JPH0463077A - Turning device for television receiver - Google Patents

Abstract

PURPOSE:To easily perform the connecting work by turning an image receiver in a range free from geomagnetism by the signal of a remote control signal transmitter and manually turning it beyond this range and turning the rear face of the receiver to the front. CONSTITUTION:Normally, an omission part 7a of a stationary rib 7 is placed on a stopper 17 in a cabinet 2 of a receiver 1. In this state, a driving device 4 is driven and operated by the remote control signal transmitted to turn the receiver 1 in a prescribed turning range. At the time of connection work on the rear face of the receiver 1, a lever 23 is manually turned in the direction of an arrow A. Then, the stopper 17 has a pair of detaining projections 17a placed in the radial direction. The stationary rib 7 is put between the pair of detaining projections 17a, and the stopper 17 is kept in this control release state. Thus, the cabinet 2 is so turned that its rear face is placed in the front, and external lead line connection and connection change of the receiver 1 are performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotating device for a television receiver that allows a cabinet to be rotated remotely and manually.

[Conventional technology]

An example of a remote rotation device for a television receiver (hereinafter referred to as "receiver") is disclosed in Japanese Utility Model Application Publication No. 5'7-178765. This conventional example is provided with a pair of stoppers for the fixing part rcl, so that the top plate part on which the image receiver is mounted is limited to a predetermined rotation range.

Another example of a conventional remote rotation device for a television receiver is disclosed in Japanese Utility Model Publication No. 36-29052. This other example is not provided with a stopper. In this way, if a stopper is not provided and the receiver is rotated over a large range, the antenna wire or power cord connected to the receiver may be pulled or broken, or the image may be damaged. Since color unevenness may occur, it is practically necessary to provide a stopper.

In the former example of the conventional rotating device, the rotating means for the receiver includes a fixed part in which a drive unit consisting of an electric motor and a speed reducer is placed, and a cabinet for the receiver is mounted on top of the fixed part, which is supported on the fixed part. It consists of a rotating top plate.

When a signal is issued from the remote control signal transmitter, the receiver receives the signal and operates the drive section, which rotates the top plate and rotates the receiver. A limit switch is provided on the top plate, and when the top plate is rotated by a predetermined angle, the limit switch stops driving the drive unit.

Furthermore, even if the receiver is rotated by hand, the restraining ribs on the top plate act as a stopper, mechanically preventing rotation beyond a predetermined angle.

[Problem to be solved by the invention]

With the conventional image receiver rotation device as described above, when the image receiver is rotated 90 degrees sideways from its frontal position, the image receiver is easily affected by the earth's magnetic field, so the image is created by irradiating the cathode ray tube. The electron beam is bent by the earth's magnetic field and misses its target, causing problems such as color unevenness. Therefore, there was a problem in that it could only be rotated within a range that was not affected by the earth's magnetic field.

Generally, the antenna terminal board and video input/output terminals are installed on the rear of the television receiver.When connecting lead wires for antennas, video equipment, etc., or changing connections, you need to go around to the rear of the television receiver to make connections. There was a problem in that connection changes had to be made.

This invention was developed to solve these problems, and the receiver is rotated within the range where it is not affected by the earth's magnetic field using *V of the remote control signal transmitter, and further rotation is prohibited. The object of the present invention is to provide a rotating device for a receiver that can be manually operated, the rear surface of the receiver facing forward, and connection work that can be easily performed.

[Means to solve the problem]

A rotating device for a picture receiver according to the present invention includes a rotary support plate rotatably mounted on an annular groove on a support base, a cabinet of the picture receiver entirely rotatably mounted on the rotary support plate, and a bottom plate of the cabinet mounted on the rotary support plate. A stopper means is provided between the lower surface and the upper surface of the support base to allow free rotation within a predetermined rotation range, and to stop when the predetermined rotation range is exceeded, and the drive device is operated by a remote control signal transmitter. This allows the receiver to rotate within a predetermined rotation range. Furthermore, in order to allow the receiver to rotate outside the predetermined rotation range, a manual release means is provided, which releases the lock and allows the receiver to be rotated 180 degrees by hand. is.

Further, if necessary, a power limit switch is provided to turn off the power to the receiver when the receiver exceeds a predetermined rotation range, and to turn on the receiver when the receiver returns to the predetermined rotation range.

[Effect]

In this invention, the drive device is operated by a remote control signal transmitter to rotate the image receiver within a predetermined rotation range. The image receiver is regulated by stopper means so that it cannot rotate outside a predetermined rotation range. To rotate the receiver out of the predetermined rotation range, operate the restriction release means and actuate the stopper means to release the lock. After this, turn the receiver by hand and rotate the rear of the receiver forward. p by side
1 Connection work can be done easily.

Furthermore, if a power limit switch is provided that turns off the power to the receiver when the receiver exceeds a predetermined rotation range, the image will be automatically erased due to the influence of the earth's magnetic field that causes color unevenness. When the receiver returns to a predetermined rotation range, the power limit switch turns on the receiver, automatically eliminating the influence of the earth's magnetic field and producing images without color unevenness. In general, a television receiver operates a degaussing circuit when the power is turned off to eliminate the adverse effects of attendance.

〔Example〕

FIGS. 1 and 2 are an exploded perspective view and a cross-sectional view of a portion of a rotating device of an image receiver in an assembled state according to an embodiment of the present invention. In the figure, Yu is an image receiver, and an image receiver (not shown) is housed in a rotary cabinet 1. Reference numeral 4 denotes a drive device consisting of an electric motor and a gear reduction gear, and the lower part of the output gear 6 projects downward. This drive device 4 is mounted on the bottom plate part s with a mounting screw 6, and the lower part of the output gear 6 protrudes from the lower surface of the bottom plate part 3.
A stopping rib formed on the lower surface and consisting of an annular protrusion is cut out within a predetermined negative range, forming a cutout part a. Reference numeral 8 indicates a single-double annular projection formed on the bottom surface of the bottom plate 3, and 9 indicates three mounting seats provided at the center of rotation on the bottom surface of the bottom plate 3. Installed as shown. U2 is a protruding cylindrical part o13 is a floor or TV stand (not shown)
A support stand placed on the upper surface rcri annular holder 4,
A contact wall 15 for power supply is formed. Contact wall 15
is provided with a retreating wall portion 15a that is partially retreated in the radial direction. A guide hole part 6 is provided in the center of the support base 13, and the bottom plate part 3 is rotatably fitted in the guide cylindrical part 1g. 1F is a stopper which is rotatably attached to the support base 13, and has a center opening on the upper surface, a pair of locking protrusions lea on both sides in the radial direction, and a stopper gear 18 formed at the lower part. Locking protrusion 17 of stopper l frame r11 pair
When a is rotated to a position in the circumferential direction with respect to the restraining rib, it faces the cutout portion 7 and the end face of the restraining rib and restricts the rotation within the predetermined rotation range of the cabinet 2t. 1 pair O for stopper 17
When the locking protrusion l'ya is rotated to the radial position, the restraining rib 7 can be freely inserted into the space between the two locking protrusions 17a, and the cabinet 20 rotation restriction is lifted. is a nine-swivel support plate that is fitted into the annular receiving groove 14 so as to be rotatable by hand, and has support recesses 20 at multiple locations in the circumferential direction.
A peg is provided to rotatably support a pair of rollers 21. 22ji is a large-diameter bevel gear formed on the inner diameter side upper part of the rotation support plate, and is fully meshed with the output gear 5 consisting of a small bevel gear.

The cabinet 2 is mounted on each roller 21 of this rotary support plate 20 with an annular projection 8, and the output gear 6 of the drive device 4
With the rotation of the cabinet 2, the bevel gear 22 is used as a support body.
is rotated.

Next, in FIGS. 2 and 3, 23 is a lever supported by a support bin 13a fC provided on the support base 13, a knob 23m is provided on the outer periphery, and a lever gear part 24 is provided below.
is formed. 25ij is a hook body supported movably in the longitudinal direction on the support stand unit 3, and a hook 25a at one end engages with the stopper gear 18, and a hook 25b at the other end engages with the V/<- gear 24. 26 moves lever 23 to Jl! ! The return spring returns the rotation to the position shown in FIG. 3, and the knob 23a is on the opposite side. In this state, the stopper gear 18 is rotated through the rack body 25, and as shown in FIG. @JI
The cabinet 2 is restricted within a predetermined rotational range by locking the pouf that prevents Fl from moving.

When the lever 23 is turned in the direction A using the knob 23a, the stopper 17 is rotated via the hook body 25 and the stopper gear 18, and the pair of locking protrusions 1a are moved to the radial position, as shown in Figure 4. become. In this way, both locking protrusions 17. In between, the restraint rib can be moved in and out, the cabinet 2 can be rotated by hand, and the restriction can be kept released. From this state, if you turn cabinet 2 by hand to the original side,
When the cut-out portion 7a of the restraining rib reaches the stopper 17 position, the pair of locking protrusions 17a of the stopper 1'Flj come off from the restraining rib and become rotatable. Therefore, the return spring 26
As a result, the lever 23 is rotated back in the β direction, and as shown in FIG. The rotation is restricted to a predetermined range. The lever 23 and the hook body 25 constitute means for releasing the restriction by the stopper 1f.

In Figures 1 and 5, 3or! A power limit switch is attached to the lower surface of the bottom plate part 3 with the mounting screw 31, and the range facing the retreating wall part 1551K of the abutment wall unit 5 of the support base 13 (equal to the predetermined rotation range of the cabinet 20)
In this case, the contact 30a is released and the power is turned on. When the cabinet 2 is rotated beyond a predetermined rotation range, the contact 30a contacts the contact wall 15 to close the contact and turn off the power. As shown in FIG. 3, in the cabinet 2, the cutout part FA of the restraining rib is located at the stopper 17, and the stopper 1 has a locking protrusion 17a located in the circumferential direction. In this state, the remote control signal transmitter operates the drive straight pipe number to move the image receiver 1 within a predetermined rotation range (within the range in which the end of the stopper rib is locked with the locking protrusion a of the stopper 17). Can rotate.

In order to rotate the receiver 1 by a large amount for connection work on the rear side, do the following: 0 Manually move the lever 23 in the upward direction
5iil), the stopper 17 moves to the position where the pair of locking protrusions 17a are in the radial position, as shown in FIG.
In this state, when the cabinet Bt is rotated by hand, the stopper ribs enter the pair of locking protrusions a, and the stopper 1
This deregulation letter 11vc will be maintained. At the same time, the power limit switch 30 comes into contact with the abutment wall 14, and the receiver 1
Turn off the power to erase images caused by color shifts caused by the earth's magnetic field, eliminating discomfort. The cabinet 8 is rotated to a position where the rear face is forward (for example, 180°), and the external lead wires of the image receiver 1 are connected or connections are changed.

When the work is completed, the cabinet 2 is turned back to its original position by hand. Due to this rotation, the stopper rib is removed from between the pair of locking protrusions 17a of the stopper, and the return spring 26 causes the stopper l'7ij: and the pair of locking protrusions 1f& to rotate in the circumferential direction. In this state, the image receiver 1 can be rotated within a predetermined rotation range by remote control.At the same time, the power limit switch 30 returns to the power-on operation and the image receiver 1 is energized. When the L1 receiver l exceeds a predetermined rotation range, the power to the receiver l is automatically turned off by the power limit switch 30, but the power limit switch is omitted and a manual switch is used to demagnetize in case of uneven color etc. By providing a switch, it is possible to rotate the receiver by 180 degrees from 11 degrees when the power is on.However, in this case, manual switch operation is required. According to the above, a rotary support plate is rotatably mounted on an annular groove on a support base, a cabinet of an RC receiver is rotatably mounted on the rotary support plate, and the lower surface of the bottom plate of the cabinet and the upper surface of the support base are The receiver is rotated by a drive device attached to the cabinet and operated by a remote control signal transmitter. The receiver can be rotated within a predetermined rotation range on the dynamic support plate, and the restricted state can be released using a manual release means, so that the receiver can be rotated 180 degrees by hand. Connection work can be done with the rear side facing forward.In addition, a power limit switch is installed between the bottom plate of the cabinet and the top of the support base, and if the image receiver turns nine times beyond the specified rotation range, the image will be received. By turning off the machine's electric rIK and turning it on when it returns to the specified rotation range, it automatically erases the image due to uneven coloring caused by the earth's magnetic field.
When it returns to the predetermined rotation range, an image is automatically inserted.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a rotating device for a television receiver according to an embodiment of the present invention, FIG. 2 is a partial longitudinal cross-sectional view of the device shown in FIG. FIG. 4 is a plan view of the stopper means in a restricted state showing the stopper means and restriction release means shown in FIG. 3; FIG. O which is a plan view showing the relationship between the support stand and the abutment wall for turning on and off the power 1... Television receiver 611% 2-... Cabinet 3... Bottom plate portion 4... Drive device; 5... Output gear, 7... Stopping rib, F a... Missing part, 13...
・Support stand, 14... Annular receiving groove, 15... Abutment wall,
15a... Retreating wall, near... Stotsu/(, l'Fm
... Locking protrusion, 1B..., X) Flange gear, 20...
・Rotating support plate, 21...Rolling element (roller), 22...
Bevel gear, 23... Lever 24... Lever gear,
25... Rack body, 25a, 25b... Hook portion, 30... Power supply switch. Note that the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) A television receiver having a cabinet, a stop rib provided in an annular shape on the bottom surface of the bottom plate of the cabinet, a predetermined area removed in the circumferential direction to form a cutout, and an annular receiving groove formed on the top surface. A support stand, which is rotatably mounted on the annular receiving groove of the support stand, and on which the cabinet is rotatably mounted via a plurality of rolling elements, which is attached to the bottom plate, and receives a remote control signal. A drive device that is driven and operated by a signal from a transmitter and rotates the cabinet relative to the rotation support plate; the drive device is attached to the support base, is normally located in the cutout part of the stopper rib, and rotates the cabinet in a predetermined manner; a stopper means for restricting the rotation within a range; the stopper means is attached to the support base, the restriction of the stopper means is manually released, the cabinet is rotated by hand, and the stopper rib passes through the stopper means to maintain the unlocked state; A restriction release means is provided to enable rotation of the receiver with the back side facing the front side, and when the receiver is manually turned back from the state with the back side facing the front side, the restraining rib comes off from the stopper means. A rotation device for a television receiver in which a cabinet is returned to a regulated state within a predetermined rotation range. (2) When the receiver is interposed between the cabinet and the support stand and is in a position within a predetermined rotation range with the front surface facing forward, the power to the receiver is turned on and the receiver is rotated beyond the predetermined rotation range. 2. The apparatus for rotating a television receiver according to claim 1, further comprising a power limit switch which turns off the power to the television receiver when the television receiver is moved.