JPH06238511A - Cutting angle setting device of portable sawing machine - Google Patents

Abstract

PURPOSE:To provide a device having a function capable of optionally selecting and setting a cutting angle on a portable sawing machine to install an endless saw. CONSTITUTION:This device is constituted of a function to rotate and control a plate base 6 or a cutting angle setting plate 6x, a function to stop the plate base 6 or the cutting angle setting plate 6X at an optional rotational angle, an angle graduation 11b displaying the rotational angle and an indication pointer 11c or an indication mark 11d.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application)
A sawtooth portion is formed on the outer side in the radial direction in the layer, and on the inner side
A portable saw that wears a ring-shaped, endless saw with a saw blade
The present invention relates to a cutting angle setting (adjustment) device for a machine. (Problems to be Solved by the Invention) FIGS.
Wearing the endless saw of the saw, the use of the saw machine as one of the components
An example in which the usage is portable is shown. Hereafter
Book by explaining the outline of the configuration of the portable saw machine
Unveiling the Endless Saw Shape of the Invention and Required Functions
To do. The frame body is a gate that is connected to the head with the lower part open.
The shape of the mould, where other components are placed or installed.
Plays a role as a base. In this example, portable
As the head of the front and rear pedestals of the frame body
The part is formed into a thickness that is suitable for grasping by hand, and is used as a handle.
ing. Endless saws should be on the same plane or in the same layer.
Saw teeth are formed on the outside in the radial direction, and the saw blade is formed on the inside.
Therefore, the shape of the cross section of the saw blade is slightly modified according to the present invention.
Even if there is unevenness, if it is classified as a convex shape,
Limited to. The suspension pulley that suspends the endless saw is
On the same elevation or in the same vertical direction that crosses the body vertically.
Distributing a total of 4 on the upper and lower parts of the front and rear pedestals in the layer
It is placed. An electric motor is stored inside the rear pedestal.
Suspension mounted on the upper part of the rear pedestal connected to the electric motor.
The rotation of the pulley allows the endless saw to be suspended between suspension pulleys and suspended.
Circulates on the pulley. Tension that gives tension to an endless saw
The mechanism consists of a suspension pulley and a butterfly head located above the front pedestal.
It is composed of an attached screw shaft and feed nut. Cutting
The action is between the lower end of the front and rear pedestal, which is the cutting action line area.
The cutting action line is performed by running an exposed endless saw.
The plate surface was erected vertically above the endless saw exposed in the area.
In the posture, the plate thickness is the same as the saw tooth width of an endless saw, or
Thin guide plate with both ends joined to the lower part of the front and rear pedestals
(Guide bar) is installed. The lower end of this guide plate
Is the saw blade of an endless saw, or part of the sawtooth
The shape that fits with the bent part, that is, the saw blade of the endless saw
If the cross-sectional shape is concave, the cross-sectional shape is convex
A cross section of the saw blade, formed like the endless saw of the present invention.
If the shape is a convex shape, the cross-sectional shape is made concave.
However, due to the cutting resistance of an endless saw traveling in the cutting action area,
Escape to the upper side to prevent lateral and lateral swings. First
Figures 3 and 4 show a form of the endless saw and guide plate fitting of the present invention.
One example is shown. And of the endless saw exposed in the cutting action area
On the left side, a plate-shaped base with the plate surface facing up and down is placed
The guide vertical axis and sliding between the plate-shaped base and the frame body.
With a sleeve, two links, a torsion coil spring, etc.
The lower surface of the plate-shaped base, which is provided with a lifting guide mechanism
Is in contact with the top surface of the material to be cut and the machine is placed on the material to be cut.
And then manually press the handle of the frame body downward to cut.
As the work is started, the frame body and suspension pool
Top and bottom consisting of an electric motor, tensioning mechanism, endless saw, etc.
After lowering the moving part and after finishing the cutting work, the vertical moving part is restored again.
There is a climbing motion to return to the position. That
This portable saw machine cuts the machine body of the material to be cut during cutting work.
Perform the work while keeping it in a fixed position,
In (zone), the endless saw and guide plate are in the form of fitting,
Escape the endless saw to the top, stop the lateral swing,
Also, the thickness of the endless saw blade (width and width) can be reduced to make it easier.
Since it is possible to form small saw teeth,
Enables realization of dense dimension cutting and smooth cutting surface
It The portable saw machine is configured as above, but this is
It satisfies the basic elements as a breaker,
In order to support various work styles on the shop floor, there are several
Ancillary elements will be added. One of them is
The cutting line that appears on the side of the cutting material should be the top surface of the cutting material.
Angle, that is, the cutting angle is selected and set
It is a function that can. The present invention is as described above.
, Select and set the cutting angle to the portable saw machine
The purpose is to obtain the functions that can. (Means for solving the problem) To achieve the above-mentioned object
In addition, the present invention provides a cutting action line inside the body of a portable saw machine.
Rotate the tip of the sawteeth of the endless saw exposed in (zone)
Or the rotation centerline around it
Place it on the plate-shaped base or below the plate-shaped base.
Rotate the notch angle setting plate installed on the
Has the function of controlling those rotations and the rotating plate-shaped base.
Stop the angle setting plate at any rotation angle
It has a function to rotate a plate-shaped base or cutting angle setting plate.
Angle scale and indication for indicating (reading) the turning angle
Depth angle setting (adjustment) device with needle or instruction mark
Form a table. The plate shape of this cutting angle setting (adjustment) device
Rotate the base or cutting angle setting plate of
Or, the functional part that controls their rotation has a groove (narrow window)
Displacement of grooved link in the groove of link and grooved link
Stop, multi-joint link, plate with central angle.
Triangle corresponding to all rotation angles of the base or cutting angle setting plate
Shape, trapezoidal shape, fan shape, or
2 plate hinges of similar shape, connecting rod and connecting rod
Stoppers to stop displacement, rack and pinion, screw shaft and
The main component of the structure is a nut or female thread that is screwed onto the shaft.
It is composed of 6 parts. Of these, the plate-shaped base or cut
Link with groove for the functional part that rotates and controls the included angle setting plate
And the stopper, the grooved link should be straight.
It can be formed into two types of circular arc shape and grooved phosphorus
If the circle is circular, form a linear groove on the circumferential surface.
Method and method of forming a circular groove on the side surface with respect to the circumferential surface
There are two types of law, both of which have a plate-shaped base at the center of the circle.
Is it the same as the center line of rotation of the notch setting plate?
It should be close, and one end of it should not be a plate-shaped base.
Do not touch the side edge on the side opposite to the center of rotation of the cutting angle setting plate.
Often fixed and connected near the end of the chair. groove
If the attached link is to be straight, make one end of the link
Locked in the same position as when
And this grooved link and fastener configuration
To move the grooved link up or down or
Rotate the plate-shaped base or cutting angle setting plate by and
No direct or manual plate base
The rotation of the cutting angle setting plate can be moved up and down or rotated.
Controlled by the displacement of the
On the upper surface of the plate-shaped base or the base of the lifting guide mechanism
Plate-shaped with a stopper installed on the
The base or cutting angle setting plate of the
Only). Plate-shaped base or cutting angle setting
The rotation angle of the plate is indicated on the circumferential surface or side surface of the grooved link.
The linear and circular angle scales formed on the
Indicator needle formed on the base or the base of the lifting guide mechanism
Or indication mark, or plate-shaped base or notch
It can be indicated by the lower surface of the angle setting plate or the like. So
Then, this functional part is composed of a grooved link and a stopper.
The base of the plate or the cutting angle setting plate
It is necessary to form a rotation spindle on the center line of rotation and
If the pivot shaft is not formed, the centripetal mechanism described later should be formed.
Need to guide the center of rotation. Plate-shaped base or cut
The function part that rotates and controls the angle setting plate
Link, use one end of a multi-section link.
Use a pin to turn the plate-shaped base or cutting angle setting plate.
It is movably locked and the other end is a plate-shaped base or lifting guide.
A pin is rotatably locked to the base of the structure and the
A plate-shaped base or cutting angle setting plate can be
Rotate or control their rotation. this
In this case, a multi-section link is formed in a quadrangle as an example.
And install the angle adjustment rod on the diagonal of the quadrangle,
Adjust the diagonal length of the angle adjustment rod to transform the quadrangle.
Or install the screw shaft on the diagonal of the quadrangle
The screw is rotated by rotating the nut that is screwed onto the screw shaft or screw shaft.
Plate shape by adjusting the length on the diagonal of the axis to deform the quadrangle
Easily rotate and control the base or cutting angle setting plate
Both of them can obtain proper operation with a simple mechanism.
It In this case, the indication of the rotation (cutting) angle is
Bending and turning of links, forward / backward movement of angle adjusting rod, or plate shape
For the rotation of the base of the
A linear or circular angle scale formed continuously,
Indicator needle, indicator mark, or plate-shaped base or notch
It can be indicated by the lower surface of the angle setting plate.
Rotate and control the plate-shaped base or cutting angle setting plate
Two if the functional part is composed of a two-plate hinge
The shape of the plate hinge is a base or cut with a plate-shaped central angle
Total angle of rotation of the angle setting plate (structural control of the body of the portable saw machine
Horizontally slide the plate-shaped base or cutting angle setting plate
Based on a right angle, which allows for incision without causing
Then, a total angle of 40 ° to 140 ° rotated left and right
Triangular shape corresponding to the angle determined by the range of degrees, if
Cubic trapezoidal shape, fan-shaped shape, or the like
And one end of the hinge is a plate
Lock it with a pin on the base or cutting angle setting plate,
The other end is locked to the plate-shaped base or the base of the lifting guide mechanism
Then, by opening and closing the two-plate hinge, a plate-shaped base or
Rotate the cutting angle setting plate or
Direct rotation due to movement is controlled by opening and closing the two-plate hinge.
Control. An example of stopping the rotation (cutting) angle in this case is
As an extension of one of the two plate hinges on the plate-shaped base
Can be done by restraining the
The angle is indicated by opening / closing the two-plate hinge and the plate-shaped base at the extension end.
Forward or backward on the base, or a plate-shaped base or notch
Linear or circular in relation to the rotation of the angle setting plate itself
The angle scale formed on the
Or the underside of the plate-shaped base or cutting angle setting plate.
I can point you out. Plate-shaped base or notch
The connecting rod and the stopper are the functional parts that rotate and control the angle setting plate.
When configured by, the connecting rod can be straight or circular.
It can be formed into two types of shapes, one end of which is shaped like a plate.
On the side opposite to the center of rotation of the base or cutting angle setting plate
A pin is rotatably attached to the side end or near the side end by a pin.
Stopped or fixedly connected, the tabs are plate-shaped
Installed at the base of the base or the base of the lifting guide mechanism and connected
Displacement due to vertical movement or rotation of the rod is stopped to prevent rotation (off
Include) Stop the angle at any angle. Rotation angle in this case
Degree markings are straight lines or circles formed on the connecting rod.
Orphaned angle scale and indicator needle, indicator mark, or plate
Depending on the shape of the base or the underside of the cutting angle setting plate,
Can be shown. And this functional part with the connecting rod
When using a stopper, a plate-shaped base or cut
Form a rotation spindle on the center line of rotation of the included angle setting plate
Or if the rotation spindle is not formed,
Form a mechanism to guide the center of rotation. A plate-shaped base
The function part that rotates and controls the cutting angle setting plate
And the pinion, the rack is straight
It can be formed into two types of circular arc shape, one end of which
To the plate-shaped base or the cut angle setting plate with a pin
It is rotatably locked or fixedly connected,
For vertical movement or rotation of the lock or rotation of the pinion
Therefore, rotate the plate-shaped base or the cutting angle setting plate
Or control their manual direct rotation
To do. In this case, the warm-ho
By connecting the ears and worms, a plate-shaped base or cut
The function to rotate the included angle setting plate, and the arbitrary rotation angle
The function to stop can be easily obtained. Rotation angle mark
Shown is a straight or circular arc formed on the rack.
Angle scale or pinion, worm wheel, wheel
Circular arc-shaped angle scales related to ohms, pointers, fingers
Mark, plate-shaped base or cutting angle setting
It can be indicated by the lower surface of the plate or the like. Plate-shaped ba
Function part that rotates and controls the blade or cutting angle setting plate
To the screw shaft and the nut or female thread that is screwed onto the screw shaft.
Therefore, when configuring it, one end of the screw shaft should not be a plate-shaped base.
The nut that is locked to the wheel cutting angle setting plate and screwed onto the screw shaft.
Rotate the screw shaft to move the screw shaft forward and backward,
Rotate the wheel cutting angle setting plate, or
Formed on the upper surface of the base or at the base of the lifting guide mechanism
Screw the screw shaft to the female screw part
The screw shaft is moved back and forth by the rotation of the rotation Nandle etc.
Then, rotate the plate-shaped base or the cut angle setting plate.
It In this case, the rotation angle is indicated by the screw shaft or nut.
Rotation, or plate-shaped base or cutting angle setting plate
The circular angular scale formed in relation to the rotation of the
Indicator needle, instruction mark, plate-shaped base or cutting angle setting
It can be indicated by the lower surface of the plate or the like. I mentioned above
The rotation of the plate-shaped base or the cutting angle setting plate.
It is necessary to guide the center of rotation without forming a rotation spindle on the core wire.
In case of using, for example, a plate-shaped base or cutting angle setting plate
The function part that rotates and controls the
Several sections of links, connecting rods and fasteners, racks and pinions,
With a nut or female thread that is screwed to the screw shaft and screw shaft
When configured, it forms a centripetal mechanism that guides the center of rotation.
The centripetal mechanism is composed mainly of links of multiple sections, and its bending
The one that is guided by rotation and the main body of the two-plate hinge
However, it should be constructed in two ways, one that is guided by opening and closing.
You can A centripetal mechanism is constructed by links of multiple sections.
In the case, set one end to a plate-shaped base or cut angle
It is locked to a plate and the other end is a plate-shaped base or a lifting guide mechanism.
Locked to the base to set a plate-shaped base or cutting angle
The multi-section links that bend and rotate as the plate rotates
Rotated by the motion determined by the link ratio of
Lead the heart of. A centripetal mechanism is composed of two plate hinges.
If you need to use a two-plate hinge, use a base with a plate-shaped central angle.
Or a triangle corresponding to the full rotation angle of the cutting angle setting plate
Shape, or trapezoidal shape, or fan shape, or
The shape is similar to these, and one end of it is a plate-shaped base or
Locks to the cutting angle setting plate, and the other end is a plate-shaped base (6)
Or a plate-shaped base that is locked to the base of the lifting guide mechanism
Or 2 plate hinge accompanying rotation of the cutting angle setting plate
The center of rotation is guided by opening and closing. (Example) An example will be described with reference to the drawings.
In the embodiment shown in FIG. 5, the plate-shaped base (6) has a cutting action.
Placed to the left of the endless saw (2) exposed to the line (zone)
The plate-shaped base (6) is at an angle of 50 ° to 60 °.
When it is rotated counterclockwise, the extension line (face) on the bottom surface of the endless saw
Intersect with a line 1 to 4 mm from the left tip of the sawtooth (2A).
Rotate the right side edge of the plate-shaped base (6) so that
An axis (e) is formed. Left side of plate-shaped base (6)
At the end, form a circular groove on the side surface with respect to the circumferential surface
The lower end of the circular grooved link (h1) is fixed,
Lifting guide mechanism in the groove of the grooved link (h1)
Tighten the screw (Ia1) with butterfly head installed at the base of (7).
The plate-shaped base (6) can be rotated by attaching
It is stopped at the (cut) angle. The plate-shaped base of this example
The total rotation angle of the space (6) is counterclockwise with reference to the right angle.
Approximately 60 ° for turning and about 10 ° for rotating to the right, a total of about 70 °
And the rotation angle is indicated by a circular grooved link (h
1) Linear angle scale (11b) formed on the circumferential surface
-1) and the instruction mark (11d-1) at the base part
Pointed out. The embodiment shown in FIG. 6 has a grooved phosphorus.
Circle (h2) is an arcuate shape that forms a linear groove on the circumferential surface
And the lower end is fixed to the left side of the plate-shaped base (6)
Then, it is in the groove of the grooved link (h2) and is a lifting guide mechanism.
With the screw (Ia2) with butterfly head installed at the base of (7)
Rotation of the grooved link (h2) is stopped, and the plate-shaped base
The rotation (cutting) angle of (6) is set. This example
Form a rotation spindle at the center of rotation of the plate-shaped base (6).
No, a total of four-bar links (12a) and pins (12a-m)
The plate-shaped bed is formed by the centripetal mechanism (12)
The center of rotation of the base (6) is guided, and the link of Section 4
Among (12a), one end of the link of 2 sections is a plate-shaped base
Locked at (6), and guide one end of the remaining 2 links
It is locked to the base of the mechanism (7), and links (12
In a), form three parallelograms and derive the link ratio
Depending on the function, the center of rotation of the lower surface of the plate-shaped base (6)
Line 1 to 4 at the left tip of the sawtooth (2A) of the endless saw (2)
It is guided so that it may be located below mm. Plate of this example
The total rotation angle and the rotation angle marking of the base (6) are
It is almost the same as the embodiment shown in the figure. In Figure 7.
The embodiment shown is a linear grooved link (h3) and a butterfly headed net.
Of the plate-shaped base (6)
Position where the center of rotation corresponds to the right side of the plate-shaped base (6)
Centripetal mechanism composed of two plate hinges (12b)
(12) is formed and guided. Two-plate hinge (12
The shape of b) is the total rotation angle of the base (6) whose central angle is plate-like.
(Rotate the plate-shaped base 60 ° counterclockwise and 10 ° clockwise.
It has a trapezoidal shape that divides the
Yes, pin one end of trapezoidal two-plate hinge (12b)
(12b-s) locks to the plate-shaped base (6),
The other end is a pin (12b-s) for a lifting guide mechanism (7)
The base plate (6) is locked to the base of the
Due to the guiding function of the two-plate hinge (12b) that opens and closes together
Then, the center line of rotation of the lower surface of the plate-shaped base (6) is sawtoothed.
It is located 1 to 4 mm below the left tip of the part (2A).
It In the embodiment shown in FIG. 8, the plate-shaped base (6) is rotated.
The function part for switching and controlling is linked by the link (j4) of multiple sections.
Center of rotation of the plate-shaped base (6)
Two-section main link located radially outward with respect to
One end of (j4a) is locked to the plate-shaped base (6), and the other end
To the base of the lifting guide mechanism (7),
Insert one end of the secondary link (j4b) of section 2 located inward
Locked to a plate-shaped base (6) and the other end is a lifting guide mechanism
It is locked to the base of (7) and the main link (j4a) has 2 sections.
Auxiliary link (j4c) is connected to form a quadrilateral
Link link (j4c) and secondary link (j4b)
Connect by (j4d) and screw shaft on the diagonal of the quadrangle
(K4) was installed and formed at the end of the screw shaft (k4)
By rotating the screw shaft (k4) with the rotating handle (14)
Transforming the quadrilateral, the total of seven sections of the link
By the interlocking bending rotation, the center line of rotation is changed to the sawtooth portion (2
Position it 1 to 4 mm below the left tip of A) and place it in a plate-shaped base.
Rotate the sleeve (6). . Of the rotation angle of this embodiment
The marking is on one end of the main link (j4a) that locks to the base.
Formed and rotate as the main link (j4a) bends and turns
Indicating needle (11c-4) and rotating indicating needle (11c-4)
-4) A circular angular scale formed on the base around
(11b-4). In Figure 9
The embodiment shown is a machine for rotating and controlling the plate-shaped base (6).
The Noh part is composed mainly of links (j5) of 4 sections
The link in section 4 (j5) is the link in section 2
Lock one end of the tab to the plate-shaped base (6), and
Lock one end of the link to the base of the lifting guide mechanism (7).
Set 4 parallel links (j5) to form 3 parallelograms
ing. And one of the three parallelograms
Install the angle adjustment rod (n5) on the diagonal of the quadrangle
Direct manual rotation of the base (6) of the
Of the four sections that bend and rotate with the rotation of the base (6).
Its structure determined by the link ratio of links (j5)
1 of the left tip of the sawtooth part (2A) by its own guiding function
-4 mm below is the center line of rotation of the plate-shaped base (6)
Control. Rotation (cutting) angle of the plate-shaped base (6)
Is a diagonal of one of the quadrilaterals with angle adjustment (n5)
Tighten the screw (Ia5) with butterfly head installed on the connection point of the link.
Deformation of the quadrilateral and attachment of section 4 by attaching
It stops the bending and turning of and is stopped at an arbitrary angle. This fruit
The total rotation angle of the plate-shaped base (6) of the example is shown in FIG.
Similar to the example, there are about 70 angles in total, and the rotation angle is marked.
Is a linear angle formed on the upper surface of the angle adjusting rod (n5).
Set the scale (11b-5) and screw with butterfly head (Ia5)
On the indication mark (11d-5) on the connection point of the placed link
Therefore, it is indicated. Implementation shown in FIGS.
For example, a new cutting angle below the plate-shaped base (6)
Install the setting plate (6x) and set the cutting angle setting plate (6x)
Two sheets that form the rotation and control function parts in two places, front and back
The plate hinge (o6) is mainly used. 2 board
The shape of the flange (o6) is such that the central angle is the cutting angle setting plate (6
x) Full rotation angle (60 ° to the left of the cutting angle setting plate, right
A total of about 70 degrees that rotates 10 degrees for rotation is almost 2
It is a trapezoidal shape that divides equally, and a pair of lower hinge plates
Lock the lower end of (o6a) to the cut angle setting plate (6x)
The upper hinge plate (o6b) at the top with a plate-shaped base
The extended end of the lower hinge plate (o6a) locked to (6)
On the upper surface of the plate-shaped base (6),
6) and slide the connecting rod (p6) in the front-back direction.
It was formed along two points by moving along
2 plate hinge (o6) is opened and closed to set the cutting angle
(6x) 1 to 4 mm below the left tip of the sawtooth portion (2A).
The position is rotated around the center line of rotation. Rotation (cut)
The angle stop was installed on the slide connecting rod (p6).
Use wing nut (Ib6) and retaining bolt (Ic6)
The angle of rotation is marked by a slide that moves in the front-back direction.
A plate-shaped base formed along the connecting rod (p6)
Linear angle scale (11b-6) on top of (6)
And an instruction mark formed on the slide connecting rod (p6)
(11d-6). Fig. 12
The embodiment shown in Fig. 10 is the front of the embodiment shown in Figs.
And the opening and closing of the two-plate hinge (o6) formed at two locations behind
Is a plate-shaped base on the upper end of the upper hinge plate (o6b).
(6) Extension of locking point above and hinge plate (o6a) below
The distance between the locking points on the end plate-shaped base (6) is changed.
It is supposed to be done by making it
Install the screw shaft (k7) between them and place the screw shaft (k7) at the bottom.
The nut formed at the locking point of the extended end of the hinge plate (o6a)
Screw to the shaft (t7) to rotate the end of the screw shaft (k7).
By rotating the handle (17), a two-plate hinge
Open and close (o6) and rotate the cutting angle setting plate (6x).
I am making it. The embodiment shown in FIG. 13 has a plate-shaped base.
Trapezoidal two-plate hinge at the right side of (6)
Form a centripetal mechanism (12) constituted by (12b)
To guide the center of rotation of the plate-shaped base (6),
Connect the lower end of the connecting rod (u8) to the left end of the plate-shaped base (6).
Lifting guide machine, which is rotatably locked by a pin (m8)
Displace the linear connecting rod (u8) at the base of the structure (7).
Stop the stop (I) with a straight connecting rod (u8)
Grip mechanism (v
8), the plate-shaped base (6) can be rotated at any time.
It has stopped at the turning (cutting) angle. In this case, the connecting rod
The center of the arc is the rotation center of the plate-shaped base (6).
It may be a circular arc shape that matches, in which case the lower end is plate-shaped
Fixedly connected to the base (2). Rotation angle mark
Shown is a linear angle scale formed on the connecting rod (u8).
(11b-8) and indication mark (11d-8)
Pointed out. The embodiment shown in FIG. 14 has a plate-like shape.
Two trapezoidal plates at the right side of the base (6)
Centripetal mechanism (12) constituted by a hinge (12b)
To form the center of rotation of the plate-shaped base (6),
Of the linear rack (w9) at the left end of the base (6)
Lock one end and attach the rack to the base of the lift guide mechanism (7).
Pinion (x9) that meshes with (w9), pinion (x
9) Worm wheel (y9) and Woo connected
Rotary hand on the same axis as the worm (z9) and worm (z9)
Install the le (19) and rotate the rotating handle (l9)
By moving the rack (w9) forward and backward,
Rotate the sleeve (6). The rotation angle is indicated by the rack
(W9) A linear angle scale (11b-
9), indicated by the indication mark (11d-9)
ing. The embodiment shown in FIG. 15 has a plate-shaped base (6).
Trapezoidal two-plate hinge (12
a plate forming a centripetal mechanism (12) constituted by b)
Guides the center of rotation of the base (6) to form a plate-shaped base
The lower end of the screw shaft (q10) can be freely rotated to the left end of (6)
And the screw shaft (q10) to the base of the lifting guide mechanism (7).
Screw the toothed nut (T10a) installed on the bottom to
Same as the gear (R10b) connected to the nut (T10a)
Rotate the rotating handle (l10) on the shaft to rotate the screw shaft (q1
0) is moved forward and backward, and the plate-shaped base (6) is rotated.
It The rotation angle is indicated by the finger formed on the gear R10b).
Indicator needle (11c-10) and its rotating indicator needle (11c-10)
-10) A circular arc-shaped angle scale (11
b-10). (Effect of the Invention) The present invention sets the cutting angle as described above.
(Adjustment) device, but this cut angle is a right angle
Based on the cutting angle, a plate-shaped base or cutting angle
Rotate the degree setting plate to the left or right to rotate about 6
Allows cutting action at an angle of 0 ° without causing lateral sliding
Limit. This is a plate-shaped base or cut angle setting.
To the left of the endless saw that exposes the plate to the cutting action line (zone)
As an example of arranging it, I verified that it has already been executed.
As shown in the example, a plate-shaped belt
Rotate the base or cutting angle setting plate counterclockwise and turn about 60 ° clockwise.
Roll it to make an angle of about 10 ° into the cut angle range,
If you flip the aircraft back and forth as is,
Looking at it, a total of 120 ° for left and right rotations
It is in the range of degrees. That is, the plate-shaped base or cutting angle
Position the degree setting plate either on the left side or the right side of the endless saw.
However, the cutting action is possible without causing lateral sliding.
This cutting angle setting (adjustment) device covers the entire cutting angle.
Placement is covered, and the cutting angle is arbitrary in the covered area
Can be selected and set. A plate-shaped base
The lower surface of the cutting angle setting plate has small unevenness with uniform undulations.
It may be a continuous surface with a high frictional resistance, or
Take a measure such as sticking a thin film of rubber on the bottom surface,
The lower surface is made of a flexible material with high frictional resistance.
By making the cutting angle steeper,
Therefore, it is possible to suppress an increase in lateral sliding, and
In addition, beyond the 60 ° angle limit that does not cause lateral sliding,
It enables cutting action with a steeper cutting angle. Plate
Rotation spindle at the center of rotation of the base or cutting angle setting plate
1 to 4 m at the tip of the ideal sawtooth part when forming
Physically forming a rotation spindle on the center line of rotation below
Cannot be made, and the rotation spindle is formed at a position distant from the center line.
It is supposed to be formed, and the void space in the vertical direction of the aircraft
Form a multi-section link, or 2
Forming a centripetal mechanism composed of single-plate hinges
Depending on the rotation of the plate-shaped base or cutting angle setting plate
You can match the center with its ideal centerline,
The body can be made compact and lightweight for carrying. Since
The cutting angle setting (adjustment) device configured as above
Select the cutting angle arbitrarily and set (adjust)
By the function of being able to
It can be put to practical use in a portable saw machine,
It is possible to increase the value in use on the spot and the value as a product.
Wear.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a left side view of one embodiment of a portable saw machine forming a cutting angle setting (adjustment) device of the present invention. FIG. 2 is a sectional view taken along the line AA of FIG. FIGS. 3 and 4 are views for explaining the form of fitting of the endless saw and the guide plate, FIG. 3 is an enlarged view of a part of FIG. 1, and FIG. 4 is a further expanded view of FIG. Omitted B
-B line sectional view. 5th, 6th, 7th, 8th, 9th, 10th, 13th, 1st
4 and 15 are sectional views showing an embodiment of the present invention by enlarging a part of FIG. FIG. 11 is a tenth left side view. FIG. 12 is a left side view of FIG. 10 different from that of FIG. 11. 1 ... Frame body, 1a ... Front pedestal of frame body, 1
b ... rear column of frame body, 1c ... handle of frame body, 2 ... endless saw, 2A ... saw tooth, 2B ... saw blade, 3 ... suspension pulley, 3a ... suspension pulley Axis of rotation,
4 ... Drive unit, 4a ... Electric motor, 5 ... Operation switch, 6 ... Plate-shaped base, 6x ... Cutting angle setting plate,
7 ... Elevating guide mechanism, 7a ... Guide vertical shaft, 7b ... Sliding sleeve, 7c ... Support plate, 7d, 7e ... Link, 7
f ... Torsion coil spring, 7g ... pin, 7h ... storage drum, 8 ... partition plate, 9 ... tension mechanism, 9a ... screw shaft with butterfly head, 10 ... guide plate 11 ... cutting angle setting ( Adjustment device, 11b ... Angle scale, 11c ... Indicator needle,
11d ... instruction mark, 12 ... centration mechanism of cutting angle setting (adjustment) device, 13 ... cutting direction angle setting (adjustment) device, 13a ... angle ruler, 13b ... angle scale, 13c ... indicator needle, 13d ... Instruction mark, 14 ...
… Centering mechanism of cutting direction angle setting (adjustment) device.

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[Procedure Amendment] [Submission Date] February 15, 1994 [Procedure Amendment 3] [Amendment Document Name] Specification [Amendment Item Name] Invention Title [Amendment Method] Change [Amendment Content] Name] Cutting angle setting device for portable saw machine

Claims (1)

What is claimed is: (1) A gate-shaped frame body (1) in which the head is connected with the lower part opened, and a sawtooth portion (2A) is formed radially outward on the same plane or in the same layer. Then, a ring-shaped endless saw (2) with a saw blade (2B) formed inside, a frame body (1)
A plurality of suspension pulleys (3) are arranged on the same vertical plane that extends longitudinally in the front-rear direction or in the same vertical layer with the rotation axis as the horizontal direction, and the suspension pulley (3) is rotated to circulate the endless saw (2). Of the endless saw (2) exposed to the cutting action line (zone) between the drive part (4) to be rotated and the lower end parts of the front leg pillar part (1a) and the rear leg pillar part (1b) of the frame body (1). Installed above,
A guide plate (1) in the form of a fitting with an endless saw (2) at the lower end
0), a plate-shaped base (6), which is arranged on the side of the endless saw (2) exposed to the cutting action line (zone) and whose lower surface contacts the material to be cut, the frame body (1) and the plate-shaped base An elevating guide mechanism (7) interposed between (6) for guiding the vertical reciprocating motion of the machine body excluding the plate-shaped base (6), and an endless saw (2)
In a portable saw machine constituted by a tensioning mechanism (9) for applying tension to the blade, the tip of the sawteeth of the sawtooth portion (2A) of the endless saw (2) exposed at the cutting action line (zone) is set as the centerline of rotation. Or whether to rotate the center line of rotation in the vicinity thereof and rotate the plate-shaped base (6) or the cutting angle setting plate (6x) newly installed below the plate-shaped base (6). , Or the function of controlling their rotation, and the function of stopping the rotated plate-shaped base (6) or cutting angle setting plate (6x) at an arbitrary rotation angle, the plate-shaped base (6) or cutting An incision angle setting (adjustment) device (11) provided with an angle scale (11b) for indicating (reading) the rotation angle of the angle setting plate (6x), an indicating needle (11c) or an indicating mark (11d). (2) Grooved (narrow window) link (h) connecting one end to the plate-shaped base (6) or the cut angle setting plate (6x), and in the groove of the grooved link (h) Mainly composed of a stopper (I) for stopping the displacement of the link (h), the plate-shaped base (6) or the cut angle setting plate (6x) is rotated by the displacement of the grooved link (h), or 2. A cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1, which controls the rotations thereof. (3) Whether the plate-shaped base (6) or the cut angle setting plate (6x) is formed by mainly forming the multi-section link (j) and bending and rotating the multi-section link (j). Or a cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1, which controls the rotation thereof. (4) A cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1 or 3, wherein the link (j) having a plurality of sections forms a quadrangle in a part or all thereof. (5) A two-plate hinge having a triangular shape, a trapezoidal shape, a fan shape, or a shape similar thereto corresponding to all the rotation angles of the plate-shaped base (6) or the cut angle setting plate (6x) ( o) as the main component, and part 2
The cutting angle setting of the portable saw machine according to claim 1, wherein the plate-shaped base (6) or the cutting angle setting plate (6x) is rotated by opening and closing the single plate hinge (o), or the rotation thereof is controlled. Adjustment) device (11). (6) A connecting rod (u) having one end connected to the plate-shaped base (6) or the cut angle setting plate (6x) and a stopper (I) for stopping the displacement of the connecting rod (u) are mainly configured. 2. The cutting angle setting for a portable saw machine according to claim 1, wherein the plate-shaped base (6) or the cutting angle setting plate (6x) is rotated by the displacement of the connecting rod (u) or the rotation thereof is controlled. Adjustment) device (11). (7) The rack (w) whose one end is connected to the plate-shaped base (6) or the cutting angle setting plate (6x) and the pinion (x) are mainly configured, and the displacement of the rack (w) or the pinion (x) is constituted. The cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1, wherein the plate-shaped base (6) or the cutting angle setting plate (6x) is rotated or controlled by the rotation. (8) A screw shaft (q) having one end locked to the plate-shaped base (6) or the cut angle setting plate (6x), and a nut (T) or a female screw portion (f) screwed to the screw shaft (q). ) As a main body, and the plate-shaped base (6) or the cut angle setting plate (6) is rotated by the rotation of the screw shaft (q) or the nut (T).
2. A cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1, wherein x) is rotated. (9) Plate-shaped base (6) or cutting angle setting plate (6)
The cutting angle setting (adjustment) of the portable saw machine according to claim 1, wherein a centering mechanism (12) for guiding the center of rotation is formed when the rotation spindle (e) is not formed on the center line of rotation of x). Device (11). (10) The centripetal mechanism (12) has a multi-section link (12a).
The cutting angle setting (adjusting) device (11) for a portable saw machine according to claim 1 or 9, which is configured as a main body and guides a center of rotation by bending and turning a link (12a) having a plurality of joints. (11) The centripetal mechanism (12) has a triangular shape, a trapezoidal shape, a fan shape, or the like corresponding to all the rotation angles of the base (6) having a plate-shaped central angle or the cutting angle setting plate (6x). 2 plate hinge (12
b) as a main component, and its two-plate hinge (12
A center of rotation is guided by opening and closing a).
Depth angle setting (adjustment) device of the portable saw machine described (1)
1).