Device for positioning nails in a tube of a nailer

Information

  • Patent Grant
  • 6308879
  • Patent Number
    6,308,879
  • Date Filed
    Friday, April 14, 2000
    24 years ago
  • Date Issued
    Tuesday, October 30, 2001
    23 years ago
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)
Number Name Date Kind
2829369 Browning Apr 1958
3820705 Beals Jun 1974
3979040 Denin Sep 1976
4611739 Rowton Sep 1986
5074453 Tachihara et al. Dec 1991
5647525 Ishizawa Jul 1997
6145723 Gupta Nov 2000