JPH01305783A - Miniature television tuner - Google Patents

Abstract

PURPOSE:To obtain a miniature TV tuner by forming a recessed groove for storing a rod antenna on the side surface of a case, and arranging a part of a switch operating part in the recessed groove. CONSTITUTION:The recessed groove 30 is formed lengthily between the top and the bottom ends of the central part of the left side surface (contrary side to power switch) of the case 25, and its cross-section is made circular-arc-shaped. The base part 32 of the rod antenna 31 is extended horizontally at a top end part in the case 25, and in addition, is supported so as to be rotatable freely around an axis and further, slidable slightly right and left, and the left end 32a of it is projected in the top end part of the groove 30. The base end of the base stage 33a of the telescopic part 33 of the antenna 31 is supported freely rotatably by the left end 32a of the base part. At non-use time, the antenna is stored in the base stage 33a, and is rotated, and is put along the recessed groove 30 of the case. At this time, only a part 34b of the knob 34 of a scan switch is exposed to en external part. An enter button is hidden by the antenna 31. Through this constitution, even when a hand touches the side surface of the case in order to use the antenna, the hand does not touch the switch operating part, and no malfunction is caused.

Description

DETAILED DESCRIPTION OF THE INVENTION The compact television tuner of the present invention will be explained according to the following items.

A. Industrial field of application B1 Overview of the invention C1 Prior art [Fig. 10 B0 Problem to be solved by the invention [Fig. 10] E0 Means for solving the problem F. Examples [Figs. Figure 9 a, Overview [Figures 1 to 5, Figure 9] b, Video display block [Figures 1 to 5, Figure 7, Figure 9] C6 Video and/or audio output block [ Figures 1 to 3
Figures, Figures 5, 7, and 9] d. Power supply block [Figures 1 to 5, Figure 9] e. Modification of power supply block [Figure 6] e-1. AC adapter [Figure 6] e-2. Rechargeable power supply block [Figure 6] e-3. Charging the rechargeable power supply block [Fig. 6] f, Usage example [Figs. 3 to 5, Figs. 8 and 9 f-1, Use as a television receiver [Fig. 3, Fig. [Fig. 5, Fig. 8, Fig. 9] f-2, Use as a monitor device [Fig. 4] Effects of the G5 invention (A. Field of industrial application) The present invention relates to a novel small-sized television tuner. Specifically, regarding a small TV tuner equipped with a telescoping rod antenna, the concave groove that houses the rod antenna is used as a placement part for the operation part of some switches, thereby making effective use of space. The aim is to provide a compact TV tuner that can be

(B. Summary of the Invention) In the small TV tuner of the present invention, some of the switch operation parts are located in the groove in which the rod antenna is placed when stored. It can be used as an arrangement section for the operation section, thereby increasing space utilization efficiency and making it possible to downsize.

(C, Prior Art) [Figure 10 A co-television receiver is provided with an antenna,
In particular, small-sized antennas are provided with telescopic rod antennas that can be made smaller when stored.

FIG. 10 shows m pieces a of television receivers each equipped with a telescoping rod antenna.

Reference numeral b denotes a case, and a part of a tuner (not shown), a power supply unit, etc. are housed in the case b, and a video display unit C faces the outside from the front of the case b.

d is a telescopic rod antenna, and the base end of the base f of the telescopic part e is rotatably connected to the distal end of the base g whose distal end protrudes from the upper end of one side of the case b. There is.

Therefore, when using the television receiver a, as shown by the two-dot chain line, the telescopic portion e of the rod antenna d is
When the television receiver a is not used, the extendable part e is retracted, that is, each stage other than the base f is housed within the base f. Then, the base f is placed along the side of the case b.

(D. Problem to be Solved by the Invention) [Figure 10] However, in the above-mentioned conventional television receiver a, the side surface of the case b where the rod antenna d is provided becomes a dead space. There is a problem with this.

That is, if the switch operation parts i, i, ... are provided near the folded rod antenna d on the side, when trying to rotate the rod antenna d when using it, , the operation section 111 of the switch,
I'm used to touching things with my hands and making erroneous operations.

For this reason, conventionally, the switch operation section is not provided on the side where the rod antenna d is folded, but is instead placed on the other side of the case b. . For this reason, as the number of switches increases, more side surfaces are required to place the operating parts, and since the side surface along which the rod antenna is placed cannot be used, the other side surfaces must be made larger. This was a constraint on miniaturization.

(E. Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the small TV tuner of the present invention has a concave groove formed on the - side of the case along which the rod antenna is placed when stored. The operation parts of some of the switches are arranged in the groove.

Therefore, in the small TV tuner of the present invention, even if the user goes to the side of the case along which the rod antenna is placed in order to put the rod antenna into use, the operating part of the switch is located in the recessed groove. There is almost no risk that the hand will touch the operation part of the switch and perform an erroneous operation. and,
By placing the switch operation part on the side that the rod antenna runs along when it is stored, one more side of the case is required to place the switch operation part, increasing the efficiency of space use. Contributes to the miniaturization of small TV tuners.

Furthermore, the addition of one side surface on which the switch operation section is arranged increases the number of variations in the arrangement of the switch operation section, making it possible to realize an arrangement of the switch operation section that is easy to use.

(F. Embodiment) [Figs. 1 to 9] Details of the small-sized television tuner of the present invention will be described below according to the illustrated embodiment 1. The illustrated embodiment shows an example in which the present invention is applied to a television monitor device in which a video display block, a video and/or audio output block, and a power supply block can be freely coupled to and separated from each other.

(A, View 8I) [Figures 1 to 5, Factor 9] The small television tuner 1 is composed of a video display block 2, a video and/or audio output block 3, and a power supply block 4.

For example, the video and/or audio output block 3 is coupled to the back of the video display block 2, and the video and/or audio output block 3 is further connected to the back of the video display block 2.
Alternatively, if a power supply block 4 is connected to the back of the audio output block 3 (see Figures 3, 5, and 9), it can be used as a television receiver. If blocks 4 are combined (see FIG. 4), it can be used as a monitor device for video cameras, VTRs, laser discs, etc.

The present invention is applied to the video and/or audio output block 3. The details of each block will be explained below.

(b, Video display block) [Figures 1 to 5, 7, and 6] 5 is the case of the video display block 2, which has a box-like shape with a slightly horizontally elongated rectangular shape from the front and an opening at the rear. A large window 6 is formed in the front, and the main window 6 is covered with a transparent plate 7.

Reference numeral 8 denotes a liquid crystal display plate disposed within the case 5 so as to cover the window 6, and a backlight 9 is disposed on the back side of the liquid crystal display plate 8. Incidentally, a drive circuit for the liquid crystal display panel 8 and the backlight 9, other circuits, switch means, etc. are arranged inside the case 5, and the details thereof will be described later.

10 and 11 are adjustment dials provided on the top surface of the case 5, 10 is for adjusting the brightness of the image, and 11 is for adjusting the volume.

12. 13 is a jack provided at the lower part of the right side of the case 5 (facing the front. In the following, when referring to the left and right directions, it is shown facing the front), and 12 is the A/V I
N is for video/audio signal input, and 13 is for earphones.

14 and 15 are adjustment dials provided on the left side of the case 5, 14 is for adjusting the contrast of the video display, and 15 is for adjusting the color tone of the video display.

Reference numeral 16 denotes a back cover attached to the case 5 so as to cover the back thereof.

17 is a connector section provided on the upper right side of the back M16, in which a plurality of connector bins 18, 18, . . . are arranged.

19.19 and 20.20 are connecting portions formed on the back M16. The connecting portions 19.19 are formed at the upper end of the back cover 16 and are spaced apart from each other in the left and right direction, and the connecting portions 20.20 are formed at the upper end of the back cover 16.
They are formed spaced apart in the left and right direction at the lower end of the. The spacing between the lower connecting portions 20.20 is larger than the spacing between the upper connecting portions 19.19, so that when connecting another block to the video display block 2, there is no possibility of incorrect orientation. It is made sure that there is no such thing.

Each connecting part 19.19.20.20 has a recess 21.21,
... and the eaves piece 22.22 that covers the upper part of the opening of the recess 21.21, ... and the slit 23 formed on one side of the eave piece 22.22, .... It consists of 23,...

Reference numeral 24 denotes a lock hole formed at a lower position along the right side edge of the back i16, and the right side edge is formed in a crank shape.
a is formed. A portion 24b of the right side edge of the lock hole 24 below the lock edge 24a is formed into a rearward slope.

(c, video and/or audio output block) [Figures 1 to 3, 5, 7, and 9] In this embodiment, the video and/or audio output block 3 is It is formed as a TV tuner block.

Reference numeral 25 denotes a case of the television tuner block 3, which has a box-like shape with a slightly horizontally elongated rectangular shape and an opening at the front, and the front opening is covered by a front lid 26.

27a and 27b are channel switch buttons provided on the top surface of the case 25; 27a is for channel up;
27b is for channel down.

Reference numeral 28 denotes a channel call switch button formed adjacent to the channel switch buttons 27a and 27b, and a mode is set in which the channel number being received is displayed on the screen of the liquid crystal display board 8 each time this switch button 28 is pressed. It is possible to switch between display mode and non-display mode.

Reference numeral 29 denotes a power switch button provided on the right side of the case 25, which is configured as a slide switch button, and is positioned at the top for "power on" and at the bottom for "power off". .

30 is a groove formed so as to extend from the upper end to the lower end in the center of the left side surface of the case 25 in the front-rear direction;
It has an arc-shaped cross section.

31 is a rod antenna, whose base 32 is connected to the case 2.
It extends horizontally at the upper end of the inside of the case 25 and is supported so as to be rotatable around the axis and also to be able to slide slightly in the left and right directions, and its left end 32a fits into the recess on the left side of the case 25. It projects into the upper end of the groove 30. The base end of the base 33a of the extendable part 33 of the rod antenna 31 is rotatably supported by the left end 32a of the base 32.

When the rod antenna 31 is used,
Slide the base 32 to the left to increase the amount of protrusion from the left side of the case 25, extend each stage of the telescopic section 33 to each other, rotate the telescopic section 33 appropriately with respect to the base 32, and
By appropriately rotating the base portion 32 with respect to the case 25, the angle of the extendable portion 33 that provides the best reception condition is selected and used. When not in use, the base 32 is slid to the right to reduce the amount of protrusion from the case 25, and the telescopic portion 33 is retracted.
When each stage other than the base 33a of No. 3 is housed in the base 33a, the base 33a is rotated relative to the base 32 and placed along the groove 30 of the case 25. Approximately half of the diameter is accommodated in the groove 30, and the amount of protrusion from the side surface of the case 25 is reduced.

Reference numeral 34 denotes a scan switch knob provided on the left side surface of the case 25, and is configured to be slidable in the vertical direction. The scan knob 34 has a portion 34a located within the groove 30 and a portion 34b located in contact with the edge of the groove 30.
are integrally formed, and the portion 34a is curved to match the curved surface of the groove 30. When the rod antenna 31 is positioned along the groove 30, only the portion 34b is exposed to the outside, and therefore, in this state, the scan knob 34 is slid by pressing this portion 34b. Note that when this scan knob 34 is located on the lower side, the channel switch buttons 27a and 27b are
All channels can be called up by operating the channel switch button 27a, and when the scan knob 34 is located at the upper side, only the pre-stored channels can be called up using the channel switch button 27a.
It is called by the operation of 27b.

35 is an enter button, which is arranged in the groove 30;
When the rod antenna 31 is positioned along the groove 30, it is hidden from the outside.

Note that when the enter button 35 is pressed, the channel currently being received is stored in the memory.

It should be noted that the storage in this memory should be such that channels numbered 5 to 20 can be stored.

36 is a clear button, which is arranged in the groove 30, and when the rod antenna 31 is positioned along the groove 30, this button is also hidden from the outside. Note that when this clear button 36 is pressed, the contents of the channel information stored in the memory are erased.

Note that the portion 34a of the knob 34 and the button 35.
36 is a concave groove so that when the rod antenna 31 is located in the concave groove 30, it is not pressed by the rod antenna 31 or becomes a hindrance to aligning the rod antenna 31 in the concave groove 30. each located within a shallow recess formed within 30.

37 is a connector section provided on the upper right side of the front lid 26, and a large number of contacts 38, 38, . . . are formed thereon.

39.39 and 40.40 are engagement protrusions protruding from the front M26, the engagement protrusions 39 and 39 are formed at the upper end of the front lid 26 to be spaced apart in the left-right direction, and the engagement protrusions 40 and 40 are formed at the lower end of the front M26 so as to be spaced apart in the left-right direction.

The distance between the upper engaging protrusions 39 and 39 is the same as that between the upper connecting parts 19 and 1 formed on the video display block 2.
9, and the lower engaging protrusion 4
The spacing between 0 and 40 is the same as the spacing between the lower connecting portions 20 and 20 formed on the video display block 2. And each engagement protrusion 39.39.40.
Reference numeral 40 denotes protrusions 41.41, ψ, which protrude forward from the front lid 26 and extend in the left-right direction.
・An engaging piece 42.42 protruding upward from the front end of the
. . . and mooring strips 43.43, . . . which connect the negative side edges of the engaging pieces 42, 42, .

Reference numeral 44 denotes a recessed portion that opens at a position slightly lower than the center in the vertical direction of the front surface of the case 25 along the right edge.

Reference numeral 45 denotes a lock piece, whose rear end is connected to the case 25, and whose front end 45a has bending elasticity so that it can move in the left-right direction.

The front end 45a of this lock piece 45 is connected to the recess 4.
4, and is located at the right end of the recess 44 while no pressing force is applied to it. The front end surface 45b of the front end portion 45a is sloped toward the right.

Reference numeral 46 denotes a pressed portion that protrudes rightward from approximately the center position in the front-rear direction of the lock piece 45, and its right end portion 46a extends rightward from a hole 47 formed in the right side wall of the case 25. It is prominent. When the right end 46a of the pressed part 46 is pressed, the lock piece 45 is moved to its front end 45a.
The right end portion 4 of the pressed portion 46 is bent to the left.
When the pressing force on the lock piece 6a is removed, the elasticity of the lock piece 45 causes the front end 45a to return to a position near the right end of the recess 44.

Connecting portions 19, 19, 20, 20 and lock holes 24 similar to those formed on the rear surface of the video display block 2 are formed on the rear surface of the television tuner block 3.

Although the video and/or audio output block 3 has been described here as a TV tuner block equipped with a tuner for normal Japanese TV broadcasting, the video and/or audio output block 3 is not limited to this type of block. A tuner for Japanese audio multiplex television broadcasting, a tuner for American television broadcasting, a tuner for American audio multiplex television broadcasting, a television broadcast tuner that also has a radio tuner. There are various types of devices available, such as those equipped with a CATV compatible tuner, and those equipped with a CATV compatible tuner.
A desired one can be purchased and used in combination with the video display block 2, power supply block 4, etc.

48 is a connector section provided on the upper right side of the rear surface of the case 25, and includes a plurality of connector pins 49, 49, . . .

Note that 25a is an antenna jack provided at the lower right side of the case 25 for connecting an external antenna.

(d, Power supply block) [Figures 1 to 5, Figure 9] Reference numeral 50 is the case of the power supply block 4, which has a slightly horizontally elongated rectangular front shape and a flat box-like shape with an opening at the front. The front i51 is attached to the front opening. A large rectangular hole 52 is formed in the front cover 51, and a battery storage recess 53 faces forward through the chain hole 52. In this battery storage recess 53, four single-dose dry batteries 54, 54, . . . are housed.

Reference numeral 55 denotes a connector section provided on the upper right side of the front i51, and a large number of contacts 56, 56, . . . are formed therein.

Reference numeral 57 denotes a power input jack formed at the lower end of the right side of the case 50, and is used by connecting the connection plug 59 of the AC adapter 58 when used in a place where an AC power source is available, for example. .

60 is a shallow recess formed on the back surface of the case 50;
The upper end reaches approximately the center in the vertical direction, and the lower end has an opening 61 at the lower end of the case 50. Engagement grooves 62 and 62 are formed on both left and right side surfaces of the recess 60.

In addition, the front M51 has the TV tuner block 3.
Engagement protrusion 39.39.4 similar to that provided on the front surface of
0.40 and a lock piece 45 are formed.

(e. Modified example of power supply block) [Fig. 6] In addition to the dry battery type described above, the power supply block 4 may be an AC adapter type, a rechargeable type, or the like.

(e-1, AC adapter) [Fig. 6] 4A is an AC adapter type power supply block, and the AC-DC converter and
Necessary circuits such as a C-DC converter are provided.

64 is a power supply cord, and a plug 65 for connecting to an AC power outlet is connected to the tip.

66 is a connector section provided on the upper right side of the front surface of the case 63, and a plurality of contacts 67.6, . . . are provided thereon.

68 is a pilot LED provided on the top surface of the case 63
When lit, it indicates "r power on".

In addition, the front surface of the case 63 is provided with engaging protrusions 39, 39, 40, 40 and lock pieces 45 similar to those provided on the front surface of the video and/or audio output block 3 and the power supply block 4. .

Further, a shallow recess 60 similar to that formed in the rear surface of the power supply block 4 is formed on the rear surface of the case 63.

Therefore, this AC adapter 4A can be used in place of the power supply block 4.

(e-2, rechargeable power supply block) [Fig. 6] 4B is a rechargeable power supply block, and the case 69 includes a rechargeable battery,
For example, N1-Cd contains a cadmium battery.

A plurality of contacts 70 are provided on the upper right side of the front surface of the case 69.
．． A connector portion 71 having connectors 70, . . . is formed.

Further, on the front surface of the case 69, engaging protrusions 39, 39, 40, 40 and lock pieces 4 similar to those provided on the front surface of the video and/or audio output block 3 and the power supply block 4 are provided.
5, a shallow recess 60 similar to that formed on the rear surface of the power supply block 4 is formed on the rear surface of the case 69.

Therefore, this rechargeable power supply block 4B can be used in place of the power supply blocks 4 and 4A.

(e-3, Charging the rechargeable power supply block) [Figure 6] To charge the rechargeable power supply block 4B, the AC
Adapter 4A can be used. In that case, a charging adapter 72 is used.

The charging adapter 72 has a thin horizontally rectangular box shape from the front, and a connector portion 74 having a plurality of connector pins 73, 73, . . . on the upper left of the front and the upper right of the rear. .74 is provided. Connector pins 73, 73, . . . and 73 of these connector parts 74 and 74
．． 73, . . . are connected to each other in positions corresponding to each other.

Reference numeral 75 denotes a pilot LED provided on the top surface, and its lighting indicates that charging is in progress.

Connecting portions 19.19.2 similar to those formed on the rear surface of the video display block 2 and the video and/or audio output block 3 are provided on both the front and rear surfaces of the charging adapter 72.
0.20 and a lock hole 24 are formed.

Therefore, the engaging protrusion 39.39.4 of the AC adapter 4A
0,40 to the connection part 19.19.2 of the charging adapter 72
0.20 (details of this combination will be described later).

), and furthermore, the engaging protrusion 39. of the rechargeable power supply block 4B.
39.40.40 to the connection part 19. of the charging adapter 72.
19, 20, 20, contacts 67, 67, . . . of the connector section 66 of the AC adapter 4A and contacts 70, 70, . . . of the connector section 71 of the rechargeable power supply block 4B.
・Since the two are connected via the connector parts 74, 74 of the charging adapter 72, the rechargeable power supply block 4B can be charged by inserting the plug 65 of the AC adapter 4A into a commercial AC power outlet. can.

(f. Usage Examples) [FIGS. 3 to 5, FIGS. 8 and 9] Next, some usage examples of the above-mentioned television monitor device 1 will be described.

(f-1, Use as a television receiver) [Figures 3, 5, 8, 9] First, when the television monitor device 1 is used as a television receiver, the image display A television tuner block 3 is connected to the rear side of the block 2, and a power supply block 4 is connected to the rear side of the television tuner block 3.

The television tuner block 3 is connected to the rear side of the video display block 2 as follows.

The engaging protrusion 39.39 formed on the front surface of the TV tuner block 3 is connected to the lower half of the recess 21.21 of the connecting portion 19.19 formed on the rear surface of the video display block 2.
The engaging protrusion 40.40 of the TV tuner block 3 is connected to the recess 21.21 of the connecting portion 20.20 of the video display block 2.
(See Figures 8 (A) and (B)). At this time, the lock piece 45 of the TV tuner block 3 first has its tip slope 45b facing the video display block 2.
By contacting the slope 24b of the edge of the lock hole 24 and then moving forward, the lock piece 45 is deflected and receives a displacement force to the left due to the sliding of the slopes 45b and 24b. is pushed to the left, thereby causing the tip 45a of the lock piece 45 to fit into the lock hole 24.
(See Fig. 8(B)).

From the above state, the television tuner block 3 is moved slightly upward with respect to the video display block 2. Then, the engagement piece 42 of the engagement protrusion 39, 39, 40, 40.
42, . . . are the eaves pieces 2 of the connecting portions 19, 19, 20, 20.
2.22, . . . into the front side, and at the same time engage the engaging projections 39. Engagement Article 43.43,...
is the slit 23.23 of the connecting part 19.19.20.20
,... engages. The upper portions of the TV tuner block 3 with respect to the video display block 2 are the engagement protrusions 39, 39, 40, the protrusions 41, 41 of 40, and so on.
is the eave piece 22.22 of the connecting part 19.19.20.20,・
This is done until it touches the bottom edge of... In this way,
Engagement protrusion 39.39.4 of TV tuner block 3
0.40 is the connection part 19.19.2 of the video display block 3
0.20 (see FIG. 8(C)). and,
During this time, lock piece 45 of TV tuner block 3
The front end portion 45a moves upward in the lock hole 24 of the video display block 2, and connects the engaging protrusion 39.39.40.40 of the TV tuner block 3 with the connecting portion 19.19.20. of the video display block 2. 20 is connected, it will be located above the lock edge 24a in the lock hole 24. Therefore, the lock piece 45 has a front end portion 45 due to its elasticity.
a returns to the right, and its lower end is in close proximity to the locking edge 24a (see FIG. 8(C)). As a result, when attempting to move the TV tuner block 3 downward with respect to the video display block 2, the TV tuner block 3
The lower end of the front end 45a of the lock piece 45 abuts against the lock edge 24a of the lock hole 24 of the video display block 2, and further downward movement is prevented. For this purpose, the engaging protrusion 39.39.40.40 of the TV tuner block 3
and the connection part 19.19.20.20 of the video display block 2
The connection with is locked.

When the TV tuner block 3 is coupled to the video display block 2 in this way, the connector pins 18, 18, . ．．
38,... is sold as a bonded thread.

Then, the engaging protrusions 39, 39, 40, 40 provided on the front surface of the power supply block 4 are connected to the connecting portion 1 formed on the rear surface of the TV tuner block 3 in the same manner as described above.
Connected to 9.19.20,20. With this, the connector pins 49, 49, . . . of the connector section 48 of the TV tuner block 3 and the connector section 5 of the power supply block 4
5 contacts 56, 56, . . . are connected.

As described above, by combining the video display block 2, television tuner block 3, and power supply block 4, it can be used as a television receiver. In addition, in place of the power supply block 4, use the aforementioned AC adapter 4A.
Alternatively, it is of course possible to use the rechargeable power supply block 4B.

Therefore, when you slide the power switch button 29 upward to turn the power on, the power supply block 4 switches the tuner, etc. of the TV tuner block 3 and the video display block 2.
Power supply voltage is supplied to

As a result, the video and/or audio signals are sent from the tuner of the TV tuner block 3 to the video display block 2, so power supply voltage is also supplied to the video and/or audio output circuit of the video display block 2, and the liquid crystal display panel Video is output to port 8, and audio is output to earphone jack 13, so if you plug in a plug for headphones or earphones (not shown) here, you can listen to the audio.

In addition, for example, the front surface is provided with the engaging protrusion 39, 39, 40, 40, the lock piece 45, and the connector part, and the rear surface is provided with the connecting part 19, 19, 20, 2o, the lock hole 24, and the connector part, and the speaker and the speaker. If a speaker block equipped with a drive circuit is coupled between the video display block 2 and the television tuner block 3, audio can also be heard through the speaker.

Incidentally, reference numeral 76 is a stand which is convenient for viewing the television monitor device 1 at the most convenient angle when placed on a desk or the like, and each part is integrally formed of synthetic resin.

77 is a planar, approximately rectangular plate-shaped base;
Engagement grooves 78, 78, . . . are formed at approximately equal intervals from the approximate center to the rear end.

The length of 79 in the front and back direction is about one third of that of base 77.
The thin hinge 8 is attached to the front edge of the base 77.
Connected via 0.

Reference numeral 81 denotes a mounting piece, whose length in the front-rear direction is approximately two-thirds that of the base 77, and is connected to the upper edge of the intermediate piece 79 via a thin hinge 82. In addition, this mounting piece 8
An engaging protrusion 83 that protrudes downward is formed at the rear end of 1 .

A connecting piece 84 projects upward from the rear end edge of the mounting piece 81. The angle formed between the front surface of the connecting piece 84 and the upper surface of the mounting piece 81 is approximately 90°.

Reinforcement ribs 85 and 85 are formed along the left and right edges of the rear surface of the connecting piece 84 on the polished side, and the lower ends thereof are connected to the mounting piece 81.

Thus, the stand 76 connects the intermediate piece 79 to the base 77.
By bending the mounting piece 81 upward and slightly backward relative to the middle piece 79, and by bending the mounting piece 81 backward relative to the intermediate piece 79, and engaging the engagement protrusion 83 of the mounting piece 81 with the engagement groove 78 on the upper surface of the base 77, The mounting piece 81 is in an upwardly inclined state. The inclination angle of the mounting piece 81 can be changed by changing the engagement groove 78 that engages the engagement protrusion 83. That is, if it is engaged with the engagement groove 78 on the front side, the inclination angle becomes large, and conversely, if it is engaged with the engagement groove 78 on the rear side, the inclination angle becomes small.

Then, by engaging both side edges of the connecting piece 84 of the stand 76 with the engagement grooves 62, 62 formed on both sides of the shallow recess 60 formed on the rear surface of the power supply block 4, the television monitor device 1 can be attached to the stand 76. is stably supported.

(F-2, Use as a monitor device) [Figure 4] When used as a monitor device for a VTR, video camera, or laser disc player, a TV tuner is not required, so the power supply is installed on the rear of the video display block 2. Combine block 4. That is, video display block 2
The engaging protrusion 39.39.40.40 of the power supply block 4 is connected to the connecting portion 19.19.20.20 of the power supply block 4.

In this case, if it is desired to listen to audio through a speaker, a speaker block as described above may be connected between the video display block 2 and the power supply block 4.

And an external video and/or audio output device 8 such as a VTR.
6 and video/audio output jack 12 of video display block 2
When the external video and/or audio output device 86 enters the playback state, video and/or audio signals are input to the video display block 2, so the video display block 2 The switch means operates to supply the power supply voltage from the power supply block 4 to the video and/or audio output circuit of the video display block 2, which allows it to be used as a monitor device.

In order to separate the connected blocks, push in the pressed portion 46 of the rear block and release the front end 4 of the lock piece 45.
5a to the left so that its lower end escapes to the left from the lock edge 24a of the lock hole 24 of the front block, and then move the rear block 8 downwards relative to the front block. For example, the engaging pieces 42, 42, . . . and the eaves piece 22
．． Since the engagement with 22,... is released, then,
The engagement protrusions 39, 39, 40, 40 of the rear block can be pulled out from the recesses 21, 21, . . . of the front block.

(G. Effects of the Invention) As is clear from the above description, the small TV tuner of the present invention is a small TV tuner in which a telescoping rod antenna is rotatably attached to the housing, and includes: The present invention is characterized in that a concave groove is formed on the side surface of the casing where the rod antenna is positioned when the rod antenna is stored, and some of the switch operation parts are positioned within the concave groove.

Accordingly, in the small TV tuner of the present invention, even if the hand goes to the side of the case along which the rod antenna is placed in order to put the rod antenna into use, the operating part of the switch remains in the recessed groove. Therefore, there is almost no risk that the hand will touch the operation part of the switch and perform an erroneous operation. and,
By placing the switch operation part on the side that the rod antenna runs along when it is stored, one more side of the case is required to place the switch operation part, increasing the efficiency of space use. Contributes to the miniaturization of small TV tuners.

Furthermore, the addition of one side surface on which the switch operation section is arranged increases the number of variations in the arrangement of the switch operation section, making it possible to realize an arrangement of the switch operation section that is easy to use.

In the above-mentioned embodiments, the present invention is applied to a video and/or audio display block of a television monitor device in which a video display block, a video and/or audio output block, and a power supply block can be connected to and separated from each other. I showed it, but
Application of the present invention is not limited to such a device, but can also be applied to a device in which the above-mentioned blocks are integrated, that is, a so-called television receiver. In short, the term "tuner" in the present invention means not only a single tuner but also a tuner.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the small TV tuner of the present invention, in which Fig. 1 is a perspective view showing each block separated, and Fig. 2 is a perspective view showing each block separated and viewed from a different direction from Fig. 1. 3 is a perspective view of the device being used as a television receiver, FIG. 4 is a perspective view of the device being used as a monitor device such as a VTR, and FIG. 5 is a perspective view of the device with the rod antenna retracted. , FIG. 6 is a perspective view showing another example of the power supply block, (A) and (B) are views seen from different directions, FIG. 7 is a perspective view showing how to connect the two blocks, Fig. 8 is a perspective view showing the movement of the main parts from (A) to (C) when the blocks are combined, Fig. 9 is a perspective view showing an example of the usage state, and Fig. 10 is a conventional small TV. FIG. 2 is a perspective view showing an example of a tuner. Explanation of symbols 3... Compact TV tuner, 25... Housing, 30... Concave groove, 31... Rod antenna, 34a, 35.36... Perspective view of the operation part of some switches. 4 H4 also 0 Main part 7 view Figure 8 CA') Main part f + view Figure 8 (B)

Claims (1)

[Claims] This is a small TV tuner in which a telescopic rod antenna is rotatably attached to a housing, and a groove is formed on the side of the housing in which the rod antenna is positioned when the rod antenna is stored. A small TV tuner characterized by the fact that some of the switch operation parts are located in the