KR102252371B1 - Chain saw for improved portability - Google Patents

Abstract

The present invention relates to a chainsaw with an improved portability, which comprises: a handle body having a grip unit; a guide plate mounted on a front side of the handle body; an endless chain sawtooth placed in a shape of covering along the circumference of the guide plate; a driving means built in the handle body to transfer rotary force to the chain sawtooth; and a power supply means which supplies power to the driving means. The power supply means includes: an entrance/exit space unit formed on a rear side of the handle body to be opened upward; a terminal unit placed in the space unit to be electrically connected to the driving means; a lithium ion battery inserted into the space unit to have a connector accessed to the terminal unit; and a socket placed on an outer wall on a rear side of the space unit in the handle body to be electrically connected to the driving means and the terminal unit and to be accessed to a plug for connecting an outside power supply. The present invention is able to receive power by using a detachable battery, to increase work efficiency as well as portability, to operate by receiving power from an additional battery pack or the like in accordance with the work environment, and to charge a battery at the same time.

Description

Chain saw with improved portability{CHAIN SAW FOR IMPROVED PORTABILITY}

The present invention relates to a chain saw having improved portability so that an operator can select and use a wired or wireless method according to necessity, as the battery can be charged while receiving power by using a removable battery or by connecting an external power plug to receive external power. to be.

In general, a chain saw is a tool widely used for wood processing, battery work, and log cutting. That is, it is a tool widely used for cutting firewood, cutting trees for mushroom cultivation, pruning fruit trees, cutting old trees, and trimming the rough surface of pillars. Such chain saws include an engine chain saw with an engine powered by gasoline and an electric chain saw with a motor powered by electricity.

At this time, as the technology for the electric chain saw,

Republic of Korea Patent Publication No. 10-2009-0040547 (published on April 27, 2009, hereinafter referred to as'document 1') 『Portable Rechargeable Electric Saw』 is proposed.

Document 1 has a motor driven by DC power, and a chain sprocket wheel is installed on the output shaft of the motor, and the chain saw blade is driven in a caterpillar manner along a track element on the wheel, and a rechargeable electric saw having a handle. Moment of inertia acts on the output shaft to absorb kinetic energy. It is a technology related to a portable cordless electric saw that has a flywheel that holds and uses the energy to withstand the maximum load, and increases the kinetic energy of the motor by using inertia to improve the output and increase the cutting efficiency.

As another technology, Korean Patent Laid-Open No. 10-2010-0058261 (published on Jun. 03, 2010, hereinafter referred to as'Document 2') 『Chain Top』 is proposed.

Document 2 relates to a chain saw that rotates a saw blade chain installed in an outer circumferential groove of a chain guide plate by an engine or a motor, and a chain saw blade chain installed in the outer circumferential groove is fitted and rotated by a saw blade chain when the saw blade chain is rotated It is installed rotatably on the guide plate. Accordingly, it is a technology related to a chain saw that can reduce the manufacturing cost of a chain saw by not using an oil tank and chain oil, and also improve operator convenience since there is no need to check the chain oil when using it.

As another technology, Korean Patent Publication No. 10-2010-0116587 (published on November 1, 2010, hereinafter referred to as'document 3') 『Portable Electric Chain Saw』 is proposed.

Document 3 is a portable chain saw driven by a motor of a type comprising a power source housed in a housing and a cutting device having a toothed chain and a guide bar, the power source being electronically controlled and having a rotor having a magnet. It is a switchable brushless direct current electric motor, wherein the handle for gripping and operating the saw is a technology related to a portable chain saw that supports a guide bar and is located under a motor assembly comprising the direct current electric motor.

Document 1. Korean Patent Publication No. 10-2009-0040547 (published on April 27, 2009) Document 2. Korean Patent Publication No. 10-2010-0058261 (published on June 3, 2010) Document 3. Korean Patent Publication No. 10-2010-0116587 (published on November 1, 2010)

An object of the present invention is to provide a chain saw with improved portability, which allows an operator to select and use a more convenient method in consideration of a work environment and the like, since both a wired and wireless method is used.

Furthermore, the present invention facilitates the cutting operation by collecting scattered dust or debris generated during the cutting operation and discharging it to the rear side of the operator, and also facilitates the collection of scattered dust and debris. Its purpose is to provide a chain saw with improved portability so as to improve the working environment.

In addition, the present invention allows the plate material to be pressed and fixed during cutting of the plate material to be cut, thereby preventing the plate material from moving upward during the cutting process, thus enabling more precise cutting and portability that can contribute to preventing safety accidents. Its purpose is to provide an improved chain saw.

In order to solve the above problems, the chain saw with improved portability according to the present invention,

A handle body having a grip portion;

A guide plate mounted on the front side of the handle body;

An endless chain saw blade disposed in a form wound along the circumference of the guide plate;

A driving means built into the handle body and transmitting rotational power to the chain saw blade; And

Power supply means for supplying power to the driving means;

Including,

The power supply means includes an entry/exit space portion formed to be opened upward on the rear side of the handle body, a terminal portion provided in the space portion and electrically connected to the driving means, and the terminal portion inserted into the space portion. And a lithium-ion battery having a connector connected to the handle body, and a socket provided on an outer wall of the rear side of the space part of the handle body, electrically connected to the driving means and the terminal part, and to which a plug for external power connection is connected .

The chain saw with improved portability according to the present invention,

Since power can be supplied by using a removable battery, portability as well as work efficiency can be improved, and portability is improved by allowing the battery to be charged while operating by receiving power from a separate battery pack depending on the work environment. It has the greatest effect of providing a chain saw that can be used both wired and wirelessly.

1 is a three-dimensional configuration diagram showing a chain saw with improved portability according to the present invention,
Figure 2 is a side configuration view of Figure 1,
3 and 4 are partial side configuration diagrams for showing the power supply means,
Figure 5 is a partial cross-sectional configuration diagram for showing the driving means,
Figure 6 is a partial cross-sectional configuration diagram for showing the collecting and discharging means,
7 is a partial side and three-dimensional configuration diagram for showing the push means,
8 is a plan configuration diagram of FIG. 7;
9 is a partial plan view of a cross-sectional view for showing that a protrusion and a protrusion insertion groove, and an insertion hole and a corresponding insertion hole are further provided in the push means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of the present application It should be understood that there may be water and variations.

Referring to Fig. 1, the direction of the handle body side is specified as rear or rear, and the chain saw blade side is all or front.

1 to 9, the chain saw with improved portability according to the present invention,

It is largely composed of a handle body 10, a guide plate 20, a chain saw blade 30, a driving means 40, and a power supply means 50.

Looking at each configuration,

The handle body 10 is

1 to 3,

It has a grip part 11 so that it can be held by hand during cutting and is made of a hexagonal housing structure when viewed from the side.

At this time, as shown in Figs. 1 and 2, the grip part 11 is disposed on the upper end of the handle body 10 and is disposed on the left side of the top grip 111 and the handle body 10 gripped by the right hand. It may be made of a side grip 112 to grip.

In addition, the handle body 10 may be further provided with a hook portion, etc., which can be connected to a strap to be worn on the shoulder.

The guide plate 20 is

1 and 2,

It is mounted on the front side of the handle body 10, and is disposed on the inner track of the chain saw blade 30 to guide the rotational operation of the chain saw blade 30,

It consists of a plate-like structure that is long and erected approximately back and forth.

The chain saw blade 30 is

1 to 3,

It consists of an endless chain 31 disposed in a form wound along the circumference of the guide plate 20 and a plurality of saw blades 32 mounted thereto.

The driving means 40 is

5 and 6,

It is built into the handle body 10 and is for transmitting rotational power to the chain saw blade 30,

A drive motor 41 having a drive shaft 411,

A first bevel gear 42 axially coupled to the drive shaft 411 of the drive motor 41,

Driven and driven sprockets 43 and 44 that are rotatably coupled to the front and rear ends of the guide plate 20 and mesh with the chain 31 forming the chain saw blade 30,

A second bevel gear 45 coupled to the shaft of the driving sprocket 44 and intersecting with the first bevel gear 42, and

A support 46 having a bearing to support the axis of the second bevel gear 45

It is made including.

Eventually, as the drive shaft 411 is rotated by the drive motor 41 supplied with power from the power supply means 50, the drive sprocket 44 is rotated, and the cutting object is removed using the chain saw blade 30. It can be cut.

The power supply means 50 is

3 and 4,

To supply power to the driving means 40,

An entry/exit space portion 51 formed to be opened upward on the rear side of the handle body 10,

A terminal portion 52 provided in the space portion 51 and electrically connected to the driving means 40,

A lithium ion battery 53 inserted into the space 51 and having a connector 531 connected to the terminal 52, and

A socket provided on the outer wall of the rear side of the space part 51 in the handle body 10, electrically connected to the driving means 40 and the terminal part 52, and to which an external power connection plug 1 is connected ( 54)

It is made including.

At this time, the space part 51 is preferably made of an internal space structure corresponding to the outer shape of the battery 53 so that the battery 53 can be inserted and detached, and in particular, an elastic piece provided in the battery 53 ( It is preferable that a locking portion 511 having a groove structure that is seated when 532 is pressed when inserted and then is returned to its original position is further formed.

In addition, the battery 53 is a rechargeable secondary battery, and is preferably a lithium ion battery.

In addition, the socket 54 is a three-prong socket, and a thread may be further formed on the outer circumferential surface so that the coupler provided in the plug 1 can be fastened while the plug 1 is connected, and connected to the plug 1 The external power source may be a separate battery pack worn on the shoulder.

And the power supply means 50 is further provided with a cover 55 hinged to the upper end of the space part 51 to open and close the entrance of the space part 51, so that the space part after replacing the battery 53 Block (51) can prevent the inflow of foreign substances.

Therefore, when the battery 53 is inserted into the space 51 and the terminal 52 and the connector 531 are interconnected, when the plug 1 is connected to the socket 54, the battery 53 is In addition, external power connected to the plug 1 is supplied to the driving motor 41, and when the plug 1 is not connected to the socket 54, the power of the battery 53 is driven. It is supplied to the motor 41.

On the other hand, the chain saw with improved portability according to the present invention further includes a collecting and discharging means 60 and a push means 70,

The collecting and discharging means 60

As shown in Figure 6,

It is provided on the side of the handle body 10 and is for collecting fragments of the object to be cut that are scattered when the chain saw blade 30 rotates and discharged to the rear side of the handle body 10,

A housing 61 integrally coupled to the side of the handle body 10 and having an inner receiving portion 611 and a front inlet 612 and a rear outlet 613 communicating thereto,

An interlocking shaft 62 having one end axially coupled to the drive sprocket 44 and the other end disposed in the receiving portion 611 of the housing 61,

A turbine-type impeller 63 axially coupled to the end of the interlocking shaft 62, and

A mesh-type enclosure 64 that surrounds the impeller 63 and is fixed to the inner wall of the receiving portion 611 of the housing 61

It is made including.

At this time, the enclosure 64 is made of a mesh material having a fine hole, and when the impeller 63 rotates, it absorbs external air and debris of the object to be cut, but prevents the sucked debris from entering the impeller 63 side. do. In addition, a separate opening and closing door may be provided in the housing 61 so that the enclosure 64 can be detached when the opening and closing door is opened, so that the enclosure 64 can be replaced or cleaned.

Therefore, when the driving sprocket 44 rotates, the impeller 63 linked thereto rotates and sucks the fragments of the object to be cut through the inlet 612 of the housing 61 to the outlet 613 of the housing 61, that is, By discharging it to the rear side of the worker, it is possible to make the cutting work as well as the debris collection work more easily, and further, a separate collection net (not shown) is coupled to the outlet 613 of the housing 61 to collect debris. It can be implemented so that it can be collected immediately. At this time, it is preferable that the collection net has a mesh-type network structure to allow the exhaust of air.

The push means 70 is

7 to 9,

To limit the upward movement of the cutting object when cutting the plate-shaped cutting object by the chain saw blade 30,

A pair of square recesses 71 formed to be recessed on both sides of the guide plate 20,

A magnetic material 72 embedded in the region between the respective recesses 71 in the guide plate 20,

A pair of supports 73 that are inserted into each of the recesses 71 and fixed by magnetism with the magnetic body 72 and made of a metal material, and

A pair of rollers 74 disposed to be spaced apart from the lower side of the chain saw blade 30 while being rotatably coupled to the end of each support 73

It is made including.

At this time, each of the recesses 71 has a rectangular groove structure, and each of the supports 73 has a rectangular cross-sectional structure corresponding to the shape of each of the recesses 71, so that the support 73 is rotated. It prevents movement so that it can be fixed more firmly.

In addition, as shown in FIG. 9, a protrusion 731 and a protrusion insertion groove 732 are formed at ends facing each other in each of the support bodies 73, and the protrusions pass through each of the recesses 71. An insertion hole 711 is formed, and a corresponding insertion hole 721 through which the protrusion passes is formed in the magnetic body 72, so that the roller 74 presses the upper surface of the object to be cut during the cutting operation. Since the support 73 can be prevented from being rotated upward, it is possible to press the cutting object with a larger force.

In addition, as shown in FIGS. 7 and 8, a plurality of the recesses 71 are disposed at a predetermined interval along the front and rear longitudinal direction of the guide plate 20, so that the thickness, size, and cutting depth of the object to be cut can be determined. In consideration, the support 73 may be mounted in one or two or more of the recesses 71.

Therefore, it is possible to cut through the chain saw blade 30 while directly pressing and fixing using the push means 70 without a separate plate fixing device when cutting a flat plate placed on the table among the objects to be cut.

In the above description of the present invention, a "chain saw with improved portability" having a specific shape and structure has been mainly described with reference to the accompanying drawings, but the present invention can be variously modified and changed by those skilled in the art, and such modifications and changes are It should be construed as belonging to the protection scope of the present invention.

10: handle body
11: grip part
111: Top grip
112: side grip
20: guide plate
30: chain saw blade
31: chain
32: saw blade
40: drive means
41: drive motor
411: drive shaft
42: first bevel gear
43: driven sprocket
44: drive sprocket
45: second bevel gear
46: support
50: power supply means
51: space part
511: locking part
52: terminal part
53: battery
531: connector
532: elastic piece
54: socket
55: cover
60: collection and discharge means
61: housing
611: receiving part
612: entrance
613: exit
62: interlocking shaft
63: impeller
64: enclosure
70: push means
71: recess
711: insertion hole
72: magnetic body
721: corresponding insertion hole
73: support
731: protrusion
732: Protrusion insertion groove
74: roller

Claims (7)

A handle body 10 having a grip part 11;
A guide plate 20 mounted on the front side of the handle body 10;
An endless chain saw blade 30 disposed in a form wound along the circumference of the guide plate 20;
A driving means (40) built into the handle body (10) and transmitting rotational power to the chain saw blade (30); And
A power supply means (50) for supplying power to the drive means (40);
Including,
The power supply means 50 includes an entry/exit space portion 51 formed to be opened upward on the rear side of the handle body 10, and is provided in the space portion 51 to provide the driving means 40 and A lithium ion battery 53 having an electrically connected terminal portion 52 and a connector 531 inserted into the space portion 51 and connected to the terminal portion 52, and the space in the handle body 10 It is provided on the outer wall of the rear side of the part 51, is electrically connected to the driving means 40 and the terminal part 52, and consists of a socket 54 to which an external power connection plug 1 is connected,
When the battery 53 is inserted into the space 51 and the terminal 52 and the connector 531 are interconnected, the battery 53 is charged when the plug 1 is connected to the socket 54 Become,
The power supply means 50 is further provided with a cover 55 hinged to the upper end of the space 51 to open and close the entrance of the space 51,
The driving means 40 includes a driving motor 41 having a driving shaft 411, a first bevel gear 42 axially coupled to the driving shaft 411 of the driving motor 41, and the guide plate 20 The driven and driving sprockets 43 and 44 are rotatably coupled to each of the front and rear ends of the chain saw blade 30 and meshed with the chain 31, and are coupled to the shaft of the driving sprocket 44, and 1 consists of a second bevel gear 45 intersecting with the bevel gear 42 and a support 46 supporting the axis of the second bevel gear 45,
A collecting and discharging means (60) provided on the side of the handle body (10) and collecting and discharging the fragments of the object to be cut scattered when the chain saw blade (30) rotates is further provided. Chain saw with improved portability, characterized in that it comprises.
delete delete The method of claim 1,
The collecting and discharging means 60
A housing 61 integrally coupled to the side of the handle body 10 and having an inner receiving portion 611 and a front inlet 612 and a rear outlet 613 communicating thereto,
An interlocking shaft 62 having one end axially coupled to the drive sprocket 44 and the other end disposed in the receiving portion 611 of the housing 61,
A turbine-type impeller 63 axially coupled to the end of the interlocking shaft 62,
A mesh-type enclosure 64 that surrounds the impeller 63 and is fixed to the inner wall of the receiving portion 611 of the housing 61
When the driving sprocket 44 rotates, the impeller 63 interlocked with it rotates and sucks the fragments of the object to be cut through the inlet 612 of the housing 61 to the outlet 613 of the housing 61. Chain saw with improved portability, characterized in that discharge.
The method according to claim 1 or 4,
A pair of square recesses 71 formed to be recessed on both sides of the guide plate 20,
A magnetic material 72 embedded in a region between the respective recesses 71 in the guide plate 20,
A pair of supports 73 that are inserted into each of the recesses 71 and fixed by magnetism with the magnetic body 72 and made of metal,
A pair of rollers 74 disposed to be spaced apart from the lower side of the chain saw blade 30 while being rotatably coupled to the end of each support 73
By further comprising a push means (70) made of, the chain saw blade (30) when cutting the plate-shaped cutting object to limit the upward movement of the cutting object, characterized in that the improved portability chain saw.
The method of claim 5,
Each of the recesses 71 has a rectangular groove structure,
Each of the supports 73 has a rectangular cross-sectional structure corresponding to the shape of each of the recesses 71,
A protrusion 731 and a protrusion insertion groove 732 are formed at ends facing each other in each of the supports 73,
An insertion hole 711 through which the protrusion passes is formed in each of the recesses 71,
A chain saw with improved portability, characterized in that a corresponding insertion hole (721) through which the protrusion passes is formed in the magnetic body (72).
The method of claim 6,
Each of the recesses 71 is a chain saw having improved portability, characterized in that a plurality of the recesses 71 are disposed at a predetermined interval along the front and rear longitudinal direction of the guide plate 20.

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