JP2008083562A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device in which mounting of a front cover can be efficiency carried out, even when molding errors occur, by providing either one of a front cover or a front cabinet with a groove portion alternately provided with engaging portions on the facing side faces, and providing the other with a portion to be engaged which engages with the engaging portion. <P>SOLUTION: The circumference of an aperture 1e of the front cabinet 1 is provided with the groove portion 10 over the entire circumference, and each of outer groove side faces 10a and inner groove side faces 10b, mutually facing the gear portion 10, is alternately provided with each of a plurality of claw portions 11a and 11b; and a projected rim 30, having a tongue piece portion 31, is installed around the entire circumference of the front cover 3, and a hole 32 opened in the tongue piece portion 31 is engaged with the claw portions 11a and 11b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a display device that can efficiently attach a cover to a cabinet.

  A conventional television receiver includes a cabinet having a fixed end and a back cover having a fixing claw engaged with the fixed end. This television receiver is provided with a fixed end and a fixing claw, so that the cabinet and back cover can be attached without using a fixing member such as a screw, the number of parts required for the assembly of the television receiver is reduced, and the television receiver The assembly cost is reduced (see Patent Document 1).

  Conventionally, a liquid crystal display device including a front cabinet and a rear cabinet has been proposed. The front cabinet and the rear cabinet are generally manufactured by integral molding of resin, and when the front cabinet is manufactured by integral molding of resin, it is necessary to provide a coupling rib for coupling with the rear cabinet on the back side. However, when the coupling rib is provided on the back side, the front cabinet is recessed in the front, so-called sink marks are generated, and there is a possibility that the appearance design is impaired.

Therefore, by opening an engagement hole in the front cabinet and attaching a front cover having an engagement claw that engages with the engagement hole to the front of the front cabinet, conceal sink marks generated in the front cabinet, and the appearance of the liquid crystal display device The design was improved.
JP-A-4-132376

  In the television receiver described in Patent Document 1, when the cabinet or the back cover is formed with a dimension exceeding the tolerance, the positions of the fixed end and the fixed claw do not correspond, and the cabinet is attached to the back cover. This makes it difficult to reduce the yield of the cabinet or the back cover.

  Further, even in the conventionally proposed liquid crystal display device, depending on the molding conditions when the front cabinet and the front cover are integrally molded with resin, the front cabinet or the front cover is molded with a size exceeding the tolerance. The positions of the engagement holes and the engagement claws do not correspond to each other, and the engagement of the engagement holes and the engagement claws becomes insufficient, which may reduce the yield of the front cabinet or the front cover.

  The present invention has been made in view of such circumstances, and a groove portion is provided in one of the cabinet or the cover portion, an engagement portion is provided in each of the opposing side surfaces of the groove portion, and the other of the cabinet or the cover portion is provided. By providing an engaged portion with which the engaging portion engages, a display device capable of sufficiently engaging the cabinet or the cover portion even when the cabinet or the cover portion is formed with a dimension exceeding a tolerance is provided. The purpose is to do.

  Further, by providing a plurality of the groove portions along the circumferential direction of the opening portion or the cover portion, the rigidity of the cabinet or the cover portion can be improved as compared with the case where the groove portion is provided over the entire circumference of the opening portion or the cover portion. Therefore, an object of the present invention is to provide a display device that can hardly cause distortion of the cabinet or the cover portion.

  In addition, by alternately providing the engaging portions along the circumferential direction of the opening portion or the cover portion at each of the side surfaces, the engaging portion and the engaged portion are engaged at a biased position. An object of the present invention is to provide a display device that can prevent and stably support the cover portion even after the cover portion is attached to the cabinet.

  Further, by providing a plurality of the groove portions along the circumferential direction of the opening portion or the cover portion, and providing the engaging portion on one side surface of the one groove portion and the other side surface of the other groove portion adjacent to the one groove portion, It is an object of the present invention to provide a display device that can prevent the engaging portion and the engaged portion from engaging at a biased position and can stably support the cover portion even after the cover portion is attached to the cabinet.

  Moreover, since the said engaging part is made into a nail | claw part and the said to-be-engaged part is made into the hole part engaged with the said nail | claw part, since the said hole part is opening with respect to all of the said side surface, the said hole It is an object of the present invention to provide a display device in which a portion can be engaged with any of the claw portions provided on the side surface.

  A display device according to the present invention includes a display unit having a front surface as a display surface, a cabinet that surrounds the periphery of the display unit, and has an opening on the front surface, and a cover that covers the periphery of the opening. In the display device, a groove is provided on one of the periphery of the opening or the periphery of the cover, and a protrusion is provided on the other. The groove includes an engaging portion on each of opposite side surfaces, and the protrusion The portion includes an engaged portion that engages with the engaging portion.

  In the present invention, a groove is provided in one of the cabinet or the cover, an engagement is provided on each of the opposing side surfaces of the groove, and the other is engaged with the engagement on the other of the cabinet or the cover. When the cabinet or cover part is formed with a dimension exceeding the tolerance by providing a joint part, and the engaging part provided on one side of the groove part and the engaged part are not sufficiently engaged The engagement portion provided on the other side surface facing the one side surface is sufficiently engaged with the engaged portion.

  In the display device according to the present invention, a plurality of the groove portions are provided along a circumferential direction of the opening portion or the cover portion.

  In the present invention, by providing a plurality of the groove portions along the circumferential direction of the opening portion or the cover portion, compared to the case where the groove portion is provided over the entire circumference of the opening portion or the cover portion, the cabinet or The rigidity of the cover part can be improved.

  The display device according to the present invention is characterized in that the engaging portions are alternately provided along the circumferential direction of the opening portion or the cover portion at each of the side surfaces.

  In the present invention, the engaging portions are alternately provided along the circumferential direction of the opening or the cover portion on each of the side surfaces, so that the engaging portion and the engaged portion are engaged at a biased position. The cover portion is stably supported even after being attached to the cabinet.

  Further, the display device according to the present invention includes a display unit having a front surface as a display surface, a cabinet surrounding the periphery of the display unit, having an opening portion on the front surface, and a cover portion covering the periphery of the opening portion. In the display device provided, a plurality of groove portions are provided along a circumferential direction of the opening portion or the cover portion on one side of the opening portion or the periphery of the cover portion, and a protrusion portion is provided on the other side. The groove portion has opposing side surfaces, and an engaging portion is provided on one side surface of the one groove portion and the other side surface of the other groove portion adjacent to the one groove portion, and the protrusion portion engages with the engaging portion. An engaged portion is provided.

  In the present invention, the engaging portion is provided on one side surface of the one groove portion and the other side surface of the other groove portion adjacent to the one groove portion, so that the engaging portion and the engaged portion are engaged at a biased position. The cover portion is stably supported even after being attached to the cabinet.

  In the display device according to the present invention, the engaging portion is a claw portion, and the engaged portion is a hole portion that engages with the claw portion.

  In the present invention, the engaging portion is a claw portion, and the engaged portion is a hole portion that engages with the claw portion, so that the hole portion opens to any of the side surfaces. Therefore, it can be engaged with any of the claw portions provided on the side surface.

  In the display device according to the present invention, a groove is provided in one of the cabinet or the cover, an engagement is provided on each of the opposing side surfaces of the groove, and the engagement is provided on the other of the cabinet or the cover. By providing the engaged portion to be engaged with the cabinet, the cabinet or the cover portion is formed with a dimension exceeding the tolerance, and the engaging portion provided on one side surface of the groove portion and the engaged portion are sufficiently engaged. If they do not match, the engaging portion provided on the other side facing the one side is sufficiently engaged with the engaged portion. Therefore, even if a molding error occurs in the cabinet or the cover part, the cover part can be attached to the cabinet, and the yield of the cabinet or the cover part can be improved.

  Further, in the display device according to the present invention, a plurality of the groove portions are provided along the circumferential direction of the opening portion or the cover portion, so that the groove portion is provided over the entire circumference of the opening portion or the cover portion. In addition, since the rigidity of the cabinet or cover part is improved, the cabinet or cover part is less likely to be distorted.

  In the display device according to the present invention, the engaging portion and the engaged portion are provided by alternately providing the engaging portion on each of the side surfaces along the circumferential direction of the opening or the cover portion. Since it is prevented from engaging at a biased position and the cover part is stably supported even after being attached to the cabinet, the cover part can be swung by the cabinet, for example, by vibration during transportation. Can be prevented.

  Further, in the display device according to the present invention, the engaging portion and the engaged portion are provided by providing the engaging portion on one side surface of the one groove portion and the other side surface of the other groove portion adjacent to the one groove portion. Since it is prevented from engaging at a biased position and the cover part is stably supported even after being attached to the cabinet, the cover part can be swung by the cabinet, for example, by vibration during transportation. Can be prevented.

  In the display device according to the present invention, the engaging portion is a claw portion, and the engaged portion is a hole portion that engages with the claw portion, so that the hole portion is free from any of the side surfaces. However, since it is open, it can be engaged with any of the claw portions provided on the side surface. Therefore, it is only necessary that the hole is formed in the projection, and the projection has a simple configuration, so that the molding cost of the cabinet or the cover can be reduced.

(Embodiment 1)
Hereinafter, a display device according to the present invention will be described in detail with reference to the drawings illustrating Embodiment 1. 1 is a front view showing the display device according to the first embodiment, FIG. 2 is a schematic exploded perspective view of the front cabinet 1 and the front cover 3 seen through the inside of the groove portion 10, and FIG. 3 is a schematic cross-sectional view for explaining an engaged state of the front cover 3. FIG.

  In the figure, reference numeral 1 denotes an exterior of the front side of the display device, which is a rectangular frame-shaped front cabinet having an opening 1 e on the front surface, and surrounds the periphery of the rectangular display unit 2. The display unit 2 is supported inside the front cabinet 1 in a state of being close to the opening 1e. A box-shaped rear cabinet (not shown) is provided on the rear side of the front cabinet 1 so as to be fitted to the front cabinet 1, and a backlight and a circuit board (not shown) are supported inside the rear cabinet.

  The outer edge portion of the front cabinet 1 is a rectangular outer frame portion 1a. On the back surface of the outer frame portion 1a, a fitting recess 1b is formed which is recessed in the front direction for fitting to the outer edge portion of the rear cabinet. The outer frame portion 1a has a U-shaped cross section.

  The inner edge portion of the front cabinet 1 is a rectangular frame plate-like inner frame portion 1c, the outer peripheral portion of the inner frame portion 1c protrudes toward the back side, and the cross-sectional shape of the inner frame portion 1c is an inverted L-shape. It has become. The inner peripheral portion on the front side of the rectangular frame plate-shaped back plate portion 1d is connected to the end surface of the outer peripheral portion of the inner frame portion 1c, and the end surface of the outer peripheral portion of the back plate portion 1d is the outer frame portion 1a. The outer frame portion 1a, the inner frame portion 1c, and the back plate portion 1d are integrally formed. The inner peripheral portion of the inner frame portion 1c forms an opening 1e.

  A groove portion 10 is formed by the side surface of the outer frame portion 1a on the inner frame portion 1c side, the side surface of the inner frame portion 1c facing the side surface, and the front surface of the back plate portion 1d, and covers the entire circumference of the opening portion 1e. The groove portion 10 is provided. A side surface of the outer frame portion 1a on the inner frame portion 1c side is an outer groove side surface 10a, and a side surface of the inner frame portion 1c facing the outer groove side surface 10a is an inner groove side surface 10b, and a back plate portion 1d. The front surface of this is a bottom surface 10c.

  Claw portions 11a, 11a,... Having an inclined surface for reducing the groove width of the groove portion 10 toward the back surface are equally arranged on the outer groove side surface 10a, and the inner groove facing the outer groove side surface 10a. On the side surface 10b, there are claw portions 11b, 11b,... With inclined surfaces that reduce the groove width of the groove portion 10 toward the back surface, and claw portions 11a, 11a,. They are equally distributed along the direction at appropriate intervals. Further, through holes 12, 12,... Through which a tongue piece portion 31 described later is inserted are formed in the bottom surface 10c in the vicinity of the claw portions 11a and 11b.

  The configuration of the front cover 3 for decoration provided around the opening 1e will be described. The front cover 3 has a rectangular plate frame shape having an appropriate width for covering the front surface of the front cabinet 1. In the vicinity of the outer peripheral edge of the front cover 3, it is formed so as to rise in the back direction, and an elastic protrusion 30 is provided around the entire circumference of the front cover 3. Protrudes toward the back surface, and the cross-sectional shape of the front cover 3 is substantially U-shaped. A part of the ridge 30 is a tongue piece portion 31, 31,... Having a portion protruding toward the back direction, and the claw portion 11 a or 11 b is provided at the proximal end of the tongue piece portion 31. A hole 32 to be engaged is opened.

  The attachment of the front cover 3 to the front cabinet 1 will be described. First, the protrusion 30 of the front cover 3 is inserted into the groove 10. By inserting the protrusion 30 into the groove portion 10, the tip of the tongue piece portion 31 comes into contact with the inclined surface of the claw portion 11a or 11b, and the tongue piece portion 31 is elastically deformed and bent. When the front cover 3 is further pushed in, the tongue piece 31 slides on the inclined surface in a bent state, and the tip portion of the tongue piece 31 passes over the top of the inclined surface and is inserted into the insertion hole 12. The Then, the hole portion 32 reaches the top of the inclined surface, and the tongue piece portion 31 returns to its original shape by the elastic restoring force. The cover 3 is attached to the front cabinet 1.

  The front cabinet 1 and the front cover 3 are formed of resin, and when both are formed with a dimension within tolerance, when the protrusion 30 is inserted into the groove 10, as shown in FIG. Since the hole portion 32 is located at the approximate center between the outer groove side surface 10a and the inner groove side surface 10b, the hole portion 32 is sufficiently engaged with either the claw portion 11a or 11b.

  When the projection 30 is inserted into the groove 10 when the front cabinet 1 is molded with a size smaller than the minimum dimension within the tolerance or when the front cover 3 is molded with a dimension larger than the maximum dimension within the tolerance, As shown in FIG. 3B, since the hole 32 is located closer to the outer groove side surface 10a, the claw part 11b does not fully engage with the hole part 32, but the claw part 11a is sufficient with the hole part 32. Engage with.

  When the front cabinet 1 is formed with a dimension larger than the maximum dimension within the tolerance, or when the front cover 3 is formed with a dimension smaller than the minimum dimension within the tolerance, the protrusion 30 is inserted into the insertion hole 12. 3C, since the hole 32 is positioned closer to the inner groove side surface 10b, the claw portion 11a does not fully engage with the hole 32, but the claw portion 11b does not engage the hole 32. Engage fully.

  In the display device according to the first embodiment, the front cabinet 1 or the front cover 3 is provided with a groove 10, and the outer groove side surface 10 a and the inner groove side surface 10 b are provided with claw portions 11 a or 11 b. 1 or the other of the front cover 3 is provided with a hole 32 that engages with the claw portion 11a or 11b, so that the front cabinet 1 or the front cover 3 is formed with a dimension exceeding a tolerance, and either of the claw portions 11a or 11b If either of the holes 32 is not sufficiently engaged, the other of the claw portions 11a or 11b and the hole 32 are sufficiently engaged. Therefore, even if a molding error occurs in the front cabinet 1 or the front cover 3, the front cover 3 can be attached to the front cabinet 1, and the yield of the front cabinet 1 or the front cover 3 can be improved. Can do.

  Further, the claw portions 11a and 11b and the inner groove side surface 10b are alternately provided on the outer groove side surface 10a and the inner groove side surface 10b at appropriate intervals along the circumferential direction of the opening 1e. 32 is prevented from engaging at a biased position, and the front cover 3 is stably supported even after being attached to the cabinet, so that the front cover 3 is vibrated when it is carried in the front cabinet 1, for example. Can be prevented from swinging.

  Further, the claw portions 11a and 11b are provided on the outer groove side surface 10a and the inner groove side surface 10b, and a protrusion 30 having a hole portion 32 that engages with the claw portions 11a and 11b is provided on the front cover 3, whereby the hole The portion 32 opens to both the outer groove side surface 10a and the inner groove side surface 10b, and can engage with both the claw portions 11a and 11b. Therefore, it is only necessary that the hole 32 is formed in the protrusion 30, and the front cover 3 has a simple configuration, and the molding cost of the front cover 3 can be reduced.

  The claw portions 11a and 11b may be configured to have elasticity. Further, the shape is not limited to the protrusion 30, and a pillar shape or other protruding shape may be provided. Examples of the display device include a liquid crystal display device, a plasma display device, an SED display, and an EL display.

(Embodiment 2)
Hereinafter, a display device according to the present invention will be described in detail with reference to the drawings showing a second embodiment. FIG. 4 is a schematic exploded perspective view of the front cabinet 1 and the front cover 3 shown through the inside of the groove 10.

  A plurality of grooves 10, 10,... Having appropriate lengths are provided along the circumferential direction of the opening 1 e around the opening 1 e opened in the front of the front cabinet 1. The outer groove side surface 10a of the groove portion 10 is provided with a claw portion 11a having an inclined surface for reducing the groove width of the groove portion 10 toward the back surface, and the inner groove side surface 10b facing the outer groove side surface 10a is provided on the inner groove side surface 10b. The claw portions 11b having inclined surfaces that reduce the groove width of the groove portion 10 toward the back are alternately provided at positions different from the claw portions 11a along the circumferential direction of the opening 1e of the front cabinet 1. ing. Further, an insertion hole 12 through which a tongue piece portion 31 described later is inserted is formed on the back side of the groove portion 10.

  The configuration of the front cover 3 for decoration provided around the opening 1e will be described. The front cover 3 has a rectangular plate frame shape having an appropriate width for covering the front surface of the front cabinet 1. In the vicinity of the outer peripheral edge of the front cover 3, the front cover 3 is formed so as to rise in the back direction, and a plurality of elastic ridges 30, 30,. Two tongue pieces 31, 31 having portions protruding toward the back surface are provided adjacent to a part of the ridge 30, and the claw is provided at the base end of the tongue pieces 31, 31. Holes 32, 32 that engage with the part 11a or 11b are provided.

  The attachment of the front cover 3 to the front cabinet 1 is the same as in the first embodiment, and a detailed description thereof is omitted.

  In the display device according to the second embodiment, by providing a plurality of the groove portions 10 along the circumferential direction of the opening portion 1e or the front cover 3, the groove portion 10 is provided on the entire periphery of the opening portion 1e or the front cover 3. Since the rigidity of the front cabinet 1 or the front cover 3 is improved as compared with the case where the front cabinet 1 or the front cover 3 is provided, the front cabinet 1 or the front cover 3 is less likely to be distorted.

  A plurality of claw portions 11a or 11b provided on the outer groove side surface 10a or the inner groove side surface 10b of the groove portion 10 may be provided. In this case, a hole portion 32 corresponding to the claw portion 11a or 11b is opened. The

  Among the configurations of the display device according to the second embodiment, the same reference numerals are given to the same configurations as those in the first embodiment, and detailed description thereof is omitted.

(Embodiment 3)
Hereinafter, a display device according to the present invention will be described in detail with reference to the drawings showing a third embodiment. FIG. 5 is a schematic exploded perspective view of the front cabinet 1 and the front cover 3 shown through the inside of the groove 10.

  A plurality of grooves 10, 10,... Having appropriate lengths are provided along the circumferential direction of the opening 1 e around the opening 1 e opened in the front of the front cabinet 1. A claw portion 11a having an inclined surface that reduces the groove width of the groove portion 10 toward the back surface is provided on the outer groove side surface 10a of the one groove portion 10. On the inner groove side surface 10b of another groove portion 10 adjacent to the one groove portion 10, a claw portion 11b having an inclined surface for reducing the groove width of the groove portion 10 toward the back surface is provided. Further, an insertion hole 12 through which a tongue piece portion 31 described later is inserted is formed on the back side of the groove portion 10.

  The configuration of the front cover 3 for decoration provided around the opening 1e will be described. The front cover 3 has a rectangular plate frame shape having an appropriate width for covering the front surface of the front cabinet 1. In the vicinity of the outer peripheral edge of the front cover 3, the front cover 3 is formed so as to rise in the back direction, and a plurality of elastic ridges 30, 30,. A part of the ridge 30 is a tongue piece portion 31 having a portion protruding toward the back direction, and a hole portion 32 that engages with the claw portion 11a or 11b is formed at the base end of the tongue piece portion 31. Has been established.

  The attachment of the front cover 3 to the front cabinet 1 is the same as in the first or second embodiment, and a detailed description thereof is omitted.

  By providing the claw portion 11a on the outer groove side surface 10a of one groove portion 10 and the claw portion 11b on the inner groove side surface 10b of another groove portion 10 adjacent to the one groove portion 10, the claw portion 11a and 11b and the hole 32 are prevented from being engaged at a biased position, and the front cover 3 is stably supported even after being attached to the front cabinet 1, so that the front cover 3 is For example, it is possible to prevent rocking due to vibration during transportation.

  Among the configurations of the display device according to Embodiment 3, the same components as those in Embodiment 1 or 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

1 is a front view showing a display device according to Embodiment 1. FIG. FIG. 3 is a schematic exploded perspective view of the front cabinet and the front cover of the display device according to the first embodiment, with the inside of the groove portion seen through. FIG. 3 is a schematic cross-sectional view illustrating an engaged state of the front cabinet and the front cover of the display device according to Embodiment 1. FIG. 6 is a schematic exploded perspective view of a front cabinet and a front cover that are seen through a groove portion of a display device according to a second embodiment. FIG. 10 is a schematic exploded perspective view of a front cabinet and a front cover that are seen through a groove portion of a display device according to a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front cabinet 1e Opening part 2 Display part 3 Front cover 10 Groove part 10a Outer groove side surface 10b Inner groove side surface 11a, 11b Claw part 30 Projection (projection part)
32 holes

Claims (5)

In a display device comprising: a display unit having a front surface as a display surface; a cabinet surrounding the periphery of the display unit; an opening having a front surface; and a cover portion covering the periphery of the opening;
A groove is provided on one of the periphery of the opening or the periphery of the cover, and a protrusion is provided on the other. The groove includes an engaging portion on each of opposite side surfaces, and the protrusion has the engagement portion. A display device comprising an engaged portion that engages with a joint portion.   The display device according to claim 1, wherein a plurality of the groove portions are provided along a circumferential direction of the opening portion or the cover portion.   The display device according to claim 1, wherein the engaging portion is provided alternately along the circumferential direction of the opening or the cover portion on each of the side surfaces. In a display device comprising: a display unit having a front surface as a display surface; a cabinet surrounding the periphery of the display unit; an opening having a front surface; and a cover portion covering the periphery of the opening;
A plurality of groove portions are provided along the circumferential direction of the opening portion or the cover portion on one side of the opening portion or the periphery of the cover portion, and a protruding portion is provided on the other side. The engaging portion is provided on one side surface of the one groove portion and the other side surface of the other groove portion adjacent to the one groove portion, and the protruding portion engages with the engaging portion. A display device comprising:   The display device according to claim 1, wherein the engaging portion is a claw portion, and the engaged portion is a hole portion that engages with the claw portion.

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