JP2851792B2 - Large display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized display device for illuminating a display means such as a display film from behind with a light from a long light source.

[0002]

2. Description of the Related Art As this kind of large-sized display device, for example, the one disclosed in Japanese Patent Application No. 5-176229 is known.

[0003] In addition to the fluorescent lamp, accessory parts such as a ballast and an earth leakage breaker are provided inside the frame of the above-mentioned display device. Conventionally, these accessory parts are inserted with bolts from outside the frame. , And tightened with nuts from the inside.

However, in such a mounting mode, a bolt hole for inserting a bolt into the frame body must be accurately formed by drilling, which is troublesome and troublesome. In addition, since the head of the bolt is exposed to the outside, the appearance is impaired, and rainwater may enter through the bolt hole. In addition, since the head of the fixing bolt of the accessory is exposed to the outside of the frame, the overall appearance is impaired.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks, and in particular, eliminates the need to make a hole in the frame, and can also stop the accessory of the light source at an arbitrary position and improve the appearance of the display. Its purpose is to provide.

[0006]

Means for Achieving the Object In order to achieve the above object, a large-sized display device according to the present invention is provided with a display film or the like in a front opening of a frame in which an upper and lower frame and left and right vertical frames are framed in a box shape. In a large display device in which a display means is arranged and a long light source is arranged on the back side, a dovetail-shaped locking groove is integrally formed on the inner wall of any one of the frames in the longitudinal direction of the frame. The fixing means of the accessory for the long light source such as a ballast or a breaker is fixed to the groove along with the accessory .

The fastening means may comprise a bolt and a nut having a head fitted in the groove, and a seat fitted in the groove and a screw fixed to the seat. Axis and
It may be constituted by a nut screwed to the screw shaft, or may be constituted by a seat fitted into the groove and a screw or screw screwed into the seat, or It may be constituted by a screw or a screw directly screwed into the device.

[0008]

According to the above construction, the groove is formed along the longitudinal direction of the frame constituting the frame, so that the fastening means is moved along the groove to be stable.
It can be stopped at an arbitrary position together with accessories for the long light source, such as a vessel and a breaker . Moreover, it is stable in the groove
Together with the accessory parts for the long light source such as
This is for fixing the wearing means. Therefore, perforate the frame
The accessory of the long light source can be fixed at an arbitrary position inside the frame body without performing the shaping process .

The fastening means may be fixed to the groove.
Since there is no need to form holes or the like for inserting the fastening means into the frame, the efficiency of the assembling work is good.

Further, since the fastening means for fixing the attached parts is not exposed to the outside of the frame, the overall appearance is improved.

The fastening means comprises a bolt and a nut having a head fitted in the groove, or a seat fitted in the groove and a screw shaft fixed to the seat. It consists of a nut screwed to the screw shaft, and furthermore, it consists of a seat fitted to the groove and a screw or screw screwed to this seat, or it is screwed directly to the groove. The same effect as described above can be obtained also by using screws or screws.

[0012]

FIG. 1 is a front view showing a part of a large-sized display device according to the present invention in a cutaway view, FIG. 2 is an enlarged sectional view taken along line XX of FIG. 1, and FIG. FIG. 4 is an explanatory view of a mounting mode of a ballast, and FIG. 5 is an explanatory view of a mounting mode of a mounting screw. 6 to 8 are explanatory views of various examples of the fastening means.

In each of the drawings, reference numeral 1 denotes a box-shaped frame 1,
The frame 1 is formed by an upper frame 1a, a lower frame 1b, and left and right vertical frames 1c made of an extruded aluminum material into a square shape via a corner member 2.

Light source sockets 3 are fixed to the back side edges of the upper frame 1a and the lower frame 1b of the box-shaped frame 1, and a plurality of long light sources 4 (fluorescent lamps) are parallel to these sockets 3. It is installed.

On the inner wall of each frame, a dovetail-shaped locking groove 5 is integrally formed in the longitudinal direction of the frame 1, and the frame 1 is framed using the groove 5. Ballast 6
a, breakers 6b and other accessories for the long light source 4 are attached. That is, as shown in FIG.
A bolt 10 penetrates both sides of “a”. The head 10a of the bolt 10 is fitted into the groove 5, and a nut 11 is screwed on the opposite side of the bolt 10, thereby forming fastening means. The ballast 6a is firmly connected and fixed by fastening the nut 9 to the head 10a of the bolt 10. The corner tool 2 is similarly fixed to the groove 5 (see FIGS. 2 and 3).

Further, the head 10a of the bolt 10 through which a part of the accessory of the long light source 4 such as the breaker 6b is inserted.
Is also inserted into the groove 5, and the nut 11 is fastened to the bolt 10 to fix the accessory.

A back plate 12 provided on the back side of the frame 1 has a space between the long light sources 4 adjacent to each other.
A mirror-finished aluminum reflector 13 is arranged and fixed in parallel with the above, and the upper and lower sides of the opening are made of aluminum mirror-finished at right angles to the long light source 4 and the reflector 13. An end reflector 14 (which may be stainless steel) is provided.

Next, an outer panel body 15 is supported at the opening of the frame body 1 so as to be openable and closable, and an inner panel body 16b is supported inside the outer panel body 15 so as to be openable and closable. Outer panel body 15 and inner panel body 16
A display means 18 such as a display film or printed paper for displaying an advertisement, an advertisement, or a guide is sandwiched between the display means 18 and b. That is, the outer panel body 15 is formed by assembling a transparent panel 19 such as a transparent acrylic plate or a glass plate into a frame body 20, and the transparent panel 19 is fixed to the back side of each square frame via the stopper 21. . The inner panel body 16b is formed by framing a translucent panel 22 such as a milky white acrylic plate into a frame, and the translucent panel 22 is fixed to a front side of a rectangular frame 23 by screws.

Therefore, the light emitted from the long light source 4 is directly diffused and radiated to the display means 18 through the translucent panel 22 of the inner panel body 16b, and the light emitted from the side of the light source 4 is also emitted. Is reflected by the reflection plate 13 and the end reflection plate 14 and is irradiated on the display means 18, so that the entire display surface of the display means 18 can be made uniform in brightness.

Further, the outer panel body 15 and the inner panel body 1
One side of 6b is rotatably attached to one vertical frame 1c of the frame 1 via hinges 24 and 25, respectively. In contrast, L-shaped plate 26 is fixed to the other side of the outer panel body 15, the other vertical frame 1c of the L-shaped plate 26 is box-shaped frame 1
Is provided detachably with respect to the outer surface by a mounting screw 27 .

As shown in FIG. 5, the mounting screw 27 is
It passes through the opening of the groove 5 formed integrally with the inner wall of the groove 5 and is screwed to a screw receiving member 28 disposed inside the groove 5. The screw receiving member 28 is also fixed inside the groove 5 by the bolt 10 and the nut 11. Head portion of the bolt 10 is also fitted into the groove 5.

The mounting screw 26b is configured to engage and disengage with a U-shaped groove 31 formed at the end of the L-shaped plate 26 . An L-shaped plate 32 is screwed to the other side of the inner panel body 16b, and the L-shaped plate 32 is fixed to the front side edge of the frame body 1 by screwing.

Thus, when the display means 18 is attached, the outer panel body 15 is attached to the transparent panel 19 of the outer panel body 15 by rotating the outer panel body 15 through the hinge by loosening the screw 27 and rotating the outer panel body 15 through the hinge. Panel body 1
6b is separated from the translucent panel 22 of the inner panel body 1
Display means 18 such as a display film on the transparent panel 19 of FIG.
And the outer panel body 15 is closed and the display means 18 is closed.
May be held between the transparent panel 19 and the translucent panel 22. The same applies when the display means 18 is replaced.
When repairing the light source 4 etc., the inner panel body 16b
Also, it is sufficient to remove the screws and open and rotate.

Since the groove 5 is formed along the longitudinal direction of each of the upper and lower frames 1b and 1c as described above, the head 10a of the bolt 10 is moved along the groove 5. The bolt can be stopped at any position. Therefore, the accessory of the long light source 4 can be fixed at an arbitrary position inside the frame 1.

The grooves 5 need not be formed in all the frames. For example, it may be configured to be formed only on the vertical frame 1c. Further, a plurality of groove grooves 5 may be provided in parallel.

Further, since it is not necessary to form a bolt hole for inserting a bolt into the frame 1, the efficiency of the assembling work is good.

Further, fixing bolts 8 and 1
Since the heads 0, 29, etc. are not exposed outside the frame 1, the overall appearance is improved.

As the fastening means for fastening and fixing the accessory, in addition to the above-described example, for example, as shown in FIG. 6, a seat 8a is fixed to the screw shaft 8 by caulking or the like.
May be fitted into the groove 6b and the nut 11 is screwed into the screw shaft 8 to fasten an accessory (not shown). As shown in FIG. 7, a screw or screw 8 'and a receiving seat 8a' are provided. And may be constituted by screws or screws 8 'directly screwed into the groove 5 as shown in FIG.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a large-sized display device according to the present invention.

FIG. 2 is an enlarged sectional view taken on line XX of FIG. 1;

FIG. 3 is an enlarged sectional view taken on line YY of FIG. 1;

FIG. 4 is an explanatory view of a mounting mode of a ballast.

FIG. 5 is an explanatory view of a mounting mode of mounting screws.

FIG. 6 is an explanatory view of another example of the fastening means.

FIG. 7 is an explanatory view of still another example of the fastening means.

FIG. 8 is an explanatory view of still another example of the fastening means.

[Explanation of symbols]

1 frame 1a upper frame 1b lower frame 1c vertical frame 2 corner tool 4 long light source 5 groove 6a stabilizer 18 display means 10 bolt 11 nut

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Sakamoto 3-2-1 Kumagane, Shizuoka City, Shizuoka Pref. RIKEN Light Metal Industry Co., Ltd. (56) References Really Open 3-100315 (JP, U) Really Open Sho 60-6433 (JP, U) Jikken 49-40954 (JP, Y1) (58) Field surveyed (Int. Cl. ⁶ , DB name) G09F 13/04

Claims (5)

(57) [Claims] 1. A frame in which display means such as a display film is framed is arranged in an opening on the front side of a frame in which upper and lower frames and left and right vertical frames are framed in a box shape, and a long frame is provided on the back side of the frame. In a large-sized display device provided with a long light source, a dovetail-shaped locking groove is integrally formed on the inner wall of any of the frames in the longitudinal direction of the frame,
A large-sized display device, wherein fixing means for fixing the accessory of the long light source such as a ballast or a breaker is fixed together with the accessory in the groove. 2. The large display device according to claim 1, wherein said fastening means comprises a bolt and a nut having a head fitted into said groove. 3. The large display according to claim 1, wherein said fastening means comprises a seat fitted to said groove, a screw shaft fixed to said seat, and a nut screwed to said screw shaft. apparatus. 4. The large display device according to claim 1, wherein said fastening means comprises a seat fitted into said groove and a screw or screw screwed into said seat. 5. The large display device according to claim 1, wherein said fastening means is constituted by a screw or a screw directly screwed into said groove.