Patent Application
20070101592
This application claims the benefit under 35 U.S.C. §119 of Chinese Patent Application having Ser. No. 200510030681.7, filed on Oct. 20, 2005, which is incorporated by reference herein.
1. Field of the Invention
Embodiments of the present invention generally relate to a handsaw assembly. More particularly, embodiments of the present invention relate to a handsaw assembly that can pivot.
2. Description of the Related Art
A conventional handsaw has a saw blade and handle. The saw blade has at least one tongue. One side of the handle is slotted. The tongue and the slot correspond to fix the sawblade to the handle. An example of such a handsaw is disclosed in German Patent No. 2931426 (1982). Such construction provides an instable handsaw, and also creates difficulty when cutting to a fixed cutting depth. Such construction also makes replacing the saw blade difficult.
There is a need, therefore, for a handsaw assembly that is more stable, easily replaceable, and can more easily cut at greater depths.
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
A detailed description will now be provided. Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims. Each of the inventions will now be described in greater detail below, including specific embodiments, versions and examples, but the inventions are not limited to these embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the inventions, when the information in this patent is combined with available information and technology.
A pivotable handsaw assembly that can be easily used and allows the angle of the saw blade to be changed easily is provided.
The pivotable member 3, user handle 2, grip member 4, and saw blade 1 each include a bore or opening 11, 14 formed therethrough. As such, those components can be connected by one or more fastener members including one or more screws, bolts and nuts. For example, a bolt 6 can be used to fasten the pivotable member 3, user handle 2, grip member 4, and saw blade 1 together. A nut 10 can be used to cap the bolt 6 and hold the components in place.
In one or more embodiments, the saw blade 1 can be pivoted relative to the user handle 2. The saw blade 1 and the user handle 2 can pivot about the bolt 6 and the eccentric wheel 5. The pivotable member 3 can include two or more projections 15 formed thereon The projections 15 on the pivotable member 3 can limit the range or distance the user handle 2 can move about the wheel 5.
In operation, the pivotable member 3 can rotate through a certain arc so that the eccentric wheel 5 can rotate through a certain angle to move the saw blade 1 away from the slot 13 on the user handle 2 to rotate. Accordingly, the pivotable handsaw assembly is easy to use and the angle of the saw blade 1 can be easily changed.
In operation, an operator can turn the nut 10 on grip member 4 to loosen bolt 6 and then pivot grip member 4 from a “locked” position to a “unlocked” position. As a result, the eccentric wheel 5 can move through a certain angle. Hole 11 in saw blade 1 can be fixed to eccentric wheel 5. In this way, end part 12 on saw blade 1 can move away from the slot 13 on the user handle 2. After the saw blade 1 can be pivoted to an appropriate position, grip member 4 can be pivoted from the “unlocked” position to the “locked” position.
In one or more embodiments, the saw blade 1 can be fixed to the handle 2. The handsaw can then be used after the nut 10 on the grip member 4 is fastened.
In another embodiment, the invention relates to:
a saw blade;
a handle;
a pivotable member; and
a grip member,
wherein the pivotable member is arranged outside the handle, and the grip member is arranged outside the saw blade.
Certain embodiments and features have been described using a set of numerical upper limits and a set of numerical lower limits. It should be appreciated that ranges from any lower limit to any upper limit are contemplated unless otherwise indicated. Certain lower limits, upper limits and ranges appear in one or more claims below. All numerical values are “about” or “approximately” the indicated value, and take into account experimental error and variations that would be expected by a person having ordinary skill in the art.
Various terms have been defined above. To the extent a term used in a claim is not defined above, it should be given the broadest definition persons in the pertinent art have given that term as reflected in at least one printed publication or issued patent. Furthermore, all patents, test procedures, and other documents cited in this application are fully incorporated by reference to the extent such disclosure is not inconsistent with this application and for all jurisdictions in which such incorporation is permitted.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200510030681.7 | Oct 2005 | CN | national |
