JPS6240882A - Chassis fixing device - Google Patents

Abstract

PURPOSE:To firmly join a chassis and molded cabinet to each other so as to secure the strength of the chassis and, at the same time, causing the joined chassis and cabinet to work as a damper, by providing a plastic-made fixing tool with a hollow section. CONSTITUTION:A plastic-made chassis fixing tool 6 is composed of a pantograph-like hollow section 7 and projections 8 and 9 for engagement provided at the upper and lower ends of the fixing tool 6. The fixing tool 6 is flexible in the vertical direction and, when the fixing tool 6 is inserted between a chassis 3 and molded cabinet 1, with the projections 8 and 9 being put in the hole 4 of the chassis 3 and hole 5 of the cabinet 1, the chassis 3 and cabinet 1 are fixed to each other. When such a constitution is used, the cabinet 1, chassis 3, and fixing tool 6 are joined to one body and the joined body absorbs the destructive impact force when it drops onto the ground, etc. Thus destruction of this joined body is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a chassis fixing device that can be used in television receivers and the like.

BACKGROUND OF THE INVENTION In recent years, there has been a demand for compactness, simplification of parts, and reduction in φ in television receivers, and in particular, rapid progress has been made in reducing the number of parts, simplifying structures, and automating manufacturing.

Conventionally, the chassis is fixed using a chassis guide 12 integrally molded with a molded cabinet 11, as shown in FIG.
Insert and slide the chassis 13 with the electric circuit components attached to it.
A structure is adopted in which the chassis 13 is held down by the locking part of the back cover. This chassis 13 has a rigid structure including a printed board and electrical components, which are further reinforced with metal fittings and molded parts, and the chassis alone has sufficient strength.

However, when considering compactness, reduction of the number of parts, simplification of structure, rationalization, and automation, a large space is required within the cabinet, making it difficult to install, especially in the case of miniaturized television receivers. There are problems. For this reason, a frameless chassis was developed.

Problems to be Solved by the Invention: ``The frameless chassis described in 2 is a printed board'' - only those necessary for performance are placed on it, and no parts for reinforcement are used, so the conveyor is not used during the manufacturing process. It was difficult to ensure the strength of the chassis of the television receiver as a whole, as vibrations caused the chassis to shift.

Means for Solving the Problems In view of the above-mentioned problems, the present invention provides a chassis fixing means that can ensure chassis strength, and has a hollow part made of plastic with some flexibility. A fixing device having locking projections at the upper and lower ends is inserted between the molded cabinet and the chassis, and fixed by fitting the locking projections into holes provided in the molded cabinet and chassis, and The fixing device having a portion is flexible in the vertical direction, and is configured to serve as a damper and ensure the strength of the chassis by forming this fixing device.

Function Since the present invention adopts the configuration as described in -1-, the molded cabinet, the chassis, and the chassis fixture having a slightly flexible hollow part are integrated to prevent damage such as falling. Absorbs 12 forces and can prevent destruction. In addition, by using this chassis fixing tool, the chassis will not shift due to vibrations from the bell or conveyor on the production line, and automatic adjustment by one machine will be easy.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

■ is a molded cabinet, 2 (-# is a chassis guide molded integrally with the molded cabinet 1, 3 is a chassis removed from the chassis guide 2), and a hole 4 is provided in the center. 5 corresponds to the hole 4. 6 is a hole provided at the bottom of the molded cabinet 1. Reference numeral 6 denotes a plastic chassis fixture, which is composed of a pantograph-shaped hollow part 7 and its upper end and locking protrusions 8 and 9 provided at the upper end. The chassis fixing device 6 is flexible in the downward direction and is inserted between the chassis 3 and the molded cabinet 1, and has a locking protrusion 8 in the hole 4 or 5 of the chassis 3 and the molded cabinet.
Or it is fixed by fitting 9. In the drawing,
10 is an electric circuit component attached to the chassis.

When a perpendicular impact force is applied to the chassis, the fixing device, which has a pantograph-shaped hollow part and is flexible in the vertical direction, can absorb and alleviate the impact force, preventing the chassis from breaking. .

In this embodiment, the shape of the hollow portion is pantograph-like, but it may have any other shape as long as it has flexibility in the vertical direction.

Effects of the invention By using a plastic fixture with a hollow part, the chassis and molded cabinet can be firmly attached, and the chassis will not be displaced due to vibration during the manufacturing process, improving work efficiency. It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a chassis fixing device according to the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a perspective view of a conventional chassis fixing method.

Claims (1)

[Claims] The molded cabinet and chassis guide are integrally formed,
A hole is provided in the chassis attached to the chassis guide,
Form a hole in the bottom of the molded cabinet that corresponds to this hole,
A fixing device having a hollow part made of slightly flexible plastic and having locking protrusions at the upper and lower ends is connected to the locking protrusions at the upper or lower end of the fixing device and to the bottom of the chassis and cabinet. A chassis fixing device characterized in that the chassis is fixed by fitting with a provided hole.