MAGAZINE FOR DATA STORAGE UNITS IN COMBINATION WITH READ/WRITE APPARATUS FOR RECEIVING THE MAGAZINE

Abstract: A magazine (l0) for holding one or more data storage units (ll) is provided on top with a carrying handle (l2). The magazine (l0) is intended to be loaded into apparatus (30) arranged to write data to and/or read data from the data storage units (ll). To facilitate loading of the magazine (l0) into the apparatus (30), the latter is provided with an upright door (3l) arranged to tilt open outwardly by pivotal movement about a substantially hori­ zontal axis lying in the region of the bottom of the door. To load the magazine (l0) simply requires the latter to be tilted slightly from its normal carrying position and then slide down the back of the open door (3l) and into the apparatus.

Description: The present invention relates to the combination of a magazine for holding data-storage units, and apparatus arranged to receive the magazine and to write data to and/or read data from the data storage units of the magazine. Various prior art arrangements are known in which a magazine is used to store a plurality of data storage units in order generally to facilitate the handling of the units including loading of the units into read/write apparatus. In particular, UK patent specification no. l,302,389 discloses a magazine for holding a vertical stack of hori­ zontally disposed tape cartridges. The magazine is hori­ zontally insertable into a front opening in tape record/­ playback apparatus. To facilitate the insertion of the magazine into the apparatus, a handle is provided on the wall of the magazine that faces outwards following the insertion operation. A disadvantage of the arrangement described in UK l,302,289 is that during insertion of the magazine into the record/playback apparatus, the weight of the magazine provides a considerable eccentric load on the hand and wrist of the user. This results in lack of control and general difficulty in the positioning and insertion of the magazine into the apparatus. It is an object of the present invention to provide a combination of magazine and apparatus in which loading of the magazine into the apparatus is facilitated. According to the present invention there is provided, in combination; a magazine arranged to hold a plurality of data storage units, the magazine comprising a housing provided on top with a carrying handle; and apparatus arranged to receive the magazine with data storage units held therein and to write data to and/or read data from the data storage units, the apparatus including a casing with an upright door arranged to tilt open outwardly by pivotal movement about a substantially horizontal axis lying in the region of the bottom of the door, the door when open permit­ ting the magazine to be inserted down past the back of the door into the apparatus after the magazine has first been tilted from its normal carrying orientation. When the magazine is being carried by its handle, the bulk of the magazine resides below the handle which is comfortable and convenient for the user. To load the magazine into the read/write apparatus simply requires the magazine to be tilted from its normal carrying position and slid down into the apparatus with very little eccentric loading of the hand and wrist of the user. This arrange­ ment is particularly useful for apparatus intended for rack mounting where a magazine can generally only be front-loaded into the apparatus. Advantageously, to facilitate the guiding and location of the magazine during its insertion into the read/write apparatus, the casing door is rearwardly provided with guide elements arranged to engage in guide channels externally formed on opposite sides of the magazine housing. Preferably, correct seating of the magazine within the apparatus is achieved by the provision of locating stops on a base member of the apparatus, the magazine being arranged to seat on these stops after its insertion into the appara­ tus casing and closure of the casing door. Furthermore, resilient means may be provided on the casing door or body to apply a downwards force to the magazine whereby to hold the latter against said locating stops. Preferably, fixed stop means are also provided for locating the magazine in an inwards direction of the apparatus; again resilient means can be positioned to urge the magazine against these stop means upon closure of the casing door. In this manner, the magazine may be located relative to a fixed part of the apparatus both vertically and horizontally. Advantageously, the casing door and the magazine housing are provided with respective window openings which after the magazine has been inserted into the apparatus, line up to enable a user to see the data storage units, if any, present in the magazine. Preferably, the magazine is provided with retention means for individually holding each cartridge stored therein in position. An embodiment of the invention in the form of a tape-­ cartridge magazine and tape read/write apparatus arranged to receive the magazine, will now be particularly described by way of example, with reference to the accompanying diagram­ matic drawings, in which: Figure l is a perspective view of the tape-cartridge magazine showing one cartridge positioned therein and another ready for insertion; Figure 2 is a perspective view of the front of the read­ /write apparatus showing the loading of the magazine into the apparatus through an outwardly-opening door of the latter; and Figures 3 and 4 are sectional views through the front portion of the read/write apparatus showing, in elevation and plan respectively, the arrangement of the door of the apparatus. The tape-cartridge magazine l0 shown in Figure l is arranged to hold six tape cartridges which, for example, are of a form similar to that described in US Patent Specifi­ cation No. 3,692,255. The magazine l0 comprises an open-fronted housing provided on top with a carrying handle l2. The housing is made up of opposed side walls l3,l4 inter-connected by a base l5 and top l6, and a rear wall l7 formed with a vertical window l8 extending the full height of the housing. The side walls l3,l4 are internally provided with five pairs of horizontal ledges 2l which serve to seat respective tape cartridges ll, the housing base l5 seating a sixth cartridge ll. The cartridges can be readily inserted and withdrawn from the housing by being slid in and out through the open front of the housing. Spring elements 22 fixed to the housing side walls l3,l4 are arranged to engage corresponding recesses 23 in the sides of the cartridges ll when the latter are fully inserted into the housing whereby to exert a small retention force lightly holding the cartridges in their fully-inserted positions. The two side walls l3,l4 are externally formed with vertical guide channels 24 which are flared at their lower ends 25. The purpose of these channels 24 will be explained hereinafter. When being used to carry one or more cartridges ll, the magazine l0 is held by its handle l2 and depends vertically therefrom with the cartridges ll substantially horizontal. In such a carrying position, the weight of the magazine and cartridges can be comfortably borne by the user. Figure 2 illustrates the loading of the magazine l0 into the tape read/write apparatus 30 through an outwardly-­ opening door 3l provided in the front wall of a casing 32 of the apparatus. The apparatus itself may, for example, be of the form described and illustrated in our copending Inter­ national Patent Application No. PCT/GB85/00452 in which a selector mechanism operates to withdraw a selected cartridge from the magazine and transport it to a read/write station of the apparatus. The selector mechanism and the read/write station form no part of the present invention and will therefore not be further described herein. The structure of the door 3l is shown in Figures 3 and 4. The door 3l comprises a front panel 34 pivoted at its lower end about a horizontal shaft 33 mounted in the front wall of the casing 32. The door further comprises two side panels 35 extending rearwardly from the panel 34, and two corner base plates 36. The front panel 34 of the door 3l is formed with a window (see Figure 2). When closed, the door 3l resides in an upright position flush with the rest of the front wall of the casing 32. A latch mechanism, not shown, is provided to latch the door 3l in its closed position. The door is moved to an open position by release of the latch mechanism followed by pivotal movement about the shaft 33, the limit of this movement (and thus the fully-open position of the door) being defined by a two-arm linkage 37 extending between the door 3l and a point 38 fixed relative to the apparatus casing 32. The open position of the door is shown in dashed lines in Figures 3 and 4. The side panels 34 have their free, upright, edge portions 38 turned inwards to form guide elements for engaging corresponding ones of the guide channels 24 of the magazine l0. A base member 40 of the apparatus casing mounts four locating stops 4l and two locating stops 5l. All six locating stops are machined with horizontal surfaces 52 which serve to seat the magazine after it has been loaded into the read/write apparatus and the door 3l closed. In order to permit the front two stops 4l to engage the maga­ zine, the corner base plates 36 are formed with correspond­ ing apertures 4l. A pair of spring elements 46 attached to the side panels 35 are arranged to engage the top side edges of the magazine l0 to apply a downwards force thereto whereby to hold the magazine down on the horizontal surfaces 52 of the locating stops 4l,5l; in this manner, the magazine is accurately located in the vertical direction after insertion into the apparatus. Each of the locating stops 5l is also machined with a vertical surface 53 and a sloping lead-in surface 54 (see Figure 3). A second pair of spring elements 47 fixed to the front panel 34 of the door serve to urge the magazine away from the panel so that as the door is closed, the inward bottom edge of the magazine is pushed against the lead-in surfaces of the stops 5l and moves down these surfaces to locate against the surfaces 53. In this manner, the magazine is accurately located in a horizontal, inwards, direction. The stops 4l may also be provided with lead-in surfaces to facilitate the sideways location of the magazine. In use, to load the magazine into the read/write apparatus 30, the door 3l is moved into its open position illustrated in Figure 3. The magazine is then tilted from its normal carrying position to line up with the open door 3l (see Figure 2). Next, the magazine is lowered so as to engage the guide elements 39 of the door in the guide channels 24 formed in the side walls of the magazine, this engagement being facilitated by the flared lower ends 25 of the guide channels. Upon engagement of the guide elements 39 in the channels 24, the magazine can be rapidly lowered down the back of the door to come to rest on the corner base plates 36 of the door. Thereafter, the door is closed bringing the magazine into an upright position in which it is seated on the locating stops 4l rather than the base plates 36. The spring elements 46 engage the top side edges of the magazine to hold it down on the horizontal surfaces 52 of the stops 4l,5l while the spring elements 47 locate the magazine against the vertical surfaces 53 of the stops 5l. The rake of the handle l2 of the magazine l0 (see Figures l and 2) reduces the height of the door opening required to ensure unobstructed passage of the magazine into the apparatus upon closure of the door 3l. The window 45 provided in the front panel 34 of the door 3l is so positioned as to line up with the window l8 in the magazine l0; as a result a user can see into the magazine from outside of the apparatus in order to ascertain how many cartridges ll are present. The described magazine can be provided with additional features as desired. Thus, a selectively-settable write-­ protect arrangement can be installed on the magazine to cooperate with complimentary means provided in the apparatus in order to prevent (either physically or otherwise) the writing of data to any of the cartridges stored in the magazine. Although in the above-described embodiment the magazine 10 is arranged to hold tape cartridges in a horizontal attitude, it will be appreciated that other types of data storage units could equally well be held in the magazine in any appropriate orientation. Thus, for example, the magazine could be designed to hold optical storage discs positioned vertically.

Claims: 1. In combination: a magazine (l0) arranged to hold a plurality of data storage units (ll), the magazine (l0) comprising a housing (l3-l7) provided on top with a carrying handle (l2); and apparatus (30) arranged to receive the magazine (l0) with data storage units (ll) held therein and to write data to and/or read data from the data storage units, the apparatus (30) including a casing with an upright door (3l) arranged to tilt open outwardly by pivotal movement about a substantially horizontal axis lying in the region of the bottom of the door, the door (3l) when open permitting the magazine (l0) to be inserted down past the back of the door into the apparatus (30) after the magazine (l0) has first been tilted from its normal carrying orientation. 2. The combination set forth in claim l, wherein the casing door (3l) and the magazine housing (l3-l7) are provided with respective window openings (45,l8) which after the magazine (l0) has been inserted into the apparatus(30), line up to enable a user to see the data storage units, (ll) if any, present in the magazine. 3. The combination set forth in claim l or claim 2, wherein the casing door (3l) is rearwardly provided with guide elements (39) arranged to engage in guide channels (24,25) externally formed on opposite sides of the magazine housing, (l3,l7) the cooperation of the guide elements (39) and channels (24,25) serving to guide the magazine (l0) during its insertion into the apparatus(30). 4. The combination set forth in any one of the pre­ ceding claims, wherein the apparatus (30) is provided with fixed locating stops (4l,45) on which the magazine (l0) is arranged to seat after its insertion into the casing and closure of the casing door (3l). 5. The combination set forth in claim 4, wherein the apparatus (30) is provided with resilient means (46) arranged to apply a downwards force to the magazine (l0) whereby to hold the latter against said locating stops (4l,5l). 6. The combination set forth in any one of the pre­ ceding claims, wherein the apparatus (30) is provided with fixed stop means (53) for locating the magazine (l0) in an inwards direction of the apparatus upon closure of the casing door (3l), the apparatus being further provided with resilient (47) means arranged to urge the magazine (l0) against said stop means. 7. The combination set forth in any one of the pre­ ceding claims, wherein the magazine (l0) is provided with retention means (22) for individually holding each cartridge (ll) stored therein in position.

Inventors: DIMOND, STEVEN ANDREW, ESCUDER, MANUEL ANGEL
Applicants: HEWLETT-PACKARD LIMITED
Application year: 1986
Main classification: G11B15
IPC codes: G11B15