Patent Application
20090277939
1. Field of the Invention
The invention relates to a nail gun hanging device, more particularly to a nail gun hanging device including a coupling member and a hanger rotatable relative to the coupling member.
2. Description of the Related Art
Most nail guns are equipped with hanging devices connected to handles thereof so as to allow workmen to hang the nail guns around their waists. The hanging device has a part rotatable relative to the handle of the nail gun so as to permit disposition of the nail gun at a desired position or side (left or right side) of the waist of the workmen that facilitates access.
Referring to
When the nail gun 6 is to be positioned at a desired position relative to the waist of the workmen, the hanger 72 is operated to rotate relative to the coupling member 71 such that the positioning stud 731 is disengaged from the current one of the positioning grooves 712, and is subsequently moved to and engages a new selected one of the positioning grooves 712. However, there is a need to reduce the number of the components of the positioning unit 73 of the conventional nail gun hanging device 7 so as to reduce the assembly time and manufacturing costs.
Therefore, an object of the present invention is to provide a nail gun hanging device that can overcome the aforesaid drawback associated with the prior art.
Accordingly, a nail gun hanging device of the present invention is adapted to be connected to a handle of a nail gun, and comprises: a cylindrical coupling member defining a central axis and having a first axial end portion adapted to be secured to the handle of the nail gun, and a second axial end portion opposite to the first axial end portion along the central axis; a hanger having a sleeve portion and a hook portion protruding from the sleeve portion and adapted to be used to hook on an object, the sleeve portion being sleeved rotatably and co-axially on the second axial end portion of the coupling member; and a single piece of a resilient plate disposed between and abutting resiliently against the second axial end portion of the coupling member and the sleeve portion of the hanger, and having a deformable protrusion protruding therefrom to abut resiliently against one of the second axial end portion of the coupling member and the sleeve portion of the hanger. Said one of the second axial end portion of the coupling member and the sleeve portion of the hanger is formed with a plurality of retaining grooves. The deformable protrusion of the resilient plate extends into a selected one of the retaining grooves.
Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment with reference to the accompanying drawings, of which:
Referring to
In this embodiment, the deformable protrusion 411 of the resilient plate 41 has a round shape, and abuts resiliently against the sleeve portion 31 of the hanger 3. The resilient plate 41 further has two opposite end portions 412 extending in opposite directions from the deformable protrusion 411. The other of the second axial end portion 22 of the coupling member 2 and the sleeve portion 31 of the hanger 3 is formed with a retaining recess 42 such that the resilient plate 41 is retained in the retaining recess 42. In this embodiment, the retaining recess 42 is formed in and is indented inwardly from an inner surface 311 of the sleeve portion 31 of the hanger 3, and has a T-shape. The end portions 412 of the resilient plate 41 extend respectively into two end segments 422 of the retaining recess 42, and the deformable protrusion 411 of the resilient plate 41 protrudes outwardly from a middle segment 421 of the retaining recess 42, as best shown in
The coupling member 2 further has an abutting flange 21. The second axial end portion 22 of the coupling member 2 has a toothed segment 221 extending axially and reduced in cross-section from the abutting flange 21 and formed with the retaining grooves 42 that are equiangularly displaced. The sleeve portion 31 of the hanger 3 has an axial end 312 abutting against the abutting flange 21 of the coupling member 2. The first axial end portion 24 of the coupling member 2 has a threaded segment 241 extending axially from the second axial end portion 22 to engage threadedly the handle 61′.
The second axial end portion 22 of the coupling member 2 is further formed with an annular groove 25. The nail gun hanging device 1 further includes a ring pad 5 received in the annular groove 25 and in sealing contact with the handle 61′ and the second axial end portion 22 of the coupling member 2.
In operation, when the nail gun 6′ is to be positioned at a desired position, the sleeve portion 31 of the hanger 3 is rotated about the central axis relative to the coupling member 2 such that the protrusion 411 of the resilient plate 41 is deformed to disengage from a current one of the retaining grooves 43 and is subsequently moved to and engages a new selected one of the retaining grooves 43.
With the inclusion of the resilient plate 41 in the nail gun hanging device 1 of this invention, the aforesaid drawback associated with the prior art can be eliminated.
While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that this invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
