JP2012185458A - Wall-hanging plate body, display device with the same, and television receiver including display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall-hanging plate body capable of controlling movement of a wall-hanging screw body and preventing the screw body from being pulled out even when the screw body is moved by external force; to provide a display device with the wall-hanging plate body; and to provide a television receiver including the display device.SOLUTION: A wall-hanging plate body with an approximately strip shape has: a hole 13, a second hole 15 separated from the hole 13, and a projection piece 18 bent from the edge part of the second hole 15, in four places separated in a longitudinal direction and a width direction thereof; and a prevention piece 16 for facing the edge surface of one end part of the screw body 14 to prevent the screw body 14 from being pulled out from the side of the one end part by engaging and holding the one end part of the screw body 14 with a screw hole 14a into the hole 13, and bending the tip part of the projection piece 18 to the side of the hole 13.

Description

  The present invention relates to a wall-mounting plate that is attached to a display device and is suitable for hanging the display device, a display device including the same, and a television receiver including the same.

  Thin display devices such as television receivers can be reduced in thickness and weight, thereby reducing the amount of protrusion when hung on the wall and reducing the load applied to the wall.

  On the rear side of the display device having a display surface on the front side, a plurality of circuit boards such as a power circuit board and a shield plate that covers the circuit boards and blocks electron waves are mounted. The shield plate is provided with holes at four locations separated vertically and laterally, and one end of a screw body having a screw hole is press-fitted and fixed to each of the holes, and one end of the screw body is crimped. This prevents the screw body from being pulled out rearward, and the hanging tool is attached by a male screw that is screwed into the screw hole of each screw body (see, for example, Patent Document 1). This display device is hung on a desk with a hanging tool, or is hung on a wall with a hanging tool.

JP 2000-333100 A

  By the way, the display device described in Patent Document 1 is relatively small, and since the hanging tool serves both as a desk hanging and a wall hanging, the hanging tool is always mounted on the display device. However, display devices such as television receivers tend to increase in size, and with the increase in size of display devices, a stand for exclusive use for flooring and a wall hanging tool dedicated to wall hanging are required. The floor-mounted and wall-mounted display devices differ only in the stand and the wall hanging tool, and the stand mounting portion and the wall hanging member mounting portion are provided so that the stand or the wall hanging device can be attached.

  When placed on the floor, the wall hanging tool is not required, and the stand is attached to the stand mounting portion. When the wall hanging is performed, the stand is not necessary, and only the wall hanging tool is attached to the wall hanging tool mounting portion.

  The wall-hanging attachment portion has holes formed at four locations separated in the longitudinal direction and the width direction of the substantially rectangular wall-hanging plate body, and one end portion of a screw body having a screw hole is fitted and held in each hole. In addition, it is configured such that a wall hanging tool can be attached by inserting a male screw into a screw hole of each screw body. In addition, the inter-hole dimension of the wall-hanging attachment part, the dimension of the screw hole, and the like are standardized by the VESA (Video Electronics Standards Association) standard so that various wall-hanging parts can be attached.

  However, as described in Patent Document 1, the structure of the wall-hanging attachment portion is one in which screw bodies are fitted and fixed in four holes, and the stand is attached to the stand attachment portion and placed on the floor. When an external force such as an impact is applied to the tip of the screw body from the outside, such as when transporting without attaching the wall hanging tool, the screw body moves due to the external force, and the screw body is removed from the hole. There is a possibility that the circuit board mounting part in the display device will come off and drop off, and the circuit board part may be electrically short-circuited by the dropped screw body.

  The present invention has been made in view of such circumstances, and the main purpose is to regulate the movement of the screw body even if the wall-hanging screw body is moved by an external force, and to remove the screw body. An object of the present invention is to provide a wall-hanging plate, a display device, and a television receiver including the same.

  Another object of the present invention is to provide a wall-hanging plate, a display device, and a television receiver including the wall-hanging plate that can easily obtain a wall-hanging plate that can prevent the screw body from being pulled out without increasing the number of parts. To provide an apparatus.

  The wall-hanging plate according to the present invention has a mounting portion attached to a display device and a hole penetrating in the thickness direction, and one end of a screw body is fitted and held in the hole. It has a blocking piece that faces the end face of the one end and prevents the screw body from being pulled out from the one end.

  In this invention, even if an external force such as an impact is applied to the screw body in a state where the wall-hanging plate body is attached to the display device by the attachment portion, the screw body may move in the axial length direction, Since the movement of the screw body can be restricted by the blocking piece and the screw body can be prevented from being pulled out from the hole, the screw body falls into the display device and is electrically short-circuited. You can eliminate things.

Further, the wall-hanging plate according to the present invention includes a second hole spaced from the hole, and a projecting piece that is connected to the edge of the second hole on the blocking piece side, and the blocking piece is disposed at the tip of the second hole. It is preferable to have a configuration including:
In this invention, the second hole and the projecting piece can be formed when the hole into which the screw body is inserted is formed, and after the screw body is fitted and held, the tip of the projecting piece Since the blocking piece is formed by bending the part, the blocking piece can be easily obtained without increasing the number of parts, the extraction of the screw body can be prevented, and the blocking piece can be prevented from falling off. The cost of the plate for use can be reduced.

Moreover, it is preferable that the wall-hanging plate body according to the present invention has a substantially strip shape, and the holes and blocking pieces are arranged at four locations separated in the longitudinal direction and the width direction.
In this invention, even if any one of the four screw bodies fitted and held in the four holes moves in the axial direction in the hole, the movement of the screw body Can be individually controlled by a blocking piece corresponding to each of the holes, and the screw body can be prevented from being pulled out of the hole.

In the wall-hanging plate according to the present invention, it is preferable that the screw body is a female screw, and a flange portion facing the blocking piece is provided at the one end portion.
In this invention, since the flange portion of the screw body fitted and held in the hole is in contact with one surface around the hole, it is influenced by the screw input of the male screw screwed into the screw hole of the screw body. The movement of the screw body in the hole can be prevented at the collar without any trouble.

In addition, a display device according to the present invention includes a display device and the wall-hanging plate body according to the above-described invention in which the mounting portion is attached to the display device.
In the present invention, even if an external force such as an impact is applied to the rear side of the television receiver placed on the floor and the screw body is pressed in the axial length direction, the screw body is prevented from moving. Therefore, it is possible to prevent the screw body from being pulled out, and thus it is possible to eliminate an electrical short circuit caused by the screw body.

The television receiver according to the present invention further includes a receiving unit that receives a television broadcast signal, and the receiving unit receives the television broadcast signal and displays the television image on the display surface of the display device. It is characterized by including an apparatus.
In the present invention, a television broadcast signal can be received and a television image can be displayed on the display surface of the display device.

  According to the present invention, it is possible to prevent the screw body from being pulled out by an external force by the blocking piece, so that it is possible to eliminate a situation in which the screw body falls into the display device and is electrically short-circuited. it can.

It is a disassembled perspective view which shows schematic structure of a television receiver. It is a disassembled perspective view which shows schematic structure of a liquid crystal display device. It is a front side perspective view which shows the structure of the board for wall hangings which concerns on this invention. It is a back side perspective view showing the composition of the wall hangings board concerning the present invention. It is an expansion perspective view which shows the structure of the principal part of the board for wall hangings which concerns on this invention. It is the VI-VI line expanded sectional view of FIG. It is an expanded sectional view showing the composition of the principal part of the board for wall hangings concerning the present invention. It is a front view which shows the structure of the board for wall hangings which concerns on this invention. It is a rear view which shows the structure of the board for wall hangings which concerns on this invention. It is a side view which shows the structure of the board for wall hangings which concerns on this invention. It is a rear view which shows the structure of a display apparatus provided with the board for wall hangings which concerns on this invention. It is a back side perspective view which shows the structure of a display apparatus provided with the board for wall hangings which concerns on this invention. It is an expanded sectional view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is an expanded sectional view which shows the structure of the principal part of the display apparatus which concerns on this invention. It is an expanded sectional view which shows the other structure of the prevention piece part in the board for wall hangings which concerns on this invention. It is an expanded sectional view which shows the other structure of the prevention piece part in the board for wall hangings which concerns on this invention. It is an expanded sectional view which shows the other structure of the prevention piece part in the board for wall hangings which concerns on this invention. It is an expanded sectional view which shows the other structure of the prevention piece part in the board for wall hangings which concerns on this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. The description will be made by taking as an example a display device in which a wall-hanging plate is attached to a thin display device having a display surface on the front side and having a liquid crystal display panel having a substantially rectangular parallelepiped shape. The display device includes a liquid crystal display device including a backlight unit, and includes a reception unit that receives a television broadcast signal, and the reception unit receives the television broadcast signal and displays a television image on the liquid crystal display panel. including. FIG. 1 is an exploded perspective view showing a schematic configuration of a television receiver, and FIG. 2 is an exploded perspective view showing a schematic configuration of a liquid crystal display device.

  The television receiver includes a liquid crystal display device C, a frame body D and a cover E that are accommodated so as to hold the liquid crystal display device C, a power source F, a tuner G, and a stand H. The liquid crystal display device C has a horizontally long rectangular shape (rectangular shape) as a whole, and is housed in the frame D and the cover E in a vertically placed state. As shown in FIG. 2, the liquid crystal display device C includes a liquid crystal display panel J and a backlight unit K that is an external light source. The liquid crystal display panel J and the backlight unit K are supported by a frame-like bezel or the like. A panel module is configured by being integrally held by the frames L and M.

  3 is a front perspective view showing the configuration of the wall hanging plate according to the present invention, FIG. 4 is a rear perspective view showing the configuration of the wall hanging plate according to the present invention, and FIG. 5 is a wall hanging plate according to the present invention. FIG. 6 is an enlarged cross-sectional view taken along line VI-VI in FIG. 3, FIG. 7 is an enlarged cross-sectional view showing the structure of the main part of the wall-hanging plate according to the present invention, and FIG. Is a front view showing the configuration of the wall-hanging plate according to the present invention, FIG. 9 is a rear view showing the configuration of the wall-hanging plate according to the present invention, and FIG. 10 is a side view showing the configuration of the wall-hanging plate according to the present invention. FIG.

  The illustrated wall-hanging plate A has a display surface for displaying a TV image on the front side, and a plurality of circuit boards such as an electric circuit board are mounted on the rear side of the display part having a substantially rectangular parallelepiped, and the front side of the display part A rear side from the peripheral part is arranged in the cabinet of the display device covered with the cabinet, and the peripheral part is attached to the rear side of the display part.

  The wall-hanging plate A is formed of a metal plate having a substantially rectangular shape, having a step 10 in the thickness direction in the middle in the longitudinal direction, and has a plurality of insertion holes on both ends in the longitudinal direction. Mounting portions 11, 12 are provided, on the central side between the stepped portion 10 and the first mounting portion 11, four holes 13, and four screw bodies 14 each having one end fitted and held therein, A second hole 15 separated from each of the holes 13 in the direction along the surface, and a blocking piece 16 that is bent in the thickness direction from the edge of the second hole 15 and faces the end surface of one end of the screw body 14 are provided. ing. Further, three mounting holes 17 for mounting the stand are opened on the second mounting portion 12 side of the step portion 10. In addition, a plurality of weight reduction holes 19 are formed in the central portion in the width direction between the step portion 10 and the first attachment portion 11.

  The first attachment portion 11 is formed by bending the tip end portion of a piece whose one end side is bent in one direction in the thickness direction outward at a right angle. The second attachment portion 12 is formed by bending the distal end portion of a piece, in which the width direction both sides are bent in the thickness direction one side at the other end side, outwardly at a right angle.

  The holes 13 are round holes opened in a circular shape at four locations separated in the longitudinal direction and the width direction. The second hole 15 has a part in an incision formed in a substantially U-shape toward the side separated from the hole 13 at four positions spaced inward in the width direction from each of the holes 13 to the one blocking piece 16 side in the thickness direction. It is established by bending. The protruding piece 18 made of the bent piece is bent at a tip at a right angle toward the hole 13, and a blocking piece 16 connected to the protruding piece 18 is provided.

  The blocking piece 16 faces the end face of the one end portion on the hole 13 side of the screw body 14 and restricts the screw body 14 from moving in the axial length direction. The blocking piece 16 is opposed to the end surface of the one end by bending the tip of the protruding piece 18 after the one end of the screw body 14 is fitted into the hole 13.

  The screw body 14 is a female screw having a screw hole 14 a at the center portion of the cylinder portion 14 b, and a flange portion 14 c is provided at one end portion inserted into the hole 13, and the flange portion 14 c is provided on one surface around the hole 13. In addition, the end surface of the flange portion 14c is in contact with the blocking piece 16 or opposed with a slight gap therebetween, so that the movement of the screw body 14 is restricted. The blocking piece 16 abutting against the end surface of the flange portion 14c presses the flange portion 14c against the one surface and attaches the flange portion 14c to the one surface, and the movement of the screw body 14 does not depend on the external force. Be blocked. Further, the blocking piece 16 facing the end surface of the flange portion 14c with a slight gap does not press the flange portion 14c against the one surface, but abuts against the flange portion 14c of the screw body 14 slightly moved from the hole 13, and the screw. The movement of the body 14 is prevented.

  11 is a rear view showing the configuration of the display device including the wall-hanging plate A according to the present invention, FIG. 12 is a rear perspective view showing the configuration of the display device including the wall-hanging plate A according to the present invention, and FIG. 14 and 14 are enlarged cross-sectional views showing the configuration of the main part of the display device according to the present invention. The wall-hanging plate A configured as described above has a display surface for displaying a TV image on the front side, and a rear side of the display device B on which a plurality of circuit boards such as a power circuit board is mounted on the rear side. Mounted on.

  The display device B has a substantially rectangular parallelepiped shape, a liquid crystal panel having a display surface on the front side, an optical sheet disposed on the rear side of the panel, a backlight unit, and a metal support 20 that supports components such as these panels. And a plurality of circuit boards 21 juxtaposed on the rear surface of the support 20.

  On the rear surface of the support 20 in the display device B, a wall-hanging plate A is attached to the center in the horizontal direction, and a cabinet-shaped front partition 22 having a frame shape is attached to the front peripheral edge of the display device B. A rear cabinet body 23 (see FIGS. 13 and 14) having a deep dish shape is mounted on the rear side from the peripheral edge of B. Four through holes 23a into which the tips of the screw bodies 14 in the wall-hanging plate body A are inserted are formed in the vertical and lateral central portions of the cabinet rear part 23, and the through holes 23a are opened. Three insertion holes corresponding to the attachment holes 17 for attaching the stand are formed on the lower side. In addition, an opening for inserting a stand is provided in the lower central portion of the rear cabinet 23 at the center in the horizontal direction. The display device B, the wall hanging plate A, the cabinet front part 22 and the cabinet rear part 23 constitute a display device. Moreover, the cabinet front part 22 and the cabinet rear part 23 comprise the cabinet.

  The support 20 has a shallow box shape having a frame portion 20a and a cover plate 20b that closes the open side of the frame portion 20a. The frame portion 20a supports components such as a panel, and a plurality of cabinet rear divisions 23 are provided. It is removably attached to the frame portion 20a with a male screw, and the wall-hanging plate body A is at the center of the lateral direction on the rear surface of the lid plate 20b, and the screw hole 14a of the screw body 14 is facing backward. The first mounting portion 11 of the wall hanging plate A is attached to the upper portion of the lid plate 20b with a male screw 24, and the second mounting portion 12 is attached to the male screw 24 at the lower portion of the lid plate 20b. The tip of the screw body 14 on the screw hole 14a side is inserted into each of the through holes 23a of the rear cabinet body 23 (see FIG. 13), and the screw holes 14a are opened to the outside.

  When the display device is placed on the floor, the upper part of the stand is inserted through the opening opened at the lower part of the cabinet rear part 23 and is inserted through the insertion hole provided at the lower part of the cabinet rear part 23. When the screw is screwed into the mounting hole 17, the upper part of the stand is attached to the wall hanging plate A, and the standing state of the display device can be maintained by the stand. In this case, the front end of the screw body 14 in the wall hanging plate A is only inserted into the through hole 23a of the cabinet rear part 23 (see FIG. 13), and the wall hanging tool is not attached. When an external force is applied to the tip of the screw body 14, the screw body 14 is pressed toward the circuit board 21 and the screw body 14 is about to move. However, the screw body 14 is arranged at the end of the screw body 14 that is fitted into the hole 13. Since the blocking piece 16 is located at a position facing the certain flange portion 14 c, the flange portion 14 c of the screw body 14 comes into contact with the blocking piece 16, and the movement of the screw body 14 can be restricted. Can be prevented from being pulled out to the circuit board 21 side. Further, even when an external force is applied to the tip of the screw body 14 from the rear side during conveyance other than when the display device is placed on the floor, the movement of the screw body 14 can be restricted by the blocking piece 16.

  When the display device is wall-mounted, the male thread 25 is screwed into the screw hole 14a of the screw body 14 opened in the through hole 23a of the cabinet rear part 23, whereby the wall hanging tool 26 is attached to the wall hanging plate A. Can be installed. In this case, the stand cannot be attached.

  Further, the hole 13 and the second hole 15 provided in the wall-hanging plate A having a substantially strip shape are not at both ends in the longitudinal direction where the mounting portions 11 and 12 are provided, and are not at both sides in the width direction. Since it is opened at the center in the longitudinal direction and at the center in the width direction, the blocking piece is formed by bending the protruding piece 18 connected to the edge of the second hole 15 without changing the shape of the outer edge of the wall-hanging plate A. 16 can be formed, and a high-strength wall-hanging plate A having the blocking pieces 16 can be obtained.

  15 to 18 are enlarged cross-sectional views showing other configurations of the blocking piece 16 portion of the wall-hanging plate A according to the present invention. FIG. 15 is a side in which a protruding piece 18 having a substantially U-shaped cut piece is bent slightly longer than the thickness of the flange 14c, and the blocking piece 16 connected to the protruding piece 18 is separated from the screw body 14. The screw body 14 is configured to be prevented from being pulled out from the hole 13.

  FIG. 16 is a side in which a protruding piece 18 in which a piece in a cut having a substantially U-shape is bent is relatively longer than the thickness of the flange 14 c, and the blocking piece 16 connected to the protruding piece 18 is separated from the screw body 14. The screw body 14 is configured to be prevented from being pulled out from the hole 13.

  FIG. 17 shows that the protruding piece 18 in which the part in the cut having a substantially U-shape is bent is relatively longer than the thickness of the flange 14c, and the distal end portion of the blocking piece 16 connected to the protruding piece 18 is set to the base. Inclined to the screw body 14 side, the tip of the blocking piece 16 is in contact with the end face of the flange portion 14c of the screw body 14, and is configured to press the flange portion 14c to prevent the movement of the screw body 14 regardless of external force. is there.

  In FIG. 18, the protruding piece 18 in which the part in the cut having a substantially U-shape is bent is made relatively longer than the thickness of the flange 14 c, and the blocking piece 16 connected to the protruding piece 18 is connected to the flange 14 c of the screw body 14. Are arranged so as to be substantially parallel to each other so that the screw body 14 can be prevented from being pulled out from the hole 13.

  In the embodiment described above, one wall-hanging plate A having a substantially strip shape has the four holes 13. However, the wall-hanging plate A is spaced apart in the lateral direction. Each of the two wall-hanging plate bodies may have a structure having two holes spaced apart from each other in the vertical direction.

A Wall plate 11, 12 Mounting portion 13 Hole 14 Screw body 14a Screw hole 15 Second hole 16 Blocking piece 18 Projection piece B Display device

Claims (6)

  In a wall-hanging plate having an attachment portion attached to a display device and a hole penetrating in the thickness direction, and one end portion of the screw body is fitted and held in the hole, the screw is opposed to the end surface of the one end portion, and the screw A wall-hanging plate having a blocking piece for preventing the body from being pulled out from the one end side.   2. The wall-hanging plate according to claim 1, further comprising: a second hole spaced from the hole; and a projecting piece that is connected to an edge of the second hole on the side of the blocking piece and has the blocking piece disposed at a tip thereof. body.   The wall-hanging plate according to claim 1 or 2, wherein the wall and the blocking piece are arranged at four locations that are substantially strip-shaped and spaced apart in the longitudinal direction and the width direction.   4. The wall-hanging plate according to claim 1, wherein the screw body is a female screw, and a flange portion facing the blocking piece is provided at the one end portion.   A display device comprising: a display device; and the wall-hanging plate according to claim 1, wherein the mounting portion is attached to the display device.   6. A television including a display device according to claim 5, further comprising a reception unit that receives a television broadcast signal, wherein the reception unit receives the television broadcast signal and displays a television image on a display surface of the display device. Image receiving device.

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