JPH0129890Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a holding device for a cathode ray tube, which stabilizes the holding of the cathode ray tube to the case and makes it possible to reduce the mounting space and the mounting outer diameter.

2. Description of the Related Art Conventionally, a cathode ray tube body of a television receiver is provided with mounting ears 3 on a panel portion 2 of a cathode ray tube body 1, as shown in FIG. 1, in order to attach the cathode ray tube body to a case such as a cabinet. The mounting ears 3 are provided so as to protrude integrally with a metal frame 3a fitted around the panel portion 2, or are provided by being welded to the metal frame 3a. The cathode ray tube main body 1 is fixedly held in the case by inserting bolts or the like into through holes 4 formed in each of the mounting ears 3.

In the cathode ray tube main body 1 having the above-mentioned mounting ears 3 or the cathode ray tube main body 1 having the above-mentioned mounting ears 3 attached thereto, the above-mentioned mounting ears 3 are fitted into the panel portion 2 of the maximum diameter portion of the cathode ray tube main body 1, and the metal frame 3a is used. Since the cathode ray tube body 1 is provided in a protruding manner, the outer diameter of the cathode ray tube body 1 is increased, and the space occupied within the case of the cathode ray tube body 1 is increased, resulting in poor space utilization within the case. As a result, this has become a major obstacle in achieving miniaturization of television receivers.

Further, the attachment ears 3 hold the cathode ray tube body 1 only near the panel portion 2;
The funnel portion 5 and the neck portion 6 are not provided with any supporting means. For this reason, the cathode ray tube body 1
There is a problem that the overall holding is difficult to stabilize.

Therefore, the present invention aims to solve the above-mentioned problems of conventional cathode ray tubes, achieve stable retention of the cathode ray tube body in the case, save space for installation inside the case, and reduce the mounting outer diameter. This was proposed with the aim of providing a cathode ray tube that can keep the amount of noise small.

In order to achieve such an object, the present invention uses a cathode ray tube having a funnel round pad formed as an annular protrusion having a surface parallel to the tube axis near the boundary between the funnel cone and the neck. , an annular body that is attached to the funnel round pad by sandwiching a surface parallel to the pipe axis of the funnel round pad, and a locking member that extends integrally from the annular body along the outer shape of the funnel cone portion. It is configured to be held within the case by a holding member consisting of a stop plate.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 2, the cathode ray tube constituting the present invention has a funnel located near the boundary between the funnel cone portion 8 and the neck portion 6 of the cathode ray tube body 7.
Round pads 9 are integrally formed in a step-like manner. The funnel round pad 9 has an annular projection having a ring-shaped horizontal surface portion 9a parallel to the tube axis of the cathode ray tube body 7 and a ring-shaped vertical surface portion 9b perpendicular to the tube axis of the cathode ray tube body 7. It is formed.

Further, a holding member 10 is attached to the cathode ray tube body 7 for holding the cathode ray tube body 7 to a case such as a cabinet. This holding member 10 is integrally formed of elastic synthetic resin, and as shown in FIGS. 3 and 4, it consists of a pair of lower holding member halves 11 and an upper holding member half. It has an annular body 30 consisting of a member half 12, and these lower holding member half 11 and upper holding member half 1 that constitute this annular body 30.
2 are integrally connected via a flexible hinge joint 13 so as to be openable and closable. On the inner peripheral sides of the lower holding member half 11 and the upper holding member half 12, semicircular support surfaces are formed with a curvature that matches the horizontal surface portion 9a of the funnel round pad 9. 11a and 12a are formed. Furthermore, the lower holding member half 1
1 and the other end sides of the upper holding member half 12 that are opposite to the flexible hinge joint 13 side are in a relationship in which they face each other so as to be able to move toward and away from each other, and mounting pieces 11b and 12b are horizontally attached to these other end sides, respectively. It is installed protrudingly. Each of these mounting pieces 11b and 12
In b, a small hole 14 and a large hole 15 into which a fixing screw 16 is inserted and screwed are bored so as to communicate with each other. Furthermore, locking pawls 17 and 18 and a locking piece 19 are provided from the center portion of one end surface side of the lower holding member half body 11 and the upper holding member half body 12 to the tip side.
Locking plates 21 and 22, each formed with a numeral 20, extend integrally. These locking plates 21 and 22 are
When this holding member 10 is held by the funnel round pad 9, the funnel cone portion 8
It is formed so as to extend along the outer peripheral surface of.

The holding member 10 configured as described above is
Lower holding member half 11 and upper holding member half 12
are opened and expanded around the flexible hinge joint part 13, and each support surface part 11a and 12a corresponds to the horizontal surface part 9a of the funnel round pad 9, and the lower holding member half 11 and the upper holding member half 12 are By closing the above funnel
It is supported by the cathode ray tube body 10 by holding the round pads 9. The holding member 10 is then inserted into the lower holding member half 1 by inserting the screw 16 through the large hole 15 formed in the upper holding member half 12.
It is fixedly attached to the funnel round pad 9 by forcibly screwing it into the hole 14 bored in the funnel round pad 9. At this time, the holding member 10
The locking plates 21 and 22 of the funnel cone portion 8
It extends along the outer peripheral surface of.

As mentioned above, the holding member 10 is attached to the cathode ray tube body 7.
The cathode ray tube constructed by attaching the above-mentioned cathode ray tube body 7 is arranged such that the panel portion 2 of the cathode ray tube main body 7 faces the inner surface of a bezel 24 attached to the opening of the case 23 by screws or the like. And the above basil 24
The locking claw 26 of the locking piece 25 connected to the locking hole 27 formed in the locking plates 21 and 22 of the holding member 10
Insert into. Then, the locking pawl 26 engages with the locking pawl 18 of the locking plates 21, 22 as shown in FIG. 5, and the locking plates 21, 22 and the locking pieces 25 are interconnected. , the cathode ray tube main body 7 is stably held within the case 23 as shown in FIGS. 6 and 7.

Incidentally, as shown in FIGS. 2 and 6, the funnel round pad 9 is attached to the panel section 2 further forward from the boundary between the funnel cone section 8 and the neck section 6 where the deflection yoke (not shown) is arranged. Since it is formed in the vicinity of the boundary part closer to the side, even if the annular body 30 of the holding member 10 is attached to fit into the funnel round pad 9, it will obstruct the attachment of the deflection yoke. This does not affect the function of this deflection yoke.

As described above, the present invention provides a funnel round pad that is held in the vicinity of the boundary between the funnel cone portion and the neck portion of the cathode ray tube body to stabilize the holding of the cathode ray tube body to the case, and that conforms to the outer shape of the funnel cone. Since the cathode ray tube main body can be held against the panel portion of the case by the holding member along the tube, stable holding can be achieved.

Furthermore, unlike conventional cathode ray tubes, there are no mounting ears protruding from the panel, so there is no need to increase the outside diameter of the cathode ray tube itself, and the case in which it is housed can be prevented from increasing in size, allowing it to be configured as a television receiver. It is possible to achieve miniaturization when

In particular, in the above-described embodiment, the funnel round pad is formed in a ring shape near the boundary between the funnel cone and the neck, so it is rotationally symmetrical to the funnel, and when forming the glass of the cathode ray tube body. It is possible to easily achieve high accuracy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional cathode ray tube. FIG. 2 is a perspective view of the cathode ray tube body according to the present invention, FIG. 3 is a front view of a holding member disposed on the cathode ray tube body, FIG. 4 is a side view thereof, and FIG. FIG. 6 is a partial cross-sectional view showing how the locking plate of the holding member is engaged with the locking piece of the bezzle; FIG. 6 is a partially cutaway side view showing how the cathode ray tube is attached to the case; and FIG. 7 is a rear view thereof. It is a diagram. 7... Braun tube body, 5... Funnel section,
6...Netsuku Club, 8...Funnel Corn Club,
9...funnel round padded, 10...
Holding member, 11... Lower holding member half, 12...
Upper holding member half.

Claims (1)

[Claims for Utility Model Registration] A cathode ray tube having a funnel round pad formed as an annular protrusion having a surface parallel to the tube axis near the boundary between the funnel cone portion and the neck portion, - An annular body that is supported by this funnel round pad while holding a surface parallel to the tube axis of the pad, and a locking plate that extends integrally from this annular body along the outer shape of the funnel cone portion. 1. A holding device for a cathode ray tube, characterized in that it is held in a case by a holding member.