JP3106027U - Television cabinet - Google Patents

Abstract

An object of the present invention is to prevent the occurrence of sink marks and to sufficiently increase the strength of the base portion of a boss.
A television cabinet including a front cabinet for mounting a CRT, and a rear cabinet connected to a rear portion of the front cabinet,
In order to mount the CRT, a plurality of CRT mounting bosses extending substantially horizontally rearward are provided on the inner wall at the four corners of the front cabinet, and the CRT mounting boss is provided with two or more posts and plate-like pieces provided in the vicinity thereof. A plurality of ribs are formed in a lattice shape on the inner wall surface in the vicinity of the base of the CRT mounting boss and the post, and the shape of the lattice formed by the ribs is substantially rectangular; A television cabinet, wherein the length of three grids is substantially equal to the diameter of the CRT mounting boss.
[Selection] Figure 2

Description

  The present invention relates to a reinforcement structure for a base portion of a CRT mounting boss.

  The CRT of the television receiver is mounted on a plurality of bosses formed on the back surface of the front plate of the front cabinet of the receiver. Such a boss for mounting a CRT is formed to extend rearward from the front plate of the front cabinet. However, since the CRT is heavy, if the strength of the root portion of the boss is weak, the boss may be broken. . In order to increase the strength of the base of the boss, it is necessary to increase the thickness of the base, but simply increasing the thickness will cause sink marks on the front plate surface when resin molding the front cabinet. It may occur, adversely affect the appearance, and be treated as a defective product. Therefore, in order to solve this problem, it is necessary to have a structure for preventing the occurrence of sink marks and increasing the strength of the root portion of the boss, and various inventions and ideas related thereto have been proposed.

  In Patent Literature 1, a boss for mounting a rear cabinet and a holding rib are integrally formed on an inner surface of a front cabinet of a television cabinet, and the holding rib and a CRT guide rib are connected. In addition, the rib base has a thinner structure to prevent sink marks on the outer surface of the cabinet, and a part farther from the base has a thicker structure to improve strength.

  In Patent Literature 2, a triangular structure in which three cylindrical posts are connected by plate-shaped pieces around a CRT mounting rib formed on an inner surface of a front cabinet of a television cabinet is formed. A reinforcing rib is provided on the shaped structure. Thereby, even if a large load or impact is applied to the front cabinet, it is possible to prevent the synthetic resin from being whitened around the CRT mounting boss.

  In Patent Literature 3, the resin flow is generated by adjusting the thickness near the base of the boss portion in the resin molded product, and the orientation of the filler flowing in the boss portion and the filling flowing in the bottom surface adjacent to the boss portion are described. The orientation of the material is prevented from being orthogonal. Specifically, shrinkage is reduced by reducing the area near the base of the boss, so that sinks can be prevented from occurring at the base of the boss, and by increasing the thickness near the base of the boss, the thickness of the boss can be reduced. It is possible to prevent the occurrence of welds at the protrusions, and to improve the strength.

  Patent Literature 4 deals with a configuration for preventing sinks and warpage caused by curing of a resin, which occur in a light-curing resin molding die. The box frame of the molding die is made of a thin resin with low heat resistance, and a large number of reinforcing ribs are integrally formed on the back surface thereof in a lattice shape, and are filled with a backing material. With this structure, the occurrence of sink marks and warpage after curing of the photocurable resin is prevented, and the strength is improved.

  Patent Literature 5 deals with a synthetic resin molded product that prevents sink marks in a thick portion by internal foaming. The internal foaming is generated by providing a plurality of reinforcing ridges and injecting and filling a molten material mixed with a foaming agent into a cavity of a mold. Volume expansion occurs due to this foaming, and shrinkage of the raw material accompanying cooling is corrected, so that generation of sink marks can be prevented.

In Patent Document 6, the strength of a panel is improved by combining two panels that are injection-molded in a stack mold. Each of these panels is formed with a grid-like rib, and a boss is formed at the intersection of the ribs or in the middle.
JP-A-6-311459 (page 2, FIG. 1) Japanese Utility Model Registration No. 3073842 (paragraphs 0017 to 0020, FIG. 1) JP-A-2004-58413 (paragraphs 0012 to 0018, FIGS. 1 and 2) JP-A-10-128754 (paragraphs 0018 to 0019, FIGS. 1 and 2) JP-A-11-192627 (paragraph 0012) JP-A-9-104081 (Page 4, FIG. 3A and FIG. 4A)

  As described above, in Patent Literature 1, although the strength at which the boss is held by the cabinet is improved by connecting the holding rib and the boss, the thickness of the root portion of the boss is not necessarily increased. Improvement is not enough. In Patent Literature 2, it is possible to prevent whitening of the root portion of the boss by using the triangular structure and the reinforcing ribs. However, since the thickness of the root portion of the boss is not increased, the strength is not increased. Insufficient improvement. In Patent Document 3, although the strength is improved by adjusting the thickness of the root portion of the boss portion, when the thickness of the root portion is increased, sink may occur on the surface of the cabinet, Conversely, when the thickness of the root portion is reduced, the strength cannot be improved even if the occurrence of sink marks can be prevented. In Patent Literature 4, a grid-shaped reinforcing rib is formed and filled with a backing material to prevent sink and warpage of a thin box frame and improve strength. Such a structure cannot be applied to improving the strength near the root of the CRT mounting boss. Also in Patent Document 5, although the sink in the thick portion is prevented by foaming, the strength is not sufficiently improved because the thickness is not increased. In Patent Literature 6, grid-like ribs are formed on the panel, and the boss is formed at or at the intersection of the ribs. However, since the thickness of the root portion of the boss is not increased, the strength is not increased. Cannot be said to have improved sufficiently.

  Therefore, an object of the present invention is to prevent the occurrence of sink marks and to sufficiently increase the strength of the base portion of the boss.

  The television cabinet according to the first invention is a television cabinet including a front cabinet for mounting a CRT and a rear cabinet connected to a rear portion of the front cabinet. A plurality of CRT mounting bosses extending substantially horizontally are provided, and the CRT mounting bosses are connected to two or more posts provided in the vicinity of the bosses by plate-like pieces. A plurality of ribs are formed in a grid on the inner wall surface, and a grid formed by the ribs is formed in a substantially rectangular shape so that the length of the three grids is substantially equal to the diameter of the CRT mounting boss. It is characterized by having done.

  According to this television cabinet, the strength of the CRT mounting boss held by the front cabinet is increased by connecting the CRT mounting boss to two or more posts provided in the vicinity of the boss by the plate-shaped piece. I can do it. Also, a plurality of ribs are formed in a lattice shape on the inner wall surface near the root of the CRT mounting boss and the post connected to the boss, and the shape of the lattice is substantially rectangular. Since the continuous length is substantially equal to the diameter of the CRT mounting boss, the lattice is formed as compared to the case where the thickness near the base of the CRT mounting boss and the post is simply increased. Since the volume of the resin in the portion is reduced, the occurrence of sink marks in the appearance of the front cabinet can be prevented, and the thickness can be substantially increased by this structure. It is possible to increase the strength near the root of.

The television cabinet according to the second invention is a television cabinet including a front cabinet for mounting a CRT and a rear cabinet connected to a rear part of the front cabinet. A plurality of horizontally extending CRT mounting bosses are provided, and ribs are formed in a lattice pattern on the inner wall surface near the root of the CRT mounting boss.

  According to this television cabinet, by forming a grid-like rib on the inner wall surface near the base of the CRT mounting boss, the volume of the resin in the portion where the grid is formed is larger than when the thickness is simply increased. And the thickness can be increased substantially without causing sink marks on the appearance of the front cabinet, so that the strength near the root of the boss can be increased.

  The television cabinet according to the third invention is characterized in that, in the television cabinet according to the second invention, the shape of the lattice formed by the plurality of ribs in the vicinity of the root of the CRT mounting boss is substantially rectangular. Features.

  According to this television cabinet, the lattice shape formed by the plurality of ribs is substantially rectangular in the vicinity of the root of the CRT mounting boss, so that the rectangular shape is substantially rectangular compared to the case where the wall thickness is simply increased. Since the volume of the resin in the portion forming the lattice is surely reduced, the occurrence of sink marks in the appearance of the front cabinet can be prevented, and the wall thickness can be increased. The strength in the vicinity can be reliably increased.

  The television cabinet according to the fourth invention is the television cabinet according to any of the second and third inventions, wherein the diameter of the boss for mounting the CRT is such that three grids formed by a plurality of ribs are continuous. It is characterized by being substantially equal to

  According to this television cabinet, since the diameter of the CRT mounting boss is substantially equal to the length of the three grids formed by the plurality of ribs, the strength at the root of the CRT mounting boss and its vicinity and the front are improved. This makes it possible to prevent the occurrence of sink marks in the appearance of the cabinet.

  The television cabinet according to the fifth invention is characterized in that, in the television cabinet according to the second invention, the shape of the lattice formed by the plurality of ribs is triangular near the base of the CRT mounting boss. And

  According to this television cabinet, the strength of the root portion of the CRT mounting boss and the vicinity thereof can be increased also by making the shape of the lattice formed by the plurality of ribs triangular. The occurrence of sink marks can be prevented.

  The television cabinet according to the sixth invention is the television cabinet according to the second invention, wherein the shape of the lattice formed by the plurality of ribs is hexagonal near the base of the CRT mounting boss. Features.

  According to this television cabinet, the strength of the root portion of the CRT mounting boss and the vicinity thereof can be increased also by making the lattice shape formed by the plurality of ribs hexagonal. The occurrence of sink marks can be prevented.

  The television cabinet according to the seventh invention is the television cabinet according to the second invention, wherein the lattice formed by the plurality of ribs has a wrinkled shape near the base of the CRT mounting boss. It is characterized by.

  According to this television cabinet, the strength of the root portion of the CRT mounting boss and the vicinity thereof can be increased also by forming the lattice formed by the plurality of ribs into a wrinkle shape. It is possible to prevent the occurrence of sink marks in the product.

  The television cabinet according to the eighth invention is the television cabinet according to the second to seventh inventions, wherein the CRT mounting boss is connected to a post provided in the vicinity thereof by a plate-like piece. Features.

  According to this television cabinet, the strength of the CRT mounting boss held by the front cabinet can be increased by connecting the CRT mounting boss to the post provided in the vicinity thereof by the plate-shaped piece. I can do it. Further, the strength of the base portion of the post and the vicinity thereof can be increased, and the sink of the front cabinet can be prevented.

  The television cabinet according to the ninth invention is characterized in that, in the television cabinet according to the eighth invention, the number of posts provided near the CRT mounting boss is two or more.

  According to this television cabinet, the strength at which the CRT mounting boss is held by the front cabinet by connecting the CRT mounting boss to two or more posts provided in the vicinity thereof by the plate-shaped piece. Can be sufficiently increased.

  ADVANTAGE OF THE INVENTION According to this invention, the structure which prevents generation | occurrence | production of a sink and increases the intensity | strength of the base part of a boss can be provided.

(1) First Embodiment [Overall Configuration]
The cabinet of the television receiver according to the first embodiment of the present invention includes a front cabinet 1 that covers the front side of the cabinet and a rear cabinet (not shown) that covers the back side.

  FIG. 1 is a rear view of the front cabinet of the television cabinet according to the first embodiment of the present invention as viewed from the back. The front cabinet 1 shown in FIG. 1 has a top plate 7, two side plates 8, a bottom plate 9, and a front plate 10, and the front plate 10 has an image display surface of a CRT (not shown). An opening 6 to be deployed is formed. The post 4 and the plate-like piece 11 are formed as a frame that surrounds the periphery of the opening 6. Outside the four corners of the opening 6, a front plate 10 for fixing a CRT is provided. A CRT mounting boss 3 extending substantially horizontally from the rear is formed. Below the opening 6 in the front plate 10, a speaker installation section 13, a video tape insertion slot 14, a DVD insertion slot 15, and the like are provided.

[Structure of CRT mounting boss and its vicinity]
FIG. 2 is an enlarged view of the CRT mounting boss 3 formed outside the upper left corner of the opening 6 and the vicinity thereof in the front cabinet 1 of the television cabinet according to the first embodiment of the present invention. This is illustrated.

  The CRT mounting boss 3 is formed to extend substantially horizontally rearward from the front plate 10 and has a cylindrical shape. The CRT mounting boss 3 is connected to the top plate 7 and the side plate 8 by the plate-like piece 5, and the post 4 formed to be in contact with the side plate 8 by the plate-like piece 5, and the top plate 7. And a post 4 formed so as to be in contact with. The CRT is fixed by screwing the CRT mounting boss 3 and a CRT mounting bracket (not shown) fixed to the CRT.

On the back surface of the front plate 10, near the base of the CRT mounting boss 3 and near the base of the post 4, ribs 12 for reinforcing the strength of the boss 3 are provided in a substantially vertical direction and a substantially horizontal direction of the front plate 10. A plurality of ribs 12 formed in both directions intersect at regular intervals to form a substantially rectangular lattice 16. The shape of each of the ribs 12 is a rectangular parallelepiped, and the area when four ribs 12 are arranged in parallel at regular intervals to form nine square grids is the diameter of the CRT mounting boss 3. The area is equivalent to the area of a square as one side. In other words, the diameter of the CRT mounting boss 3 is substantially equal to the length of the three lattices 16 (FIG. 3).

  In this embodiment, the number of the posts connected to the CRT mounting boss is two. However, the structure having three or more posts increases the strength of holding the CRT mounting boss on the front plate of the front cabinet. May be.

  Further, in the present embodiment, the shape of the lattice 16 formed by the ribs 12 is a quadrangle, but a polygon such as a triangle or a hexagon may be employed.

  In the present embodiment, the lattice 16 is formed by arranging a plurality of ribs 12 each having a rectangular parallelepiped shape. However, by arranging curved ribs in a wrinkle shape, the root portion of the boss and It may be configured to increase the strength in the vicinity thereof.

[Effect]
According to this embodiment, since the ribs 12 are formed in a lattice shape near the root of the CRT mounting boss 3, the volume of the lattice portion formed by the ribs 12 is smaller than when the thickness is simply increased. The thickness of the CRT mounting boss and the vicinity thereof can be increased without causing sink marks in the appearance of the front plate when forming the resin. I can do it.

  In addition, since the ribs 12 are formed in a lattice shape near the base of the post 4, the strength can be increased also at the base of the post 4 and in the vicinity thereof, and the appearance of the front plate can be prevented from sinking. You can do it.

  In addition, since the CRT mounting boss 3 is connected to the top plate 7 and the side plate 8 by the plate-shaped piece 5, the strength of the CRT mounting boss 3 held by the front plate 10 can be increased.

  Further, since the CRT mounting boss 3 is connected to the two posts 4 by the plate-like piece portion 5, the strength of the CRT mounting boss 3 held by the front plate 10 can be further increased.

Rear view of the front cabinet according to the present embodiment Enlarged view of a CRT mounting boss according to the present embodiment and its vicinity. The figure which shows the relationship between the boss | hub for CRT mounting by this embodiment, and the magnitude | size of a grating | lattice.

Explanation of reference numerals

REFERENCE SIGNS LIST 1 Front cabinet of television receiver 2 CRT mounting boss and its vicinity 3 CRT mounting boss 4 Post 5 Plate-like piece 6 Opening 7 Top plate 8 Side plate 9 Bottom plate 10 Front plate 11 Rib 12 Rib 13 Speaker mounting part 14 Video tape slot 15 DVD slot 16 Lattice

Claims (9)

A television cabinet including a front cabinet for mounting a CRT and a rear cabinet connected to a rear portion of the front cabinet,
In order to mount the CRT, a plurality of CRT mounting bosses extending substantially horizontally rearward are provided on the inner wall at the four corners of the front cabinet, and the CRT mounting boss is provided with two or more posts and plate-like pieces provided in the vicinity thereof. A plurality of ribs are formed in a lattice shape on the inner wall surface in the vicinity of the base of the CRT mounting boss and the post, and the shape of the lattice formed by the ribs is substantially rectangular; A television cabinet, wherein the length of three grids is substantially equal to the diameter of the CRT mounting boss. A television cabinet including a front cabinet for mounting a CRT and a rear cabinet connected to a rear portion of the front cabinet,
In order to mount the CRT, a plurality of CRT mounting bosses extending substantially horizontally toward the rear are provided on the inner wall at the four corners of the front cabinet, and a plurality of ribs are formed on the inner wall surface near the root of the CRT mounting boss in a grid pattern. A television cabinet characterized in that it is formed in a television cabinet.   The television cabinet according to claim 2, wherein a shape of a lattice formed by the plurality of ribs is substantially rectangular near a root of the CRT mounting boss.   4. The television cabinet according to claim 2, wherein a diameter of the CRT mounting boss is substantially equal to a length in which three lattices formed by the plurality of ribs are continuous. 5.   The television cabinet according to claim 2, wherein a shape of a lattice formed by the plurality of ribs is triangular near a root of the CRT mounting boss.   The television cabinet according to claim 2, wherein a shape of a lattice formed by the plurality of ribs is hexagonal in the vicinity of a root of the CRT mounting boss.   The television cabinet according to claim 2, wherein a shape of a lattice formed by the plurality of ribs is wrinkled near a base of the CRT mounting boss.   The CRT mounting boss is connected to a post provided in the vicinity of the CRT mounting boss by a plate-like piece, and the plurality of ribs are formed in a lattice shape near the root of the post. The television cabinet according to any one of claims 2 to 7, wherein: The television cabinet according to claim 8, wherein the number of the posts provided near the CRT mounting boss is two or more.

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