[0001] This invention relates to a corner protector designed for protection of corner edges
of cargoes during storage and transport.
The invention is used for protection of different materials, esspecially paper transported
in columns, subjected to squeezing and to other damages, which may occur both during
transport and storage.
[0002] A known corner protector has the shape of one element in a shape of an angle which
consists of two arms situated towards each other in an unbiased state at an angle
a little larger than an angle of 90 degrees.
[0003] The top of an angle, in a point of contact of two arms, is rounded.
[0004] On the outer surface of the corner protector there are bulging reinforcing ribs,
situated along longer sides of the arms. The reinforcing ribs, with their ends are
leant towards shorter sides of arms.
[0005] The reinforcing ribs make a full line passing also through a rounded top.
[0006] Among the reinforcing ribs there are situated narrow, straight, stiffening ribs,
which are parallel to each other and to reinforcing ribs. The narrow straight, stiffening
ribs are situated along each arm, from the top of the corner protector towards a shorter
side of the arm, moreover, the ribs coming out of the top, are situated from the outer
side and and they make ribs situated from the inner side which next make ribs situated
from the outer side. The ribs, led from the top of the corner protector are elongated.
[0007] On each arm, among straight ribs, there is a field with a smooth upper surface, and
this upper surface is situated on the same height as the upper surface of bulging
reinforcing ribs.
[0008] The ribs, which are on the outer side, have a flat base from the inner side but fields
with smooth surface, which are on the outer surface, have, from the inner side, ribs
situated longitudinally relatively to longer sides of the corner protector.
[0009] From a side view, the tops of ribs, situated from the outer side make concave lines,
and the tops of ribs situated from the inner side make convex lines.
[0010] The rims of longer arms of the corner protector are thickened.
[0011] On surfaces of the outer arms of the corner protector one places a belt which fastens
a cargo. The belt is situated on the ribs between bulging reinforcing ribs and it
is situated on the field with a smooth surface which is on the same surface as the
upper surface of the bulging reinforcing ribs.
[0012] The corner protector is made of plastics. After pulling belts, the arms of the corner
protectors deform in such a way, that they ensure pressure to sides of a cargo.
[0013] It happens, that in view of occuring of stresses which arrise as a result of tightening
of the belts fastening a cargo and as a result of vibrations, which occur during transport,
insignificant deformation of the corner protector takes place in the area, among the
top and bulging reinforcing ribs,in which narrow and oblong and stiffenig ribs are
situated.
[0014] Construction of ribs, in the mentioned area does not protect in the righ way against
forming of this phenomenon. Moreover, part of the belt, which is situated on the field
with a smooth surface has tendency to side slipping off, which may cause complete
slipping of the belt from the corner protector during transport. All this makes working
inconveniences of corner protectors as known so far because it may cause increase
of risk of damage of cargo connected with deformation of corner protector in the mentioned
area and slipping of the belt which fastens cargo.
[0015] In order to eliminate the above inconveniences, one designed a corner protector which
construction and disposal of ribs decidedly decrease possibility of occurrence of
deformation of the corner protector and protect against side slipping of the belt,
which fastens a cargo, from the corner protector.
[0016] A corner protector, according to the invention, having the shape of one element in
a shape of an angle which consists of two arms situated towards each other in an unbiased
state at an angle larger than an angle of 90 degrees, moreover on the outer surface
of the corner protector there are bulging reinforcing ribs situated along longer sides
of the arms, and among bulging reinforcing ribs there are stiffening ribs, which are
situated along each arm from the top of the corner protector towards shorter side
of the arm and these stiffening ribs are parallel to one another and to bulging reinforcing
ribs, whereas on each arm there is a field with smooth surface and this field is situated
among ribs and bulging reinforcing ribs,
characterised in that, the stiffening ribs coming out of the top are joined by transversely situated partitions
which make transverse stiffening ribs, and the field, which is among ribs and bulging
reinforcing ribs is situated below upper surface of bulging reinforcing ribs.
[0017] Bulging reinforcing ribs, in cross section, have the shape of a non-symmetrical trapezoid,
in which a side, situated from the side of the stiffening ribs, is inclined towards
the surface of arms at smaller angle than angle of inclination of the side situated
from the side of the rim.
[0018] From the side view, tops of ribs, situated from outer and inner side, make straight
lines.
[0019] Additional transverse ribs, situated among longitudinally situated stiffening ribs,
increase stiffness in this area of the corner protector and thus decreases possibility
of occurrence of deformation near the top of the corner protector. Construction of
stiffening ribs and bulging reinforcing ribs in the corner protector, according to
the invention prevents damage of corner edges of transported cargo, esspecially paper
in colums. Lowered position of a field towards the upper surface of bulging reinforcing
ribs makes a seat, in which one may effectivelly mount a belt fastening a cargo and
thus prevent slipping of the belt from the arms of the corner edge protector.
[0020] The invention is represented in the example, on the drawing, on which fig.1 shows
a corner protector from the front view, fig 2 - a corner protector from above, fig.3
- a corner protector from the side view, fig 4 - a corner protector from the perspective
view, fig.5 - a corner protector the view from bellow, fig.6 - a corner protector
in the longitudinal section A-A, marked on fig 2, fig .7 - a corner protector in the
transverse section B-B, marked on fig.2, and fig.8 - the corner protector in the transverse
section C-C , marked on fig.2.
[0021] The corner protector, according to the invention is made of plastic and has the shape
of one element in a shape of an angle which consists of two arms
1 situated towards each other in an unbiased state at an angle a little larger that
an angle of 90 degrees. The top
2 of an angle , in a point of contact of two arms
1 is rounded. On the outer surface of the corner protector there are bulging reinforcing
ribs
3 situated along longer sides
4. The bulging reinforcing ribs
3 , with their ends are leant towards shorter sides
5 of arms
1. The bulging reinforcing ribs
3 make a full line line passing also through a rounded top
2.
[0022] Among bulging reinforcing ribs
3 there are situated stiffening ribs, which are situated in parallel to one other and
to bulging reinforcing ribs
3. Stiffening ribs are situated along each arm
1 from the top
2 of the corner protector towards a shorter side
5 of an arm
1, moreover ribs
6 coming out of the top
2 are situated from the outer side and they make ribs
7 situated from the inner side, which next make ribs
8 situated from the outer side. The rims of longer sides
4 of arms
1 are thickened and they make an element
9 sticking outside a surface.
[0023] On each arm
1 , among ribs
6 , situated from outer side, and ribs
8 which are also situated from outer side, there is a field
10 with a smooth surface, which is situated bellow the upper surface of bulging reinforcing
ribs
3.
[0024] The ribs
6, which are on the outer side, have a flat base
11 from the inner side but fields
10 with smooth surface situated on the outer surface have, from the inner side, ribs
7 which are situated longitudinally relatively to longer sides
4 of the corner protector.
[0025] The stiffening ribs
6 coming out of the top
2 are connected by transversely situated partitions
12 which make transverse stiffening ribs. Bulging reinforcing ribs
3 , in crosswise section, have a shape of a non-symmetrical trapezoid, in which a side
13 , situated from sides of stiffening ribs
6, is inclined towards the surface of arms
1 at a smaller angle than an angle of inclination of a side
14 situated from the side of a rim.
[0026] From a side view tops
15 of ribs
6,
7,
8, situated from outer and inner side, make straight lines.
[0027] Among bulging reinforcing ribs
3 there are three stiffening ribs
6 which next make also three ribs
7 situated from the inner side.
[0028] One puts a corner protector on corner edges of carried cargo. The belt, which fastens
the cargo, one puts on outer surfaces of arms
1 in such a way that the belt takes place on ribs
6 between bulging reinforcing ribs
3 and on a field
10 with a smooth surface between bulging reinforcing ribs
3.
[0029] After tightening fastening belts, a corner protector deforms and presses with its
arms
1 against sides of a cargo, by means of which the belt in corner edges does not have
direct contact with a cargo.
1. A corner protector, having the shape of one element in a shape of an angle which consists
of two arms situated towards each other in an unbiased state at an angle larger than
an angle of 90 degrees, moreover on the outer surface of the corner protector there
are bulging reinforcing ribs situated along longer sides of the arms, and among bulging
reinforcing ribs there are stiffening ribs, which are situated along each arm from
the top of the corner protector towards shorter side of the arm and these stiffening
ribs are parallel to one another and to bulging reinforcing ribs, whereas on each
arm there is a field with smooth surface and this field is situated among ribs and
bulging reinforcing ribs, characterised in that, the stiffening ribs ( 6 ) coming out of the top ( 2 ) are joined by transversely situated partitions ( 12 ) which make transverse stiffening ribs, and the field ( 10 ), which is among ribs ( 6 , 8 ) and bulging reinforcing ribs ( 3 ) is situated below upper surface of bulging reinforcing ribs ( 3 ).
2. A corner protector, according to claim 1, characterised in that, bulging reinforcing ribs( 3 ), in cross section, have the shape of a non-symmetrical trapezoid, in which a side
(13), situated from the side of the stiffening ribs ( 6 ), is inclined towards the surface of arms ( 1 ) at smaller angle than angle of inclination of the side ( 14 ) situated from the side of the rim.
3. A corner protector, according to claim 1, characterised in that, from the side view, tops ( 15 ) of ribs (6 , 7 , 8 ), situated from outer and inner side, make straight lines.