US20080197032A1 - Protective cartridge case having zero-tension latch - Google Patents
Protective cartridge case having zero-tension latch Download PDFInfo
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- US20080197032A1 US20080197032A1 US11/709,445 US70944507A US2008197032A1 US 20080197032 A1 US20080197032 A1 US 20080197032A1 US 70944507 A US70944507 A US 70944507A US 2008197032 A1 US2008197032 A1 US 2008197032A1
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- United States
- Prior art keywords
- cartridge case
- latch member
- cartridge
- bottom portion
- protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/16—Non-removable lids or covers hinged for upward or downward movement
- B65D43/162—Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/10—Details of hinged closures
- B65D2251/1016—Means for locking the closure in closed position
- B65D2251/1058—Latching mechanisms
Definitions
- the invention relates generally to protective cases for storage media devices, and more specifically to protective cases for containing and protecting storage tape cartridges having one or more reels.
- Magnetic tape cartridges have been used to conveniently and efficiently store and handle magnetic recording media for tape drives.
- One type of tape cartridge consists of a substantially rectangular exterior cartridge housing and a single reel containing a magnetic tape positioned within the housing.
- the cartridge housing includes an upper housing section and a lower housing section which substantially enclose the magnetic tape, which includes a cartridge leader.
- the cartridge leader becomes exposed through an opening in the cartridge housing during insertion of the cartridge into the tape drive.
- the tape drive is then able to engage and retrieve the tape from the cartridge for recording and/or playback.
- Such cartridges are generally contained in a cartridge case or container when they are transported or stored outside of a drive or storage library.
- the cartridge case is typically formed of a rigid plastic material, such as polypropylene or the like, through a suitable injection molding process.
- the cartridge case generally includes a container body and a lid which is connected to one edge of the container body by way of a thin hinge portion such that the lid may rotate to open and close the container body. The lid generally snaps into a closed position, thereby protecting the housed cartridge from dust and other contamination.
- a conventional cartridge case is described, for example, in U.S. Pat. No. 6,443,304, entitled “Cassette Container.”
- the cartridge case therein generally includes a container body having a lid member connected to the container body by way of a hinge to open and close the container body for housing a cassette or cartridge therein.
- Conventional cartridge cases such as that disclosed by U.S. Pat. No. 6,443,304, however, provide little protection to a cartridge therein due to a shock event, such as being dropped (which may cause damage to the cartridge or media therein resulting in lost data). Accordingly, a cartridge case providing greater protection due to shock events is desired.
- a protective cartridge case for housing a storage cartridge having at least one reel.
- the protective cartridge case includes a housing for enclosing the storage cartridge therein, the housing including a top portion and a bottom portion having opposing major inner surfaces in a closed position.
- the protective case further including a first absorbing member disposed adjacent the inner surface of the top portion and a second absorbing member disposed adjacent the inner surface of the bottom portion. In a closed position the first and second absorbing members are disposed adjacent major surfaces of a storage cartridge disposed therein for absorbing shock and providing cushioning to the major surfaces of the storage cartridge in response to a shock event.
- the protective cartridge case may include additional absorbing members disposed adjacent minor side surfaces of the housing.
- the additional absorbing members are further disposed adjacent minor side surfaces of the storage cartridge and reduce forces and provide cushioning to the minor side surfaces of the storage cartridge in response to a shock event.
- the protective cartridge case may thereby provide protection to the storage cartridge along the axis of the reel as well as other directions (e.g., along the minor side surfaces).
- the absorbing members may include foam, rubber, spring members, living springs, or other elastic structures and/or materials.
- absorbing members e.g., foam
- absorbing members are attached to the housing via adhesive or a friction fit.
- absorbing members e.g., living spring
- housing portions are comolded or integrally formed with housing portions.
- a protective cartridge case for housing a storage cartridge includes a housing for enclosing a tape cartridge having a reel disposed therein, the housing including a top portion and a bottom portion having opposing major inner surfaces in a closed position and living springs disposed on the inner surface of the top or bottom portion, the living springs for engaging a portion of the storage cartridge and flexing to provide protection to the storage cartridge (e.g., in response to a shock event). Additional living springs may be included with the top and bottom portion with the major inner surfaces or minor side surfaces thereof to provide protection to a storage cartridge therein.
- a protective cartridge case includes a housing having a top and bottom portion for enclosing a storage cartridge, the top and bottom portions having major surfaces that oppose each other along a vertical direction, and a latch member for selectively securing the top portion and bottom portion in a closed position, wherein the latch member secures the top and bottom portion in a closed position with substantially zero tension on the latch member in the horizontal direction.
- FIG. 1 illustrates a perspective view of an exemplary protective cartridge case having absorbing members disposed therein;
- FIG. 2 illustrates a cross-sectional view of an exemplary protective cartridge case with a storage cartridge disposed therein in a closed position
- FIG. 3A illustrates exemplary absorbing members for a protective cartridge case
- FIG. 3B illustrates an exemplary shell portion of a protective cartridge case having a body portion and a lid portion
- FIGS. 3C and 3D illustrate exemplary absorbing members for use with a protective cartridge case
- FIG. 4 illustrates another exemplary protective cartridge case having absorbing members disposed therein
- FIG. 5 illustrates another exemplary protective cartridge case having absorbing members disposed therein
- FIG. 6 illustrates an exemplary zero tension latch for a protective cartridge case.
- a protective cartridge case for housing a storage cartridge having at least one reel.
- the protective cartridge case includes a housing for enclosing the storage cartridge therein, the housing including a top portion and a bottom portion.
- the protective case further includes a first absorbing member disposed adjacent a major surface of the top portion and a second absorbing member disposed adjacent a major surface of the bottom portion.
- the absorbing members provide protection to a storage cartridge (to both the media and the cartridge housing/mechanics) within the housing during a shock event, such as being dropped.
- Absorbing members may be disposed to protect the storage cartridge along the axis of the reel and protect the storage cartridge housing on all axes.
- FIG. 1 illustrates a perspective view of an exemplary protective cartridge case 10 having absorbing members disposed therein.
- FIGS. 2 , 3 A, and 3 B which is preferably referenced in combination with FIG. 1 , illustrates a cross-sectional view and exploded views respectively of the protective cartridge case 10 with a storage cartridge 60 disposed therein.
- Protective cartridge case 10 generally includes a bottom portion 12 and a top portion 14 connected through a flexible portion 31 such that they rotate relative to each other for selectively enclosing a cartridge 60 therein.
- the bottom portion 12 and top portion 14 may be secured in a closed position by a latch member 40 , in this instance included with top portion 14 and adapted for engaging with a catch feature 44 of bottom portion 12 .
- Bottom portion 12 and top portion 14 further include major (as opposed to minor or side surfaces) inner surfaces 13 and 15 respectively.
- inner surfaces 13 and 15 oppose each other along a vertical direction 90 , where direction 90 is associated with an axis of rotation of a reel of cartridge 60 when disposed therebetween.
- Inner surfaces 13 and 15 are generally substantially perpendicular to direction 90 and substantially parallel to each other.
- Disposed adjacent inner surface 15 of top portion 14 and inner surface 13 of bottom portion 12 are absorbing members 20 and 22 .
- Absorbing members 20 and 22 are disposed adjacent top and bottom major surfaces 62 of cartridge 60 (see FIG. 2 ) in a closed position for protecting cartridge 60 (e.g., absorbing energy by compressing) in response to a shock event that results in forces along direction 90 .
- Absorbing members 20 and 22 need not physically contact cartridge 60 when in a closed position.
- the spacing between opposing surfaces of absorbing members 20 and 22 along direction 90 may be slightly larger than the height of cartridge 60 (e.g., the height of cartridge 60 along the length of minor side surface 64 of cartridge 60 ).
- the spacing between opposing surfaces of absorbing members 20 and 22 in a closed position may be equal to or slightly less than the height of cartridge 60 such that one or both of the absorbing members compress slightly in a closed position.
- a feature or layer may be disposed between cartridge 60 and one or both of absorbing members 20 and 22 such that the major surfaces 62 of cartridge 60 are not in physical contact with absorbing members 20 and 22 during a shock event or in a closed position.
- Protective cartridge case 10 further includes absorbing members 24 disposed with bottom portion 12 and adjacent opposing minor side surfaces 12 s thereof.
- Absorbing members 24 are disposed, at least primarily, for absorbing energy in response to a shock event that results in forces along a direction perpendicular to direction 90 .
- each absorbing member 24 includes a central portion for opposing the other absorbing member 24 and adjacent to minor side surfaces 64 of cartridge 60 disposed therein.
- Each absorbing member 24 further includes end portions 26 disposed adjacent the opposing minor side surfaces 64 of cartridge 60 not adjacent the central portion of member 24 to provide protection for the remaining sides surfaces 64 of cartridge 60 .
- the combination of absorbing members 20 , 22 , and 24 are configured to cushion cartridge 60 and absorb energy from a shock event (e.g., from dropping cartridge case 10 containing cartridge 60 ) on all sides of cartridge 60 (e.g., the opposing major surfaces- 62 and the four minor side surfaces 64 ).
- a shock event e.g., from dropping cartridge case 10 containing cartridge 60
- all sides of cartridge 60 e.g., the opposing major surfaces- 62 and the four minor side surfaces 64 .
- the absorbing members may vary in shape or configuration from that shown.
- absorbing members 24 c shown in FIG. 3C may be disposed around minor inner surfaces 12 s of bottom portion 12 to provide support to minor surfaces 62 of cartridge 60 .
- absorbing members 24 d shown in FIG. 3D may be disposed at the corners of bottom portion 12 to support the minor surfaces 62 of cartridge 60 .
- absorbing members e.g., 24 , 24 c, and/or 24 d
- top portion 14 and disposed for supporting side surfaces 62 of cartridge 60 may be disposed for supporting side surfaces 62 of cartridge 60 .
- absorbing members 20 and 22 are substantially rectangular shaped (see, e.g., FIG. 3A for a more detailed view); however, other shapes or configurations are possible and contemplated. For example, multiple absorbing members may be disposed with each of inner surfaces 13 and 15 for opposing major surfaces 64 of cartridge 60 . Further, in other examples absorbing members 20 and 22 may have difference shapes, e.g., circular, oval, and so on.
- Absorbing members used with cartridge case 10 may include various absorbing materials such as closed or open cell foam (e.g., manufactured by Santoprene), rubber, overmolded features (e.g., as detailed with respect to FIG. 5 below), spring members, leaf springs, living springs (e.g., as detailed with respect to FIG. 4 below), or other suitable materials for absorbing shock and protecting a cartridge.
- the absorbing members 20 , 22 , and 24 include foam having a thickness of between 0.1 and 1.0 inches, and having a density between 1.7 and 2.2 lbs/ft 3 . Of course, other thicknesses and densities are possible and contemplated.
- the material, thickness, and spring constant of absorbing members 20 and 22 may vary from that of absorbing members 24 .
- the thickness, density, spring constant value, shape, etc. of absorbing members 24 may vary from that of absorbing members 20 and 22 .
- bottom portion 12 , top portion 14 , flexible portion 31 , and latch member 40 are integrally formed of any suitable material such as polypropylene (with an impact modifier), polycarbonate, or the like, through well-known injection molding processes. Additionally, various other features such as column 18 (or living springs described below with respect to FIG. 4 ) may be comolded therewith. In other examples, however, various portions may be made by other processes or made separately and coupled together.
- bottom portion 12 and top portion 14 may include features, e.g., ridges or tabs for engaging absorbing members in a snap fit, friction fit or otherwise.
- absorbing members 20 and 22 may be affixed to inner surfaces 13 and 15 via an adhesive.
- bottom portion includes features 18 , e.g., columns or pins, for mating with absorbing member 24 to aid in securing absorbing members 24 in place, particularly when a cartridge 60 is not present.
- FIG. 4 illustrates another exemplary protective cartridge case 410 having absorbing members disposed therein.
- Protective cartridge case 410 is similar to that of protective cartridge case 10 , however, in this instance multiple living springs 420 a - 420 e are disposed with bottom portion 412 adjacent portions of cartridge 60 disposed therein.
- living springs 420 a - 420 e are disposed adjacent corners and minor side surfaces 62 of cartridge 60 disposed therein. Although not shown for each corner of cartridge 60 , two living springs are positioned with bottom portion 410 at each corner of cartridge 60 . Additionally or alternatively, living springs may be positioned with top portion 414 in a similar or complimentary fashion as living springs 420 a - d shown with bottom portion 412 .
- Cartridge 60 sits on living springs 420 a - 420 e such that cartridge 60 is suspended slightly from the interior surface 413 .
- Living springs 420 a - 420 e flex in response to a shock event to protective cartridge case 410 , thereby providing protecting to cartridge 60 .
- living springs 420 a - 420 e are formed as round tapered columns with sufficient flexibility to flex in response to a shock event.
- living springs 420 a - 420 e positioned at the corners of cartridge 60 may flex in response to forces both along the reel axis direction and perpendicular thereto to provide protection to cartridge 60 along all directions.
- Living springs 420 a - 420 e may have various other shapes, e.g., squared column, strip, fin, domed features (e.g., separate or molded into the sides or top and bottom portions 412 , 414 ), and the like operable to support cartridge 60 and provide shock absorbent protection to a cartridge therein.
- protective cartridge case 410 is formed integrally with living springs 420 a - 420 e through conventional injection molding techniques.
- the dimensions of living springs 420 a - 420 e may be varied depending on the particular storage cartridge to be contained therein, the dimensions of cartridge case 410 , flexibility of the material forming living springs 420 a - 420 e, desired shock protection, and so on.
- living springs 420 a - 420 e may be solid or hollow members.
- cartridge case 410 may include additional shock absorbing members disposed with bottom portion 412 and/or top portion 414 .
- cartridge case 410 may include absorbing members similar or identical to those shown and described with respect to FIGS. 1 or FIG. 5 (described below). Additionally or alternatively, cartridge case 410 may further include living springs oriented to extend from the minor side surface(s) of cartridge 60 .
- FIG. 5 illustrates another exemplary protective cartridge case 510 having multiple absorbing members 520 and 522 disposed therein for supporting a cartridge.
- cartridge case 510 includes absorbing members 520 and 522 disposed with major inner surfaces 513 and 515 of bottom portion 512 and top portion 514 respectively for cushioning major surfaces of a cartridge during a shock event.
- Absorbing members 520 and 522 in this example are disposed near the corners of the inner surfaces 513 and 515 and may include various elastic materials such as foam, rubber, overmolded features, leaf springs, and the like for providing shock absorbency in a direction substantially parallel to the axis of rotation of the cartridge reel disposed therein, i.e., direction 590 .
- one or more absorbing members 520 and 522 may be overmolded (or otherwise disposed) on the exterior of the cartridge housing to provide support.
- absorbing members 520 and 522 may be similarly disposed on the exterior surfaces of bottom portion 512 and bottom portion 514 .
- two exterior members 520 e and 522 e are shown.
- absorbing members may be overmolded on the exterior minor side surfaces of cartridge case 510 . Accordingly, various portions or the entire exterior of cartridge case 510 may be overmolded (or otherwise disposed) with an elastic material to provide shock absorbency as described herein.
- cartridge case 510 includes absorbing members 530 a and 530 b for supporting minor surfaces of a cartridge.
- Absorbing members 530 a and 530 b may include living springs as described with reference to FIG. 4 .
- Absorbing members 530 a and 530 b may be comolded with bottom portion 512 and top portion 514 respectively or coupled thereto.
- bottom portion 512 includes a reel support member 524 for supporting or engaging a reel of a cartridge disposed therein.
- reel support member 524 may include a spring for co-locating and supporting the reel of a cartridge during a shock event, particularly, a shock event along direction 590 (e.g., if dropped on the top or bottom major surface of cartridge case 510 ).
- reel support member 524 may include a suspension spring that is snapped into a molded feature of the bottom portion 512 .
- reel support member 524 may include other materials such as the same or similar materials used for absorbing members 520 or 522 .
- FIG. 6 illustrates a cross-sectional view of an exemplary latch member 40 for use with protective cartridge case 10 .
- Protective cartridge case 10 is similar to that of FIG. 1 , however it will be recognized by one of ordinary skill in the art that the exemplary latch member 40 may be used with various other cartridge cases including those disclosed herein such as cartridge case 410 or 510 .
- latch member 40 selectively secures bottom portion 12 and top portion 14 of cartridge case 10 in a closed position. Further, latch member 40 operates to secure cartridge case 10 in a closed position with substantially no tension, e.g., under zero-tension when in the closed position. For example, latch member 40 requires force in a horizontal direction (as shown in FIG. 6 ) to close or open latch member 40 , in particular, to force ridge feature 42 of latch member 40 over latch catch feature 44 associated with bottom portion 12 . However, latch member 40 is under substantially zero tension (e.g., zero tension or at least relatively minimal tension compared to the force required to open latch 40 ) in the horizontal direction when latch member 40 is in a closed position.
- substantially zero tension e.g., zero tension or at least relatively minimal tension compared to the force required to open latch 40
- a force of approximately 4 pounds is required to release latch member 40 (i.e., force ridge feature 42 over catch feature 44 ).
- the tension in the horizontal direction of latch member 40 (when in a closed position) is substantially less than the force required to release latch member 40 (in this example, 4 pounds of force).
- the tension in the horizontal direction is less than 1 pound-force in one example, less than 0.5 pound-force in another example, less than 0.1 pound-force in another example, and zero in another example.
- the tension in the vertical direction is generally a function of the interference fit (e.g., compression) of the cartridge therein and the absorbing members 20 and 22 .
- the interference fit may be minimized by designing the features line-to-line, thereby reducing the vertical tension on the latch.
- the force in the vertical direction is less than 1 pound-force, less than 0.5 pound-force in another example, less than 0.1 pound-force in another example, and zero in another example.
- tension in latch member 40 may act as a spring releasing stored energy in a shock or drop event of cartridge case 10 .
- a shock event may cause the release of latch member 40 and potentially causing cartridge case 10 to open (as opposed to latch member 40 merely becoming disengaged).
- the force of latch member 44 snapping open if under tension, may cause the protective storage case 10 to open and expose a storage cartridge therein.
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Abstract
Description
- 1. Field of the Invention
- The invention relates generally to protective cases for storage media devices, and more specifically to protective cases for containing and protecting storage tape cartridges having one or more reels.
- 2. Related Art
- Magnetic tape cartridges have been used to conveniently and efficiently store and handle magnetic recording media for tape drives. One type of tape cartridge consists of a substantially rectangular exterior cartridge housing and a single reel containing a magnetic tape positioned within the housing. The cartridge housing includes an upper housing section and a lower housing section which substantially enclose the magnetic tape, which includes a cartridge leader. The cartridge leader becomes exposed through an opening in the cartridge housing during insertion of the cartridge into the tape drive. The tape drive is then able to engage and retrieve the tape from the cartridge for recording and/or playback.
- Such cartridges are generally contained in a cartridge case or container when they are transported or stored outside of a drive or storage library. The cartridge case is typically formed of a rigid plastic material, such as polypropylene or the like, through a suitable injection molding process. Further, the cartridge case generally includes a container body and a lid which is connected to one edge of the container body by way of a thin hinge portion such that the lid may rotate to open and close the container body. The lid generally snaps into a closed position, thereby protecting the housed cartridge from dust and other contamination.
- A conventional cartridge case is described, for example, in U.S. Pat. No. 6,443,304, entitled “Cassette Container.” The cartridge case therein generally includes a container body having a lid member connected to the container body by way of a hinge to open and close the container body for housing a cassette or cartridge therein. Conventional cartridge cases such as that disclosed by U.S. Pat. No. 6,443,304, however, provide little protection to a cartridge therein due to a shock event, such as being dropped (which may cause damage to the cartridge or media therein resulting in lost data). Accordingly, a cartridge case providing greater protection due to shock events is desired.
- In one aspect and example the invention, a protective cartridge case for housing a storage cartridge having at least one reel is provided. The protective cartridge case includes a housing for enclosing the storage cartridge therein, the housing including a top portion and a bottom portion having opposing major inner surfaces in a closed position. The protective case further including a first absorbing member disposed adjacent the inner surface of the top portion and a second absorbing member disposed adjacent the inner surface of the bottom portion. In a closed position the first and second absorbing members are disposed adjacent major surfaces of a storage cartridge disposed therein for absorbing shock and providing cushioning to the major surfaces of the storage cartridge in response to a shock event.
- In some examples, the protective cartridge case may include additional absorbing members disposed adjacent minor side surfaces of the housing. The additional absorbing members are further disposed adjacent minor side surfaces of the storage cartridge and reduce forces and provide cushioning to the minor side surfaces of the storage cartridge in response to a shock event. The protective cartridge case may thereby provide protection to the storage cartridge along the axis of the reel as well as other directions (e.g., along the minor side surfaces).
- The absorbing members may include foam, rubber, spring members, living springs, or other elastic structures and/or materials. In some examples, absorbing members (e.g., foam) are attached to the housing via adhesive or a friction fit. In other examples, absorbing members (e.g., living spring) are comolded or integrally formed with housing portions.
- According to another example, a protective cartridge case for housing a storage cartridge includes a housing for enclosing a tape cartridge having a reel disposed therein, the housing including a top portion and a bottom portion having opposing major inner surfaces in a closed position and living springs disposed on the inner surface of the top or bottom portion, the living springs for engaging a portion of the storage cartridge and flexing to provide protection to the storage cartridge (e.g., in response to a shock event). Additional living springs may be included with the top and bottom portion with the major inner surfaces or minor side surfaces thereof to provide protection to a storage cartridge therein.
- According to another aspect and example of the invention, a protective cartridge case includes a housing having a top and bottom portion for enclosing a storage cartridge, the top and bottom portions having major surfaces that oppose each other along a vertical direction, and a latch member for selectively securing the top portion and bottom portion in a closed position, wherein the latch member secures the top and bottom portion in a closed position with substantially zero tension on the latch member in the horizontal direction.
- The present invention is better understood upon consideration of the detailed description below in conjunction with the accompanying drawings and claims.
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FIG. 1 illustrates a perspective view of an exemplary protective cartridge case having absorbing members disposed therein; -
FIG. 2 illustrates a cross-sectional view of an exemplary protective cartridge case with a storage cartridge disposed therein in a closed position; -
FIG. 3A illustrates exemplary absorbing members for a protective cartridge case; -
FIG. 3B illustrates an exemplary shell portion of a protective cartridge case having a body portion and a lid portion; -
FIGS. 3C and 3D illustrate exemplary absorbing members for use with a protective cartridge case; -
FIG. 4 illustrates another exemplary protective cartridge case having absorbing members disposed therein; -
FIG. 5 illustrates another exemplary protective cartridge case having absorbing members disposed therein; and -
FIG. 6 illustrates an exemplary zero tension latch for a protective cartridge case. - The following description is presented to enable a person of ordinary skill in the art to make and use the various aspects and examples of the inventions. Descriptions of specific materials, techniques, and applications are provided only as examples. Various modifications to the examples described herein will be readily apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other examples and applications without departing from the spirit and scope of the invention. Thus, the present invention is not intended to be limiting to the examples described and shown, but is to be accorded the scope consistent with the appended claims.
- Broadly speaking, and in one example, a protective cartridge case for housing a storage cartridge having at least one reel is described. The protective cartridge case includes a housing for enclosing the storage cartridge therein, the housing including a top portion and a bottom portion. The protective case further includes a first absorbing member disposed adjacent a major surface of the top portion and a second absorbing member disposed adjacent a major surface of the bottom portion. The absorbing members provide protection to a storage cartridge (to both the media and the cartridge housing/mechanics) within the housing during a shock event, such as being dropped. Absorbing members may be disposed to protect the storage cartridge along the axis of the reel and protect the storage cartridge housing on all axes.
-
FIG. 1 illustrates a perspective view of an exemplaryprotective cartridge case 10 having absorbing members disposed therein. Additionally,FIGS. 2 , 3A, and 3B, which is preferably referenced in combination withFIG. 1 , illustrates a cross-sectional view and exploded views respectively of theprotective cartridge case 10 with astorage cartridge 60 disposed therein. -
Protective cartridge case 10 generally includes abottom portion 12 and atop portion 14 connected through aflexible portion 31 such that they rotate relative to each other for selectively enclosing acartridge 60 therein. Thebottom portion 12 andtop portion 14 may be secured in a closed position by alatch member 40, in this instance included withtop portion 14 and adapted for engaging with acatch feature 44 ofbottom portion 12. -
Bottom portion 12 andtop portion 14 further include major (as opposed to minor or side surfaces)inner surfaces inner surfaces vertical direction 90, wheredirection 90 is associated with an axis of rotation of a reel ofcartridge 60 when disposed therebetween.Inner surfaces direction 90 and substantially parallel to each other. Disposed adjacentinner surface 15 oftop portion 14 andinner surface 13 ofbottom portion 12 are absorbingmembers members major surfaces 62 of cartridge 60 (seeFIG. 2 ) in a closed position for protecting cartridge 60 (e.g., absorbing energy by compressing) in response to a shock event that results in forces alongdirection 90. - Absorbing
members cartridge 60 when in a closed position. For example, the spacing between opposing surfaces of absorbingmembers direction 90 may be slightly larger than the height of cartridge 60 (e.g., the height ofcartridge 60 along the length of minor side surface 64 of cartridge 60). In other examples, however, the spacing between opposing surfaces of absorbingmembers cartridge 60 such that one or both of the absorbing members compress slightly in a closed position. In yet other examples, a feature or layer may be disposed betweencartridge 60 and one or both of absorbingmembers major surfaces 62 ofcartridge 60 are not in physical contact with absorbingmembers -
Protective cartridge case 10 further includes absorbingmembers 24 disposed withbottom portion 12 and adjacent opposing minor side surfaces 12 s thereof. Absorbingmembers 24 are disposed, at least primarily, for absorbing energy in response to a shock event that results in forces along a direction perpendicular todirection 90. In this example each absorbingmember 24 includes a central portion for opposing the other absorbingmember 24 and adjacent to minor side surfaces 64 ofcartridge 60 disposed therein. Each absorbingmember 24 further includesend portions 26 disposed adjacent the opposing minor side surfaces 64 ofcartridge 60 not adjacent the central portion ofmember 24 to provide protection for the remaining sides surfaces 64 ofcartridge 60. - Thus, the combination of absorbing
members cartridge 60 and absorb energy from a shock event (e.g., from droppingcartridge case 10 containing cartridge 60) on all sides of cartridge 60 (e.g., the opposing major surfaces-62 and the four minor side surfaces 64). - In other examples, the absorbing members may vary in shape or configuration from that shown. For example, absorbing
members 24 c shown inFIG. 3C , generally similar to absorbingmembers 24 withoutend portions 26, may be disposed around minorinner surfaces 12 s ofbottom portion 12 to provide support tominor surfaces 62 ofcartridge 60. - Additionally or alternatively, in another example, absorbing
members 24 d shown inFIG. 3D may be disposed at the corners ofbottom portion 12 to support theminor surfaces 62 ofcartridge 60. Alternatively or additionally, absorbing members (e.g., 24, 24 c, and/or 24 d) may be disposed withtop portion 14 and disposed for supporting side surfaces 62 ofcartridge 60. - In this
example absorbing members FIG. 3A for a more detailed view); however, other shapes or configurations are possible and contemplated. For example, multiple absorbing members may be disposed with each ofinner surfaces cartridge 60. Further, in otherexamples absorbing members - Absorbing members used with
cartridge case 10, e.g., absorbingmembers FIG. 5 below), spring members, leaf springs, living springs (e.g., as detailed with respect toFIG. 4 below), or other suitable materials for absorbing shock and protecting a cartridge. In one example, the absorbingmembers - Further, the material, thickness, and spring constant of absorbing
members members 24. For example, because of the varying surface area of the surfaces of a cartridge and the desired protection along particular directions, the thickness, density, spring constant value, shape, etc. of absorbingmembers 24 may vary from that of absorbingmembers - In one example,
bottom portion 12,top portion 14,flexible portion 31, and latchmember 40 are integrally formed of any suitable material such as polypropylene (with an impact modifier), polycarbonate, or the like, through well-known injection molding processes. Additionally, various other features such as column 18 (or living springs described below with respect toFIG. 4 ) may be comolded therewith. In other examples, however, various portions may be made by other processes or made separately and coupled together. - Further, the
bottom portion 12 andtop portion 14 may include features, e.g., ridges or tabs for engaging absorbing members in a snap fit, friction fit or otherwise. Additionally, absorbingmembers inner surfaces features 18, e.g., columns or pins, for mating with absorbingmember 24 to aid in securing absorbingmembers 24 in place, particularly when acartridge 60 is not present. -
FIG. 4 illustrates another exemplaryprotective cartridge case 410 having absorbing members disposed therein.Protective cartridge case 410 is similar to that ofprotective cartridge case 10, however, in this instance multiple living springs 420 a-420 e are disposed withbottom portion 412 adjacent portions ofcartridge 60 disposed therein. - In this example, living springs 420 a-420 e are disposed adjacent corners and minor side surfaces 62 of
cartridge 60 disposed therein. Although not shown for each corner ofcartridge 60, two living springs are positioned withbottom portion 410 at each corner ofcartridge 60. Additionally or alternatively, living springs may be positioned withtop portion 414 in a similar or complimentary fashion as living springs 420 a-d shown withbottom portion 412. -
Cartridge 60 sits on living springs 420 a-420 e such thatcartridge 60 is suspended slightly from theinterior surface 413. Living springs 420 a-420 e flex in response to a shock event toprotective cartridge case 410, thereby providing protecting tocartridge 60. In this particular example, living springs 420 a-420 e are formed as round tapered columns with sufficient flexibility to flex in response to a shock event. Further, living springs 420 a-420 e positioned at the corners ofcartridge 60 may flex in response to forces both along the reel axis direction and perpendicular thereto to provide protection tocartridge 60 along all directions. - Living springs 420 a-420 e may have various other shapes, e.g., squared column, strip, fin, domed features (e.g., separate or molded into the sides or top and
bottom portions 412, 414), and the like operable to supportcartridge 60 and provide shock absorbent protection to a cartridge therein. In one example,protective cartridge case 410 is formed integrally with living springs 420 a-420 e through conventional injection molding techniques. The dimensions of living springs 420 a-420 e may be varied depending on the particular storage cartridge to be contained therein, the dimensions ofcartridge case 410, flexibility of the material forming living springs 420 a-420 e, desired shock protection, and so on. Additionally, living springs 420 a-420 e may be solid or hollow members. - Additionally,
cartridge case 410 may include additional shock absorbing members disposed withbottom portion 412 and/ortop portion 414. For example,cartridge case 410 may include absorbing members similar or identical to those shown and described with respect toFIGS. 1 orFIG. 5 (described below). Additionally or alternatively,cartridge case 410 may further include living springs oriented to extend from the minor side surface(s) ofcartridge 60. -
FIG. 5 illustrates another exemplaryprotective cartridge case 510 having multiple absorbingmembers cartridge case 510 includes absorbingmembers inner surfaces bottom portion 512 andtop portion 514 respectively for cushioning major surfaces of a cartridge during a shock event. Absorbingmembers inner surfaces direction 590. - In other examples, one or more
absorbing members members bottom portion 512 andbottom portion 514. For example, with reference toFIG. 6 , twoexterior members cartridge case 510. Accordingly, various portions or the entire exterior ofcartridge case 510 may be overmolded (or otherwise disposed) with an elastic material to provide shock absorbency as described herein. - Additionally,
cartridge case 510 includes absorbingmembers members FIG. 4 . Absorbingmembers bottom portion 512 andtop portion 514 respectively or coupled thereto. - Additionally,
bottom portion 512 includes areel support member 524 for supporting or engaging a reel of a cartridge disposed therein. For example,reel support member 524 may include a spring for co-locating and supporting the reel of a cartridge during a shock event, particularly, a shock event along direction 590 (e.g., if dropped on the top or bottom major surface of cartridge case 510). In one example,reel support member 524 may include a suspension spring that is snapped into a molded feature of thebottom portion 512. In other examples,reel support member 524 may include other materials such as the same or similar materials used for absorbingmembers -
FIG. 6 illustrates a cross-sectional view of anexemplary latch member 40 for use withprotective cartridge case 10.Protective cartridge case 10 is similar to that ofFIG. 1 , however it will be recognized by one of ordinary skill in the art that theexemplary latch member 40 may be used with various other cartridge cases including those disclosed herein such ascartridge case - Broadly speaking,
latch member 40 selectively securesbottom portion 12 andtop portion 14 ofcartridge case 10 in a closed position. Further,latch member 40 operates to securecartridge case 10 in a closed position with substantially no tension, e.g., under zero-tension when in the closed position. For example,latch member 40 requires force in a horizontal direction (as shown inFIG. 6 ) to close oropen latch member 40, in particular, to forceridge feature 42 oflatch member 40 overlatch catch feature 44 associated withbottom portion 12. However,latch member 40 is under substantially zero tension (e.g., zero tension or at least relatively minimal tension compared to the force required to open latch 40) in the horizontal direction whenlatch member 40 is in a closed position. - In one example, a force of approximately 4 pounds is required to release latch member 40 (i.e.,
force ridge feature 42 over catch feature 44). The tension in the horizontal direction of latch member 40 (when in a closed position) is substantially less than the force required to release latch member 40 (in this example, 4 pounds of force). For example, the tension in the horizontal direction is less than 1 pound-force in one example, less than 0.5 pound-force in another example, less than 0.1 pound-force in another example, and zero in another example. - Additionally, in one example the tension in the vertical direction is generally a function of the interference fit (e.g., compression) of the cartridge therein and the absorbing
members - Reducing or eliminating tension in
latch member 40 may be desirable because tension inlatch member 40 may act as a spring releasing stored energy in a shock or drop event ofcartridge case 10. In particular, iflatch member 40 is under tension (having energy stored therein), a shock event may cause the release oflatch member 40 and potentially causingcartridge case 10 to open (as opposed to latchmember 40 merely becoming disengaged). For example, the force oflatch member 44 snapping open, if under tension, may cause theprotective storage case 10 to open and expose a storage cartridge therein. - The above detailed description is provided to illustrate various examples and is not intended to be limiting. It will be apparent to those of ordinary skill in the art that numerous modification and variations within the scope of the present invention are possible. For example, various examples described herein may be combined and altered. Further, numerous other devices and processes not explicitly described herein may be used with the exemplary cartridges and locking mechanisms described as will be recognized by those of ordinary skill in the art. Additionally, within the description, particular examples have been discussed and how these examples are thought to address certain disadvantages in related art. This discussion is not meant, however, to restrict the various examples to methods and/or systems that actually address or solve the disadvantages. Accordingly, the present invention is defined by the appended claims and should not be limited by the description herein.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/709,445 US20080197032A1 (en) | 2007-02-21 | 2007-02-21 | Protective cartridge case having zero-tension latch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/709,445 US20080197032A1 (en) | 2007-02-21 | 2007-02-21 | Protective cartridge case having zero-tension latch |
Publications (1)
Publication Number | Publication Date |
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US20080197032A1 true US20080197032A1 (en) | 2008-08-21 |
Family
ID=39705711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/709,445 Abandoned US20080197032A1 (en) | 2007-02-21 | 2007-02-21 | Protective cartridge case having zero-tension latch |
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US (1) | US20080197032A1 (en) |
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