Classifications

• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
  • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
  • G09B29/06—Maps; Plans; Charts; Diagrams, e.g. route diagram of belt form, e.g. endless belt

Definitions

• This invention relates to scrolls and more particularly, though not necessarily exclusively to maps and charts of the kind which can conveniently be mounted on a scroll for storage.
• the apparatus is of the kind in which two half-casings are biased to close towards each other to form a complete casing for the map, chart or the like, which is wound in scroll form.
• the two half-casings are separable laterally against this bias to reveal the map.
• the map, chart and the like in the scroll form is mounted within the two halves of the cartridge on a pair of supports, one for each half-casing.
• the supports are provided with a locking means.
• Selective disabling means are mounted at one axial end of the casing and positioned for selective engagement with the respective locking means to disable the same to allow the two half-casings to be separable laterally against the bias of the spring.
• a scroll comprising: a generally elongate casing; a generally tubular core support mounted within the casing and providd with a longitudinal key slot adapted to receive and to key with a complementary edge member extending along a marginal edge of a flexible substrate bearing a map, chart, diagram or other useful, educational or entertaining illustration or information, or the like, thereby enabling the flexible substrate to be mounted to the support for winding thereabout; the casing being closed at one end and' the tubular support and one end thereof being coupled to the said one end of the casing in a manner allowing rotation of the tubular support about its axis relative to the casing; means associated with the tubular support serving as an anchor for one end of a spring mounted internally of the tubular support; the other_end of the tubular support being coupled to the casing in a manner allowing the said rotation, and being provided with an end member to which the other end of the spring is coupled; means adapted to prevent the said end member from rotating with the tubular support, whereby
• the other end of the casing preferably includes an arrangement enabling one axial end of the key slot, which is preferably formed with a simple T- or L-shape profile, to be exposed, enabling one said flexible substrate to be demounted from the scroll and an alternative flexible substrate to be put in its plate.
• a T-shaped profile is especially valuable since it enables the key slot to provide adequate support with a shallow profile so enabling the key slot to be accommodated in the tubular support while leaving a substantial proportion of the internal volume of the tubular support for accommodating the spring and associated mechanisms.
• the said other end of the casing is provided with a slide coupled to the remainder of the said other end of the casing in a groove-and-rail arrangement, the slide cooperating with the said end member in a cam-and-cam follower arrrangement serving to reciprocate the end member axially whereby to selectively engage or to disengage the holding means as the slide moves between its extremes of travel.
• the end member may be provided With a groove and the slide with a rail adapted to ride in the groove, thereby providing the said means adapted to prevent the end member from rotating with the tubular support.
• Fig. 1 is a longitudinal sectional view through a first embodiment of scroll constructed according to the present invention
• Fig. 2 is a longitudinal sectional view of the scroll of Fig. 1 taken along the line II-II in Fig. 1;
• Fig. 3 is an enlarged sectional view taken along the line III-III in Figs. 1 and 2;
• Fig. 4 is an enlarged elevational view of an end member which serves both as a spring anchor and as part of a holding means for temporarily holding the tubular support in a selected position;
• Fig. 5 is an elevational view taken at 90° from the elevational view of Fig. 4;
• Fig. 6 is top plan view of the end member of Figs. 4 and 5 as seen from the left in Figs. 4 and 5;
• Fig. 7 is an enlarged sectional view of the slide member of the embodiment of Figs. 1 and 2 taken along the line VII-VII shown in Figs. 1 and 8;
• Fig. 8 is an underneath plan view of the slide member of Fig. 7;
• Fig. 9 is an enlarged cross-sectional view of the tubular core support of the embodiment of Figs. 1 and 2 illustrating a complementary edge member in position in the key slot;
• Fig. 10 is an enlarged end view of a tube end member for the tubular core support which serves also as a bearing- for the end member of Figs. 4, 5 and 6 and constitutes a further part of the holding means;
• Fig. 11 is a sectional view taken along the line XI-XI in Fig. 10;
• Fig. 12 is an elevational view of the tube end member shown in Figs. 10 and 11 as seen from the right in Fig. 11;
• Fig. 13 is an enlarged part sectional view illustrating the path for removal of a flexible substrate from the apparatus
• Fig. 14 is an enlarged elevational view of the other tube end member
• Fig. 15 is a longitudinal sectional view taken along the line XV-XV in Fig. 14;
• Fig. 16 is a sectional view taken along the line XVI-XVI in Fig. 15;
• Fig. 17 is a somewhat schematic longitudinal sectional view through a second embodiment of scroll constructed in accordance with the present invention and having a single casing.
• Figs. 1 to 16 The apparatus of Figs. 1 to 16 is suitably embodied in the form of two half casings, only one of which, and the internal mechanism thereof, is illustrated in Figs. 1 to 16.
• the half casing 1 of Figs. 1 and 2 has an open side 2 , Mounted within the half casing 1 is a generally tubular core support 3 about which a flexible substrate (for the sake of clarity omitted from all Figs, expect Fig. 9) may be wound.
• the substrate may for example be printed with a map, chart, diagram or other useful, educational or entertaining illustration or information, or anything similar.
• the tubular core support is provided with a longitudinal key slot 4 which, as illustrated, for example, in the sectional view of Fig. 9, is suitably generally T-shaped in section.
• the flexible substrate 120 has a complementary edge member 121 extending along its marginal edge, the complementary edge member being adapted to be received in and to key with the longitudinal key slot as shown in Fig. 9.
• the tube end member 5 has a cylindrical portion 7 which has a flange 8 at one axial end, a longitudinally extending stem 9 at the other axial end of the cylindrical portion 7 terminating in a spacer 10 and an anchor point 11 for a spring (not illustrated).
• cylindrical portion and the spacer 10 are formed with aligned longitudinal grooves 12, 12* in which is received the radially inwardly extending portion 13 of the tubular core support surrounding the longitudinal key slot 4.
• cylindrical portion 7 and spacer 10 are effectively keyed to the tubular core support so that "the tube end member 5 necessarily rotates together with the tubular core support.
• flange 8 of cylindrical portion 7 is trapped but freely rotatable between the closed end 101 of the casing and a fixture plate 102 which is either a force fit in the casing or adhered thereto by adhesive or ultrasonic welding.
• the other end of the tubular core support is provided with tube end member 6 best shown in Figs. 10, 11 and 12.
• the tube end member 6 has a generally cylindrical portion 15 keyed to to the tubular core support in a similar manner to the generally cylindrical portion 7 of tube end member 5, namely by provision of a key slot 124 adapted to receive the inwardly displaced ledge 13 (Fig. 9) defining the T-shaped slot- 4.
• Tube end member 6 also has a flange 16 with a through slot 122 aligned with the T-shaped key slot in the tubular core support.
• a collar 22 which terminates in a relatively thin walled distal end portion 103 which is mounted for free rotation in an opening 104 of a plate 105 best shown in Fig. 3.
• the Plate 105 is fixed to the casing in like manner to plate 102.
• tubular core support 3 will rotate together with its respective tube end members 5 and 6 and with that end of the spring which is attached to spring anchor point 11.
• the other end of the spring which is located within the inner space 17 of the tubular core support 3, is anchored to an anchor point 18 of an end member 19 which serves both as a spring anchor and as part of an arrangment adapted to temporarily lock the scroll against opening or closing, and is shown in Figs. 4. 5 amd 6.
• Anchor point 18 is located at one end of a central stem 20 of the member 19, the member further including a generally cylindrical portion 21 which is slidingly received within the tubular collar 22 with stem 20 extending through an axial opening 23 in the centre of tube end member 6.
• the tube end member 6 and the member 19 together constitute releasable holding means for the scroll, as will be further explained below.
• the forward end of the cylindrical portion 21 of the member 19 has a plurality of teeth 24 which are adapted to engage with co-operating pawls 25 located on the inner wall of collar 22 at the bottom of the cavity defined thereby.
• Spring means such as a tension coil spring coupled between the.anchor points 11 and 18 tends not only to bias the member 19 into the tubular core support in the direction to bring the teeth into engagement with the pawls, but also tends to bias the member 19 for rotation about its axis. Such rotation is prevented in the illustrated arrangement by two means. Firstly, it will be noted that the head 106 is provided with a central groove
• a slide member 26 (Figs. 1, 2, 4, 7 and 13).
• the slide member 26 is coupled to the remainder of the corresponding end of the casing 1 by means of a groove-and-rail arrangement 109.
• Fig. 8 shows the underside of the slide member 26. It will be seen in that view that barb-like structures 123 are provided at the innermost end of the slide (the left hand side in the orientation of Fig. 8). These barb-like structures are adapted to catch against a corresponding ledge or abutment on the inside surface of the remainder of the corresponding end of the casing 1 so as to prevent the slide from being fully withdrawn from the casing end.
• the rail 108 is profiled as is the bottom surface 110 of the groove 107 (Fig. 2).
• the head 106 of the member 19 has sideways extending wings.115 which are received on respective sloped surfaces 116 on the inner side surfaces of the slide member 26.
• Each surface 116 has a profile which generally corresponds with that of rail 108 until terminating in a ledge 117.
• the spring bias is selected to be such as to prevent ready rotation with camming of the pawl over the sloped profile edge of the teeth. In effect the apparatus is locked both against unwinding and re-winding when the pawl and teeth are inter-engaged.
• the holding means must be disengaged by moving the member 19 axially outwardly (to the right in Figs. 1 and 2).
• the member 19 is additionally provided with an outwardly extending arm 111 terminating in a depending finger 112 adapted for engagement with a stop 113 at the end of a shallow groove 114 formed on the surface of plate 105.
• the arrangement is suitably such that when the flexible substrate is pulled out from the half-casing to its fullest extent, then the longitudinal key slot of the tubular core support 3 will be aligned with a slot 118 in the end plate 105 enabling ready de-mounting of the flexible substrate and its replacement with an alternative flexible substrate.
• This situation is illustrated in the enlarged sectional view of the slide end of the apparatus shown in Fig. 13. As can be seen, member 19 has been pulled by the spring to the bottom of the well defined by collar 22 to engage with pawls 25.
• the apparatus is suitably provided in the. form of two co-operating half-casings which are, adapted to be latched together so as to provide a complete closure for a map or other information on the scroll.
• the second half-casing and its associated mechanism may be essentially identical to that of the first described in detail and illustrated herein.
• the second half-casing may have a tubular core support to which the opposite marginal edge of the flexible substrate is permanently joined.
• a plurality of maps each in their own protective half-casing may be kept in a store, a selected map so stored on its associated half-casing being coupled by its free marginal edge to the T-shaped slot of the tubular core support 3 of the half-casing described above and illustrated in the accompanying drawings for display of the map.
• Fig. 17 illustrates a modified arrangement in which a map or other flexible substrate is provided in a scroll form, in accordance with the present invention in a single casing.
• the substrate is shown at- 27 and has a free end 28 provided with a plastics moulded edge for strength with an integral tab 29 for ready pulling of the substrate 27 from casing 30 which is suitably provided with a relatively narrow slot of width corresponding to or slightly less than the thickness of the edge 28.
• Tab 29 can suitably be formed as a ring, as shown, and a tab 31 formed integrally with the casing 30 on the side opposite the slot so that the map or chart may be hung up by the free end, the casing .then being brought downwardly to reveal so much of the chart as required.
• a tubular core support may have a pair of tube end members 5 and 6 as in the first illustrated embodiment, an end member 19 being associated with the tube end member 6 and having a plurality of teeth for engagement with a cooperating pawl.
• a slide member 126 At the axial end of the casing of the Fig 17 scroll has a slide member 126 which may be generally similar in configuration and operation to the slide member 26 of the first embodiment. It will be understood that the scroll map illustrated schematically in Fig. 17 will have a longitudinal key slot in exactly the same way as in the first embodiment (so that no detailed description is deemed necessary) adapted to receive and to key with a complementary edge member extending along a marginal edge of the flexible substrate- 27.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Mathematical Physics (AREA)
• Business, Economics & Management (AREA)
• Educational Administration (AREA)
• Educational Technology (AREA)
• General Physics & Mathematics (AREA)
• Toys (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

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• 1987
  • 1987-09-25 WO PCT/GB1987/000681 patent/WO1988002529A1/en not_active Application Discontinuation
  • 1987-09-25 EP EP19870906302 patent/EP0283499A1/de not_active Withdrawn
• 1988
  • 1988-09-25 GB GB8812446A patent/GB2209424A/en not_active Withdrawn

Non-Patent Citations (1)

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