Information
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Patent Grant
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6308879
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Patent Number
6,308,879
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Date Filed
Friday, April 14, 200024 years ago
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Date Issued
Tuesday, October 30, 200123 years ago
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Inventors
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Original Assignees
-
Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 227 113
- 227 119
- 227 130
- 227 131
- 227 147
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International Classifications
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Abstract
A nailer includes a head and a tube is connected to a bottom of the head. A protrusion extends from an inside of the tube and an aperture is defined through the protrusion and the tube. A magnet is engaged with the aperture and a position member is mounted to the tube and seals the aperture so that the magnet will not drop from the aperture. The protrusion ensures a nail attracted by the magnet to orient an upright direction before it is ejected.
Description
FIELD OF THE INVENTION
The present invention relates to a nailer that has a ring enclosing a magnet in a tube to prevent loss of the magnetic force of the magnet. A protrusion extends from an inside of the tube to avoid nails from being inclined relative to a longitudinal axis of the tube.
BACKGROUND OF THE INVENTION
A conventional pneumatic nailer is illustrated in FIG.
1
and generally includes a head
10
connected to pneumatic source and a neck
12
extends from the head
10
. A tube
11
is connected to the neck
12
and has a magnet
15
engaged in the tube
11
so as to attract nails
13
in the tube
11
before the nails
13
are ejected into an object
14
. In order to maintain the magnetic force of the magnet
15
in the tube
11
, the material of the tube
11
has to be especially chosen so that the feature of the magnet
15
will not fail. However, the material of the tube
11
is expensive. Besides, nails
13
in the tube
11
tend to be inclined relative to a longitudinal axis of the tube
11
as shown because the diameter of the tube
11
is larger than the nails
13
. Therefore, the nails
13
could be ejected into the object
14
inclinedly. Furthermore, the magnet
15
could drop from the tube
11
by vibration.
The present invention intends to provide a nailer that has a positioning means to securely position the magnet in the tube. A protrusion extends from an inside of the tube to let the nails attracted by the magnet orient a correct direction in the tube.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a nailer comprising a head having a neck connected to a bottom of the head and a tube extending from the neck. A protrusion extends from an inside of the tube and an aperture is defined through the protrusion and the tube so as to receive a magnet in the aperture. A position member is mounted to an outside of the tube and seals the aperture.
The object of the present invention is to provide a nailer wherein nails attracted by the magnet are arranged to orient an upright direction so that every nail can be ejected as desired into an object.
Another object of the present invention is to provide a nailer with a position member mounted to the tube so as to prevent a magnet in the tube from dropping from the aperture in the tube by vibration.
These and further objects, features and advantages of the present invention to will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an illustrative view to show a conventional nailer and a nail attracted by the magnet is inclined relative to the longitudinal axis of the tube;
FIG. 2
is an exploded view to show a nailer of the present invention wherein a magnet is to be engaged with an aperture in the tube and a position member is to be mounted to the tube;
FIG. 3
is a perspective view to show the nailer of the present invention;
FIG. 4
is a side elevational view, partly in section, of the nailer of the present invention;
FIG. 5
is an exploded view to show the nailer of the present invention wherein a ring is to be engaged between the magnet and a periphery defining the aperture in the tube, and
FIG. 6
is a side elevational view, partly in section, of the nailer of the present invention, wherein a nail attracted by the magnet is oriented an upright direction in the tube.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to
FIGS. 2
to
4
, the nailer in accordance with the present invention comprises a head
20
having a connection tube
200
to be connected to a hose from a pneumatic source. A neck
22
is connected to a bottom of the head
20
and a tube
21
extends from the neck
22
. A protrusion
28
extends from an inside of the tube
21
and an aperture
23
is defined through the protrusion
28
and the tube
21
. A magnet
24
is engaged with the aperture
23
. A position member
25
is mounted to an outside of the tube
21
and seals the aperture
21
so that the magnet
24
will not drop from the aperture
23
. As shown in
FIG. 6
, a nail
27
in the tube
21
is attracted by the magnet
24
will be oriented to an upright direction as shown because a mediate portion of the nail
27
is pushed toward a central axis of the tube
21
. The thickness of the protrusion
28
is about a distance of a head of the nail
27
extending from a top of the nail
27
. Therefore, when the nail
27
is ejected into an object
29
, the nail
27
perpendicularly penetrates into a top of the object
29
.
Referring to
FIG. 5
, a ring
26
can be engaged with the aperture
23
and is located between the magnet
24
and a periphery defining the aperture
23
. The ring
26
is made of a material that will keep the magnetic force from lost.
While we have shown and described various embodiments in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope and spirit of the present invention.
Claims
- 1. A nailer comprising:a head having a neck connected to a bottom of said head, a tube extending from said neck and a protrusion extending from an inside of said tube, an aperture defined through said protrusion and said tube, a magnet engaged with said aperture, and a position member mounted to an outside of said tube and sealing said aperture.
- 2. The nailer as claimed in claim 1 further comprising a ring engaged with said aperture and located between said magnet and a periphery defining said aperture.
- 3. A nailer comprising:a head having a neck connected to a bottom of said head, a tube extending from said neck and a protrusion extending from an inside of said tube, an aperture defined through said protrusion and said tube, a magnet engaged with said aperture and a ring engaged with said aperture and located between said magnet and a periphery defining said aperture, and a position member mounted to an outside of said tube and sealing said aperture.
US Referenced Citations (7)