CN2758932Y

CN2758932Y - Center fixing structure of CD in CD cassette

Info

Publication number: CN2758932Y
Application number: CN 200420103163
Authority: CN
Inventors: 朱浴龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-17
Filing date: 2004-12-17
Publication date: 2006-02-15
Anticipated expiration: 2014-12-17

Abstract

The utility model relates to a center fixing structure for optical disks in an optical disk cartridge, which is positioned on a cone frustum which protrudes upward from the body of the optical disk cartridge. The structure is a columniform positioning slot with a hollow inner cavity. The slot is divided into a positioning column without back-off positions and a positioning sheet with a back-off position by three penetrating shearing holes in the shape of a circular arc. The penetrating shearing holes in the shape of a circular arc extend to the body of the optical disk cartridge from the cylinder. The top of the positioning column is horizontal, and the side elevation of the positioning column is vertical and does not have back-off positions. The top of the positioning sheet is horizontal and lies in the same plane with the top of the positioning column. The positioning sheet is formed by dividing the top of the cylinder, the side elevation of the cylinder and the body of the optical disk cartridge by the penetrating shearing holes in the shape of a circular arc. The part which is in the body of the optical disk cartridge of the positioning sheet is provided with a technical through hole. The upper part of the side elevation of the cylinder of the positioning sheet is provided with the back-off position or a barb which corresponds with the technical through hole. The utility model has simple technology, firm structure and durability, and overcomes the problems that optical disks easily come off; the positioning sheet is easily broken; the fixing structure easily fails.

Description

The center fixation structure of CD in a kind of optical disk cartridge

Technical field

The utility model relates to the center fixation structure of CD in a kind of optical disk cartridge, is meant a kind of improvement project to the center fixation structure that is used for fixing CD in the optical disk cartridge especially.

Background technology

Now, on the market in the common optical disk cartridge center fixation structure of CD be full back-off group petal type fixed sturcture and half back-off group petal type fixed sturcture.Full back-off group petal type fixed sturcture is used for comparatively low-grade optical disk cartridge more, its basic structure is that a location nest (see figure 1) that raises up is arranged on the base plate of optical disk cartridge, this location nest has back-off petal spacer to surround circumference by a plurality of, the root and the base plate of spacer fuse, and promptly are separated from each other and do not connect bone and connect from root between each spacer.When placing CD, because the diameter of cd center hole is slightly less than the diameter of location nest, the crowded downwards back-off petal spacer of having forced so must exert oneself, the inside warpage of back-off petal spacer is arranged, back-off position outer circumference diameter dimension is less than the center-hole diameter of CD, thereby the spacer group in the nest of location all enters the center pit of CD and after resilience resets CD fixed; When taking out CD, then need firmly to squeeze downwards and force or upwards lift CD and squeeze and forced back-off petal spacer with finger, behind the inside warpage of spacer, CD is slided bullet naturally and is gone out.The shortcoming of this structure is: is subjected to injection mold workpiece demoulding angle limits, has the back-off position reverse slope angle of back-off petal spacer less, can not be securely at vertical direction left-hand thread CD, and CD gets loose easily, and play in optical disk cartridge scratches optical disc information layer.In addition, not so good and have only unidirectional support force because of plastic material toughness that back-off petal spacer is arranged, thus fracture easily, make fixed sturcture lose function, reduced the serviceable life of fixed sturcture.China's ZL02201518.3 patent " optical disk cartridge " design proposal of showing of giving then is more original a kind of center fixation structure.

In view of the defective of full back-off group petal type fixed sturcture is too obvious, develops and half back-off group petal type fixed sturcture (see figure 2).Half back-off group petal type fixed sturcture is organized a plurality of staggered circumferential registration nests that surround at interval of back-off petal spacer that have by one group of a plurality of no back-off petal spacer and another, and no back-off petal spacer fuses by connecting the bone bar.When taking out CD, CD upwards squeezed to force or oppress with finger back-off petal spacer, and the inside warpage of back-off petal spacer is arranged, and back-off position outer circumference diameter dimension is less than the center-hole diameter size of CD, thereby CD is taken out; Mechanism is opposite when putting into.Its improvement is: the no back-off petal spacer group that is fused by connection bone bar has two-way support force, is not easy to fracture, and has strengthened the intensity of no back-off petal spacer group; But the defective that has back-off petal spacer caused by injection mold workpiece demoulding angle limits still exists, and the problem that CD gets loose easily and spacer fractures easily is not resolved.

The utility model content

The problem that the utility model need solve be by which kind of approach provide that a kind of technology is simple, the center fixation structure of CD in the sound construction, long-lived optical disk cartridge.

Designed the center fixation structure of CD in a kind of optical disk cartridge according to the problems referred to above, comprise optical disk cartridge, the middle part of sandwich plate is provided with the cylindrical location nest of a projection in box plate or lid plate or box, this location nest comprises the smooth reference column of outer wall, the spacer of back-off position or barb is arranged, reference column is distributed on the circumference with the spacer space and all is connected with sandwich plate in box plate or lid plate or the box, reference column is linked into an integrated entity by the radial rib that is intersected in the center of circle, forms by the outside radioactivity bifurcated in the center of circle; Spacer then is sandwiched in the middle of two radial rib.Add man-hour, the general radial rib radioactivity bifurcated number that adopts is 2 to 6 or a plurality of, the plate of sandwich plate junction is provided with the technology via hole in spacer that is complementary and box plate or lid plate or the box, on the right cylinder side elevation top of spacer, back-off position or the barb corresponding with the technology via hole is arranged.And likeness in form from cylinder, cut from spacer cut the hole by circular-arc perforation and separate with reference column so that spacer is successfully realized the pitching action when laying or take out discs.In order to realize the pitching action of spacer better, circular-arc perforation is cut the hole and is enclosed in the arc top for approximate semi-circumference shape and with spacer.

The hole is cut in perforation of the present utility model and the technology via hole forms on a simple circle cylinder, and technology is simple; The branch type reference column fuses, sound construction; The joggling part bit stealing area of spacer has two places to support force, not frangibility greatly and in the both sides of technology via hole; The side elevation of cylindrical reference column is fixing CD in the horizontal direction, barb on the spacer or back-off position are at the fixing CD of vertical direction, the barb or the back-off parallactic angle degree of technology via hole top can be done greatlyyer, be subjected to mould depanning angle influence little, bigger barb or back-off position make CD use and store status under be difficult for getting loose.Therefore, the utility model has solved the problem that CD gets loose easily and spacer fractures easily, fixed sturcture easily lost efficacy.

Description of drawings

Accompanying drawing 1 is the perspective view of existing full back-off group petal type fixed sturcture; Accompanying drawing 2 is the perspective view of existing half back-off group petal type fixed sturcture; Accompanying drawing 3 is the center fixation structural upright structural representation of CD in the utility model optical disk cartridge; Accompanying drawing 4 is the schematic top plan view of accompanying drawing 3; Accompanying drawing 5 is the A-A diagrammatic cross-section of accompanying drawing 4; Accompanying drawing 6 is the elevational schematic view of accompanying drawing 3; Accompanying drawing 7 is deposited diagrammatic cross-section under the compact disc states for the utility model; Duty diagrammatic cross-section when accompanying drawing 8 takes out CD for the utility model.

Embodiment

Fig. 1,2 gives and has shown the prior art constructions form, after now being specified in according to Fig. 3～8 pair the utility model.The preferred forms of choosing among the figure is continuous three forked types or chevron shaped reference column, and this structure bifurcated has three-dimensional to support the force and distributes with 120 degree angles, scientifically external force is disperseed, and is strong reliable; Certainly also can select other bifurcation structure preferably as the case may be.

Omit optical disk cartridge box body among Fig. 3 and other each figure, only provided the protruding round platform of settling CD.The right cylinder that one bottom or inner chamber hollow are arranged on this round platform, it is connected to cut hole 3 or to cut groove by the arc of three semicircular and is divided into three forked types and does not have barb or do not have back-off position reference column 1 and three spacers 2, and reference column links into an integrated entity by radial rib 11.As shown, article three, the arc perforation is cut the hole and is extended to optical disk cartridge box body from right cylinder always, the reference column top, horizontal of no back-off position or barb, the top of spacer is level also, and the top of spacer and the top of reference column be in same plane, the spacer likeness in form by arc connect cut the hole from cylindrical top, cylindrical side elevation and optical disk cartridge box body be partitioned into and form.The root of spacer promptly is provided with technology via hole 4 with box body junction, and on the right cylinder side elevation top of spacer, design has back-off position 5 or the barb corresponding with the technology via hole.The effect of technology via hole is to be convenient to mould loose core when injection mo(u)lding, and the area that is connected that can be easily forms back-off position or barb in the spacer upper end and reduce spacer and box body is a strength of joint, makes easier bending when operating.Shape, structure, position and the mutual relationship thereof of this fixed sturcture each several part showed in Fig. 3～6 from all angles.

Fig. 7 has showed the storage configuration of CD 6 in the CD fixed sturcture.Reference column side facade is fixing CD in the horizontal direction, and back-off position on the spacer or barb are at vertical direction fixing CD downwards, and the box body part on the spacer upwards plays spacing fixation to CD in vertical direction.

Fig. 8 has showed the taking-up state of CD in the CD fixed sturcture.When taking out CD, CD upwards squeezed force spacer, the inside warpage of spacer or topple over then, the outer circumference diameter dimension of spacer be less than the center-hole diameter size of CD, thereby CD is taken out.

The utility model is as the center fixation structure of CD in the optical disk cartridge, the form of bifurcation of its reference column and quantity, connect the quantity of cutting hole, technology via hole and back-off position or barb and can be 2～6 to multi-disc with have back-off position or barb spacer, the arc of reference column coupling, optimum implementation is three.This fixed sturcture can use at the bottom of optical disk cartridge box body and the box simultaneously, thereby promptly fixes two CDs using at the bottom of the box and on the box face, and uses on the interlayer that can install additional in box, holds more CD.Single interlayer uses the center fixation structure of this CD also can constitute the papery optical disk cartridge with paper wrapper.

Above-mentioned is the utility model most preferred embodiment, changes as the similar structures that uses the utility model instructions and accompanying drawing content to be done, and all is included in the protection domain of the present utility model.

Claims

1, the center fixation structure of CD in a kind of optical disk cartridge, comprise optical disk cartridge, the middle part of sandwich plate is provided with the round platform of a projection in box plate or lid plate or box, be provided with a cylindrical location nest at the round platform middle part, this location nest comprises the smooth reference column of outer wall (1), the spacer (2) of back-off position or barb is arranged, reference column is distributed on the circumference with the spacer space and all is connected with sandwich plate in box plate or lid plate or the box, it is characterized in that reference column is linked into an integrated entity by the radial rib that is intersected in the center of circle (11), form by the outside radioactivity bifurcated in the center of circle; Spacer then is sandwiched in the middle of two radial rib (11).

2, the center fixation structure of CD in the optical disk cartridge according to claim 1 is characterized in that described radial rib radioactivity bifurcated number is 2 to 6 or a plurality of.

3, the center fixation structure of CD in the optical disk cartridge according to claim 2, it is characterized in that being similar to from cylinder, cut from spacer cut hole (3) by circular-arc perforation and separate with reference column.

4, the center fixation structure of CD in the optical disk cartridge according to claim 3 is characterized in that the part of sandwich plate junction in described spacer and box plate or lid plate or the box is provided with technology via hole (4).

5, the center fixation structure of CD in the optical disk cartridge according to claim 3 is characterized in that the right cylinder side elevation top at spacer, and back-off position or the barb corresponding with the technology via hole are arranged.