U.S. patent number 3,899,229 [Application Number 05/391,962] was granted by the patent office on 1975-08-12 for container for tape cassettes.
This patent grant is currently assigned to IDN Inventions and Development of Novelties AG. Invention is credited to Peter Ackeret.
United States Patent |
3,899,229 |
Ackeret |
August 12, 1975 |
Container for tape cassettes
Abstract
A container for storing tape cassettes and including a case with
an open front, a slide for endless drawer which fits into and
slides out of the case, a spring biasing the drawer outwardly, a
push button latch releasably retaining the drawer in closed
position within the case, a retaining stop limiting outward
movement of the drawer from the case, the drawer being cut away to
allow the tape cassette to be manually gripped and removed from the
drawer while the drawer extends partially from the case, the case
having exterior slot and socket dovetail tracks for stacking
adjacent cases one on the other and retaining adjacent cases side
by side, the tracks being closed at the open front of the case to
permit assembly and disassembly only in one direction.
Inventors: |
Ackeret; Peter (Kusnacht,
CH) |
Assignee: |
IDN Inventions and Development of
Novelties AG (Lenzerheide, CH)
|
Family
ID: |
4388973 |
Appl.
No.: |
05/391,962 |
Filed: |
August 27, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Sep 6, 1972 [CH] |
|
|
013065/72 |
|
Current U.S.
Class: |
312/9.57;
G9B/23.016; 312/111; 206/387.12 |
Current CPC
Class: |
G11B
23/0233 (20130101) |
Current International
Class: |
G11B
23/023 (20060101); A47b 088/00 () |
Field of
Search: |
;312/10,12,111,234.1,234.4,319,330,350,244,345 ;260/387
;220/94R,23.4 ;248/224,225,366 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Mitchell; James C.
Attorney, Agent or Firm: Palmatier; H. Dale Haller; James
R.
Claims
I claim:
1. A container for a tape cassette, the container comprising a case
with an open front, a cassette-carrying slide mounted in the case
for sliding movement between an outer, open position in which a
cassette can be placed upon or withdrawn from the slide and an
inner closed position, the slide being open sided and including a
base plate having an upper, cassette-supporting surface and having
front portions adjacent the open front of the case, means retaining
a tape cassette on the base plate, a spring continuously biasing
the slide towards the open position, stop means defining the open
position and restraining further movement of the slide out of the
case, and releasable catch means movable between a locking position
for holding the slide in the closed position and a release position
permitting the slide to move outwardly through the open end of the
case into the open position under the influence of the spring; the
slide having open and unobstructed space at the open sides thereof
and adjacent the front portion of the base plate to entirely expose
edges of a cassette supported on the base plate so that a cassette
supported on the base plate can be securely grasped by its exposed
side edges and removed therefrom.
2. A container according to claim 1 wherein the slide has a front
wall cooperating with the open end of the case to completely close
the open end when the slide is in its inner, closed position.
3. A container according to claim 1 wherein the base plate is
provided with a slot which extends in the direction in which the
slide is movable and in which engages a guide projection on the
case for guiding the slide.
4. A container according to claim 2 wherein the slide has a rear
wall with at least one cassette-engaging inner surface which slopes
upwardly and rearwardly away from the base plate and wherein the
case is provided with an upper wall having a lower face with guide
ribs which extend in the direction of movement of the slide and
which are arranged to urge a cassette into seating location on the
base plate as the slide is closed.
5. A container according to claim 1, wherein the slide and the case
are provided with an inter-engaging pin and slot, one on the slide
and the other on the case, the slot extending in the direction of
movement of the slide, and the ends of the slot forming stops for
the pin for the purpose of limiting movement of the slide.
6. A container according to claim 5, wherein the pin has at its
forward end an inclined surface which facilitates introduction of
the slide into the case.
7. The container according to claim 1 wherein the base plate is
provided with a pair of tabs aligned normal to the direction of
slide movement for engagement in openings in the winding cores of a
cassette.
8. A container according to claim 1 wherein the catch means
includes a cantilevered leaf spring extending forwardly in the
direction of movement of the slide with its forward end having a
tooth arranged to engage a recess, and a push button movable to
disengage the tooth from the recess.
9. A container according to claim 8, wherein the leaf spring, the
push button, and the tooth are integral with the slide or the
case.
10. A container according to claim 8, wherein the leaf spring, the
push button and the tooth are integral with the slide and the
detent is formed by an aperture in the case.
11. A container according to claim 1, wherein the case has external
guide tracks designed to slide into other tracks for the purpose of
detachably connecting the case to an adjacent like case to form a
block.
12. A container according to claim 11, wherein the guide tracks are
of dovetail form.
13. A container according to claim 1, wherein the spring is a coil
spring formed about a notional core of elongate cross section.
14. A container according to claim 1, wherein the spring is a
cylindrical coil spring and the case has spring guides to prevent
the spring from buckling.
15. A container for a tape cassette comprising a case with top,
bottom and side walls, a rear wall, and an open front; a
cassette-carrying slide mounted in the case for sliding movement
through the open front between an outer, cassette-exposing position
and an inner, closed position, the slide having a base plate with a
cassette-supporting surface and means retaining a cassette on the
base plate; the container including an interior guide comprising a
pair of elongated, closely spaced, parallel guide projections and
means defining a pair of guide projection-receiving slots provided
on confronting surfaces of the base plate and case, one pair on the
base plate and the other pair on the case with the projections in
sliding engagement with the slots, the guide projections and slots
extending in the direction of sliding movement of the slide and
positioned approximately midway between the side walls of the case,
the projections and slots being mutually configured to restrain
movement of the slide transversely of the direction of sliding
movement and co-acting to guide the slide smoothly into and out of
the case.
16. The container of claim 15 wherein the interior guide track
provided on the bottom wall of the container includes a
longitudinal reinforcing guide plate provided on the latter wall in
alginment with the dove-tail track on the other surface of the
wall, and wherein the latter dove-tail track is formed into that
portion of the bottom wall reinforced by the guide plate.
17. The container according to claim 15 wherein a spring extends
along the interior guide and biases the slide to open position, and
the case having a spring guide groove of segmental cross section in
one of said walls and extending along said interior guide, the
groove confining the spring against transverse movement as the
slide moves between inner and outer positions.
18. A container for a tape cassette comprising, a case with top,
bottom and side walls, a rear wall and an open front with exterior
surfaces of both the top and bottom walls each having a pair of
parallel, stacking dove-tails along their edges adjacent the side
walls and a central stacking dove-tail approximately midway between
the side walls and parallel to the pair of dove-tails; a
cassette-carrying slide mounted in the case for sliding movement
through the open front between an outer, cassette-exposing position
and an inner, closed position, the slide including a base plate
with an upper, cassette-supporting surface and means retaining a
cassette on the base plate; mating slide tracks provided on
confronting surfaces of the base plate and bottom case wall and
extending in the direction of sliding movement of the slide, the
slide track on the bottom case wall being aligned with and on the
opposite side of the bottom case wall from the central dove-tail;
the central dove-tail being engageable with the central dove-tail
of identical abutting containers for mutual support between
containers against warping of adjacent cases to thereby assure
smooth, sliding movement of the slides into and out of the
cases.
19. The container of claim 18 wherein the base plate includes an
elongated, slot-shaped recess having confronting inner edges
slidably engaging outer longitudinal edges of the guide plate.
20. A container according to claim 11 wherein a spring guide groove
of segmental cross section is accommodated within the said guide
tracks.
21. A container accoridng to claim 7 including a label having
spaced slots and which can be placed upon the base plate with the
tabs extending through the slots to restrain unintentional removal
of the label.
22. A container according to claim 21 wherein the label is made of
stiff flat material and has two resilient tongues that can be
snapped in under holding lugs provided on the slide.
23. A container according to claim 21, wherein matter printed on
one surface of the label is repeated upside down on the other side
of the label.
24. A container according to claim 11, wherein auxiliary guide
tracks are provided close to the edges of the case and parallel to
the main guide tracks.
25. A container according to claim 24, wherein the main guide
tracks are of dovetail cross section and the auxiliary guide tracks
are of half dovetail cross section.
26. A container according to claim 11, wherein the tracks do not
extend over the whole length of the case.
27. A container according to claim 24, wherein the auxiliary tracks
are shorter than the main tracks.
28. A container according to claim 11, wherein the guide tracks
extend from the rear edge of the case and stop short of the front
edge.
29. A container according to claim 5, wherein to facilitate rigid
stacking of containers locking pins are provided on the case for
engaging an end of the said slots.
30. A container according to claim 11 wherein guide tracks are
provided in adjoining exterior sides of the case which extend
parallel to the direction of movement of the slide.
31. A container according to claim 30, wherein none of the guide
tracks extend the full length of the case and all of the tracks
stop short of the front face of the case.
32. A container according to claim 11, and a mounting bracket
having guide tracks adapted to engage and fit with at least some of
the guide tracks on the case.
33. A container according to claim 11, and a carrying handle
adapted to engage and fit onto at least some of the guide tracks on
the case.
34. A container according to claim 1, wherein the case is formed in
one piece to accommodate several slides arranged above, next to or
behind one another.
35. A container for a tape cassette, comprising:
a case having top, bottom and side walls, a rear wall and an open
front;
a cassette-supporting slide slidable into and out of the open front
of the case, between an outer, cassette-exposing position and an
inner, cassette-storing closed position, the slide having a bottom
base plate with an upper, cassette-supporting surface, and a front
wall on the slide adjacent the open front of the case and
confronting a long edge of the cassette, the slide being free of
obstructions preventing substantially free one-hand access to short
edges of an exposed tape cassette lying on the base plate;
a spring positioned between confronting surfaces of the slide and
case and biasing the slide toward its open position;
stop means defining the outer position of the slide and retaining
the slide at least partially within the case;
a slide-orienting guide comprising guide projections and
projection-receiving slots between the bottom wall of the case and
a confronting surface of the slide and extending in the direction
of sliding movement to guide the slide with respect to the case and
to restrain the slide from movement in any transverse direction
relative to such sliding movement; and
a releasable catch mounted between the slide and the case, the
catch including a tooth and a tooth-receiving recess provided one
on the slide and the other on the case, and exteriorly accessible
means operable with one hand for biasing the tooth out of the
recess to permit the slide to move into its open position.
36. A container for a tape cassette, the latter having long and
short side edges with a tape exposed at a long edge, the container
comprising:
a. an integral case having substantially closed top, bottom and
side walls, a substantially closed rear wall and an open front, the
side walls being spaced to accommodate therebetween the long edge
of a tape cassette;
b. an integral, cassette-supporting U-shaped slide slidable into
and out of the open front of the case between an outer,
cassette-exposing position and an inner, cassette-storing position,
the slide having a bottom base plate with an upper,
cassette-supporting surface and having front and rear walls at ends
of the base plate and spaced to receive a tape cassette
therebetween with the long, tape-exposing edge of the cassette
lying along the front wall, the width of the base plate being less
than the width of the front wall and the slide being free of
obstructions preventing free access to opposed short edges of a
cassette, which are exposed when the slide is in its outer
position;
c. a stop comprising abutting surfaces integrally formed into the
slide and case, the stop defining the outer position of the slide
and retaining the slide at least partially within the case;
d. a coil spring mounted within the case between confronting
surfaces of the rear walls of the slide and case with its axis
parallel to the axis of sliding movement of the slide to bias the
latter into its outer position;
e. elongated, mating guides formed into confronting surfaces of the
base plate and bottom wall of the case and oriented parallel to the
direction of sliding movement of the slide to restrain the slide
from movement transverse to the direction of sliding movement into
and out of the case; and
f. a releasable, spring-loaded catch mounted between the slide and
the case, the catch comprising a tooth and a tooth-receiving recess
formed integrally one into the slide and one into the case, and
exteriorly accessable escape means for biasing apart the tooth and
tooth receiving recess to permit the slide to move into its outer
position; whereby a cassette supported on the slide may be gripped
with one hand along its opposed, short edges and, without changing
the grip, may be removed from the container and inserted into a
play-back apparatus.
37. The container of claim 36 wherein the front walls are
continuously joined solely by the base plate and wherein the front
wall is dimensioned to substantially close the open front of the
case when the slide is in its inner, cassette-storing position.
38. The container of claim 37 wherein the slide includes an
integral, forwardly cantilevered leaf spring bearing the tooth and
wherein the escape means comprises a push button formed on the
forward end of the leaf spring and forming part of the front wall
of the slide.
39. A container for a tape cassette, comprising a case with an open
front; a cassette-carrying slide mounted in the case for sliding
movement through the open front between an outer, open,
cassette-exposing position and an inner, closed, cassette-storing
position, the slide including a base plate with a
cassette-supporting surface and means retaining a tape cassette on
the base plate; stop means defining the open position and retaining
the slide at least partially within the case; a spring biasing the
slide toward its open position; and the slide and case having a
latch mechanism including latch and keeper elements of which one is
movable by one hand relative to the slide and case to release the
latch mechanism and allow the slide to move into its open position
under the influence of the spring; the slide and case being so
constructed and arranged as to present side edges of a cassette
adjacent the front wall for grasping with one hand when the slide
is moved to its open position.
40. The container of claim 39 wherein sides of the slide are open
and unobstructed adjacent the front wall for the full height of the
front wall, facilitating grasping a cassette with one hand.
41. The container of claim 39 wherein the rear wall of the cassette
includes a cassette-confronting surface which slopes obliquely away
from the base plate to allow a cassette to tilt away from the base
plate when the container is oriented for vertical sliding movement
of the slide.
42. A container for a tape cassette comprising a case with an open
front; a cassette-carrying slide mounted in the case for sliding
movement through the open front between an outer, cassette-exposing
position and an inner, closed, cassette-storing position, the slide
including a base plate with a surface supporting the bottom surface
of a cassette and a spring biasing the slide into its open
position, means retaining a cassette on the slide; stop means
defining the outer slide position and retaining the slide at least
partially within the case; and releasable catch means for holding
the slide in its closed position; the base plate having a recess
extending inwardly toward its center from at least one edge to
expose a portion of the bottom surface of a tape cassette and
enable the top and bottom of a cassette on the slide in the outer
position to be grasped with one hand and removed from the
container.
Description
The invention relates to a container for accommodating a tape
cassette.
Various forms of container for tape cassette are known or have been
proposed. The known containers all suffer from the disadvantage
that they are very awkward to manipulate and/or that they are very
complicated.
SUMMARY OF THE INVENTION
The invention aims at providing a tape cassette container that does
not suffer from the above-mentioned disadvantages, is simple to use
and can be produced in a particularly simple manner. It is intended
for example that the cassette should be capable of being inserted
into the container or removed therefrom with only one hand, which
feature can be of importance when operating a tape recorder in a
moving car.
According to the present invention a container for a tape cassette
comprises a slide or endless slidably mounted in a case for
movement between an outer, open position in which a cassette can be
placed in or withdrawn from the drawer and an inner, closed
position, biasing means biasing the drawer towards the open
position, stop means defining the open position, and releasable
catch means for holding the drawer in the closed position, the
sides of the drawer being at least partially cut away so that a
cassette contained in the drawer can be grasped and removed
therefrom.
The container can be so constructed that it is possible to place a
cassette in the drawer which is in the outer position and to move
the drawer into the case by finger pressure.
All that is required for removing the cassette is to operate the
catch, whereupon the drawer is moved out of the case by the biasing
means. The cassette can then be removed from the slide with two
fingers and can be placed in a play-back apparatus.
Preferably the drawer comprises a front wall and a rear wall
interconnected by a base plate.
In this arrangement the front wall of the drawer preferably also
serves to close off a narrow side of the case. This results in
simplification of the container, and in addition a surface for
carrying written matter is available, this surface being presented
to the user when the cassette is being fitted into or removed from
the container.
The base plate of the drawer may be provided with a slot which
extends in the direction in which the drawer is movable and in
which engages a guide projection on the case for guiding the
drawer. This can result in a particularly simple construction of
the container combined with saving in material, and the sides of
the drawer can be completely omitted so that a cassette reposing in
the drawer is particularly readily accessible.
Advantageously, the container may also be so designed that the rear
wall of the drawer has at least one inner surface which slopes away
from the base plate, and the case may be provided, on the inner
face of the wall opposite the base plate, with guide ribs which
extend in the direction of movement of the drawer and which are
arranged to provide location for a cassette disposed in the
container.
In this way the introduction of a cassette into the container and
its removal therefrom are considerably facilitated by the use of
simple means. The guide ribs can be arranged to prevent the thicker
part of a standard recording-tape cassette from striking the front
edge of the case with its own edge when it is being inserted into
the case. On the other hand, cooperation between the inclined
surface and the guide ribs results in the cassette tilting away
from the base plate out of the drawer when the container is
disposed vertically, so that the cassette can be more easily
removed. This can be of particular importance for example when
several containers with cassettes in them are so arranged on a
central bracket in a car such that the direction of movement of the
drawers are vertical.
The drawer and the case can be provided with an interengaging pin
and slot, the slot extending in the direction of movement of the
drawer and the ends of the slot forming stops for the pin for the
purpose of limiting movement of the drawer. In this way a
particularly simple form of stop for limiting movements of the
drawer is obtained.
If the pin is chamfered at its forward edge, this enables the
drawer to be inserted into the case in a particularly easy manner.
When the drawer is being fitted to the case, the wall of the case
in the vicinity of the pin and slot is deformed outwards by the
inclined surface of the pin, so that the latter can be readily
introduced into the slot.
The base plate can be provided with tabs for engagement in openings
in the winding cores of a cassette.
In a particularly preferred form of construction of the container,
the catch means includes a leaf spring extending in the direction
of movement of the drawer and having at or near its free end a
tooth arranged to engage a detent or recess, there also being
provided a push button by means of which the tooth can be
disengaged from the detent or recess. The push button may be let
into the front of the drawer or one of the side walls of the
case.
The catch means so constructed is simple, occupies little
additional space in the case and can be actuated by the use of only
one finger.
The leaf spring, push button and tooth are preferably integral with
the drawer or the case and conveniently are of a plastics
material.
In particular, the leaf spring, push button, and tooth are
conveniently integral with the drawer, and the detent is formed by
an aperture in the case. In this way a construction of container is
obtained which can be particularly easily produced and which can be
made in plastics material by injection-molding and by using
relatively simple molds, the container consisting of three simple
parts, namely, the case, the drawer and the spring biasing means
which can be assembled by simply inserting one into the other.
It is also possible to provide the case with connecting elements
for detachably connecting it to an adjacent similar container to
form a block, these connecting elements taking the form for example
of guide tracks facilitating sliding insertion. In this way several
containers can be interconnected in a simple manner, and this
facilitates accommodation of the containers.
One slide track preferably takes the form of an elongate projection
having side faces chamfered to dovetail form and the other track
can take the form of a complementary recess, the two tracks
extending parallel to the direction of movement of the slide, and
the recess being formed in the projection on the case guiding the
slide.
An arrangement of this kind results in additional saving in
material when producing the container, and at the same time the
wall of the case is reinforced by the connecting elements;
furthermore, when a number of containers are stacked, the wall of
one case is forced to occupy a position parallel to that of the
adjacent container and this is of advantage in promoting movement
of the slide in the guide.
The spring for moving the slide out of the case may take the form
of a coil spring formed about a notional core of elongate cross
section. Alternatively, in view of the production costs of such a
spring, it is, of course, more convenient to use a normal coil
spring of circular cross section together with provision for
preventing buckling failure of the spring. In a further development
of the invention, this is brought about by forming a guide channel
of segmental cross section, or by providing a similar guide channel
on the inner side of the housing lying opposite the base plate, or
by employing both these features together. Neither of these
solutions necessitates additional space and the material
consumption is, in contrast, decreased.
It is desirable for it also to be possible to accommodate in the
container an index of contents. For this purpose there may be a
label inserted in the drawer and safeguarded against unintentional
removal, preferably by stud-like mountings, which label can be read
when the container is either standing or lying flat as soon as the
drawer is opened and the cassette is removed.
As mentioned above several containers may be joined together to
form a block, for which purpose joining means of the tongue and
groove or dovetail type are provided. If a large number of
containers are to be joined together then this type of simple guide
may no longer be adequate to impart sufficient stability to the
block. Auxiliary tracks may therefore be provided, adjacent to a
main track which defines the positioning, as close as possible to
the margin of the large external surface of the case, which
auxiliary tracks, with skilled construction -- which is yet to be
explained, in detail -- may be provided without causing undue
complications in the production of the case by injection molding.
When once attached, containers may be safeguarded against
unintentional dismounting in a manner similar to that described
above for the limitation of the drawer movement.
A widening of the possibilities of block formation is produced if
the narrow lateral surfaces of the container housing are provided
with guide tracks or grooves, since in this case adjacent
containers may also be joined together in additional directions. It
is naturally also possible to provide means permitting vertical and
horizontal stacking.
The guide tracks or grooves can furthermore be used to join an
angular mounting element with the container or a block of
containers, and the mounting element can be attached in various
ways, not only to a wall, to shelves or the like, but also, for
example, to the dashboard of a motor vehicle. In a similar manner
the guide means on the uppermost container can be used to mount a
carrying handle by means of which a stack of containers may be
comfortably carried.
Finally, several containers can be joined during manufacture to
form a greater block; for example, five drawers may be provided one
above the other in a shelf-like block housing. Even though the
stability of such a block will be no greater than that of five
individual containers rigidly joined together, there is
nevertheless a reduction in costs and a saving in material, because
the housing walls associated with the several drawer guides no
longer need to be made of double thickness. However, the guide
means for attaching further containers or further block housings
may be provided in a similar manner as described above. In such a
large container the slides may lie above one another, adjacent to
one another, or back to back, and there are of course also
combinations of all these possibilities.
The combination of the aforementioned features results in a
container which provides operating convenience with economy of
material and a small number of individual parts. Assembly work is
also simplified.
BRIEF DESCRIPTION OF DRAWINGS
Further details of the invention are provided in the following
description of some embodiments illustrated in the annexed
drawings, in which:
FIG. 1 is a perspective illustration of the container in separated
condition.
FIG. 2 is a section through part of the catch means on line II of
FIG. 1, but with the drawer inserted in the case.
FIG. 3 is a view of the container with the drawer fitted in the
case but in its outer position, a recording-tape cassette being
placed on the drawer.
FIG. 4 is a section on line IV--IV of FIG. 3.
FIG. 5 shows a section corresponding to that of FIG. 4, but with
the drawer fully inserted into the case.
FIG. 6 is a partial section on line VI--VI of FIG. 3 and on a
larger scale, the drawer, located in its inner position, being
shown by dash-and-dot lines.
FIG. 7 is a section on line VII--VII of FIG. 3, with the spring
omitted and with portions of background also omitted for clarity of
detail.
FIG. 8 is a section through a further form of the catch means.
FIG. 9 is a perspective view of that part of the case that
cooperates with the catch means shown in FIG. 8.
FIG. 10 is a section through another form of catch means.
FIG. 11 is a perspective view of the form of retaining device shown
in FIG. 10.
FIG. 12 is a perspective view of a modified form of case with the
drawer removed.
FIG. 13 is a transverse section view of the case of FIG. 12 and
taken on a section line as indicated at 13 in FIG. 15.
FIG. 14 is a longitudinal section view of the case of FIG. 12 with
the drawer assembled therewith.
FIG. 15 is a section view similar to FIG. 14 but with the drawer
shown in open position.
FIG. 16 is a top plan view of the case and drawer with the index
card inserted.
FIG. 17 is a detail section view taken at line 17 in FIG. 16.
FIG. 18 illustrates details of the base and lugs of the drawer
without the cardboard label, and includes FIG. 18a which is a
detail section view taken approximately at line XVII-- XVIII in
FIG. 16, and also includes FIG. 18b which is a detail elevation
view of the portions of FIG. 18a as viewed from the left in FIG.
18a.
FIG. 19 is a detailed view of the insert card.
FIG. 20 is a perspective view of the insert card assembled into the
open drawer of the container.
FIG. 21 is a perspective view similar to FIG. 20, but showing the
drawer opening in a vertical position.
FIG. 22 is a perspective view of two containers about to be joined
together in a manner different from the arrangement shown in FIG.
7.
FIG. 23 is a cross section similar to FIG. 7 but following the line
23 of FIG. 22.
FIG. 24 is a rear perspective view of an additional modified form
showing two cases in partial assembly.
FIG. 25 is a rear elevation view of the cases of FIG. 24.
FIG. 26 is a front perspective view of the cases of FIG. 24 shown
in stacked and side-by-side relation.
FIG. 27 is a perspective view of a mounting bracket.
FIG. 28 is a perspective view of the mounting bracket in partial
assembly with a stack of cases.
FIG. 29 is an elevation view showing the mounting of the bracket to
a wall.
FIG. 30 is a perspective view of a slightly modified form of the
bracket.
FIG. 31 is a perspective view of a stack of cases and a carrying
handle partially assembled therewith.
FIG. 32 is a perspective view of the carrying handle fully
assembled with a stack of cases.
FIG. 33 is a perspective view of a slightly modified form of
carrying handle for a block of cases.
FIG. 34 is a perspective view of a single case with a multiplicity
of drawer-receiving compartments.
FIG. 35 is a perspective view of another form of case with a
multiplicity of drawer compartments oriented in stacked and
side-by-side relation.
FIG. 36 is a perspective view of a case with a multiplicity of
drawer compartments arranged in back-to-back relation and
illustrating one of the drawers at the rear of the case in an open
position.
DETAILED DESCRIPTION OF INVENTION
The container illustrated in FIGS. 1 to 7 comprises a case 1, a
slide or endless 2, and a spring 3. The case 1 is rectangular and
flat, and matches the shape of recording-tape cassette 4 (FIG. 3).
The drawer 2 has rear wall 5 which is connected to a front wall 7
by a base plate 6. The base plate 6 is provided with two tabs 8
which, as seen in FIG. 3, are intended to engage in openings in the
winding cores of the cassette 4 and to prevent the tape from
unwinding in the cassette. As can be seen in particular from FIG.
1, the base plate 6 has a slot 10 which extends in the direction of
movement of the drawer 2 and in which a guide projection 11 on the
case 1 can engage. As seen from FIG. 7 the edges of the slot 10 and
of the guide projection 11 have interengaging ridges 12 and 13
which prevent the drawer 2 from lifting away from the wall of the
case 1. As can be seen in particular from FIGS. 1 and 6, the case
has two slots 14 which extend in the direction of movement of the
drawer 2. Rectangular pins 15, formed on the drawer 2, engage in
the slots 14. Together with the pins 15, the slots 14 forms means
for limiting the movements of the drawer 2 in the case 1 between an
inner, closed position, in which the front 7 of the case 1 is
closed by the front wall of the drawer, and an outer, open
position, in which a cassette 4 can be placed on or removed from
the drawer 2. As seen from FIG. 6, the pins 15 have inclined faces
16 at the front as considered in the direction of insertion. The
inclined faces 16 serve to facilitate the initial assembly of the
drawer 2 in the case 1. Thus when the drawer 2 is inserted into the
case 1, the inclined faces 16 deform the wall of the case 1 so that
the wall moves away from the base plate 6 of the drawer, and the
base plate may also be deformed slightly. As soon as the pins 15
move into the slots 14, they snap in and form the above-mentioned
stop which prevents further movement of the drawer 2 out of the
case 1.
As can be seen from FIGS. 1 and 4, the rear wall 5 of the drawer 2
has ribs 17 which have surfaces 18 that slope downwardly away from
the base plate 6. Also, on the inner face of that wall of the case
1 opposite the base plate 6, the case has guide ribs 20. As shown
in FIG. 3 the distance separating the guide ribs 20 is somewhat
greater than the length of the thicker portion of the cassette 4,
as measured transversely of the direction of movement of the
drawer, which thicker portion is for placing on the sound head of a
tape apparatus. Also, the dimension a (FIG. 4), to the extent of
which the guide 20 projects from the wall of the cassette 4, is
somewhat greater than the dimensional increase b of the thicker
portion 21 of the cassette 4, as compared with the rest thereof. As
will also be seen from FIG. 4, the guide ribs 20 are somewhat
shorter than the wall of the case 1, so that they do not extend to
its edge. Furthermore, each of the ribs is chamfered at that of its
ends disposed near the mouth of the case 1.
The guide ribs 20 facilitate introduction of the cassette 4 into
the case 1. They hold the cassette 4 at such distance from the wall
of the case 1, that the thicker portion 21, when introduced into
the case 1, cannot strike the edge of the wall on which the guide
ribs 20 are provided. If, on the other hand, as shown in FIG. 4,
the drawer is moved upwards while the container is in the vertical
position, the cassette 4 slopes away from the base plate 6 of the
drawer 2 under the effect of the inclined surfaces 18. As this
happens, the cassette is supported at the upper ends of the guide
ribs 20, with the result that the lower edge of the cassette,
presented to the base plate 6, is urged towards the base plate.
Thus, the inclination of the cassette, facilitating its removal
from the drawer, is increased. FIG. 5 shows the position of the
cassette in the container when the drawer 2 is pushed into the case
1. In this position, the spring 3 is compressed between the end
wall 5 of the cassette and the wall of the case 1.
As shown in particular in FIGS. 1 and 2, catch 19 for holding the
drawer 2 in the inner position in the case 1 includes a leaf spring
22 which is formed integrally with the drawer 2 and the flat face
of which carries a tooth 23 near its free end, which tooth is for
engagement in an aperture 24 in the case. Connected to the tooth is
a push button 25 which extends laterally from the leaf spring 22 on
that side thereof remote from the tooth 23 and is disposed in the
same plane as the front wall 7 of the drawer 2. In the present
construction, the leaf spring 22, the push button 25 and the tooth
23 are produced integrally with the drawer 2 and are of a plastics
material by injection molding.
As also shown in FIG. 2, the tooth 23 has an inclined face 9. When
the drawer 2 is pushed into the case by the application of, for
example, finger pressure to the front wall 7, the spring 22
incorporating the push button 25 is deflected by the inclined
surface 9 when the tooth 23 strikes the wall of the case 1, so that
the tooth 23 is able to snap into the incision 24. When the
container is to be opened for the purpose of removing or inserting
a cassette, all that is needed is to apply finger pressure to the
push button 25. The force that acts laterally on the spring 22
causes the latter to deflect to the right, as viewed in FIG. 2, so
that the tooth 23 slides out of the incision 24. The drawer 2 can
then be moved out of the case 1 by the spring 3 until the pins 15
strike the ends of the slot 14. In this position, illustrated in
FIGS. 3 and 4, the cassette 4 can be removed from the
container.
The case of the container shown in FIGS. 1 to 7 is provided with
connecting elements for detachably connecting the container to an
adjacent similar container to form a block, these connecting
elements taking the form of guide tracks designed to be slid one
into the other. As seen from the illustration in the drawing and
particularly that of FIG. 7, one of the guide tracks takes the form
of an elongate projection 26 having side faces 27 chamfered to
dovetail form. The projection 26 is intended to be pushed into a
recess 28 having a complementary cross section. The recess 28 and
the projection 26 are disposed parallel to the direction of
movement of the drawer 2 in the case 1. As shown in FIG. 7 the
recess 28 is formed in the guide projection 11 on the case 1. This
projection serves to guide the drawer 2. FIG. 7 illustrates two
containers with their cases 1 interconnected. For the sake of
clarity, one of the conainers is shown without a drawer 2 therein.
It will be appreciated that not just two, but a large number of
containers, can be interconnected in this way.
From the figures described so far it can be seen that the spring 3
is a coil spring with a somewhat flattened cross section. Instead
of using a spring of this shape, a leaf spring could be employed;
another possible solution is the insertion of a foam plastics block
spring. It is, however, preferable to use a normal coil spring of
circular cross section, i.e., a cylindrical coil spring. This
necessitates safeguards against buckling of the spring, however.
Such an arrangement is now described with reference to the FIGS. 12
to 15.
FIGS. 8 to 11 show further possible forms of the drawer catch.
Referring to FIGS. 8 and 9, the spring 22' of the catch 19' is not
arranged with its face parallel to the plane of the base plate 6'
as in FIG. 1, but at right angles thereto. The mode of operation of
the retaining device, which in addition to the spring 22' includes
a tooth 23' and a push button 25', is the same as that already
described. The tooth 23' is intended to engage in an incision 24'
in a case 1' illustrated in FIG. 9. The parts 22', 23' and 25' may
be made integrally with a drawer 2' in the manner previously
described, and are preferably of plastics material.
FIGS. 10 and 11 illustrate a retaining device 119 in which a spring
122 with a tooth 123 and push button 125 is provided on the case
101, spring, tooth and push button in fact being produced
integrally with the case. The drawer 102 movable in the case 101
has a lip 124 having an inclined surface 126 designed to cooperate
with the tooth 123. When the drawer is inserted, the inclined
surface 126 pushes the tooth 123 away so that the latter can snap
into position behind the lip 124. Pressure applied to the button
125 causes the spring 122 to deflect to the left, as seen in FIG.
11, so that the tooth 123 releases the lip 124 thus the drawer 102
to enable the latter to move out of the case 101 under the action
of a spring, not illustrated.
FIG. 12 illustrates a case 1 with the spring 31 but without the
drawer, while FIG. 13 is a cross section along the line "13" of
FIG. 15; FIGS. 14 and 15 are a semi-schematic illustration of the
container closed (FIG. 14) and opened (FIG. 15) drawer. As before,
the case 1 has a flanged guide projection 11 while the drawer 2 has
the corresponding guide slot 10 of complementary shape on its
underside. The guide projection 11 is now provided on its surface
facing the drawer with a segment-shaped groove 30, on which the
cylindrical coil spring 31 is capable of being supported; according
to experience such a guide is an adequate safeguard against
buckling. As an alternative, or, as in the embodiment illustrated,
in addition, it is also possible to provide in the upper side of
the case, i.e., in the cover, in the region of the guide track 26,
a groove or a channel of segmental cross section for additional
lateral support of the spring. Since the guide track which is
provided for stacking several containers requires a thickening of
the case cover in this region, a decrease in this part of the cross
section of the cover by the groove 32 can be accommodated. The
upper groove 32 only extends as far as the rear edge of the portion
of the cassette 21 thickened by the dimension b (FIG. 15) when the
drawer is inserted, so that this guide groove finds sufficient
space behind it without the internal width of the housing having to
be increased.
The FIGS. 16 to 21 are representations of details concerning the
formation and attachment of an index inside the container. In this
further development of the invention a number of criteria for such
a label are taken into account: it should be simple to introduce
into the container both manually and automatically, and also be
exchangeable; it should nevertheless be safeguarded against
unintentional removal; finally, the container should, in so far as
alterations are necessary for accommodation of the label, not be
made more expensive in production.
FIG. 16 is a semi-schematic plan view of case, drawer and label,
the case 1 with the drawer 2 and label 33 inserted in the drawer.
The label (represented separately in plan view in FIG. 19) consists
of stiff paper or cardboard, but may also consist, of course, of a
flat piece of plastics material. On both sides of the label are
imprinted numbered inscription spaces, which on the other side of
the label (shown in FIG. 20) are upside down in relation to those
shown in FIGS. 17, 19 and 21. The width of the label transverse of
the direction of movement of the drawer 2 is smaller than the width
of the cassette laying above (not illustrated) so that when the
cassette is removed the label is not taken with it.
The drawer is provided with holding lugs 34, 39 which engage over
the label and safeguard it from unintentional removal. A first
holding lug 34 is injection molded to the front wall 7 of the
drawer on the inside. It is located above the slot 10 in the base
of the drawer and therefore does not hinder the deformation of the
drawer in the direction of the base plate 6. The lug 34 has a
locking surface 35 facing the label; the distance between the
locking surface 35 and the upper side of the base plate 6 is
sufficient to accommodate the thickness of the label, which is
elastically deformable in the region of a tongue 36 projecting from
the front edge of the label. FIG. 17 is a cross section along line
"17" in FIG. 16, and further illustrates the construction.
The label 33 furthermore possesses two U-shaped notches 37 (FIG.
19) so that two more tongues 38 are produced. The notches 37 are
guided over the tabs 8 when introducing the label in the drawer,
which tabs have already been mentioned above and serve to secure
the spools of a cassette placed over the tabs. On each of these
tabs 8 a further holding lug 39 is provided which is formed in a
similar manner to the lug 34 (see FIG. 18) and behind the locking
surface 40 of which tongues 38 can project. For the same reason as
was given for the lug 34, the lugs 39 are arranged over lateral
apertures in the base plate 6.
An inscription on the label may be read from the front if the
containers are lying flat (FIG. 20); if the container is upright
(FIG. 21), the label is turned around. The positioning of the label
in the drawer is effected substantially by the positive locking
between the tabs 8 and the sides of the U-shaped notches 37.
Another solution consists in that the drawer or the rear wall of
the drawer only is made transparent; the label then possesses a
bent-up side adapted to the dimensions of the rear wall, the
inscription of which may be read through the transparent rear
wall.
It has already been explained above with reference to FIG. 7 how
several containers can be stacked. It has now been stated that the
central mounting track in a not too large number of containers is
adequate; if, however, a large number of containers are to be
stacked, the arrangement which is described in the following with
reference to FIGS. 22 and 23 is recommended.
FIG. 22 is a semi-schematic rear view of two containers about to be
joined together, while FIG. 23 is a cross section along line "23"
in FIG. 22.
It is possible to see the two cases 1, which each possess on their
larger upper external surfaces the main guide track 26 with a
dovetail cross section, and on the underlying large external
surface the guide groove 28 which is complementary to the main
guide track. Thus far the arrangement agrees with that according to
FIG. 7. Track 26 and groove 28 do not, however, extend as far as
the front edge 41 of the housing; the groove is closed in this
region (42 in FIG. 23). The same applies to the auxiliary guide
tracks 43, 43' with the auxiliary grooves 44, 44' associated
therewith, the auxiliary tracks and grooves being shorter than the
main tracks 26 and grooves 28. In this manner the joining procedure
is simplified because the container to be inserted is first of all
laid flat and then only the main track aligned; the positioning of
the auxiliary tracks then takes care of itself. The auxiliary
tracks all have a half dovetail cross section with lateral surfaces
47, 47' which are parallel to the dovetail surfaces 27 or 27' of
the main guide track. This is therefore particularly advantageous
because the molds are not substantially more complicated for the
injection molding of the housing 1 because the surfaces 47, 47' are
parallel to the surfaces 27 or 27'. The same applies to the grooves
28 and 44 or 44'. Also, in the case of the grooves of the auxiliary
guide tracks there appear on the underside of the housing closed
areas or end walls 45, 45'. Together with the area or end wall 42
they form stops which limit the introduction movement of the two
housing 1 relative to one another. Additional space is not claimed
by the auxiliary grooves, since the cassette 21, on account of the
height required for the drawer base 6, leaves free marginal
sections inside the case which are thus utilized.
In order to prevent unintentional release of the stacked
containers, wedge-shaped projections 46 are provided which, owing
to their slope, elastically deform the base of the case during
stacking, but then spring into the slots of apertures 14 which, as
mentioned above (FIGS. 1, 3, 6), are accommodated in the base of
the housing as stops for the drawer.
FIGS. 24 to 26 illustrate how a block formation is made possible by
joining together several containers laterally. Corresponding cases
1 are shown in FIG. 24 at the moment of joining together, in FIG.
25 in rear view, and in FIG. 26 in perspective view.
The case shape according to FIGS. 22, 23 is supplemented here by
similar joining tracks and receiving grooves on the narrow sides of
the case which extend parallel to the direction of movement of the
drawer. What was stated with respect to the main guide tracks 26
and the auxiliary guide tracks concerning length similarly applies
to these elements.
The narrow sides 50, 50' of the cases are provided with a dovetail
section guide tracks 51 and with a receiving guide groove 52
complementary to the latter. Tracks and grooves begin on the rear
edges 57 and 57' but do not extend fully to the front edges 53,
53', so that in the block formation only straight continuous lines
54 between the individual containers are visible; at the same time
the end edge 55 of the track 51 forms a stop which cooperates with
the end edge 56 of the respective groove.
Safety means similar to the projections 46 in FIGS. 22 and 23 may
also be provided here as a safeguard against unintentional removal.
These safety means with associated apertures are not illustrated
again in FIGS. 24 to 26, however.
It is possible to see in FIG. 26 how a container (above left) is
introduced into an already formed block by introduction from the
front.
If a block of a plurality of containers has to be securely mounted
in a motor vehicle, a boat, or the like, it is advantageous to make
use of a mounting bracket, details of which are explained in the
following with reference to FIGS. 27 to 30.
Each of the containers forming the container block according to
FIGS. 28 to 30 has in its case 1 the main tracks 26 and auxiliary
guide tracks 43, 43' arranged on the upper side. On the underside
of each container case 1 are the guide grooves complementary to the
tracks 26, 43, 43', which grooves cannot be seen in the FIGS. 27 to
30. By this means the individual containers are joined together to
form a block of optional height.
To mount this block, for example, on a flat horizontal, vertical or
even inclined surface, the right angle bracket 60 is used. The
sides have slide-in guides on the inside and the limb 61 has
grooves which are of a complementary shape to the guides 26, 43,
43', while the limb 62 has similar slide-in guide tracks 26', 43'.
On using the limb 61 as a mounting the arrangement shown in FIG. 28
is produced, whereas if the limb 62 is used, the upright mounting
according to FIG. 29 is produced.
Both limbs also have mounting holes 63 by means of which the one
limb can be screwed onto a surface (FIG. 29) if the other limb is
engaged with a container block. If the holes 63 have chamfers for
counter-sunk screws the side engaged with the block can itself
accommodate screws.
FIG. 30 shows that the mounting bracket may have alternative
proportions; in this illustration a container block of two by four
containers is illustrated, which block is mounted by a mounting
bracket 64 with double sets of slide-in guides. Just as one of the
brackets 60, 64 may be used in mounting a container block, it is
conversely also possible to use the guide tracks on the uppermost
container case of a block to attach a handle for carrying, by means
of which a block of containers can be carried conveniently without
necessitating a case, bag or the like. This is shown in FIGS. 31 to
33.
FIG. 31 shows how a handle 71 formed like a cutaway box is pushed
onto a container block 70; the handle naturally has the receiving
grooves for the main and auxiliary guide tracks 26 and 43, 43' of
the uppermost container. For carrying, the user gets hold of the
handle as shown in FIG. 32. In the case of a block 73 of double
width, a handle 72 of double width is similarly used, according to
FIG. 33. It will be clear that different forms of handle are
conceivable.
The FIGS. 34 to 36 show that it is also possible to produce a
"large container" according to the invention which accommodated
more than one drawer. The drawers may be arranged one on top of the
other in compartments (FIG. 34), above and next to one another
(FIG. 35), or finally back to back (FIG. 36); clearly the
possibilities according to the two last-mentioned figures may be
combined.
Nevertheless, the large container can also be extended by the
above-mentioned slide guides in that individual containers or large
containers may be pushed on. It should be mentioned here that in
the instance of the container according to FIG. 35, for two
compartments lying next to each other only one main and two
auxiliary guide tracks are provided; this container can therefore
also be extended only by double containers with complementary
receiving grooves.
The invention provides a container for cassettes, especially
recording tape cassettes, which can be handled in an extremely
convenient manner. As seen from FIGS. 1 annd 3, the base plate 6 is
substantially narrower than the cassette 4 placed thereon. The
sides of the drawer are therefore omitted so that the cassette can
be readily gripped at the sides with two fingers or with finger and
thumb, so that no change of grip is required for insertion into the
play-back apparatus. Insertion of the drawer into the container by
the application of pressure to the front wall 7, and the moving of
the drawer 2 from the container by pressure on the push button 25
enable the container to be handled in a simple manner in
practically all circumstances, for example in a car, and in all
positions of the container. The container consists of two parts
made of plastics material and of a spring. The parts of plastics
material are so shaped that they can be produced in simple
operations and with simple molds by injection molding.
* * * * *