CN2500444Y - M type tooth saw - Google Patents

Abstract

The utility model relates to a junior hacksaw, which could be used in fruit tree pruning and wooden ware manufacturing. The saw blade part comprises a plurality of M-shaped blade teeth on the upper edge of the saw in continuous parallel arrangement. The tooth edge of each blade tooth is provided with ground single bevel blade. The single bevel blades of each two adjacent blade teeth are positioned oppositely with each other. The utility model has the advantages of novel structure, low cost, less cutting resistance, fast speed, even and smooth section and convenient polishing.

Description

The full plane iron rack saw of M type

Technical field

The utility model belongs to the cutting appliance technical field of timber or similar material, relates to a kind of hand saws that can be used for pruning fruit tree, forest zone felling and woodenware making etc.

Background technology

Present known pruning fruit tree is felled cross cut saw and timber processing with saw, forest zone can be divided into cutter tooth and conventional tooth with the sawtooth style cardinal principle of saw etc., they are in problem such as all have effort in varying degrees, cutting speed is slow and the cut section is coarse in actual the use, and it is very difficult particularly will to fix section with it concerning the orchard worker on no carpenter basis; Though and more in recent years by the rack saw material of external import and perfect in workmanship, result of use is preferable, because of it does not have the reconditioning ability substantially, influences the pot life, furthermore costing an arm and a leg of import saw, thereby still be difficult to by large scale application.

Summary of the invention

The purpose of this utility model is to provide at the defective of known technology product a kind of novel and reasonable structure, cost is low, the cutting resistance is little, speed is fast and the full plane iron rack saw of the smooth bright and clean M type of section.

The technical solution that adopts is so for achieving the above object: the full plane iron rack saw of the M type that is provided comprises saw body and sawtooth, serrated portion wherein by continuously and shape be arranged in and saw on one's body that a plurality of M type sword teeth of edge constitute, tooth at each sword tooth has monocline face sword along locating equal grinding, and the one-sided basil on the per two adjacent sword teeth is inverted mutually.

The utility model is owing to adopt the particular structure that sawtooth is designed to the full plane iron tooth of M type, and all with basil contact timber, each basil and crown are very sharp, can play the effect of scraping to timber, make the timber section bright and clean at cut timber time unit tooth for it; The basil that other goes up per two teeth owing to this saw is inverted mutually, when cutting timber, can not recognize anyway, sawtooth can cut off fiber at orthogonal both direction simultaneously to cutting timber in the saw body push-and-pull process, and the wooden slag that will produce is hidden at any time between two backlash and takes out of at any time, so the cutting resistance of this rack saw is minimum, operating rate is fast, and can keep walking saw steadily not run partially.In addition, the utility model has also that mill is repaiied conveniently, advantage such as not fragile, its product uses and adjusts many times and plan as a whole preferred through long-term experiment, all kinds of technical parameters have reached patent law of china defined " three property " requirement, but numerous areas such as product extensive use and fruit tree training, gardening correction, forest zone felling and timber processing.

Description of drawings

Fig. 1 is the structural representation of a specific embodiment of the utility model.

Fig. 2 is the structural representation of a pair of adjacent shaping sawtooth among Fig. 1.

Fig. 3 is the side-looking structure chart of Fig. 2.

The specific embodiment

Referring to accompanying drawing, this full plane iron rack saw is made of the sawtooth 2 that saw body 1 and row are located at saw body 1 upper limb, sawtooth is designed to the M type, can arrange (see figure 1) arbitrarily continuously according to the geometries characteristic of saw shape during enforcement, tooth at each sword tooth has monocline face sword along locating equal grinding, one-sided basil on the per two adjacent sword teeth is inverted mutually and to the outside the curved (see figure 3) of dialling is arranged slightly, and its purpose is to obtain than the big slightly swage set of saw body thickness, so that the unlikely timber by institute's sawing of saw body is clamped.In the actual product structure, the tooth depth of sawtooth 2 is 5～15mm, and tooth is 30～45 along sharpening angle β, and 2 liang of crowns of M type sawtooth are 60～65 ° of angles apart from the angle α between tooth paddy, 2 1～5mm (see figure 2)s of being separated by of per two sawtooth; The making material of saw body should adopt carbon tool steel, and the senior high-quality steel that with the grade of steel is carbon 7 (T7A) and carbon 8 (T8A) is for first-selected, and Rockwell hardness is 55～57 °, and material thickness is 1.0～1.5mm.

Claims (2)

1, the full plane iron rack saw of a kind of M type, comprise saw body (1) and sawtooth (2), it is characterized in that said sawtooth (2) is made of a plurality of M type sword teeth that continuous and shape are arranged in saw body (1) upper limb, tooth at each sword tooth has monocline face sword along locating equal grinding, and the one-sided basil on the per two adjacent sword teeth is inverted mutually.

2, the full plane iron rack saw of M type as claimed in claim 1, the tooth depth that it is characterized in that said sawtooth (2) is 5～15mm, tooth is 30～45 along sharpening angle β, and M type sawtooth (2) two crowns are 60～65 ° of angles apart from the angle α between tooth paddy, the 1～5mm of being separated by between per two sawtooth (2).

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