US20020095970A1

US20020095970A1 - Cutting tool having wire bending structure

Info

Publication number: US20020095970A1
Application number: US09/765,711
Authority: US
Inventors: Li Yang
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-22
Filing date: 2001-01-22
Publication date: 2002-07-25

Abstract

A cutting tool includes two handles coupled to two cutter blades for forcing the cutter blades to cut the objects. Two or more poles are secured to the handles and extended outward beyond the handles for wire-bending purposes. One of the cutter blades includes a number of teeth and has a lever. A pawl is pivotally secured to one handle and biased to engage with the teeth. An actuator bar is pivotally secured to the other handle and has a post slidably received in the lever for selectively engaging with the lever to force the cutting edges to cut the object.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a cutting tool, and more particularly to a cutting tool having a bending structure for bending wires or the like.

2. Description of the Prior Art

U.S. Pat. No. 1,822,745 to Porter discloses a typical cutting tool having a pair of handles coupled to a pair of cutter blades respectively for forcing the cutter blades to engage with and to cut the wires or the like. The typical cutting tools may not be used for bending wires or the like.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional cutting tools.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a cutting tool including a pair of cutter blades for cutting wires or the like and including two or more poles for bending the wires or the like.

In accordance with one aspect of the invention, there is provided a cutting tool comprising a first cutter blade and a second cutter blade including a middle portion pivotally secured together with a link, and each including a first end having a cutting edge formed therein, and each including a second end, a first handle and a second handle secured to the first and the second cutter blades for selectively forcing the first and the second cutter blades to cut an object, and at least two poles secured to the first and the second handles and extended outward beyond the first and the second handles for wire-bending purposes.

The first handle includes a first end having an arm provided thereon, the arm includes a free end secured to the first cutter blade and includes a middle portion pivotally secured to the second handle with a pivot shaft.

The pivot shaft includes a first of the at least two poles secured thereon and extended outward beyond the arm of the first handle for wire-bending purposes.

The second end of the second cutter blade includes a plurality of teeth formed thereon, the first handle includes a pawl pivotally secured therein and means for biasing the pawl to engage with the teeth of the second cutter blade, a lever including a first end pivotally secured to the second cutter blade and including a second end having a slot formed therein, the second handle includes an actuator bar pivotally secured thereto and includes a post secured to the actuator bar and slidably received in the slot of the lever for selectively engaging with the lever to force the cutting edges toward each other to cut the object when the second handle is forced toward the first handle, and includes means for biasing the actuator bar to engage with the pawl when the actuator bar and the lever have forced the cutting edges to cut the object.

Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a cutting tool in accordance with the present invention; [0012]
FIG. 2 is an exploded view of the cutting tool; and [0013]
FIGS. 3, 4, [0014] 5 are plane schematic views illustrating the operation of the cutting tool.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to the drawings, and initially to FIGS. [0015] 1-3, a cutting tool in accordance with the present invention comprises a first handle 10 including a Z-shaped or N-shaped arm 11 provided on one end thereof and having a channel 12 formed therein. A second handle 20 includes one end engaged into the channel 12 of the arm 11 of the first handle 10 and pivotally secured to the first handle 10, such as secured to the middle portion of the arm 11 of the first handle 10 with a pivot shaft 23, for allowing the handles 10, 20 to be moved toward and away from each other. The shaft 23 includes a pole 40 secured thereto or extended therefrom and extended outward beyond the arm 11 for a suitable length and for bending wires or the like. One or more further poles 40 may further be secured to the second handle 20 with fasteners 17 or the like, and may further be secured to the arm 11 of the first handle 10 with fasteners 17 or the like, for wire-bending purposes.
A [0016] first cutter blade 31 has one end secured to the free end of the arm 11 with fasteners or the like, and another cutter blade 32 has a middle portion pivotally coupled to the middle portion of the first cutter blade 31 with a link 36 and fastener pins 70. The cutter blades 31, 32 each includes a cutting edge 37, 38 formed or provided in the first end thereof for cutting the objects, such as the wires or the like. The second cutter blade 32 includes a number of teeth 33 formed on the second end thereof. A pawl 13 is pivotally secured to the arm 11 of the first handle 10 with a pin 16. A spring 14 is engaged on the pin 16 and engaged with the pawl 13 for biasing the pawl 13 to selectively engage with the teeth 33 of the second cutter blade 32 (FIGS. 3-5) and to latch and to prevent the second end of the cutter blade 32 from moving backward toward the first cutter blade 31 or to prevent the cutting edges 37, 38 from being moved or separated from each other while cutting the wires or the like. A stop 18 is also secured in the arm 11 of the first handle 10 for engaging with the pawl 13 (FIGS. 3-5) and for limiting the relative rotational movement of pawl 13 relative to the arm 11.
One or two [0017] levers 34 have one end secured to the second cutter blade 32 with a pivot axle 39, and have a slot 35 formed in the other end portion thereof. An actuator bar 21 has one end pivotally secured to the second handle 20 with a pivot rod 22, and has the other end 27 for engaging with the pawl 13 (FIGS. 4, 5) and for selectively disengaging the pawl 13 from the teeth 33 of the second cutter blade 32. A guide post 28 is secured to the other end 27 of the actuator bar 21 and slidably engaged in the slots 35 of the levers 34. A spring 24 is engaged on the pivot rod 22 and engaged with the actuator bar 21 for biasing the actuator bar 21 to engage with the pawl 13 and for biasing the guide post 28 to slide along the slots 35 of the levers 34.
In operation, as shown in FIG. 3, when the [0018] second handle 20 is moved away from the first handle 10, the other end 27 of the actuator bar 21 may be disengaged from the pawl 13, and the guide post 28 may be slided to the other end of the slots 35 of the levers 34, distal to the pivot axle 39. As shown in FIGS. 4 and 5, when the second handle 20 is moved toward the first handle 10, the guide post 28 may be forced to be slided to engage with the levers 34 and to force the cutting edge 38 of the second cutter blade 32 to rotate and to engage with the cutting edge 37 of the first cutter blade 31. After the cutting edges 37, 38 have been forced toward each other to cut the wires, the actuator bar 21 is arranged to actuate the pawl 13 to engage with the teeth 33 and to prevent the cutting edges 37, 38 from being disengaged or separated from each other.
The [0019] cutting edges 37, 38 of the cutter blades 31, 32 may thus be caused to cut the wires or the like. The wires may also be bent by the poles 40, such that the cutting tool may be used for both cutting and winding or bending the wires, and is thus excellent for the house building workers who may conduct both the cutting and the winding or the bending of the wires with the cutting tool only without the other bending or cutting tools.
Accordingly, the cutting tool in accordance with the present invention includes a pair of cutter blades for cutting wires or the like and including two or more poles for bending the wires or the like. [0020]
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed. [0021]

Claims

I claim:

1. A cutting tool comprising:

a first cutter blade and a second cutter blade including a middle portion pivotally secured together with a link, and each including a first end having a cutting edge formed therein, and each including a second end,

a first handle and a second handle secured to said first and said second cutter blades for selectively forcing said first and said second cutter blades to cut an object, and

at least two poles secured to said first and said second handles and extended outward beyond said first and said second handles for wire-bending purposes.

2. The cutting tool according to claim 1, wherein said first handle includes a first end having an arm provided thereon, said arm includes a free end secured to said first cutter blade and includes a middle portion pivotally secured to said second handle with a pivot shaft.

3. The cutting tool according to claim 2, wherein said pivot shaft includes a first of said at least two poles secured thereon and extended outward beyond said arm of said first handle for wire-bending purposes.

4. The cutting tool according to claim 2, wherein said second end of said second cutter blade includes a plurality of teeth formed thereon, said first handle includes a pawl pivotally secured therein and means for biasing said pawl to engage with said teeth of said second cutter blade, a lever including a first end pivotally secured to said second cutter blade and including a second end having a slot formed therein, said second handle includes an actuator bar pivotally secured thereto and includes a post secured to said actuator bar and slidably received in said slot of said lever for selectively engaging with said lever to force said cutting edges toward each other to cut the object when said second handle is forced toward said first handle, and includes means for biasing said actuator bar to engage with said pawl when said actuator bar and said lever have forced said cutting edges to cut the object.