U.S. patent application number 09/902156 was filed with the patent office on 2002-08-22 for hinge arrangement for a display apparatus.
Invention is credited to Shin, Jong-Hwa.
Application Number | 20020112318 09/902156 |
Document ID | / |
Family ID | 19705932 |
Filed Date | 2002-08-22 |
United States Patent
Application |
20020112318 |
Kind Code |
A1 |
Shin, Jong-Hwa |
August 22, 2002 |
Hinge arrangement for a display apparatus
Abstract
Disclosed is a display apparatus. The display apparatus
comprises a monitor for displaying image thereon; and a hinge
arrangement for rotatably connecting the monitor to a body and
thereby allowing a torque to be adjusted depending upon a rotation
angle of the monitor.
Inventors: |
Shin, Jong-Hwa; (Yongin
city, KR) |
Correspondence
Address: |
Robert E. Bushnell
Suite 300
1522 K Street, N.W.
Washington
DC
20005-1202
US
|
Family ID: |
19705932 |
Appl. No.: |
09/902156 |
Filed: |
July 11, 2001 |
Current U.S.
Class: |
16/319 |
Current CPC
Class: |
Y10T 16/54 20150115;
G06F 1/1616 20130101; Y10T 16/5403 20150115; G06F 1/1681 20130101;
E05D 11/087 20130101; E05Y 2900/606 20130101; Y10T 16/5478
20150115; Y10T 16/551 20150115; Y10T 16/54038 20150115; Y10S
248/919 20130101; Y10S 248/917 20130101; Y10T 16/540345
20150115 |
Class at
Publication: |
16/319 |
International
Class: |
E05D 011/10 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 19, 2001 |
KR |
2001/8224 |
Claims
What is claimed is:
1. A hinge arrangement for rotatably connecting a monitor to a body
comprising: a fixed bracket which is fastened to the body; a
rotating bracket which is fastened to the monitor and is capable of
being rotated relative to the fixed bracket; at least one adjusting
bracket which is located adjacent to a first side surface the
rotating bracket to adjust a torque applied to the rotating bracket
as the rotating bracket passes a predetermined rotation angle; and
a hinge shaft which is fitted through the fixed bracket, the
rotating bracket and the adjusting bracket.
2. The hinge arrangement as set forth in claim 1, further
comprising a second adjusting bracket mounted on said hinge shaft,
said second adjusting bracket being located adjacent to a second
side surface of the rotating bracket to adjust the torque applied
to the rotating bracket as the rotating bracket passes a second
predetermined rotation angle.
3. The hinge arrangement as set forth in claim 1, wherein the
torque applied to the rotating bracket before the rotating bracket
passes said first predetermined rotation angle is constant, and is
increased as the rotating bracket passes said first predetermined
rotation angle.
4. The hinge arrangement as set forth in claim 2, wherein the
torque applied to the rotating bracket before the rotating bracket
passes said first predetermined rotation angle is constant, is
increased as the rotating bracket passes said first predetermined
rotation angle and is further increased as the rotating bracket
passes said second predetermined rotation angle.
5. The hinge arrangement as set forth in claim 1, said hinge shaft
comprising: a first shaft portion mounted through a shaft hole in
said fixed bracket; a second shaft portion on which said rotating
bracket and said adjusting bracket are rotatably mounted; and a
flange positioned between said first and second shaft portions.
6. The hinge arrangement as set forth in claim 1, further
comprising: a first friction member mounted on said hinge shaft
between said adjusting bracket and said rotating bracket; and a
pair of spring washers mounted on said hinge shaft between said
fixed bracket and said adjusting bracket.
7. The hinge arrangement as set forth in claim 5, further
comprising: a first friction member mounted on said second shaft
portion and disposed between said adjusting bracket and said
rotating bracket; and a pair of spring washers mounted on said
second shaft portion and disposed between said flange and said
adjusting bracket.
8. The hinge arrangement as set forth in claim 2, said hinge shaft
comprising: a first shaft portion mounted through a shaft hole in
the fixed bracket; a second shaft portion on which the rotating
bracket and both adjusting brackets are rotatably mounted; and a
flange positioned between said first and second shaft portions.
9. The hinge arrangement as set forth in claim 8, further
comprising: a first friction member mounted on said second shaft
portion and disposed between said at least one adjusting bracket
and said rotating bracket; and a pair of spring washers mounted on
said second shaft portion and disposed between said flange and said
at least one adjusting bracket.
10. The hinge arrangement as set forth in claim 9, further
comprising: a second friction member mounted on said second shaft
portion and disposed between said second adjusting bracket and said
rotating bracket; a nut threaded on a threaded section of said
second shaft portion; a flat washer mounted on said second shaft
portion adjacent to said nut; and a second pair of spring washers
mounted on said second shaft portion and disposed between said flat
washer and said second adjusting bracket.
11. The hinge arrangement as set forth in claim 1, said adjusting
bracket comprising: a planer V shaped portion angled at said
predetermined rotation angle; and at least one stopper which
contacts with an edge surface of the rotating bracket when the
rotating bracket reaches said predetermined rotation angle.
12. The hinge arrangement as set forth in claim 1, said adjusting
bracket comprising: a planer V shaped portion angled at said
predetermined rotation angle with respect to a vertical axis; a
first stopper extending horizontally from and perpendicular to a
first distal end of said adjusting bracket, characterized in that
said first stopper contacts with an edge surface of the rotating
bracket when the rotating bracket reaches said predetermined
rotation angle when said monitor is tilted up and away from a user;
and a second stopper extending horizontally from and perpendicular
to a second distal end of said adjusting bracket, characterized in
that said second stopper contacts with said edge surface of the
rotating bracket when the rotating bracket reaches said
predetermined rotation angle when said monitor is tilted toward
said user.
13. The hinge arrangement as set forth in claim 2, said second
adjusting bracket comprising: a planer V shaped portion angled at
said second predetermined rotation angle with respect to a vertical
axis; a first stopper extending horizontally from and perpendicular
to a first distal end of said second adjusting bracket,
characterized in that said first stopper contacts with an edge
surface of the rotating bracket when the rotating bracket reaches
said second predetermined rotation angle when said monitor is
tilted up and away from a user; and a second stopper extending
horizontally from and perpendicular to a second distal end of said
second adjusting bracket, characterized in that said second stopper
contacts with said edge surface of the rotating bracket when the
rotating bracket reaches said second predetermined rotation angle
when said monitor is tilted toward said user.
14. A hinge arrangement for rotatably connecting a monitor to a
body comprising: a fixed bracket which is fastened to the body; a
rotating bracket which is fastened to the monitor and is capable of
being rotated relative to the fixed bracket; at least one adjusting
bracket which is located adjacent to a first side surface the
rotating bracket to adjust a torque applied to the rotating bracket
as the rotating bracket passes a predetermined rotation angle; a
hinge shaft which is fitted through the fixed bracket, the rotating
bracket and the adjusting bracket; a first friction member mounted
on said hinge shaft between said adjusting bracket and said
rotating bracket; and a pair of spring washers mounted on said
hinge shaft between said fixed bracket and said adjusting
bracket.
15. The hinge arrangement as set forth in claim 14, said hinge
shaft comprising: a first shaft portion mounted through a shaft
hole in said fixed bracket; a second shaft portion on which said
rotating bracket and said adjusting bracket are rotatably mounted;
and a flange positioned between said first and second shaft
portions, said flange being disposed to contact said fixed bracket
to permit only said first shaft portion to pass through said shaft
hole in said fixed bracket.
16. The hinge arrangement as set forth in claim 15, further
comprising: a second adjusting bracket mounted on said hinge shaft,
said second adjusting bracket being located adjacent to a second
side surface of the rotating bracket to adjust the torque applied
to the rotating bracket as the rotating bracket passes a second
predetermined rotation angle; a second friction member mounted on
said second shaft portion and disposed between said second
adjusting bracket and said rotating bracket; a nut threaded on a
threaded section of said second shaft portion; a flat washer
mounted on said second shaft portion adjacent to and in contact
with said nut; and a second pair of spring washers mounted on said
second shaft portion and disposed between said flat washer and said
second adjusting bracket.
17. The hinge arrangement as set forth in claim 14, said adjusting
bracket comprising: a planer V shaped portion angled at said
predetermined rotation angle with respect to a vertical axis; a
first stopper extending horizontally from and perpendicular to a
first distal end of said adjusting bracket, characterized in that
said first stopper contacts with an edge surface of the rotating
bracket when the rotating bracket reaches said predetermined
rotation angle when said monitor is tilted up and away from a user;
and a second stopper extending horizontally from and perpendicular
to a second distal end of said adjusting bracket, characterized in
that said second stopper contacts with said edge surface of the
rotating bracket when the rotating bracket reaches said
predetermined rotation angle when said monitor is tilted toward
said user.
18. The hinge arrangement as set forth in claim 16, said second
adjusting bracket comprising: a planer V shaped portion angled at
said second predetermined rotation angle with respect to a vertical
axis; a first stopper extending horizontally from and perpendicular
to a first distal end of said second adjusting bracket,
characterized in that said first stopper contacts with an edge
surface of the rotating bracket when the rotating bracket reaches
said second predetermined rotation angle when said monitor is
tilted up and away from a user; and a second stopper extending
horizontally from and perpendicular to a second distal end of said
second adjusting bracket, characterized in that said second stopper
contacts with said edge surface of the rotating bracket when the
rotating bracket reaches said second predetermined rotation angle
when said monitor is tilted toward said user.
19. The hinge arrangement as set forth in claim 18, wherein the
torque applied to the rotating bracket before the rotating bracket
passes said first predetermined rotation angle is constant, is
increased as the rotating bracket passes said first predetermined
rotation angle and is further increased as the rotating bracket
passes said second predetermined rotation angle.
Description
CLAIM OF PRIORITY
[0001] This application makes reference to, incorporates the same
herein, and claims all benefits accruing under 35 U.S.C .sctn.119
from an application entitled Display earlier filed in the Korean
Industrial Property Office on Feb. 19, 2001, and there duly
assigned Serial No. 2001-8224 by that Office.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to a hinge arrangement, and
more particularly, the present invention relates to a hinge
arrangement for connecting a display apparatus with a body is
improved.
[0004] 2. Description of the Related Art
[0005] Conventionally, a display apparatus serves as an image
display unit including a cathode ray tube (CRT) monitor or a liquid
crystal display (LCD) monitor. The display apparatus generally
embraces a monitor which is used with a computer, and its
peripherals. Herein, as an example of a conventional display
apparatus, a display apparatus which is used in a notebook
computer, will be described.
[0006] A computer is composed of a body, a monitor and an input
unit. In the body, there are arranged a main board having mounted
thereto a central processing unit (CPU), a random access memory
(RAM), a disk driver, and a variety of cards such as a graphic
card, sound card, etc. The monitor is electrically connected to the
body to display an image thereon. The input unit includes a
keyboard which is used for inputting information into the body, a
mouse, etc.
[0007] A hinge arrangement is disposed between the body and the
monitor so as to rotatably support the monitor relative to the
body. The hinge arrangement enables the monitor to be tilted
relative to the body in upward and downward directions.
[0008] However, the conventional display apparatus suffers from
defects in that, since a torque which is owned by the hinge
arrangement within the range of a rotation angle of the monitor, is
constant, it is difficult to optionally increase a rotation angle
of the monitor relative to the body.
[0009] For example, in the case that a torque of the hinge
arrangement is adjusted in such a way as to allow the range of a
rotation angle of the monitor relative to the body to be set to
45.degree., the monitor can be rotated up to 45.degree. without
experiencing trouble. Nevertheless, when it is necessary to rotate
the monitor beyond the range of 45.degree., a great deal of effort
is needed for rotating the monitor.
[0010] On the contrary, in the case that a torque of the hinge
arrangement is adjusted to a slight value, while the monitor can be
easily rotated, it is difficult to continuously hold the monitor at
a desired rotation angle.
SUMMARY OF THE INVENTION
[0011] Accordingly, the present invention has been made in an
effort to solve the problems occurring in the related art, and an
object of the present invention is to provide a hinge arrangement
for a display apparatus which enables a torque to be adjusted in a
diversity of ways depending upon a rotation angle of a monitor.
[0012] In order to achieve the above object, according to one
aspect of the present invention, there is provided a monitor for
displaying an image thereon and a hinge arrangement for rotatably
connecting the monitor to a body and thereby allowing a torque to
be adjusted depending upon a rotation angle of the monitor.
[0013] Here, the hinge arrangement includes a fixed bracket which
is fastened to the body, a rotating bracket which is fastened to
the monitor and is capable of being rotated relative to the fixed
bracket, at least one adjusting bracket which is located adjacent
to the rotating bracket to limit a rotation angle of the rotating
bracket, and a hinge shaft which is fitted through the fixed
bracket, the rotating bracket and the adjusting bracket.
[0014] The hinge arrangement possesses a first adjusting bracket
which is located adjacent to one surface of the rotating bracket
which one surface faces the fixed bracket and a second adjusting
bracket which is located adjacent to the other surface of the
rotating bracket; and each of the first and second adjusting
brackets is formed with at least one stopper which is to be brought
into contact with an edge surface of the rotating bracket to limit
the rotation angle of the rotating bracket.
[0015] A pair of stoppers are formed at both ends, respectively, of
each of the first and second adjusting brackets. Each stopper
projects toward the rotating bracket from a surface of each
adjusting bracket. Lengths of the first and second adjusting
brackets are smaller than a length of the rotating bracket. It is
advantageous that the first and second adjusting brackets are bent
at center portions thereof by predetermined angles, relative to the
rotating bracket.
[0016] Friction members are intervened between the rotating bracket
and the first and second adjusting brackets in a manner such that
the pair of friction members are fitted around the hinge shaft. The
friction members are made of soft rubber.
[0017] A nut is threaded on the hinge shaft so as to prevent the
brackets from being separated from the hinge shaft.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] A more complete appreciation of the present invention, and
many of the attendant advantages thereof, will become readily
apparent as the same becomes better understood by reference to the
following detailed description when considered in conjunction with
the accompanying drawings in which like reference symbols indicate
the same or similar components, wherein:
[0019] FIG. 1 is a perspective view illustrating a notebook
(laptop) computer having a hinge apparatus connected between a body
and a display apparatus in accordance with an embodiment of the
present invention;
[0020] FIG. 2 is an enlarged view of the hinge arrangement at `A`
of FIG. 1;
[0021] FIG. 3 is an exploded perspective view illustrating a hinge
arrangement which is used with the display apparatus according to
the present invention; and
[0022] FIGS. 4 through 7 are side views illustrating operations of
the hinge arrangement in the display apparatus according to the
present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0023] Reference will now be made in greater detail to a preferred
embodiment of the invention, an example of which is illustrated in
the accompanying drawings.
[0024] Herein below, an embodiment of the present invention will be
described in connection with a notebook computer. In this
specification, a word "body" designates an element which is
connected with a display apparatus in accordance with the
embodiment of the present invention, such as a computer. However, a
person skilled in the art will readily recognize that the concept
of the present invention can be applied to a TV or the like in
which a body and a display apparatus are integrally formed with
each other.
[0025] A computer to which the display apparatus is hingedly
connected in accordance with the embodiment of the present
invention, has, as shown in FIG. 1, a body 1 and a monitor 4 which
is connected to the body 1 to display image thereon. In the body 1,
there are arranged components for a desired computer system. An
input unit (keyboard) 2 is also connected to the body 1 to allow
desired information to be input into the body 1. The monitor 4
cooperates with a hinge arrangement 100 (see FIG. 2) at `A` which
will be described in detail below, according to the present
invention.
[0026] As can be readily seen from FIG. 2, the hinge arrangement
100 is disposed between the body 1 and the monitor 4. The hinge
arrangement 100 enables the monitor 4 to be tilted relative to the
body 1 and allows a torque to be adjusted in a diversity of ways
depending upon a rotation angle of the monitor 4.
[0027] The hinge arrangement 100 includes a fixed bracket 10 which
is fastened to the body 1, a rotating bracket 20 which is affixed
to the monitor 4 to be rotated or tilted relative to the fixed
bracket 10, first and second adjusting brackets 30 and 40 which are
located adjacent to one surface and the other surface,
respectively, of the rotating bracket 20 to limit a rotation angle
of the rotating bracket 20, and a hinge shaft 50 which is fitted
through the fixed bracket 10, the rotating bracket 20 and the first
and second adjusting brackets 30 and 40.
[0028] As shown in FIGS. 2 and 3, the fixed bracket 10 has a
fastening portion 11 and a bent portion 14. The fastening portion
11 is defined with a plurality of first screw passing holes 12 in a
manner such that the fixed bracket 10 can be fastened to the body 1
at the fastening portion 11 by means of screws which pass through
the plurality of first screw passing holes 12, respectively. The
bent portion 14 is bent substantially perpendicular to the
fastening portion 11 and is defined with a first shaft hole 15 in a
manner such that the hinge shaft 50 can extend through the first
shaft hole 15, and the hinge shaft is prevented from rotating in
first shaft hole 15.
[0029] The rotating bracket 20 has an affixing portion 22 and an
elongated portion 24. The affixing portion 22 is defined with a
plurality of second screw passing holes 23 in a manner such that
the rotating bracket 20 can be affixed to the monitor 4 at the
affixing portion 22 by means of screws which pass through the
plurality of second screw passing holes 23, respectively. The
elongated portion 24 is bent substantially perpendicular to the
affixing portion 22 and is defined with a second shaft hole 25 in a
manner such that the hinge shaft 50 can extend through the second
shaft hole 25.
[0030] As described above, the first and second adjusting brackets
30 and 40 are located adjacent to the one planer surface 24a and
the other planer surface 24b, respectively, of the elongated
portion 24 of rotating bracket 20 to limit the rotation angle of
the rotating bracket 20. At this time, the first and second
adjusting brackets 30 and 40 are formed to have lengths which are
smaller than a length of the elongated portion 24 of rotating
bracket 20. As best shown in FIG. 4, the first and second adjusting
brackets 30 and 40 are bent (have a V bend) at center portions
thereof by predetermined angles of A1 and A2, respectively,
relative to the straight elongated portion 24 of rotating bracket
20.
[0031] The first and second adjusting brackets 30 and 40 are
defined with third and fourth shaft holes 33 and 44, respectively,
in a manner such that the hinge shaft 50 can extend through the
third 17 and fourth shaft holes 33 and 44. A pair of first stoppers
31a and 31b are formed at respective opposite ends of the first
adjusting bracket 30 and a pair of second stoppers 41a and 41b are
formed at respective opposite ends of the second adjusting bracket
40, in a manner such that the first stoppers 31a and 31b and the
second stoppers 41a and 41b are brought into contact with an edge
surface of the elongated portion 24 of rotating bracket 20 to limit
the rotation angle of the rotating bracket 20. The pair of first
stoppers 31a and 31b and the pair of second stoppers 41a and 41b
project from both ends of the first and second adjusting brackets
30 and 40 toward the rotating bracket 20. That is, the pair of
first stoppers 31a and 31b and the pair of second stoppers 41a and
41b extend horizontally from both ends of the vertically extending
first and second adjusting brackets 30 and 40 toward each other and
toward the rotating bracket 20.
[0032] A pair of friction members 70 are intervened between the
rotating bracket 20 and the first and second adjusting brackets 30
and 40, respectively, in a manner such that the pair of friction
members 70 are fitted around the hinge shaft 50. The friction
members 70 are made of soft rubber so as to present elasticity and
absorb friction upon rotation of the rotating bracket 20 relative
to the first and second adjusting brackets 30 and 40 disposed
between the first and second adjusting brackets 30 and 40.
[0033] The hinge shaft 50 has a first shaft portion 52 which is
inserted through the first shaft hole 15 of the fixed bracket 10,
and a second shaft portion 53 which is inserted through the second,
third and fourth shaft holes 25, 33 and 44. An externally threaded
portion 53a is formed on a circumferential outer surface of, and
adjacent to, a free end of the second shaft portion 53, and a
flange portion 55 is formed on a circumferential outer surface of
the hinge shaft 50 between the first shaft portion 52 and the
second shaft portion 53. A nut 60 is threaded to the threaded
portion 53a so as to prevent the brackets 20, 30 and 40 from being
separated from the hinge shaft 50.
[0034] A first pair of spring washers (or disk springs) 80 are
interposed between the flange portion 55 of the hinge shaft 50 and
the first adjusting bracket 30, and a second pair of spring washers
80 and a flat washer 90 are interposed between the second adjusting
bracket 40 and the nut 60. A pair of friction members 70 are
positioned adjacent to opposite sides of second shaft hole 25 and
space the first and second adjusting brackets 30 and 40 from the
elongated portion 24 of rotating bracket 20. Here, positions, kinds
and the numbers of the friction members 70, spring washers 80 and
the plain washer 90 can be varied as occasion and design
demands.
[0035] Hereinafter, a procedure for assembling the display
apparatus according to the present invention, constructed as
mentioned above, to the body 1, will be described in detail.
[0036] First, by inserting the screws through the plurality of
first screw passing holes 12 which are defined in the fastening
portion 11 of the fixed bracket 10, the fixed bracket 10 is
fastened to the body 1. Then, the first shaft portion 52 of the
hinge shaft 50 is inserted through the first shaft hole 15 which is
defined in the bent portion 14 of the fixed bracket 10. Thereupon,
after the pair of first spring washers 80 are fitted around the
second shaft portion 53 of the hinge shaft 50, the first adjusting
bracket 30 is fitted around the hinge shaft 50 in manner such that
the second shaft portion 53 of the hinge shaft 50 is inserted
through the third shaft hole 33 of the first adjusting bracket
30.
[0037] Next, after the rotating bracket 20 and the second adjusting
bracket 40 are sequentially fitted around the second shaft portion
53 of the hinge shaft 50 in a state wherein the pair of friction
members 70 are intervened between the rotating bracket 20 and the
first and second adjusting brackets 30 and 40, respectively, in a
manner such that the second shaft portion 53 of the hinge shaft 50
is inserted through the second shaft hole 25 of the rotating
bracket 20 and the fourth shaft hole 44 of the second adjusting
bracket 40, the pair of second spring washers 80 and the flat
washer 90 are fitted around the second shaft portion 53 of the
hinge shaft 50. Thereafter, the nut 60 is threadedly coupled to the
threaded portion 53a of the hinge shaft 50. By finally affixing the
rotating bracket 20 to the monitor 4 at the affixing portion 22,
the procedure for assembling the display apparatus according to the
present invention to the body 1 is completed. It is preferred that
a pair of hinge arrangements 100 are disposed between the body 1
and the monitor 4.
[0038] If assemblage of the display apparatus to the body 1 is
completed in this way, the rotating bracket 20 and the first and
second adjusting brackets 30 and 40 are configured as shown in FIG.
4. From this state, torque changes which occur when tilting the
rotating bracket 20 in a stepwise manner by predetermined angles of
A1, A2 and A3, will be explained below.
[0039] First, when the monitor is rotated backward, i.e., away from
the user, the rotating bracket 20 is first tilted to the angle of
A1, as shown in FIG. 5. The torque applied to the elongated portion
24 of rotating bracket 20 by friction members 70 is unchanged until
and the edge surface of the rotating bracket 20 is brought into
contact with the upper first stopper 31a of the first adjusting
bracket 30. At this time, unless force is additionally applied to
the rotating bracket 20, the rotating bracket 20 which is initially
tilted by the angle of A1, is not tilted any more due to engagement
between the edge surface of the rotating bracket 20 and the upper
first stopper 31a of the first adjusting bracket 30.
[0040] If the rotating bracket 20 is further tilted to the angle of
A2 so as to increase a tilting angle of the monitor 4, since the
edge surface of the rotating bracket 20 is engaged with the upper
first stopper 31a of the first adjusting bracket 30, the rotating
bracket 20 is tilted integrally with the first adjusting bracket
30. At this time, a greater amount of force is required when
compared to the case of tilting only the rotating bracket 20 to the
angle of A1 due to the force applied to the first adjusting bracket
30 by the first pair of spring washers 80.
[0041] When the rotating bracket 20 is further titled to the angle
of A2 as just described above, as can be readily seen from FIG. 6,
the edge surface of the rotating bracket 20 is brought into contact
with the upper second stopper 41a of the second adjusting bracket
40. In this state, upper portions of the rotating bracket 20 and
the first and second adjusting brackets 30 and 40 are overlapped
with one another as shown in FIG. 6.
[0042] If the rotating bracket 20 is further tilted to the angle of
A3, as can be readily seen from FIG. 7 so as to still further
increase a tilting angle of the monitor 4, a greater amount of
force is required when compared to the case of tilting the rotating
bracket 20 to the angle of A2 due to the force applied to the
second adjusting bracket 40 by the second pair of spring washers
80.
[0043] Likewise, in the case that the monitor is rotated in a
forward direction toward the user, which is opposite to the
backward direction as described above, the edge surface of the
rotating bracket 20 is first brought into contact with the lower
first stopper 31b of the first adjusting bracket 30, thereafter the
rotating bracket 20 is integrally tilted with the first adjusting
bracket 30. Then, due to further forward rotation of the monitor,
the the edge surface of the rotating bracket 20 is brought into
contact with the lower second stopper 41b of the second adjusting
bracket 40, and the rotating bracket 20 is integrally tilted with
the first and second adjusting brackets 30 and 40.
[0044] As a consequence, by adjusting a torque in a diversity of
ways in conformity with a tilt angle of the monitor 4, it is
possible to hold a tilt angle of the monitor 4 at a variety of
values, whereby an optimum viewing angle for the monitor 4 can be
reliably secured.
[0045] Additionally, an increased in torque occurs when tilting the
monitor towards a closed position, thereby preventing the monitor
from falling to the closed position absent user manipulation.
[0046] As a result, according to the present invention, a display
apparatus which enables a torque to be adjusted in a diversity of
ways depending upon a rotation angle of a monitor, is provided.
[0047] In the drawings and specification, there have been disclosed
typical preferred embodiments of the invention and, although
specific terms are employed, they are used in a generic and
descriptive sense only and not for purposes of limitation, the
scope of the invention being set forth in the following claims.
* * * * *