JP2010173092A - Portable router - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable router which operates a housing smoothly and can remove a cutting blade appropriately. <P>SOLUTION: The portable router 1 has a base part 2 mounted on a workpiece, a column 3 extended from the base part 2 to the side of an anti-workpiece, the housing 4 which is attached to the column 3 and approaches/is separated from the workpiece along the column 3, and a motor 5 which is set in the housing 4, is extended toward the workpiece in parallel with the column 3, and has a rotary shaft part 5A fitted with the cutting blade 7. A fan 5B which rotates coaxially and integrally with the rotary shaft part 5A is attached to the base end of the rotary shaft part 5A. In the housing 4, a fan chamber 6a in which the fan 5B is held is formed, and a fan wind discharge mechanism which leads a fan wind generated by the fan 5B from the fan chamber 6a to the column 3 is installed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable router, and more particularly to a portable router from which chips generated during cutting are removed.

  Generally, in a portable router, a base portion placed on the surface of a material such as wood for cutting a groove, a pair of columns that stand up from the base portion, and a cutting blade supported by the pair of columns so as to be movable up and down. And a housing having a motor. In this portable router, when cutting a material, the cutting blade is arranged at a position in contact with the material by moving the housing downward along the column. Since the motor is provided with a cooling fan, the fan air generated from the fan is discharged from the housing toward the material, and the cutting scraps on the material surface are blown away.

  In the portable router configured as described above, in order to set an accurate cutting depth, it is important that the housing moves up and down smoothly with respect to the base portion. However, in the conventional portable router, chips blown off by the fan wind may enter between the housing and the column, thereby hindering the smooth vertical movement of the housing. In order to prevent this, the applicants have proposed a portable router in which a bellows is mounted on a column as disclosed in Patent Document 1.

JP 2001-121504 A

  By attaching the bellows, it is possible to prevent cutting dust from adhering to the column. However, since the bellows is expensive, it is preferable not to use it if possible. In addition, although cutting waste is blown away by the fan air discharged from the housing, there is a distance from the housing (fan) to the surface of the material from which the cutting waste is discharged. It was. Accordingly, an object of the present invention is to provide a portable router capable of smoothly removing a cutting blade while allowing a housing to operate smoothly.

  In order to solve the above-described problems, the present invention provides a base portion placed on a processing member, a column extending from the base portion to the side opposite to the processing member, and approaching and separating from the processing member along the column. A housing, and a motor having a rotating shaft portion provided in the housing and extending in parallel with the column toward the processing member and to which a cutting blade is mounted, and at a base end of the rotating shaft portion Provided is a portable router provided with a fan that rotates coaxially with the rotating shaft, and having a fan air discharge mechanism that guides the fan air generated by the fan from at least the housing side to the column side. .

  According to such a configuration, since the fan wind hits the column, it is possible to prevent the cutting waste from adhering to the column. Therefore, it is suppressed that the cutting waste enters between the housing and the column.

  In the portable router configured as described above, it is preferable that the fan air discharge mechanism guides the fan air to the base portion side along the column.

  According to such a configuration, since the fan air can be guided to the base portion side along the column, it is possible to more suitably prevent the cutting waste from adhering to the column.

  The fan air discharge mechanism preferably includes a fan air introduction hole that guides the fan air to the column. According to such a configuration, since the fan air can be suitably applied to the column via the fan air introduction hole, it is possible to more appropriately suppress the cutting dust from adhering to the column.

  The fan is a centrifugal fan, and it is preferable that the fan wind introduction hole is located on the extension of the fan in the centrifugal direction. According to such a configuration, since the fan wind introduction hole is provided on the extension of the fan in the centrifugal direction, the fan wind is reliably introduced into the fan wind introduction hole.

  The fan air discharge mechanism has a guide portion that is disposed at an outer peripheral position of the column and forms an air supply passage between the column and the air supply passage. It is preferable that the other end side of the communication opens toward the base portion.

  According to such a configuration, since the fan wind is guided by the air supply passage and discharged to the base portion side, it is suppressed that cutting waste generated from the processing member located on the base portion side is blown off to the column side, It can suppress more suitably that cutting waste adheres to a column.

  Moreover, it is preferable that this guide part is provided so that this air supply path may cover the outer periphery of this column. According to such a configuration, since the fan wind is guided to the outer periphery of the column, it is possible to reliably prevent the cutting waste from entering the air supply passage.

  The housing has a sliding surface that abuts on the column and slides against the column, and the air supply passage is formed on the side opposite to the fan air introduction hole and the other end It is preferable that the side is open to the base part side.

  According to such a configuration, the fan wind that has entered from the fan wind introduction hole is sent to the base side without being sent to the sliding surface side, so the fan wind can be guided to the base side without waste. It is possible to suppress the adhesion of cutting waste to the column more suitably.

  In order to solve the above problems, a base portion placed on the processing member, a column extending from the base portion to the side opposite to the processing member, and a housing that approaches and separates the processing member along the column, A rotating shaft provided in the housing and extending in parallel to the column toward the processing member, and a fan that rotates coaxially with the rotating shaft at the base end of the rotating shaft. And a motor provided with a cutting blade for cutting a workpiece by rotating coaxially and integrally with the rotating shaft at the tip of the rotating shaft, and one end mounted on the housing, and the fan wind generated by the fan is cut There is provided a portable router provided with a guide portion in which an air supply passage leading to the vicinity of a blade is formed.

  According to such a configuration, since the fan wind can be guided to the cutting blade, the fan wind can be efficiently blown onto the cutting blade. Therefore, cutting waste can be efficiently blown away and workability can be improved.

  In the portable router configured as described above, it is preferable that the other end of the guide portion is disposed on the base portion side, and the fan air is discharged from the other end to the vicinity of the cutting blade.

  According to such a configuration, fan air can be discharged toward the cutting blade at the base portion position. Therefore, by discharging the fan wind at the base portion position, the fan wind can be efficiently blown to the cutting blade to remove the cutting waste.

  It is preferable that the guide portion is configured to be extendable / contractable according to the proximity of the housing to the base portion.

  According to such a configuration, the fan air can be reliably supplied to the vicinity of the cutting blade regardless of the position of the housing relative to the base portion.

  Preferably, the guide portion covers the outer periphery of the column and is disposed between the housing and the base portion, and the air supply passage is formed between the guide portion and the column.

  According to such a configuration, it is possible to define an air supply passage between the column and the guide portion while covering the column with the guide portion. Therefore, it is possible to prevent the cutting waste from adhering to the column while reliably removing the cutting waste, and to slide the housing along the column, thereby improving the operability.

  The base portion has an opening through which the cutting blade can protrude from the bottom surface of the base portion in response to a sliding movement along the column of the housing, and the opening and the air supply passage are communicated with each other. It is preferable to have a base fan wind guide portion for guiding the fan wind to the cutting blade located in the vicinity of the opening.

  Moreover, the base fan wind guide part may be comprised including the notch which is formed in this base part and connects the opening part and this air supply path. The base fan guide portion may include a through-hole formed in the base portion and communicating the opening and the air supply passage. In addition, an exhaust hole may be formed in the guide portion at a position near the base portion and toward the cutting blade.

  According to such a structure, the fan wind discharged from a guide part can be suitably guide | induced to the cutting blade vicinity which is cutting the process member. Therefore, it is possible to blow off the cutting waste more suitably and remove it, and workability can be improved.

  The housing preferably includes a fan chamber in which the fan is accommodated, and a fan air discharge mechanism that guides the fan air generated by the fan from the fan chamber to the column side.

  According to such a configuration, since the fan wind hits the column, it is possible to prevent the cutting waste from adhering to the column. Therefore, it is possible to prevent cutting waste from entering between the housing and the column, and the housing can slide suitably along the column.

  According to the portable router of the present invention, since the cutting waste can be suitably removed, the housing can be operated smoothly.

The front view of the portable router concerning 1st embodiment of this invention. Detailed view showing the vicinity of the fan chamber of the portable router according to the first embodiment of the present invention. Sectional drawing along the III-III line of FIG. The front view of the portable router concerning 2nd embodiment of this invention. Sectional drawing which shows the connection location of the base part and column of the portable router concerning 2nd embodiment of this invention. Sectional drawing which shows the connection location of the base part and column concerning the 1st modification of the portable router concerning 2nd embodiment of this invention. Sectional drawing which shows the connection location of the base part and column concerning the 2nd modification of the portable router concerning 2nd embodiment of this invention.

  Hereinafter, the portable router according to the first embodiment of the present invention will be described with reference to FIGS. A portable router 1 shown in FIG. 1 mainly includes a base portion 2, a column 3, and a housing 4. The base portion 2 is configured in a substantially flat plate shape, and an abutting surface 2A that abuts and slides on the wood W as a processing member is defined on the bottom surface. In addition, an opening 2 a that opens to the abutting surface 2 </ b> A and through which a cutting blade 7 described later passes and contacts the wood W is formed at a substantially central portion of the base portion 2.

  The columns 3 are disposed on the upper surface of the base portion 2 on the side opposite to the timber W (on the side opposite to the contact surface 2A) and extend upward, and a pair of columns 3 are mounted with the opening 2a interposed therebetween. Since the pair of columns 3 and 3 have the same shape, one of them will be mainly described. The column 3 has a pipe shape with a substantially circular cross section, and a spring 3A for biasing an end bracket 6 (to be described later) toward the anti-wood W side is disposed inside the pipe shape.

  The housing 4 is mainly composed of a body portion 4A and an end bracket 6. A motor 5 is built in the body portion 4A. The motor 5 has a rotating shaft portion 5A, and the inside of the body portion 4A so that the axial direction of the rotating shaft portion 5A is parallel to the extending direction of the column 3 and the rotating shaft portion 5A extends toward the wood W side. Is arranged. The rotating shaft portion 5A is disposed in the housing 4 (body portion 4A) so that the opening 2a, particularly the center of the opening 2a, is located on the extended line on the wood W side. Further, in the rotary shaft portion 5A, a cutting blade 7 for cutting the wood W is provided at the distal end portion so as to rotate coaxially and a fan 5B for cooling the motor 5 is provided at the proximal end portion so as to rotate coaxially. ing.

  The end bracket 6 is disposed below the body portion 4A, and is held by the operator, a fan chamber defining portion 6A, a mounting portion 61 that is slidably mounted on the column 3 so as to be slidable on the wood W side and the anti-wood W side. Holding part 6B. In the fan chamber defining portion 6A, a fan chamber 6a containing the fan 5B is defined, and a wind window 6b for discharging a part of the fan wind generated by the fan 5B toward the base portion 2 is formed. Yes. A pair of gripping portions 6 </ b> B are arranged at positions close to the columns 3 and 3 so as to protrude from the side surface of the end bracket 6.

  A pair of mounting portions 61 are provided so as to correspond to the respective columns 3 and 3, and each has the same shape. Therefore, one mounting portion 61 will be described. As shown in FIG. 2, the mounting portion 61 is configured in a substantially cylindrical shape in which a hole through which the column 3 passes is formed, and a sliding surface that contacts and slides on the column 3 in the substantially cylindrical portion. 61A and a guide part 61B extending from the sliding part 61A toward the base part 2 side, and constitutes a fan wind discharge mechanism. The fan air discharge mechanism includes a mechanism for discharging fan air from the fan 5B to the column 3 side, such as the fan chamber defining section 6A and the wind window 6b.

  The guide portion 61B is disposed so as to cover the outer periphery of the column 3 in a state where the second air supply passage 61c, the fan air introduction hole 61a, and the first air supply passage 61b are formed. The second air supply passage 61c is a gap formed over the entire outer periphery of the column 3 between the column 3 and the guide portion 61B, and faces the base portion 2 at the base portion 2 side end of the guide portion 61B. Open. The fan air introduction hole 61a is formed at a position facing the fan chamber 6a of the guide portion 61B, and the first air supply passage 61b is formed as a through hole that connects the fan air introduction hole 61a and the second air supply passage 61c. The fan air in the fan chamber 6a is guided to the second air supply passage 61c. Accordingly, since the fan air flows in the second air supply passage 61c, it is possible to suppress dust such as cutting dust from adhering to the column 3 which is the inner surface of the second air supply passage 61c. Further, the fan air introduction hole 61a and the first air supply passage 61b have a cross-sectional area larger than that of the second air supply passage 61c shown in FIG. Therefore, the fan wind generated by the fan 5B in the fan chamber 6a is faster in the second air supply passage 61c than the flow velocity in the first air supply passage 61b. The second air supply passage 61c opens toward the base portion 2 as described above.

  The fan 5B is preferably a centrifugal fan. By providing the fan wind introduction hole 61a outside the fan 5B in the centrifugal direction (radial direction), the fan wind can be smoothly passed through the fan wind introduction hole 61a. 61b, 61c. Further, the second air supply passage 61c is not formed over the entire outer periphery of the column 3 between the column 3 and the guide portion 61B, and is opened from the first air supply passage 61b to the base portion 2 side. One hole or a plurality of holes formed at a predetermined interval may be used, but it is conceivable that cutting waste adheres to a portion where no hole is formed. Therefore, the formation of the second air supply passage 61c on the entire circumference can surely suppress the attachment of cutting waste to the column 3 and also suppress the entry of cutting waste to the housing side through the air supply passage. Is the most effective.

  A fan wind introduction hole 61a and first and second air supply passages 61b and 61c are formed on the base portion 2 side with respect to the sliding portion 61A. With such a configuration, when the fan wind from the fan 5B is introduced into the first air supply passage 61b from the fan air introduction hole 61a, sliding is performed above the first air supply passage 61b (on the side opposite to the base portion 2). Since the portion 61A is in contact with the column 3, most of the fan air is guided to the second air supply passage 61c. Therefore, the fan wind that has flowed into the fan wind introduction hole 61a can be used efficiently, and adhesion of cutting waste to the column 3 can be suppressed. The sliding portion 61A may be provided below the fan wind introduction hole 61a (on the base portion 2 side). In this case, the air supply for the fan wind to pass through a portion other than the contact surface of the sliding portion 61A. A hole or the like may be provided. However, in this case, since the fan wind also flows to the anti-base portion 2 side, it can be considered that the fan wind cannot be used effectively. Therefore, the configuration in which the fan draft introduction hole 61a is provided closer to the base portion 2 than the sliding portion 61A is most effective in preventing the cutting waste from adhering to the column 3.

  Since the housing 4 including the end bracket 6 moves closer to the base portion 2 when the user pushes down the grip portion 6B, the sliding portion 61A defines the second air supply passage 61c of the column 3. Slide on the surface. In the conventional portable router, cutting waste may enter between the sliding portion and the column and prevent the housing from moving smoothly. In the present embodiment, the fan is provided in the second air supply passage 61c. Since the wind flows at a high flow rate and is discharged toward the base portion 2 side, which is a generation source of cutting waste, the cutting waste is prevented from flowing into the second air supply passage 61c. Therefore, it is suppressed that cutting waste adheres to the column 3, and it is suppressed that cutting waste enters between the sliding part 61A and the column 3, and the housing 4 can be moved smoothly.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Since the portable router 101 shown in FIG. 4 is the same as that of the first embodiment except for the base unit 102 and the bellows 108, the reference numeral of the portable router 1 according to the first embodiment is used. The description is omitted by adding 100.

  Between the base part 102 and the guide part 161B, the bellows 108 which is a guide part which guides a fan wind to the base part 102 side is arrange | positioned. The bellows 108 is substantially cylindrical and has a bellows shape that can be expanded and contracted in conjunction with the vertical movement of the housing 104. The bellows 108 covers the outer periphery of the column 103, and one end is attached to the outer periphery of the guide portion 161B. The end is attached to the base portion 102. The bellows 108 covers the outer periphery of the column 103 so as to form an air supply passage through which fan air flows. Therefore, the fan air discharged from the second air supply passage 161c of the guide portion 161B flows into the bellows 108.

  As shown in FIG. 5, the base portion 102 is formed with a through hole 102 b penetrating from the position near the column 103 and inside the bellows 108 to the sliding surface 102 </ b> A. In addition, a groove 102c that connects the opening 102a and the through hole 102b is formed in the sliding surface 102A.

  By adopting such a configuration, the fan air flowing into the bellows 108 is ejected into the opening 102a through the through hole 102b and the groove 102c. Since the cutting blade 107 (FIG. 4) cuts the wood W in the opening 102a, the fan wind blows efficiently on the cutting blade 7 and the cutting location by blowing out the fan wind into the opening 102a during cutting, and the cutting waste. Can be removed from the position of the base portion 102. Therefore, it is possible to prevent the cutting portion from becoming difficult to see due to cutting waste during cutting, and workability can be improved.

  In the second embodiment, since the column 103 is covered with the bellows 108, it is possible to prevent cutting waste from adhering to the column 103. Even if the cutting waste flows into the bellows 108, an air supply passage is formed in the bellows 108 as in the first embodiment, so that the cutting waste is discharged from the bellows 108 and enters the column 103. Adhesion is suppressed. Therefore, in the second embodiment as well, it is possible to suppress cutting chips from entering between the column 103 and the sliding portion 161A, and it is possible to suitably move the housing 104 so as to approach and separate from the base portion 102. .

  The portable router according to the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made within the scope described in the claims. For example, as illustrated in FIG. 6, as a first modification, a notch groove 202 c that communicates with the inside of the bellows 208 and communicates with the opening 202 a may be formed on the upper surface of the base portion 202. As shown in FIG. 7, as a second modification, the exhaust hole 308a may be formed by cutting out a part of the bellows 308 in the vicinity of the base portion 302 on the opening 302a side. Also by these structures, the cutting waste in an opening can be suitably blown off and removed as in the second embodiment. As a modification of FIG. 5, the through hole 102 b is not penetrated to the sliding surface 102 A of the base portion 102, and is formed as a hole 102 b extending to the middle of the base portion 102 (between the upper surface of the base portion and the sliding surface). A similar effect can be obtained by providing a through hole that communicates the exhaust hole that opens to the opening 102a.

  Further, the bellows as in the second embodiment is provided so as to cover a part or all of the wind window without providing the guide portion in which the air supply passage is formed in the mounting portion as in the first embodiment. May be. In this case, almost all of the fan wind is introduced into the bellows. Therefore, by adopting the structure of the base as shown in FIGS. 5 to 7, the fan wind can be discharged in the vicinity of the cutting blade (cutting location). Scattering can also be suppressed, and the amount of air discharged from the bellows increases, so that the cutting waste in the vicinity of the cutting blade can be reliably removed.

  In the second embodiment described above, the bellows covering the outer periphery of the column is used to suppress the attachment of the cutting waste to the column and to remove the cutting waste in the vicinity of the cutting blade. In order to suppress the adhesion of the cutting waste, the removal of the cutting waste may be constituted by another member. Specifically, one end is attached to a portion of the housing where the fan wind is discharged, for example, a wind window, the other end is attached to the base portion so as to open to the base portion (cutting blade) side, and the bellows is interlocked with the vertical movement of the housing. A similar effect can be obtained by using fan wind guide means such as a tube configured to expand and contract together.

1. ・ Portable router 2. ・ Base part 2A ・ ・ Abutting surface 2a ・ ・ Opening 3 ・ Column 3A ・ ・ Spring 4 ・ Housing 4A ・ ・ Body 5 ・ ・ Motor 5A ・ ・ Rotating shaft 5B ・· Fan 6 · · End bracket 6A · · Fan chamber defining portion 6B · · Holding portion 6a · · Fan chamber 6b · · Wind window 7 · · Cutting blade 61 · · Mounting portion 61A · · Sliding portion 61B · · Guide portion 61a .. Fan wind introduction hole 61b .. First air supply passage 61c .. Second air supply passage

Claims (16)

A base portion placed on the processing member;
A column extending from the base portion to the side opposite to the workpiece,
A housing that is proximate to and spaced from the workpiece along the column;
A motor provided in the housing and having a rotating shaft portion that extends toward the processing member in parallel with the column and is fitted with a cutting blade;
A fan that rotates coaxially with the rotary shaft is provided at the base end of the rotary shaft.
The portable router characterized in that the housing has a fan air discharge mechanism for guiding fan air generated by the fan from at least the housing side to the column side.   The portable router according to claim 1, wherein the fan wind discharge mechanism guides the fan wind along the column toward the base portion.   3. The portable router according to claim 2, wherein the fan air discharge mechanism includes a fan air introduction hole for guiding the fan air to the column.   4. The portable router according to claim 3, wherein the fan is a centrifugal fan, and the fan wind introduction hole is located on an extension of the fan in the centrifugal direction.   The fan air discharge mechanism has a guide portion that is disposed at an outer peripheral position of the column and forms an air supply passage with the column, and the air supply passage communicates with the fan air introduction hole at one end side. The portable router according to claim 3, wherein the portable router opens toward the base portion at the other end side.   The portable router according to claim 5, wherein the guide portion is provided so that the air supply passage covers an outer periphery of the column.   The housing has a sliding surface that comes into contact with the column and slides relative to the column, and the air supply passage is formed on the side opposite to the fan air introduction hole, and the other end side is The portable router according to claim 5, wherein the portable router is open to the base portion side. A base portion placed on the processing member;
A column extending from the base portion to the side opposite to the workpiece,
A housing that is proximate to and spaced from the workpiece along the column;
A rotating shaft portion provided in the housing and extending toward the processing member in parallel with the column is provided, and a fan that rotates integrally with the rotating shaft portion is provided at the base end of the rotating shaft portion. A motor provided with a cutting blade for cutting a workpiece by rotating coaxially and integrally with the rotary shaft at the tip of the rotary shaft;
A portable router comprising: a guide portion having one end attached to the housing and formed with an air supply passage for guiding the fan air generated by the fan to the vicinity of the cutting blade.   9. The portable router according to claim 8, wherein the other end of the guide portion is disposed on the base portion side, and the fan air is discharged from the other end to the vicinity of the cutting blade.   10. The portable router according to claim 8, wherein the guide portion is configured to be extendable and retractable according to the proximity and separation of the housing from the base portion. 11.   The guide portion covers an outer periphery of the column and is disposed between the housing and the base portion, and the air supply passage is formed between the guide portion and the column. Item 11. The portable router according to any one of item 9 or item 10.   The base portion has an opening through which the cutting blade can protrude from the bottom surface of the base portion in accordance with a sliding motion along the column of the housing, and communicates the opening with the air supply passage. The portable router according to any one of claims 9 to 11, further comprising a base fan wind guide portion that guides the fan wind to the cutting blade located in the vicinity of the opening.   The portable router according to claim 12, wherein the base fan wind guide portion includes a notch formed in the base portion and communicating the opening and the air supply passage.   The portable router according to claim 12, wherein the base fan guide part includes a through hole formed in the base part and communicating the opening and the air supply passage.   The portable router according to claim 9, wherein an exhaust hole is formed in the guide portion at a position near the base portion and toward the cutting blade.   The housing includes a fan chamber in which the fan is accommodated, and a fan air discharge mechanism that guides the fan air generated by the fan from the fan chamber to the column side. Item 9. The portable router according to Item 8.

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