U.S. patent number 3,849,812 [Application Number 05/283,893] was granted by the patent office on 1974-11-26 for children's or infants furniture.
Invention is credited to Frederick Bartholomew Walsh.
United States Patent |
3,849,812 |
Walsh |
November 26, 1974 |
CHILDREN'S OR INFANTS FURNITURE
Abstract
An article of children's or infants' furniture, such as a cot,
comprises a cradle-portion in which a child or infant lies, drive
means for actuating the cradle-portion in rocking movement and
means which can be used to restrain the cradle-portion against
movement when required. Various different means for supporting the
cradle-portion for rocking movement are disclosed, and a device is
also disclosed which can be used in conjunction with an existing
cot, this device incorporating a platform which is mounted for
rocking movement and upon which the cot to be rocked can be
mounted.
Inventors: |
Walsh; Frederick Bartholomew
(Raheny, Dublin 5, EI) |
Family
ID: |
27576380 |
Appl.
No.: |
05/283,893 |
Filed: |
August 25, 1972 |
Foreign Application Priority Data
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Sep 1, 1971 [GB] |
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1110/71 |
Sep 28, 1971 [GB] |
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1207/71 |
Oct 5, 1971 [GB] |
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1244/71 |
Oct 29, 1971 [GB] |
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1374/71 |
Dec 16, 1971 [GB] |
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1589/71 |
Apr 21, 1972 [GB] |
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529/72 |
May 25, 1972 [GB] |
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706/72 |
Jun 13, 1972 [GB] |
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825/72 |
Aug 27, 1971 [GB] |
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1015/71 |
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Current U.S.
Class: |
5/108; 5/105 |
Current CPC
Class: |
A47D
9/02 (20130101) |
Current International
Class: |
A47D
9/00 (20060101); A47D 9/02 (20060101); A47d
009/02 () |
Field of
Search: |
;5/108,109,61,62 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Nunberg; Casmir A.
Attorney, Agent or Firm: Pollock, Philpitt & Vande
Sande
Claims
I claim:
1. A child's cot or crib comprising in combination:
a base-frame,
a cradle-portion located adjacent said base-frame,
pivot means supporting said cradle-portion on said base-frame and
defining an axis of pivotal movement about which said
cradle-portion is capable of limited rocking movement,
resilient elements engaged between said cradle-portion and said
base-frame, for cushioning said cradle-portion in its rocking
movement about said pivotal axis,
drive means for actuating said cradle-portion in such rocking
movement,
and releasable fastening means for selectively preventing movement
of said cradle-portion relatively to said base-frame.
2. A cot according to claim 1, wherein the base-frame is of
elongated form and the cradle-portion is mounted for pivotal
movement about a substantially horizontal axis extending
transversely of the base-frame, adjacent one end of the base-frame
and of the cradle-portion.
3. A cot according to claim 1, wherein the said drive means
comprise a motor and a rotary cam driven by the motor, the cam
being arranged to bear directly against the cradle-portion so as to
jog the cradle-portion sequentially during rotation of the cam.
4. A cot according to claim 1, wherein the said drive means
comprise a motor, a rotary drive disc driven by the motor, an
eccentric pin on the said disc and a connecting rod connecting the
said pin to the cradle-portion, whereby the cradle-portion is
rocked by reciprocatory motion of the connecting rod.
5. A child's cot comprising a base-frame of upright structural
members and a cradle-portion supported by the upright structural
members, the cradle-portion comprising at least four horizontal
stretcher-members, two stretcher-members being arranged one above
the other at opposite sides of the cradle-portion, and vertical
bar-members extending between the two stretcher-members at each
side of the cradle-portion, the bar-members being connected to the
stretcher-members by means of pivotal joints, so as to allow
angular oscillatory movement of the bar-members to provide a
rocking action of the cradle-portion, the cot further comprising
drive means for actuating the cradle-portion in its rocking action,
releasable fastening means for preventing rocking when required and
resilient elements engaged between said cradle-portion and said
base frame, for cushioning said cradle-portion in its rocking
movement.
6. A child's cot according to claim 5, wherein the two upper
stretcher-members extend between the upright members at each side
of the cot, the bar-members and the lower stretcher-members
depending from the upper stretcher-members and being freely
pivotable relatively thereto, so as to provide rocking action of
the cradle-portion.
7. A child's cot according to claim 5, wherein the two upper
stretcher-members extend between the upper parts of the upright
members at the respective sides of the cot, and wherein two
link-members are associated with the lower stretcher-member at each
side of the cot, each said link-member extending between a pivotal
connection at one end of the corresponding lower stretcher-member
and a pivotal connection at the lower part of the corresponding
upright member, the pivotal connections between the said lower
stretcher-members and the link-members associated therewith having
substantial play, whereby the lower stretcher-members are capable
of endwise oscillatory movement to provide rocking movement of the
cradle-portion.
8. A device for rocking a cot or crib comprising in combination a
base-frame,
a cot or crib supporting platform located adjacent to said
base-frame,
pivot means supporting said platform on said base-frame and
defining an axis of pivotal movement about which said platform is
capable of limited rocking movement,
resilient elements engaged between said platform and said
base-frame, for cushioning said platform in its rocking movement
about said pivotal axis, drive means for actuating said platform in
such rocking movement,
and releasable fastening means for selectively preventing movement
of said platform relatively to said base-frame.
9. A device according to claim 8, wherein the platform is mounted
for pivoting movement about a substantially horizontal axis.
10. A device according to claim 9, wherein the said horizontal axis
extends intermediately of the width of the platform.
11. A device according to claim 10, wherein the platform is mounted
on the base-frame by means of co-operating pivot-pins and
pivot-points which define the said horizontal axis.
12. A device according to claim 8, wherein the said drive means
comprise a motor and a rotary cam driven by the motor, the cam
being arranged to bear directly against the platform so as to jog
the platform sequentially during rotation of the cam.
13. A child's cot comprising a plurality of upright structural
members, two pairs of stretcher-members, extending between said
upright members at opposite sides of the said cot, the two
stretcher-members of each pair being spaced one above the other,
and upright bar-members extending between the two stretcher-members
of each pair, whereby the said stretcher-members and the said
upright bar-members form two walls defining between them, a
cradle-portion of the said cot, the said stretcher-members being
connected to the upright members and to the bar-members by means of
pivotal joints, whereby all of the said members are capable of
mutual angular yielding movement so as to allow rocking of the said
cot, drive means being provided to actuate said members in their
mutual yielding movement and releasable fastening means being
provided for preventing rocking when required and resilient
elements engaged between said cradle-portion and said upright
members for cushioning said cradle-portion in its rocking movement.
Description
This invention relates to children's or infants' furniture, and in
particular to beds, cots, cradles or cribs for children or infants,
all of which are to be understood as included in the term "cot" as
used hereinafter.
It is well known that an infant can often be soothed or put at ease
by rocking or gently agitating the cot. It is a principal object of
the present invention to provide a cot having improved means
enabling it to be rocked.
It is a further object of the invention to provide a cot having
relatively simple means whereby rocking can be carried out
automatically, in a convenient and effective manner.
Another object of the invention is to provide a device for use in
conjunction with an existing cot, enabling the latter to be
rocked.
A still further, and more specific object of the invention, is to
provide a device which can be used in conjunction with an existing
cot, without structural alteration of the cot, to enable the latter
to be rocked.
The term "rocking" and related words are used in this specification
in the broadest possible sense, and are to be understood as
embracing pivotal or other oscillation about a horizontal or a
vertical axis, as well as compound oscillatory movement which takes
place about a number of axes simultaneously, or which takes place
without any well-defined axis of oscillation, and also oscillatory
movement along a rectilinear or curvilinear path.
According to one aspect of the invention, there is provided, a
child's cot comprising a base-frame, a cradle-portion carried by
the base-frame for rocking movement relatively thereto, drive means
for actuating the cradle-portion in rocking movement relatively to
the base-frame, and releasable fastening means for restraining the
cradle-portion against movement relatively to the base-frame when
required.
Various mechanical arrangements may be employed for supporting the
cradle-portion for rocking movement, as will be described more
fully hereinafter. Alternatively, a magnetic arrangement may be
employed for this purpose, and, according to another aspect of the
invention, there is provided a child's cot comprising a base-frame,
a cradle-portion removably carried by the base-frame and capable of
being mounted thereon in either of two oppositely directed endwise
dispositions and co-acting magnetic means carried by the base-frame
and by the cradle-portion, the relative magnetic polarities of the
co-acting magnetic means being reversed by reversal of the endwise
disposition of the cradle-portion, whereby the said magnetic means
mutually repel in one endwise disposition of the cradle-member, so
that the cradle-member is movable relatively to the base-frame,
while the said magnetic means mutually attract in the other endwise
disposition of the cradle-member, so that the cradle-member is
restrained against movement relatively to the base-frame, the said
cot further comprising drive means for actuating the cradle-portion
in rocking movement relatively to the base-frame, when the said
cradle-portion is in the disposition in which it is movable
relatively to the latter.
Moreover, according to yet another aspect of the invention, there
is provided a child's cot which includes a cradle-portion and a
flexible fluid-containing envelope which, when containing fluid in
the fluid-space therein, allows rocking movement of the
cradle-portion, the said cot further comprising drive means for
actuating the cradle-portion in its rocking movement and means for
restraining the cradle-portion against rocking movement when
required.
According to a further aspect of the invention, there is provided a
child's cot comprising upright structural members and a
cradle-portion supported by the upright structural members, the
cradle-portion comprising at least four horizontal
stretcher-members, two stretcher-members being arranged one above
the other at opposite sides of the cradle-portion, and vertical
bar-members extending between the two stretcher-members at each
side of the cradle-portion, the bar-members being connected to the
stretcher-members by means of pivotal joints, so as to allow
angular oscillatory movement of the bar-members, to provide a
rocking action of the cradle-portion, the cot further comprising
drive means for actuating the cradle-portion in its rocking action
and releasable fastening means for restraining the cradle-portion
against rocking when required.
According to yet another aspect of the invention, there is provided
a device for use in conjunction with an existing cot, comprising a
base-frame, a platform mounted on the base-frame for limited
movement relatively thereto, drive means for actuating the platform
in its movement relatively to the base-frame, and releasable
fastening means for restraining the platform against movement
relatively to the base-frame when required, the platform being
adapted to receive and support a cot, whereby the cot is rocked
during movement of the platform relatively to the base-frame.
The invention will now be more fully described with reference to
the accompanying diagrammatic drawings which show, by way of
example only, various specific embodiments of the invention. In the
drawings:
FIG. 1 is a side elevational view of one form of cot with a side
panel removed, to show internal details;
FIG. 2 is an end view of the cot of FIG. 1;
FIG. 3 is a fragmentary view showing a modification;
FIG. 4 is a view similar to FIG. 1, but showing a different form of
cot;
FIG. 5 is a perspective "exploded" view of a device for use in
conjunction with an existing cot;
FIG. 6 is an end view of the device shown in FIG. 5, the position
of a cot used in conjunction therewith being indicated in dotted
lines;
FIG. 7 is an end view of another form of cot, together with a
device in accordance with the invention, used for rocking or
agitating the cot;
FIGS. 8 and 9 are side elevational views, each similar to FIG. 1,
but showing further modified forms of cot;
FIG. 10 is a sectional view through a still further form of
cot;
FIGS. 11 and 12 are side elevational views of still further forms
of cot;
FIG. 13 is an end view of another form of cot;
Referring to FIGS. 1 and 2, the cot shown therein comprises a
support frame 1 which rests on the floor. The support frame has
side panels, one side panel 2 being visible in FIG. 1, but the
other side has been removed to show internal details.
The cot includes a portion 3 in which the infant lies, referred to
herein as the cradle-portion or, alternatively, and purely for the
purposes of description, as the "basket." The sides of the
cradle-portion or basket 3 consist of upright rods (not shown) in
the conventional manner. The cradle-portion or basket 3 is mounted
for side-to-side rocking movement by means of brackets 4 and 5
which are engaged on a rod 6 extending lengthwise of the frame
1.
In addition, the basket 3 is located relatively to the frame 1 by
means of springs 7, three of which are visible in FIGS. 1 and 2.
The springs 7 act as cushioning devices which limit the rocking
movement of the basket and facilitate smoothness and quietness in
the reversal of the motion thereof. A fastening device 8 is
provided to fix the basket in position when desired and to prevent
unwanted movement thereof. As shown in FIG. 1, the device 8
comprises rings 9 and 10 on the frame 1 and on the basket 3 which
serve, when brought into co-operating positions, to receive a
fixing pin 11, so that the basket 3 can be fixed relatively to the
frame 1.
FIG. 3 shows an alternative form of fastening device, in which a
ring 12 engages in a slot 13 formed in a block 14, the block 14
also being formed with a bore 15 to receive a fixing pin 16, by
means of which the ring 12 can be fixed relatively to the block
14.
Referring again to FIGS. 1 and 2, a motor 20 is mounted on the
frame 1. The motor 20 drives a cam 21 which bears directly against
the basket 3 at a position near one side thereof. Thus the cam 21
causes the basket 3 to execute a jogging movement about the rod 6,
as the cam is driven in rotation by the motor 20.
The cam 21 may be shaped so as to have a single rise, or two or
more rises, so as to provide one or more jogging movements during
each rotation of the cam.
Instead of the basket 3 being mounted on a long rod 6, it would be
possible for the frame 1 to carry two short pivot-pins projecting
inwardly from the end-members of the frame and engaging with
pivot-pins provided on the basket 3. Alternatively, the pivot-pins
could be mounted on the basket 3 and the pivot-points on the frame
1.
In such a construction, the pivot-pins and pivot-points can be
arranged so that the pivotal axis of the basket 3 is near the
bottom of the basket, in a similar position to the pivotal axis
defined by the rod 6 in FIGS. 1 and 2, or the arrangement may be
such that the pivotal axis is near the top of the basket.
Referring now to FIG. 4, the cot shown therein comprises a support
frame 41 carrying a basket 43 which is mounted on the frame 41 by
means of a rod 46 which extends transversely across the support
frame 41, near one end of the latter. Thus the basket 43 is mounted
for pivoting movement about one end thereof, being supported at the
opposite end by springs mounted on the frame 41. One such spring is
visible in FIG. 4, at 47.
The basket 43 may be jogged up and down at one end thereof by means
of a motor 40. The motor 40 could drive the basket 43 by means of a
cam arrangement as shown in FIGS. 1 and 2. However, FIG. 4 shows an
alternative arrangement in which the motor 40 drives a disc 41
carrying an eccentric pin which is connected to the basket 43 by
means of a connecting rod 44. Thus the basket 43 is jogged by means
of the reciprocatory movement of the connecting rod 44.
A fastening (not shown in the drawings) similar to that described
with reference to FIGS. 1 and 2 or FIG. 3, is provided to fix the
basket 43 when desired.
Referring now to FIGS. 5 and 6, the device shown therein comprises
a support frame 51 and a platform 52, the platform 52 being shown
detached from the frame 51 in FIG. 5. The platform 52 carries
pivot-pins 53 and 54 by means of which the platform 52 is supported
on pivot-points 55 and 56 carried by the frame 51, in the manner
shown in FIG. 6. The platform 52 can then be pivoted from side to
side about the axis defined by the pivot-pins 53 and 54, under the
action of a motor 57 mounted on the frame 51 and driving a cam
58.
The device shown in FIGS. 5 and 6 is used in conjunction with a
conventional cot which can be rested on the platform 52, in the
position indicated in dotted lines at 60 in FIG. 6. The cot
indicated in FIG. 6 is of a type having four feet, which engage
over the opposite ends of the platform 52 and locate it relatively
to the platform. As the platform 52 is oscillated by the motor 57,
the cot 60 is rocked from side to side.
A hook-and-eye fastener 61 is provided so that the platform 52 can
be held rigid when desired. When the platform is free, the rocking
movement thereof is limited by means of springs 62 mounted on the
frame 51.
FIG. 7 shows a cot 70 of the kind provided with curved rockers at
either end, one rocker 71 being visible in FIG. 7. The cot 70 is
used in conjunction with a device 72 which is shown purely
schematically in FIG. 7. The device 72 consists of a frame of
somewhat similar construction to the frame 51 shown in FIGS. 5 and
6, carrying a motor provided with drive means, and a fastening
device for use when rocking is not desired. The arrangement of the
motor and drive means may be similar to that of the motor 57 and
cam 58 shown in FIG. 5. In that event, as the cam is driven in
rotation, it bears directly on the cot 70 and rocks the latter on
its rockers 71.
Referring now to FIG. 8, the cot shown therein comprises a support
frame 81 fitted with two or more rails extending lengthwise of the
frame 81 and forming a guide-track, the position of the guide-track
being indicated in dotted lines at 82. The cot includes a basket 83
which can "glide" lengthwise relatively to the rails 82. For this
purpose the basket 83 may rest directly on the rails of the
guide-track 82 but preferably, as indicated in FIG. 8, the basket
83 is mounted by means of rollers 84 and 85 running on the rails.
The basket 83 is cushioned in its endwise movement by means of
springs 86 and 87 engaging between the basket 83 and the
end-members of the frame 81. It would also be possible for
guide-rails to be provided, engaging the basket 83 at its sides, so
as to provide lateral guiding.
It will be understood that, in the arrangement shown in FIG. 8, the
basket 83 is capable of endwise oscillating movement. It can be
actuated in such movement by hand, or by means of a motor. The
motor may drive the basket 83 in its endwise movement by means of a
cam, or an eccentric disc and connecting rod, as previously
described. However, other means could be employed, such as a belt
and pulley drive, for example. A fastening device is provided for
holding the basket 83 in position, when rocking is not desired.
FIG. 9 shows a form of cot somewhat similar in overall construction
to the cot shown in FIG. 8. However, in this case, magnetic means
are provided by means of which the basket 93 can be made to "float"
relatively to the support frame 91.
The frame 91 and the basket 93 are each fitted with a number of
permanent magnets. Thus, for example, the basket 93 can be fitted
with four magnets arranged near the four corners of the underside
thereof, co-operating with magnets provided at corresponding
positions on the frame 91. In FIG. 9, two magnets 94 and 95 are
visible on the frame 91, co-operating with two magnets 96 and 97 on
the basket 93.
The arrangement is such that the basket 93 can readily be removed
from the frame 91, and replaced with its endwise disposition
reversed relatively to the frame 91.
The disposition of the magnets on the frame 91 and on the basket 93
is such that, in one endwise position of the basket 93, the
polarities of the magnets are as indicated by the letters "N" and
"S" in FIG. 9. It will be seen that, in the mode shown in FIG. 9,
the magnets of each co-operating pair will tend to repel one
another so that the basket 93 will "float." On the other hand, if
the endwise disposition of the basket 93 is reversed, the magnets
of the respective pairs will attract one another and the basket 93
will thus be held fixed relatively to the support 91.
Referring now to FIG. 10, the device shown therein comprises a
rigid outer frame 101 and a cradle-portion or basket 103. The
basket 103 is supported by a flexible envelope 102 arranged inside
the frame 101, the envelope 102 being designed either to contain a
liquid such as water, or to be inflated by means of air. The whole
structure is mounted on a base or stand 100.
A motor 104 is mounted on the outside of frame 101, the motor
having a reciprocatory drive shaft 105. The envelope 102 is
provided with a sealed sleeve 106 by means of which the shaft 105
extends through the interior space of the envelope, to be connected
to the basket 103. The motor 104 drives the shaft 105, which
agitates the basket 103 as desired.
A device is provided (not shown in the drawings) for holding the
cradle-portion 103 against movement when desired.
It would be possible to dispense with the rigid frame 101 and with
the separate cradle-portion or basket 103. Both of these parts
could be constituted by the wall of the envelope 102 which, for
this purpose, could be formed with appropriate semi-rigid
wall-portions.
Referring now to FIG. 11, the cot shown therein in side elevation
comprises four upright structural members, of which two are visible
in FIG. 11 at 110 and 111. The uprights are connected by two
lengthwise stretcher-members 112 and 113 spaced one above the other
and connected to the uprights by means of pivotal joints 114, 115,
116 and 117. The lengthwise members 112 and 113 have vertical
bar-members 118 extending between them, which are connected to the
lengthwise members 112, 113 by means of pivotal joints similar to
those already referred to. The uprights and stretcher-members are
connected to one another by means of springs 119, which retain the
whole structure in the position shown in FIG. 11, while
nevertheless rendering the structure flexible, so that it can be
oscillated in the direction indicated by the arrows in FIG. 11,
either by hand or by means of a motor mounted on the structure, as
indicated at 120.
It will be understood that the bearer-members 112, 113 and the
vertical members 118 extending between them constitute two walls,
defining between them the cradle-portion where the infant lies,
rocking movement being imparted to the cradle-portion by the
oscillatory movement applied to the whole structure as referred to
above.
Means (not shown in the drawings) are provided for restraining the
structure against movement when required, these means being similar
to those already referred to in connection with other
constructions.
Referring now to FIG. 12, the cot shown therein likewise has a
cradle-portion or basket, defined by walls, each of which is
constituted by a plurality of vertical bar-members 128 extending
between horizontal stretcher-members 122, 123. In this case,
however, only the upper stretcher at each side of the cot (the
stretcher 122 as shown in FIG. 12) is pivotally connected to the
uprights 121, so that the cradle-portion or basket is in effect
suspended from the stretchers at the upper part of the cot, for
oscillatory movement within the space defined by the four uprights
121.
Oscillatory rocking movement of the basket is effected by a motor
124 mounted on one of the uprights 121, which oscillates the basket
by means of a reciprocatory connecting rod 125, and fastening means
are provided for locking.
FIG. 13 shows and end view of a modified form of the cot shown in
FIG. 12. In the construction shown in FIG. 13, instead of the
cradle-portion or basket 133 being freely suspended between the
uprights 131, the pivotal joints 134 at the corners of the basket
133 have link-members 135 connected thereto, the link-members
extending to pivots 136 near the feet of the uprights 131. The
upper corners of the basket 133 are directly connected to the
uprights 131, by means of the pivots indicated at 137.
The pivotal joints 134 are constructed with considerable play, and
this allows very limited oscillatory movement of the basket 133
relatively to the uprights 131. Drive means are provided for
actuating the basket in its oscillatory movement, which drive means
may be similar to the drive described with reference to FIG. 12.
Fastening means are provided, for locking the basket 133 in
position, when required.
The above description of particular embodiments of the invention
has, of course, been given by way of example only, and the details
of the various embodiments may be varied without departing from the
scope of the invention, as defined by the appended claims.
In particular, the details of the drive means described above may
be varied, and the specific forms of drive referred to in
connection with particular embodiments may be applied to others of
the embodiments described.
Particular reference may be made to the fact that the various
different drive arrangements described, may all be applied to the
device shown in FIGS. 5 and 6, which is intended for use in
conjunction with an existing cot.
In certain of the embodiments described, a motor has been shown,
mounted on the stationary base-frame of the arrangement, connecting
means being provided for transmitting the drive to the movable
portion of the arrangement. It would be equally possible for the
motor to be mounted on the movable portion and to be connected to
the stationary portion by connecting means, so as to provide the
necessary reaction for driving the movable portion in its rocking
movement.
In connection with a cot of the kind shown in FIG. 7, which is
mounted on curved rockers, a motor could be mounted on the cot, so
as to provide the desired rocking movement by reaction, against the
floor for example. In this case, cushioning elements, such as
springs or rubber pads, would be mounted at the ends of the
rockers, so as to limit the rocking movement of the cot, and
facilitate reversal thereof, at the limits of its rocking
movement.
Particular reference is directed to the feature of the invention,
according to which means are provided for limiting movement in the
various constructions described. Any form of resilient element can
be employed for this purpose.
Another important feature of the invention, resides in the
provision of means whereby movement can be positively prevented,
when desired. The details described in relation to this feature,
with particular reference to FIGS. 1 to 6, can be applied to all
the embodiments of the invention described herein. Alternatively,
any other convenient form of clamp or fastener can be employed for
the purpose.
The two features just referred to have important practical
advantages which are obtainable regardless of whether the rocking
movement of the cot in question is effected by manual operation or
by means of a power drive.
As regards the forms of power drive which may be employed, various
kinds of motor are suitable, such as spring motors and electric
motors, including linear and synchronous motors and solenoid
devices. The motor used may be provided with a variable speed
facility, and a timer may be employed, so that the motor is
switched off after rocking action has been applied for a
predetermined time.
* * * * *