JPS5816211Y2 - Chassis fixing device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a chassis fixing device suitable for television receivers and the like.

As a means for attaching a chassis in a cabinet of a television receiver or the like, for example, as shown in FIG.
A front support metal fitting 2 having a hook-shaped cross section is provided at the front of the main plate 1a of the cabinet 1 and is opened rearward, and a rear support metal fitting 3 in the form of a vertical wall is provided at the rear of the main plate 1a. It is known that the chassis 4 is fitted into the front support fitting 3 and the rear wall of the chassis 4 is fastened and fixed to the rear support fitting 3 with screws 5, thereby attaching the chassis 4 inside the cabinet 1. It is being

However, with such a device, it is troublesome that the screws 5 must be installed and removed each time the chassis 4 is installed or removed for maintenance, inspection, etc., and small parts such as the screws 5 are extremely difficult to remove when removed. Since powder is easily lost, there are inconveniences such as an unexpected loss of time during these operations.

Further, since the front and rear support fittings are attached to the base plate 1a using fin screws or nuts, there is a drawback that the number of parts is large and assembly is troublesome.

This idea was devised by focusing on these conventional drawbacks and the fact that a back plate is removably attached to the back of cabinets such as TV receivers. By fixing the chassis with a small number of parts, it is easy to assemble.
The present invention provides a chassis fixing device that allows the chassis to be extremely easily attached and detached during maintenance, inspection, etc.

An embodiment of this invention will be described below with reference to FIGS. 2 to 5.

・□11 in the figure is a cabinet for a TV receiver, etc.
A square hole 1 is provided in the front part of the main plate 11a of this cabinet 11.
2 and 12' are bored at a predetermined interval on the left and right, and cuts 13 and 13' are made on the left and right at the rear edge of the main plate 11a.
They are placed on the right at a predetermined interval.

Then, the long supports 14, 14 are fitted into the square holes 12, 12, respectively, and the fixture 1 is fitted into the notches 13, 13.
5.15, the flat layered chassis 16 is supported on the base plate 11a.

The above-mentioned support 14 is provided with a support piece 14bff: projecting from the upper surface of the flat plate part 14a and having a cross-section opening rearward, and a mounting piece 14bff having a cross-section opening forward opening on the lower surface of the flat plate part 14a. 14c'r protruding, as shown in Fig. 2, the mounting piece 1'4c part is inserted into the square hole 1 of the main plate 11a.
2, by sliding it forward, the mounting piece 14c fits into the opening edge of the square hole 12, and is attached to the base plate 11a.

Furthermore, the supporting pieces 14b and the mounting pieces 14c formed on the upper and lower surfaces of the flat plate part 14a of the support 14 are not formed on a straight line orthogonal to the flat plate part 14a, but are formed at different positions with respect to the front-rear direction of the chassis.

That is, if the support piece 14b is placed in contact with the end of the front surface of the chassis, the mounting piece 14c is placed on the inside of the chassis on the front side of the chassis.
In other words, it is provided closer to the back side of the chassis than the support piece 14b.

The reason for this is that when products such as television receivers are transported after being packaged or stored in stacks, the product may be accidentally dropped upside down, i.e. with the ceiling facing down. .

Measures are taken to prevent any abnormalities from occurring in the product even in the event of such careless handling accidents, and prevent the chassis from coming off the cabinet base plate, which is likely to occur in such cases.

To explain this with reference to FIGS. 6a and 6b, the support piece 14
b and the mounting piece 14c sandwich the flat plate part 14ar and are provided on a straight line orthogonal to the flat plate part, and when the chassis falls upside down, the force F that tends to separate the chassis from the base plate 11a of the cabinet
At the same time, the same force F is applied to the support 14.

At this time, the support 14 is locked to the base plate 11a, but the force acting on the chassis to separate from the support 14 does not act, so a force F' as shown in FIG. 6 is applied to the support 14.

That is, a force changing from F to P is applied to the support 14 due to the inverted fall.

This direction of change corresponds to a change in the direction in which the mounting piece 14c separates from the square hole 12, and the mounting piece 14c can be easily moved in the direction in which the space of the square hole 12 exists, using the flat plate portion 14a as a fulcrum. It is.

Furthermore, the distance between the flat plate part 1.4a and each opposing surface of the mounting piece 14cQ is as clear from FIGS. 2 and 3 as shown in FIG.
1a, this distance is set by adding the thickness of the main plate 11a and a margin.

Therefore, the attachment piece 14c is configured to be more easily detachable.

As explained above, when the support piece 14b and the attachment piece 14 (f--are arranged on the same line perpendicular to the flat plate part 14a), the support member 14 can easily be detached in case of an inverted fall.

Therefore, as a countermeasure for this problem, as shown in Figure 6, the square hole 1
so that the flat plate part 14a on 2 does not separate from the main plate 11a,
Attachment piece 1 is attached to the apart side of the flat plate part 14a (back side of the chassis).
4c (see Figures 2 to 4), the support piece 14
Even if a force of C is applied to b, a locking force opposite to F' is applied to the flat plate portion 14a by the mounting piece 14c whose fulcrum has been moved, so that the support 14 is locked in the square hole of the base plate.

Further, the fixing tool 15 has a U-shaped cross section that opens forward, and is fitted into the notch 13 from the rear to form an upper piece 15a and a lower piece 15b that connect the
The rear edge of the base plate 11a is sandwiched between the base plate 11a and the rear edge of the base plate 11a.

The fixing devices 15, 15, and 12 are formed with side pieces at one end thereof to prevent lateral movement of the chassis, respectively, so as to face each other and abut against both ends of the chassis. A plurality of slit-like through holes 17...
In addition, protrusions 19 are provided at predetermined intervals on the left and right sides of the back plate 18, and protrusions 19 are provided on the lower side of the back plate 18 at positions corresponding to the through holes 17.

The back plate 18 is removably attached to the back surface of the cabinet 11 with the protrusions 19 fitted into the through holes 1T.

Therefore, in order to install the chassis 16, first, install the chassis 16.
The front edge of the chassis 16 is fitted into the chassis support piece 14b of the support 14, and the fixture 15 is fitted into the notch 13 to hold down the rear edge of the chassis 16. After that, the back plate 18 is attached to the cabinet. 11, the back plate 18 prevents the fixture 15 from coming off, and the chassis 16
is fixed on the base plate 11a.

With this configuration, there is no need for any special screws or the like to fix the chassis 16 to the cabinet 11, so the number of parts is small and assembly is easy.Moreover, the back plate 18 can be simply removed from the cabinet 11. Since the chassis slider is removable, it is extremely convenient for maintenance, inspection, etc., since the troublesome work of installing and removing screws for chassis installation and removal is not required all at once.

Furthermore, an advantage of not fixing the support 14 and the fixture 15 to the chassis 16 by screws or the like is that the height of the cabinet can be reduced to the bottom.

This is because if the support tool 14 and the fixing tool 15 are not fixed integrally with the chassis 16, the chassis can be inserted into the cabinet with almost contact with the top of the base plate 11a, but the chassis 16
When mounting the support 14 and fixture 15 on the cabinet by fixing them, the mounting piece 14c of the support 14 and the lower end of the lower piece 15b of the fixture 15 move on the base plate 11a, so the chassis comes into contact with the base plate. The mounting piece 14c is inserted without being raised above the height of the mounting piece 14c.

At this time, since a cathode ray tube (not shown) is placed on the chassis 16, the cathode ray tube must be placed with a wide distance so that the chassis and the cathode ray tube do not come into contact with each other.

However, the present invention has the advantage that the distance between the cathode ray tube and the chassis can be increased because the support 14 and the fixture 15 are used in combination with the chassis 16 independently.

[Brief explanation of drawings]

Fig. 1 is a side sectional view showing a conventional example, Figs. 2 and 3 are side sectional views showing an embodiment of this invention, Fig. 4 is a perspective view showing a support for the same embodiment, and Fig. 5 is a side sectional view showing a conventional example. The figure is a perspective view showing the fixture part in the same embodiment, and FIG. 6 is a side sectional view for explaining how the support tool comes off in the same embodiment. 11...Cabinet, 11a...Main plate, 13...
・Notch, 14... Supporting tool, 15... Fixing tool, 16.
...Chassis, 17...Through hole, 18...Back plate, 19
···protrusion.

Claims (1)

[Scope of utility model registration request] a support that is removably provided in a through hole provided in a front part of a main plate of the cabinet and engages with the main plate to support the chassis; and one end of the support is supported by the support and is disposed on the main plate of the cabinet. a chassis; a fixture for sandwiching and supporting the base plate and chassis by removably inserting the other end of the chassis where the support is not located into a notch provided in the rear edge of the base plate of the cabinet; and a fixture for supporting the base plate and the chassis; A chassis fixing arrangement comprising: a back plate that is attached to the cabinet in contact with the support member; and the support member and the fixing member are fitted to the chassis.