JP6519079B2 - Monitor hinge - Google Patents

Description

  The present invention relates to a monitor hinge which connects a plate-like monitor to a fixed part such as an office machine.

  Conventionally, many office equipment such as laptop PCs have a plate-like monitor on the upper surface of the fixed portion, and the closed state (open state) and the open state (open state) of the monitor with respect to the fixed portion And can be transitioned. At this time, the monitor is connected to the fixed part via the monitor hinge, and the monitor hinge can be opened and closed with respect to the fixed part by pivoting the monitor hinge (see, for example, Patent Document 1).

Unexamined-Japanese-Patent No. 2003-122447

  As described above, in the monitor hinge according to the related art, the rotation support portion is provided on both the fixed portion side and the monitor side. In addition, the monitor hinge needs to support the weight of the monitor and to prevent shaking when the user touches the touch panel monitor. For this reason, in the related art, a configuration may be used in which a torsion spring is disposed on the rotation support portion on the fixed portion side and the monitor side to apply an urging force to the monitor. However, in order to apply a sufficient biasing force with the monitor hinge, it is necessary to dispose a torsion spring in both of the rotation support portions, and the structure becomes large, so it is difficult to make the monitor hinge compact. there were.

  The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to provide a monitor hinge that can be made compact while providing a sufficient biasing force to the monitor. It is to be.

  Below, the means for solving the said subject are demonstrated.

  That is, according to the first aspect, the first fixing member fixed to the horizontal surface of the fixing portion, the first rotating shaft fixed to the first fixing member so as not to be relatively rotatable, and the first rotating shaft A second cam fixed to the monitor fixing surface formed on the back side of the display surface of the plate-like monitor, and a second cam fixed parallel to the first rotation axis And a second rotation shaft fixed non-rotatably relative to the second fixed member, a second cam fixed non-rotationally relative to the second rotation shaft, and the first A tubular member is rotatably connected to the first fixed member via a rotating shaft, and is rotatably connected to the second fixed member via the second rotating shaft. A first cam surface is formed on the side of the connecting member and the first cam, and is closely spaced from the first cam. The first slider housed inside the connection member and the second cam surface are formed on the side of the second cam so as to be movable in the direction so as to be movable in the direction approaching and separating from the second cam A second slider housed inside the connecting member, and interposed between the first slider and the second slider, and urging the first slider and the second slider in a direction away from each other The connection member and the monitor such that the rotation direction of the connection member with respect to the horizontal plane and the rotation direction of the monitor fixing surface with respect to the connection member are opposite to each other. The monitor and the fixing portion can be transitionable between a closed state in which the horizontal surface and the monitor fixing surface are parallel to each other and an open state in which the monitor fixing surface is raised with respect to the horizontal surface. The In the monitor hinge, the first cam receives the biasing force from the compression spring via the first slider over the entire area of the pivoting area of the linking member from the horizontal surface, thereby the linking member Assists the pivoting movement away from the horizontal surface, and the second cam moves the second slider at the open side end of the monitor fixing surface in the pivoting area of the monitor fixing surface from the connecting member. By receiving the biasing force from the compression spring, the monitor fixing surface assists in turning away from the connecting member.

  In the second aspect, the difference between the maximum rotation angle of the monitor fixing surface from the connection member and the maximum rotation angle of the connection member from the horizontal surface is set to less than 90 degrees.

  In the third aspect, a plurality of sets of the first slider, the second slider, and the compression spring are disposed side by side in the axial center direction of the first rotation shaft.

  According to the fourth aspect of the present invention, the connecting member is provided with a guide member having a cable insertion hole opened in the axial direction of the connecting member.

  In the fifth aspect of the present invention, a cover that covers the connecting member is disposed on the connecting member, and the cover is brought into contact with the second fixing member to rotate the second fixing member and the connecting member. It regulates the movement.

  The monitor hinge according to the present invention has an effect that it can be made compact while providing a sufficient biasing force to the monitor.

The right view which shows the monitor hinge which concerns on one Embodiment of this invention, a monitor, and a fixing | fixed part. The perspective view which similarly shows a monitor hinge. The top view which similarly shows a monitor hinge. The top view which shows the monitor hinge in the state which removed the cover. The front view which similarly shows a monitor hinge. (A) is a right view which similarly shows a monitor hinge, (b) is the sectional view on the AA line in FIG. The right view which shows the monitor hinge in the 1st rotation state, a monitor, and a fixing | fixed part. The right view which shows the monitor hinge in a 1st rotation state. Sectional drawing which shows the monitor hinge in 1st rotation state. The right view which shows the monitor hinge in the 2nd rotation state, a monitor, and a fixing | fixed part. The right view which shows the monitor hinge in a 2nd rotation state. Sectional drawing which shows the monitor hinge in a 2nd rotation state. The right view which shows the monitor hinge in the 3rd rotation state, a monitor, and a fixing | fixed part. The right view which shows the monitor hinge in a 3rd rotation state. Sectional drawing which shows the monitor hinge in a 3rd rotation state. The perspective view which shows the monitor hinge which concerns on another embodiment of this invention.

  First, the monitor hinge 1 according to the present embodiment will be described using FIGS. 1 to 6. The monitor hinge 1 connects the fixing portion 2 and the touch panel monitor 3. Specifically, as shown in FIG. 1, the horizontal surface 2 a of the fixing portion 2 and the monitor fixing surface 3 b formed on the back side of the display surface 3 a of the monitor 3 are connected. The monitor hinge 1 is in a closed state in which the horizontal surface 2a and the monitor fixing surface 3b are parallel (see FIG. 1) and in an open state in which the monitor fixing surface 3b stands up with respect to the horizontal surface 2a (see FIG. 13). It is possible to transition between. In the present embodiment, illustration and description of various cables connected to the monitor fixing surface 3b are omitted.

  As shown in FIGS. 1 to 6, the monitor hinge 1 includes, as main components, a first fixing member 11 (11R and 11L), a first rotation shaft 12, a first cam 13, and a second fixing member 21. (21R · 21L), the second rotation shaft 22, the second cam 23, the connecting member 31, the first slider 33, the second slider 34, and the compression spring 35 (35a · 35b · 35c) And a cover 41. The following will be described in order.

  The first fixing member 11 is composed of a right side first fixing member 11R and a left side first fixing member 11L, and each is formed by bending a single metal plate into an L shape. The right side first fixing member 11R and the left side first fixing member 11L are each formed with a first fixing surface 11a for supporting the first rotation shaft 12 as described later.

  By fixing the first fixing member 11 to the horizontal surface 2 a of the fixing portion 2, the first fixing surfaces 11 a and 11 a are disposed to be parallel to each other while being orthogonal to the horizontal surface 2 a. A guide groove 11b is opened through the first fixing surface 11a in the first fixing surface 11a.

  The first rotation shaft 12 is fixed to the first fixed member 11 so as not to be rotatable relative to the first fixed member 11. Specifically, the first rotation shaft 12 is bridged between the right first fixing member 11R and the left first fixing member 11L by being inserted into both of the first fixing surfaces 11a and 11a.

  The first cam 13 is fixed to the first rotating shaft 12. Specifically, as shown in FIG. 6B, the first cam 13 is formed with an insertion hole 13a penetrating in the axial direction, and the first rotation shaft 12 is inserted through the insertion hole 13a. One pivot shaft 12 is fixed to the first fixing member 11. Since the insertion hole 13 a and the insertion portion of the first rotation shaft 12 are formed in a non-circular shape, the first cam 13 can not rotate relative to the first rotation shaft 12. Further, similarly, since the first fixed member 11 and the first rotation shaft 12 are also fixed so as not to rotate relative to each other, the first cam 13 is also arranged so as to be rotatable relative to the first fixed member 11 as well. .

  The second fixing member 21 is composed of the right side second fixing member 21R and the left side second fixing member 21L, and each is formed by bending a single metal plate into an L shape. The right side second fixing member 21R and the left side second fixing member 21L are each formed with a second fixing surface 12a for supporting a second rotation shaft 22 as described later.

  By fixing the second fixing member 21 to the monitor fixing surface 3b of the monitor 3, the second fixing surfaces 21a and 21a are disposed to face each other at positions parallel to each other while being orthogonal to the monitor fixing surface 3b. . An abutting portion 21 b is formed at the front end of the second fixed surface 21 a.

  The second rotation shaft 22 is fixed so as not to be relatively rotatable with respect to the second fixed member 21 and parallel to the first rotation shaft 12. Specifically, the second rotation shaft 22 is bridged between the right side second fixing member 21R and the left side second fixing member 21L by being inserted into both of the second fixing surfaces 21a and 21a.

  The second cam 23 is fixed to the second pivot shaft 22. Specifically, as shown in FIG. 6B, the second cam 23 is formed with an insertion hole 23a penetrating in the axial direction, and the second rotation shaft 22 is inserted through the insertion hole 23a. The two rotation shafts 22 are fixed to the second fixing member 21. Since the insertion portion of the insertion hole 23 a and the insertion portion of the second rotation shaft 22 is formed in a non-circular shape, the second cam 23 can not rotate relative to the second rotation shaft 22. Similarly, since the second fixed member 21 and the second rotation shaft 22 are also fixed so as not to be relatively rotatable, the second cam 23 is also arranged so as to be relatively non-rotatable with respect to the second fixed member 21. .

  One end portion of a cylindrical connecting member 31 is rotatably connected to the first fixing member 11 via the first rotating shaft 12. Further, the other end of the connecting member 31 is rotatably connected to the second fixing member 21 via the second rotating shaft 22. Thus, the second fixing member 21 is rotatably connected to the first fixing member 11. That is, the monitor 3 is rotatably connected to the fixed portion 2. As shown in FIGS. 2 to 4, on the rear part of the connecting member 31, engaging projections 36 and 36 are formed so as to protrude outward on the left and right. The engagement protrusion 36 engages with the guide groove 11 b by being inserted into the guide groove 11 b of the first fixed member 11. Thereby, the rotation angle of the connection member 31 with respect to the first fixing member 11 is restricted (see FIGS. 8 and 9). In the present embodiment, as shown in FIG. 2 and FIG. 5, the connecting member 31 is formed in an angular tube shape, but the connecting member 31 may be formed in a cylindrical shape.

  The connecting member 31 is provided with a cover 41 which covers the upper surface and both side surfaces of the connecting member 31. When the second fixing member 21 rotates with respect to the connecting member 31, the contact portion 21b of the second fixing member 21 abuts on the cover 41, so that the rotating angle of the second fixing member 21 with respect to the connecting member 31 It is regulated. (See Figure 14). It is also possible to restrict the rotation angle of the second fixing member 21 with respect to the connecting member 31 by bringing the contact portion 21 b into contact with the connecting member 31.

  The first slider 33 is accommodated on the side of the first fixing member 11 in the inside of the connecting member 31. The first slider 33 is accommodated in the connecting member 31 so as to be movable in the direction approaching and separating from the first cam 13. A first cam surface 33 a is formed on the side of the first cam 13 in the first slider 33.

  The second slider 34 is accommodated on the side of the second fixing member 21 in the inside of the connecting member 31. The second slider 34 is accommodated in the connecting member 31 so as to be movable in a direction toward and away from the second cam 23. A second cam surface 34 a is formed on the side of the second cam 23 in the second slider 34.

  Inside the connecting member 31, a compression spring 35 (specifically, three compression springs 35a, 35b, 35c) is interposed between the first slider 33 and the second slider 34. The biasing force of the compression spring 35 biases the first slider 33 and the second slider 34 away from each other.

  According to the monitor hinge 1 according to the present embodiment, the rotation direction of the connection member 31 with respect to the horizontal surface 2a (counterclockwise in the right side view) and the rotation direction of the monitor fixing surface 3b with respect to the connection member 31 (in the right side view The connecting member 31 and the monitor 3 can be rotated so as to be opposite to the clockwise direction. Thereby, transition can be made between a closed state in which the horizontal surface 2a and the monitor fixing surface 3b are parallel as shown in FIG. 1 and an open state in which the monitor fixing surface 3b stands up with respect to the horizontal surface 2a as shown in FIG. And

  Next, a procedure for causing the monitor hinge 1 to transition from the closed state to the open state will be described with reference to FIGS. 7 to 15. First, the user rotates the connecting member 31 about the first rotation shaft 12 with respect to the first fixed member 11 as shown in FIGS. 7 to 9. Under the present circumstances, the rotation angle of the connection member 31 with respect to the horizontal surface 2a is 1st virtual line S1 (on the horizontal surface 2a, and a straight line orthogonal to the axial center direction of the 1st rotation axis 12 in planar view) shown in each figure. And the second virtual line S2 (straight line in the axial center direction of the connecting member 31). In the present embodiment, as shown in the drawings, the first maximum rotation angle of the connection member 31 with respect to the horizontal surface 2a (the angle when the engagement protrusion 36 abuts one end of the guide groove 11b) α1 is set to about 30 ° Be done.

  In the present embodiment, as shown in FIGS. 6B and 9, the first cam 13 covers the entire area of the pivoting area of the connecting member 31 from the horizontal surface 2a (that is, from the pivoting angle of 0 ° to α1). In the above, the biasing force from the compression spring 35 is received via the first slider 33. More specifically, the first cam 13 is formed such that a portion thereof protrudes radially outward, and the first cam surface 33a of the first slider 33 is spaced apart from the first cam 13 as it goes downward. One slider 33 is formed obliquely to the moving direction. Then, when the connection member 31 rotates, the first slider 33 approaches the first rotation shaft 12 until the rotation angle of the connection member 31 from the horizontal surface 2 a becomes 0 ° to α1. As a result, the first cam 13 assists in the pivoting of the connecting member 31 away from the horizontal surface 2a in the entire pivoting area.

  Next, the user rotates the monitor 3 and the second fixing member 21 about the second rotation shaft 22 with respect to the connecting member 31 as shown in FIGS. 10 to 12. At this time, the rotation angle of the monitor fixing surface 3b with respect to the connecting member 31 is the second virtual line S2 and the third virtual line S3 (on the monitor fixing surface 3b shown in the respective drawings. It is expressed by an angle formed by a straight line orthogonal to the axial center direction of the rotation shaft 22).

  In the present embodiment, as shown in FIGS. 9 and 12, the shapes of the second cam surface 34a of the second cam 23 and the second slider 34 are such that the rotation angle of the monitor fixing surface 3b with respect to the connecting member 31 is from 0 °. The distance between the second slider 34 and the second pivot shaft 22 is formed so as not to change until the angle β1 is reached.

  Furthermore, when the user turns the monitor 3 and the second fixing member 21 as shown in FIGS. 12 and 15, the turning angle of the monitor fixing surface 3b with respect to the connecting member 31 is the second maximum turning angle from the predetermined angle β1. The distance between the second slider 34 and the second rotation shaft 22 is reduced until (the angle when the contact portion 21b contacts the cover 41) β2.

  More specifically, the second cam 23 is formed in an arc shape in which a portion from when the rotation angle of the monitor fixing surface 3b to the connecting member 31 becomes 0 ° to the predetermined angle β1 protrudes outward, and the second slider The second cam surface 34a of 34 is formed obliquely to the moving direction of the second slider 34 so that the upper part moves away from the second cam 23 as it goes upward, and the lower part in the moving direction of the second slider 34 They are formed to be orthogonal to each other. Therefore, the second cam 23 is biased from the compression spring 35 via the second slider 34 at the open end of the monitor fixing surface 3b in the rotation area of the monitor fixing surface 3b from the connecting member 31. Thus, the monitor fixing surface 3 b assists the rotation to separate from the connecting member 31. This supports the weight of the monitor 3 in the open state, and prevents shaking or the like when the user touches the touch panel monitor 3.

  In the present embodiment, the predetermined angle β1 is set to about 90 °, and the second maximum rotation angle β2 is set to about 105 °. That is, in the present embodiment, the monitor fixing surface 3b in the open state stands up by about 75 ° which is the difference between the second maximum rotation angle β2 and the first maximum rotation angle α1 with respect to the horizontal surface 2a. Thus, the difference between the second maximum rotation angle β2 and the first maximum rotation angle α1 is set to less than 90 degrees. That is, in the open state, the monitor 3 is disposed such that the display surface 3a is directed slightly upward to the front.

  In the monitor hinge 1 according to the present embodiment, as described above, the first slider 13, the second slider 34 and the compression spring 35 are accommodated in the connecting member 31, and the first cam 13 disposed on the first pivot shaft 12 and An urging force is applied via the second cam 23 disposed on the second pivot shaft 22. Thereby, since the structure of the rotation support part in the monitor hinge 1 can be simplified, the monitor hinge 1 can be made compact. Further, by adjusting the number of compression springs 35 and the spring strength, the biasing force by the monitor hinge 1 can be easily changed.

  In addition, the second cam 23 assists the rotation in which the monitor fixing surface 3b is separated from the connecting member 31 only at the open end of the monitor fixing surface 3b in the rotation area of the monitor fixing surface 3b from the connecting member 31. To be configured. That is, since the second cam 23 does not assist the rotation of the monitor fixing surface 3b until the rotation angle of the monitor fixing surface 3b with respect to the connecting member 31 becomes the predetermined angle β1, the lift of the monitor 3 in the closed state is prevented. Can.

  Next, a monitor hinge 101 according to another embodiment will be described with reference to FIG. Similar to the monitor hinge 1 shown in FIG. 1, the monitor hinge 101 connects the fixed portion 2 and the touch panel monitor 3.

  As shown in FIG. 16, the monitor hinge 101 includes, as main components, a first fixing member 111 (111R and 111L), a first rotation shaft 112, a first cam 113 and a second fixing member 121 (a second fixing member 121). 121R, 121L), the second rotation shaft 122, the second cams 123, 123, the connecting members 131R, 131L, the first sliders 133R, 133L, the second sliders 134R, 134L, and the compression springs 135a, 135b. And guide members 137R and 137L. The following will be described in order.

  The first fixing member 111 is composed of the right side first fixing member 111R and the left side first fixing member 111L, and each is formed by bending a single metal plate into an L shape. The first fixing member 111 is fixed to the horizontal surface 2 a of the fixing portion 2.

  The first rotating shaft 112 is fixed to the first fixing member 111 so as not to be able to rotate relative to it. Specifically, the first pivot shaft 112 is inserted into the right first fixing member 111R and the left first fixing member 111L, and is bridged between the right first fixing member 111R and the left first fixing member 111L. .

  Two first cams 113 and 113 are fixed to the first pivot shaft 112 so as not to be relatively rotatable. Similarly, since the first fixed member 111 and the first pivot shaft 112 are also fixed so as not to be relatively rotatable, the first cam 113 is also arranged so as to be relatively non-rotatable with respect to the first fixed member 111 .

  The second fixing member 121 is composed of the right side second fixing member 121R and the left side second fixing member 121L, and each is formed by bending a single metal plate into a U shape. The second fixing member 121 is fixed to the monitor fixing surface 3 b of the monitor 3. Cable insertion holes 121b and 121b are opened on the left and right outer sides of the right side second fixing member 121R and the left side second fixing member 121L.

  The second pivot shaft 122 is fixed so as not to be relatively rotatable with respect to the second fixed member 121 so as to be parallel to the first pivot shaft 112. Specifically, the second pivot shaft 122 is inserted into both the right second fixed member 121R and the left second fixed member 121L, thereby providing between the right second fixed member 121R and the left second fixed member 121L. It is bridged.

  The two second cams 123 are fixed to the second pivot shaft 122 so as not to be relatively rotatable. Similarly, since the second fixed member 121 and the second rotation shaft 122 are also fixed so as not to be relatively rotatable, the second cam 123 is also arranged so as to be relatively unrotatable with respect to the second fixed member 121. .

  In the first fixing member 111, one end portions of two cylindrical coupling members 131R and 131L connected so as not to allow relative displacement via the first rotating shaft 112 rotate with respect to the first fixing member 111. It is linked possible. Further, the other end of the connecting members 131R and 131L is rotatably connected to the second fixing member 121 via the second rotating shaft 122. Thereby, the second fixing member 121 is rotatably connected to the first fixing member 111. That is, the monitor 3 is rotatably connected to the fixed portion 2.

  Guide members 137R and 137L in which the cable insertion holes 137a and 137a are opened in the axial center direction of the connection members 131R and 131L are disposed on the left and right outer sides of the connection members 131R and 131L. The cable insertion holes 137a and 137a allow insertion of a cable (not shown) connected to the monitor 3.

  The first sliders 133R and 133L are accommodated on the side of the first fixing member 111 in the inside of the connecting members 131R and 131L. The first sliders 133R and 133L are respectively accommodated in the connecting members 131R and 131L so as to be movable in the direction toward and away from the first cam 113. A first cam surface is formed on the first cam 113 side of the first sliders 133R and 133L.

  The second sliders 134R and 134L are accommodated on the side of the second fixing member 121 in the inside of the connecting members 131R and 131L. The second sliders 134R and 134L are respectively accommodated in the connecting members 131R and 131L so as to be movable toward and away from the second cam 123. A second cam surface is formed on the side of the second cam 123 in the second sliders 134R and 134L.

  Compression springs 135a and 135b are interposed between the first sliders 133R and 133L and the second sliders 134R and 134L inside the coupling members 131R and 131L. The biasing forces of the compression springs 135a and 135b bias the first sliders 133R and 133L and the second sliders 134R and 134L in a direction away from each other.

  According to the monitor hinge 101 according to the present embodiment, the pivoting direction of the connecting members 131R and 131L with respect to the horizontal surface 2a (counterclockwise in a right side view) and the pivoting direction of the monitor fixing surface 3b with respect to the linking members 131R and 131L ( The connecting members 131R and 131L and the monitor 3 can be turned so that the direction opposite to the clockwise direction in the right side view is opposite. Thereby, similarly to the embodiment, transition can be made between a closed state in which the horizontal surface 2a and the monitor fixing surface 3b are parallel and an open state in which the monitor fixing surface 3b stands up with respect to the horizontal surface 2a. The procedure for causing the monitor hinge 101 to transition from the closed state to the open state is the same as that of the above embodiment, and thus the description thereof is omitted.

  In the monitor hinge 101 according to the present embodiment, as described above, the first sliders 133R and 133L, the second sliders 134R and 134L, and the compression springs 135a and 135b move in the axial center direction of the first pivot shaft 112 ) Are arranged side by side. This makes it easy to adjust the biasing force generated by each. Although two sets of the first slider, the second slider, and the compression spring are provided in this embodiment, one or three or more sets may be provided.

  In the monitor hinge 101 according to the present embodiment, the guide members 137R and 137L having the cable insertion holes 137a and 137a opened are disposed on the left and right outer sides of the connection members 131R and 131L. As a result, a cable (not shown) connected to the monitor 3 can be inserted into the cable insertion holes 137a and 137a to facilitate cable management.

Reference Signs List 1 monitor hinge 2 fixing portion 2a horizontal surface 3 monitor 3b monitor fixing surface 11 first fixing member 12 first rotating shaft 13 first cam 21 second fixing member 22 second rotating shaft 23 second cam 31 connecting member 33 first Slider 34 Second slider 35 Compression spring

Claims (5)

A first fixing member fixed to a horizontal surface of the fixing portion;
A first rotation shaft fixed non-rotatably relative to the first fixing member;
A first cam fixed so as not to be relatively rotatable with respect to the first rotation shaft;
A second fixing member fixed to a monitor fixing surface formed on the back side of the display surface of the plate-like monitor;
A second rotation shaft fixed so as not to be relatively rotatable with respect to the second fixing member so as to be parallel to the first rotation shaft;
A second cam fixed so as not to be relatively rotatable with respect to the second pivot shaft;
The first fixing member is rotatably connected to the first fixing member via the first rotating shaft, and is rotatably connected to the second fixing member via the second rotating shaft. A tubular connecting member,
A first cam surface is formed on the side of the first cam, and a first slider is accommodated in the inside of the connection member so as to be movable in a direction approaching and separating from the first cam;
A second slider formed with a second cam surface on the side of the second cam, and housed in the inside of the connecting member so as to be movable in a direction toward and away from the second cam;
And a compression spring interposed between the first slider and the second slider for biasing the first slider and the second slider in a direction away from each other.
By rotating the connecting member and the monitor such that the rotating direction of the connecting member with respect to the horizontal surface and the rotating direction of the monitor fixing surface with respect to the connecting member are opposite to each other, the horizontal surface and the horizontal surface A monitor hinge that connects the monitor and the fixing portion so as to be able to transition between a closed state in which the monitor fixing surface is parallel to an open state in which the monitor fixing surface stands up with respect to the horizontal surface. ,
The first cam receives the biasing force from the compression spring through the first slider over the entire area of the rotation area of the connection member from the horizontal plane, whereby the connection member is separated from the horizontal plane. Support the movement,
The second cam receives an urging force from the compression spring via the second slider at an open end of the monitor fixing surface in a rotation area of the monitor fixing surface from the connection member. A monitor hinge that assists the pivoting of the monitor fixing surface away from the connecting member.   The monitor hinge according to claim 1, wherein a difference between a maximum rotation angle of the monitor fixing surface from the connection member and a maximum rotation angle of the connection member from the horizontal surface is set to less than 90 degrees.   3. The monitor according to claim 1, wherein a plurality of sets of the first slider, the second slider, and the compression spring are arranged side by side in the axial center direction of the first rotation shaft. Hinge.   The monitor hinge according to any one of claims 1 to 3, wherein the connection member is provided with a guide member having a cable insertion hole opened in the axial direction of the connection member. The connecting member is provided with a cover that covers the connecting member,
The monitor hinge according to any one of claims 1 to 4, wherein rotation of the second fixing member and the connecting member is restricted by the cover abutting on the second fixing member.

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