CN2539609Y

CN2539609Y - Hand saw

Info

Publication number: CN2539609Y
Application number: CN 02230655
Authority: CN
Inventors: 朱财富
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-06
Filing date: 2002-04-06
Publication date: 2003-03-12
Anticipated expiration: 2012-04-06

Abstract

The utility model relates to a hand saw, which is provided with a plurality of sawteeth, and a handle connected with a saw plate, wherein two side cutting edges of the sawteeth form an inclined shape, so that the sawteeth is sharp and has less resistance as well as increases the space of chip removal. The cutting edges of two adjacent sawteeth of the hand saw are arranged inversely, one side of each sawteeth reverse to the cutting edge forms valgus so as to save labor during sawing. Two side cutting edges of the sawteeth form the inclined shape, the cutting edge at the lower end of the sawteeth can form a small triangular inclined plane, thereby ensuring the sharpness of the tip of the sawteeth as well as reducing the resistance of the sawed object during sawing. During sawing, the wear of the cutting edges on three planes is synchronous so as to maintain the sharpness of the sawteeth.

Description

Handsaw

Technical field:

The utility model relates to the handsaw technical field.

Background technology:

At present, in the handsaw technical field, the quality of handsaw result of use depends primarily on whether the design of saw plate structure is reasonable, and promptly whether sawtooth is sharp, and whether the sawing resistance is little and be beneficial to chip removal.Fig. 1, Fig. 2 have provided a kind of common handsaw, and saw plate 1 is connected with handle 2, and each sawtooth 3 on the saw plate 1 roughly is a del, is staggered between each sawtooth, because the cutting edge of sawtooth is plane, sawtooth is not sharp, wastes time and energy in the sawing process.Directly increase labour intensity and reduced production efficiency.

Summary of the invention:

For solving above defective, it is sharp that the inventor has proposed a kind of sawtooth, the handsaw of the little and easy chip removal of resistance.It comprises: be located at the some sawtooth on the saw plate, with the handle that the saw plate links to each other, the both sides cutting edge of described sawtooth takes the form of inclined plane.Make that sawtooth is sharp, resistance is little, increased the chip removal space of sawtooth simultaneously, fast three times than common handsaw in sawing timber has improved production efficiency.

In the utility model, the cutting edge of two adjacent sawtooth of described handsaw oppositely is provided with, and each sawtooth slightly is valgoid to the reverse side of cutting edge.It has increased the chip removal space of sawtooth, has reduced the friction between saw plate top and quilt saw thing simultaneously, thereby has made sawing more laborsaving.

In the utility model, when the both sides of sawtooth cutting edge took the form of inclined plane, the lower end cutting edge of sawtooth can be the inclined-plane of little triangle; It has guaranteed the sharp of sawtooth crown portion, has reduced simultaneously in the sawing process by the resistance of saw thing.In the sawing process, the wearing and tearing of triple-edge are synchronous, keep the sharp of sawtooth.

In the utility model, the saw plate also can be up-narrow and down-wide shape.Reduce resistance, be beneficial to chip removal.

In the utility model, the sawtooth layer is preferably through the high-frequency quenching processing layer.Make that the rigidity of sawtooth tooth portion is good, not easy to wear.

The sawtooth of described saw plate also can be circular-arc arrangement.Make handsaw be more suitable for being used for the sawing branch.

Description of drawings:

Fig. 1 is existing handsaw schematic diagram.

Fig. 2 is the sawtooth portion enlarged drawing of existing handsaw.

Fig. 3 is the schematic diagram of the utility model handsaw embodiment 1.

Fig. 4 is a kind of sawtooth enlarged drawing of the utility model handsaw.

Fig. 5 is the another kind of sawtooth enlarged drawing of the utility model handsaw.

Fig. 6 is the generalized section of the utility model handsaw.

Fig. 7 is the schematic diagram of the another kind of embodiment of the utility model.

The specific embodiment:

As shown in Figure 3, handsaw of the present utility model comprises: be located at the some sawtooth 3 on the saw plate 1, with the handle 2 that the saw plate links to each other, the both sides cutting edge 4 of sawtooth 3 takes the form of inclined plane.Shape as Fig. 4.The cutting edge of sawtooth also can be a shape as shown in Figure 5.That is: take the form of inclined plane simultaneously at the both sides of sawtooth cutting edge 4, the lower end cutting edge 5 of sawtooth is the inclined-plane cutting edge that is little triangle.More than the sawtooth of two kinds of forms guaranteed the sharp of crown portion, reduced simultaneously in the sawing process by the resistance of saw thing.

As shown in Figure 6: the cutting edge of two adjacent sawtooth 3 of handsaw oppositely is provided with, and each sawtooth slightly is valgoid to the reverse side of cutting edge.It has increased the chip removal space of sawtooth, has reduced the friction between saw plate top and quilt saw thing simultaneously, thereby has made sawing more laborsaving.When handsaw hour, the saw plate also can be up-narrow and down-wide shape, is beneficial to reduce resistance.

As shown in Figure 7: the sawtooth 3 of saw plate 1 also can be circular-arc arrangement.Make handsaw be more suitable for being used for the sawing branch.

In the utility model, the sawtooth layer is preferably through the high-frequency quenching processing layer.Make that the rigidity of sawtooth tooth portion is good.

Claims

1, a kind of handsaw comprises: be located at the some sawtooth on the saw plate, with the handle that the saw plate links to each other, it is characterized in that: the both sides cutting edge of described sawtooth takes the form of inclined plane.

2, handsaw according to claim 1 is characterized in that: the cutting edge of two adjacent sawtooth of described handsaw oppositely is provided with, and each sawtooth slightly is valgoid to the reverse side of cutting edge.

3, handsaw according to claim 1 is characterized in that: the lower end cutting edge of described sawtooth is the inclined-plane cutting edge that is little triangle.

4, handsaw according to claim 1 is characterized in that: described saw plate is up-narrow and down-wide shape.

5, handsaw according to claim 1 is characterized in that: described sawtooth layer is through the high-frequency quenching processing layer.

6, handsaw according to claim 1 is characterized in that: the sawtooth of described saw plate is circular-arc arrangement.