[0001] The present invention relates to an artificial eye for toys such as dolls.
[0002] In order to improve the appeal of the toys such as toy animals and especially dolls,
it is well known to provide for movement of the eyes of the toy. In particular the
so called "sleeping eye" has become popular. In this arrangement the eye has two alternatively
viewable portions, one depicting the pupil etc and the other depicting an eye lid.
The pupil or eye lid is vieweable in accordance with the vertical or horizontal position
of the toy. That is, in the case of a doll, the doll's eyes open and close as the
doll is moved between standing and lying positions.
[0003] It is also known to provide for "left/right" movement of the eyes of a toy. Obviously
it is desirable for the left/right movement to be synchronized between the two eyes
of a toy. Initially this was achieved by a physical connection between the eyes. More
recently counterweight arrangements have been devised which maintain synchronization
between the eyes without the provision of a physical connection therebetween.
[0004] Eye movement is one aspect of increased realism in toys. Another such aspect is the
provision of a water reservoir within the toy with ducting to enable water to be expelled
to simulate tears.
[0005] The present invention resides, at least partially, in a combination of these eye
movement and simulated tear features.
[0006] According to the present invention there is provided an artificial eye for a toy
comprising:
a primary housing,
a secondary housing pivotally retained in the primary housing,
an inner body pivotally retained in the secondary housing,
balance means arranged to result in relative pivotal motion between the primary
and secondary housings and relative pivotal motion between the secondary housing and
the inner body upon respective movements of the primary housing, and
tear duct means which enable liquid to escape from the eye to simulate tears.
[0007] An embodiment of the invention will now be described by way of example only and with
reference to the accompanying drawings, in which:
Figure 1 is a front view of an artificial eye embodying the present invention,
Figure 2 is a vertical section taken along the line A-A of figure 1, and
Figure 3 is a partial horizontal section taken along line B-B of Figure 1.
[0008] The drawings illustrate an artificial eye particularly suitable for dolls. Two such
eyes are located in respective sockets in a doll's head. The artificial eye has an
eye lid which closes so as to cover the iris and pupil. The iris and pupil themselves
are capable of left/right movement relative to the eye lid and in addition the eye
is provided with a tear duct so that water can be made to escape from the eye to simulate
tears. The construction of the eye is such that movement of the eye lid and left/right
movement of the iris and pupil is synchronized between two eyes set in a doll's head,
even though the eyes operate separately.
[0009] As best shown in figure 2, the eye comprises a two part primary housing 10 a secondary
housing 12, an inner body 14 and a counterweight 16.
[0010] The primary housing 10 comprises a front casing 18 and a rear casing 20. Rear casing
20 is formed of a moulded plastics material and comprises a hollow cylindrical section
22 closed at one end by a hollow frusto-conical section 24 and circular surface 34.
The outer cylindrical surface of portion 22 is recessed from the open end of the rear
casing and this recess 26 is engaged by a short cylindrical section 28 of the front
casing 18, thus joining the two parts 18 and 20 together. Recess 26 incorporates upper
and lower flat platforms 27 (Figure 1) which assist in alignment and mutual retention
of the two parts 18 and 20. The remainder of front casing 18 is in the form of a hollow
hemisphere 30 which is provided with a central aperture 32. The front casing 18 is
formed of metal and this has a number of advantages. In particular, forming the front
casing 18 of metal enables the part to have a much thinner cross-section, as contrasted
with forming the part of a plastics material. Additionally, the metal casing 18 can
exhibit an improved resilience in mating with casing 20, as contrasted with a plastics
material.
[0011] The circular surface 34 which closes the frusto-conical section 24 of casing 20 has
an integral hollow pipe 35 projecting outwardly from the centre thereof. Pipe 35 is
attached, in a manner to be described, to a water reservoir within the doll thus enabling
water to enter the inside of the eye.
[0012] As shown in Figure 3, the recessed portion of the cylindrical section 22 of casing
20 is provided with two slots 38 located diametrically opposite each other. The slots
38 extend into the cylindrical portion 22 from the open end thereof. Secondary body
12 is provided with two spigots 40 which extend into respective slots 38 and which
are retained therein by the front covering 18. The secondary housing 12 is thus pivotally
retained within the primary housing 10. The spigots 40 lie along a common axis X and,
with the doll in a standing position, axis X lies in the central horizontal plane
of the eye.
[0013] Secondary housing 12 has in its vertical cross-section, the form of a partial hollow
sphere, as shown in Figure 2. The front part of the housing 12 is provided with an
aperture 34 of substantially the same shape and size as aperture 32. The secondary
housing 12 is however provided with an outwardly projecting flange 36 which extends
through aperture 32. From figure 2, it will be apparent that flange 36 acts as a stop
at both extremes of pivotal movement of housing 12 within housing 10. Artificial eye
lashes 38 are attached to flange 36. The secondary housing 12 is formed of a moulded
plastics material.
[0014] Inner body 14 represents the eye ball and comprises a partially spherical body of
moulded plastics material. Inner body 14 is provided with two integral spigots 42
which extend into circular apertures 44 provided in the secondary housing 12. Spigots
42 lie on a common axis Y which is perpendicular to axis X. With the doll in the standing
position, axis Y is inclined at an angle of approximately 30° to the vertical. Spigots
42 snap-fit into apertures 44.
[0015] Inner body 14 is provided with a shallow cylindrical recess 46 extending inwardly
from the front surface thereof. The diameter of recess 46 is almost as large as the
height of aperture 34, as can be seen from figure 2. A recess 48 having a diameter
of approximately 0.4 of that of recess 46 extends deeper into body 14 and in fact
passes therethrough. Apertures 46 and 48 together receive a round headed stud 50 which
represents the iris and pupil of the eye. Stud 50 is formed of a translucent material
and the depth of the shank 52 forms a dark circular area representing the pupil, when
viewed through the head of the stud. The lesser depth of material for the remainder
of the head of the stud and the reflective properties of the bottom of recess 46 together
produce the appearance of an iris surrounding the pupil. This effect can be significantly
enhanced by the provision of radial grooves 5a in the underside of the head of the
stud. This is best seen in figure 1. Stud 50 is frictionally engaged in recesses 46
and 48.
[0016] Counterweight 16 is received in a recess 56 provided in a boss 58 projecting from
the lower portion of the rear of inner body 14. Counterweight 16 is formed of a sufficiently
dense material such as lead and may be held in recess 56 by frictional engagement.
Alternatively body 14 is moulded onto weight 16. Counterweight 16 is in the form of
solid cylinder, its longitudinal axis Z being perpendicular to axis Y.
[0017] The whole of the unit shown in the drawings snap-fits into an eye socket provided
in the head of the doll. As the doll is moved from a standing to a lying position,
counterweight 16 causes the inner body 14 and the secondary housing 12 to rotate as
a single unit about axis X. Consequently, flange 36 moves across aperture 32 thus
providing the effect of an eye lid closing in front of the eye ball. Counterweight
16 always try to maintain its lowest position. Of course, as the doll is moved from
the lying to the standing position, the relative pivotal movement between secondary
housing 12 and primary housing 10 is such as to give the effect of the eye opening.
Rotational movement of the doll's head will result in an effective left/right movement
of primary and secondary housings. Counterweight 16 is, however, sufficiently heavy
as to resist movement of the inner body 14 which thus pivots in the secondary housing
12 about axis Y. Since the inner body 14 effectively remains stationary during left/right
movement of the doll's head, the apparent motion of the two eyes relative to the doll's
head is synchronized. Of course, rotation of the doll's head while moving the doll
from a standing to a lying position will result in simultaneous rotation about axes
X and Y.
[0018] Operation of the tear simulation facility will now be described.
[0019] As previously explained, the whole of the unit shown in the drawings snap-fits into
an eye socket provided in the doll's head. The eye socket is provided with an aperture
to receive pipe 35 which projects from the back of primary housing 10. A plastic tube
is located inside the doll's head and is retained over pipe 35. It may be necessary
to use a tool such as a pair of long-nosed plyers in order to achieve this operation.
The plastic tube connects pipe 35 to a water reservoir which is housed, preferably,
within the doll's head. The reservoir is filled via a feed tube which is connected
to an orifice representing the doll's mouth.
[0020] The feed tube may be provided with a valve such that water in the reservoir does
not flow back out of the doll's mouth. Alternatively, a bung, perhaps representing
a teething ring, is inserted into the doll's mouth after the reservoir has been filled.
An air bellows is located in the doll's body and is connected to the reservoir in
a known manner. The result is that squeezing the doll's body applies air pressure
to the water reservoir which results in water travelling via the plastic tube and
pipe 35 into the primary housing 10. The water collects inside primary housing 10
and as the water level there increases, or as the doll's head is tilted forwards,
the water passes between the secondary housing 12 and the front casing 18 to escape
from the front of the eye, simulating tears. It is to be noted that the components
of the eye are preferably formed of water resistant materials or are provided with
a water resistant coating. Stud 52 is, in this respect, particularly beneficial as
contrasted with the conventional cardboard or paper insert carrying a painted iris
and pupil.
[0021] While one embodiment of the invention has been described in detail with reference
to the accompanying drawings, various modifications will be readily apparent to those
skilled in the art.
1. An artificial eye for a toy characterised by:
a primary housing (10), a secondary housing (12) pivotally retained in the primary
housing (10), an inner body (14) pivotally retained in the secondary housing (12),
balance means (16) arranged to result in relative pivotal motion between the primary
and secondary housings (10, 12) and relative pivotal motion between the secondary
housing (12) and the inner body (14) upon respective movements of the primary housing
(10), and tear duct means (35) which enable liquid to escape from the eye to simulate
tears.
2. An artificial eye as claimed in claim 1, characterised in that the secondary housing
(12) is pivotaly retained about a first axis (X) and the inner body (14) is pivotally
retained about a second axis (Y), the second axis (Y) being perpendicular to the first
axis (X).
3. An artificial eye as claimed in claim 1 or 2, characterised in that the inner body
(14) has a portion thereof representing an eye ball with an insert (50) therein representing
an iris.
4. An artificial eye as claimed in claim 3, characterised in that said insert (50)
is a unitary body representing both an iris and a pupil.
5. An artificial eye as claimed in claim 4, characterised in that said insert (50)
is a stud formed of translucent material with the shank of the stud representing the
pupil when viewed through the head of the stud, the head of the stud being provided
with radial grooves.
6. An artificial eye as claimed in any preceding claim, characterised in that the
primary housing (10) is formed of two parts (18, 20), one part (18) having an aperture
(32) through which the secondary housing (14) and inner body (16) may be viewed and
the other part including a pipe (35) forming part of said tear duct means.
7. An artificial eye as claimed in claim 6, characterised in that said one part (18)
is formed of metal and the secondary housing (12) and inner body (14) are respective
integral structures formed of plastics material.
8. An artificial eye as claimed in claim 6 or claim 7, characterised in that said
secondary housing (12) comprises a flange (36) which projects through said aperture
(32) and thereby limits pivotal movement of the secondary housing (12) relative to
the primary housing (10).
9. A doll having an artificial eye as claimed in any preceding claim and a liquid
reservoir located within the doll's head and connected to said tear duct means (35).
10. A doll as claimed in claim 9, characterised by an air bellows connected to said
reservoir and operable to cause liquid to be expelled from said eye via said tear
duct means (35).