CN1695858A

CN1695858A - Light passable handsaw with instant renewable saw blade

Info

Publication number: CN1695858A
Application number: CN 200510049831
Authority: CN
Inventors: 邬贤波
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-26
Filing date: 2005-05-26
Publication date: 2005-11-16

Abstract

A light-conducting hand saw able to exchange its saw blade immediately is composed of a frame body consisting of front handle, bean and back handle with a curled part for installing saw blade via pin, a saw blade, a LED in the through hole on said beam, a button battery in the battery bay on the back handle, and a switch of LED.

Description

But the leaded light handsaw of instantaneously changing saw blade

Technical field

The present invention relates to handsaw, but particularly a kind of leaded light sawing material, but and the leaded light handsaw of instantaneously changing saw blade that can safe and efficient whenever and wherever possible replacing saw blade.

Background technology

The sawing material of this hand tools widespread usage commonly used of handsaw in repair of machine, assembling.Traditional handsaw generally is made up of parts such as saw blade, saw beam and handles, its structure has multiple, but really exist not enough, one handsaw wherein an end one screw and nut are arranged, play tension and unclamp the saw blade effect, when promptly not sharp or fracture needs replacing when saw blade, need unscrew nut, saw blade is got from handsaw, load onto new saw blade then, again with nut screwing clamping; Thereby when changing saw blade, a pine one is tight, and promptly trouble is time-consuming again, and uses the nut profile less, and frequent operation easily causes operator's fatigue; It two is in the dark weak local operation of light, sawing position location difficulty.

The applying date is the saw frame that " a kind of saw frame " (notification number is CN2508920 Y) of the Chinese utility model patent ZL01271894.7 in December 05 calendar year 2001 just belongs to this class formation; This handsaw still fails to solve the above problems, and can't finish leaded light location and safe and efficient replacing saw blade function whenever and wherever possible.

Summary of the invention

Technical problem to be solved by this invention is at above-mentioned defective, but and provide can convenient and swift replacing saw blade, the accurate leaded light handsaw of the instantaneously changing saw blade of leaded light location.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

But the leaded light handsaw of instantaneously changing saw blade comprises the support body through casting forming, and support body has foregrip, sets a roof beam in place and the back handle; Back handle has support arm and is connected with palintrope spare, palintrope spare is shaped on the blind rivet of assembling saw blade, the technical measures of taking comprise: set a roof beam in place to being shaped on the body of through hole, this through hole of setting a roof beam in place is embedded with the LED lamp, but setting-in is provided with the battery case of button cell in the notch that back handle top end face is shaped on, and is provided with the push button switch that can control the button cell break-make in the side opening that back handle reverse side upper end is shaped on; LED lamp, push button switch are electrically connected with button cell through lead and form a closed-loop path;

Back handle internal chamber wall is shaped on symmetrical handle groove; This handle groove supporting is shaped on the movable rolling cover of symmetrical rolling cover protruded stigma, and rolling cover is a monolithic molding member, and rolling cover protruded stigma matching seat drops in the handle groove of symmetry, and making rolling cover is that last fulcrum can be done the radian rotation with the handle groove; It is hinged with the small end portion that is positioned at the back handle that rolling cover is shaped on a rolling cover hole; The outer shrinkage pool of the palintrope spare that spring is housed is passed in the connecting rod bottom, and the nut that is pressed on spring with shoulder line mutually connects.

For optimizing technique scheme, the measure of being taked also comprises:

For preventing that dust or chip from falling into the back handle notch of setting-in battery case, and increase aesthetic, above-mentioned rolling cover has the extension end cap of covering back handle top end face notch.

For ease of holding, make things convenient for the user to operate, above-mentioned body periphery, foregrip handle portion and back handle handle portion are injected with plastics or the rubber layer of being convenient to hold.

Compared with prior art, the present invention is embedded with the LED lamp by being located at the support body through hole of setting a roof beam in place, but setting-in is provided with the battery case of button cell in the notch of back handle top end face, is provided with the push button switch that can control the button cell break-make in the side opening on the back handle reverse side; LED lamp, push button switch are electrically connected with button cell through lead and form a closed-loop path, make bulb luminous or extinguish, and realize accurate orientation cutting position; Back handle internal chamber wall is shaped on symmetrical handle groove; This handle groove supporting is shaped on the movable rolling cover of symmetrical rolling cover protruded stigma, and rolling cover is a monolithic molding member, and rolling cover protruded stigma matching seat drops in the handle groove of symmetry, and making rolling cover is that last fulcrum can be done the radian rotation with the handle groove; It is hinged with the small end portion that is positioned at the back handle that rolling cover is shaped on a rolling cover hole; The outer shrinkage pool of the palintrope spare that spring is housed is passed in the connecting rod bottom, and the nut that is pressed on spring with shoulder line mutually connects; As long as regulate nut in advance, behind the saw blade of packing into, only need rolling cover is pressed toward next during use, can make the saw blade tension in running order.Compression by spring and stretch and control the precise displacement of palintrope spare makes the saw blade of replacing still have faint strength to block blind rivet, changes saw blade and does not come off.The present invention has loading and unloading saw blade safe ready, the advantage of sawing accurate positioning.

Description of drawings

Fig. 1 is the local cross-sectional structural representation of the present invention;

Fig. 2 is each parts assembling schematic diagram among Fig. 1.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Structure of the present invention is seen shown in the accompanying drawing 1,2.But the leaded light handsaw of instantaneously changing saw blade comprises the support body 1 through casting forming, and support body 1 has foregrip 1a, 1b and back handle 1c set a roof beam in place; Back handle 1c has support arm and is connected with palintrope spare 8, and palintrope spare 8 is shaped on the blind rivet 8a of assembling saw blade 11,

The 1b that sets a roof beam in place is the body that is shaped on through hole, this 1b through hole of setting a roof beam in place is embedded with LED lamp 2, but setting-in is provided with the battery case 4 of button cell in the notch that back handle 1c top end face is shaped on, and is provided with the push button switch 5 that can control the button cell break-make in the side opening that back handle 1c reverse side upper end is shaped on; LED lamp 2, push button switch 4 are electrically connected with button cell through lead 3 and form a closed-loop path, make LED lamp 2 luminous or extinguish, press push button switch 4 simultaneously at the sawing article, the 2 instant luminous direct projections of LED lamp are implemented in the purpose of accurate orientation cutting position in the secretly weak local operation of light to sawing place;

Back handle 1c internal chamber wall is shaped on symmetrical handle groove 1d; This handle groove 1d supporting is shaped on the movable rolling cover 6 of symmetrical rolling cover protruded stigma 6a, rolling cover 6 is a monolithic molding member, for preventing that dust or chip from falling into the back handle notch of setting-in battery case 4, and increase aesthetic, rolling cover 6 has the extension end cap 6c that covers back handle 1c top end face notch.Rolling cover protruded stigma 6a matching seat drops in the handle groove 1d of symmetry, and making rolling cover 6 is that last fulcrum can be done the radian rotation with handle groove 1d; It is hinged with connecting rod 7 upper ends that are positioned at back handle 1c that rolling cover 6 is shaped on a rolling cover hole 6b; The palintrope spare 8 outer shrinkage pool 8a that spring 9 is housed are passed in connecting rod 7 bottoms, the nut 10 that is pressed on spring 9 with shoulder line mutually connects, during use as long as regulate nut 10 in advance, behind the saw blade 11 of packing into, only need rolling cover 6 is pressed toward next, can make saw blade 11 tensions in running order.Compression by spring 9 and stretch and control the precise displacement of palintrope spare 8 makes the saw blade 11 of replacing still have faint strength to block blind rivet 8a, changes saw blade 11 and does not come off.The present invention has loading and unloading saw blade safe ready, the advantage of sawing accurate positioning.

For ease of holding, make things convenient for the user to operate, body periphery, foregrip 1a handle portion and back handle 1c handle portion are injected with plastics or the rubber layer of being convenient to hold 12.

When changing saw blade 11, as long as it is loosening and raise rolling cover 6, rolling cover 6 can handle groove 1d be that last fulcrum can be done the radian rotation promptly, and driving and being hinged on these 6b inside connecting rod 7 upper ends, rolling cover hole is that last fulcrum is done the radian rotation with handle groove 1d also, thereby gives 7 one downward thrusts of connecting rod; And be positioned at the spring 9 at palintrope spare 8 outer shrinkage pool places, withstand and give 10 1 downward thrusts of nut, therefore drive the connecting rod 7 that line is connected on the nut 10 and move down, thereby also give 7 one downward pulling force of connecting rod; The connecting rod 7 that moves down drives the palintrope spare of pin joint on support arm 8 and does the certain angle rotation, to reach degree of tightness and to change saw blade 11 functions, connecting rod 7 moves down compression and the stretching that distance is controlled by spring 9 in design, thereby the precise displacement of control link 7 is controlled the displacement of palintrope spare 8, realize changing the saw blade saw blade and still have faint strength to block blind rivet 8a, simultaneously also can more convenient replacing saw blade.

Though the present invention illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

But 1, the leaded light handsaw of instantaneously changing saw blade comprises the support body (1) through casting forming, and support body (1) has foregrip (1a), sets a roof beam in place (1b) and back handle (1c); Back handle (1c) has support arm and is connected with palintrope spare (8), and palintrope spare (8) is shaped on the blind rivet (8a) of assembling saw blade (11), it is characterized in that:

Described setting a roof beam in place (1b) is for being shaped on the body of through hole, this (1b) through hole of setting a roof beam in place is embedded with LED lamp (2), described back handle (1c) but in the notch that top end face is shaped on setting-in be provided with the battery case (4) of button cell, be provided with the push button switch (5) that can control the button cell break-make in the side opening that handle (1c) reverse side upper end, described back is shaped on; Described LED lamp (2), push button switch (4) are electrically connected with button cell through lead (3) and form a closed-loop path;

Described back handle (1c) internal chamber wall is shaped on symmetrical handle groove (1d); This handle groove (1d) supporting is shaped on the movable rolling cover (6) of symmetrical rolling cover protruded stigma (6a), rolling cover (6) is a monolithic molding member, rolling cover protruded stigma (6a) matching seat drops in the handle groove (1d) of symmetry, makes rolling cover (6) can do the radian rotation with handle groove (1d) for last fulcrum; It is hinged with connecting rod (7) upper end that is positioned at back handle (1c) that rolling cover (6) is shaped on a rolling cover hole (6b); The outer shrinkage pool of palintrope spare (8) (8a) that spring (9) are housed is passed in connecting rod (7) bottom, and the nut (10) that is pressed on spring (9) with shoulder line mutually connects.
But 2, the leaded light handsaw of instantaneously changing saw blade according to claim 1 is characterized in that: described rolling cover (6) has the extension end cap (6c) of covering described back handle (1c) top end face notch.
But 3, the leaded light handsaw of instantaneously changing saw blade according to claim 1 is characterized in that: described body periphery, foregrip (1a) handle portion and back handle (1c) handle portion are injected with plastics or the rubber layer of being convenient to hold (12).