Mount System Utilizing One Motor to Extend/Retract and Tilt a Monitor
A mount system utilizes one motor to extend/retract and tilt a monitor. The mount system may include a second motor to swivel the monitor.
1. Related Applications
This application claims priority to a U.S. Provisional application Ser. No. 61/0152,277, filed Dec. 20, 2007, entitled “Mount System For Adjusting The Viewing Angle Of A Monitor,” which is hereby incorporated by reference.
2. Field of the Invention
This invention is directed to a mount system that is adapted to couple to a back side of a monitor, and adjust the viewing angle of the monitor through one or more motorized actions.
3. Background of the Invention
Flat panel monitors such as computer monitors, LCD, plasma, slim televisions, and the like (collectively referred to as “monitor(s)”) are becoming popular because they can be mounted onto a wall to save floor space and for their aesthetically pleasing appearance. In many applications, a monitor is attached to a wall with a mount bracket between the monitor and the wall. In order to reposition the monitor, an articulating mount is used to attach the monitor to the wall. The articulating mounts that are available today, however, are difficult to use because they have a tendency to move laterally left and right rather than moving straight in and out of the wall as the monitor is pushed and pulled, respectively. In situations where the monitor is recessed into a wall or a cabinet, the lateral movement of the monitor adds to the difficulty of extending and retracting the monitor from its recessed position. Moreover, with manual mounts, in order to reposition the monitor, the viewer needs to walk over to the monitor and physically move the monitor to a new position.
Some mounts incorporate one or more motors to move the mount through motorized action. These motorized mounts incorporate a motor for every degree of movement such as: a first motor for extending and retracting the mount relative to a wall, a second motor for swiveling the mount side to side; and perhaps a third motor for a tilt movement. As such, for three degrees of movement, three motors are used. Every motor, however, adds to the cost of the mount. In addition, adding a motor increases the complexities of controlling the motors. Accordingly, there is a need to adjust the viewing angle of the monitor in a cost effective way and to simplify the control mechanism.
INVENTION SUMMARYThis invention is directed to a mount system adapted to extend and retract a monitor from the wall, and tilt the monitor with one motor. The mount system may also include a second motor to swivel the monitor. The mount system may have a scissor type actuator that extends and retracts the monitor in a substantially perpendicular manner.
Other systems, methods, features, and advantages of the invention will be, or will become, apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this description, be within the scope of the invention, and be protected by the following claims.
The invention can be better understood with reference to the following drawings and description. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. Moreover, in the figures, like referenced numerals designate corresponding parts throughout the different views.
The mount system 100 includes a second actuator system 130 having a housing 131 and a monitor mounting bracket 133. The monitor mounting bracket 133 may have two cross-pipes 180 and 182 adapted to couple to the rear side of a monitor. The housing 131 may have a motor 135 mechanically coupled to a gear 132 to rotate the gear 132. The housing 131 may include a shaft 137 with a first end 134 and a second end 136. The second end 136 may be adapted to couple to a sleeve 138 adapted to rotate about the longitudinal axis of the shaft 134. The sleeve 138 may be adapted to pivotably couple to the distal end 116 of the second link 108 to pivot about a third pivot axis 140. The sleeve 138 may be coupled to the second end 136 of the shaft 134 such that as the second end 136 moves along the longitudinal axis of the shaft 134, the third pivot axis 140 moves along Y-axis as well, which may be substantially parallel with the longitudinal axis of the shaft 134.
The shaft 134 may have gear teeth 142 along the longitudinal axis of the shaft 134 on one side. The gear 132 may be adapted to engage with the teeth 142 of the shaft 134 such that as the motor 135 rotates the gear 132, the shaft 134 may move along its longitudinal axis, thereby moving the distal end 116 along the Y-axis which is substantially parallel with the longitudinal axis of the shaft 134 while pivoting about the third pivot axis 140.
A moving block 144 may be coupled to the shaft 134 so that the moving block 144 moves along the longitudinal axis of the shaft 134 as well. In this example, the moving block 144 may be coupled to the side of the shaft 134. The moving block 144 may have one or more rollers 146 adapted to roll along a base plate 148 of the housing 131. The housing 131 may have side walls 150 adapted to pivotably engage with the side walls 152 of the monitor mounting bracket 133 so that the monitor mounting bracket 133 may pivot about a sixth pivot axis 154, which is located between the base 156 of the monitor mounting bracket 133 and the approximate location 158 of the center of gravity of a monitor. One of the side walls 150 or 152 may have a curvature opening 160 defined by a radius of curvature “R” with its focal point at the sixth pivot axis 154. Having the monitor mounting bracket 133 pivot about the sixth pivot axis 154, which is closer to the center of gravity 158, minimizes the torque needed from the motor to tilt the monitor. Note that it is within the scope of this invention to utilize a pivot axis within the two side walls 150 and 152 to pivot the monitor mounting bracket 133 relative to the housing 131.
The monitor mounting bracket may have a wheel 146 adapted to engage with the moving block 144 to pivot the monitor mounting bracket 133 about the sixth pivot axis 154. The moving block 144 may have a first surface 164 that may be sloped relative to the XY plane. The moving block 144 may also include a second surface 165 that is substantially parallel with the XY plane or the base 148. The moving block 144 may be positioned relative to the wheel 162 so that the first surface 164 of the moving block 144 engages with the wheel 162 at a predetermined distance from the fully extended position of the monitor mounting bracket 133. As such, as the first actuator 104 retracts the monitor from the extended position, the monitor mounting bracket 133 begins to tilt the monitor to the upright position as the base 148 of the housing 131 reaches a first predetermined position A and fully tilts the monitor to the upright position as the base 148 reaches a second predetermined position B, which is before the first actuator 104 is at a fully retracted position. In other words, the wheel 162 engages the first surface 164 of the moving block 144 as the base 148 moves between the predetermined positions A and B so that the monitor mounting bracket 133 tilts the monitor up and down relative to the base 148; and the wheel engages the second surface 165 of the moving block 144 between the predetermined position B and the fully retracted position. The length of the second surface 165 may be sufficiently long along the Y-axis to support the wheel 162 as the base 148 moves from the predetermined position B to the fully retracted position. This minimizes the torque required by the motor 135 because there may be an inrush of current necessary to extend the monitor from the fully retracted position and an inrush of current may be necessary to retract the monitor from the fully extended position. As such, by tilting the monitor between the predetermined locations A and B, less current or torque may be required for the motor 135 to extend or retract, and at the same time tilt the monitor.
The second actuator system 130 may include a second motor mechanism 166 having a second motor 168 adapted to rotate a second shaft 170 about its longitudinal axis. The distal end 172 of the second shaft 170 may be coupled to a bracket 174 adapted to pivotably couple to the distal end 112 of the first link 106 about a fourth pivot axis 176. The second motor mechanism 166 may be coupled to the base 148 of the housing 131 so that the longitudinal axis of the second shaft 170 may aligned with the longitudinal axis of the first shaft 134. As the second motor 168 rotates the second motor mechanism 166 about the longitudinal axis of the second shaft 170, the second actuator system 130 may rotate about the longitudinal axis of the second shaft 170 to rotate the monitor as well.
The first and second links 106 and 108 may be pivotably coupled together about a fifth pivot axis 178, which may be a midpoint between the pivot axes 122 and 176, and midpoint between the pivot axes 126 and 140. As illustrated in
Claims
1. A method of adjusting a viewing angle of a monitor, the method comprising:
- extending a monitor mounting bracket from a retracted position to an extended position and tilting the monitor mounting bracket from a retracted position to a tilted position using a first motor; and
- retracting the monitor mounting bracket from the extended position to a retracted position and tilting the monitor mounting bracket from the tilted position to a retracted position using the first motor.
2. The method according to claim 1, including:
- swiveling the monitor mounting bracket using a second motor.
3. The method according to claim 1, including:
- waiting a predetermined time to tilt the monitor mounting bracket from the retracted position to tilted position as the first motor extends the monitor mounting bracket from the retracted position to the extended position using the first motor.
4. The method according to claim 1, including:
- waiting a predetermined time to tilt the monitor mounting bracket from the tilted position to the retracted position as the first motor retracts the monitor mounting bracket from the extended position to the retracted position using the first motor.
Type: Application
Filed: Dec 15, 2008
Publication Date: Jun 25, 2009
Inventor: Sung I. Oh (West Covina, CA)
Application Number: 12/334,580
International Classification: A47B 96/06 (20060101);