U.S. patent application number 11/033685 was filed with the patent office on 2005-08-18 for case with automatic opening.
This patent application is currently assigned to TECHPACK INTERNATIONAL. Invention is credited to Petit, Robert.
Application Number | 20050178695 11/033685 |
Document ID | / |
Family ID | 34684956 |
Filed Date | 2005-08-18 |
United States Patent
Application |
20050178695 |
Kind Code |
A1 |
Petit, Robert |
August 18, 2005 |
Case with automatic opening
Abstract
The invention in one embodiment relates to a case suitable for
packaging a cosmetic product comprising: a lid optionally including
a mirror, said lid being fitted with a first hinge element, a
bottom optionally having an inner frame integral therewith, said
lid and bottom forming a cavity intended to contain the cosmetic
product or a trough containing the cosmetic product, the bottom
being fitted with a second hinge element such that a hinge means is
formed by engagement of the first and second hinge elements so as
to allow rotation of the lid relative to the bottom along an axis
of rotation, a fastening means for fastening and unfastening the
lid relative to the bottom, wherein the case is capable of
automatic opening in such a way that the lid opens automatically
when force is exerted on the fastening means, and further wherein
the hinge is formed by two half-hinges aligned along an axis of
rotation, said half hinges including (i) a right-hand half-hinge D
including two hinge half-portions D1 and D2 which engage, and (ii)
a left-hand half-hinge G, including two hinge half-portions G1 and
G2 which engage, the hinge half-portions D1 and G1 being integral
with the lid and the hinge half-portions D2 and G2 being integral
with the bottom. Other cases and processes of manufacturing are
also disclosed herein.
Inventors: |
Petit, Robert; (Cluny,
FR) |
Correspondence
Address: |
CONNOLLY BOVE LODGE & HUTZ LLP
SUITE 800
1990 M STREET NW
WASHINGTON
DC
20036-3425
US
|
Assignee: |
TECHPACK INTERNATIONAL
|
Family ID: |
34684956 |
Appl. No.: |
11/033685 |
Filed: |
January 13, 2005 |
Current U.S.
Class: |
206/581 ;
206/235; 206/823 |
Current CPC
Class: |
A45C 13/345 20130101;
A45D 40/221 20130101 |
Class at
Publication: |
206/581 ;
206/235; 206/823 |
International
Class: |
B65D 069/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 13, 2004 |
FR |
04/00265 |
Claims
What is claimed is:
1. A case suitable for packaging a cosmetic product comprising a
lid optionally including a mirror, said lid being fitted with a
first hinge element, a bottom optionally having an inner frame
integral therewith, said lid and bottom forming a cavity intended
to contain the cosmetic product or a trough containing the cosmetic
product, the bottom being fitted with a second hinge element such
that a hinge means is formed by engagement of the first and second
hinge elements so as to allow rotation of the lid relative to the
bottom along an axis of rotation, a fastening means for fastening
and unfastening the lid relative to the bottom, wherein the case is
capable of automatic opening in such a way that the lid opens
automatically when force is exerted on the fastening means, and
further wherein the hinge is formed by two half-hinges aligned
along an axis of rotation, said half hinges including (i) a
right-hand half-hinge D including two hinge half-portions D1 and D2
which engage, and (ii) a left-hand half-hinge G, including two
hinge half-portions G1 and G2 which engage, the hinge half-portions
D1 and G1 being integral with the lid and the hinge half-portions
D2 and G2 being integral with the bottom.
2. A case of claim 1, wherein the first half-hinge is formed by
engagement of a male part and a female part, at least one of which
is carried by the hinge half-portion G1, the other of the female or
male parts being carried by the hinge half-portion G2, and wherein
the second half-hinge D includes a longitudinal connecting
component placed along the axis of rotation and thereby engaging
with the hinge half-portions D1 and D2.
3. A case of claim 2, further comprising a longitudinal, component
including an axial spring that ensures an engagement in rotation
with the opposite hinge half-portions by a first and second
anchoring means, and wherein the spring has, between ends thereof,
a pre-set angular torsion .alpha. such that when the lid is
unfastened from said lid, the angular torsion .alpha. of the spring
transfers a pre-set opening torque Co to said lid, so as to
facilitate automatic opening of the case.
4. A case according to claim 3 wherein each of the anchoring means
includes a head such that a first head is anchored to a first end
of the spring so as to engage with the hinge half-portion D1, and,
at a second end thereof, there is provided a second head anchored
to a second end of the spring engaging with the hinge half-portion
D2, the first head and the second head having therebetween the
pre-set angular torsion .alpha. when the case is closed.
5. A case according to claim 3, wherein the longitudinal component
forms an axle, a first end of the axle engaging with a first
channel formed in one of the two hinge half-portions D1 and G1
integral with the lid, and the second end engaging with a second
channel formed in one of the hinge half-portions D2 and G2 integral
with the bottom.
6. A case according to claim 5 wherein the first and second heads
engage with the first and second channels respectively by a
noncircular cross-section of the heads and the channels, or by
engagement of convex and concave elements so as to form a means of
engagement in rotation.
7. A case according to claim 6 wherein the spring is in a permanent
state of compression or axial tension along the axis of rotation,
in such a way that the first and second heads are thus maintained
in the first and second channels respectively.
8. A case according to claim 5 wherein the spring is capable of
being compressed axially, so as to be able to be compressed over a
length L1 or L2 in the first or the second channel for the purpose
of assembling the hinge, the lengths L1 and L2 corresponding to the
depth of the first and second channels respectively.
9. A case according to claim 3 wherein each of the anchoring means
includes a skirt, a first skirt being integral with the first head,
and a second skirt being integral with the second head, the first
and second skirts being coaxial, wherein at least one of the skirts
is an inner skirt, and another skirt being an outer skirt, such
that the longitudinal component forms a torsion damper, and is
simultaneously able to be compressed axially for the purpose of
assembling the hinge, and to have a pre-set angular torsion of
angle .alpha. for the purpose of forming the pre-set opening torque
Co of the lid.
10. A case according to claim 9 wherein the inner skirt or a head
integral therewith includes a shoulder forming a stop for the outer
skirt at an end thereof, so as to limit compression of the
longitudinal component or of the torsion damper to a pre-set length
L.
11. A case according to claim 3 wherein the hinge has an axial play
E along the axis of rotation between the hinge half-portions D2 and
G2 integral with the bottom and the hinge half portions D1 and G1
integral with the lid , the axial play E being in a range from
about 0.3 to about 1.5 mm, so as to facilitate the assembly of the
hinge.
12. A case according to claim 3 wherein the first half-hinge is
formed by engagement of a male part and a female part, the
engagement being over an axial distance greater than the axial play
E, and wherein one of the male or female parts is carried by the
bottom and the other of the female or male parts is carried by the
lid.
13. A case according to claim 12 wherein the female part is formed
by a first ring of diameter D1 and the male part by a second ring
of diameter D2<D1, the first and second rings being over an
angle .beta. in a range from 200.degree. to 280.degree., so as to
form the hinge without axial play E, and/or to facilitate assembly
of the first half-hinge.
14. A case according to claim 13 wherein the female part includes
at a center portion thereof a center pin of diameter D3<D2.
15. A case according to claim 3 wherein the first half-hinge
includes an auxiliary longitudinal connecting component equipped
with an auxiliary helical spring, so as to form an auxiliary axle,
and/or to provide a pre-set angular torsion of angle .alpha.,
either for bringing a contribution C'o to the opening torque of the
lid, and/or for obtaining an antagonistic torque Ca, the actual
opening torque being Co-Ca or Co+C'o-Ca, so as to impart a
particular feel when handling the lid.
16. A case according to claim 3 wherein the fastening means
comprises a clasp comprises a lateral right-hand D or left-hand G
clasp, its position on a right-hand D or left-hand G part or side
of the case being selected according to whether the case is
intended to be used by a left-handed or right-handed person.
17. A case according to claim 16 wherein the lateral clasp includes
a push-button forming a component cast in one piece with the
bottom.
18. A case according to claim 16 wherein the clasp is formed by a
lateral translation of the lid relative to the bottom along the
axis of rotation over a length at least equal to the axial play E,
such that a push-button is not included.
19. A case according to claim 18 wherein comprising a fastening
hook integral with the lid, and a nose integral with the bottom,
and wherein the hook and nose engage over a length, taken along the
direction of the axis of rotation in a range from 0.5E to 0.9E.
20. A case according to claim 18 wherein the lateral clasp is a
left-hand G clasp, the second half-hinge being a right-hand D
half-hinge.
21. A case according to claim 18 wherein the lateral clasp is a
right-hand D clasp, the second half-hinge being a left-hand G
half-hinge.
22. A case according to claim 3 wherein the bottom and the lid
include a rectilinear side forming the hinge, and wherein the case
is square, rectangular, partly round or oval in shape.
23. A case according to claim 3 wherein the hinge is formed by a
series of hinge half-portions denoted D1-D2G2-G1 or by a series of
hinge half-portions denoted D2-D1G1-G2, according to whether the
hinge includes a central part formed by the first hinge element
including contiguous half-portions D2 and G2 denoted D2G2, or by
the second hinge element including contiguous half-portions D1 and
G1 denoted D1G1, the hinge including an outer part formed by the
second hinge element including spaced out half-portions D1 and G1
or by the first hinge element including spaced out half-portions D2
and G2 respectively.
24. A process for manufacturing a case according to claim 12
comprising forming the second half-hinge, assembling the
longitudinal component, forming the first half-hinge by angularly
positioning the bottom relative to the lid optionally with an
assembly angle of about 180.degree., wherein the angular
positioning is chosen so as to facilitate free engagement of the
male part with the female part.
25. A process according to claim 24 wherein the bottom and the lid
include angular locking means so as to lock the rotation of the lid
at an angle lower than the angle of assembly.
26. A process for manufacturing a case according to claim 5
comprising forming the first half-hinge, forming the second
half-hinge by temporarily compressing the longitudinal component in
the first or second channel.
27. A process according to claim 26 further comprising compressing
the longitudinal component with at least one plate of thickness
less than about the axial play E, wherein the first half-hinge
includes an auxiliary longitudinal connecting component equipped
with an auxiliary typically helical spring so as to form an
auxiliary axle.
28. A case comprising: a lid said lid being fitted with a first
hinge element, a bottom, the bottom being fitted with a second
hinge element such that a hinge means is formed by engagement of
the first and second hinge elements so as to allow rotation of the
lid relative to the bottom along an axis of rotation, a fastening
means for fastening and unfastening the lid relative to the bottom,
wherein the case is capable of automatic opening in such a way that
the lid opens automatically when force is exerted on the fastening
means, and further wherein said opening is at an angle at least
equal to 10.degree. and/or is provided by a gap between a front
edge of the lid and a front edge of the bottom of the case in
excess of 3 mm, and further wherein said hinge does not include a
spring.
Description
CROSS-REFERENCE TO A RELATED APPLICATION
[0001] The present application claims priority to FR 04 00265 filed
Jan. 13, 2004, the content of which is incorporated herein by
reference in its entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Technical Field of the Invention
[0003] The invention relates to the field of cases intended to
contain cosmetic products or beauty products, typically make-up
powders and the like.
[0004] 2. Description of Related Art
[0005] Generally speaking, cases typically include:
[0006] a concave lid fitted with an inner mirror,
[0007] a concave bottom, typically fitted with an inner frame or
intermediate support for at least one trough intended to receive
the cosmetic product,
[0008] a hinge, constituting the connecting component between the
lid and the bottom, allowing the lid to rotate relative to the
bottom and the case to open,
[0009] a clasp or any means of fastening and unfastening the lid
relative to the bottom, in such a way as to open and close the
case, a clasp being typically of the push-button type.
[0010] A great many case embodiments are known, embodiments which
can focus on one or more of the constituent parts of the case.
[0011] As examples, the following may be cited:
[0012] FR 2 661 080 which describes a make up case with a compact
clasp,
[0013] FR 2 701 365 which describes a convertible make-up case,
[0014] FR 2 725 958 which relates to a case with combined assisted
opening and closure,
[0015] FR2 77 192 which describes a case with a swivel lid provided
with an articulation with flexible lugs,
[0016] FR2 755 352 which describes a case with assisted
opening,
[0017] FR2 755 353 which describes a case with an unfastening and
pre-opening push-button,
[0018] FR2 756 155 which describes a make-up case, typically
including a bottom, an intermediate faceplate and a lid fitted with
an inner mirror.
[0019] Also known is French patent 2 794 723 which describes a case
fitted with a pre-opening means.
[0020] One problem posed by known cases relates to the automatic
opening of the case. Opening is deemed to be "automatic" if, when
pressing manually on a part of the case intended to ensure its
opening (typically a push-button which unfastens a hook integral
with the lid) the lid opens. The opening can also be by a swivel at
a certain angle around the case hinge (generally an angle which
exceeds about 10.degree.). The purpose of the automatic opening is
to facilitate access to the contents, typically a make-up
powder.
[0021] With prior art cases, particularly with French patent No 2
794 723, there are known means to get very limited pre-opening.
This is accomplished namely by automatically obtaining an opening
angle typically below 10.degree..
[0022] But to get a wider opening, with an opening angle at least
equal to 10.degree. or a gap between a front edge of the lid and a
front edge of the bottom of the case (typically in excess of 3 mm),
it is necessary to introduce into the hinge of the case an
additional element. The additional element is typically a spring
integrated into the hinge which may be made of silicone rubber or
of an equivalent flexible spring effect plastic material, or of an
added metal. This additional element is intended to overcome the
weight of the lid and the frictional forces of the cotter pin or
pins in the hinge of the case. However, this type of device
generally has some drawbacks, above all because it considerably
complicates the assembly of the case, thereby increasing the cost
of production, and also because it does not allow easy adjustment
of the pre-opening force.
SUMMARY OF THE INVENTION
[0023] The present invention aims to obtain a case which is
relatively straightforward to manufacture and easy to assemble, and
which also allows the pre-opening of the lid to be adjusted to a
desired level. In particular, the present invention provides a case
which has been optimized such that the case permits one to adjust
and/or adapt the automatic opening of the case.
[0024] The invention in one embodiment relates to a case suitable
for packaging a cosmetic product comprising:
[0025] (i) a lid optionally including a mirror, said lid being
fitted with a first hinge element, (ii)a bottom optionally having
an inner frame integral therewith, the lid and bottom forming a
cavity intended to contain the cosmetic product or a trough
containing the cosmetic product, the bottom being fitted with a
second hinge element such that a hinge means is formed by
engagement of the first and second hinge elements so as to allow
rotation of the lid relative to the bottom along an axis of
rotation, (iii) a fastening means for fastening and unfastening the
lid relative to the bottom, wherein the case is capable of
automatic opening in such a way that the lid opens automatically
when force is exerted on the fastening means, and further wherein
the hinge is formed by two half-hinges aligned along an axis of
rotation, the half hinges including a right-hand half-hinge D
including two hinge half-portions D1 and D2 which engage, and a
left-hand half-hinge G, including two hinge half-portions G1 and G2
which engage, the hinge half-portions D1 and G1 being integral with
the lid and the hinge half-portions D2 and G2 being integral with
the bottom.
[0026] Other cases and processes of manufacturing are also
disclosed herein.
[0027] Additional objects, features and advantages of the invention
will be set forth in the description which follows, and in part,
will be obvious from the description, or may be learned by practice
of the invention. The objects, features and advantages of the
invention may be realized and obtained by means of the
instrumentalities and combination particularly pointed out in the
appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] FIGS. 1a to 3b relate to one embodiment of a case (1)
according to the invention.
[0029] FIGS. 1a and 1b are left-hand rear perspective views from
above, FIG. 1a relating to the lid (2) of the case and FIG. 1b to
the bottom (3) of the case (1).
[0030] FIGS. 2a and 2b are right-hand rear perspective views of the
bottom (3), FIG. 2a being a view from above, and FIG. 2b being a
view from below.
[0031] FIGS. 3a and 3b are perspective views from below of the lid
(2), FIG. 3a being a right-hand front view, FIG. 3b being a
right-hand rear view.
[0032] FIGS. 4a and 4b are cross-sections in two vertical offset
planes parallel to the axis (44) of a case (1) according to the
present invention. FIG. 4a is a view of a closed case according to
one embodiment of the present invention. FIG. 4b is a view of the
case showing when lateral pressure, indicated by a double arrow, is
exerted on the lid (2), so as to produce sufficient translation of
the lid relative to the bottom to unfasten the clasp (5).
[0033] FIGS. 4c and 4d are cross-section views of a longitudinal
component (6) including a spring (60) according to one embodiment
of the present invention. FIGS. 4c and 4d also include, on the
right and on the left of the cross-section views, side views which
show the presence of anti-rotation elements (612) and (622) which
between them make a torsion angle .alpha. according to one
embodiment of the present invention.
[0034] FIGS. 5a to 7a show in cross-section in a vertical plane
perpendicular to the axis of rotation (44) of the hinge (4), the
formation of the first half-hinge G (40) of the case shown in FIGS.
1a to 4b according to an embodiment of the present invention.
[0035] FIGS. 5a and 5b shows the half-portions of hinges G1 and G2
opposite prior to assembly, the half-portion G1 integral with the
lid (2) corresponding with a lid (2) open 180.degree. relative to
the bottom (3) with respect to one embodiment of the invention.
[0036] FIG. 6a shows in diagram form an assembly of the
half-portions G1 and G2 by simple axial displacement of one
relative to the other, so as to form the first half-hinge G (40),
the lid (2) being still open 180.degree. relative to the bottom (2)
according to one embodiment of the present invention.
[0037] FIG. 6b shows in diagrammatic form the half-hinge G (40) in
FIG. 6a after 180.degree. rotation of the lid, i.e. closure of the
case (1) in accordance with one embodiment of the present
invention.
[0038] FIG. 7a and 7b show the locking of the lid (2), for an
opening angle of 120.degree. relative to the bottom (3) according
to one embodiment of the invention.
[0039] FIG. 7a, similar to FIGS. 6a and 6b, shows that, for an
opening angle of 120.degree., the hinge half-portions G1 and G2
cannot be disassociated as provided in one embodiment of the
present invention.
[0040] FIG. 7b shows in diagram form a lid rotation locking means,
which includes a flexible tab (32) integral with the lid (3) which
engages with a catch (23) formed in the first hinge element (20) of
the lid in accordance with one embodiment of the instant
invention.
[0041] FIGS. 8a to 8f are diagrammatic views, in cross-section
along a vertical plane passing through the axis of rotation (44) of
the hinge (4), of different embodiments of hinges (4) and of the
corresponding assembly modes in accordance with the instant
invention.
[0042] FIGS. 8a and 8c relate to an embodiment of a hinge (4)
similar to that shown in FIG. 4a. In this embodiment, the first
half-hinge G (40) is formed first, then the second half-hinge D
(43) using an assembly plate (9).
[0043] FIG. 8b shows the longitudinal component (6), at its central
part, a cross-section of the first and second heads being shown on
either side.
[0044] FIG. 8d shows in diagram form, a case hinge according to
FIG. 1a to 3b, when the lid (2) is open 180.degree. when the lid
(2) is fitted to the bottom (3).
[0045] FIGS. 8e and 8f, similar to FIGS. 8a and 8c, show an
embodiment of a hinge (4) in accordance with one embodiment of the
invention.
[0046] FIG. 9 is a partial cross-section view of a closed case (1)
showing an embodiment of a clasp (5) including a push-button
(53).
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
[0047] According to the present invention, a case intended for
packaging cosmetic products is provided. A case of the present
invention includes a lid typically fitted with a mirror and fitted
with a first hinge element, and a bottom. The case optionally
includes an inner frame integral with the bottom, forming a cavity
intended to contain the cosmetic product or a trough containing the
cosmetic product. The bottom or the inner frame is preferably
fitted with a second hinge element, a hinge being formed by
engagement of the first and second hinge elements so as to allow a
rotation of the lid relative to the bottom along an axis of
rotation. There is also provided a clasp or any means of fastening
and unfastening the lid relative to the bottom or the inner frame,
including an engagement typically of a fastening hook integral with
the lid, and a nose integral with the bottom or the inner frame and
typically activated by a push-button. Finally the case can also
optionally include an applicator for the cosmetic product. A case
of the present invention also includes a means for automatically
opening the case in such a way that the lid opens automatically as
soon as a manual force is exerted on the clasp at each opening of
the case.
[0048] A case of the present invention (1) includes a lid (2)
fitted with a first hinge element (20), and a bottom (3) forming a
cavity intended to contain the cosmetic product. The bottom (3) is
preferably fitted with a second hinge element (30), such that
engagement of the first (20) and second (30) hinge elements form a
hinge (4) having a specific axis of rotation (44). Finally, there
is also provided a clasp (5).
[0049] In accordance with one advantageous embodiment of the
invention, there is provided a case with the following
components:
[0050] a) the hinge (4) is formed by two half-hinges (40, 43), one,
a so-called "right-hand" or "D") half-hinge including two hinge
half-portions D1 (300) and D2 (200) which engage, and the other, a
so-called "left-hand" or "G" half-hinge, including two hinge
half-portions G1 (301) and G2 (201) which engage, the hinge
half-portions D1 (200) and G1 (201) being integral with the lid
(2), the hinge half-portions D2 (300) and G2 (301) being integral
with the bottom (3) or with its inner frame,
[0051] b) a first half-hinge (40) is formed by engagement of a male
part (41) and a female part (42),
[0052] c) a second half-hinge (43) includes a longitudinal
connecting component (6), placed along the axis of rotation (44)
and engaging by its ends with the hinge half-portions of the second
half-hinge,
[0053] d) the longitudinal component (6) includes an axial spring
(60) ensuring engagement in rotation with the hinge half-portions
opposite,
[0054] e) the spring (60) has, between its ends, a pre-set angular
torsion a when the case (1) is closed, in such a way that, when the
lid is unfastened (2), the angular torsion a of the spring (60)
transfers to the lid (2) a pre-set opening torque Co.
[0055] Advantages of the instant invention include the fact that
assembly of the case is relatively simple and convenient and the
case includes automatic opening means having a pre-set opening
torque/force necessary to activate the clasp.
[0056] By using a longitudinal component including an axial spring,
it is possible, as described clearly in the present description and
figures, to obtain a case that is both easy to assemble, and has a
pre-set opening torque, thereby making it possible to open the lid
in a range typically from 50.degree. to 135.degree..
[0057] According to the present invention, and as shown for example
in FIGS. 4a and 4b, each of the anchoring means (61, 62) may
include a head (610, 620) ensuring the engagement in rotation, a
first head (610), anchored to a first end (600) of the spring (60),
typically engaging with the hinge half-portion D1, and, at its
second end (601), a second head (620), anchored to a second end
(601) of the spring (60), typically engaging with the hinge
half-portion D2, the first head (610) and the second head (620)
having between them the pre-set angular torsion .alpha. when the
case (1) is closed. According to FIGS. 4a and 4b, there is shown a
hinge (4) and its clasp (5), the left-hand cross-section
representing the clasp (5) and the right-hand cross-section
representing the hinge (4) with, on the left, a first half-hinge G
(40) formed by engagement of a female part (42), forming a first
half-portion (201) of the first hinge element (20) of the lid (2),
with a male part (41) forming a second hinge half-portion
(301).
[0058] As shown particularly in FIGS. 8a to 8f, the longitudinal
component (6) may form an axle, the first end (600) of this axle
engaging with a first channel (430) formed in one of the two hinge
half-portions D1 (200) and GI (201) integral with the lid (2),
typically in the hinge half-portion D1 (200), the second end (601)
engaging with a second channel (431) formed in one of the hinge
half-portions D2 (300) and G2 (301) integral with the bottom (3) or
the inner frame, typically in the hinge half-portion D2 (300).
[0059] The first (610) and second (620) heads may engage with the
first (430) and second (431) channels respectively, typically by a
noncircular cross-section of the heads (610, 620) and the channels
(430, 431), or by engagement of convex and concave elements (612,
622), so as to form the means of engagement in rotation. By way of
example, an anchoring means has been shown in FIG. 8a with a
hexagonal cross-section, and another anchoring means with a
rectangular cross-section.
[0060] Typically, the spring (60) may be in a permanent state of
compression or axial tension along the axis of rotation (44), in
such a way that the first (610) and second (620) heads are thus
typically kept pinned in the first (430) and second (431) channels
respectively.
[0061] The spring (60) may be able to be compressed axially, so as
to be able to be compressed over a length L1 or L2 in the first
(430) or the second (431) channel for the purpose of assembling the
hinge (4), the lengths L1 and L2 corresponding to the depth of the
first (430) and second (431) channels respectively. A slight
compression, as shown in FIGS. 8a and 8e, may be necessary to
ensure the longitudinal component (6) can be fitted to the lid (2)
and to the bottom (3) for the purpose of forming the hinge (4).
[0062] FIGS. 4c and 4d are cross-section views of a longitudinal
component (6) including a spring (60) a helical spring--of which a
first end (600) is anchored to a first anchoring means (61), and of
which the second end (601) is anchored to a second anchoring means
(62), the first anchoring means (61) including a first head (610)
integral with a first skirt (611) and with a first anti-rotation
means (612) in the form of an elongated part or bar able to engage
with a concave part in a channel (430) formed in the first hinge
element (20) and the second anchoring means (62) including a second
head (620) integral with a second skirt (61) and with a second
anti-rotation means (62) in the form of an elongated part or bar
able to engage with a concave part in a channel (431) formed in the
second hinge element (30).
[0063] According to a variant of the invention, and as shown in
FIGS. 4c and 4d, each of the anchoring means (61, 62) may include a
skirt (611, 621), a first skirt (611) being typically integral with
the first head (610), a second skirt (621) being integral with the
second head (620), the first (611) and second (621) skirts being
coaxial, one of the first (611) and second skirts (621) being an
inner skirt (63), the other being an outer skirt (64), in such a
way that the longitudinal component (6) forms a torsion damper,
simultaneously able to be compressed axially for the purpose of
assembling the hinge (4), and to have a pre-set angular torsion of
angle .alpha. for the purpose of forming the pre-set opening torque
Co of the lid (2).
[0064] The inner skirt (63), or the head integral with the inner
skirt (63), may include a shoulder (630) forming a stop for the
outer skirt (64) at its end (640), so as to limit the compression
of the longitudinal component (6) or of the torsion damper to a
pre-set length L.
[0065] According to one advantageous embodiment, the hinge (4) may
have an axial play E along the axis of rotation (44), between the
hinge half-portions D2 (300) and G2 (301) integral with the bottom
(3) or with its inner frame and the hinge half portions D1 (200)
and G1 (201) integral with the lid (2). The axial play E is
typically in a range from 0.3 to 1.5 mm, so as particularly to
facilitate the assembly of the hinge (4), as shown in FIGS. 8a and
8e.
[0066] However, on the one hand, except when this play E is
necessary for opening the case, this axial play can only be present
over a part of the hinge, that which is necessary for mounting the
hinge. In particular, it may be advantageous for this part of the
hinge to be located underneath the case so as not to be visible
when the case is placed on a support.
[0067] When this play is necessary to open the case, as will be
shown below, this axial play may be limited to the overlap of the
hook (51) and the nose (52) forming a lateral clasp (50).
[0068] According to one embodiment of the invention, the first
half-hinge (40), typically the half-hinge G, may be formed by
engagement of a male part (42) and a female part (42), the
engagement typically being practiced over an axial distance greater
than the axial play E, one of the male (41) or female (42) parts
being carried by the bottom (3) or the inner frame, the other of
the female (42) or male (41) parts being carried by the lid
(2).
[0069] In FIGS. 1a to 3b, the first half-hinge (40) forms a
left-hand half-hinge G, the right-hand side D or left-hand side G
being defined when looking at the case (1) or its elements from the
front. It goes without saying that the first half-hinge (40) could
just as well be a half-hinge D forming the right-hand part of the
hinge (4).
[0070] As shown in FIGS. 5a to 7a, and in FIGS. 1a and 2a, the
female part (42) may be formed by a first ring (420) of diameter D1
and the male part (41) by a second ring (410) of diameter D2<D1,
the first and second rings being typically ring portions over an
angle .beta. in a range from 200.degree. to 280.degree., so as to
form the hinge (4) without axial play E, or possibly facilitate the
assembly of the first half-hinge (40).
[0071] As shown particularly in FIGS. 2a and 5a, the female part
(42) may include at its centre a centre pin (421) of diameter
D3<D2.
[0072] According to another embodiment of the invention, and as
shown in FIGS. 8e to 8f, the first half-hinge (40) may include an
auxiliary longitudinal connecting component (7) equipped with an
auxiliary typically helical spring (70), so as to form an auxiliary
axle, or possibly to have a pre-set angular torsion of angle
.alpha., either for the purpose of bringing a contribution C'o to
the opening torque of the lid, or for the purpose of obtaining an
antagonistic torque Ca, the actual opening torque being then Co-Ca
or Co+C'o-Ca, so as to impart a particular feel when handling the
lid. As shown in 8e and 8f, the two half-hinges D (43) and G (40)
use a longitudinal component (6) and an auxiliary longitudinal
component (7) each forming an axle each end of which engages with a
channel (430, 431), the auxiliary longitudinal component (7) being
able to form either a simple axle with no torsion effect, or an
axle with torsion effect of angle .alpha..
[0073] According to another embodiment of the invention, the clasp
(5), or means of fastening and unfastening the lid (2) relative to
the bottom (3) or the inner frame, may be a lateral right-hand D or
left-hand G clasp (50), its position on a right-hand D or left-hand
G part or side of the case being typically selected according to
whether the case is intended to be used by a left-handed or
right-handed person.
[0074] As shown in FIG. 9, the lateral clasp (50) may include a
push-button (53) typically forming a component cast in one piece
with the bottom (3) or the inner frame.
[0075] As shown in FIGS. 1a to 3b, and more particularly in FIGS.
4a to 4b, 16, the clasp (5) may be formed by a lateral translation
of the lid (2) relative to the bottom (3) along the axis of
rotation (44) over a length at least equal to the axial play E, the
case then being without a push-button (53).
[0076] In this case, the fastening hook (21, 51) integral with the
lid (2) and the nose (31, 52) integral with the bottom (3) or the
inner frame may engage over a length, taken along the direction of
the axis of rotation, typically in a range from 0.5E to 0.9E,
typically over a length in a range from 1 mm to 3 mm.
[0077] The lateral clasp (50) may be a left-hand G clasp, the
second half-hinge (43) being the right-hand D half-hinge, as shown
in FIGS. 1a to 3b.
[0078] However, the lateral clasp (50) may be a right-hand D clasp,
the second half-hinge (43) being the left-hand G half-hinge.
[0079] Typically, the bottom (3) and the lid (2) may include a
rectilinear side forming the hinge (4), the cases (1) typically
being square, rectangular, partly round or oval in shape.
[0080] The hinge (4) may be formed by the series of hinge
half-portions denoted D1-D2 G2-G1 or by a series of hinge
half-portions denoted D2-D1 G1-G2, according to whether the hinge
(4) includes a central part formed by the first hinge element (20)
including the contiguous half-portions D2 and G2 denoted D2 G2, or
by the second hinge element (30) including the contiguous
half-portions D1 and G1 denoted D1G1, the hinge including an outer
part formed by the second hinge element (30) including the spaced
out half-portions D1 and G1 or by the first hinge element (20)
including the spaced out half-portions D2 and G2 respectively.
[0081] In the embodiment of the case (1) shown in FIGS. 1a to 3b,
the hinge (4) is formed by the series of hinge half-portions
denoted D2-D1 G1-G2, the half portions D2 and G2 of the bottom
forming the outer parts of the hinge belonging to the bottom (3),
the half-portions D1 and G1 of the lid forming the central part of
the hinge (4).
[0082] According to another aspect of the present invention, there
is provided a process for manufacturing a case as well as a process
relating to the formation of the hinge (4). In this process, as
shown in FIG. 8d, the second half-hinge (43) can be formed first
with assembly of the longitudinal component (6), then the first
half-hinge (40) can be formed by positioning angularly the bottom
(3) relative to the lid (2), with an assembly angle, typically
180.degree., chosen so as to be able to freely engage the male part
(41) in the female part (42).
[0083] In this case, and as shown in FIG. 7b, the bottom (3) and
the lid (2) may include angular locking means (8), so as to lock
the rotation of the lid at an angle lower than the angle of
assembly.
[0084] According to a variant of the manufacturing process and as
shown in FIGS. 8a and 18b, the first half-hinge (40) can be formed
first, then the second half-hinge (43) can be formed by temporarily
compressing the longitudinal component (6) in the first (430) or
second (431) channel.
[0085] The longitudinal component (6) can be compressed with a
plate (9) of thickness typically less than the axial play E, or
possibly, as shown in FIG. 8e, with two plates (9) of total
thickness typically less than the axial play, when the first
half-hinge includes an auxiliary longitudinal connecting component
(7) equipped with an auxiliary typically helical spring (70), so as
to form an auxiliary axle.
EXAMPLES
[0086] Cases (1) have been manufactured in accordance with FIGS. 1a
to 9.
[0087] A first embodiment of the case (1) was manufactured in
accordance with FIGS. 1a to 3b.
[0088] The lid (2) and the bottom (3) were manufactured by
thermoplastic moulding.
[0089] The longitudinal component (6) was supplied in accordance
with FIGS. 4c and 4d.
[0090] The hinge (4) of this case (1) is of the D2/D1G1/G2
type.
[0091] The first half-hinge G (40) is formed by engagement of a
male part (41) carried or formed by the left-hand hinge half
portion G1 (201) of the lid (2), with a female part (42) carried or
formed by the left-hand hinge half-portion G2 (301) of the bottom
(3).
[0092] These male and female parts include or form ring portions
(410, 420) which may engage by displacement perpendicular to the
axis of rotation (44), as shown in FIGS. 5a to 6b.
[0093] The second half-hinge D (43) is formed by engagement of a
longitudinal component (6) including a spring (60), and forming an
axle the ends of which, the first end (600) and the second end
(601), engage with two channels, one (430) formed in the hinge
half-portion D1 (200) of the lid (2), the other formed in the hinge
half-portion D2 (300) of the bottom (3).
[0094] In this case embodiment, the lid (2), the bottom (3) and the
longitudinal component (6) are assembled as shown in diagram form
in FIG. 8d:
[0095] the first half-hinge D (43) is formed first, the lid being
orientated 180.degree. relative to the bottom, as shown in FIGS. 5a
and 5b,
[0096] then the second half-hinge G is formed by placing the male
part (41) in the female part (42) opposite, and by closing the lid,
so as to lock the male and female parts, the angular locking means
(8) including the engagement of a stop tab (32) carried by the
bottom (3) on the back of the bottom, with a catch (23) carried by
the lid (2), at the back of the lid, so as to lock the rotation of
the lid (2) at a maximum angle, for example 120.degree., in respect
of which the male and female parts cannot be unfastened, as is
shown clearly in FIGS. 7a and 7b.
[0097] In this case, the clasp (5) is a lateral clasp (50) placed
on the left-hand side of the case.
[0098] This clasp does not include a push-button since the lid (2)
may be displaced relative to the bottom along a direction parallel
to the axis of rotation (44) by means of the play E (see FIGS. 4a
and 8d), in such a way that there is no more overlap between the
hook (21, 51) integral with the lid (2) and the nose (31, 52)
integral with the bottom (3).
[0099] A variant of this first embodiment has been manufactured
with a hinge (4) in accordance with FIGS. 4a and 4b.
[0100] In this case, the male (41) and female (42) parts are
standard, the male part (41) forming a pin and the female part (42)
a cavity, so that the assembly of the hinge (4) includes firstly
the axial coupling of the male and female parts, the spring (60)
being kept compressed.
[0101] It is possible to have possibly a male (41) part of length
substantially close to the play E and typically slightly less than
the play E, so as to be able to form the hinge (4) while keeping an
alignment between lid (2) and bottom (3).
[0102] A second embodiment of the case (1) has been made with the
hinge (4) formed in accordance with FIGS. 8e and 8f.
[0103] According to a first variant of this embodiment, a
longitudinal component (6) has been used as an auxiliary
longitudinal component (7) with an angular torsion .alpha.' giving
a torque C2, so as to form the first half-hinge G (40).
[0104] This angular torsion .alpha.' may be either positive and
reinforce the effect of the angular torsion a of the other
half-hinge D (43), the torque C2 of the half-hinge G (40) being
added to the torque C1 of the half-hinge D (43), or negative and
form a torque C2 antagonistic to the torque C1, with typically
C1>C2, so as to obtain a particular feel when opening.
[0105] According to a second variant of this embodiment, the
auxiliary longitudinal component (7) includes a spring and forms an
axle, without a torque C2 forming, the ends of the component (7)
being typically round.
[0106] A third embodiment of cases (1) has also been manufactured
wherein the hinge (4) is of the same type as the one in the first
case embodiment, in accordance with FIGS. 1a to 3b, but in which
there is no axial play E between the first hinge element (20) of
the lid (2) and the second hinge element (30) of the bottom (3). In
this case, the hinge (4) is mounted, without axial play, as shown
in FIGS. 5a and 5b. The half-hinge D (43) is formed first, then the
half-hinge G (40) by introducing the male part (41, 410) into the
female part (42, 420, 421), the lid being (2) at 180.degree.
relative to the bottom (3).
[0107] In this case, the lateral clasp (5, 50) includes a
push-button (53) typically integral with its inner frame (3'), and
with displacement--see double arrow--parallel to the axis of
rotation (44).
1 LIST OF IDENTIFIERS Case 1 Lid 2 First hinge element 20 First
hinge half-portions (D1, G1) 200, 201 Hook integral with 2 21
Mirror 22 Catch of 8 23 Bottom 3 Inner frame 3' Second hinge
element 30 Second hinge half-portions (D2, G2) 300, 301 Nose
integral with 3 or 3' 31 Angular stop tab of 8 32 Hinge formed by
20 + 30 4 First half-hinge (G = 201 + 301 or G1 + G2) 40 Male part
of 40 (G1) 41 Ring or ring portion 410 Female part of 40 (G2) 42
Ring or ring portion 420 Centre pin 421 Second half-hinge (D = 200
+ 300 or D1 + D2) 43 Channel formed in 200 or D1 430 Channel formed
in 300 or D2 431 Axis of rotation of 4 44 Axial play between 20 and
30 45 Clasp formed by 21 + 31 5 Lateral clasp 50 Hook integral with
2 51 Nose integral with 3 or 3' 52 Push-button to displace 51 or 52
53 Longitudinal component 6 Spring 60 First end 600 Second end 601
First anchoring means 61 First head 610 First skirt 611 First
anti-rotation means 612 Second anchoring means 62 Second head 620
Second skirt 621 Second anti-rotation means 622 Inner skirt (611 or
621) 63 Shoulder of 63 630 Outer skirt (621 or 611) 64 End of 64
640 Auxiliary longitudinal component 7 Spring 70 Means of angular
locking of 2 relative to 3 (32 + 23) 8 Assembly plate 9
[0108] Additional advantages, features and modifications will
readily occur to those skilled in the art. Therefore, the invention
in its broader aspects is not limited to the specific details, and
representative devices, shown and described herein. Accordingly,
various modifications may be made without departing from the spirit
or scope of the general inventive concept as defined by the
appended claims and their equivalents.
[0109] All documents referred to herein are specifically
incorporated herein by reference in their entireties.
[0110] As used herein and in the following claims, articles such as
"the", "a" and "an" can connote the singular or plural.
* * * * *