JPS5926155B2 - Manufacturing method of outer frame for television receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure and manufacturing method of an outer frame for a television receiver.

As shown in FIG. 11, there is an outer frame base portion 2 which has a portal shape and extends uniformly in the front and back direction, and a sloped ceiling which extends rearwardly of this outer frame base portion 2 and slopes downward from the rear. A plate 9, an inclined extension portion 3 having inclined side walls 10a and 10b tapering toward the rear, and an upright side wall Ta of the outer frame base portion 2.
, the lower end inner surface of Tb and the inclined both side walls 10a of the inclined extension part 3,
The outer frame 1 for a television receiver, which includes a bottom plate formed on the inner surface of the lower end of the frame 10b, is generally molded from synthetic resin.

Therefore, compared to a wooden outer frame for a television receiver, the outer frame is inferior in terms of elegance in appearance, solidity, and acoustics, and there is a problem in that the product value is reduced. Therefore, the inclined extension portion 3
In order to improve the commercial value of the outer frame 1 for a television receiver, it has been proposed to integrally form the outer frame 1 with wood, but this actually complicates the structure and increases the manufacturing process. , which leads to problems such as increased costs,
In the television receiver outer frame 1 made of wood, currently only the outer frame base portion 2 is used as the outer frame, and the inclined extension portion 3 is not formed, and the inclined extension portion 3 is formed of wood. However, the outer frame 1 of the television receiver is constructed by appropriately joining the outer frame base portion 2 and the inclined extension portion 3, and the wooden television receiver in which the inclined extension portion 3 is integrally formed of wood is constructed. It had the disadvantage of being inferior in commercial value in terms of cost, acoustics, etc. compared to the outer frame for aircraft. This invention was made in view of the above-mentioned conventional drawbacks, and in order to emphasize the elegance, solidity, and acoustics of the outer frame for a television receiver, it is made of wood, and its structure and manufacturing process are simplified. An object of the present invention is to provide a structure and manufacturing method for an outer frame for a television receiver, which reduces costs.

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 4, reference numeral 1 denotes a wooden outer frame of a television receiver, which is made up of an outer frame base part 2, an inclined extension part 3 extending to the rear of this outer frame base part 2, and a bottom plate 4. Become.

The outer frame base portion 2 is formed by forming a series of small-walled wooden outer panels 5 in a gate shape uniformly in the front-rear direction, and a large-walled wooden lining 6 bonded to the entire inner surface thereof. It is composed of both side walls 7a, 7b and a top plate 8.

The inclined extension part 3 has an inclined top plate 9 and inclined side walls 10a and 10b.
The inclined top plate 9 is inclined backwardly and is bonded to the wooden outer plate 5 that is continuous with the wooden outer plate 5 of the top plate 8 of the outer frame base portion 2 and the entire inner surface of the wooden outer plate 5. wooden lining 6
The inclined side walls 10a, 10b are tapered toward the rear so that the opposing distance between the side walls 10a, 10b becomes gradually smaller toward the rear, and the upright side walls 7a of the outer frame base portion 2 , rb, and a wooden lining 6 bonded to the entire inner surface of the wooden outer panel 5. , 9b and inclined both side walls 10a
, 10b are bonded 11 at their abutting portions, as is clear from FIG.

The bottom plate 4 is made of wood, and its both side end surfaces 4a and 4b are bonded to the lower inner surfaces of the upright side walls 7a and 7b of the outer frame base portion 2 and the lower end inner surfaces of the inclined side walls 10a and 10b of the inclined extension portion 3. ing.

In the figure, 12 indicates a ventilation hole. The outer frame 1 of the television receiver constructed as described above is manufactured by the following method.

That is, as shown in FIGS. 5a and 5b, a wooden outer panel 5 having a small wall thickness and a rectangular shape is bent at an angle θ along a bending line C1 parallel to its front end surface 5a and rear end surface 5b. Bend inward to form front horizontal part X, and rear inclined part X2
form.

Next, as shown in Fig. 6, the front horizontal part X1 and the rear inclined part
A thick wooden lining 6 is adhered to the entire inner surface of the substrate 2 to form an outer frame substrate X. Continuing, as shown in FIGS. 7a to 7c, there is a predetermined interval W1 in the width direction of the outer frame substrate X, and both end surfaces Xa, X of the outer frame substrate
b, and an internal angle α distributed at constant angles α1 and α2 (for example, 45°) with respect to the perpendicular C2 of the outer frame board
A V-groove 13 having a diameter of, for example, 9' is recessed only in the wooden lining 6, leaving the wooden outer panel 5 intact.

The V-groove 13 is formed by placing the front horizontal part X1 horizontally on a surface plate or table (not shown), and fixing the rear inclined part X2 in an upwardly inclined position. After that, a pair of disk cutters (not shown) whose axes are inclined at a constant angle of 45 with respect to the front horizontal portion X1 are prepared, and both the outer frame substrate X and the pair of disk cutters are linearly moved relative to each other. This is done by

After recessing the V-groove 13 in the front horizontal portion X1, the outer frame substrate Due to the relative relationship between the slope of the rear upward slope and the slope angle of the axis of the pair of disk cutters, V
The wooden outer plate 5 of the rear inclined portion
and can be formed on the wooden lining 6.

That is, if the angle of inclination of the axis of the disk cutter is constant, the interior angle β is determined by the bending angle θ. Next, as shown in FIG.
, the wooden outer panel 5 is bent inward 9' and stands up on both sides 7a,
7b and the top plate 8, and the inclined cut surfaces 14 of the rear inclined portion An inclined extension part 3 is formed at the rear of the.

In this case, the inclined cutting surface 1 has an internal angle β determined by the bending angle θ and the inclination angle of the axis of the disk cutter.
4, both end faces of the inclined top plate 9 and the upper end faces of the inclined both side walls 10a, 10b can be bonded to each other in uniform and proper abutment without any gaps. Furthermore, the lower end inner surface of the upright end walls 7a, 7b of the outer frame base portion 2 and the inclined extension portion 3
A wooden bottom plate 4 (
(see Fig. 10) and glue the both end surfaces 4a and 4b of the first
An outer frame 1 of a television receiver as shown in the figure is formed.

Note that the ventilation holes 12 are provided on both inclined side walls 10a and 10 of the inclined extension portion 3.
Although it is provided by penetrating the wooden outer panel 5 and the wooden inner lining 6 of b,
Since it is not directly related to the manufacturing method according to the present invention, a description of the step of forming the vent holes 12 will be omitted.

In the above embodiment, the interior angle α is 90 degrees, the distribution angle is 45 degrees with respect to the perpendicular C2, and the top plate 8
The upright side walls 7a and 7b are bent at 90 degrees to form the V-groove 1 with the internal angle d set to 135 degrees, for example.
The outer frame base portion 2 may be formed by providing two pairs of recesses 3 and having an inclined surface that slopes diagonally downward.

As explained above, according to the present invention, it is possible to easily form an inclined cut surface having an internal angle determined by the bending angle and the inclination angle of the axis of the disk cutter, continuously in the V-groove. Therefore, both ends of the inclined top plate and the upper end surfaces of the inclined side walls can be bonded in a state in which they are in uniform and proper contact with no gaps, and both the bending angle and the inclination angle of the axis of the disk cutter can be Even if one of the two sides is changed and set as appropriate, an inclined cut surface having an internal angle that allows the both end faces of the inclined top plate and the upper end faces of the inclined both walls to be bonded in a state where they are uniformly and properly abutted without any gaps is obtained. As a result, it is possible to manufacture an outer frame for a television receiver with an integrally formed inclined extension part made of wood, which has an excellent effect of improving elegance, solidity, acoustic effects, etc. You can get the outer frame.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of an outer frame for a television receiver according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
-B sectional view, Fig. 4 is a sectional view taken along C-C line, Fig. 5a is a front view of the wooden outer panel, Fig. 5b is a side view of the same, Fig. 6 is a perspective view of the outer frame board, Fig. 7a The figure is a front view showing a state in which a V groove and an inclined cut surface are formed on the outer frame board, and Figure 7b is D of Figure 7a.
7C is a sectional view taken along line E-E, FIGS. 8 and 9 are perspective views explaining the bending and bonding process, and FIG.
The figure is a plan view of the bottom plate, and FIG. 11 is a perspective view of a conventionally known outer frame for a television receiver. Note that the same reference numerals in the figures indicate the same or equivalent parts. DESCRIPTION OF SYMBOLS 1... Outer frame of the television receiver, 2... Outer frame base portion, 3... Inclined extension, 4...
Bottom plate, 4a, 4b...Both end faces, 5...
・Wooden lining, 6... Wooden lining, 7a, 7b...
... Standing side wall, 8 ... Top plate, 9 ...
・Slanted top plate, 9a, 9b...Both end surfaces, 10a
, 10b... Slanted both side walls, 10a1, 10b1
...Top end surface, 11...Adhesion, 13...
... V groove, 13a ... slope, 14 ...
・・Slanted cutting surface, C, ・・・・Position line, C2...
...Perpendicular line, C3... Rear extension line, W1...
...Predetermined interval, X... Outer frame board, X1...
...Front horizontal part, X2-...Rear inclined part, X
a, Xb...Both end faces, α, β...Interior angle, β,, β2...Angle, θ...Bending angle.

Claims (1)

[Claims] 1. A step of bending a rectangular wooden outer panel inward at a predetermined bending angle along a fold line parallel to its front end face and rear end face to form a front horizontal part and a rear inclined part, and A step of bonding a wooden lining to the entire inner surface of the outer frame substrate and the rear inclined portion to form an outer frame substrate; Both the outer frame board and a pair of slanted cutters are linearly moved relative to each other in a straight line, and V-grooves having internal angles that are parallel to each other and evenly distributed with respect to the perpendicular line of the outer frame board are used to cut the wooden surface. A process of leaving the board and recessing only the wooden lining of the front horizontal part, and further continuously moving the outer frame board and the pair of inclined cutters linearly relative to each other and bending the board to the rear extension line of the V groove. The above-mentioned pair of inclined cutters continuously cut an inclined cut surface that has an internal angle determined by the angle determined by the angle and the inclination angle of the inclined cutter and that is continuous with the slope of the V groove and connects it to the wooden outer plate of the rear inclined part. A process of forming a wooden inner lining, and bending the wooden outer panel of the first horizontal part inward along the above-mentioned V groove to form an outer frame base having upright side walls and a top plate, and forming the outer frame base part with the above-mentioned rear side walls. a step of bonding the inclined cut surfaces of the inclined part to form an inclined extension part at the rear of the outer frame base part, and a step of forming an inclined extension part on the rear side of the outer frame base part, and a lower inner surface of the lower end of the upright side walls of the outer frame base part and a lower end of the inclined both side walls of the inclined extension part; A method for manufacturing an outer frame for a television receiver, comprising the step of gluing both ends of a wooden bottom plate to the inner surface.