KR101649192B1 - Testing device for cutting resistor of chain saw - Google Patents

Testing device for cutting resistor of chain saw Download PDF

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Publication number
KR101649192B1
KR101649192B1 KR1020160003705A KR20160003705A KR101649192B1 KR 101649192 B1 KR101649192 B1 KR 101649192B1 KR 1020160003705 A KR1020160003705 A KR 1020160003705A KR 20160003705 A KR20160003705 A KR 20160003705A KR 101649192 B1 KR101649192 B1 KR 101649192B1
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KR
South Korea
Prior art keywords
chain saw
chain
cutting
rotation
base
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KR1020160003705A
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Korean (ko)
Inventor
이정희
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주식회사 엠피엔지니어링
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Priority to KR1020160003705A priority Critical patent/KR101649192B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The present invention relates to a test device for cutting resistance of a chain saw which automatically presses a rotating cutting chain of a chain saw brought into contact with a protector using a force of 15 N (newton) to accurately perform a cutting resistance test of the cutting chain for the cut protector. The test device for cutting resistance of a chain saw comprises: a base; a rotational unit to drive a chain saw while the chain saw is mounted on a front thereof, and rotate a cutting chain of the chain saw by inertia to rotate the chain saw to allow the cutting chain to cut a test object seated on a jig; a rotation giving means which is arranged on one side of the rotational unit, and gives a rotational force to the rotational unit to allow the chain saw to cut the test object using a force of 15 N; an elastic support means which is installed on the base while connected to the rotational unit, and uses elasticity when the rotational unit rotates to maintain the chain saw in a horizontal state; and a control unit to control the rotational unit and the rotation giving means.

Description

Technical Field [0001] The present invention relates to a cutting device for a chain saw,

The present invention relates to a cutting resistance testing apparatus for a chain saw, and more particularly, to a cutting resistance test apparatus for a chain saw, which is capable of automatically pressing a rotating cutting chain of a chain saw with a force of 15 N (newton) And more particularly, to a cutting resistance testing apparatus for a chain saw.

In general, a chain saw is a portable power saw equipped with a cutting chain that cuts branches and maneuvers with both hands to cut the wood and saw the wood.

Chain saws are divided into gasoline chain saws using fuel, electric chain saws using electric motors, and air chains using compressed air depending on the type of prime mover.

Workers using chain saws are required to wear protective gear when the rotating cutting chain comes into contact with the body, because the body of the contacted area is cut or severely damaged. However, although the protective clothing has a special fabric structure, there is a limitation that the cutting chain can not protect the body when it is contacted for several seconds or more.

Therefore, the safety standards for chain saws have been established, and the resistance against cutting of the protective gear of the cutting chain has been tested to meet safety standards when the cutting chain, which is idling while the power is cut off, is brought into contact with the protective gear .

The test method is as follows: First, put the test specimen (outer surface of the protective material and EVA styrofoam) on the jig.

Then, the chain is rotated while the chain saw is lowered by a force of 15 N (newtons), and the rotating chain is brought into contact with the test piece. At this time, the cutting chain is rotated in inertia.

At this time, if the cutting chain rotating with inertia does not stop beyond the set time, the test piece is cut off and the EVA styrofoam is damaged. If the EVA styrofoam is not damaged, the EVA styrofoam is not completely cut .

However, in order to lower the above-mentioned chain saw by a force of 15 N, conventionally, when the chain saw is held horizontally using the seesaw principle and the pressing force becomes zero, a force of 15 K is applied to the chain saw with a weight of 15 N Respectively.

However, the test method using the weight of 15 Kg as described above is not only troublesome because the process of manually joining the weights while adjusting the horizontal level of the chain saw, and also, as the setting of the equipment is performed manually, The accuracy of the test is reduced, and if the equipment is not exported correctly, it will cause a fatal safety accident.

This is because most of the accident of the chain saw is a big accident connected with the cutting of the body, so it is necessary to use only the chain that passed the accurate test.

Korean Patent Publication No. 10-2005-0089448 Korean Patent No. 10-1568102

Disclosure of the Invention The present invention has been conceived to overcome the above-described problems and technical bias, and it is an object of the present invention to provide a chain saw that can be cut by automatically pressing a rotating cutting chain of a chain saw with a force of 15 N And it is an object of the present invention to provide a cutting resistance testing apparatus for a chain saw that accurately performs a cutting resistance test of a cutting chain with respect to a protective member.

In order to accomplish the above object, the present invention provides a cutting resistance testing apparatus for a chain saw, comprising: a base; A turning portion for driving the chain saw in a state where the chain saw is coupled forwardly and rotating the cutting chain of the chain saw in inertia to rotate the chain saw to cut the test piece placed on the jig; A rotation imparting means disposed on one side of the rotary portion for imparting a rotary force to the rotary portion so that the rotating chain saw cuts the test object with a force of 15 N (newton); An elastic support means installed on the base in a state of being connected to the rotary portion and maintaining the chain saw in a horizontal state by using the elasticity when the rotary portion is rotated; And a control unit for controlling the turning unit and the turning imparting unit

In this case, the rotation imparting unit may include: a rotation block coupled to the rotation unit; A first rotation support member fixed to the base and hinged to a lower side of the rotation block to pivotally support the rotation block; A cylinder disposed on the upper side of the pivot block and hinged to the upper side of the pivot block to rotate the pivot block; And a second pivot support bracket rotatably supporting the cylinder while being fixed to the base.

Further, it is preferable that the cylinder rotates the rotary part to a pressure set to apply a pressing force of 15 N (newtons) to the chain saw.

In addition, the elastic support means may include a first elastic support member fixed to the base, a second elastic support member fixed to the rotation member, and a second elastic support member coupled to the first elastic support member and the second elastic support member, And a spring having a modulus of elasticity capable of keeping the chain saw in a horizontal state at the time when the chain saw is in a horizontal state.

Finally, the pivoting portion includes a driving motor; A drive tooth disposed in front of the drive motor in a state where the chain saw is engaged and rotating the cut chain of the chain saw by the drive motor; An electromagnet clutch disposed between the driving motor and the driving tooth and coupling / separating the shaft of the driving motor and the shaft of the driving tooth; And a fixing plate composed of a transverse plate and a connecting plate so that the driving teeth including the driving motor and the electromagnet clutch can be integrated with each other while being coupled to the driving motor.

According to the apparatus for testing a protective glove of a chain saw of the present invention having the above-described structure, a method of automatically pressing a rotating chain of a chain saw with a force of 15 N (newton) There is an excellent effect that the cutting resistance test of the cutting chain with respect to the cutter to be cut can be accurately performed.

1 is a plan view showing a test apparatus according to the present invention,
Fig. 2 is a front view of Fig. 1,
3 to 5 are process charts showing the process of testing the chain saw through the test apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

FIG. 1 is a plan view showing a test apparatus according to the present invention, FIG. 2 is a front view of FIG. 1, and FIGS. 3 to 5 are process drawings showing a process of testing a chain saw through a test apparatus of the present invention.

1 to 5, the test apparatus of the present invention comprises a base 110; The cutting chain 20 of the chain saw 10 is rotated in inertia to drive the chain saw 10 in a state where the chain saw 10 is coupled forward and the cutting chain 20 is placed on the jig 40 A turning part (120) for turning the chain saw (10) to cut the test object (15); The turning chain 120 is provided on one side of the turning unit 120 and rotates to give a turning force to the turning unit 120 so as to cut the test piece 15 with a force of 15 N Means (130); An elastic supporting means 140 installed on the base 110 in a state of being connected to the rotary portion 120 and holding the chain saw 10 in a horizontal state by using elasticity when the rotary portion 120 is rotated; And a control unit 150 for controlling the rotation unit 120 and the rotation imparting unit 130. [

The base 110 has a shape having a predetermined area as shown in Figs. 1 and 2, and a state in which the rotation unit 120, the rotation imparting unit 130, the elastic support unit 140, And the upper flat surface is maintained so that mutual organic bonding and installation can be achieved.

At this time, a rail 30 is provided on the lower side of the base 110 so that the installed devices can move according to the test position and shape of the test object 15.

The base 110 may be provided with a driving device for imparting a driving force to the base 110 so as to ride on the rail 30. The driving device may include a ball bearing 50 connected to the base 110, .

1 and 2, the turning unit 120 engages the chain saw 10 in a forward direction orthogonal to the right direction to drive the combined chain saw 10, The cutting chain 20 of the chain saw 10 is rotated inertially so that the cutting chain 20 rotates the chain saw 10 so as to cut the test piece 15 placed on the jig 40 during the cutting test, A drive tooth 122, an electromagnet clutch 123, and a fixed plate 128. The electromagnetic clutch 121, the drive tooth 122, the electromagnetic clutch 123,

The drive motor 121 is disposed on the rear side of the rotary part 120 as shown in Fig.

The driving tooth 122 is coupled to the cutting chain 20 of the chain saw 10 in a state of being disposed in front of the driving motor 121 and composed of a prime mover coupled to the cutting chain 20 of the chain saw 10, And serves to rotate the cutting chain 20 of the chain saw 10 by the motor 121.

At this time, the chain saw 10 is fixed to the fixing plate 128 by using the fixing member 15 so as to maintain the stable engagement state of the chain saw 10.

The electromagnetic clutch 123 is disposed between the driving motor 121 and the driving teeth 122 and serves to couple and separate the shaft S of the driving motor and the shaft S ' And a clutch housing 125 which is engaged with and disengaged from the clutch main body 124.

That is, the electromagnet clutch 123 rotates the cutting chain 20 at a predetermined speed of 20 m / s for cutting the test object 15 through the coupling of the clutch main body 124 and the clutch housing 125, When the rotational speed of the cutting chain 20 reaches 20 m / s /, the clutch housing 125 is separated from the clutch main body 124 and the shaft of the driving motor S (S) of the driving tooth and the axis (S ') of the driving tooth so that the cutting chain (20) rotates by inertia.

2, the fixing plate 128 is composed of four plates in total including two transverse plates 126 and two connecting plates 127. One of the two transverse plates 126 is connected to the driving motor 121 And two connecting plates 127 are installed on both sides of the electromagnet clutch 123 so as to be connected to the respective transverse plates 126, So that the driving tooth 122 including the driving motor 121 and the electromagnet clutch 123 can be integrally formed.

The swivel unit 120 integrated with the fixed plate 128 is rotated together by a given rotational force.

1 and 2, the turning imparting means 130 is disposed on the left side of the turning portion 120 in the figure, and the chain saw 10 rotating with the turning portion 120 is placed on the jig 40 The first rotating support member 132, the cylinder 133, and the second rotating support member 140 by applying a turning force to the rotating unit 120 so as to cut the rotating member 15 by 15 N (newton) And a two-rotation support base 134.

The rotation block 131 is coupled to the transverse plate 126 disposed on the left side of the rotary unit 120 while maintaining a roughly "T" shape, and has a coupling piece 131a fixed to the transverse plate 126, And a link piece 131b extending from the coupling piece 131a.

The first rotation support base 132 is fixed to the base 110 and is coupled to the lower side of the link piece 131b of the rotation block 131 with a hinge H to support the rotation block 131 in a rotatable manner.

The cylinder 133 is disposed above the link piece 131b of the pivot block 131 and the tip of the rod 133a for retracting the cylinder 133 is positioned above the link piece 131b of the pivot block 131 Hinge (H).

Therefore, the cylinder 133 rotates the pivot block 131 about the hinge H on the lower side of the link piece 131b through the retraction of the rod 133a, The turning unit 120 is rotated.

At this time, the cylinder 133 rotates together with the turning block 120 at a pressure set to apply a pressing force of 15 N (newton) to the chain saw 10 coupled to the turning block 120 together with the turning block 131 15 N (newton) is the force applied to the test object 15 from the chain saw 10 during the cutting test, and is specified in the national standard ISO.

To this end, a pressure generating device (not shown) provided separately from the outside is connected to the cylinder 133 so that a force of 15 N (newtons) can be applied to the chain saw 10, and a control unit 150, So as to provide a predetermined pressure through hydraulic or pneumatic pressure to the inside of the cylinder 133.

In the present embodiment, the pushing force is applied to the chain saw 10 by rotating the turning block 131 and the turning portion 120 through the cylinder 133, but the present invention is not limited thereto as long as the structure can generate force through various structures Do not.

The second rotation supporting member 134 rotatably supports the rear side of the cylinder 133 while being fixed to the base 110 as shown in the figure.

At this time, it is preferable that the cylinder 133 is fitted with a pivoting member which is rotatably coupled to the second pivot support member 134 while covering the cylinder 133 as an auxiliary means for protecting the cylinder 133.

The elastic support means 140 is installed on the base 110 in a state of being connected to the rotary portion 120 as shown in FIG. 2, and the elasticity of the rotary portion 120 is used to rotate the chain saw 10 horizontally .

The elastic supporting means 140 includes a first elastic supporting member 141 fixed to the base 110, a second elastic supporting member 142 fixed to the rotating member 120, a first elastic supporting member 141, And a spring 143 having an elastic modulus capable of maintaining the chain saw 10 in a horizontal state during rotation of the swinging unit 120 while connecting the two elastic supports 142.

That is, the first elastic support base 141 supports the left side of the spring 143 in the state where the first elastic support base 141 is fixed to the base 110 and the second elastic support base 142 supports the left side of the lateral plate 126 of the rotation unit 120, So that the chain saw 10 descending when the rotation of the rotation shaft 120 is rotated through the elasticity of the spring 143 can be maintained in a horizontal state as shown in FIG. 2 So that the weight or pressure applied to the horizontal chain saw 10 becomes zero.

This is to ensure that a force of 15 N (newton) applied to the chain saw 10 through the cylinder 133 when the test object 15 is cut using the chain saw 10 can be accurately applied.

The controller 150 is electrically connected to the test apparatus as shown in FIGS. 1 and 2 to control the rotary unit 120, the rotation imparting unit 130, and other related devices.

Hereinafter, a process of testing the cut-off resistance of the chain saw 10 using the test apparatus of the present invention will be described with reference to the accompanying drawings.

3, the chain saw 10 is first coupled to the driving teeth 122 and fixed to the rotating portion 120, and the chain saw 10 is moved upward as shown in FIG. 3 to cut the test piece 15 Keep the initial state.

In addition, the test object 15 to be cut is prepared on the upper part of the jig 40. At this time, the outer surface 12 of the test object 15 is made of a cloth to be used as a protective member. Inside the EVA styrofoam 13 ).

The control unit 150 is also provided with a control unit 150 for controlling the supply pressure to be supplied to the cylinder 133 of the rotation imparting unit 130 and the engagement / disconnection of the electromagnet clutch 123 of the rotary unit 120, The set value is entered in advance.

When the setting is completed as described above, the driving motor 121 is driven to rotate the rotating speed of the cutting chain 20 of the chain saw 10 to 20 m / s. At this time, the clutch main body 124 of the electromagnetic clutch 123 and the clutch housing 125 are engaged.

In this state, the rod 133a of the cylinder 133, which is externally pressurized by a pressure generating device (not shown), is moved in the direction of the arrow in Fig. 3, whereby the pivot block 131 is moved And is rotated in the rightward direction in the drawing centering on the hinge (H) of the hinge mechanism (132).

As a result, the turning block 131 and the turning unit 120 are also rotated together, so that the chain saw 10 coupled to the turning unit 120 rotates as shown in FIG.

At this time, the spring 143 supports the rotation block 131 through elasticity as the second elastic support 142 moves together with the rotation of the rotation block 131, To a horizontal position.

That is, when the chain saw 10 reaches the horizontal position, the spring 143 supports the chain saw 10 through elasticity so that the weight of the chain saw 10 in the horizontal state becomes zero. This state is immediately before the chain saw 10 is cut off the test piece 15.

At this time, the cutting chain 20 of the chain saw 10 is continuously rotated at a rotating speed of 20 m / s.

The chain saw 10 is turned horizontally and the chain saw 10 is rotated as shown in Fig. 5 while the cutting chain 20 is rotated by inertia by separating the clutch housing 124 from the clutch body 124, ).

The rod 133a of the cylinder 133 is moved in the direction of the arrow in Fig. 5 by the pressure applied from the pressure generating device to the cylinder 133 so that the rotation of the chain 131 is performed for cutting the chain saw 10, And the turning portion 120 is further rotated by the rotation of the turning block 131 so that the chain saw 10 is rotated in the direction of the test object 15.

The pressure supplied from the pressure generating device to the cylinder 133 is a pressure of 15 N (newton) applied to the chain saw 10 for cutting the test object 15 while the cylinder 133 is rotating the rotating part 120 It is the pressure that can give power.

The cutting chain 20 of the chain saw 10 rotates in inertia with the above conditions being satisfied and the cutting chain 20 cuts the test piece 15. When the cutting chain 20 is at a predetermined time (for example, 5 seconds) It is judged that the styrofoam inside the EVA is defective and the cutting chain 20 is stopped when the styrofoam inside the EVA styrofoam is cut within a predetermined time, .

As described above, in the cutting resistance testing apparatus of the present invention, the cutting chain of the chain saw is automatically brought into contact with the protector by a force of 15 N (newtons) using a cylinder. There is an excellent effect that the cutting resistance test of the cutting chain with respect to the cutter to be cut can be accurately performed.

As described above, the apparatus for testing a cutting resistance of a chain saw according to the present invention has been described with reference to the preferred embodiments and the accompanying drawings, but it is to be understood that the technical scope of the invention is not limited thereto.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. There is no doubt that it is within.

12: Sheath 13: EVA styrofoam
15: Test product 10: chain saw
20: Cutting chain 30: Rail
40: Jig 50: Ball bearing
100: Test apparatus 110: Base
120: turning unit 121: driving motor
122: drive tooth 123: electromagnetic clutch
124: clutch main body 125: clutch housing
126: transverse plate 127: connecting plate
128: Fixing plate 130:
131: rotation block 131a:
131b: Link piece 132: First rotation supporting plate
133: cylinder 133a: rod
135: pivots 140: elastic support means
141: first elastic support frame 142: second elastic support frame
143: spring 150:

Claims (5)

A base 110;
The cutting chain 20 of the chain saw 10 is rotated in an inertia to drive the chain saw 10 in a state where the chain saw 10 is coupled forward and the cutting chain 20 is placed on the jig 40 A turning part (120) for turning the chain saw (10) to cut the test object (15);
The turning chain 120 is provided on one side of the turning unit 120 and rotates to give a turning force to the turning unit 120 so as to cut the test piece 15 with a force of 15 N Means (130);
An elastic supporting means 140 installed on the base 110 in a state of being connected to the rotary portion 120 and holding the chain saw 10 in a horizontal state by using elasticity when the rotary portion 120 is rotated; And
And a control unit (150) for controlling the rotation unit (120) and the rotation imparting unit (130)
The elastic support means 140 includes a first elastic support base 141 fixed to the base 110, a second elastic support base 142 fixed to the rotation unit 120, And a spring 143 having an elastic modulus capable of maintaining the chain saw 10 in a horizontal state when the rotary part 120 is rotated while connecting the second elastic support part 142 with the second elastic support part 142, Cutting resistance test equipment for chain saws. The method according to claim 1,
The rotation imparting means (130)
A pivot block (131) coupled to the pivot portion (120);
A first rotation support base 132 fixed to the base 110 and hinged to the lower side of the rotation block 131 to support the rotation block 131 in a rotatable manner;
A rod 133a disposed at the upper side of the pivot block 131 is connected to the upper side of the pivot block 131 by a hinge H so that the cylinder 133 rotates the pivot block 131 ); And
And a second rotation support base (134) rotatably supporting the cylinder (133) while being fixed to the base (110). 3. The method of claim 2,
Wherein the cylinder (133) rotates the rotary part (120) with a pressure set to apply a pressing force of 15 N (newton) to the chain saw (10). delete 4. The method according to any one of claims 1 to 3,
The rotation unit 120 includes:
A driving motor 121;
A drive tooth 122 disposed in front of the drive motor 121 in a state where the chain saw 10 is engaged and rotating the cut chain 20 of the chain saw 10 by the drive motor 121;
An electromagnet clutch 123 disposed between the driving motor 121 and the driving teeth 122 for coupling / separating the axis S of the driving motor with the axis S 'of the driving teeth; And
A driving plate 121 and a driving plate 122 are coupled to the driving motor 121 so that the driving teeth 122 and the electromagnet clutch 123 can be integrated with each other. (128). ≪ / RTI >
KR1020160003705A 2016-01-12 2016-01-12 Testing device for cutting resistor of chain saw KR101649192B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253939A (en) * 2018-10-08 2019-01-22 邹根发 A kind of hacksaw production sharpness detection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2549882B2 (en) * 1988-01-27 1996-10-30 東京エレクトロン株式会社 Inspection equipment
WO1999039128A1 (en) * 1998-01-28 1999-08-05 Dolmar Gmbh Chain fluid pump for a power chain saw and power chain saw comprising such a chain fluid pump
KR20050089448A (en) 2004-03-05 2005-09-08 김정관 Guide of chain saw for portable power devices
KR101040294B1 (en) * 2008-05-14 2011-06-10 경상대학교산학협력단 Pruner with air motor
US20150158202A1 (en) * 2011-02-03 2015-06-11 Husqvarna Ab Wall or floor chainsaw
KR101568102B1 (en) 2015-02-24 2015-11-12 박태호 Chain Saw for Pinch Prevention

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2549882B2 (en) * 1988-01-27 1996-10-30 東京エレクトロン株式会社 Inspection equipment
WO1999039128A1 (en) * 1998-01-28 1999-08-05 Dolmar Gmbh Chain fluid pump for a power chain saw and power chain saw comprising such a chain fluid pump
KR20050089448A (en) 2004-03-05 2005-09-08 김정관 Guide of chain saw for portable power devices
KR101040294B1 (en) * 2008-05-14 2011-06-10 경상대학교산학협력단 Pruner with air motor
US20150158202A1 (en) * 2011-02-03 2015-06-11 Husqvarna Ab Wall or floor chainsaw
KR101568102B1 (en) 2015-02-24 2015-11-12 박태호 Chain Saw for Pinch Prevention

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253939A (en) * 2018-10-08 2019-01-22 邹根发 A kind of hacksaw production sharpness detection device
CN109253939B (en) * 2018-10-08 2020-12-08 嘉兴管通机电科技有限公司 Sharpness detection device is used in hacksaw production

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