CN2816982Y - Thin CD - Google Patents

Abstract

The utility model discloses a thin CD, which comprises a clamping zone and a storage zone, wherein the thickness of the storage zone is thinner than the thickness of the clamping zone so as to cause the clamping zone to form a lug boss at one side of a CD. The upper end surface of the lug boss is smaller than the lower end surface, and a transition surface is connected with the upper end surface and the lower end surface. The CD reduces the thickness of the storage zone of the CD, the material consumption of the product and the production cost of the product, but can not affect the storage space and the use performance of the CD.

Description

The thin type CD

Technical field

The utility model relates to a kind of thin type CD.

Background technology

CD generally comprises the clamp area of center pit, inner ring and the memory block of outer ring, clamp area is provided with a circle locating ring, although CD and DVD are arranged on present market, circle and abnormity are arranged, but 1.2 millimeters of all adopting international standards of the thickness of CD, because rising steadily of the prices of raw and semifnished materials in recent years, the cost of optical disc production is skyrocketing, is the task of top priority of manufacturer so reduce material consumption, reduce production costs.

Summary of the invention

The purpose of this utility model is: a kind of thin type CD is provided, and this CD has dwindled the thickness in optical disc storage district, reduced product material consumption, reduced production cost of products, and do not influence the storage space and the usability of CD.

The technical solution of the utility model is: a kind of thin type CD, comprise clamp area and memory block, the thickness of described memory block makes clamp area form boss in a side of CD less than the thickness of clamp area, and the upper surface of boss is connected with transition face less than the lower surface between upper surface and the lower surface.

The further technical scheme of the utility model is: a kind of thin type CD, comprise clamp area and memory block, the thickness of described memory block is less than the thickness of clamp area, make clamp area form boss in a side of CD, and the upper surface of boss is less than the lower surface, be connected with transition face between upper surface and the lower surface, transition face can be the arcwall face of taper surface or projection or the arcwall face of depression.

The utility model has the advantages that:

1. the utility model reduces the memory block thickness of CD, makes the thickness of the thickness of memory block less than clamp area, so just can reduce material consumption, the reduction production cost of products of product.

2. the utility model can't influence the use of CD to the reduction of memory block thickness, more can not influence the storage space of CD.

Description of drawings

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1, Fig. 2 are the structural representation of existing CD;

Fig. 3, Fig. 4 are the structural representation of embodiment one;

Fig. 5, Fig. 6 are the structural representation of embodiment two;

Fig. 7, Fig. 8 are the structural representation of embodiment three.

Wherein: 1 clamp area; 2 memory blocks; 3 boss; 4 upper surfaces; 5 lower surfaces; 6 transition faces; 7 locating rings; 8 center pits.

Embodiment

Embodiment one: as shown in Figure 3, Figure 4, a kind of thin type CD, comprise center pit 8, clamp area 1, memory block 2, locating ring 7, the thickness of described memory block 2 is less than the thickness of clamp area 1, make clamp area 1 form boss 3 in a side of CD, and the upper surface 4 of boss 3 is connected with transition face 6 less than lower surface 5 between upper surface 4 and the lower surface 5, and transition face 6 is a taper surface.

Embodiment two: as Fig. 5, shown in Figure 6, a kind of thin type CD, comprise center pit 8, clamp area 1, memory block 2, locating ring 7, the thickness of described memory block 2 is less than the thickness of clamp area 1, make clamp area 1 form boss 3 in a side of CD, and the upper surface 4 of boss 3 is connected with transition face 6 less than lower surface 5 between upper surface 4 and the lower surface 5, and transition face 6 is the arcwall face of projection.

Embodiment three: as Fig. 7, shown in Figure 8, a kind of thin type CD, comprise center pit 8, clamp area 1, memory block 2, locating ring 7, the thickness of described memory block 2 is less than the thickness of clamp area 1, make clamp area 1 form boss 3 in a side of CD, and the upper surface 4 of boss 3 is connected with transition face 6 less than lower surface 5 between upper surface 4 and the lower surface 5, and transition face 6 is the arcwall face of depression.

The utility model reduces memory block 2 thickness of CD, makes the thickness of the thickness of memory block 2 less than clamp area 1, so just can reduce material consumption, the reduction production cost of products of product; The utility model can't influence the use of CD to the reduction of memory block 2 thickness, more can not influence the storage space of CD.

Claims (4)

1. thin type CD, comprise clamp area (1) and memory block (2), it is characterized in that: the thickness of described memory block (2) is less than the thickness of clamp area (1), make clamp area (1) form boss (3) in a side of CD, and the upper surface (4) of boss (3) is connected with transition face (6) less than lower surface (5) between upper surface (4) and lower surface (5).

2. thin type CD according to claim 1 is characterized in that: described transition face (6) is a taper surface.

3. thin type CD according to claim 1 is characterized in that: described transition face (6) is the arcwall face of projection.

4. thin type CD according to claim 1 is characterized in that: described transition face (6) is the arcwall face of depression.

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