Note: Descriptions are shown in the official language in which they were submitted.
CA 02627869 2008-03-31
MEASURING TOOL COMBINING PROTRACTOR AND CARPENTER'S
INK MARKER
The present invention relates to a measuring tool and, more
particularly, to a measuring tool to measure an angle or dimension of an
object,
such as a sheet plate, floor board, tile and the like.
A conventional measuring tool comprises a ruler, a protractor and a
carpenter's ink marker and the like. When an object, such as a wooden sheet
plate, floor board, tile and the like, is to be measured and located, the
ruler, the
protractor and the carpenter's ink marker co-operate to form inclined lines or
l0 vertical lines on the surface of the object. Thus, a user can cut the
object along
the lines formed by co-operation of the ruler, the protractor and the
carpenter's
ink marker so that the object is cut to have different shapes according to the
user's requirement. However, the user has to hold the ruler, the protractor
and
the carpenter's ink marker respectively to proceed the measuring actions,
thereby greatly causing inconvenience to the user in the measuring process,
and thereby decreasing the precision of measurement.
In accordance with the present invention, there is provided a
measuring tool, comprising a basis plate, a protractor mounted on the basis
plate, and a carpenter's ink marker integrally combined with the protractor
and
provided with a retractable inking line attached to the protractor.
The primary objective of the present invention is to provide a
measuring tool combining a protractor and a carpenter's ink marker.
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Another objective of the present invention is to provide a measuring
tool, wherein the carpenter's ink marker and the protractor are combined to
measure and locate a large-scale or small-scale object of a building easily
and
quickly, thereby facilitating a user operating the measuring tool, and thereby
saving the working time.
A further objective of the present invention is to provide a measuring
tool, wherein the protractor is located at different positions of the object,
and
the inking line is movable with the carpenter's ink marker to align with the
angle scales of the protractor and to form inclined or vertical lines on the
surface of the object, so that the object is cut along the lines formed by the
inking line to have different shapes according to the user's requirement.
A further objective of the present invention is to provide a measuring
tool, wherein the carpenter's ink marker is received in the receiving seat
when
not in use, thereby facilitating the user storing and carrying the carpenter's
ink
marker.
Further benefits and advantages of the present invention will become
apparent after a careful reading of the detailed description with appropriate
reference to the accompanying drawings.
In the drawings:
Fig. 1 is a perspective view of a measuring tool in accordance with
the preferred embodiment of the present invention.
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Fig. 2 is an exploded perspective view of the measuring tool as
shown in Fig. 1.
Fig. 3 is a schematic operational view of the measuring tool as shown
in Fig. 1 in use.
Fig. 4 is a perspective operational view of a measuring tool in
accordance with another preferred embodiment of the present invention.
Figs. 5-12 show the measuring tool for measuring a wall plate.
Figs. 13-20 show the measuring tool for measuring a roof.
Figs. 21-30 show the measuring tool for measuring a floor board.
Figs. 31-38 show the measuring tool for measuring a tile.
Figs. 39-43 show the measuring tool for measuring a door frame.
Figs. 44-50 show the measuring tool for measuring a polygonal
frame.
Referring to the drawings and initially to Figs. 1-3, a measuring tool
in accordance with the preferred embodiment of the present invention
comprises a basis plate 10, a protractor 30 mounted on the basis plate 10, a
carpenter's ink marker 20 integrally combined with the protractor 30 and
provided with a retractable inking line 21 attached to the protractor 30, and
a
receiving seat 11 mounted on the basis plate 10 to receive the carpenter's ink
marker 20 when the carpenter's ink marker 20 is not in use.
The basis plate 10 is a rectangular plate and has a surface provided
with a plurality of screw bores 12. The basis plate 10 has a side provided
with a
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receiving space 13 to receive a level 14 which is located between the basis
plate 10 and the carpenter's ink marker 20.
The protractor 30 has a first side provided with a fixing portion 36
and a second side provided with a plurality of angle scales 31. The fixing
portion 36 of the protractor 30 is located at a central portion of the angle
scales
31 and provided with a positioning slit 34. The first side of the protractor
30 is
provided with a plurality of through holes 32, and the measuring tool further
comprises a plurality of locking screws 33 extending through the through holes
32 of the protractor 30 and screwed into the screw bores 12 of the basis plate
10
to lock the protractor 30 onto the basis plate 10. The protractor 30 has an
inside
provided with a substantially semi-circular opening 35 located between the
fixing portion 36 and the angle scales 31.
The inking line 21 is movable with the carpenter's ink marker 20 to
align with any one of the angle scales 31 of the protractor 30. The inking
line
21 of the carpenter's ink marker 20 has a first end 24 retractably extending
from the carpenter's ink marker 20 and a second end 26 secured to the fixing
portion 36 of the protractor 30. The second end 26 of the inking line 21 is
located at the central portion of the angle scales 31 of the protractor 30 and
provided with a positioning bar 22 secured in the positioning slit 34 of the
protractor 30 to attach the second end 26 of the inking line 21 to the fixing
portion 36 of the protractor 30.
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In practice, the measuring tool is initially placed on a surface of an
object. When the carpenter's ink marker 20 is combined with the protractor 30
to perform a measuring function, the carpenter's ink marker 20 is movable
outwardly relative to the protractor 30 to pull the inking line 21 outwardly
from
the carpenter's ink marker 20 as shown in Fig. 3. In such a manner, the inking
line 21 is movable with the carpenter's ink marker 20 to align with any one of
the angle scales 31 of the protractor 30. When the inking line 21 is movable
to
align with a selective one of the angle scales 31 of the protractor 30, the
inking
line 21 is pressed onto the surface of the object to form an inclined line on
the
surface of the object so as to measure an angle on the surface of the object
exactly.
Referring to Fig. 4, the protractor 30 is mounted on the basis plate 10
by bonding.
Referring to Figs. 5-12, the measuring tool is used to measure and
locate a wooden wall plate 40. In practice, the protractor 30 is located at a
position of the wall plate 40. Then, the inking line 21 is movable with the
carpenter's ink marker 20 to align with a selective one of the angle scales 31
of
the protractor 30, so that the inking line 21 reaches the angle to be measured
and located. Then, the inking line 21 is pressed onto the surface of the wall
plate 40 to form an inclined line on the surface of the wall plate 40. In such
a
manner, the protractor 30 is located at different positions of the wall plate
40,
and the inking line 21 is movable with the carpenter's ink marker 20 to form
an
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inclined line, two intersecting oblique lines or a vertical line on the
surface of
the wall plate 40. Then, the wall plate 40 is cut along the lines formed by
the
inking line 21 so that the wall plate 40 has different shapes according to the
user's requirement.
Referring to Figs. 13-20, the measuring tool is used to measure and
locate a wooden roof 50. In practice, the protractor 30 is located at a
position of
the roof 50. Then, the inking line 21 is movable with the carpenter's ink
marker
20 to align with a selective one of the angle scales 31 of the protractor 30,
so
that the inking line 21 reaches the angle to be measured and located. Then,
the
inking line 21 is pressed onto the surface of the roof 50 to form an inclined
line
on the surface of the roof 50. In such a manner, the protractor 30 is located
at
different positions of the roof 50, and the inking line 21 is movable with the
carpenter's ink marker 20 to form an inclined line or two intersecting oblique
lines on the surface of the roof 50. Then, the roof 50 is cut along the lines
formed by the inking line 21 so that the roof 50 has different shapes
according
to the user's requirement.
Referring to Figs. 21-30, the measuring tool is used to measure and
locate a wooden floor board 60. In practice, the protractor 30 is located at a
position of the floor board 60. Then, the inking line 21 is movable with the
carpenter's ink marker 20 to align with a selective one of the angle scales 31
of
the protractor 30, so that the inking line 21 reaches the angle to be measured
and located. Then, the inking line 21 is pressed onto the surface of the floor
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board 60 to form an inclined line on the surface of the floor board 60. In
such a
manner, the protractor 30 is located at different positions of the floor board
60,
and the inking line 21 is movable with the carpenter's ink marker 20 to form
an
inclined line or a vertical line on the surface of the floor board 60. Then,
the
floor board 60 is cut along the lines formed by the inking line 21 so that the
floor board 60 has different shapes according to the user's requirement.
Referring to Figs. 31-38, the measuring tool is used to measure and
locate a tile 70. In practice, the protractor 30 is located at a position of
the tile
70. Then, the inking line 21 is movable with the carpenter's ink marker 20 to
align with a selective one of the angle scales 31 of the protractor 30, so
that the
inking line 21 reaches the angle to be measured and located. Then, the inking
line 21 is pressed onto the surface of the tile 70 to form an inclined line on
the
surface of the tile 70. In such a manner, the protractor 30 is located at
different
positions of the tile 70, and the inking line 21 is movable with the
carpenter's
ink marker 20 to form an inclined line on the surface of the tile 70. Then,
the
tile 70 is cut along the line formed by the inking line 21 so that the tile 70
has
different shapes according to the user's requirement.
Referring to Figs. 39-43, the measuring tool is used to measure and
locate a wooden door frame 80. In practice, the protractor 30 is located at a
position of the door frame 80. Then, the inking line 21 is movable with the
carpenter's ink marker 20 to align with a selective one of the angle scales 31
of
the protractor 30, so that the inking line 21 reaches the angle to be measured
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and located. Then, the inking line 21 is pressed onto the surface of the door
frame 80 to form an inclined line on the surface of the door frame 80. In such
a
manner, the protractor 30 is located at different positions of the door frame
80,
and the inking line 21 is movable with the carpenter's ink marker 20 to form
an
-inclined line or a vertical line on the surface of the door frame 80. Then,
the
door frame 80 is cut along the lines formed by the inking line 21 so that the
door frame 80 has different shapes according to the user's requirement.
Referring to Figs. 44-50, the measuring tool is used to measure and
locate a polygonal frame 90 (for a large-scale landscape garden). In practice,
the protractor 30 is located at a position of the polygonal frame 90. Then,
the
inking line 21 is movable with the carpenter's ink marker 20 to align with a
selective one of the angle scales 31 of the protractor 30, so that the inking
line
21 reaches the angle to be measured and located. Then, the inking line 21 is
pressed onto the surface of the polygonal frame 90 to form an inclined line on
the surface of the polygonal frame 90. In such a manner, the protractor 30 is
located at different positions of the polygonal frame 90, and the inking line
21
is movable with the carpenter's ink marker 20 to form an inclined line on the
surface of the polygonal frame 90. Then, the polygonal frame 90 is cut along
the line formed by the inking line 21 so that the polygonal frame 90 has
different shapes according to the user's requirement.
Accordingly, the carpenter's ink marker 20 and the protractor 30 are
combined to measure and locate a large-scale or small-scale object of a
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building easily and quickly, thereby facilitating a user operating the
measuring
tool, and thereby saving the working time. In addition, the protractor 30 is
located at different positions of the object, and the inking line 21 is
movable
with the carpenter's ink marker 20 to align with the angle scales 31 of the
protractor 30 and to form inclined or vertical lines on the surface of the
object,
so that the object is cut along the lines formed by the inking line 21 to have
different shapes according to the user's requirement. Further, the carpenter's
ink marker 20 is received in the receiving seat 11 when not in use, thereby
facilitating the user storing and carrying the carpenter's ink marker 20.
Although the invention has been explained in relation to its preferred
embodiment(s) as mentioned above, it is to be understood that many other
possible modifications and variations can be made without departing from the
scope of the present invention. It is, therefore, contemplated that the
appended
claim or claims will cover such modifications and variations that fall within
the
true scope of the invention.
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