 12 is made smaller than the width of the display unit 10. The pair of support pieces 12a, 12a extend obliquely upward from the base plate 12b toward both sides of the display unit 10. Therefore, it is needless to say that the side surface is T-shaped as shown in FIGS. 2 and 3 although not shown in the drawings.

According to the second embodiment, as clearly seen from FIG. 10, since the support base 12 is smaller than the display unit 10 when viewed from the front, the size of the display unit 10 can be relatively emphasized. A flat display device having a novel design can be obtained. Also, a pair of support pieces 12a, 12a
Since it is configured to extend obliquely upward from the base plate 12b to both sides of the display unit 10, a connector for inserting and removing a connector into and from an external terminal 10e (not shown) provided on the top surface of the recess 10d. Work space is adequately secured.

Third Embodiment FIGS. 12 and 13 are a front view and a rear view, respectively, showing a flat panel display according to a third embodiment of the present invention. Support piece 1
2a and 12a are brought into contact with each other at the center.
According to the third embodiment, there is no gap between the foot portions of the two support pieces 12a, 12a, that is, the attachment portion to the base plate 12b, and it is possible to provide a flat display device that goes one step further in terms of design. I can say. Note that the third embodiment
In this case, if the pair of support pieces 12a, 12a are formed not integrally but integrally, the support strength of the support base 12 can be further increased, and the degree of freedom in designing or manufacturing can be increased. . Furthermore, if the height of the central portion of the pair of support pieces 12a, 12a, that is, the abutting portion of both, is larger than the distance between the lower end of the display unit 10 and the upper surface of the base plate 12b, the display is performed when viewed from the front. There is no gap between the part 10 and the support piece 12a,
Since the connector 10f and the connection cord 10g on the back are hidden from the view from the front, it is possible to obtain a flat display device which is superior in design, such as being visually clear, and displays the current tilt angle if necessary. Such as
The central portion of the pair of support pieces 12a, 12a can be used for some display surface.

Fourth Embodiment FIGS. 14 and 15 are installation diagrams showing a use state of a flat display device according to a fourth embodiment of the present invention. FIG. 14 shows a case where the flat display device is installed on a ceiling, and FIG. Each is shown. 14 and 15, 12e is a mounting hole provided in the base plate 12b of the support base 12, 12f is a mounting bolt,
6 is a ceiling and 17 is a wall. In this manner, by providing the mounting holes 12e in the base plate 12b of the support base 12, the support base 12 can be easily mounted on the ceiling 16 or the wall surface 17 via the mounting bolts 12f. Then, if the mounting bolt 12f is removed, it can be installed on the floor without any other work. At that time, the mounting holes 12
It goes without saying that e does not hinder floor installation.

Fifth Embodiment FIG. 16 is a view showing another example of the rotating load hinge of the flat panel display according to the fifth embodiment of the present invention, and the same or corresponding parts as those in FIG. Reference numerals are used, and a winding member 14f, a spring member 14g, a leaf spring member 14h, and a washer 14q are the same as those in FIG. 8, but are omitted for the sake of simplicity. Now, in FIG. 16, 14s1 is the first engagement piece attached to the first hinge piece 14a, and 14t1 is the second engagement piece.
When the amount of rotation of the display unit 10 toward the depression angle reaches a predetermined value, the first engagement piece 14
It is a second engagement piece that engages with s1. 14s2 is another first engagement piece attached to the first hinge piece 14a, 1
Reference numeral 4t2 denotes another second engagement piece 14s2 formed integrally with the second hinge piece 14i and engaged with the first engagement piece 14s2 when the amount of rotation of the display unit 10 toward the elevation angle reaches a predetermined value. Are the engagement pieces.

According to the fifth embodiment, the first engagement piece 14s1 or 14s2 and the second engagement piece 14t1 or 14t2 serve as stoppers, and the predetermined value of the display unit 10 on the depression angle or the elevation angle Since the rotation amount described above can be restricted, even if the rotation load of the rotation load hinge 14 is reduced and the display unit 10 suddenly automatically rotates, It is possible to prevent the object from colliding with and damaging the object. In the above example, the second engagement piece 14t2 is formed integrally with the second hinge piece 14i. However, this is formed separately, and the second engagement piece 1 is formed.
The same operation can be expected when 4t2 is attached to the second hinge piece 14i by any attachment means such as bolting or welding. Further, in the above example, the second hinge piece 14i and the mounting piece 13 are fixed by welding, but it goes without saying that the second hinge piece 14i and the mounting piece 13 may be fixed by bolting as in FIG.

Sixth Embodiment FIG. 17 is a view showing still another example of the rotating load hinge of the flat panel display according to the sixth embodiment of the present invention. The same or corresponding portions as those in FIG. The same reference numerals are given. In FIG. 17, reference numeral 14s designates a first portion 14sa attached to the first hinge piece 14a, an engagement portion 14sb having a U-shaped cross section connected to the attachment portion, and a key portion 14sc connected to the engagement portion. The first engagement piece 14t includes an engagement portion 14ta attached to the second hinge piece 14i, an engagement portion 14tb rising from the attachment portion, and a key portion 14tc connected to the engagement portion. Part 14tb
Is a second engaging piece having an L-shaped cross section that engages with the engaging portion 14sb of the first engaging piece 14s.

To explain the operation of FIG.
When 0 pivots toward the depression angle side to the position shown by the dashed line in the figure, the second engagement piece 14t attached to the second hinge piece 14i also rotates to the position shown by the dashed line.
Then, when reaching this position, the engaging portion 14tb of the second engaging piece 14t engages with the engaging portion 14sb of the first engaging piece 14s, thereby restricting further rotation of the display unit 10. Conversely, when the display unit 10 is tilted to the elevation angle side to the position shown by the two-dot chain line in the figure, the second engagement piece 14t also turns to the position shown by the two-dot chain line, and Engagement part 14t of mating piece 14t
b engages with the engaging portion 14sb of the first engaging piece 14s, thereby restricting the display unit 10 from rotating further. The range for restricting this rotation is set by setting the length L of the engaging portion 14sb of the first engaging piece 14s shown in the drawing to a desired value.
It can be set to any range.

According to the sixth embodiment, the pair of engagement pieces 14s and 14t can restrict the rotation on both the depression angle and the elevation angle, and therefore, the stopper having a simple structure that does not require a large mounting area. Can be realized. In FIG. 17, the first engagement piece 14s is attached to the first hinge piece 14a, and the second engagement piece 14t is attached to the second hinge piece 14i, but the relationship is reversed. The first engagement piece 14s is connected to the second hinge piece 14i.
And the second engagement piece 14t is attached to the first hinge piece 14
The same operation can be realized even if the device is attached to a.

In FIG. 17, the first engagement piece 14s and the first hinge piece 14a and the second engagement piece 14t and the second hinge piece 14i are separately formed. Can be integrally formed.
Further, in FIG. 17, key portions 14sc and 14tc are formed on the first engagement piece 14s and the second engagement piece 14t, respectively. But this key part 14s
c and 14tc are not indispensable, and even if they are omitted, by engaging the engaging portion 14sb of the first engaging piece 14s with the engaging portion 14tb of the second engaging piece 14t, It is needless to say that the sufficient stopper function can be obtained.

[0051]

Since the present invention is configured as described above in detail, the following effects can be obtained.

According to the first aspect of the invention, the first hinge piece having one end fixed to the display unit or the support base and the rotating shaft fixed to the other end is pressed against the peripheral surface of the rotating shaft. Since the rotating load hinge having a second hinge piece having the wound member at one end and the other end fixed to the support base or the display unit is used, a large frictional force, that is, a rotational load is obtained, Therefore, even if the weight of the display unit increases, the display unit can be stably held at a desired angle position. Moreover, there is no part that deteriorates over time, and therefore, a stable holding force can be maintained for a long period of time. Furthermore, since the rotation load values of the rotation load hinges provided on both sides of the center line of the display unit are made different, even if the display unit has a weight imbalance, it can be absorbed. Can be smoothly rotated.

According to the second aspect of the present invention, the rotation load hinges having the same rotation load value are used, and the numbers of the rotation load hinges on both sides of the center line of the display section are different, so that the rotation load values on both sides are reduced. Because of the difference, standardization in manufacturing and assembly can be achieved.

According to the third aspect of the present invention, the pivot load hinges are provided at the asymmetrical positions with respect to the center line of the display unit, so that the pivot load hinge values are different on both sides. It is sufficient to provide one on each side, and the mounting location can be small.

According to the fourth aspect of the present invention, the support base having the T-shaped cross section, which is composed of the base plate for supporting the display unit and the support piece, is divided into two on both sides of the display unit. A space can be obtained in the lower part, and the connector can be easily inserted into and removed from external terminals provided on the bottom surface of the display unit.

According to the fifth aspect, since the base plates of the divided support bases are connected by the connecting member, it is possible to prevent the twist between the support bases while securing a space for inserting and removing the connector. Therefore, smooth rotation of the display unit can be realized.

According to the sixth aspect, the support base is constituted by the base plate having a length smaller than the width of the display unit, and a pair of support pieces extending from the base plate toward both sides of the display unit. Therefore, it is possible to obtain a flat display device having a novel design in which the size of the display section is emphasized while securing a space for inserting and removing the connector.

According to the seventh aspect, the pair of support pieces extending from the base plate toward the both sides of the display unit are brought into contact with each other at the center, so that there is no gap at the foot of the support piece. Further, a flat display device having a novel design can be obtained.

According to the eighth aspect, the pair of support pieces extending from the base plate toward both sides of the display unit are integrally formed. Therefore, a novel design having no gap at the foot of the support piece is provided. A flat display device capable of increasing the supporting strength while maintaining the same can be obtained.

According to the ninth aspect, the central portion of the pair of support pieces extending from the base plate toward both side portions of the display unit is made larger than the distance between the lower end of the display unit and the base plate. When viewed, a flat display device having a more novel design with no gap between the display portion and the support piece can be obtained.

According to the tenth aspect, since the mounting holes are provided in the base plate of the support table, the mounting on the ceiling or the wall surface becomes easy, and the floor surface can be adjusted according to the use environment or the user's preference. The optimal installation location can be arbitrarily selected.

According to the eleventh aspect, the first engagement piece is attached to the first hinge piece fixed to the display unit or the support, and the second engagement piece is fixed to the second hinge piece fixed to the support or the display. 2 and the first and second engaging pieces are engaged when the amount of rotation of the display unit reaches a predetermined value. Thus, even if the display unit automatically rotates, the display unit can be prevented from colliding with another object and being damaged.

According to the twelfth aspect, the first engaging piece is constituted by the attaching portion to the first hinge piece and the engaging portion having a U-shaped cross section connected to the attaching portion, and The engaging piece is formed to have an L-shaped cross section including an attaching portion to the second hinge piece and an engaging portion that engages with the engaging portion of the first engaging piece rising from the attaching portion. Therefore, the amount of rotation of the display unit on both the depression angle and the elevation angle can be limited by the pair of engagement pieces, and therefore, a thorough safety measure can be realized with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a front view showing a flat panel display according to a first embodiment.

FIG. 2 is a left side view showing the flat panel display according to the first embodiment.

FIG. 3 is a right side view showing the flat panel display according to the first embodiment.

FIG. 4 is a rear view showing the flat panel display according to the first embodiment.

FIG. 5 is a sectional view taken along the line VV of FIG. 4 according to the first embodiment;

FIG. 6 is a right side view showing a use state in which the flat panel display according to the first embodiment is inclined to the depression angle side.

FIG. 7 is a right side view showing a use state in which the flat panel display according to the first embodiment is tilted to the elevation angle side.

FIG. 8 is an enlarged view showing details of a rotating load hinge used in the flat panel display according to the first embodiment.

FIG. 9 is an exploded perspective view showing details of a rotating load hinge used in the flat panel display according to the first embodiment in a more easily understood manner.

FIG. 10 is a front view showing a flat panel display according to a second embodiment.

FIG. 11 is a rear view showing the flat panel display according to the second embodiment.

FIG. 12 is a front view showing a flat panel display according to a third embodiment.

FIG. 13 is a rear view showing the flat panel display according to the third embodiment.

FIG. 14 is a right side view showing an installation state in which the flat panel display according to the fourth embodiment is installed on a ceiling.

FIG. 15 is a right side view showing an installation state in which the flat panel display according to the fourth embodiment is installed on a wall surface.

FIG. 16 is a diagram showing another example of the rotation load hinge of the flat panel display according to the fifth embodiment.

FIG. 17 is a diagram showing still another example of the rotating load hinge of the flat panel display according to the sixth embodiment.

FIG. 18 is a schematic view showing a tilt mechanism in a conventional flat panel display.

[Explanation of symbols]

10 display section, 10d recessed section, 10e external terminal, 1
0f connector, 10g connection cord, 11 power circuit including control circuit, 11a power socket, 11b power plug, 11c power cord, 11d power switch,
12 support base, 12a support piece, 12b base plate, 12d
Connection material, 12e mounting hole, 12f mounting bolt, 13
Mounting piece, 14 rotating load hinge, 14a first hinge piece, 14d rotating shaft, 14f winding member, 14i second hinge piece, 14s, 14s1, first engaging piece, 14s
2 Another first engaging piece, 14sa Attaching portion to first hinge piece, 14sb Engaging portion having U-shaped cross section, 14t, 14
t1 second engagement piece, 14t2 another second engagement piece, 1
4ta mounting part to the second hinge piece, 14tb engaging part,
15 covers, 16 ceilings, 17 walls.

Claims (12)

[Claims] 1. A flat display unit, a support for supporting the display, and one end fixed to the display or the support,
A first hinge piece having the other end fixed to a part of the rotating shaft;
A winding member having a circular cross-section and pressed against the peripheral surface of the remaining portion of the rotation shaft; a second member having one end fixed to the winding member and the other end fixed to the support base or the display unit; A flat display device comprising a rotating load hinge having a rotating load consisting of a hinge piece of the present invention, wherein both sides of a center line on the back of the display unit are supported by the rotating load hinge, respectively. Wherein the rotation load values of the rotation load hinges provided on the flat display device are different from each other. 2. The flat display device according to claim 1, wherein the number of pivot load hinges provided on both sides of the center line of the display unit is different. 3. The flat display device according to claim 1, wherein both sides of the rear surface of the display unit at asymmetric positions with respect to the center line of the display unit are supported by pivot load hinges. 4. A flat display portion, a support base supporting the display portion and having a T-shaped cross section composed of a base plate and a support piece, and one end fixed to the display portion or the support piece of the support base. A first hinge piece having the other end fixed to a part of the rotation shaft, a winding member having a circular cross section pressed against the peripheral surface of the remaining portion of the rotation shaft, A flat display device comprising a rotating load hinge having a rotating load, one end of which is fixed, and the other end of which is a support piece of the support base or a second hinge piece fixed to a display unit. A flat display device, wherein both sides sandwiching the center line of the back surface of the display unit are supported by the rotating load hinges, and the support base is divided into two. 5. The flat display device according to claim 4, wherein the base plates of the two support bases are connected by a connecting member. 6. A flat display portion, a base plate supporting the display portion and having a length smaller than the width of the display portion, and a pair of support pieces extending from the base plate toward both side portions of the display portion. A first support member having one end fixed to the display portion or the support piece of the support and the other end fixed to a part of the rotation shaft.
Hinge piece, a winding member having a circular cross section and being pressed against the peripheral surface of the remaining portion of the rotating shaft, and one end fixed to the winding member, and the other end being a support piece of the support base or What is claimed is: 1. A flat display device comprising a rotating load hinge having a rotating load comprising a second hinge piece fixed to a display unit, wherein both sides sandwiching a center line of a back surface of the display unit include the rotating load hinge. A flat display device characterized by being supported by each of the following. 7. The flat display device according to claim 6, wherein a pair of support pieces are in contact with each other at a central portion. 8. The flat display device according to claim 6, wherein the pair of support pieces are formed integrally. 9. The flat display device according to claim 6, wherein a height of a central portion of the pair of support pieces is larger than a distance between a lower end of the display unit and the base plate. 10. The flat display device according to claim 1, wherein mounting holes are provided in a base plate of the support base. 11. A first hinge piece having one end fixed to a display unit or a support base and the other end fixed to a part of a rotation shaft, and a circumference of an extra portion of the rotation shaft having a circular cross section. A winding member pressed against the surface, a second hinge piece having one end fixed to the winding member and the other end fixed to the support base or the display section, and a second hinge piece attached to the first hinge piece. A second engagement piece attached to the first engagement piece and the second hinge piece and engaged with the first engagement piece when a rotation amount reaches a predetermined value. Rotating load hinge for flat panel display. 12. The first engaging piece is formed by a mounting portion to the first hinge piece and an engaging portion having a U-shaped cross section connected to the mounting portion, and the second engaging piece is formed by: It is formed in an L-shaped cross section including a mounting portion to the second hinge piece and an engaging portion rising from the mounting portion and engaging with the engaging portion of the first engaging piece. The hinge according to claim 11, wherein the hinge is a hinge.