JPH0241886Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a lid device such as a lid for mounting a cassette tape recorder.

"Conventional technology" Conventionally, in the case of lids for mounting cassettes, etc., a technology was used in which grease (adhesive material) was applied to a gear mechanism connected to the rotational fulcrum shaft of the lid, and the opening operation of the lid was slowed down and eased. It was hot.

"Problems to be Solved by the Invention" In the prior art, the adhesive resistance of the grease is applied indirectly to the lid via a gear mechanism, which complicates the support structure of the lid. There was a problem of increasing the closing operation force.

``Means for Solving the Problems'' However, in the present invention, a groove filled with an adhesive material is formed in a bearing member that supports the rotation fulcrum of the lid on an electric device, and a resistance protrusion that is fitted into the groove is attached to the lid. It is installed at the pivot point of the

``Operation'' Therefore, the adhesive resistance force of the adhesive material can be applied directly to the rotational fulcrum of the lid without the conventional gear mechanism, and the support structure of the lid can be simplified to appropriately reduce the deceleration of the opening operation. In addition, the closing operation force can be reduced compared to the conventional method, and manufacturing costs can be reduced and functionality improved at the same time.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings. Fig. 1 is an enlarged sectional explanatory view of the main part, and Fig. 2 is an explanatory perspective view of the whole. In the figure, 1 is a cassette mounting lid of a cassette tape recorder in which cassette guide arms 2, 2 are provided in parallel on the left and right sides of the back side. . The guide arms 2, 2 extend downward from the lid 1, and a rotation fulcrum portion 4 of the lid 1 with a rotation fulcrum shaft 3 protruding from the outer surface of the lower end is formed at the bottom of each of the guide arms 2, 2, A bearing member 6 is interposed on either one of the fulcrum shafts 3, 3 which are rotatably supported on the main body chassis 5 of the cassette tape recorder, and as shown in FIGS. 6 is attached to the main body chassis 5 via a rotation regulating bearing section 7 having a square outer shape, and the fulcrum shaft 3 is rotatably supported on the inner periphery of the rotation regulating bearing section 7 via a retaining screw 8. Further, a spring 9 for opening the lid 1 is provided, and the middle part of the spring 8 is wound around the lower cylindrical rib 10 of the main body chassis 5. One end of the spring 8 is attached to the upper cylindrical rib 11 of the main body chassis 5, and the other end is attached to the rotation fulcrum. The lid 1 is supported by a hook 12 formed on the end surface of the guide arm 2 of No. 4, and the spring 8 force is applied to the lid 1 in the opening direction.

The bearing member 6 is brought into close contact with the rotation fulcrum portion 4.
Groove 1 whose surface is filled with grease 13, which is an adhesive material
4 and 15, the arc-shaped groove 15 is formed on the upper side of the groove 13 whose lower part is formed in a semicircular shape with a partition wall 16 interposed therebetween, and the rotation regulating bearing portion 7
and a cylindrical bearing portion 7a that pivotally supports the fulcrum shaft 3.
A resistance cylindrical shaft 17, which is a resistance protrusion, is formed on the outer circumference of the fulcrum shaft 3 on the outer surface of the rotation fulcrum part 4, and a resistance pin 18, which is a resistance protrusion, is formed above the cylindrical shaft 17. The resistance cylinder shaft 17 is rotatably fitted into the groove 14 on the outer periphery of the bearing part 7a in a cylindrical shape, and the resistance pin 18 is movably fitted into the other groove 15.
3, the resistance cylinder shaft 17, and the pin 18, the pivot point 4 directly applies resistance to the opening operation of the lid 1 by the spring 8.

Note that the tip of the bearing portion 7a is formed flush with the surface of the bearing member 6, and the shafts 14 and 15 are sealed with the rotation fulcrum portion 4, while the partition wall 16 is formed slightly lower than the surface of the bearing member 6. and upper and lower grooves 14, 15
An air vent groove 19 is formed on the surface of the bearing member 6 to communicate the upper groove 15 to the outside, and to prevent air from being trapped when the bearing member 6 and the rotation fulcrum part 4 are in close contact with each other. ing.

This embodiment is constructed as described above, and when the lid 1 is opened by the spring 8, the resistance cylinder shaft 17 rotates around the fulcrum shaft 3 in the grease 13 in the groove 14, and the resistance cylinder shaft 17 rotates in the grease 13 in the groove 14. The pin 18 is attached to the grease 1 in the groove 15.
The opening operation of the lid 1 is slowed down by the adhesive resistance of the grease 12, which moves through the opening of the lid 1 and acts directly on the rotation fulcrum 4 through the resistance cylinder shaft 17 and the resistance pin 18.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides an electric appliance with a lid 1 that can be opened and closed.
a groove 14 filled with grease 13, which is an adhesive material, in a bearing member 6 that supports the rotational fulcrum part 4 of the electrical equipment;
15 and the resistance protrusions 17 and 18 fitted into the grooves 14 and 15 are connected to the rotation fulcrum part 4 of the lid 1.
This allows the adhesive resistance force of the grease 13 to be applied directly to the pivot point 4 of the lid 1 without the need for a conventional gear mechanism, simplifying the support structure of the lid 1 and improving the opening operation. The deceleration can be appropriately alleviated, and the closing operation force can also be reduced compared to the conventional method, which has a remarkable effect of reducing manufacturing costs and improving functionality at the same time.

[Brief explanation of the drawing]

FIG. 1 is an enlarged cross-sectional explanatory view of essential parts, FIG. 2 is an overall perspective view, FIG. 3 is an assembly explanatory view, and FIG. 4 is an assembly perspective view. DESCRIPTION OF SYMBOLS 1... Lid, 4... Rotation fulcrum part, 6... Bearing member, 13... Grease (adhesive material), 14, 15...
Groove, 17...Resistance cylinder shaft (resistance protrusion), 18...Resistance pin (resistance protrusion).

Claims (1)

[Scope of utility model registration request] In an electrical appliance equipped with a lid that can be opened and closed, a groove filled with an adhesive material is formed in a bearing member that supports the rotation fulcrum of the lid on the electric appliance, and a resistance protrusion that is fitted into the groove is arranged to prevent rotation of the lid. A lid device for an electrical appliance, characterized in that it is provided at a fulcrum.