JP6037309B2 - Monitor left / right tilt mechanism - Google Patents

Description

  The present invention relates to a monitor left-right tilt mechanism for tilting a monitor such as a car navigation apparatus in the left-right direction.

  In the in-dash type car navigation apparatus, the monitor and the apparatus main body are integrally configured, the apparatus main body is housed in the vehicle instrument panel, and the monitor is provided on the front surface of the apparatus main body and exposed from the vehicle instrument panel. As described above, in a device in which the apparatus main body and the monitor are integrally configured and the apparatus main body is fixed, a monitor left / right tilt mechanism that tilts the monitor in the left / right direction with respect to the apparatus main body is known.

  FIG. 6 is a schematic diagram showing a conventional monitor left-right tilt mechanism. In this conventional monitor left / right tilt mechanism 101, a shaft holding member 120 protruding forward is provided at the center position in the width direction (left / right direction) of the holding member 130 fixed to the front surface of the apparatus main body, and at the tip of the shaft holding member 120, A vertical rotation shaft 121 that pivotally supports a central position in the width direction (left-right direction) of the monitor 10 is provided, and the monitor 110 is rotated around the rotation shaft 121, whereby the monitor 110 is tilted left and right. Is realized.

  By using such a monitor left / right tilt mechanism 101, the monitor 110 can be disposed integrally with the apparatus main body, and the tilt in the left / right direction can be adjusted. For example, in an in-dash type car navigation device, the monitor 101 attached to the center of the vehicle instrument panel can be tilted toward the driver.

  In addition, there exist the following prior art documents as a prior art relevant to this invention.

JP 2000-122563 A

  As shown in FIG. 6, in the conventional monitor left / right tilt mechanism 101, the pivot shaft 121 is located at the center in the left / right direction of the monitor 110. It was necessary to secure a large space. Further, when the pivot shaft 121 is provided close to either the left or right as in the monitor left / right tilt mechanism 102 shown in FIG. 7, it is not necessary to secure a large space on the back surface of the monitor 110. You can only tilt the monitor to one side. Furthermore, if the monitor 110 is rotatably supported by one rotation shaft 121 as shown in FIGS. 6 and 7, the monitor 110 becomes unstable.

  In the monitor swing mechanism of Patent Document 1, a fixed plate fixed to the chassis main body and formed with guide grooves in the front-rear direction at the left and right positions of the upper flange portion and the lower flange portion, and the left and right positions of the upper surface and the lower surface Further, there are provided a monitor provided with guide pins that are fitted in the guide grooves of the fixed plate and guided in the front-rear direction, and a slide plate that is supported by the fixed plate so as to be slidable in the left-right direction. The slide guide plate's upper and lower flanges extend in the left / right direction and the monitor's guide pins are inserted, and cam grooves are formed with the inside offset forward and the outside offset backward. In the neutral state where the monitor faces the front, the monitor guide pin is located at the entrance portion of the cam groove facing outward.

  With this configuration, when the sliding plate is slid to one side, the guide pin on the other side is locked so that the rear outward facing portion of the cam groove of the sliding plate is fitted and cannot move forward, and at the same time, The guide pin is pushed at the front inward facing portion of the cam groove on one side of the sliding plate and moves forward, so that one side of the monitor swings forward using the other side guide pin as a pivot point become.

  Therefore, the monitor swings in the left-right direction with the guide pin on either one of the left and right sides as a rotation fulcrum. Therefore, the monitor has the above-described conventional method in which the rotation fulcrum is set at the center in the width direction of the monitor. In comparison, since both sides of the monitor do not move greatly in the front-rear direction at the same time, the occupied space in the front-rear direction of the swing drive mechanism of the monitor is reduced, and the thickness can be reduced.

  However, the swing mechanism of the monitor of Patent Document 1 requires a sliding plate, and its configuration is complicated.

  The present invention has been made in view of the above problems, and it is not necessary to secure a large space on the back of the monitor, and the monitor left and right can be tilted in either direction with a simple structure. An object is to provide a tilt mechanism.

  The monitor left / right tilt mechanism of the present invention is provided with a monitor, a fixed length portion provided behind the monitor and rotatably attached to the monitor at a rotation support point, and an expansion / contraction that expands and contracts with respect to the fixed length portion. A pair of left and right extendable arms composed of a portion, a rear guide means for guiding the movement of a rear slide point, which is a point on the extendable part, in the left-right direction, formed forward of the rear guide means, A front guide means having a left and right guide portion for guiding a front slide point, which is a point on the fixed length portion and a point behind the rotation support point, in the left and right direction, and the pair of telescopic arms And a holding member for holding the monitor via the telescopic arm. The guide member includes a front-rear direction guiding unit for guiding at least one of the rotation support points in the front-rear direction.

  With this configuration, when the rear slide point of at least one of the telescopic arms is moved outward in the left-right direction along the rear guide means, the left-right movement of the rotation support point is restricted by the front-rear direction guide means. As the front slide point of the telescopic arm moves to the outside in the left-right direction, the telescopic arm rises while contracting, thereby pushing the telescopic arm side of the monitor forward. Similarly, when the rear slide point of the opposite telescopic arm is moved to the outside in the left-right direction along the rear guide means, the telescopic arm rises while contracting. Pushed forward. Therefore, according to the above configuration, the monitor can be tilted in either the left or right direction, and the sinking of the monitor to the back side due to the left / right tilt is reduced. It is no longer necessary to secure a large space on the back side of the. In addition, since the back and forth movement of the rotation support point is restricted by the front and rear direction guide means during tilting, the shift of the monitor position in the left and right direction can be reduced.

  The monitor left / right tilt mechanism may further include a link connecting the rear slide point of each of the pair of telescopic arms, and the front guide means further includes a link of the monitor than the left / right guide portion. A diagonally forward guide portion that is formed from the center in the left-right direction and guides the front slide point to the front of the monitor as it goes to the center in the left-right direction of the monitor may be included.

  With this configuration, the monitor can be tilted left and right simply by moving the link left and right. Further, since the front guide means has the oblique front guide part, even when the telescopic arm on the opposite side to the rising side is pulled by the link and falls down, sinking of the rotation support point of the falling link is reduced.

  In the above-described monitor left-right tilt mechanism, the oblique front guide portion may have an arc shape centered on the rotation support point and having a radius from the rotation support point to the front slide point, The front-rear direction guiding means may have an arc shape centered on the rotation support point on the side opposite to the side on which it is provided and having a radius as a distance between the left and right rotation support points. .

  With this configuration, the position of the rotation support point is fixed when the front slide point is guided by the oblique front guide portion in each telescopic arm. At this time, the monitor rotates about this rotation support point, and this rotation center does not fall to the back side. Also, the horizontal displacement of the monitor position can be almost eliminated.

  In the monitor left-right tilt mechanism, the fixed length portion may be rotatably attached to an end portion in the left-right direction of the monitor.

  With this configuration, the monitor rotates around the left end and the right end as the center of rotation when tilting left and right, so that the monitor does not sink.

  The monitor left / right tilt mechanism according to the present invention guides the movement of the monitor, a pair of left and right extendable arms provided behind the monitor and rotatably attached to the monitor at a rotation support point. A guide member, and a holding member that holds the monitor via the telescopic arm. The guide unit contracts the telescopic arm when the rear end of the telescopic arm is moved outward in the left-right direction. The movement of the telescopic arm is guided so as to push forward the pivot support point of the telescopic arm while standing up.

  Even with this configuration, when the rear end of either the left or right telescopic arm moves outward in the left-right direction, the pivot support point of the telescopic arm is pushed forward, so the monitor can be tilted in either the left or right direction. In addition, since the sinking of the monitor to the back side due to the left / right tilt is reduced, it is not necessary to secure a large space on the back side of the monitor for the left / right tilt of the monitor. In addition, since the back and forth movement of the rotation support point is restricted by the front and rear direction guide means during tilting, the shift of the monitor position in the left and right direction can be reduced.

  According to the present invention, the left and right tilt of the monitor can be realized with a simple configuration, and the monitor does not sink to the back side during the left and right tilt, so it is necessary to secure a space for the left and right tilt on the back side of the monitor. Nor.

The schematic diagram which shows the structure of the monitor left-right tilt mechanism (left small tilt) in embodiment of this invention. The perspective view of the AV navigation apparatus in the embodiment of the present invention The schematic diagram which shows the structure of the monitor left-right tilt mechanism (front direction) in embodiment of this invention The schematic diagram which shows the structure of the monitor left-right tilt mechanism (large left tilt) in embodiment of this invention. Schematic diagram showing the configuration of the monitor left-right tilt mechanism (large right tilt) in the embodiment of the present invention. Schematic diagram showing a conventional monitor left-right tilt mechanism Schematic diagram showing a conventional monitor left-right tilt mechanism

  Hereinafter, a monitor left / right tilt mechanism according to an embodiment of the present invention will be described with reference to the drawings. The embodiment described below shows an example when the present invention is implemented, and the present invention is not limited to the specific configuration described below. In carrying out the present invention, a specific configuration according to the embodiment may be adopted as appropriate. In the following embodiment, an example will be described in which the monitor left / right tilt mechanism is applied to an AV navigation apparatus mounted on a vehicle. The AV navigation device is a device having a car navigation function and an AV (Audio Visual) function.

  FIG. 2 is a perspective view of the AV navigation apparatus. The AV navigation device 100 includes a device main body 101 and a monitor 1 provided on the front side of the device main body 101. The AV navigation apparatus 100 is attached to the vehicle such that the apparatus main body 101 is embedded in the vehicle instrument panel and the monitor 1 is exposed from the surface of the vehicle instrument panel.

  A disc media insertion portion 105 is provided on the front surface of the apparatus main body 101, that is, behind the monitor 1, and the disc media can be inserted from the insertion portion 105. In the AV navigation apparatus 100, the screen faces upward from an upright posture along the front surface of the apparatus main body 101 in order to enable insertion of a disc medium into the insertion unit 105 and removal of the medium from the insertion unit 105. The disk media insertion portion 105 provided on the front surface of the apparatus main body 101 is exposed by tilting in the direction.

  A movable arm 106 that extends from the apparatus main body 101 and is drawn into the apparatus main body 101 is provided from the left and right below the front surface of the apparatus main body 101. The movable arm 106 is driven in the front-rear direction by a motor and a drive mechanism provided inside the apparatus main body 101. The tip of the movable arm 106 pivotally supports the lower part of the side surface of the monitor unit 107 in a rotatable manner.

  The monitor unit 107 includes a monitor 1 and a holding member 3 that holds the monitor 1. The monitor unit 107 will be described in detail later as a monitor left / right tilt mechanism.

  An escutcheon 102 on a frame is attached to the front surface of the apparatus main body 110. The escutcheon 102 is provided with a side wall 103 that is parallel to the side surface of the upright monitor unit 107 and is located outside the side surface of the upright monitor unit 107. The upright monitor unit 107 fits inside the side wall 103. A movable groove 104 extending in the vertical direction is formed on the inner surface of the side wall 103 (the surface facing the side surface of the monitor unit 107). A pin (not shown) protruding in the lateral direction is provided on the upper part of the side surface of the holding member 3. The pin is fitted in the movable groove 104 and can slide in the movable groove 104.

  In such a configuration, when the movable arm 106 is extended forward, the lower portion of the monitor unit 107 is extended forward, and the pin that protrudes outward from the upper portion of the side surface of the holding member 3 and is fitted in the movable groove 104. However, as shown in FIG. 2, the monitor unit 107 tilts so that the screen faces upward as it slides downward in the movable groove 104. From this state, when the movable arm 106 is driven in the direction in which the movable arm 106 is pulled into the apparatus main body 101 (rearward), the lower part of the monitor unit 107 is pulled back toward the front surface of the apparatus main body 101 and the upper part of the side part of the holding member 3 is The pin slides upward in the movable groove 104, and the monitor unit 107 assumes an upright posture along the front surface of the apparatus main body 101.

  As shown in FIG. 2, when the monitor unit 107 tilts, the upper part of the front surface of the apparatus main body 101 is exposed. A media insertion portion 105 is provided in the exposed portion of the front surface. Therefore, the user can insert and remove media from the insertion unit 105 by tilting the monitor unit 107 as shown in FIG.

  1 and 3 to 5 are schematic views showing the configuration of the monitor left-right tilt mechanism according to the embodiment of the present invention. In the description of FIGS. 1 and 3 to 5, the words “left”, “right”, “front”, and “rear” refer to a direction perpendicular to the paper surface in the vertical direction according to the example of FIG. 3. The front surface of the monitor 1 is referred to as the front surface, and the rear side of the monitor 1 is referred to as the back surface.

  FIG. 3 shows a state where the monitor is not tilted in either the left or right direction (front posture). The monitor left and right tilt mechanism 10 includes a monitor 1, a pair of left and right extendable arms 2L and 2R, a holding member 3 for holding the monitor 1 via the extendable arms 2L and 2R, and the rear ends of the extendable arms 2L and 2R. And a link 4 to be connected. In FIG. 3, the position (reference position) of the back surface of the monitor 1 when the monitor 1 is in the front posture is indicated by a one-dot chain line, and this reference position is also indicated in FIGS. Yes.

  The holding member 3 is located on the back side of the monitor 1, and the holding member 3 is fixed to an apparatus main body (not shown) located further rearward. That is, the monitor 1 is held by the holding member 3 provided on the front surface of the apparatus main body. The apparatus body is embedded and fixed inside the instrument panel INP, and the monitor 1 is exposed from the instrument panel INP. The positional relationship between the surface of the instrument panel INP and the front surface of the monitor 1 may be such that the front surface of the monitor 1 slightly protrudes from the surface of the instrument panel INP as shown in FIG. The front surface may be slightly lower than the surface of the instrument panel INP.

  The extendable arms 2L and 2R are composed of fixed length portions 21L and 21R and extendable portions 22L and 22R, respectively. The fixed length portions 21L and 21R have guide means for guiding the sliding operation of the extendable portions, and the extendable portions 22L and 22R are guided and moved by the guide means, so that the fixed length portions 21L and 21R extend and contract with respect to the fixed length portions 21L and 21R. To do. Specifically, the fixed length portions 21L and 21R have a cylindrical shape extending linearly covering the stretchable portions 22L and 22R, and the stretchable portions 22L and 22R slide along the extending direction in the cylindrical shape. By doing so, it is accommodated in the fixed length portions 21L and 21R and expands or contracts, or is extended from the fixed length portions 21L and 21R.

  The front ends of the fixed length portions 21L and 21R are rotatably connected to the back surface of the monitor 1 near the left and right ends of the back surface of the monitor 1. The monitor 1 and the fixed length portions 21L and 21R rotate with respect to each other with the connection points serving as rotation support points 211L and 211R. The telescopic portions 22L and 22R are provided on the rear end side of the fixed length portions 21L and 21R.

  The holding member 3 is formed with rear rails 31L and 31R on the left and right sides. The left rear rail 31L extends in the left-right direction from the left side of the holding member 3 to the center in the left-right direction, and the right rear rail 31R is left-right from the right side of the holding member 3 to the center in the left-right direction. Extending in the direction.

  Front rails 32L and 32R are formed in front of the rear rails 31L and 31R of the holding member 3, respectively. The front rails 32L and 32R include left and right guide portions 321L and 321R extending in the left and right direction from the outer side in the left and right direction of the holding member 3 to the center in the left and right direction, and further, inner ends 323L and 323L of the left and right guide portions 321L and 321R, It has diagonally forward guide portions 322L and 322R formed continuously from the center in the left-right direction from 323R.

  The oblique front guide portions 322L and 322R have a shape that rises forward as it goes to the center in the left-right direction. Specifically, the oblique front guide portions 322L and 322R are centered on the rotation support points 211L and 211R when the monitor 1 is in the front posture facing the front as shown in FIG. It has the circular arc shape which makes the radius the distance from the inner end of the left and right guide portions 321L and 321R.

  Rear slide points 221L and 221R which are the rear ends of the telescopic portions 22L and 22R of the telescopic arms 2L and 2R are engaged with the rear rails 31L and 31R so as to be movable along the rear rails 31L and 31R. Yes. Specifically, the rear rails 31L and 31R are grooves, and the rear slide points 221L and 221R are pins fitted in the grooves.

  Further, front slide points 212L and 212R which are rear ends of the fixed length portions 21L and 21R of the telescopic arms 2L and 2R are engaged with the front rails 32L and 32R so as to be movable along the front rails 32L and 32R. Yes. Specifically, the front rails 32L and 32R are grooves, and the front slide points 212L and 212R are pins fitted in the grooves.

  With the above configuration, the rotation support point 211L, the front slide point 212L, and the rear slide point 221L are always positioned on a straight line, and the rotation support point 211R, the front slide point 212R, and the rear slide point 221R. Are always on a straight line.

  The link 4 connects the rear slide points 221L and 221R that are the rear ends of the telescopic arms 2L and 2R. The link 4 and the rear slide points 221L and 221R are connected so as to be rotatable. The link 4 is driven in the left-right direction by a drive mechanism (not shown) according to a user instruction or a result of predetermined information processing.

  The distance between the rear slide point 221L and the rear slide point 221R is fixed by the link 4. Specifically, the link 4 is located at the center in the left-right direction in the front posture, and the distance between the rear slide point 221L and the rear slide point 221R is set to the front slide point 212L of both the telescopic arms 2L and 2R. 212R are simultaneously fixed to the distances located at the inner ends 323L and 323R of the left and right guide portions 321L and 321R. That is, when the monitor 1 is facing the front as shown in FIG. 3, the front slide points 212L and 212R are both positioned at the inner ends 323L and 323R of the left and right guide portions 321L and 321R.

  The holding member 3 further includes a front-rear rail 33 that guides a rotation support point 211R, which is the front end of the fixed length portion 21R of the right telescopic arm 2R, in the front-rear direction. The rotation support point 211R is a point at which movement in the left-right direction is restricted by the front-rear direction rail 33, and is a left-right movement restriction point.

  In the present embodiment, the front-rear rail 33 is a groove, and the rotation support point 211R as a left-right movement restriction point is a pin fitted in the groove. The front-rear rail 33 is centered on the rotation support point 211L of the left telescopic arm 2L on the opposite side when the monitor 1 is in the front posture, and is between the rotation support point 211L and the rotation support point 211R. It has an arc shape whose radius is the distance.

  The operation of the monitor left / right tilt mechanism 10 configured as described above will be described with reference to FIGS. In the monitor left / right tilt mechanism 10 configured as described above, the left / right tilt operation of the monitor 1 is performed by moving the link 4 in the left / right direction.

  FIG. 1 shows a state in which the link 4 slides slightly to the right from the center position, so that the monitor 1 is tilted slightly to the left. The right rear slide point 221R moves to the right, whereby the telescopic arm 2R contracts, and the right front slide point 212R moves the left and right guide portions 321R of the front rail 32R to the right. At this time, the rotation support point 211R, which is a left-right movement restriction point, moves forward along the front-rear rail 33, so that left-right movement is restricted, whereby the telescopic arm 2R rises and the right side of the monitor 1 moves forward. Extruded.

  On the other hand, when the link 4 slides to the right from the center position, the left rear slide point 221L moves to the right, thereby extending the telescopic arm 2L, and the left front slide point 212L is the oblique forward guide portion of the front rail 32L. Move forward along 322L. As a result, the telescopic arm 2L is tilted so as to fall down.

  As described above, the oblique front guide portion 322L is formed in an arc shape centered on the rotation support point 211L in the front posture and having the radius of the fixed length portion 21L, and the front-rear rail 33 In addition, since it is formed in an arc shape centering on the rotation support point 211L in the front posture and having a radius between the rotation support point 211L and the rotation support point 211R, the front slide point 212L on the left side is formed. The front slide point 212L on the left side moves forward along the oblique front guide part 322L of the front rail 32L, and the rotation support point 211R on the right side moves forward along the front-rear rail 33 while stopping at that position. To do.

  That is, when the link 4 is moved to the right from the center position in the left-right direction, the monitor 1 rotates to tilt leftward with the rotation support point 211L in the front posture as the rotation center. Therefore, even when tilting leftward, the left rotation support point 211L does not sink backward. Further, since the position of the rotation support point 211L is fixed when the monitor 1 tilts to the left, the monitor 1 does not move left and right.

  FIG. 4 is a diagram showing a state where the link 4 is further moved to the right from the state of FIG. 1, and shows a state where the monitor 1 is tilted to the left in the maximum direction. When the link 4 moves further to the right from the state of FIG. 1, the right rear slide point 221R moves further to the right, and the right front slide point 212R moves the right and left guide portions 321 of the front rail 32R to the right. As a result, the telescopic arm 2R rises while further contracting.

  As a result, the pivot support point 211R moves further forward along the front-rear rail 33, and the right side of the monitor 1 is pushed further forward. As shown in FIG. 4, when the right rear slide point 221R comes to just below the right rotation support point 211R, the right telescopic arm 2R rises so as to be parallel to the front-rear direction, and the right side of the monitor 1 is at the maximum. It is pushed forward as much as possible.

  On the other hand, the rear slide point 221L on the left side further moves to the right side, whereby the telescopic arm 2L further expands, and thereby the telescopic arm 2L further falls. The left front slide point 212L still remains stopped at that position, and the left front slide point 212L moves further forward along the oblique forward guide portion 322L of the front rail 32L.

  As is clear from FIG. 4, due to the leftward tilt, the portion outside the left rotation support point 211 </ b> L on the monitor 1 is sunk slightly to the back side. However, since this sinking is due to the rotation of the monitor 1 with the left rotation support point 211L as the rotation center, the rotation support points 211L and 211R are positioned sufficiently close to the left and right ends of the monitor 1. By designing, such sinking can be made extremely small, and by providing the rotation support points 211L and 211R on the left and right ends of the monitor 1, sinking can be completely eliminated.

  FIG. 5 is a diagram illustrating a state in which the link 4 has moved to the left from the center position in the left-right direction. In the monitor left / right tilt mechanism 10, the rails of the pair of extendable arms 2L and 2R and the holding member 3 are configured symmetrically, so that when the link 4 moves to the left, the link 4 described above is moved to the right. The left side of the monitor 1 is pushed forward, and the monitor 1 tilts to the right.

  The front-rear rail 33 is provided only on the right side and not on the left side. However, when the link 4 moves to the left side and the left telescopic arm 2L rises, it serves as a left-right movement restriction point. Since the right and left movement of the right rotation support point 211R is restricted, the left and right movement of the monitor 1 is restricted, and the monitor 1 rotates about the position of the right rotation support point 211R in the front posture.

  As described above, in the monitor left / right tilt mechanism 10 according to the embodiment, the front ends of the telescopic arms 2L and 2R are rotatably attached to the left and right sides of the monitor 1 as the rotation support points 211L and 211R, respectively. The holding member 3 includes various rails that guide the movement of the extendable arms 2L and 2R, and holds the monitor 1 via the extendable arms 2L and 2R. The link 4 is rotatably connected to the rear ends of the telescopic arms 2L and 2R. When the link 4 is moved to the left due to the configuration of the various rails of the holding member 3, the left telescopic arm 2L contracts and pushes the left rotation support point 211L of the monitor 1 to the front, while the right telescopic arm 2R The position of the rotation support point 211R is fixed, whereby the monitor 1 rotates about the right rotation support point 211R as a fulcrum and tilts to the right. Conversely, when the link 4 is moved to the right, the right telescopic arm 2R contracts and pushes the right rotation support point 211R of the monitor 1 to the front, and the position of the rotation support point 211L of the left telescopic arm 2L. Accordingly, the monitor 1 rotates about the left rotation support point 211L as a fulcrum and tilts to the left.

  Therefore, according to the monitor left / right tilt mechanism 10 of the embodiment, the monitor 1 can be tilted in either the left or right direction, and the sinking of the monitor 1 to the back side is reduced. Therefore, it is not necessary to secure a large space on the back side of the monitor 1. Further, the left-right movement of the left-right movement restriction point of the telescopic arm 2R is restricted by the front-rear direction rail 33 during tilting, and thereby the left-right movement of the monitor 1 is restricted. Move can be reduced.

  In particular, in the above embodiment, the rotation support point 211R is the left-right movement restriction point, and the left and right oblique front guide portions 322L and 322R are centered on the positions of the rotation support points 211L and 211R in the front posture. The front-rear rail 33 has a circular arc shape having a radius from the dynamic support points 211L and 211R to the front slide points 212L and 212R. Since it has an arc shape centering on the position in the posture and having a radius between the left and right rotation support points 211L and 211R, the front slide points 212L and 212R are inclined in the telescopic arms 2L and 2R. When guided by the front guide portions 322L and 322R, the positions of the rotation support points 211L and 211R are fixed. At this time, the monitor 1 rotates around the rotation support points 211L and 211R, the rotation center does not fall to the back side, and the rotation support points 211L and 211R do not shift in the left-right direction.

  In the above-described embodiment, the oblique front guide portions 322L and 322R are formed in an arc shape centering on the rotation support points 211L and 211R in the front posture, but the oblique front guide portions 322L and 322R are left and right guides. As long as the shape rises forward from the inner ends 323L, 323R of the portions 321L, 321R toward the center in the left-right direction, it does not necessarily have an arc shape centering on the rotation support points 211L, 211R in the front posture. .

  When the rising of the oblique front guide portions 322L and 322R is more gradual than the above-described rising of the arc shape, when the link 4 moves in the left-right direction, the side on which the link 4 moves (the side on which the telescopic arm rises) However, as the left and right guide portions 321L and 321R are closer to the above-mentioned arc shape, the sinking is reduced. Therefore, it is most desirable to make the oblique front guide portions 322L and 322R into an arc shape centering on the rotation support points 211L and 211R in the front posture as in the above embodiment. In comparison, it is possible to suppress the subsidence to a small extent even when the rising is slightly gentle. Further, the oblique front guide portions 322L and 322R may have a shape other than the arc shape, such as a linear shape.

  In the above-described embodiment, the front slide points 212L and 212R are positioned at the inner ends 323L and 323R of the left and right guide portions 321L and 321R, which are the starting points of the oblique forward guide portions 322L and 322R, respectively, in the front posture. However, the starting point of the oblique forward guide portions 322L and 322R may be closer to the inner side or closer to the outer side.

  When the starting point of the oblique forward guide portions 322L and 322R is inward, the monitor 1 sinks due to the left and right tilt of the monitor 1, but the sinking is caused by the oblique forward guide portions 322L and 322R. The smaller the deviation of the starting base point from the above-described embodiment, the smaller it can be suppressed.

  Further, when the starting point of the oblique forward guide portions 322L and 322R is on the outside, the monitor 1 is in the front posture with respect to the movement of the link 4 within a predetermined range when the link 4 is near the center. Thus, the above-described effect of reducing the sinking of the monitor 1 and reducing the movement of the monitor 1 in the left-right direction accompanying the left-right tilt can be obtained in the same manner.

  Further, in the above-described embodiment, the left and right rear slide points 221L and 221R are connected to the link 4 and moved along the rear rails 31L and 31R with the same movement direction and movement amount. Without the link 4, the left rear slide point 221L and the right rear slide point 221R are driven independently, and the oblique front guide portions 322L and 322R are not formed on the front rails 32L and 32R. It's okay. In this case, the front rails 32L and 32R include only the left and right guide portions 321L and 321R shown in FIG. 2, and are formed so as to be dead ends at their inner ends 323L and 323R.

  In the front posture, the front slide points 212L and 212R are configured to be positioned at the inner ends 323L and 323R of the front rails 32L and 32R, as in the example of FIG. When the monitor 1 is tilted leftward, only the right rear slide point 221R is slid rightward while the left rear slide point 221L is stopped. As a result, the right telescopic arm 2R rises while the telescopic portion 22R of the right telescopic arm 2R contracts, thereby pushing the right side of the monitor 1 forward and tilting the monitor 1 leftward.

  Even when the monitor 1 is returned to the front posture from the tilted position to the left, the position of the left rear slide point 221L is fixed and the right rear slide point until the front slide point 212R reaches the inner end 323R. 221R is moved leftward. Thereafter, if the monitor 1 is to be tilted to the right, the position of the right rear slide point 221R is fixed at the inner end 323R, and the left rear slide point 221L is driven leftward. The left side of the monitor 1 is pushed forward by the same operation as described above. Thus, even if the link 4 is not provided, it is possible to perform a tilt operation that suppresses the sinking of the monitor 1 and suppresses the horizontal displacement of the monitor 1.

  In the above embodiment, the front-rear rail 33 is provided on the right side. However, it may be provided on the left side, and may be provided on both the left and right sides. Further, the front-rear direction rail 33 may be a linear shape instead of an arc shape. In the above embodiment, the telescopic arms 2L and 2R and the various rails of the holding member are configured to be bilaterally symmetric. Good.

  In the above embodiment, the holding member 3 is provided with various rails (grooves) as means for guiding the movement of each point of the extendable arms 2L, 2R. As a means for guiding the movement, any means for restricting the movement of each point of the telescopic arms 2L and 2R to a predetermined line may be employed.

  In the above embodiment, the front ends of the fixed length portions 21L and 21R of the telescopic arms 2L and 2R are rotatably connected to the monitor 1 as the rotation support points 211L and 211R, and the rear ends are the front slide points 212L and 212R. The front rail 32L is slid and the rear ends of the telescopic portions 22L and 22R are configured to slide the rear slide points 221L and 221R on the rear rails 31L and 31R. The positions of the points 211L and 211R, the front slide points 212L and 212R, and the rear slide points 221L and 221R are not limited to these.

  That is, the front ends of the fixed length portions 21L and 21R may be in front of the rotation support points 211L and 211R, and the rear ends of the fixed length portions 21L and 21R are in the rear of the rotation support points 212L and 212R. Alternatively, the rear ends of the extended portions 22L and 22R may be located behind the rear slide points 221L and 221R.

  In the above-described embodiment, the example in which the monitor left / right tilt mechanism 10 is applied to the AV navigation apparatus 101 in which the holding member 3 and the monitor 1 held thereon are tilted in the vertical direction has been described. The AV navigation apparatus 101 to which is applied may not have a mechanism for tilting in the vertical direction. Furthermore, the monitor left / right tilt mechanism 10 can be applied to an arbitrary apparatus in which the monitor and the apparatus main body are integrally configured and the apparatus main body is fixed, in addition to the AV navigation apparatus.

  The present invention can realize a left / right tilt of the monitor with a single configuration and does not need to secure a space for the left / right tilt on the back side of the monitor because the monitor does not sink to the back side during the left / right tilt. It is useful as a monitor left / right tilt mechanism for tilting the monitor in the left / right direction.

10 monitor left and right tilt mechanism 1 monitor 2L, 2R telescopic arm 21L, 21R fixed length portion 211L, 211R rotation support point 212L, 212R front slide point 22L, 22R telescopic portion 221L, 221R rear slide point 3 holding member 31L, 31R rear Side rail 32L, 32R Front rail 321L, 321R Left and right guide part 322L, 322R Diagonal forward guide part 323L, 323R Inner end 33 Front-rear direction rail 4 Link 100 AV navigation device 101 Device body 102 Escution 103 Side wall 104 Movable groove 105 Insertion part 106 Movable Arm 107 Monitor unit

Claims (5)

A monitor,
A pair of left and right extendable arms, each of which is provided behind the monitor and is attached to the monitor so as to be rotatable at a rotation support point; and a pair of left and right extendable arms extending and contracting with respect to the fixed length part;
A rear guide means for guiding the movement of the rear slide point, which is a point on the stretchable part, in the left-right direction, formed forward of the rear guide means, and a point on the fixed length part, Front guide means having a left and right guide portion for guiding the front slide point, which is a point behind the rotation support point, in the left-right direction, and at least one rotation support point of the pair of telescopic arms A holding member for holding the monitor via the telescopic arm, including a front-rear direction guiding means for guiding in the direction;
A monitor left-right tilt mechanism characterized by comprising: And a link connecting the rear slide points of each of the pair of telescopic arms,
The front guide means further includes a slant that is formed closer to the center of the monitor in the left-right direction than the left-right guide portion and guides the front slide point forward of the monitor as it goes to the center in the left-right direction of the monitor. The monitor left-right tilt mechanism according to claim 1, further comprising a front guide portion. The oblique front guide portion has an arc shape centered on the rotation support point and having a radius from the rotation support point to the front slide point,
The front-rear direction guiding means has an arc shape centered on the rotation support point on the side opposite to the side on which the guide means is provided and having a radius between the left and right rotation support points. The monitor left-right tilt mechanism according to claim 2.   The monitor left / right tilt mechanism according to claim 1, wherein the fixed length portion is rotatably attached to an end portion of the monitor in a left-right direction. A monitor,
A pair of left and right telescopic arms provided behind the monitor and rotatably attached to the monitor at a pivot support point;
A holding member for guiding the movement of the telescopic arm, and holding the monitor via the telescopic arm;
With
When the rear end of the telescopic arm is moved outward in the left-right direction, the guide means expands and contracts so as to push the pivot support point of the telescopic arm forward while causing the telescopic arm to contract while standing up. A monitor left-right tilt mechanism characterized by guiding the movement of the arm.

Images