JPH07115256B2 - Shearing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shearing machine, and more particularly to a body portion having a fluid actuated cylinder device, a movable blade attached to a piston rod of the fluid actuated cylinder device, and a body. A shearing machine having a fixed blade attached to the part.

[0002]

2. Description of the Related Art A shearing machine used for cutting steel bars in construction work, construction equipment work, machine fabrication, machining, etc. is known. In this type of shearing machine, there is known a so-called full-thread cutter mainly configured to shear a long screw and a so-called full-thread bolt such as a hanging bolt by a pair of fixed blade and movable blade.

A full screw cutter is generally located at the rear end portion of the cutter and is gripped by the dominant hand, eg, the right hand or the main handle or portable handle, and the opposite hand, eg, the left hand, and the body portion of the cutter. And an auxiliary handle for intermediately supporting. A fixed blade is integrally supported on the jaw-shaped head portion of the main body portion that extends forward, and a movable blade is attached to the piston rod of the fluid-operated cylinder device that constitutes the main body portion. The fixed blade is formed with a semi-circular recess substantially complementary to the outer peripheral portion of all screw bolts,
An inner screw or a female screw corresponding to the outer screw or the male screw formed on the outer periphery of the all screw bolt is formed on the inner peripheral surface of the recess. During the cutting operation, the worker holds the portable handle with one hand, supports the auxiliary handle with the other hand, and inserts all screw bolts between the fixed blade and the movable blade. The cylinder device extends the piston rod and advances the movable blade, so that the movable blade and the fixed blade relatively come close to each other. The all-screw bolt is sheared in a direction perpendicular to the axis by the approach of the movable blade and the fixed blade, and cut at a desired portion.

Also, in this type of full-screw cutter,
The applicant has proposed a structure in which a fixed blade is divided into left and right fixed blade portions and a movable blade is inserted into a groove portion formed between the fixed blade portions (Japanese Patent Application No. 4- Four
7181, Japanese Patent Application No. 4-80839).

[0005]

This type of full-screw cutter is a full-screw bolt that has already been installed in the upper area of the operator.
For example, it is often used to cut lower parts such as ceiling suspension bolts and bolts hanging from an upper horizontal runner. In such a cutting operation, the worker holds the portable handle extending downward and supports the rear end of the cutter. However, since the auxiliary handle is generally oriented at a right angle to the direction of the portable handle and extends laterally from the main body portion, the fingers holding the auxiliary handle should be installed on the light iron runner or duct on the ceiling already installed. It is difficult to hold the auxiliary handle as desired by interfering with the horizontal runner or the like.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a lower portion of a member to be processed which is already disposed in an upper region of an operator and extends vertically.
It is an object of the present invention to provide a shearing machine provided with an auxiliary handle that can be firmly gripped with fingers from the lower side or the lateral side when shearing .

[0007]

In order to achieve the above object, the present invention provides a body portion having a fluid actuated cylinder device, a portable handle extending from the body portion, and an intermediate support for the body portion. an auxiliary handle that is disposed on the front of the carrying handle to, possess a movable blade attached to the piston rod of the cylinder device, and a fixed blade mounted on said body portion, extending in the vertical direction
Shearing that allows the lower part of the work piece to be sheared
In the machine, on both sides of the jaw type head part of the main body part
Is provided with a mounting means for mounting the auxiliary handle.
The attachment means is a male member provided on the auxiliary handle.
The screw hole can be screwed in, and the screw hole is
It has openings on both sides of the jaw-shaped head and extends vertically.
In the use of shearing the lower part of the workpiece to be processed,
While the portable handle extends downward,
At the jaw-shaped head portion by the attaching means.
The auxiliary handle attached is downward from the main body portion
The attachment means is fixed to the movable blade so as to extend.
Substantially parallel to the work piece located between the blade and
A shears characterized by holding said auxiliary handle in a direction .

According to the shearing machine having the above-mentioned structure, the hanging ceiling
A vertically extending cover that cuts the lower end of the hanging bolt.
When shearing the lower end of the processed member, a portable hand
Auxiliary hand attached to the jaw-shaped head part
Also extends downwards from the shears, similar to a portable handle.
It In this way, the auxiliary handle is attached so as to extend downward like the portable handle, so the ceiling suspension bolt
The pressurized extending already disposed to and vertically above range as
When cutting the lower part of the work member, the fingers holding the auxiliary handle do not interfere with the already installed light iron runner on the ceiling, ducts, or the horizontal runner. Therefore, the operator can hold the portable handle with one hand from the bottom or side.
Not only can it be firmly held, but the auxiliary handle can also be firmly held with the other hand. Shi
Also, the screw holes that make up the auxiliary handle attachment means
It opens on both sides of the mold head, so place the shears on the floor.
When working, use the shears or the user's dominant hand
Auxiliary hand in the opposite direction to the portable handle
Can be installed.

[0009] In a preferred embodiment of the present invention, prior to
The workpiece is a full screw bolt, and the fixed blade is
In order to configure the shearing machine as a full screw cutter,
With a recess having a shape substantially complementary to the outer circumference of the divolt,
The inner peripheral surface of the recess corresponds to the outer thread of the full screw bolt.
Inner screw is formed, and the fixed blade is fixed to the left and right.
A blade portion, and the recess is formed in each fixed blade portion.
And the groove formed between the fixed blade portions is the movable blade.
Arranged to receive the movable blade when the
Be done . From another aspect, the present invention provides a fluid-operated cylinder device.
And a portable housing extending from the body.
And the mobile phone for intermediate support of the main body portion.
Auxiliary handle arranged in front of the handle for
A movable blade attached to the piston rod of the Linda device,
And a fixed blade mounted on said body portion, a vertical direction
The lower part of the work piece that extends to
In the shearing machine, the side surface of the jaw type head part of the main body part
Is equipped with mounting means for mounting the auxiliary handle.
And the mounting means is provided on the auxiliary handle.
It consists of a screw hole that allows the male screw to be screwed in ,
For use in shearing the lower part of the extended workpiece
The portable handle extends downward, and
In use, the jaw-shaped head portion is attached by the attaching means.
The auxiliary handle attached to the
So as to extend in one direction, the attachment means includes the movable blade and the
Substantially flat with the work piece placed between the fixed blade
The auxiliary handle held in the row direction, the length of the male screw portion of the front Symbol auxiliary handle (35), the length rather is set than the required screw-in depth of the screw hole (23) of the jaw head portion,
Up and down to position the shears in place
The support plate (42) of the extending fixing jig (40) is the auxiliary
The tip surface (34) of the handle and the side surface of the jaw-shaped head portion
A shearing machine characterized by being inserted between the two.
According to such a shearing machine, a worker works at a high place.
When carrying from below or from the side, carry handle and auxiliary hand
Tomo and can be firmly stable gripping Le
The support plate of the fixing jig for positioning the shears at a predetermined position on the work surface when working on the floor or on a table, etc., and the tip surface of the auxiliary handle and the side surface of the jaw-shaped head part. and interposed between, substantially shear the floor surface or the like by the fixing jig
The machine can be stationary and the shearing operation can be performed.

According to one preferred embodiment of the invention,
It is possible to screw in the cut end of all the screw bolts that have been cut
A plurality of screw holes are provided in the jaw-shaped head portion,
The holes are used to check the cut state of the cut part of the full screw bolt.
Configure a reference gauge for confirmation or inspection. this
Such as the threaded hole, that is, cut against the reference gauge
By screwing the cut surface or cut portion of all screw bolts, etc.
Nuts, etc.
Check whether it is possible or not, and
It can be inspected for burrs or distortions.

[0011]

The preferred embodiments of the shearing machine according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
6 to 6 are a front view, a plan view, a rear view, a bottom view, a left side view and a right side view of the shears according to the embodiment of the present invention.

The illustrated shearing machine 1 is mainly configured as a so-called portable full-screw cutter for cutting full-screw bolts. As shown in FIG. 1, the shearing machine 1 includes a portable handle 2, an electric motor 3 supported by the portable handle 2, a pump unit 4 connected to the electric motor 3, and a hydraulic operating mechanism together with the pump unit 4. Hydraulic cylinder part 5
And a jaw-shaped head portion 6 extending forward from the hydraulic cylinder portion 5
It is composed of and.

The portable handle 2 extends downward from the electric motor 3 and is designed to have a size that allows an operator to hold it with a dominant hand, for example, a finger of a right hand. A trigger switch 7 for manually controlling the operation of the electric motor 3 is provided on the front side surface of the portable handle 2. The electric motor 3 of this example is composed of a general AC commutator motor,
An output shaft (not shown) extending into the pump unit 4 is provided. However, the electric motor 3 may be configured by a rechargeable DC motor. The output shaft of the electric motor 3 drives a hydraulic pump (not shown) provided in the pump unit 4,
The pump unit 4 supplies pressure oil to the hydraulic cylinder unit 5.

The hydraulic cylinder portion 5 is provided with a piston / cylinder mechanism (not shown), and is configured to extend the piston rod 9 fixed to the piston with pressure oil. The structure of the drive mechanism of such a shearing machine is disclosed in JP-A-3-18.
Since it is described in detail in Japanese Patent No. 9022, Japanese Patent Application No. 4-80839, etc., further detailed description will be omitted by citing these publications or applications.

The movable blade 10 is fixed to the tip of the piston rod 9, and the fixed blade 11 is attached to the front end of the jaw-shaped head 6 so as to face the movable blade 10.
0 and the fixed blade 11 are aligned along the axis of the piston rod 9. As shown in FIGS. 2 and 4, the movable blade 10 has an arcuate recess 12 capable of accommodating a part of the whole threaded bolt (shown in phantom in FIG. 1) such as a ceiling suspension bolt. Are formed.

A fixed blade 11 facing the movable blade 10 is attached to the front end portion of the jaw-shaped head portion 6, and the fixed blade 11 is provided.
Is a pair of left and right fixed blade portions 13, 1 as shown in FIG.
Equipped with 3. The fixed blade portions 13, 13 are spaced from each other by a predetermined distance, and a groove portion 14 extending in the lateral direction is formed between the fixed blade portions 13, 13. The groove portion 14 is positioned at a position that exactly faces the movable blade 10, and receives the movable blade 10 when the movable blade 10 moves forward. As shown in FIGS. 2 and 4, the fixed blade portions 13 and 13 are formed with semicircular recesses 15 capable of accommodating half of all screw bolts, and the inner peripheral surface of the recess 15 has an outer circumference of all screw bolts. A female screw is formed that is substantially complementary to the male screw formed on the. When the movable blade 10 advances due to the extension of the piston rod 9, the movable blade 10 and the fixed blade 11 house all the screw bolts in the recesses 12 and 15, and the all screw bolts are in the shearing direction, that is, at right angles to the axis line of the all screw bolts W. Cut in the direction.

The jaw-shaped head portion 6 extends forward from the lower end portion of the casing of the hydraulic cylinder portion 5. On the side of the jaw type head portion 6, a flange portion 20 extending in the longitudinal direction of the jaw type head portion 6 projects laterally from the jaw type head portion 6. As shown in FIGS. 2 and 4, screw holes 21, 22 and 23 formed as female threads on the inner peripheral surface penetrate the flange portion 20. The screw holes 21 are all screw bolts W with a diameter of 1/2 inch.
Has a diameter capable of being screwed in, and the screw hole 22 has a diameter capable of screwing a full-threaded bolt W having a diameter of 3/8 inch. The screw hole 23 has a diameter such that a male screw of an auxiliary handle (not shown) can be screwed in.

FIG. 7 is a plan view showing an auxiliary handle having a male screw that can be screwed into the screw hole 23. The auxiliary handle 30 is held by the hand opposite to the dominant hand, for example, the finger of the left hand, and the grip 31 for intermediately supporting the shears 1.
The grip 32 is formed at the end of the grip portion 31, an extension portion 33 protruding from the collar 32 on the side opposite to the grip portion 31, and a screw portion 35 protruding from the tip surface 34. The screw portion 35 is a male screw that is screwed into the screw hole 23 of the flange portion 20.

8 and 9 are a front view and a left side view showing a usage state in which the auxiliary handle 30 is attached to the shears 1. When the screw portion 35 of the auxiliary handle 30 is screwed into the screw hole 23 of the flange portion 20, the auxiliary handle 30 extends substantially parallel to the portable handle 2 of the shears 1 and hangs from the flange portion 20. Further, the collar 32 of the auxiliary handle 30 is horizontally oriented. The fingers holding the grip 31 are restricted from moving upward by the collar 32, and
Can be firmly supported. Further, since the screw hole 23 penetrates the flange portion 20, the screw portion 35 is moved in the direction shown in FIG. 8 and FIG. 9 for irregular use or for a worker with a left-handed hand. It can be screwed into the screw hole 23 from the opposite direction.

As shown in FIG. 9, the screw portion 35 has a length that penetrates the flange portion 20 and slightly projects from the upper surface of the flange portion 20. That is, the length of the screw portion 35 is
It is set longer than the required screw-in depth of the screw hole 23. The screw portion 35 having such a length can be screwed with a fixing jig for fixing the shears 1 in place. Figure 10
[Fig. 4] is a left side view showing a state in which the shearing machine 1 is attached to a fixing jig using the auxiliary handle 30.

The fixing jig 40 is for cutting all the screw bolts with the shearing machine 1 positioned at a predetermined position, and is a horizontal substrate 41 placed on the floor of a work place or on a table. And a support plate 42 extending vertically from the upper surface of the substrate 41. The board 41 has bolt holes (not shown) for bolting the jig 40 to a work floor or the like. Further, the support plate 42 is provided with a through hole 43 through which the screw portion 35 of the auxiliary handle 30 can be inserted. The support plate 42 is inserted between the tip end surface 34 of the auxiliary handle 30 and the side surface of the flange portion 20, and the screw portion 35 of the auxiliary handle 30 is inserted into the flange portion 20 via the through hole 43 of the support plate 42. It is screwed into the screw hole 23. Thus, the flange portion 20 and the support plate 42 are integrally connected by the auxiliary handle 30, and the shears 1 are positioned by the jig 40 at a predetermined position on the floor surface or the tabletop surface.

Further, since the screw hole 23 penetrates the flange portion 20, the support plate 42 of the jig 40 can be arranged on any side of the flange portion 20 as shown by a virtual line in FIG. Screw holes 21 and 2 formed in the flange portion 20
The cut all-screw bolt piece Wa is screwed into 2. FIG. 8 shows a state in which a 3/8 inch diameter full-thread bolt piece Wa is screwed into the screw hole 22. All screw
The bolt piece Wa is obtained by cutting the whole screw bolt W having a diameter of 3/8 inch with the movable blade 10 and the fixed blade 11.
Cut portion cut by the moving blade 10 and the fixed blade 11
Minutes are screwed into the screw holes 22. All screw bolt piece Wa
Has a good cut surface without burr or distortion,
The bolt piece Wa is smoothly screwed into the screw hole 22. On the other hand,
Undesired burrs or distortions cut the whole screw bolt piece Wa
If it occurs in the cross section, the bolt piece Wa will not fit in the screw hole 22.
It is difficult to screw it in. That is, the screw hole 22 or the screw hole 21 is not
The part to be cut of the dibolt piece Wa is screwed into the nut
To confirm or inspect whether it has been cut to obtain
Used as a reference gauge.

As described above, the shearing machine 1 has the flange portion 20 extending laterally, and the flange portion 20 has the screw hole 23 into which the screw portion 35 of the auxiliary handle 30 can be screwed. The auxiliary handle 30 having the screw portion 35 screwed into the screw hole 23 hangs downward from the flange portion 20 and extends substantially parallel to the portable handle 2. Therefore, when cutting the lower part of the hanging bolt arranged in the upper area of the worker, for example, the ceiling hanging bolt or the bolt hanging from the horizontal runner with the shearing machine 1, the auxiliary handle 20 is the jaw type head. It extends below the part 6. Thus, the fingers holding the auxiliary handle 20 support the shearing machine 1 below the shearing machine 1 without interfering with members located above the shearing machine 1, such as ceiling runners and ducts. , Worker, shearing machine 1
Can be firmly supported in the middle.

Further, since the auxiliary handle 30 can be selectively screwed to any side of the flange portion 20, the auxiliary handle 30 can be attached to the desired side depending on the application or the hand of the worker.
Can be installed. Further, the screw portion 35 of the auxiliary handle 30 has a length larger than the thickness of the flange portion 20, and the tip surface 34 of the auxiliary handle 30 and the flange portion 2 are provided.
The supporting plate 42 is inserted between the shearing machine 1 and the side surface of 0 to attach the shearing machine 1 to the jig 40 by using the auxiliary handle 30.
It can be positioned at a predetermined position on a work surface such as a floor surface or a tabletop surface.

The shearing machine 1 is also provided with screw holes 21 and 22 in the flange portion 20 into which the full screw bolt pieces Wa can be screwed. ½ inch diameter all screw bolt piece Wa screw hole 2
1 can be screwed into the screw hole 22, and a whole screw bolt piece Wa having a diameter of 3/8 inch can be screwed into the screw hole 22. Take
According to the configuration, the presence or absence of burrs on the cut surface of all screw bolts W
Can be checked or inspected for distortion immediately after cutting.
Wear.

[0026]

Effects of the Invention According to the shears in the structure, ceiling hanging down
Extends vertically as if cutting the bottom end of a well suspension bolt
Portable handle when processing the lower end of the work piece
In addition, since the auxiliary handle can be attached so as to extend downward from the main body portion , the lower portion of the processed member which is already disposed in the upper region of the operator and extends in the vertical direction.
It is possible to provide a shearing machine provided with an auxiliary handle that can be firmly gripped with fingers from below or from the side when shearing . According to the shearing machine of the present invention,
When working on the floor or tabletop, use a fixing jig
Perform shearing work by fixing the shearing machine to the floor, etc.
It becomes possible to do.

[Brief description of drawings]

FIG. 1 is a front view of a shearing machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the shears shown in FIG.

3 is a rear view of the shears shown in FIG. 1. FIG.

FIG. 4 is a bottom view of the shears shown in FIG. 1.

5 is a left side view of the shears shown in FIG. 1. FIG.

FIG. 6 is a right side view of the shears shown in FIG.

FIG. 7 is a plan view showing an auxiliary handle provided with a male screw capable of being screwed into a flange portion.

FIG. 8 is a front view showing a use state in which an auxiliary handle is attached to the shears.

FIG. 9 is a left side view showing a use state in which the auxiliary handle is attached to the shears.

FIG. 10 is a left side view showing a state in which the shears are attached to a fixing jig by using an auxiliary handle.

[Explanation of symbols]

 1 Shearing machine 2 Portable handle 3 Electric motor 4 Pump part 5 Hydraulic cylinder part 6 Jaw type head part 7 Trigger switch 9 Piston rod 10 Movable blade 11 Fixed blade 20 Flange part 21, 22, 23 Screw hole 30 Auxiliary handle 31 Grip part 32 Tsuba 33 Extension part 34 Tip surface 35 Screw part 40 Fixing jig W Full screw bolt Wa Full screw bolt piece

Claims (4)

[Claims] 1. A body portion having a fluid actuated cylinder device, a portable handle extending from the body portion, an auxiliary handle disposed in front of the portable handle for intermediately supporting the body portion, and a movable blade mounted on the piston rod of the cylinder device, the have a fixed blade mounted on the body portion, shearing child the lower portion of the workpiece extending in the vertical direction
In the shearing machine capable of cutting , the auxiliary hooks are provided on both side surfaces of the jaw type head portion of the main body portion.
Attachment means for attaching the handle is provided.
For the step, screw in the male screw part provided on the auxiliary handle.
Visible screw hole, which is the jaw-shaped head.
It has openings on both sides of the part and is used for shearing the lower part of the work piece that extends in the vertical direction.
When the portable handle extends downward,
In the use, the jaw mold is attached by the attaching means.
The auxiliary handle attached to the head part is the main body part.
The mounting means is movable to extend downward from the
The workpiece and the workpiece disposed between the blade and the fixed blade.
A shearing machine, characterized in that it holds said auxiliary handles in qualitatively parallel directions . 2. The member to be processed is a full screw bolt,
The fixed blade comprises the shearing machine as a full screw cutter
Therefore, a recessed portion having a shape substantially complementary to the outer periphery of the full threaded bolt is provided, and the full threaded bolt is provided on the inner peripheral surface of the recessed portion.
Screw is formed inside corresponding to the capital of the outer screw, the fixed blade is provided with a pair of the fixed blade portion, the recess
Is formed on each fixed blade portion, and between the fixed blade portions.
When the movable blade advances, the formed groove is
The shears according to claim 1 , arranged to receive a moving blade . 3. A body portion having a fluid actuated cylinder device.
Minutes, a portable handle extending from the body portion, and the book
Forward of the portable handle for intermediate support of body parts
And an auxiliary handle arranged on the cylinder device
The movable blade attached to the ton rod and the
With a fixed blade attached to it, it can shear the lower part of the workpiece that extends in the vertical direction.
In the shearing machine capable of cutting , the auxiliary hanger is attached to the side surface of the jaw-shaped head part of the main body part.
An attachment means for attaching the dollar is provided, and the attachment means
Screw in the external thread provided on the auxiliary handle.
The bottom part of the work piece that extends in the vertical direction is sheared.
When the portable handle extends downward,
In the use, the jaw mold is attached by the attaching means.
The auxiliary handle attached to the head part is the main body part.
The mounting means is movable to extend downward from the
The workpiece and the workpiece disposed between the blade and the fixed blade.
Wherein holding the auxiliary handle to qualitatively parallel direction, the length of the male screw portion of the front Symbol auxiliary handle (35), than the required screw-in depth of the screw hole (23) of the jaw head portion <br / > is long rather set to positioning the shears at a predetermined position
Support plate (4) of the fixing jig (40) extending vertically for
2) is the tip surface (34) of the auxiliary handle and the jaw type
A shearing machine characterized by being inserted between the side surface of the pad part. 4. The cut end of all the cut screw bolts is cut.
A plurality of screw holes (21, 22) that can be screwed are provided in the jaw.
The screw hole is provided in the mold head part, and the screw hole is
To confirm or inspect the cutting condition of the cut part of
3. The reference gauge according to claim 2, wherein the reference gauge comprises
Mounted shears.