U.S. patent number 3,888,386 [Application Number 05/466,896] was granted by the patent office on 1975-06-10 for hinge-like device for caps or covers.
Invention is credited to Harry Svensson.
United States Patent |
3,888,386 |
Svensson |
June 10, 1975 |
Hinge-like device for caps or covers
Abstract
Device for automatically placing a cap or cover on the upper
open end of a jar or container. The cap is retained at an opening
angle relative to the horizontal by a leaf spring.
Inventors: |
Svensson; Harry (162 35
Stockholm, SW) |
Family
ID: |
20317353 |
Appl.
No.: |
05/466,896 |
Filed: |
May 3, 1974 |
Foreign Application Priority Data
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May 3, 1973 [SW] |
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061814/73 |
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Current U.S.
Class: |
220/829 |
Current CPC
Class: |
B65D
43/24 (20130101); E05D 11/105 (20130101); A45C
13/34 (20130101); E05Y 2900/602 (20130101); E05Y
2900/20 (20130101) |
Current International
Class: |
A45C
13/00 (20060101); A45C 13/34 (20060101); B65D
43/24 (20060101); B65D 43/14 (20060101); E05D
11/00 (20060101); E05D 11/10 (20060101); B65d
043/24 () |
Field of
Search: |
;220/375 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hall; George F.
Attorney, Agent or Firm: Burns, Doane, Swecker &
Mathis
Claims
What I claim is:
1. A hinge-like supporting device for a horizontally arranged cover
or the like, which is intended to be opened upwards around its back
end, characterized by the fact, that a vertically located segment
(1) substantially having the shape of a quarter of a complete
circle and being attached to and extending downwards or
alternatively backwards from the cover at said back end in a plane
which is perpendicular to the rotation axis of the cover, and where
the peripheral surface of the segment is formed in steps with two
or more recesses, which at the movement of the segment around the
rotation centre (4) of the cover is in steps influenced by a spring
force directed towards a point (A) in front of said rotation
centre, so that the lever produced and the strength of the spring
force will neutralize the weight of the cover at each step, whereby
the cover will be retained at the opening angle relative to the
horizontal plane corresponding to the position on the periphery of
the segment of the recess (B) spring loaded at the respective
moment.
Description
The present invention relates to a hinge-like device, which makes
it possible to set a cap, a cover or the like in a desired angle
relative to the horizontal plane.
Many products are provided with a protective cover or cap of
various kinds which must be opened to make the product accessible.
Here it is desirable to provide the cover/cap with some form of
hinge which at the same time forms a support for the cover/cap in
one or several positions, so that said product is accessible with
both hands. Usually the usual type of hinges is used together with
some kind of supporting pin for the cover/cap, or alternatively
specially manufactured friction hinges have been used. All of said
constructions comprise several parts and are therefore often
expensive.
It is an object of the present invention to provide a hinge-like
device comprising as small as possible a number of parts, but still
can support the cover in a reliable way in a desired angle relative
to the horizontal plane. Thus, according to the invention, a
vertical segment is provided at the joint part of the cover, said
segment having the shape of a quarter of a circle with the
periphery directed forwards/downwards or downwards/backwards. The
periphery surface is provided with one or several recesses which,
one after the other being influenced by spring pressure, will keep
the cover safely up at a certain opening angle relative to the
horizontal plane. According to the invention the cover can further
be easily completely removed without that the reliability of the
adjustability of the cover is changed.
The advantages of the present invention will be more clearly
revealed in the following description and by the enclosed drawing.
The drawing shows a cover in an inclined position relative to the
horizontal plane, where the segment is directed forwards/downwards.
In order to make the drawing as clear as possible only part of the
cover is shown, as the rest of the form of the cover is not part of
the invention.
As is shown in the drawing the supporting device is constructed as
a lever, and the force which neutralizes the weight of the cover
and its striving to go back to the horizontal position from an
opened position is provided by a circular rubber member 3 and a
leaf spring 2 which together support the recesses of the segment.
The primary point is the strength of the force and the direction of
the force towards a point A in front of the rotation centre 4 of
the cover.
The invention has the advantage that the construction can easily be
adapted to different sizes and weights of cover. The diameter and
the thickness respectively as well as the hardness of the rubber
member can, like the radius of the segment, be varied. At very
small forces required, the leaf spring alone may be a sufficient
support for the cover. The friction member may also be replaced by
a coil spring, its force being directed towards the point A.
The supporting device is located at the back part of the side of
the cover, but may also be an extension of the cover. Especially at
the production of covers of injection moulded plastic it is
advantageous, considering both the costs and the design, to let the
cover and the segment of the supporting device be made of one part.
The supporting device comprises a segment with the shape of a
quarter of a full circle and with a thickness which is determined
by the required stiffness of the segment, and being provided with
one or several recesses in the periphery. Furthermore, the
supporting device comprises a spring, which is located on the box
or the like that the cover is intended to be attached to. The
spring force is directed along the line A-A1, and hereby a lever is
provided between the rotation centre of the cover and the point A.
When the cover is set in an inclined position, one of the recesses
of the segment periphery will be supported by the spring in the
point B. The spring force is so dimensioned that it will neutralize
the striving of the cover to go back to the horizontal position.
The inclination angle of the cover is determined by the direction
of the spring force and the then used recess of the segment.
The recesses are in the described embodiment formed for a leaf
spring, but can also have other shapes, for example the shape of a
half circle in order to suit a spring loaded ball. The important
thing is to use a segment and the lever principle thereby
offered.
In certain cases it may be advantageous to use two supporting
devices, for example when the radius of the segment must be limited
due to small space.
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