CN2360912Y

CN2360912Y - Anti-friction protector of CD

Info

Publication number: CN2360912Y
Application number: CN 99223194
Authority: CN
Inventors: 王永杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-25
Filing date: 1999-03-25
Publication date: 2000-01-26
Anticipated expiration: 2009-03-25

Abstract

The utility model discloses an anti-friction protective device for compact discs. The utility model is characterized in that the utility model is an elastic ring body component, and the cross section of the elastic ring body component is in a shape of a groove, and a notch is arranged on the side of an inner circle surface of the elastic ring body component, and the diameter of a circle on the bottom of the groove and the width of the groove are respectively matched with the diameter of an excircle of the compact disc and the size of the thickness of the compact disc, and the depth of the groove is not greater than the size of the radial width of a ring-shaped surface. The ring-shaped surface is on an outer dividing section of a non-data area on the compact disc. Compared with the prior art, the utility model has the advantages that the utility model can avoid the friction between the working surface of the compact disc and the plane surface of the object for placing the compact disc to prevent the data area of the compact disc from scratching, wearing-out, and bring convenience to take and use the compact disc, etc.

Description

A kind of CD abrasion-proof protective device

The utility model relates to a kind of protective device of data carrier, exactly is a kind of CD abrasion-proof protective device.

At present, CD obtains using very widely in many fields of society.Existing CD is all by the annular plate-like disk body be arranged on that data field on the one side workplace forms.The cylindrical place of disk body workplace also is provided with a ring surface that does not carry any data, and this ring surface constitutes the part of its non-data regions, is referred to as the outer subregion of non-data regions.Such situation in use often appears in this CD: most of users are not to put it in the optical disk cartridge after using up CD, but it is positioned on the plane of desktop or other object conveniently, that gets then uses again, this just rubs the working surface of CD and the interplanar of last fast desktop or object unavoidably, cause data of optical disk district surface tear, wearing and tearing, thus the serviceable life that influences the data of optical disk output quality, reduces CD.Yet up to the present, people also do not have a kind of feasible way to address the above problem.

The purpose of this utility model is to provide a kind of surface, data of optical disk district of can avoiding under above-mentioned service condition by the CD abrasion-proof protective device of damage by friction for people.

The purpose of this utility model is to realize like this, it is an elastic ring body member, its section configuration is a flute profile, notch is positioned at its inner headed face one side, bottom land circular diameter, groove width size are complementary with described CD outside diameter, gauge respectively, and the groove depth size is not more than the radial width size of the outer section post of described CD non-data regions at ring surface.

After the utility model is realized, it can be nested with on the cylindrical of CD, like this, when CD is placed on the object plane, to separate by convex body between its workplace or the back side and this object plane, make it not contact, therefore, placing or taking in the CD process, can make on the one hand between the object plane of data field on its workplace and placement CD to avoid friction, prevent that the data of optical disk district is subjected to scratching, wearing and tearing, guarantee the data of optical disk output quality, prolong CD serviceable life, play the effect of protection CD; On the other hand, also bring convenience for taking CD.

Below in conjunction with accompanying drawing embodiment of the present utility model is done furtherly and to illustrate carefully.

Fig. 1 is a front view of the present utility model.

Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is the utility model user mode figure.

As seen from the figure, the utility model 1 is a ring body member, and its section configuration is a flute profile, and notch is positioned at its inner headed face one side, bottom land circular diameter, groove width size are complementary, and its groove depth size is not more than the radial width size of the outer subregion 2 place ring surfaces of CD 3 non-data regions.

In the present embodiment, the material of manufacturing of the present utility model is a rubber.Certainly, the utility model also can with other elastic performance preferably soft material make, for example, plastics etc.

Described in the present embodiment bottom land circular diameter, groove width size are complementary with outside diameter, the gauge of CD respectively, be meant that bottom land circular diameter of the present utility model is equal to or slightly less than the outside diameter of CD, groove width size of the present utility model is equal to or slightly less than the gauge of CD.

In the utility model implementation process, its section flute profile wall thickness dimension is that 1-2mm is advisable, and the broad slightly or thick slightly point of this wall thickness also is fine certainly.

Claims

1, a kind of CD abrasion-proof protective device; it is characterized in that it is an elastic ring body member; its section configuration is a flute profile; notch is positioned at its inner headed face one side; bottom land circular diameter, groove width size are complementary with described CD outside diameter, gauge respectively, and the groove depth size is not more than the radial width size of the outer section post of described CD non-data regions at ring surface.