JP2016010827A - Desk cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desk cutter including a lighting device which is usable during transportation.SOLUTION: A battery box storage part 1a is provided in an internal space of a base 1. A battery box 18 is stored in the battery box storage part 1a. A position of the battery box 18 is fixed in the battery box storage part 1a by fastening a bolt 19. The battery box 18 detachably stores multiple batteries 17. The batteries 17 can supply electric power to a first lighting device 15 and a second lighting device 16 in a state where the batteries 17 are stored in the battery box 18.

Description

  The present invention relates to an illuminated tabletop cutting machine that cuts a material to be cut with a cutting tool such as a circular saw blade.

  A tabletop cutting machine generally includes a base portion and a cutting portion (a circular saw portion) that is swingably supported by the base portion. The cutting unit has an electric motor that rotationally drives a cutting tool such as a circular saw blade. The electric motor operates with power supplied from an external AC power source such as a commercial power source. The user swings the cutting part that rotationally drives the cutting tool downward, and cuts the workpiece to be cut placed on the base part. There is also a tabletop cutting machine equipped with a lighting device that illuminates the material to be cut at hand during work.

JP 2012-157931 A

  In a conventional tabletop cutting machine, the lighting device can be lit only when connected to an external AC power source, and for example, the lighting device cannot be used during transportation. In addition, heavy desk cutters are sometimes carried with both hands, and in such cases, it is not possible to have separate lighting fixtures. For this reason, it has been difficult for the conventional tabletop cutting machine to ensure brightness when transporting in a dark place.

  The present invention has been made in view of such a situation, and an object thereof is to provide a tabletop cutting machine including a lighting device that can be used during transportation.

One embodiment of the present invention is a tabletop cutting machine. This tabletop cutting machine
A base portion having a placement surface on which a workpiece can be placed;
A cutting portion that houses a motor and rotatably supports a cutting blade that rotates by the driving force of the motor;
A holder part that swingably supports the cutting part so as to be close to and away from the base part;
A power cord for supplying power to the motor;
A tabletop cutting machine having a lighting device that can be driven by power from the power cord,
A battery that enables power supply to the lighting device is provided.

  The lighting device is connected to the cutting part, the holder part or the base part via a flexible shaft, and can irradiate light around the cutting blade and can irradiate light below the base part. There may be.

  You may have a voltage conversion means to convert the alternating voltage input from the said power cord into a direct voltage.

  A change-over switch for selecting which of the battery and the voltage conversion unit is connected to the lighting device may be provided between the voltage conversion unit and the lighting device.

Another aspect of the present invention is a tabletop cutting machine. This tabletop cutting machine
A base portion having a placement surface on which a workpiece can be placed;
A cutting portion that houses a motor and rotatably supports a cutting blade that rotates by the driving force of the motor;
A holder part that swingably supports the cutting part so as to be close to and away from the base part;
An illuminating device provided on the base portion and capable of irradiating light below the base portion;
And a battery that enables power supply to the lighting device.

  You may have the interruption | blocking switch which interrupts | blocks the electric power supply from the said battery to the said illuminating device when the said tabletop cutting machine is set | placed on the plane.

  You may provide the operation switch which switches the presence or absence of the electric power supply from the said battery to the said illuminating device in the said base part.

  The operation switch may be a position holding type switch.

  The battery may be a secondary battery.

  It should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, a tabletop cutting machine provided with the illuminating device which can be used at the time of conveyance can be provided.

The side view of the tabletop cutting machine which concerns on embodiment of this invention. The top view of the said tabletop cutting machine. The bottom view of the said tabletop cutting machine. The A section enlarged view of FIG. BB sectional drawing of FIG. The conveyance image figure of the said tabletop cutting machine. The power supply circuit diagram to the illuminating device of the said tabletop cutting machine.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, member, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

  FIG. 1 is a side view of a tabletop cutting machine according to an embodiment of the present invention. FIG. 2 is a plan view of the tabletop cutting machine. FIG. 3 is a bottom view of the tabletop cutting machine. FIG. 4 is an enlarged view of part A in FIG. 5 is a cross-sectional view taken along the line BB in FIG. FIG. 6 is a transport image diagram of the tabletop cutting machine. FIG. 7 is a power supply circuit diagram for the lighting device of the tabletop cutting machine.

  In the tabletop cutting machine of the present embodiment, a material to be cut such as wood is placed on the upper surface of the base portion. The base portion includes a base 1 that can be placed on a floor surface and the like, and a turntable 2 that is embedded in the base 1 and whose upper surface is substantially flush with the upper surface of the base 1. The turntable 2 is rotatably connected to the base 1 via a rotation shaft (not shown) orthogonal to the upper surface of the turntable 2. A pair of fences 3 are provided on the base 1, and a stable cutting operation can be performed by bringing a material to be cut into contact with the fence 3. When the turntable 2 is rotated with respect to the base 1, the positions of a holder 5 and a cutting part 12 (described later) connected to the turntable 2 with respect to the fence 3 change. As a result, the angle between the fence 3 and the side surface of the circular saw blade 14 (the angle seen from above) changes, and the workpiece to be cut against the fence 3 can be cut (angle cut) at various angles. it can.

  In the vicinity of the rear end (left side in FIG. 1) of the turntable 2, a holder 5 is erected upward. The holder 5 is connected to the turntable 2 via a tilting shaft 4 extending substantially parallel to the side surface of the circular saw blade 14 as a cutting tool (cutting blade) and the upper surface of the turntable 2. The holder 5 can tilt with respect to the turntable 2 with the tilting shaft 4 as a fulcrum. The tilt position of the holder 5 with respect to the turntable 2 is fixed by operation of the clamp lever 6 constituting the tilt restricting means. That is, the tilting of the holder 5 with respect to the turntable 2 can be fixed and released by operating the clamp lever 6. By changing the tilt position of the holder 5, the tilt position of the cutting part 12 connected to the holder 5 is also changed, and the workpiece can be tilted and cut.

  A swing shaft 11 extending in a direction perpendicular to the side surface of the circular saw blade 14 is fixed to the holder 5, and a cutting portion 12 is connected to the holder 5 through the swing shaft 11. A spring (not shown) is provided on the outer periphery of the swing shaft 11, and the cutting portion 12 is urged by this spring so as to swing in a direction (upward) in which the circular saw blade 14 is separated from the base portion. The position swings upward (on the side opposite to the base) by a stopper mechanism (not shown). On the other hand, the rocking position of the cutting part 12 can be fixed to the lowermost part (base part side) by a fixing pin (not shown) for transportation and the like, and FIG. 1 and FIG. A state of swinging downward is shown.

  The housing 25 of the cutting part 12 incorporates an electric motor (not shown) serving as a drive source. The rotation of the electric motor is transmitted to the circular saw blade 14 by a rotation transmission mechanism (pulley, transmission belt, etc.) (not shown). A power cord 40 is pulled out from the rear end of the cutting unit 12, and the power cord 40 is connected to an outlet 50 to which an external AC power source such as a commercial power source is supplied. When cutting, the user grasps the handle portion 26 and pulls the trigger switch 27 for controlling the rotation and stop of the electric motor, and the cutting portion 12 is moved downward (the base portion side) with the swing shaft 11 as a fulcrum. ). Then, the circular saw blade 14 that is rotationally driven by the electric motor enters a groove (not shown) provided in the turntable 2 while cutting the material to be cut. When the circular saw blade 14 enters a predetermined amount into the groove, the cutting portion 12 is prevented from swinging by a stopper mechanism (not shown).

  Hereinafter, the lighting device of the tabletop cutting machine according to the present embodiment will be described. The lighting device includes a first lighting device 15 such as an LED connected to the cutting part 12 via a flexible shaft 15a, and a second lighting device 16 such as an LED fixed (attached) to the base 1 (see FIG. 3). The first lighting device 15 is a work light that illuminates a material to be cut at hand during cutting work, and can also be used as a light that secures brightness during transportation by power supplied from a battery 17 described later. The second lighting device 16 is a transporting light that illuminates the lower side (an installation surface of a foot or a transporting destination) from the base 1 during transportation by power supplied from a battery 17 described later.

  A battery box housing portion 1 a is provided in the internal space of the base 1. The battery box 18 is accommodated in the battery box accommodating portion 1a. The position of the battery box 18 in the battery box housing 1 a is fixed by tightening the bolt 19. The battery box 18 is detachable from the base 1 by sliding in the horizontal direction with the bolts 19 loosened. The battery box 18 detachably accommodates a plurality of batteries 17. The battery 17 is preferably a secondary battery. The battery box 18 preferably has a charging function, and can charge the battery 17 with the power supplied from the power cord 40. The battery 17 can supply power to the first lighting device 15 and the second lighting device 16 while being housed in the battery box 18.

  Within the cutting section 12, there are AC power supply wiring 7 having one end electrically connected to the base end of the power cord 40, and a converter 30 as voltage conversion means connected to the other end of the AC power supply wiring 7. Provided. The converter 30 converts AC power (AC voltage) supplied through the AC power supply wiring 7 into DC power (DC voltage). A DC power supply wiring 8 extends from the converter 30 and is connected to the changeover switch 20. A charging wiring 9 branches from the AC power supply wiring 7. The charging wire 9 is connected to the battery box 18 in the base 1 from the cutting part 12 via the holder 5 and the turntable 2. On the other hand, the battery power supply wiring 10 extends from the battery box 18. The battery power supply wiring 10 is connected from the base 1 via the turntable 2 and the holder 5 to the changeover switch 20 provided in the cutting part 12. The changeover switch 20 is preferably a position holding type (alternate type) switch, one end of which is connected to the first lighting device 15 and the other end thereof is connected to the DC power supply wiring 8 or the battery power supply wiring 10 or opened. Is done. That is, the user turns off the first lighting device 15 by operating the changeover switch 20, lights it with the power of the battery 17, or lights it with the power supplied from the converter 30 (power supplied from the external AC power supply). It is possible to select whether to do.

  As shown in FIG. 4, an operation switch 21 for switching on / off of the second lighting device 16 is provided on the side surface of the base 1. The operation switch 21 is preferably a position holding type switch. On the bottom surface (grounding surface) of the base 1, a grounding switch 22 is provided as a cutoff switch. The ground switch 22 is preferably an automatic return type (momentary system) switch, and is turned off when pressed by a table top surface or the like, and turned on when not pressed during transportation. The operation switch 21 and the ground switch 22 are connected in series between the battery box 18 and the second lighting device 16 (FIG. 7). When both switches are turned on, the second lighting device 16 is turned on.

  According to the present embodiment, the following effects can be achieved.

(1) A battery box 18 is provided in the base 1 and a battery 17 is provided. The first lighting device 15 is lit by the power of the battery 17 even if the desktop cutting machine is not connected to an external AC power source. Since it is possible, the 1st lighting device 15 can be used also at the time of conveyance. In particular, when carrying both hands as shown in FIG. 6, it is not possible to have a separate lighting fixture, but even in such a case, a certain level of brightness can be secured by the first lighting device 15.

(2) Since the second lighting device 16 that can be turned on by the power of the battery 17 is provided below the base 1, the second lighting device 16 is used during transportation when the tabletop cutting machine is not connected to the external AC power source. can do. In particular, when carrying both hands as shown in FIG. 6, it is not possible to have a separate lighting fixture, but even in such a case, the second lighting device 16 can ensure a certain level of brightness. In addition, the second lighting device 16 can easily illuminate the lower part of the base 1 (an installation surface of a foot or a transport destination) as compared with the first lighting device 15 at the time of transportation, and the safety of transportation is further enhanced.

(3) Since the hollow portion in the base 1 is used as a storage space for the battery 17, the desktop cutter does not increase in size by providing the battery 17.

(4) Since the ground switch 22 is provided on the bottom surface of the base 1 and the second lighting device 16 is turned on when both the operation switch 21 and the ground switch 22 are turned on, the user forgets to turn off the operation switch 21. However, if a desk-top cutting machine is placed, the ground switch 22 is pushed and turned off, the second lighting device 16 is turned off, and waste of power consumption can be prevented.

(5) Since the operation switch 21 is arranged on the side of the base 1 so that it can be operated with the tabletop cutting machine as shown in FIG. 6, after holding the tabletop cutting machine (during transportation) Even when it is desired to turn on the second lighting device 16, the second lighting device 16 can be turned on without lowering the tabletop cutting machine, which is convenient.

  The present invention has been described above by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, modifications will be described.

  The tabletop cutting machine may be of a slide type (a type in which the cutting unit 12 is slidable in a direction parallel to the tilting axis 4 with respect to the holder 5). The lighting device may be only one of the first lighting device 15 and the second lighting device 16. The 1st lighting device 15 may be connected to parts (holder 5 or base part) other than cutting part 12 via flexible shaft 15a. The battery 18 may be a secondary battery for a portable power tool. In that case, a terminal for battery attachment may be provided on the main body. The battery box 18 may not be provided with a charging function. In this case, the battery 17 may be a primary battery.

1 Base, 1a Battery box housing part, 2 Turntable, 3 Fence, 4 Tilt shaft, 5 Holder, 6 Clamp lever, 7 AC power supply wiring, 8 DC power supply wiring, 9 Charging wiring, 10 Battery power supply wiring, DESCRIPTION OF SYMBOLS 11 Oscillation shaft, 12 Cutting part (circular saw part), 14 Circular saw blade (cutting blade), 15 First lighting device, 15a Flexible shaft, 16 Second lighting device, 17 Battery (secondary battery), 18 Battery box (charger), 19 volts, 20 changeover switch, 21 operation switch, 22 grounding switch (cutoff switch), 25 housing, 26 handle, 27 trigger switch, 30 converter (voltage conversion means), 40 power cord, 50 Outlet

Claims (9)

A base portion having a placement surface on which a workpiece can be placed;
A cutting portion that houses a motor and rotatably supports a cutting blade that rotates by the driving force of the motor;
A holder part that swingably supports the cutting part so as to be close to and away from the base part;
A power cord for supplying power to the motor;
A tabletop cutting machine having a lighting device that can be driven by power from the power cord,
A tabletop cutting machine provided with a battery capable of supplying power to the lighting device.   The lighting device is connected to the cutting part, the holder part or the base part via a flexible shaft, and can irradiate light around the cutting blade and can irradiate light below the base part. The tabletop cutting machine according to claim 1, wherein the tabletop cutting machine is provided.   The tabletop cutting machine according to claim 1 or 2, further comprising voltage conversion means for converting an AC voltage input from the power cord into a DC voltage.   The tabletop according to claim 3, wherein a changeover switch for selecting which of the battery and the voltage conversion unit is connected to the lighting device is provided between the voltage conversion unit and the lighting device. Cutting machine. A base portion having a placement surface on which a workpiece can be placed;
A cutting portion that houses a motor and rotatably supports a cutting blade that rotates by the driving force of the motor;
A holder part that swingably supports the cutting part so as to be close to and away from the base part;
An illuminating device provided on the base portion and capable of irradiating light below the base portion;
A tabletop cutting machine comprising: a battery that enables power supply to the lighting device.   6. The tabletop cutting machine according to claim 5, further comprising a cut-off switch that cuts off power supply from the battery to the lighting device when the tabletop cutting machine is placed on a flat surface.   The tabletop cutting machine according to claim 5 or 6, wherein an operation switch for switching presence / absence of power supply from the battery to the lighting device is provided in the base portion.   The tabletop cutting machine according to claim 7, wherein the operation switch is a position holding type switch.   The tabletop cutting machine according to any one of claims 1 to 8, wherein the battery is a secondary battery.