CASSE-CARREAUX ELECTRIQUE

POWERED TILE BREAKER

Abrégé français

Un briseur de carreaux électrique comprend un châssis ajustable, qui comprend un élément de guide, un arbre pliant, un élément de base et des roues. Lélément de base retient un assemblage de couteau, qui comprend un moteur électrique principal situé à lintérieur dun carter de moteur. Le moteur alimente le couteau. Lassemblage de couteau présente un angle ajustable au moyen dun actionneur, qui consiste en un moteur électrique secondaire entraînant un piston. Le piston comprend une extrémité en raccord rotatif avec la base, et lactionneur est en raccord rotatif avec un levier, qui sétend de lassemblage du couteau et est raccordé à un point darticulation.

Abrégé anglais

A powered tile breaker has an adjustable frame and the frame is further comprised of a handlebar member, a foldable shaft, a base member, and wheels. The base member holds a chiseling assembly which comprises a main electric motor located inside a motor casing. The motor powers a chisel member. The chiseling assembly is angularly adjustable by way of an actuator member which consists in a secondary electric motor driving a piston. The piston has one end rotationally connected to the base member, and the actuator member is rotationally connected to a lever member which extends from the chiseling assembly and which connects at a pivot point.

Revendications

CLAIMS
1. A powered tile breaker having an adjustable frame and said frame further
comprised of a
handlebar member connected to a foldable shaft, connected to a base member
which
connects to wheels; said base member holding a chiseling assembly; said
chiseling assembly
comprising a main electric motor located inside a motor casing, said motor
powering a chisel
member; said chiseling assembly angularly adjustable by way of an actuator
member which
consists in a secondary electric motor driving a piston; said piston having
one end rotationally
connected to the base member, and said actuator member is rotationally
connected to a lever
member which extends from said chiseling assembly and which connects at a
pivot point; a
knee push member connected to a base portion of the foldable shaft and acting
as a low
center of gravity secondary pushing point for pushing said tile breaker
forward.
2. The powered tile breaker of claim 1 wherein said chiseling assembly being
adjustable to
angles adjustable between 0 and 60 degrees in a fluid and continuous range
while said tile
breaker is in operating mode.
3. The powered tile breaker of claim 1 wherein said angle adjustment being
electrically
controlled by way of a switch.
4. The powered tile breaker of claim 1 wherein a set of indicia, and an
indicia pointer, located
on a side of said motor casing serve as reference for indicating an angle of
rotation of said
motor casing as it pivots around said pivot point.
5. The powered tile breaker of claim 1 wherein said breaker also includes a
stopper member
for stopping said angularly adjustable chisel assembly.
6. The powered tile breaker of claim 1 wherein said shaft having a hinge and a
means for
locking so that said shaft can be folded.
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Date Recue/Date Received 2021-12-31

7. The powered tile breaker of claim 1 wherein said chiseling assembly having
a "Y" shaped
extension member to plow away broken tiles aside.
8. The powered tile breaker of claim 1 wherein said shaft is adjustable
angularly in
combination with the angular adjustment of said chiseling assembly.
Date Recue/Date Received 2021-12-31

Description

CA 02911896 2015-11-16
Powered tile breaker
FIELD OF THE INVENTION
[001] The present invention relates generally to power tools but more
particularly to a powered tile breaker.
BACKGROUND OF THE INVENTION
[002] Breaking ceramic tiles is a very hard job and special chisels have been
developed for that task. Still, doing that manually is hard and takes a
long time. Powered devices have been developed over the years such
as:
[003] US20070228805 by Due which describes a power hammer apparatus
including a cart and a power hammer arrangement mounted at a front
region of the cart. The power hammer arrangement includes a
reciprocating bit that contacts a working surface to break up the working
surface as the power hammer is advanced by the power-driven cart.
[004] US8240682 by Kennard describes a jackhammer trolley comprising a
mainframe member with a clamp member at the bottom end and an
extension bracket portion at the top end, a base frame member
removably attached to the mainframe member by pivoting joints with at
least one wheel member removably attached to its bottom, a handle
member having a hand lever attached to said top end, and at least one
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vibration dampener fixed to said top or bottom end of the mainframe
member.
[005] There are several drawbacks and limitations the the prior art most
notably in the possible adjustments which are limited to a few positions,
which means that not every user can find an optimum ergonomic
position in which to work, as not all sizes are covered. The machine of
the prior art, lack some basic folding capabilities which can make the
machine more compact for easy transportation even in a passenger car.
Most importantly, the angle of the chisel is limited to specific angles that
can only be modiified prior to using the machine, not in use. Also, there
are limitations in the adjustments, more particularly the handle part
which may not be suitable for a wide range of user sizes.
SUMMARY OF THE INVENTION
[006] In view of the foregoing disadvantages inherent in the known devices
now present in the prior art, the present invention, which will be
described subsequently in greater detail, is to provide objects and
advantages which are:
[007] To provide for a powered chiseling tool that is portable, and
transportable. Various adjustments to keep the device in a most
ergonomic fashion no matter the height of the user. A means of
adjusting the angle of the chisel in a wide variety of angles, on the fly
while operating the machine. A knee push member which lowers the
center of gravity so that a user can keep his stability while giving the
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maximum pushing forward thrust to the machine should a patch of
tiles be more difficult to remove.
[008] In order to do so, the invention comprises an adjustable frame and the
frame is further comprised of a handlebar member, a foldable shaft, a
base member, and wheels. The base member holds a chiseling
assembly which comprises a main electric motor located inside a
motor casing. The motor powers a chisel member.
[009] The chiseling assembly is angularly adjustable by way of an actuator
member which consists in a secondary electric motor driving a piston.
The piston has one end rotationally connected to the base member,
and the actuator member is rotationally connected to a lever member
which extends from the chiseling assembly and which connects at a
pivot point.
[0010] The chiseling assembly is adjustable to any angles in a fluid and
continuous range while the tile breaker in operating mode.
[0011] The angle adjustment mode is electrically controlled by way of a
switch.
[0012] The angles are adjustable between 0 and 60 degrees.
[0013] A set of indicia, and an indicia pointer, located on the side of the
motor
casing serve as reference for indicating the angle of rotation of the
motor casing as it pivots around the pivot point.
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[0014] A stopper member for stopping the rotation of the chisel assembly.
[0015] The shaft has a hinge and lock means so that it can be folded.
[0016] The chiseling assembly has a "Y" shaped extension member to plow
away broken tiles aside.
[0017] A knee push member acts as a low center of gravity secondary
pushing point for pushing the tile breaker forward.
[0018] The shaft is adjustable angularly in combination with the angular
adjustment of the chiselling assembly.
[0019] There has thus been outlined, rather broadly, the more important
features of the invention in order that the detailed description thereof
that follows may be better understood, and in order that the present
contribution to the art may be better appreciated. There are additional
features of the invention that will be described hereinafter and which will
form the subject matter of the claims appended hereto.
15[0020] In this respect, before explaining at least one embodiment of the
invention in detail, it is to be understood that the invention is not limited
in its application to the details of construction and to the arrangements
of the components set forth in the following description or illustrated in
the drawings. The invention is capable of other embodiments and of
being practiced and carried out in various ways. Also, it is to be
understood that the phraseology and terminology employed herein are
for the purpose of description and should not be regarded as limiting.
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[0021] As such, those skilled in the art will appreciate that the conception,
upon
which this disclosure is based, may readily be utilized as a basis for the
designing of other structures, methods and systems for carrying out the
several purposes of the present invention. It is important, therefore, that
the claims be regarded as including such equivalent constructions
insofar as they do not depart from the spirit and scope of the present
invention.
[0022] These together with other objects of the invention, along with the
various
features of novelty which characterize the invention, are pointed out with
particularity in the claims annexed to and forming a part of this
disclosure. For a better understanding of the invention, its operating
advantages and the specific objects attained by its uses, reference
should be made to the accompanying drawings and descriptive matter
which contains illustrated preferred embodiment of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figs. la-b Isometric view of the invention with a user and close up
view
of the chisel assembly.
[0024] Figs. 2a-b Side views showing two angular configurations of the of the
chisel assembly.
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[0025] Figs. 3a-d Side views showing all adjustment angles.
[0026] Figs. 4a-b Side views showing two shaft positions.
[0027] Fig. 5 Isometric view of the chisel assembly.
[0028] Fig. 6 Isometric view showing the adjustment means for the chiseling
assembly.
DETAILED DESCRIPTION
[0029] A powered tile breaker (10) has an adjustable frame (12) having a
handlebar member (14), a shaft (16), and wheels (36) to hold a
chiseling assembly (18) which is comprised of a main electric motor (not
shown), located inside a motor casing (22), and powers a chisel
member (24) located at ground level.
[0030] The chiseling assembly (18) is angularly adjustable by way of an
actuator member (26) which consists in a secondary electric motor (28)
driving a piston (30). The piston (30) has one end rotationally connected
to a base member (50), and the actuator member (26) is rotationally
connected to a lever member (54) which extends from the chiseling
assembly (18) and which connects at a pivot point (56).
[0031] This allows for the adjustment of the chiseling assembly (18) to any
angles in a fluid and continuous range of between 0 to 60 degrees.,
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while the tile breaker (10) is in operation. The adjustment means is
controlled by a simple "up and down" button (32) located on the
handlebar member (14).
A set of indicia (34), and an indicia pointer (37), located on the side of
the motor casing is used as a reference to indicate the angle of rotation
of the motor casing (22) as it pivots around the pivot point (56), and a
stopper member (35) stops the rotation to prevent the chisel member
(24) from pointing backwards.
[0032] The shaft (16) has a hinge and lock means (38) so that it can be folded
in half for easy transportation in a small vehicle, for example.
[0033] The chiseling assembly (18) has a "Y" shaped extension member (42)
which acts as a plow to push broken tiles aside. It also acts as the pivot
point (56) for rotating the chiseling assembly (18).
[0034] There is, of course, a main on/off switch (44) on the handlebar member
(14) to turn the tile breaker (10) on or off.
[0035] At the rear of the tile breaker, (10) and facing a user (46), is a knee
push
member (48) which allows for the user (46) to use his knees (one knee
at a time) to further push the tile breaker (10) forward by exerting the
upper body far less and as such, reduce stress related injury.
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[0036] The shaft (16) can be adjusted angularly so as to provide a maximum
level of adjustments so as to be customizable to any given user (46).
[0037] As to a further discussion of the manner of usage and operation of the
present invention, the same should be apparent from the above
description. Accordingly, no further discussion relating to the manner of
usage and operation will be provided.
[0038] With respect to the above description then, it is to be realized that
the
optimum dimensional relationships for the parts of the invention, to
include variations in size, materials, shape, form, function and manner
of operation, assembly and use, are deemed readily apparent and
obvious to one skilled in the art, and all equivalent relationships to those
illustrated in the drawings and described in the specification are
intended to be encompassed by the present invention. Therefore, the
foregoing is considered as illustrative only of the principles of the
invention. Further, since numerous modifications and changes will
readily occur to those skilled in the art, it is not desired to limit the
invention to the exact construction and operation shown and described,
and accordingly, all suitable modifications and equivalents may be
resorted to, falling within the scope of the invention.
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Dessin représentatif