Note: Descriptions are shown in the official language in which they were submitted.
CA 02735555 2011-02-28
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PCT/BR2009/000280
CONSTRUCTIVE EMBODIMENTS INTRODUCED IN STOVE
COMPONENTS
Field of the invention
This invention belongs to the mechanical engineering field, specifically
electromechanical devices, commonly known as household appliances,
particularly constructive arrangements introduced in stove components.
Background of the invention
Currently, in the state of the art, the fastening of stove parts for its
arrangement and assembly is made through the use of fastening devices,
such as screws or rivets, in addition to joint pieces, as illustrated in
Figure
7. This system, applied to the pieces set that make up the equipment, adds
cost to the final product, considering not only screws, clinches and pieces
for this purpose, but also the time and manpower employed to execute the
task.
For example, the assembly of the stove table to the side pieces is made by
using four screws or rivets, as shown in Figure 7A, plus additional pieces to
unite the parts. All this operation, usually manual, requires times to achieve
a reasonable accuracy.
In other operation, the union of the table with the frontal finishing, the
table
is fastened on the sides of the chamber and its frontal part only overlapped
to the finishing, which is fixed with screws in the chamber body. This
system is not ideal because the table is only overlapped to the finishing,
and an alignment gap may occur, other than eventually expose table barbs
in the frontal part of the product.
In incubator doors, comprised by two hinges and a handle, with two
stamped pieces assembled opposing one another, plus corner finishing, the
union of such pieces is made, usually, through at least four rivets, which
remain exposed and subject to user interaction, prejudicing the product
aesthetic, as well as safety during operation.
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State of Art Analysis
The document PI 9600036 8A presents a stove component assembly
system detailing a fitting system of the intermediate table, which differs
from the present invention for not mentioning the same approach regarding
stamped bolts and clamps.
The document US 2533797 describes bolt type fitting devices and
transverse openings that differs from the present invention for not being
stamped on the piece itself, but further added through fastening pieces.
Brief description of the embodiment
This invention is related to constructive embodiment introduced in stove
components, comprised by couplings, which are associations of orifices
and cuttings, bolt type, stamped, whose shapes, dimensions and
arrangements simplify its fabrication and assembly, making unnecessary
the use of accessories and tools for the assembly process of the table with
the sides, table with the frontal finishing and stove incubator door.
Description of Figures
Figure 1 presents an overview of the table fitting (3) with the stove side
(4),
with a perspective view of the pieces in position prior to the fitting. Figure
1A shows a perspective view of the bolt details (1), located in the stove
side (4), and of the corresponding orifice (2), located in the stove table
(3).
Figure 2 illustrates the stages of the table fitting (3) with the stove side
(4).
Figure 2A shows a sidelong view of the table (3) and of the stove side (4)
prior to the fitting, while Figure 2B shows a cut-way view of such sidelong
view. Figure 2C shows a sidelong view of the table (3) and the stove side
(4) fitted, more detailed in Figure 2E, illustrating the bolt (1) at coupling
position. Figure 2D shows a cut-way view of the sidelong view of the fitted
pieces, more detailed in Figure 2F.
Figure 3 presents an alternative of the table fitting (3) with the stove side
(4), with a perspective view of the pieces in position prior to the fitting.
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Figure 3A shows a perspective view of the bolt details (1), located in the
stove table (3), and of the corresponding orifice (2), placed in the stove
side
(4).
Figure 4 illustrates the stages of the table fitting (3) with the stove side
(4).
Figure 4A shows a sidelong view of the table (3) and of the stove side (4)
prior to the fitting, while Figure 4B shows a cut-way view of this sidelong
view. Figure 4C shows a sidelong view of the table (3) and of the stove
side (4) fitted, more detailed in Figure 4E, illustrating the bolt (1) at
coupling position. Figure 4D shows a cut-way view of the sidelong view of
the fitted pieces, detailed in Figure 4F.
Figure 5 illustrates the coupling system of the table (3) with the frontal
finishing (5). Figure 5A presents a frontal view of the finishing (5), while
Figure 5B shows an upper view of the same finishing (5). Figure SC
illustrates an upper partial view of the table (3), with a cut-way detail to
view the bolts (1). Figure 5D illustrates the fitting sequence of the
finishing
(5) on the table (3), illustrating the bolts (1) on the table (3) and the
corresponding orifices (2) in the finishing (5), as well as the fitting
motions
and the side displacement for fastening. Figure 5E shows a perspective
view of transversal section of mounted parts, illustrating the table fastening
shape (3) with the finishing (5). Figure 5F presents a perspective view of
the table (3) highlighted, viewing, in cut-way, the coupling bolts (1).
Figure 6 shows two panoramic views of the incubator door, pointing the
coupling mode of the two component pieces (6a and 6b). Figure 6A shows
a horizontal perspective of both pieces (6a and 6b) at coupling position.
Figure 6B shows a vertical perspective of both pieces (6a and 6b) at
coupling position. Figure 6C shows the perspective of the coupling bolt (7)
detail and the corresponding orifice (8), both stamped on the pieces (6a and
6b).
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Figure 7 shows a frontal view of a stove and the current assembly
technique, with a detail of the fastening system in Figure 7A, in which are
presented the screws (9) that allow the fastening between the parts, namely
the table (3), side wall (4) and the reinforcement (10).
Detailed Description of the embodiment
This invention describes constructive arrangements introduced in stove
components, comprised by couplings, which consist of associations of
orifices (2) and bolt type cuttings (1), stamped on the component parts.
Such devices are applied to assemble the table (3) with the stove side (4),
as shown in Figure 1 to 4, of the table (3) with the frontal finishing (5), in
Figure 5, and of both component parts (6a and 6b) of the stove incubator
door, in Figure 6.
In one aspect of this invention, the stove side (4) is supplied with a bolt
(1),
hook-shaped, as Figures lA and 2E, stamped on its upper border, having
the stove table (3) as a slit (2) on its side lower tab, coincident with the
hook (1) of the side (4), as illustrated in Figure 1A. Thus, the table (3),
overlapped on the sides (4) and moving some centimeters back, lock the
pieces vertically, while limiting the backward motion, as illustrated in
Figures 2A and 2C. After that, the table (3) is fastened at its rear part to
the
chamber through only two screws.
For an alternative arrangement, the coupling system between the table (3)
and the side (4) can be inverted, so the side (4) could match the slit (2) and
the table (3) has the bolt (1) hook-shaped, as shown in Figure 3A. The
operation mode to lock is identical to the previous arrangement, as it may
be observed in Figures 4A and 4C.
In other aspect of the present invention, it is provided the stove table (3)
with two or more bolts (1), hook-shaped, stamped on its front lower border
and turned inward, as shown in Figure Sc, while the finishing (5) has a
channel with two slits (2) on its upper tab, coincident with the table hooks
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(1), shown in Figure 5D. This, when the finishing (5) is coupled with the
table (3) tab and displaced a few millimeters sideward, the pieces are
locked horizontally, not allowing a gap between them, as observed in
Figure 5D. After that, the finishing (5) is fastened, in its lower part, to
the
chamber through two screws. This routine provides, also, a front finishing
free from barbs, contributing to the equipment aesthetic and safety.
In a third aspect of the invention, the system can be applied also the
assembly of the stove heater door, providing the external half (6a) of the
incubator door with two bolts (7) stamped on its upper border, as shown in
Figure 6C, which, upon assembly, are coincident with two slits (8) existing
on the upper border of the inner half (6b) of the door, as illustrated in
Figure 6C. Thus, the two pieces (6a and 6b) are kept coupled and united by
the upper border of both pieces (6a and 6b), and after, the external half (6a)
is fastened to the inner half (6b) on its lower part through three rivets.
Then, the upper border of the incubator door becomes free of rivets.
This invention is not limited to the representations mentioned or illustrated
herein, and it has to be comprehended in its wide scope. Many changes and
other representations of the invention will come in mind of those skilled in
the technique to which this invention belongs, having the learning benefit
presented in previous descriptions and attached drawings. Further, it is to
be understood that the invention is not limited to the disclosed specific
shape and that changes and other shapes are understood as enclosed within
the scope of the attached claims. Although specific terms are nominated
herein, they are only used in a generic and descriptive form and not for a
limiting purpose.
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Another aspect of the invention relates to constructive arrangements
introduced in stove
components, the stove components are adapted to be coupled together, wherein
the
constructive arrangements comprise grooves and latches stamped on the stove
components
wherein the latches on a stove component are fitted by means of coupling and
sliding on the
respective grooves on another stove component for directing the movements of
fixation and
for coupling the stove components to each other.
5a
