KR20080111327A - Guide device of a power saw - Google Patents

Abstract

A guide apparatus of a power saw is provided to improve convenience in manipulation by maintaining the perpendicularity of a work piece while moving a guide bar right and left. A guide apparatus of a power saw comprises first and second guide rails(30,31) which are arranged on a table(11) at right angle, a guide bar(20) whose ends are extended down and inserted in a rail groove(33) of the first and the second guide rail to be movable and in which a square(24) is protruded on the lateral side, first and second rotation pulleys(40,41), first and second shift pulleys(42,43) installed on one ends of the first and second guide rails opposite to each other, and a wire(50) which run on the pulleys and cross each other at a certain position, where specific points of the wire between the rotation and shift pulleys are fixed to both ends of the guide bar.

Description

Guide device of a power saw

Figure 1-perspective view showing the configuration of a guide device for a conventional chainsaw

2-schematic perspective view showing the configuration of a chainsaw guide device according to the present invention

3-a plan view showing a chainsaw guide device according to an embodiment of the present invention

4-front view showing a guide device for a chainsaw according to the present invention

5-rear view showing the chainsaw guide device according to the present invention.

Figure 6-left side view showing the guide device for the chainsaw according to the invention

7-right side view showing the guide device for the chainsaw according to the invention

8 is a perspective view showing a wire connection state according to another embodiment of the present invention

Figure 9 is an enlarged cross-sectional view of the main portion showing a position fixing structure of the guide bar of the present invention.

※ Explanation of code about main part of drawing ※

10; Chainsaw 11; table

12; Frame 13; Tightening Screw

20; Guide bar 21; Guide protrusion

22; Fixed block 23; Guide Roller

24; Right angle 25; Wire fixing hole

26; Thread groove 27; Set screw

28; Tightening groove 30,31: first and second guide rail

32; Rail groove 33; Home

40,41; First and second turning pulleys 42,43; First and Second Directional Pulleys

44,45; Upper and lower pulleys 46; Axis (of pulley)

50; Wire 51,52; First and second wire

60; Mother 61; Large dimension scale

62; Sonar 63; Small dimension division

70; Screw shaft 71; Tightening Handle

72; Tightening block 80; Dorre Housing

81; Bracket 82; Screw hole

83; Recessed groove 84; Home

85; Tension adjusting screw

The present invention relates to a guide device for stably supporting a processing material in cutting various processing materials by a chainsaw installed on a table, and in particular, to maintain the squareness of the processing material stably during cutting of the chainsaw. It relates to a guide device for a chainsaw so that accurate cutting processing can be made.

In general, the chainsaw device is provided so that the saw tool, which is supported by the frame and rotates by driving of the motor, protrudes from the upper surface of the table to cut the material from the upper surface of the table. The material is guided to the guide bar so that a straight cut can be made.

1 shows a general chainsaw device as an example of a conventional cutting machine, and as shown therein, the saw blade of the chainsaw 1 partially protrudes to the upper surface of the table 2 supported by the frame 3, On one side thereof, a guide 4 is provided on the upper surface of the table 2 as a guide device for processing materials, and the cutting material is brought into close contact with the side surface of the guide bar, and the article is pushed in the longitudinal direction of the guide bar.

At this time, the pull bar 5 is provided inside the guide bar 4 so that the guide bar 4 of the guide device can be fixed without being pushed, and the butterfly nut 6 at the tip of the pull bar 5. The guide bar is fixed by tightening the butterfly nut, and the guide device is configured to adjust the gap by releasing the butterfly nut 6 to move the guide bar laterally.

By the conventional guide device, various cutting materials can be moved in a state of being in close contact with the guide surface of the guide bar 4, so that cutting can be performed in a straight state.

However, since the guide bar of the conventional guide device is simply configured to move left and right in contact with the front and rear sides of the table and fix the position with a butterfly nut, the guide bar is perpendicular to the table surface. There was a problem of inaccuracy.

Moreover, when moving the long guide bar is formed by holding the one end of the guide bar to move to the left and right, the other end of the guide bar was not smoothly moved due to the frictional force resistance, which is repeated use As a result, there was a problem leading to a decrease in accuracy due to wear.

In addition, according to the cutting size of the processing material, a series of straightening operations are frequently performed to loosen the butterfly nut and move the guide bar to fix the position. In this case, fine adjustment is difficult to be made and often depends on the skill of the operator. There was a problem that the precision was lowered.

In addition, conventionally, the measurement unit for measuring the cutting length is displayed only a large dimensional scale, such as the basic centimeter unit or millimeter unit, so that small dimensions cannot be measured. There was a problem that the cumbersome work, such as the need to be treated by the post-processing.

The present invention has been made in order to solve the above-described conventional problems, the object of the present invention is to provide a chainsaw guide device that can be conveniently operated by the left and right movement of the guide bar smoothly in the chain saw cutting process. will be.

Another object of the present invention, while maintaining the right angle of the processing material while moving the guide bar to the left and right to move or not to move, so that the cutting size can be conveniently measured to ensure accurate and stable cutting process To provide a guide device for a chainsaw.

It is still another object of the present invention to provide a chainsaw guide device capable of precisely measuring and cutting a processed material with accurate and precise dimensions by precisely measuring a cutting size of the processed material with respect to a horizontal moving distance of the guide bar.

The present invention, in order to achieve the above object, in the chainsaw guide device for processing while supporting and moving the processing material to the guide bar installed to move horizontally to the table that is protruded to the upper surface partially driven by the motor saw A pair of first and second guide rails installed in parallel to face each other in front and rear of the table; It is formed long and disposed on a table so as to be perpendicular to the first and second guide rails, and both ends thereof extend downward, so that the ends thereof are fitted into the rail grooves of the first and second guide rails so as to be movable laterally. It is installed, and the guide bar protruding at right angles to the side; First and second pivot pulleys respectively provided at one end of each of the first and second guide rails; A pair of first and second diverting pulleys disposed to face each other end of the first and second guide rails; Both ends are pivoted in the first and second turning pulleys, the middle of which is connected through the first and second turning pulleys, and crosses up and down alternately in the first and second turning pulleys. It comprises a wire that is connected to; An arbitrary point between each turning pulley and the turning pulley of the wire is fixed to both ends of the guide bar, and is configured to move along the first and second guide rails when the guide bar is moved.

Another feature of the invention, the upper surface of the table is provided with a mother measurer formed with a large dimension scale, the right angle of the guide bar is further provided with a son measurer having a small dimension scale.

Here, the son measurer is made of a transparent material and a small dimension scale is displayed on the bottom thereof so that the small measure can be measured by seeing through the large dimension scale of the mother measurer while moving upward.

Still another feature of the present invention is that the first and second pivot pulleys are rotatably assembled into a bracket having a "c" shape, and the bracket has an inner space and is provided with a pulley screw fixed to the guide rail by a fastening screw. The shafts of the first and second turning pulleys are fitted into the long holes formed on both sides thereof, and the brackets are screwed to the tension adjusting screws inserted through the sides of the pulley housings to fix the tension adjusting screws. The bracket is moved by rotational adjustment to adjust the tension of the wire over the first and second pivot pulleys.

Another feature of the invention is that the wire is divided into a first wire and a second wire, the first wire has one end screwed to the front end of the guide bar, the middle of which is wound around the first turning pulley The other end is fixed to the rear end of the guide bar via the lower pulley of the first turning pulley and the upper pulley of the second turning pulley; One end of the second wire is screwed to the rear end of the guide bar, and a middle thereof is wound around the second turning pulley to pass through the lower pulley of the second turning pulley and the upper pulley of the first turning pulley. The other end may be configured to be fixed to the front end of the guide bar.

The present invention will be described in more detail with reference to the accompanying drawings as follows.

Figure 2 is a schematic perspective view showing the configuration of a chainsaw guide device according to the present invention, Figure 3 is a plan view showing a chainsaw guide device according to an embodiment of the present invention, Figures 4 to 7 are electric according to the present invention It is a front view, a back view, a left side view, and a right side view which showed the saw guide apparatus.

Referring to the drawings, a table 11 on which one end of the chainsaw 10 protrudes upward is supported by a frame 12, and a pair of firsts are provided on the front and rear surfaces of the table 11. The guide rail 30 and the second guide rail 31 are provided to face each other in parallel with the moving direction of the workpiece.

The first and second guide rails 30 and 31 are formed with a long uneven rail groove 32 at each outer end, and each inner end is fixed to the bottom of the table 11 so that the table ( 11) It is assembled to form a step with respect to the top surface.

The upper surface of the table 11 is provided with a guide bar 20 is assembled in the longitudinal direction so as to maintain a right angle to the first and second guide rails (30, 31).

The guide bar 20 has a rectangular cross-sectional structure, and both ends thereof extend downward.

In addition, the fixing blocks 22 protruding from the inner end of the guide protrusions 21 having a width corresponding to the width of the guide bar 20 are fastened inside the bent ends of the guide bar 20. The guide bar 20 is integrally assembled with the screw 13.

The guide protrusion 21 is fitted into the rail grooves 32 of the first and second guide rails 30 and 31 so that the guide bar 20 having a relatively long length is formed by the first and second guide rails ( 30), (31) is to be able to move left and right while maintaining the right angle.

Here, the guide protrusions 21 and the rail grooves 32 can be stably moved along the first and second guide rails 30 and 31 without moving or shifting left and right along the first and second guide rails 30 and 31. It is desirable to assemble as appropriate fitting tolerances as possible.

To this end, the guide groove 33 is formed long in one side of the rail groove 32 of the first and second guide rails 30 and 31.

And, both ends of the guide bar 20 is further provided with a guide roller 23 which is clouded along the guide groove (33).

Therefore, the guide protrusions 32 and the rail grooves 32 maintain appropriate tolerances by the guide rollers 32 moving in the rolling motion along the guide grooves 33, so that the guide bar 20 It is to be able to slidably move while maintaining the right angle always without twisting left and right along the first and second guide rails (30, 31).

As described above, the side of the guide bar 20 configured to maintain a stable right angle has a right angler 24 for supporting the side of the processing material W.

In addition, the right angle 24 is preferably made of a synthetic resin having a relatively low frictional force of the surface because the side of the various processing materials to be cut by the chainsaw 10 is in close contact.

Accordingly, the right angler 24 is configured to be separated from the guide bar 20 in order to make a right angle or sometimes to make a right angle when the side surface is damaged due to contact with the processing material in the long-term use process. It may be desirable to assemble with the fastening screw 13 to be attached and detached.

On the other hand, the guide bar 20 as described above is guided by the first and second guide rails 30, 31 is made to move left, right, the present invention is more balanced of the guide bar 20 For the left and right movement operation is further provided with a sliding configuration of the wire.

As a configuration for this, first, a pair of first turning pulleys 40 and second turning pulleys 41 are vertically provided at one end of the first and second guide rails, and in the drawing, the right end. .

In addition, the other ends of the first and second guide rails 30 and 31 and the left end of each of the left ends of the first guide rails 30 and 31 are arranged in the same line as the first and second turning pulleys 40 and 41. The first direction telephone pulley 42 and the second direction switching pulley 43 are provided at the position.

The first and second turning pulleys 42 and 43 are configured in such a manner that a pair of upper pulleys 44 and lower pulleys 45 are stacked horizontally on the same axis.

On the other hand, both ends of the wire 50 are connected such that the ends of the wire 50 are pivoted over the first and second turning pulleys 40 and 41, and the middle of the wire 50 is the first and second turning pulleys. As shown in the drawings, the wires 50 are connected to each of the pulleys in the form of closed curves as shown in the drawings.

Here, in the section of the first turning pulley 42 and the second turning pulley 43, the wire 50 is the upper, lower pulley of the first turning pulley 42 as shown in FIG. The upper and lower pulleys 44 and 45 of the 44 and 45 and the second diverting pulley 43 are connected to each other in an up and down cross shape.

And, the guide bar 20 is fixed to both ends of the parallel section of the wire 50, that is, any point between each turning pulley and the turning pulley.

Preferably, the fixing portion of the wire 50 is horizontally penetrated horizontally through the center of the guide projection portion 21 of the fixed block 22 assembled by the two ends of the guide bar 20, respectively, the wire fixing hole 25 formed And the guide bar 20 by fixing the wire 50 to the guide bar 20 as a set screw 27 fitted into the screw groove 26 formed so as to penetrate in the vertical direction with respect to the wire fixing hole 25. The wire 50 is configured to be pulled together when the 20 moves left and right.

Therefore, when the user grabs the guide bar 20 and moves left and right, the first and second turning pulleys 40 and 41 and the first and second directions with respect to the moving direction of the guide bar 20 are moved. The wire 50 guided by the conversion pulleys 42 and 43 and connected in the form of a closed curve of the "c" shape is also moved in an infinite track.

As a result, the wire 50 is pulled at both ends of the guide bar 20 by the force of the operator moving the guide bar 20, so that the guide bar 20 is not biased by the user, the right angle You can move without moving left, right, or twisted state while maintaining.

According to another feature of the present invention, the wire 50 is not made of a closed curve and is changed in such a manner as to be separated from each other so as to easily connect the wire 50 and the respective pulleys, while the same function as described above is achieved. It can also be configured to work.

That is, as shown in FIG. 8, the first wire 51 and the second wire 52 are formed to have the same length by separating the wire 50.

The first wire 51 is first inserted into the right side of the wire fixing hole 25 at one end of the guide bar front side, the fixing screw 27 is fastened to the screw groove 26 is fixed.

The middle of the first wire 51 is wound around the first turning pulley 40 and then the upper side of the lower pulley 45 and the second turning pulley 43 of the first turning pulley 42. The other end of the first wire 51 is fitted to the left side of the wire fixing hole 25 formed at the rear end of the guide bar 20 via the pulley 44 and the fixing screw 27 in the screw groove 26. ) Is fastened and fixed.

In addition, one end of the second wire 52 is inserted into the right side of the wire fixing hole 25 at the rear side of the guide bar 20, and the fixing screw 27 is fastened to the screw groove 26. do.

The middle of the second wire 52 is wound around the second turning pulley 41 and then the lower pulley 45 and the upper side of the first turning pulley 42 of the second turning pulley 43. Crossing the first wire 51 while passing through the pulley 44, the other end of the second wire 52 to the left of the wire fixing hole 25 formed in the front end of the guide bar 20 Is fitted, and the fixing screw 26 is fastened and fixed to the screw groove 25, the first and second wires 51, 52 in the same form as the wire 50 forming a closed curve as described above Is configured to be connected to the guide bar (20).

On the other hand, the upper surface of the table 11 of the chainsaw guide device according to the present invention is provided with a measuring means for measuring the cutting length of the workpiece (W).

On the upper surface of the table 11 is provided a mother measuring instrument 60 having a large dimensional scale 61 for measuring a large dimension such as cm or long on the moving path of the square 24. .

In addition, the square 24 of the guide bar 20 has a small dimension 63 for measuring dimensions in units of 1/100 as compared to the dimension 61 of the mother measurer 60. The son measuring instrument 62 is further provided.

Preferably, the mother measurer 60 may be formed on the upper surface of the first guide rail 30 as a position well visible from the upper surface of the table 11 as well as the operator's working position, and the forming position thereof may be changed as necessary. have.

Accordingly, the sonometer 62 is installed on the front end of the right angler 24 to be in contact with the mother measurer 60 while looking at the large dimension 61 and the small dimension 63 together. It is conveniently configured for precise length measurement.

Here, the sonometer 62 is made of a transparent material according to another feature of the present invention, a small dimension division portion 63 may be displayed on the bottom.

According to this configuration, the sonometer 62 is made of a transparent material even though the sonometer 62 overlaps and moves directly on the mother meter 60 while being protruded toward the right angle 24, so that the son meter 62 is below the son meter 62. Since the large dimension scale 61 of the mother measurer 60 can be seen and measured while looking at the small dimension 63, the operator can measure the exact length without visual error.

Guide bar 20 of the present invention is provided with a fixing device for fixing the position after moving the guide bar 20.

That is, the screw shaft 70 is rotatably penetrated to the center of the guide bar 20, and one end of the screw shaft 70 protrudes slightly outside the guide bar 20 to the screw shaft at the end. The cylindrical tightening knob 71 for rotating the 70 is fixed integrally.

At the other end of the screw shaft 70, a tightening block 72 in contact with the side of the second guide rail 31 is screw-assembled with the screw shaft 70, and the tightening block 72 is the guide bar. It fits into the fastening groove 28 formed by cutting from the end of 20, and is assembled so that it may move back and forth.

Therefore, when the operator grasps the tightening knob 71 and turns the screw shaft 70, the tightening block 72 is moved back and forth in the tightening groove 28 by the screw direction. The end portion is in contact with the outer surface of the second guide rail 21 is tightened so that the position of the guide bar 20 can be fixed without moving.

Meanwhile, the first and second turning pulleys 40 and 41 and the first and second turning pulleys 42 and 43 are the first and second guide rails 30 and 31. ) Is fixed to the screw is made to adjust the tension of the wire (50).

As a configuration for this purpose, each pulley is drawn into the inside of the bracket 81 having a "c" shape and its axis is rotatably fitted to both sidewalls of the bracket 81, and the bracket 81 is pulley again. It is mounted inside the housing 80.

The pulley housing 80 has a space formed therein, and screw holes 82 for fixing the first and second guide rails 30 and 31 with fastening screws 13 are formed at both ends thereof. have.

And, on both side walls of the pulley housing 80, an inlet groove 83 for fitting the shaft 46 of each pulley is formed, and the long hole groove 84 extends from the inlet groove 83 in a right angle. It consists of

Therefore, when the bracket 81 is mounted in the pulley housing 80, the pulley shaft 46 is inserted into the pulley housing 83, and the bracket 81 and the pulley housing 80 become one assembly.

In this state, the pulley in the assembled state may escape the inlet groove 83 together with the bracket 81, but once the wire 50 is connected, the pulling direction of the wire 50 is in the inlet groove 83. Since it is opposite to the opening direction, it does not deviate.

In addition, the tension adjusting screw 85 penetrates laterally to the side of the pulley housing 80, the end of which is screwed to the closed side wall of the bracket 81 is connected to the configuration.

According to this configuration, when the wire 50 is connected to each pulley in the form of a closed curve, when the tension adjusting screw 85 is rotated to adjust the proper tension, the bracket 81 which is screwed thereon is pulled out of the pulley housing 80. It moves horizontally along the slot groove 84.

Accordingly, the wire 50 hanging on each pulley is pulled as a whole, so that the tension of the wire 50 can be adjusted to an appropriate state.

According to the present invention configured as described above, the cutting operation of the processing material can be made accurately and simply.

First, the operator measures the cutting length of the workpiece (W) by moving the guide bar 20 before placing the workpiece (W) on the table (11).

The operator moves the guide bar 20 to the "0" point of the small dimension division portion 63 of the son measurer 62 protruding from the side of the right angler 24 and the large dimension division portion 61 of the mother measurer 60. Based on the “0” point of), it is positioned at an arbitrary dimensional scale against the length to be cut.

Here, the guide bar 24 according to the present invention includes a guide protrusion 21 and a guide roller fitted to the rail groove 32 and the guide groove 33 of the first and second guide rails 30 and 31. 23) The cloud is reliably moved.

And, even if the operator moves to the left and right by holding the arbitrary position of the guide bar 24, the left or right is twisted or flows due to the mutual pulling force of the wire 50 is connected to both ends of the guide bar 20 with appropriate tension Without sliding smoothly guide bar 20 is always moved to maintain a right angle.

Since the effect of maintaining the squareness of the guide bar 20 is that the saw blades of the square saw 24 and the chainsaw 10 attached thereto are parallel to each other, the processing material W is applied to the square saw 24. It is easy to cut while pushing toward the saw blade in close contact.

Next, the operator measures the length to be cut to a predetermined length, and then hold the guide bar 24 at that position and turn the tightening knob 71 with the other hand.

Since the tightening block 72 is in close contact with the side surface of the second guide rail 31 by the rotation of the tightening knob 71, the guide bar 20 is fixed to the position without moving.

Next, the operator can easily and stably cut the processing material by simply operating and pushing the electric saw while keeping the processing material (W) in close contact with the right angle of the guide bar 20.

The present invention as described and illustrated above is not intended to be limited to the above embodiments, but may be embodied in various forms without departing from the spirit of the present invention.

As described above, the present invention allows the user to stably maintain the squareness of the processing material while moving the guide bar without distortion when the guide bar is moved left and right. It provides an effect that can be achieved.

In addition, by precisely measuring the cutting size of the processing material with respect to the horizontal movement distance of the guide bar, it also provides the effect of measuring and cutting the processing material with accurate and precise dimensions.

Claims (5)

In the chainsaw guide device for processing while supporting and moving the processing material to the guide bar installed to move horizontally on the table protruded to the upper surface of the chainsaw driven by the motor, A pair of first and second guide rails (30) and (31) which are arranged to face each other in front and rear of the table (11); It is formed long and disposed on the table so as to be perpendicular to the first and second guide rails 30 and 31, and both ends thereof extend downward, so that the ends thereof are the first and second guide rails 30, The guide bar 20 is inserted into the rail groove 33 of the 31 so as to be movable to the side, the side of the guide bar 20 protruding the right angle 24; First and second pivot pulleys (40) and (41) respectively provided at one end of each of the first and second guide rails (30) and (31); A pair of first and second diverting pulleys (42) and (43) installed to face each other end of the first and second guide rails (30) and (31); Both ends are pivoted in the first and second turning pulleys 40 and 41, the middle of which is connected via the first and second turning pulleys 42 and 43, and the first and second turning pulleys 40 and 41. It includes a wire 50 is connected to cross alternately up and down each other in the second turning pulley 42, 43 section; An arbitrary point between each turning pulley and the turning pulley of the wire 50 is fixed to both ends of the guide bar 20, so that the first and second guide rails 30 are moved when the guide bar 20 is moved. , 31, the chainsaw guide device characterized in that it is moved along. According to claim 1, wherein the table (11) is provided with a mother measuring instrument (60) formed with a large dimension portion 61 on the upper surface, the right angle 24 of the guide bar 20 has a small dimension ( Sonar measuring device having a 62) guide device for a chainsaw, characterized in that is installed in parallel with the mother measuring device (60). According to claim 2, wherein the son measurer 63 is made of a transparent material and the small dimension scale portion 62 is displayed on the bottom thereof, while moving to the upper side of the mother scale 60, the large scale scale portion 61 Guide device for chainsaw, characterized in that made to be able to measure the small dimensions through perspective. The first and second pivot pulleys (40) and (41) are rotatably assembled into a bracket (81) formed of a "c" shape so as to surround an outer surface thereof. Has an inner space and is mounted in the pulley housing 80 which is fixedly installed to the first and second guide rails 30 and 31 with the fastening screw 13 to the long groove 84 formed on both sides thereof. The shaft 46 of the first and second pivoting pulleys 40 and 41 are fitted, respectively, and the tension adjusting screw 85 inserted through the side of the pulley housing 80 is fitted with the bracket 81. The bracket 81 is moved by adjusting the rotation of the tension adjusting screw 85 to adjust the tension of the wire 50 over the first and second pivot pulleys 40 and 41. Guide device for chainsaw, characterized in that made. According to claim 1, wherein the wire 50 is divided into a first wire 51 and a second wire 52, One end of the first wire 51 is fixed to the front end of the guide bar 20 by a fixing screw 27, and a middle thereof is wound around the first turning pulley 40 so that the first turning pulley The other end is fixed to the rear end of the guide bar 20 via the lower pulley 45 of 42 and the upper pulley 44 of the second turning pulley 43; One end of the second wire 52 is fixed to the rear end of the guide bar 20 by a fixing screw 27, and a middle thereof is wound around the second turning pulley 41 so that the second turning pulley ( 43, the other end portion is fixed to the front end of the guide bar 20 via the lower pulley 45 and the upper pulley 44 of the first turning pulley 42. .

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