CN85200891U

CN85200891U - Convenient saw bow

Info

Publication number: CN85200891U
Application number: CN 85200891
Authority: CN
Inventors: 徐为明
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-04-01
Filing date: 1985-04-01
Publication date: 1986-06-25

Abstract

The utility model provides a convenient saw bow which can store a plurality of spare saw blades and adjust the distance between the saw blade and the bow arm. The convenient saw bow is suitable for the conditions which is inconvenient to carry and replace the saw blades (such as, far away worksite and high-lift operation), and to cut the large workpiece. In the convenient saw bow, the bow arm is made in to a cavity structure, which can be inserted with a plurality of (in general 4-8) spare saw blades. The upper direction of the collet of both ends of the saw bow is provided with a slide block mantle cavity which can be inserted in to the slide block collet and can adjust the distance between the saw blade and the bow arm by twitching the position of the slide block collet in the inside of the slide block mantle cavity.

Description

Convenient saw bow

The utility model relates to a kind of saw bow, it is characterized in that storing the distance between many standby saw blades and adjusting saw blade and bow arm.

Saw bow is the basic hand tools of metal cutting, mainly forms common horizontal span of change only and sawing direction by parts such as bow arm, handgrip, chuck, saw blades.But this saw bow exists certain shortcoming: first saw blade and bow spacing arm are from fixing, and the sawing degree of depth is restricted; It two is that saw blade very easily weares and teares and fractures, and changes and meets trouble often.When going out operation, carry the saw blade inconvenience, or leave behind as need.In the time of and for example need piercing machine or go up work high above the ground, the replacing saw blade will creep into and get out or the high and low, more trouble.

Outside above-mentioned deficiency, the utility model its objective is provides a kind of saw bow that makes things convenient for, and it can either store many standby saw blades, can regulate the distance between saw blade and bow arm when the thick workpiece of sawing again.

Its structure of the utility model is to be: will bend arm portion and make flat side's shape cavity structure, can insert many standby saw blades to cavity by the saw blade turnover groove of saw handle rear end, and can to the chamber, compress saw blade by saw handle sidepiece screw-in branch head screw, in order to avoid rock and skid off.In addition, above the chuck of saw bow two ends, be provided with the slide block mantle cavity, can insert the slide block chuck, and can by the position of twitching the slide block chuck regulate saw blade and bow spacing arm from, the holding screw by the mantle cavity sidepiece fixes the slide block chuck again.

Be different from existing saw bow, the utlity model has store many standby saw blades and regulate saw blade and bow spacing arm from function, that is: both changed saw blade on the spot in the condition (as: work high above the ground) of inconvenience in action, can when the thick workpiece of sawing, strengthen the distance between saw blade and bow arm again, extremely easy to use.This makes things convenient for saw bow to remove structurally some change, and its weight, part, cost almost increase seldom.

Below in conjunction with accompanying drawing content of the present utility model and enforcement are further described:

With reference to Fig. 1: intercept one section steel pipe that size is suitable, with an end pull curve the band circular arc the right angle after, strike out the cavity bow arm (1) that cross section is flat side's shape, and be drilled with two locating holes (3) at the other end, to bend arm again and insert aluminium casting saw handle (6), and screw in holding screw (5) by the top and to locating hole, fix (referring to B-B section among Fig. 3).Be provided with saw blade turnover groove (7) simultaneously in the saw handle rear end, can insert many standby saw blades (2) thus to cavity, and to cavity, compress saw blade (referring to B-B section Fig. 3), in order to avoid rock and skid off from saw handle sidepiece screw-in branch head screw (4).In addition, above the chuck of saw bow two ends, be respectively equipped with slide block mantle cavity (8), the casting of one end is below saw handle, one end utilization bow arm cavity vertically downward, (block cast of slide block chuck is made to insert slide block chuck (10) respectively, also can weld, also be drilled with locating hole in slide block one side), and can regulate saw blade and bend spacing arm from (seeing imaginary part among Fig. 1) by the position of twitching the slide block chuck, screw in holding screw (9) by the mantle cavity sidepiece again and fix slide block chuck (referring to A-A section among Fig. 2).

Other relevant manufacturing process, but the existing saw bow manufacturing technology of reference.

Claims

1, a kind of saw bow of being made up of bow arm, saw handle, chuck, saw blade and screw is characterized in that:

A, described bow arm are to make flat side's shape cavity structure that can store standby saw blade,

The outside of b, this cavity bow saw handle that arm patches part is provided with a branch head screw that is used for compressing standby saw blade in the cavity.

2, according to the saw bow described in the claim 1, it is characterized in that being: all be associated with the slide block that is used for regulating distance between bow arm and saw blade on two chucks of this saw bow, a slide block chuck is to insert in the slide block mantle cavity of saw handle lower end making and settlement, another slide block chuck is to utilize the curved cavity that hangs down of bow arm front end to insert as the slide block mantle cavity, and is provided with the holding screw that is used for fixing the slide block chuck in two slide block mantle cavity outsides.