Machining devices

Abstract

Machining device (1) comprising a cutting blade (22) for cutting a workpiece (W), a parallel guide rail (81; 82) attached to the machining machine (1), the parallel guide rail (81; 82) comprising a connecting rod (81b; 82b) configured to guide the cutting blade (22) of the machining machine (1) with respect to the workpiece (W), a guide rail fixing device (80) comprising a rotatable actuating element (88) in which the connecting rod (81b; 82b) is pressed by a force effected by rotation of the actuating element (88) so that a position of the parallel guide rail (81; 82) is fixed, a friction reducing element (87) located between the actuating element (88) and the connecting rod (81b;82b) is arranged, the friction-reducing component (87) has a pressure component (87) which is rotatable with respect to the actuating component (88), the pressure component (87) is configured to be brought into contact with the connecting rod (81b; 82b; 111) to press the connecting rod (81b; 82b; 111), and the pressure component (87) is rotatably mounted by the actuating component (88) by means of a ball bearing (86).

Description

[0001] The present invention relates generally to a processing device and / or a processing tool, such as a portable cutting device, which is used for cutting a material to be cut (workpiece), such as a wood material, etc.

[0002] In some prior art portable cutting devices, a user performs a cutting (sawing) operation on a material (workpiece) by moving the cutting device, which is positioned on the material (workpiece). These types of cutting devices may include a base that is brought into contact with an upper surface of the material (workpiece) and a cutting device body that is mounted above an upper surface of the base. The cutting device contains an electric motor and a rotary cutting blade that can rotate by means of the electric motor as a drive source. The cutting blade projects downwards from a lower surface of the base, i.e., from a contact surface of the base with respect to the material (workpiece).The user can cut the material by touching the base with the upper surface of the material (workpiece) to be cut, rotating the cutting blade which protrudes from the lower surface of the base, and then moving the cutting device along the material (workpiece) to be cut.

[0003] Some cutting machines of this type were equipped with a parallel guide rail for precisely moving the cutting device parallel to an edge of the material (workpiece) to be cut. The parallel guide rail comprises a guide rail main body, which is brought into contact with the edge of the material (workpiece) to be cut, and a connecting rod that can hold the guide rail main body in a fixed position in an adjustable manner. For example, Japanese patent publication no. 2006-159786 discloses a method for fixing the parallel guide rail with respect to the base by pressing the tip of a fixing screw directly onto the connecting rod.2013-248740 discloses a method for preventing a pressure point (notch) on the connecting rod through surface contact of a sheet metal support component, which is vertically movable, with the connecting rod with a pressed fixing screw, thereby enabling the user to precisely adjust the position of the parallel guide ruler in relation to the base.

[0004] However, the guide rail fixing method disclosed in Japanese patent publication no. 2006-159786 can cause the following defects due to its structure, in which the tip of the fixing screw directly presses against the connecting rod. That is, the connecting rod can move as a result of the rotation of the fixing screw due to friction between the fixing screw and the connecting rod. In some cases, a pressure point on the connecting rod formed by the tip of the screw could displace (shift) the position of the connecting rod when it is fixed. Because of this configuration, it can be difficult to accurately adjust the position of the guide rail main body. On the other hand, according to the guide rail fixing structure disclosed in Japanese patent publication no.Patent 2013-248740 discloses a design in which the bearing component is brought into surface contact with the connecting rod, thus preventing the pressure point discussed above from being created. However, there remains a possibility of displacement (shifting) of the connecting rod due to friction generated by the surface contact of the bearing component.

[0005] The above-mentioned problem is solved by a processing device according to claim 1 or claim 2.

[0006] Thus, as a result of the aforementioned deficiencies, there is a need to prevent both the creation of pressure points by the tip of the screw when the connecting rod is screwed to the fixing screw, and also to prevent the creation of an offset of the connecting rod due to the friction generated by the surface contact of the bearing component, thereby enabling precise fine adjustment of the position of the parallel guide ruler in relation to the base by the user.

[0007] In an exemplary embodiment of the present disclosure, a machining device containing a cutting blade for cutting a workpiece has a parallel guide rail attached to the machining device. The parallel guide rail has a connecting rod and is configured to guide the cutting blade of the machining device with respect to the workpiece. The machining device also has a guide rail fixing device comprising an actuating element that is rotatable. Furthermore, the connecting rod is pressed by a moving force (moving force) generated by rotating the actuating element, thus fixing a position of the parallel guide rail. A friction-reducing element is arranged between the actuating element and the connecting rod.

[0008] According to this embodiment, the friction (frictional force) of the actuating component with respect to the connecting rod can be reduced by the friction-reducing component. Consequently, damage such as a pressure mark (notch) etc. on the connecting rod can be prevented. Furthermore, positional misalignment of the connecting rod can also be prevented, and the parallel guide rail can be precisely adjusted. A rolling bearing, such as a ball bearing, as well as a bearing made of synthetic resin with a low coefficient of friction, or a bearing such as an oil-impregnated metal bearing, can also be used as the friction-reducing component. Additionally, a lubricating oil, such as grease, can be applied to the tip of the actuating component (a pressure component with respect to the connecting rod) to further reduce friction.

[0009] In another exemplary embodiment of the disclosure, the friction-reducing component includes a pressure component which is rotatable with respect to the actuating component, and the pressure component is configured to be brought into contact with the connecting rod so that it presses the connecting rod.

[0010] According to this embodiment, the pressing element, which is rotated relative to the actuating element, is brought into contact with the connecting rod, and in this contact state, the connecting rod is pressed by the force generated by rotating the actuating element. In the prior art, a pointed end of the fixing screw directly presses the connecting rod to fix the parallel guide rail. In contrast, in the present embodiment, the connecting rod can be fixed via the pressing element by indirectly applying the force generated by rotating the actuating element. Consequently, and unlike the prior art, the formation of damage, such as a pressure mark (notch), on the connecting rod can be prevented.Furthermore, since the pressure component, as the friction-reducing component, is rotatably mounted by the actuating component, its rotation is restricted at the stage where the pressure component is pressed by the connecting rod through rotation of the actuating component. Due to this restriction of rotation, the positional offset of the connecting rod can also be limited. Consequently, the position of the parallel guide rail can be precisely adjusted.

[0011] In another exemplary embodiment of the disclosure, the pressure component is rotatably mounted by the actuating component by means of a ball bearing.

[0012] According to this embodiment, the force in the direction of rotation generated by rotating the actuating component is not transmitted to the pressing component due to its bearing via the ball bearing. Because of this configuration, the pressing component does not rotate relative to the connecting rod when in a pressing position. Consequently, the connecting rod does not shift position, and the parallel guide rail can be positioned correctly.

[0013] In another exemplary embodiment of the disclosure, the friction between the pressing component and the connecting component can be configured such that it is greater than the friction between the pressing component and the actuating component.

[0014] According to such an embodiment, in a pressing state of the pressing component, the rotation of the pressing component is restricted by friction absorbed by the connecting rod while the actuating component is rotated. Consequently, the positional displacement of the connecting rod is limited.

[0015] In another exemplary embodiment of the disclosure, the die-casting component is made of synthetic resin.

[0016] According to such an embodiment, the generation of damage, such as a pressure point (notch), with respect to the parallel guide rail can be reliably prevented.

[0017] In a further exemplary embodiment of the disclosure, a machining device comprising a main body with a cutting blade for cutting a workpiece and a base supporting the main body relative to the workpiece includes a tool fixing device for fixing an additional tool (accessory, equipment) to the base, wherein the tool fixing device includes an actuating element that is rotatable. Furthermore, the additional tool includes a connecting rod. The connecting rod is pressed by a force generated by rotating the actuating element, thus fixing a position of the additional tool to the base, and a friction-reducing element is arranged between the actuating element and the connecting rod.

[0018] According to this embodiment, the friction-reducing component reduces the friction between the actuating component and the connecting rod. Consequently, damage such as a pressure mark (notch) on the connecting rod can be prevented. Furthermore, positional displacement of the connecting rod can also be prevented, thus allowing the attachment position of the additional tool relative to the base to be precisely adjusted. A rolling bearing, such as a ball bearing, a bearing made of resin with a low coefficient of friction, or a bearing made of oil-impregnated metal, can also be used as the friction-reducing component.In addition, a lubricating oil, such as grease, may be applied to the tip end of the actuating component (a pressure component in relation to the connecting rod) to reduce friction.

[0019] In another exemplary embodiment of the disclosure, an adapter for an elongated guide ruler is fixed at the base as the additional tool.

[0020] According to such an embodiment, the effect discussed above can be achieved by the tool fixing device for fixing the adapter for an elongated guide rail. The adapter for an elongated guide rail is the additional tool used when the elongated guide rail is attached to the portable machining device, and the portable machining device can be guided along the elongated guide rail by means of the additional tool.

[0021] Additional tasks, features and advantages of embodiments of the present teachings will be more easily understood after reading the following detailed description together with the claims and the accompanying drawings, in which:

[0022] Fig. 1 is an overall view of a cutting device according to an exemplary embodiment of the present disclosure.

[0023] Fig. 2 one of (II) in Fig. 1. The right side view of the cutting device is shown.

[0024] Fig. 3 one of (III) in Fig. 2 is a top view of the cutting device.

[0025] Fig. 4 one of (IV) in Fig. 2 is the front view of the cutting device.

[0026] Fig. 5 a right side view of the cutting device with its cutting blade removed.

[0027] Fig. 6 a cross-sectional view along line (VI)-(VI) in Fig. Figure 2 shows the cutting device in a vertical cross-section.

[0028] Fig. Figure 7 is a partial cross-sectional plan view of the cutting device, which schematically shows a cooling airflow.

[0029] Fig. 8 one of (VIII)-(VIII) in Fig. Figure 3 shows a right-hand view of a handle where all the subdivision parts of a handle housing cover have been removed.

[0030] Fig. 9 one from the same direction as from (VIII)-(VIII) in Fig. Figure 3 shows the right-hand view with the first and third subdivision parts of the housing cover removed.

[0031] Fig. 10 one from the same direction as from (VIII)-(VIII) in Fig. The right-hand view shown in Figure 3 shows all the subdivision parts of the housing cover (a right housing half of the handle) separated from a left housing half of the handle.

[0032] Fig. Figure 11 shows a perspective view of a base in which a ruler fixing device for fixing a guide ruler in a disassembled state is shown.

[0033] Fig. 12 a cross-sectional view along the line (XII)-(XII) in Fig. Figure 3 shows the ruler fixing device in a vertical cross-section.

[0034] Fig. 13 is a side view of the cutting device in a suspended manner.

[0035] Fig. 14 one of (XIV) in Fig. Figure 13 shows the front view of the cutting device in a suspended manner.

[0036] Fig. Figure 15 shows an overall view of the cutting device with a sliding plate attached to a lower surface of the base.

[0037] Fig. Figure 16 shows a perspective view of the sliding plate from above.

[0038] Fig. 17 is a bottom view of the sliding plate.

[0039] Fig. 18 an enlarged view of (XVIII) in Fig. Figure 15 shows the perimeter of the front of the base and the sliding plate.

[0040] Fig. Figure 19 is a schematic circuit diagram of the cutting device.

[0041] Fig. 20 is a top view of the cutting device, to which an elongated guide ruler is attached by means of an adapter for an elongated guide ruler.

[0042] Fig. 21 one of (XXI) in Fig. Figure 20 shows the rear view of the cutting device, to which the elongated guide ruler is attached by means of the adapter for an elongated guide ruler.

[0043] The detailed description, which follows with reference to the accompanying drawings, is intended as a description of exemplary embodiments of the present teachings and is not intended to be limiting and / or to represent the only embodiments in which the present teachings can be implemented. The term "exemplary," used throughout this description, means "serving as an example, model, or illustration" and should not necessarily be interpreted as preferable or advantageous over other exemplary embodiments. The detailed description includes specific details to facilitate a better understanding of the exemplary embodiments of the present teachings. It is obvious to the person skilled in the art that the exemplary embodiments of the present teachings can also be implemented without these specific details.In some examples, well-known structures, components and / or devices are shown in block diagram form to avoid making significant aspects of the exemplary embodiments presented herein unclear.

[0044] Exemplary, non-limiting embodiments according to the present disclosure are now described with reference to Fig. 1 to Fig. 21 described. In the following embodiments, a cutting device is used. 1The device, which is described as a portable circular saw (portable miter saw), is a portable machining device. Regarding the front-back direction of the device's components in the configurations described below, the direction in which cutting (sawing) progresses (a cutting progress direction) can be described as a forward direction. Thus, a user can access the back of the cutting device. 1 The left and right sides of a component and / or configuration can be based on the user's left and right positions, respectively. The left and right sides can also be referred to as the back and front, respectively.

[0045] As in Fig. 1 to Fig. As shown in section 4, the cutting device can 1 a base 10, which is brought into contact with an upper surface of a workpiece W, and a main body of the device 20 exhibiting, which is above an upper surface of the base 10 is stored. The base 10 It can be formed in an approximately rectangular, flat, plate-like shape. A lower surface of the base 10 can be used as a contact surface 10a The base is defined as the surface with which the workpiece W is brought into contact. 10 can be connected to a window (opening) 10b provided for, through which a cutting blade 22 downwards relative to the contact surface 10a protrudes. The window 10b can be formed in a rectangular shape that extends in the front-back direction along a right edge of the base 10 extends. The base 10 can with a guided tour 10c on their front and a guide 10don their back side, each of these is used for aligning the cutting blade. 22 used along a marking line formed on workpiece W. A front bearing part. 11 and a rear storage part 12 can be located on the upper surface, on the front or back of the base 11 be provided. The front bearing part 11 and the rear bearing part 12 can be designed so that they are parallel to each other in an upright state (are at right angles to the upper surface of the base) 10 are (before). The main body of the device 20 can be positioned in such a way that it can be moved in the right-left direction by means of the front bearing part. 11 and the rear bearing part 12 It is tiltable.

[0046] A tilting plate 14 can be found on the front bearing part 11by means of a left-right inclined bearing shaft 13 It must be mounted in such a way that it can be tilted from side to side. A tilting position of the tilting plate 14 with regard to the front bearing part 11 can be achieved by screw fastening (tightening) a rotary knob screw 16 to be fixed. A front part of a cutting blade cover. 21 of the device main body 20 can be accessed through the right end part of the tilting plate 14 by means of an up-down tilt bearing shaft 15 be stored as in Fig. As shown in 3, a tilting plate can be used. 18 on the rear bearing part 12 by means of a left-right inclined bearing shaft 17 It should be mounted in such a way that it can be tilted in the right-left direction. The left-right tilting mounting shaft 17 on the back and the left-right tilt bearing shaft 13The front panels can be arranged coaxially in the back-to-front direction. A tilting position of the tilting plate. 18 with regard to the rear bearing part 12 can be achieved by screw fastening (tightening) a rotary knob screw 19 to be fixed. A rear part of the cutting blade cover. 21 can be achieved through the tilting plate 18 by means of a cutting depth adjustment mechanism 70 be stored. The cutting depth adjustment mechanism 70 This will be described in detail below. By loosening the aforementioned knob screws. 16 and 19 can the main body of the device 20 in the left-right direction around the left-right inclined bearing shafts 13 and 17 can be tilted. By tilting (tipping) the main body of the device. 20 in the left-right direction (mainly in a direction in which an upper part of the device main body is located)20 (moved to the right side), a cutting angle of the cutting blade can be 22 The workpiece W can be adjusted. In this way, a so-called angled cut (miter cutting, miter sawing) can be performed.

[0047] The main body of the device 20 can the rotary cutting blade 22 , the cutting blade cover 21 , whereby the cover 21 mainly the circumference on the upper side of the cutting blade 22 covers an electric motor 30 , which serves as a drive source for rotating the cutting blade 22 serves as a reduction gear 40 to reduce the rotational output of the electric motor 30 and a handle 50 exhibiting a surface that can be held by a user. Approximately the upper half of the cutting blade's circumference. 22 can be through the cutting blade cover 21It must be covered. The cutting blade 22 can descend from the lower surface of the base 10 via the window 10b the base 10 protrude. A lower part of the cutting blade. 22 , which is below the lower surface of the base 10 The protruding part can be covered by a movable cover. 23 be covered. The movable cover 23 can along the circumference of the cutting blade 22 It should be stored in such a way that it can be opened and closed. The movable cover 23 can be closed in one direction (counterclockwise in) Fig. 2) be spring-loaded. As in Fig. As shown in section 2, the movable cover can be 23 opened in a direction in which a tip (front part) of the cutting blade 22 It is exposed by being pressed through an end surface of the workpiece W. An opening / closing lever. 23acan be found on the rear part of the movable cover 23 This is intended. A user can use the opening / closing lever. 23 to open and / or close the movable cover 23 Hold and operate manually.

[0048] As in Fig. 1 and Fig. As shown in 6, the electric motor 30 with the left side (back) of the cutting blade cover 21 via the reduction gear 40 mechanically connected. A brushless motor powered by a commercial AC power source. 68 (e.g., powered by 100 V) can be considered the electric motor 30 be used. As in Fig. As shown in 6, the electric motor 30 a stator 32 , which is attached to an engine housing 31 is fixed, and a rotor 33 included, which is located on an inner circumference of the stator 33 It is mounted on a rotatable bearing. An electrical circuit board.34 (Sensor circuit board) 34 ), on which a magnetic sensor is mounted to detect the rotational position of the rotor. 23 It is mounted on the left side (rear) of the stator 32 It would be appropriate. A motor shaft 35 , which is connected to the rotor 33 mechanically connected, it can be rotated about a motor axis J by means of bearings 35a and 35b be stored. The warehouse 35a can be on one output side of the motor shaft 35 be arranged and the warehouse 35b It can be located on the opposite side from the output side (opposite output side). The storage 35a on the output side in a gearbox housing 43 be held and the camp 35b on the opposite output side, in the motor housing 31 be held.

[0049] A cooling fan wheel 36 can be attached to the motor shaft 35 It would be appropriate. A deflection plate 36acan be found on the left side (back) of the cooling fan wheel 36 It must be arranged to effectively generate an airflow. An opening in the motor housing. 31 can be done through the deflection plate 36a It must be covered. When the electric motor is running, the cooling fan wheel rotates. 36 together with the motor shaft 35 As in Fig. As shown in figure 7, a plurality of intake openings can be used. 37 on the left side (rear) of the engine housing 31 be arranged. If the cooling fan wheel 36 As the engine rotates, fresh outside air (engine cooling air) enters the engine housing. 31 via the intake openings 37 drawn in. The fresh outside air that enters the engine housing 31 being sucked in can damage the stator 32 , the rotor 33 and the sensor circuit board 34 cool and can flow to the output side along the motor axis J.

[0050] As in Fig. As shown in 7, a ventilation hole can be 38 on the rear surface of the engine casing 31 be provided. In addition, the ventilation hole can 38 on the side of the cooling fan wheel 36 The openings are designed to be radially outside of and parallel to the engine axis J. A portion of the fresh outside air (engine cooling air) is drawn in through openings. 37 flows in and the interior of the engine housing 31 It cools, can then be moved into a control housing 60 through the ventilation hole 38 flow. The control housing 60 It can have a flat rectangular housing and can be integral with the engine housing. 31 on its back. As in Fig. 3 and Fig. As shown in section 7, the control housing can be used. 60 predominantly in the left direction in a similar way to the engine casing 31 preside. A control system 61to control the electric motor 30 can be in the control housing 60 be recorded. The control 61 It can be configured to accommodate a control circuit board molded from resin within the rectangular flat housing made of die-cast aluminum. As indicated by a solid wide arrow (A) in Fig. As shown in section 7, the motor cooling air entering the control housing can 60 flowed from an outlet hole 63 through a ventilation passage 62 flowing on the right side of the control housing 60 is planned. The control 61 , which has heat-generating sources, such as FETs (field-effect transistors) and a diode bridge, etc., can be suitablely cooled by the motor cooling air that enters the control housing. 60 It flows and needs to be cooled. The control system 61It can also be a rectifier circuit that uses the diode bridge to rectify a current supplied by the power source, a control circuit that uses a microprocessor, for example, to transmit a control signal based on position information regarding the rotor. 33 , which are detected by the sensor of the sensor circuit board 34 A drive circuit is detected, which uses FETs to switch the current that goes to the electric motor. 30 based on the control signal flowing from the control circuit, these electrical components can be found on the controller. 61 It must be installed. A smoothing circuit that includes an electrolytic capacitor. 67 for smoothing a rectified current, cannot be on the control 61 be mounted, but can be housed in a capacitor case 66 be included. The capacitor housing 66 will be described further below.

[0051] On the front of the engine casing 31 can another ventilation hole 39 on the side of the cooling fan wheel 36 It is provided that this channel is located radially outside of and parallel to the motor axis J. 65 can be used with the ventilation hole 39 be connected. The channel 65 can move forward along the left side (back) of the cutting blade cover 21 extend. The front end of the canal 65 can be proximal to a cutting position of the workpiece W. As indicated by a filled wide arrow (B) in Fig. As shown in section 7, some of the fresh outside air (engine cooling air) can enter through the openings. 37 is sucked in and the inside of the engine casing 31 cools, on to the leadership 10c from the ventilation hole 39 across the canal 65flow. Dust, such as cutting chips and / or sawdust, that accumulates in the vicinity of the guide. 10c has accumulated, can thus be drawn through the engine cooling air coming from the duct 65 It flows and is blown forward. By blowing away the accumulated dust in the vicinity of the guide. 10c can the visibility of leadership 10c This can be improved, and the cutting work can be carried out accurately and quickly with a clear (unobstructed) line of sight. The cooling air, the fresh outside air (engine cooling air), which enters through the openings 37 is sucked in and the inside of the engine casing 31 cools, which does not go to the ventilation holes 38 , 39 The flow can lead to the cutting blade cover. 21 through the inside of the gearbox housing 43 flow. Through the movement of this part of the cooling air, which leads to the cutting blade cover. 21As the air flows, dust, such as the cutting chips and sawdust generated at the cutting position, can be blown away.

[0052] As in Fig. 1 and Fig. 2 shown, an arrow can 21a , which determines the direction of rotation of the cutting blade 22 indicates on the right side (front) of the cutting blade cover 21 be marked. As indicated by the arrow 21a in Fig. 2 is displayed, the cutting blade 22 Rotate in one direction, counterclockwise. Because of this indicated direction of rotation, dust, such as sawdust, can be thrown upwards in the cutting position due to the (rotational) force of the rotating cutting blade. 22 flies. Consequently, the dust is carried from the cutting position into the cutting blade cover. 21 due to the upward flight caused by the indicated direction of rotation, it is blown out and can accumulate on a rear side inside the cutting blade cover. 21due to the rotational force of the cutting blade 22 accumulate.

[0053] The rotational output of the electric motor 30 can be achieved using the reduction gear 40 be reduced and then attached to a spindle 41 be transferred. As in Fig. As shown in section 6, there is a driving gear. 35c , located at one end (front end) of the motor shaft 35 is intended to engage with a first driven gear 46 The first driven gear 46 can be connected to an intermediate shaft 47 be fixed. The intermediate shaft 47 can be located on the back (right side) of and below the motor shaft 35 be arranged and can be accessed through the gearbox housing 43 by means of two bearings 47a , 47b, which are arranged on the output side and counter-output side along a right-left direction parallel to the motor axis J, and are rotatably mounted. A second driven gear 48 can be integrally integrated with the intermediate shaft 47 be trained. The second driven gear 48 can engage with the third driven gear 49 The third driven gear is standing. 49 can be attached to the spindle 41 be fixed.

[0054] The rotational output of the electric motor 30 can be reduced in two stages, i.e. by means of the engagement of the driving gear 35c with the first driven gear 46 and then further by means of the engagement of the second driven gear 48 with the third driven gear 49 The reduced rotational output of the electric motor 30 can be attached to the spindle 41 be transferred. The spindle41 can move to the right into the interior of the cutting blade cover 21 protrudes. The circular cutting blade 22 can be located at a front end (tip end) of the spindle 41 , which is inside the cutting blade cover 21 protrudes, should be attached. The cutting blade 22 can be attached to the spindle 41 through a cutting blade fixing screw 42 , which are screwed to the front surface of the spindle 49 is (the one with the front surface of the spindle 49 (is screwed on), be attached. The spindle 41 can be found on the front side and below the intermediate shaft 47 be arranged, and can be through the gearbox housing 43 by means of two bearings 44 , 45 , which are arranged on the output side and counter-output side along the direction of the motor axis J, shall be rotatably mounted.

[0055] As in Fig. As shown in 1, the handle can be 50 be formed in a loop shape (in an approximate inverted V-shape) that forms an upper part of the electric motor 30 as well as the upper surface of the control housing 60 overstretched. The handle 50 can be positioned approximately in the position that defines the center of gravity of the cutting device 1 with regard to the left-right direction of the cutting device 1 (in the direction of the motor axis J of the electric motor) 30 ) limits the area. Due to this configuration, the center of gravity of the cutting device can be reduced. 1 below the handle 50 be positioned so that the user can easily use the cutting device 1 by holding the handle, which keeps the device balanced in the left-right direction.

[0056] The handle 50It can be formed in an inverted V-shape, which has a raised part. 51 and a handle 52 exhibits the raised part 51 can be designed so that it points upwards in the vicinity of the connecting part, which is driven by the electric motor 30 and the reduction gear 40 is trained, increases. The grip 52 can be designed in such a way that it extends in the rearward direction from the upper part of the raised part. 51 is inclined. In other words, the raised part can 51 It should be designed so that it slopes downwards in the forward direction from one point of the inverted V-shape, and the handle 52 It can be designed so that it slopes downwards from the apex of the inverted V-shape. The user can adjust the cutting device. 1 operate (use) by pulling the handle 52It holds the handle, which slopes down towards the back (user's side). The rear part of the handle 52 can be connected to the upper surface of the control housing 60 be connected. The control housing can be described below. 60 as part of the handle 50 , if necessary, be understood. In this case, the handle can be 50 the elevated part 51 , the handle 52 and the control housing 60 included. In addition, the handle 50 in the loop shape that forms the upper surface of the electric motor 30 how its rear surface spans.

[0057] A power cable 55 can be accessed from the rear part of the handle 52 be pulled out. Specifically, the power cable may be... 55 through a rubber protective tube 55a , which is on the rear part of the handle 52 appropriate, to be introduced. As in Fig. 19 shown when a plug 55c of the power cable 55 with a power outlet (socket) 69 If connected to, for example, 100 V alternating current, the electric motor can 30 with an alternating current power supply 68 to be operated and the cutting device 1 can be in a ready-to-use / start state. This description may describe a state in which the plug 55c of the power cable 55 into the socket 69 is inserted and mechanically connected to it (or in a state in which a battery pack is connected to a battery mounting part of the cutting device) 1 mechanically connected, in which a DC power source can be used), or in other words, in a state in which the power source is connected to a main circuit (a circuit that connects the power source and the electric motor) 30connects) is connected and current in the main circuit is switched on by actuating a power source actuating component (circuit breaker) 53 Such a state can be described as a "power source connection state". In the power source connection state, a switching operation of the power source actuation component (circuit breaker) can occur. 53 supply the main circuit with power (current) (current can flow in the main circuit), the electric motor 30 can run, and consequently the cutting device can 1 work.

[0058] As in Fig. 1 shown, can be a power indicator (energy indicator) 56 to indicate the power source connection status described above on the upper front surface of the raised part 51 be planned. As in Fig. 19 shown when the plug 55c of the power cable 55 in the electrical socket69 Once introduced and mechanically connected to it, the power indicator can 56 be switched on, even if the circuit breaker 53 is not switched on. In this way, the power indicator cannot be displayed. 56 The present embodiment includes a function for indicating the connection status of the power cable. 55 regarding the power outlet 69 exhibit this function. In addition to this function, the performance indicator can 56 a function of displaying that the cutting device 1 is prevented from restarting or from indicating that the electric motor 30 is in an overload condition, or that the temperature of the electric motor is too high. 30 exhibiting abnormal characteristics, etc. In the present embodiment, LEDs (light-emitting diodes) can be used as a light source for power indication. 56can be used. By adjusting the colors of the LEDs, switching between an on state and a flashing state, or changing a flashing speed, etc., the functions described above can be visually displayed.

[0059] In the prior art, such as the published Japanese patent application No. 2005-349699, a power indicator that shows the status of a power source connection is located on the cutting blade cover. 21 located on a side part of the handle. However, in a case where the handle is located near the cutting blade cover, a brushless motor can be used instead of an electric motor. 30 , which is compact in relation to the length of the cutting device, a problem of impaired visibility of the power indicator may occur. In contrast, the power indicator 56in the present embodiment not on the side of the handle 50 intended, but rather on the front side of the handle 50 , which the user holds, and on the front surface of the raised part 51 , so that the power display 56 can be seen directly from above. Due to this configuration, the power indicator in the present embodiment can be displayed. 56 not only from a side perspective, but also from above using the handle 50 near the cutting blade cover 21 arranged clearly visible.

[0060] Furthermore, a lighting switch 54 on the right side of the raised part 51 be planned. As in Fig. As shown in 2, a lighting device can be used. 24 at the front end of the right side (back) of the cutting blade cover 21be provided for. If the light switch 54 When switched on, the lighting device 24 They are switched on simultaneously, illuminating the cutting position and ensuring that cutting work can be carried out effectively in a dark place.

[0061] A push-button-type circuit breaker 53 , which can be pulled (pressed) upwards by a fingertip of the user's hand holding the handle, is located on the inner circumference (on a lower side) of the handle. 50 proximal to the lower surface of the handle 52 planned. As in Fig. As shown in section 5, the circuit breaker can 53 It should be mounted in such a way that it tilts upwards and downwards by means of a mounting shaft. 53a is movable. If the circuit breaker 53 is pressed upwards while the power indicator 56In an on-state (in the power source connection state), a switch body can 58 , which is in the handle 52 is recorded, it will be switched on. When the main switch body 58 when switched on, the electric motor 30 run and the cutting blade 22 can rotate. When the pressing action is released, the circuit breaker can 53 into an off position (an initial position) by a preload force of a compression spring 53b be returned (see Fig. 9 and Fig. 10). If the circuit breaker 53 Once returned to the off position, the main switch body can 58 be switched off and the electric motor 30 stops.

[0062] A locking button 57 can be above the circuit breaker 53 It is provided for. The locking button 57can be attached to both sides of the handle 50 be provided. If the locking button 57 is pressed while the circuit breaker is pressed 53 When pushed upwards, the electric motor can be locked in a continuous running state. In this running state, the user must operate the circuit breaker. 53 Do not press the power button continuously to keep the motor running. This allows the user to perform cutting work for extended periods without pressing the power switch. 53 This can be done in a simple manner, which improves usability in this respect. The locking state can be configured so that it can be reset by the user by repeatedly pressing the power switch. 53 will be resolved.

[0063] Even in the locked state, in case of a power interruption or the plug 55c of the power cable 55 unexpectedly out of the socket 69When the device is pulled, the power supply is interrupted and the electric motor stops accordingly. 30 In a case where the power supply is subsequently restored or the plug is disconnected 55c of the power cable 55 plug it back into the socket 69 If the previous locking state is introduced (connected to it) without the previous locking state being released, a power control can be configured so that the electric motor 30 not running and the cutting device 1 is prevented from restarting unexpectedly. The restart prevention state of the power supply can be indicated by the power indicator. 56 displayed, e.g. by the LEDs of the power indicator 56 They can be switched on and off, and will display a red light when switched on. This restart prevention state can be overridden, for example, by pressing the power switch. 53The restart prevention state can be lifted upwards. After the restart prevention state is lifted, the restart can be restarted by pressing the power switch again. 53 upwards through the user of the electric motor 30 walk again.

[0064] As in Fig. 1, Fig. 3, Fig. 4 and Fig. 6 can be a handle cover 59 , which form an outer sheath of the handle 50 forms, exhibiting a split-half structure, in which a left housing half 59L and a right half of the housing 59R are fitted together (joined together) when viewed in the left-right direction, which is a direction perpendicular to the operating direction of the circuit breaker 53 (in the front-back direction). Fig. 1, Fig. 3, Fig. 4 and Fig. 6 contain a symbol D of a mating surface (joining surface) in which the left housing half 59Land the right half of the case 59R They fit together (are joined together).

[0065] As in Fig. As shown in 10, the left half of the case can be accessed. 59L the engine housing 31 as well as the integrally designed control housing 60 span. As in Fig. As shown in 10, the circuit breaker can 53 , the light switch 54 , the locking button 57 and the switch body 58 on the left half of the housing 59L be appropriate. Furthermore, the protective tube can 55a , through which the power cable 55 This happens through two fixing screws. 55b on the rear part of the left half of the casing 59L be screwed together.

[0066] The right half of the casing 59R can be found on the left half of the housing 59L be screwed together. As in Fig. As shown in section 8, the right half of the casing can be accessed. 59Rfurther divided (split) into three parts (subdivision parts): 59R1 , 59R2 and 59R3 . The part 59R1 can detach itself from the elevated part 51 to the upper and front end of the handle 52 extend. The part 59R2 can be found on the right side of the control housing 60 correspond. The part 59R3 can be a part below the raised part 51 correspond. An entire outer surface of the first part 59R1 can be covered by an elastomeric resin layer for the purpose of shock absorption and slip prevention. In the present embodiment, the parts, i.e., the first part, can be 59R1 , the second part 59R2 and the third part 59R3 , be configured so that the elastomeric resin layer is attached to the second part 59R2 and the third part 59R3 adjacent. In other words, the second part of the subdivision can 59R2and the third part 59R3 the areas of the right half of the housing 59R correspond to areas not covered by the elastomeric resin layer. The outlet hole described above. 63 can be found on the back of the second part 59R2 be arranged. The first to third parts 59R1 , 59R2 and 59R3 can be attached separately to the left half of the housing 59L be screwed together. Due to this configuration, the first to third parts can 59R1 , 59R2 and 59R3 each from the left half of the housing 59L They can be separated (removed) by removing the corresponding screws. Fig. 8 are the first to third part 59R1 , 59R2 and 59R3 shown by thick, continuous lines.

[0067] Fig. 8 shows that the first to third part 59R1 , 59R2 and 59R3 to the left half of the casing 59L are appropriate. Fig. 9 shows that the first part 59R1 and the third part 59R3 from the left half of the case 59L are removed and the second part 59R2 appropriate. Fig. 10 shows the case in which the first to third part 59R1 , 59R2 and 59R3 (which is an overall structure of the right half of the case) 59R form) from the left half of the casing 59L are removed. In Fig. 10 are all the components, such as the light switch 54 , the circuit breaker 53 , the main switch body 58 , a holding part of the power cable 55 and the control 61 etc. exposed to the outside.

[0068] In a state in which only the first part 59R1 from the left half of the case 59L removed and the second and third part 59R2 , 59R3are attached as not shown in the figures, in this case the light switch 54 , the circuit breaker 53 and the switch body 58 etc. for inspection and / or replacement of the exterior. Furthermore, in a state where only the first part 59R1 from the left half of the case 59L removed the power cable 55 They can also be inspected or replaced. In this way, it is only necessary to inspect or replace the first part when the components described above are inspected or replaced. 59R1 from the left half of the case 59L to remove, while the second and third parts 59R2 , 59R3 can remain attached. Due to this configuration, even if the handle 50 near the cutting blade 21is arranged and the (working) area between the two components is small, allowing the inspection and replacement processes to be carried out easily, compared to a case where the entire right half of the housing is 59L (corresponding to all three parts) 59R1 , 59R2 , 59R3 (with these teachings) must be removed. Consequently, the ease of maintenance of the cutting device can be improved. 1 can be improved by the teachings presented here.

[0069] Furthermore, although not shown in the figures, when the engine casing 31 from the cutting blade cover 21 is separated and the second part 59R2 is moved in such a way that it does not interfere with the cutting depth adjustment mechanism. 70 If interference occurs, the control unit can be accessed from the outside for inspection and / or replacement by removing only the second part. 59R2 , with the first and the third part 59R1 , 59R3While remaining in the installed position, they can be exposed. Furthermore, electrical wires and connectors between the light switch and the light switch can be removed. 54 and the lighting device 24 to the outside for inspection and / or replacement by removing the third part. 59R3 to be exposed while the first and second parts remain attached. In the cases described above, only the appropriate, necessary parts need to be removed, e.g., only the first part. 59R1 in the first case, from the left half of the casing 59L for inspection and / or replacement, while the remaining parts on the left half of the housing are removed. 59L This means that, compared to a case where the entire right half of the housing is attached, it can remain attached. 59R (according to the parts) 59R1 , 59R2 and 59R3(with these gauges) must be removed, with these gauges the inspection and replacement process can be carried out simply and effectively in a small area using the patterns described above.

[0070] As in Fig. 1 to Fig. As shown in section 3, a cable hook can be used. 64 for attaching the power cable 55 on the rear part of the handle 50 , especially on the rear part of the first part 59R1 be provided for. By attaching the power cable. 55 on the cable hook 64 can determine the direction in which the power cable is pulled? 55 The direction of pull of the power cable can be changed from backwards to sideways. 55 When the direction is changed to the side, the power cable interferes. 55 not with the cutting process, which allows the user to perform the cutting process easily and effectively. The surface of the cable hook 64It may be covered with an elastomeric resin layer. Slippage of the power cable. 55 inside the cable hook 64 This can be prevented by the elastomeric resin layer. Furthermore, securing the power cable... 55 on the cable hook 64 a base end of the power cable 55 not forced into bending, which also prevents a break in the connection of the conductor wires.

[0071] As in Fig. 1, Fig. 3, Fig. 4 and Fig. As shown in section 7, a capacitor housing can be used. 66 on the front surface of the engine casing 31 It would be appropriate. A large-format electrolytic capacitor. 67 , as in Fig. 7 shown, can be found in the capacitor housing 66 be recorded. By arranging the electrolytic capacitor 67 separate from the control system 61 , can the compactness of the control system 61and ultimately the control housing 60 Improvements will be made primarily in the vertical direction (up-down direction).

[0072] The aforementioned cutting depth adjustment mechanism 70 can be between the base 10 and the main body of the device 20 be arranged. The cutting depth adjustment mechanism 70 features a function for adjusting the cutting depth of the cutting blade 22 with respect to the workpiece W by varying a projection dimension of the cutting blade 22 , that from the lower surface of the base 10 protrudes downwards. As in Fig. As shown in Figure 3, the cutting depth adjustment mechanism can be used. 70 between the inclined plate 18 and the cutting blade cover 21 be arranged in a right-left direction.

[0073] The cutting depth adjustment mechanism 70 includes an arc-shaped depth guide 71, located above the rear part of the base 10 is stored. The depth guide 71 is caused by the tilting plate 18 It is mounted in such a way that it can be tilted forwards and backwards. As in Fig. 5 and Fig. As shown in 6, the depth control can be 71 with an arc-shaped guide groove 71a A fixing screw shaft is provided. 73 can be through the guide slot 71a be introduced. As in Fig. As shown in 7, the fixing screw shaft 73 on the left surface (rear surface) of the cutting blade cover 21 It must be screwed in place. A rotating locking lever. 72 , which serves as an actuating part, can be attached to the fixing screw shaft 73 be appropriate. If the fixing screw shaft 73 by turning (actuating) the locking lever 72 Once released, the main body of the device can be removed. 20vertically around the top-bottom tilt bearing shaft 15 It can be moved (it can be tilted in the up-down direction). By tilting the main body of the device. 20 In the top-bottom direction, a projection (cutting depth) of the cutting blade can be determined. 22 , that from the lower surface of the base 10 protrudes downwards, it can be changed. Conversely, if the fixing screw shaft protrudes downwards, it can be changed. 73 by turning (actuating) the locking lever 72 in the reverse direction screwed (screwed, tightened), the position of the device main body 20 be fixed and the projection downwards or the cutting depth of the cutting blade. 22 It can be fixed in relation to the workpiece.

[0074] As in Fig. As shown in Figure 3, the cutting depth adjustment mechanism can be used. 70 between the rear part of the cutting blade cover 21 and the handle 50be arranged. Due to this configuration, the work area can be adjusted in relation to the right side of the handle. 50 small proximal to the cutting depth adjustment mechanism 70 It can be. As described above, the right half of the casing can 59R of the handle 50 in three parts 59R1 , 59R2 and 59R3 be divided and each of the parts can be removed separately from the left half of the housing. 59L to be removed. Due to this split configuration, maintenance work on, for example, the switch main body can be simplified. 58 and the power cable 55 simple and effective by using one of the three parts of the right half of the case 59R needs to be removed, compared to a case where the entire right half of the case needs to be removed. 59R from the left half of the case 59L must be removed. Specifically, as in Fig. As shown in section 3, when the cutting depth is adjusted at the maximum downward protruding position, the second part can be used. 59R2 on the left side of the locking lever 72 be positioned. In this case, it can be difficult to find the second part. 59R2 from the left half of the case 59L to remove, but the first and third parts 59R1 and 59R2 can still be easily accessed from the left half of the case 59L be removed. Due to this configuration, maintenance work on the switch main body can be simplified. 58 and the light switch 54 can be done in a simple way. In this respect, the subdivision of the right half of the housing can be used. 59R As described above, the maintenance options are improved compared to a case where the entire right half of the housing is separated from the left half. 59L must be removed.

[0075] Fig. 11 shows the base 10 as a unit. A desired guide rail can be selected from two types of parallel guide rails, i.e., from a short parallel guide rail. 81 and a long parallel guide ruler 82 The chosen ruler can be attached to the base. 10 to be attached. The short parallel guide ruler 81 can have a short ruler body 81a and a connecting rod 81b Included. The long parallel guide rail. 82 can have a long ruler body 82a and two connecting rods 82b Included. The parallel guide rail. 81 ( 82 ) can be configured so that by bringing the ruler main body into contact 81a ( 82a ), which runs along the right side of the base 10 is arranged with the right end edge of the workpiece W, the cutting device 1The parallel guide rail can be guided along the right end edge of the workpiece W. 81 ( 82 ) can at the base 10 by means of the connecting rod 81b ( 82b ) be fixed.

[0076] As in Fig. As shown in 11, the base 10 with ruler holding grooves 10e It should be provided at a front and a rear part. The left end and the right end of the ruler holding grooves. 10e can be added to the left end part or the right end part of the base 10 be open. The position of the ruler's main body. 81a ( 82a ) can be achieved by adjusting the position of the connecting rod 81b ( 82b ) within the ruler holder groove 10e (in the left-right direction) can be precisely adjusted. The position of the ruler's main body 81a ( 82a ) can be achieved by fixing the position of the connecting rod 81b ( 82b) within the ruler holder groove 10e to be fixed. A ruler fixing device. 80 can be inserted into any of the ruler holding slots 10e to fix the position of the connecting rod 81b ( 82b ) may be provided. For this purpose, two ruler fixing devices can be used. 80 of the same configuration on the front part and on the rear part of the device. Fig. Figure 12 shows the details of the ruler fixing device 80 .

[0077] As in Fig. 11 and Fig. As shown in 12, the ruler fixing device 80 a fixing screw shaft 85 , a ball bearing 86 , a pressed component 87 and an actuating component 88 exhibit the ruler fixing device. 80 It serves to fix the main body of the ruler. 81a , 82a in a desired position in relation to the lateral part of the base 10by pressing the push component 87 on the connecting rod 81b , 82b of the parallel guide ruler 80 The pressed component 87 can be placed on the connecting rod 81b , 82b are pressed by a kinetic force (a screw fastening force, screw tightening force) which is caused by a rotary actuation of the actuating component. 88 (by rotating the actuating component) 88 ) is generated. The fixing screw shaft 85 can be inserted into a fixing screw hole 10ff a fixation base 10f They are screwed onto the base. 10 is provided. The actuating component 88 can extend radially outwards from the head of the fixing screw shaft 85 Protrude and be attached to them. The actuating component 88 can be found at the head of the fixing screw shaft 85 be fixed so that a rotation of the actuating component is prevented. 88by a mother 85a is stopped, and so is the actuating component. 88 through a retaining ring 88a prevented from detaching (slipping) in one axial direction. If the actuating component 88 When rotated, the fixing screw shaft can 85 It can be moved in the up-down direction. The pressed component 87 can the upper surface of the connecting rod 81b , 82b through the force of movement (screw fastening force, screw tightening force) exerted by the fixing screw shaft 85 It is generated when it moves downwards, press.

[0078] The pressed component 87 , which serves as a friction-reducing component, can be attached to the lower part of the fixing screw shaft 85 It should be attached. The push-fit component 87 can be done using the ball bearing 86 be positioned so that it is relatively around the fixing screw shaft 85is rotatable. In the present embodiment, the ball bearing can 86 It may be used. However, another rolling bearing, such as a needle bearing or a roller bearing, can also be used. The pressed component 87 It can be made of synthetic resin and come in a tube shape (cylindrical shape) with a diameter larger than the fixing screw shaft. 85 is designed where the pressing component extends radially outwards from the ball bearing 86 protrudes. The pressed component 87 can be done with a cutout (notch) 87a It must be designed to run in a circumferential direction. An elastic rubber stick. 84 , which is made of rubber and fits into the fixing base 10f Once pressed (driven in), it can be cut out 87a enter. If the rubber pen 84 into the cutout 84 If it enters, it can pass through the outer ring of the ball bearing. 86The rubber pen can be pressed. As an effect, the pressed rubber pen can... 84 a rotation of the outer ring of the ball bearing 86 be restricted. Consequently, the push-fit component can 87 be prevented from rotating. The press-fit component 87 can be removed by means of a fixing nut 89 be restricted, which is located on the lower part of the fixing screw shaft 85 It is screwed in. The lower part of the fixing screw shaft 85 and the fixing nut 89 can be positioned so that they are relative to the lower surface of the die-cast component 87 should not protrude downwards. If the fixing screw shaft 85 When pulled down and moved downwards, the push component can 87 together with the fixing screw shaft 85 moved downwards and can access the upper surface of the connecting rod 81b ( 82b ) of the parallel guide ruler81 ( 82 ) press. At this point, the push component presses 87 the connecting rod 81b , 82b , so that a rotation of the press component 87 is prevented.

[0079] In the prior art, disclosed, for example, in Japanese patent application no. 2006-159786, the tip of the fixing screw can directly press the connecting rod to fix the position of the parallel guide ruler. However, this configuration presents a problem in that a pressure mark (notch) can be created on the connecting rod by the frictional resistance of the tip of the fixing screw pressing the connecting rod in the direction of rotation. Consequently, this pressure mark could unintentionally cause a shift in the position of the connecting rod if the fixing screw repeatedly presses the connecting rod at the same position, making it difficult to accurately adjust the position of the parallel guide ruler. In contrast, according to the ruler fixing device... 80 in the present embodiment the press component 87, which is made of synthetic resin and attached to a rotation by the rubber pin 84 is prevented, instead primarily by a frictional resistance between the press component 87 and the connecting rod 81b ( 82b ), the upper surface of the connecting rod 81b ( 82b Press down. This prevents a pressure point (notch) from being left on the connecting rod. 81b ( 82b ) is generated and the positional offset of the parallel guide ruler can be prevented. Consequently, the main body of the ruler can 81a ( 82a ) be adjusted correctly and precisely.

[0080] Furthermore, in another prior art design concerning the ruler fixing structure, disclosed, for example, in Japanese patent application No. 2013-248740, the occurrence of the aforementioned notch is reduced by having a bearing component in surface contact with the connecting rod when the fixing screw is tightened. However, here too, the friction generated by the surface contact of the bearing component can displace (shift) the position of the connecting rod. Due to this configuration, as well as in the other prior art design disclosed in Japanese patent application No. 2006-159786, it can be difficult to adjust the position of the parallel guide ruler correctly.

[0081] In contrast to the state of the art, the ruler fixing device 80 in the present embodiment, it is configured such that the push component 87, which is made of synthetic resin and has a diameter larger than that of the fixing screw shaft 85 features the connecting rod 81b ( 82b ) press. This prevents damage, such as a notch, from affecting the connecting rod. 81b ( 82b ) due to the material properties and the distribution of the surface area. Furthermore, the pressed component can 87 by means of the ball bearing 86 be positioned in such a way that, in relation to the fixing screw shaft 85 is relatively rotatable and is subject to rotation by the rubber pin 84 , as described above, is hindered. Due to this configuration, the movement force (tightening force) of the fixing screw shaft is reduced. 85 not in the direction of rotation onto the pressure component 87 transferred. Consequently, the press-fit component is displaced (shifted). 87 not the position of the connecting rod 81b (82b ) during the fixing screw shaft 85 It is screwed (tightened). Due to this configuration, only a compressive force and no movement force is exerted on the upper surface of the connecting rod. 81b ( 82b ) in one thickness direction across the pressed component 87 applied. Accordingly, a frictional force is generated, which may cause the positional offset of the connecting rod. 81b ( 82b ) causes, not creates. Therefore, the position of the connecting rod can 81b ( 82b ) and ultimately the position of the ruler's main body 81a ( 82a ) are adjusted in a precise manner that more accurately reflects the desired adjustment.

[0082] In the configuration described above, the rubber pen 84 the outer ring of the ball bearing 86 to prevent the rotation of the pressed component 87 Press. The press component 87A rotation can only be achieved by the insertion of the rubber pin. 84 or an insertion pin into the cutout (notch) 87a be prevented.

[0083] In the embodiment described above, the ruler fixing device 80 the position of the parallel guide ruler 81 , 82 fix. Such devices as the ruler fixing device 80 , can be used as a fixing device (tool fixing device) for fixing various types of additional tools (devices, accessories), such as the parallel guide ruler described 81 , 82 , at the base 10 serve. Fig. 20 and Fig. Figure 21 shows the fixing device (tool fixing device). 120 ) for fixing an adapter for a long guide ruler 110 at the base 10 the cutting device 1(Portable cutting device) as an example of the additional tool. The tool fixing device 120 can have the same configurations as the ruler fixing device 80 exhibit descriptions of structural elements and configurations that are used in conjunction with the parallel guide ruler. 81 ( 82 ) are omitted in this case, using the same reference symbols.

[0084] As in Fig. 20 shown, the base 10 with a retaining groove 10g to fix a connecting rod 111 of the adapter for a long guide ruler 110 It should be provided. Similar to the connecting rod. 81b ( 82b ) of the parallel guide ruler 81 ( 82 ) can the connecting rod 111 of the adapter for a long guide ruler 110It can also be formed in a long strip form (rod form). The same plate material as that of the connecting rod. 81b ( 82b ) can also be used for the connecting rod 111 can be used. The holding groove 10g It can be located on the front or rear side and extend in a left-right direction. The left end and the right end of the retaining groove 10g can be on the left or right side of the base 10 be open. The position of the adapter for a long guide rail. 110 can be achieved by adjusting the position of the connecting rod 111 within the holding groove 10g (The position in the left-right direction) can be precisely adjusted. The position of the adapter for a long guide ruler. 110 In the left-right direction, this can be achieved by fixing the position of the connecting rod. 111 within the holding groove 10gto be fixed. The tool fixing device 120 can be used in any of the holding grooves 10g to fix the position of the connecting rod 111 be planned.

[0085] The adapter for a long guide ruler 110 can two connecting rods 111 and the base 112 It contains a rectangular, flat plate shape. Each of the connecting rods 111 can be found on the upper surface of the base 112 by a screw fixing device 113 It must be screwed and fixed in place. A guide groove 112a , in which a leading advantage 115a of the long guide ruler 115 can be inserted, on the lower surface of the base 112 The adapter for a long guide ruler is intended. 110 can be used in such a way that the base 112 in contact with an upper surface of the long guide rail115 is brought about, where the lead advantage 15a into the guide groove 112a is introduced. The cutting process is carried out by the portable cutting device. 1 can be done using the long guide ruler 115 and the adapter for a long guide ruler 110 be carried out.

[0086] As a means of fixing the adapter for a long guide ruler 110 (where the adapter is for a long guide ruler) 110 the connecting rods 111 of the adapter for a long guide ruler 110 as well as the base 112 (contains) to the base 10 the cutting device 1 , the tool fixing device 120 , which has the same configuration as the ruler fixing device 80 features, can be used. By using the tool fixing device 120 Can friction of the press-fit component occur? 87in relation to the connecting rod 111 due to the ball bearing 86 The friction reduction effect, which serves to reduce friction, can be reduced. Consequently, the creation of damage, such as a pressure point (notch), on the connecting rod can be prevented. 111 This can be prevented. Furthermore, reducing friction through the pressure component can also prevent this. 87 the positional offset of the connecting rod 111 This can be prevented. Therefore, the adapter for a long guide rail can be used. 110 in a correct manner with regard to the base 10 be precisely adjusted.

[0087] Unlike the adapter for a long guide ruler 110 and the parallel guide ruler 81 ( 82 ) the tool fixing device described above 120 (Ruler fixing device) 80) for example, in a case where an accessory in the form of a small dust collector or a water supply accessory is used with the base 10 is connected as an additional tool.

[0088] Fig. 13 and Fig. 14 show the cutting device 1 , on which a hanging hook 90 for hanging the cutting device 1 , for example, attached to a stepladder or to the edge of a workbench (suspension part T). The suspension hook 90 can form a hook body 91 , which consists of a steel wire (a steel rod) with a diameter of approximately 5 mm manufactured and bent at three positions, and a bearing 92 for storing the hook main body 91 on the left side (back) of the cutting blade cover 21 included. As in Fig. 13 and Fig. As shown in 14, the main body of the hook can91 a base 91a containing a first shaft 91b , which distinguishes itself from the base 91a extends and at an acute angle relative to the base shaft 91a is bent, a second shaft 91c , which extends from the first shaft 91b extends and is bent almost downwards, and has a third shaft. 91d , which is separated from the second shaft 91c It extends and curves upwards, forming a U-shape. The third shaft 91d It can be configured to extend further upwards than the second shaft. 91c extends.

[0089] The storage 92 can have a tubular shape, so that the base shaft 91a of the hook body 91 through the inner circumference of the storage 92 happened. The storage 92 can be near the front of the left side (back) of the cutting blade cover21 be appropriate. The storage 92 can be fixed in one direction, so that the longitudinal axis of the bearing 92 in relation to the base 10 is tilted backwards and forms an acute angle with respect to the base 10 trains. The lower part of the base shaft 91a can be placed in the inner circumference of the storage area 92 be inserted and the hook body 91 can be rotated around the longitudinal axis of the base shaft 91a It should be mounted on a rotating bearing. The base shaft 91a can be caused by storage 92 It must be mounted in such a way that it cannot be moved axially in the up-down direction. By rotating the suspension hook. 90 around the longitudinal axis of the base shaft 91a can the hanging hook 90 be positioned so that the second shaft 91c and the third shaft 91d on the front side (one usage position of the hanging hook) 90 are arranged as in Fig. 13 shown. Additionally, by further rotation of the suspension hooks 90 be positioned so that the second and third shafts 91c , 91d on the back or side of the handle 50 (a storage position of the hanging hook) 90 are arranged.

[0090] As in Fig. 13 and Fig. As shown in 14, the cutting device 1 by positioning the hanging hook 90 at the end of a suspension part T (suspension base T) between the base shaft 91a and the second and the third shaft 91c , 91d to be hung up. The hanging hook 90 The present embodiment can have a function of suspending and storing the power cable. 55 as well as the function of suspending the cutting device 1 exhibit. As in Fig. 13 and Fig. As shown in 14, if the power cable 55is not used, this is done through the third shaft 91d be hung (stored) in a coiled and wound-up manner.

[0091] The third shaft 91d serves as the power cable suspension part (power cable hook part), with a curved part of the third shaft 91d is configured so that a tip end of the third shaft 91d at the end of the third shaft opposite the curved part 91d points upwards when the cutting device 1 through the hanging hook 90 is suspended. As in Fig. As shown in 14, the tip end of the third shaft can be 91d must be directed upwards with respect to the direction of gravity when the cutting device 1 is suspended. Due to this configuration, the power cable 55 , which is attached to the third shaft 91dis hung (hooked) to the bottom side of the U-shaped curved part that passes through the second shaft 91c and the third shaft 91d It is designed to be moved (due to gravity) and stored there. Therefore, the power cable can 55 not from the third shaft 91d be removed.

[0092] As described above, by hanging up the unused power cable 55 on the third shaft 91d of the hanging hook 90 the power cable 55neatly and accurately stowed away in a coiled manner. In the prior art, disclosed, for example, in Japanese patent publication no. 2006-116815, the unused power cord can be wound around the main body of the cutting device. However, in this case, it takes some time to unwind the power cord when the cutting device is to be used, and thus the user cannot start the cutting process quickly. In contrast, in the present teachings, according to the power cord suspension part (third shaft), the power cord suspension part (third shaft) can be wound around the main body of the cutting device. 91d ) the power cable 55 quickly from the third shaft 91 be unwound and inserted into the socket when the cutting device 1 is used. Due to this configuration, the cutting device 1 can be started quickly.

[0093] Fig. 15 shows the cutting device 1, in which a measure is taken to improve the lubricity of the base 10 was undertaken with regard to workpiece W. The cutting device 1 , which in Fig. As shown in 15, it may have a feature in which a sliding plate 100 detachable to the lower surface of the base 10 (Contact surface 10a for the workpiece W). Descriptions of structural elements and configurations that are attached together with the main body of the device. 20 etc. are omitted in this case, using the same reference symbols. Fig. Figure 16 shows the upper surface of the sliding plate 110 and Fig. Figure 17 shows the lower surface of the sliding plate 110 The sliding plate 110 can be accessed via an insertion window (insertion opening) 100a according to the window 10b the base 10 be provided. The sliding plate 10 can reach the base10 be screwed and attached to these by having their upper surface overlap with the lower surface of the base 10 Four fixing screws (not shown) can be inserted into the lower surface of the base. 10 by means of four corresponding screw holes 100b It must be screwed in place. Once the four screws are loosened, the sliding plate can be removed from the lower surface of the base. 10 be removed.

[0094] The sliding plate 100 can be configured to have four sheets (plates) 102 until 105 on the lower surface of a mounting plate 110 can be attached. The four leaves 102 until 105 can be made from ultra-high molecular weight polyethylene, which has a low coefficient of friction. As in Fig. As shown in 17, the sheet 105 on the mounting plate 101along the right edge of the lower surface of the base 10 be attached in the front-back direction, the leaf 102 can along the left edge of the lower surface of the base 10 be appropriate. Furthermore, the leaf 103 on the front of the insertion window 100a be appropriate and the leaf 104 can be found on the back of the insertion window. 100a appropriate.

[0095] As in Fig. 16 and Fig. As shown in 17, the sliding plate 100 with a cutout 110c to take up the lead 10c the base should be located at its front. The leaf 103 can be attached to the recess and extend from there to the front of the insertion window. 100a extend the leaf 104 can be found on the back of the insertion window. 100abe attached and extend from this to the rear end of the mounting plate 101 extend each of the leaves 102 until 105 It can be attached to the mounting plate using an adhesive.

[0096] As in Fig. As shown in 16, each end of the four leaves can be used. 102 until 105 , which is located on the front side in the direction of cutting progress, from the lower surface to the upper surface of the mounting plate 101 be folded back. In Fig. 16 show the reference symbols 102a , 103a , 104a and 105a the folded-back parts of the leaves 102 until 105 from the lower to the upper surface of the mounting plate 101 . The leaf 103 can within the recess 100c It should be folded back towards the top. If the sliding plate 100 on the lower surface of the base 10When attached, the folded-back parts can 102a , 103a , 104a and 105a between the lower surface of the base 10 and the sliding plate 100 They can be held (inserted) in place. In this way, the leaves can be... 102 until 105 on the front side in the direction of cutting progress from the bottom to the top of the mounting plate 101 be folded back and the folded-back parts 102a , 103a , 104a and 105a can be between the lower surface of the base 10 and the sliding plate 100 They are held (inserted). Because of this configuration, the leaves can 102 until 105 from detaching from the mounting plate 101 be prevented, even if the cutting device 1 is moved in the cutting progress direction and the lower surface of the base 10(in this case, the lower surface of the sliding plate) 100 ) is moved along the upper surface of the workpiece W.

[0097] As in Fig. Shown in 18 are the folded-back parts. 102a until 105a the leaves 102 until 105 within grooves 101a folded back, which are attached to the upper surface of the mounting plate 101 are provided for. Due to this groove configuration of the mounting plate. 101 can the folded-back parts 102a until 105a flush with the upper surface of the mounting plate 101 be folded back, thus reducing the thickness of the plate 101 (in the top-bottom direction) can be maintained. Therefore, the mounting plate can be 101 at the base 10 must be installed in a flat manner so that there is no gap (space) or distance between the lower surface of the base 10 and the mounting plate101 is generated.

[0098] As described above, by attaching the sliding plate 100 , on which the leaves 102 until 105 , which have low frictional resistance, are attached (glued) to the lower surface of the base 10 to prevent damage to the workpiece W and the cutting device 1 It can be moved smoothly (without friction). Consequently, the cutting efficiency of the cutting device can be improved. 1 can be improved.

[0099] The sliding plate 100 can be from the lower surface of the base 10 by removing the screws at the four positions 100b can be removed. Thus, in a case where one of the leaves 102 until 105 detaches, the sliding plate 100 with a different sliding plate 100The part that has been prepared for use can be replaced. Therefore, the cutting process can be restarted in a short time.

[0100] Furthermore, as described above, the four leaves 102 until 105 separately on the sliding plate 100 be appropriate. Due to this configuration, the four leaves 102 until 105 (especially the leaf) 103 ) according to the concave-convex shape (of the recess) 100c ) the mounting plate 101 be folded back correctly.

[0101] In the prior art, as exemplified by Japanese patent publication no. 2006-26886, fluorine coatings are applied directly to the lower surface of the base to improve its lubricity. Furthermore, Japanese patent publication no. 2015-136873 discloses that polyethylene sheets are bonded directly to the lower surface of the base to improve its lubricity. According to these disclosures, the lubricity of the base with respect to the workpiece can be improved. However, these methods do not correspond to a case where high lubricity is required. Additionally, Japanese patent publication no. 2006-289869 discloses a plate with fluorine coatings applied to it, which are detachably attached to the lower surface of the base to improve its lubricity.However, fluorinated coatings exhibit a problem of reduced lubricity in cases where the workpiece has a high water content. Furthermore, Japanese patent publication No. 2001-315075 discloses that a plate made of ultra-high molecular weight polyethylene is attached to the lower surface of the base to improve its lubricity. However, if the surface of the plate is damaged, the entire plate must be replaced, thus increasing maintenance costs.

[0102] In contrast, according to the sliding plate 100 in the present embodiment the mounting plate 101 , on which the leaves 102 until 105 with a low coefficient of friction and made of ultra-high molecular weight polyethylene, are attached to the lower surface of the base. 10can be screwed in. Because of this configuration, if high sliding properties are not required for the base, the plate can be... 101 in a simple way from the ground up 10 be removed. Furthermore, there are no fluorine coatings on the leaves. 102 until 105 applied, but the leaves 102 until 105 They are made of an ultra-high molecular weight polyethylene, which differs from the state of the art. Due to this configuration, high lubricity can be achieved even when the workpiece is wet, etc. Furthermore, the sheets can 102 until 105 , which are made from ultra-high molecular weight polyethylene, on the mounting plate 101 It must be attached by gluing it on using an adhesive, as described above. Because of this configuration, if one of the leaves... 102 until 105If a sheet detaches or becomes damaged, only the detached or damaged sheet needs to be replaced. In this respect, maintenance costs can be substantially reduced compared to replacing the entire fluorine-coated plate.

[0103] According to the portable processing device (cutting device) 1 In the present embodiment, the ruler fixing device 80 for fixing the parallel guide ruler 81 , 82 in relation to the base 10 be configured so that the parallel guide rails 81 , 82 by indirectly applying the fastening force (compressive force) in the axial top-bottom direction of the fixing screw shaft 85 to be fixed, which transfers the force to the pressing component 87transmits, which serves as the friction-reducing component. This configuration is the opposite of a configuration in which the parallel guide rails 81 , 82 by directly pressing the fixing screw shaft 85 on the connecting rod 81b , 82b , as is the case in the prior art. Due to the configuration of the present embodiment with the pressure component, pressure marks (notches) on the connecting rod can be prevented. 81b ( 82b ) can be generated, which represents an improvement over conventional devices. Furthermore, the pressed component can 87 made of a synthetic resin, and therefore the creation of damage, such as a pressure mark (notch), can be reliably traced back to its origin on the connecting rod. 81b ( 82b ) can be prevented.

[0104] Furthermore, the press-fit component87 through the fixing screw shaft 85 by means of the ball bearing 86 It must be rotatably mounted. This allows for a state in which the pressed component... 87 on the connecting rod 81b ( 82b ) by rotating the actuating component 88 When pressed, the push component 87 It may even be prevented from rotating in the direction of screw rotation. Because of this configuration, even if the fixing screw shaft 85 as it is rotated, the force of movement of the fixing screw shaft 85 not attached to the push-fit component 87 in the direction of rotation. Therefore, the pressed component 87 do not rotate and avoid any positional displacement of the connecting rod 81 ( 82b ), which would result from the force transmitted in the direction of rotation, can be prevented by this, which makes it possible to use the parallel guide rails 81 ( 82) to position precisely.

[0105] The embodiments described above can be further modified without deviating from the scope of protection of the present teachings. In the embodiment described above, the ruler fixing device 80 be configured so that the pressed component 87 through the fixing screw shaft 85 by means of the ball bearing 86 , which serves as the friction-reducing component, is rotatably mounted. However, instead of the ball bearing, 86 Alternatively, a bearing made of synthetic resin with a low coefficient of friction, or a sliding bearing, such as a bearing metal made of oil-impregnated metal, can be used. Furthermore, the pressed component can 87 Alternatively, it can also be configured to pass directly through the lower part of the fixing screw shaft. 85It is mounted instead of a ball bearing. In this case, it is desirable to apply a lubricant, such as grease, etc., within the inner circumferential hole of the pressed component. 87 to reduce friction.

[0106] Furthermore, in configurations where lubricants such as grease are used, these can be applied to the tip end of the actuating part. 88 (the tip end of the fixing screw shaft) 85 ) and / or be applied to the upper surface of the connecting rod. According to such a configuration, when the lubricant is present, the transmission of a rotational force, instead of a downward force, from the fixing screw shaft to the friction-reducing component caused by the rotation of the actuating component can be reduced, thus limiting damage and / or positional displacement of the connecting rod.

[0107] Furthermore, in the embodiment described above, the portable miter saw can be used as the cutting device. 1 can be described as the portable machining device. However, the ruler fixing device described above can be used 80 This also applies to a router used for milling, a jigsaw used for cutting material by moving the cutting blade back and forth in the up-down direction, and other types of cutting devices.

[0108] It is explicitly emphasized that all features disclosed in the description and / or the claims are to be considered separate and independent of one another for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, irrespective of the combinations of features in the embodiments and / or the claims. It is explicitly stated that all range specifications or specifications of groups of units disclose every possible intermediate value or subgroup of units for the purposes of the original disclosure as well as for the purpose of limiting the claimed invention, in particular also as a boundary of a range specification. QUOTES INCLUDED IN THE DESCRIPTION

[0109] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0110] JP 2006-159786 [0003, 0004, 0079, 0080] JP 2013-248740 [0003, 0004, 0080] JP 2005-349699

[0059] JP 2006-116815

[0092] JP 2006-26886

[0101] JP 2015-136873

[0101] JP 2006-289869

[0101] JP 2001-315075

[0101]

Claims

[1] Processing machine ( 1 ), which is a cutting blade ( 22 ) for cutting a workpiece (W), with a parallel guide ruler ( 81 ; 82 ), which is on the processing machine ( 1 ) is attached, with the parallel guide ruler ( 81 ; 82 ) a connecting rod ( 81b ; 82b ) has and is configured to cut the blade ( 22 ) the processing machine ( 1 ) in relation to the workpiece (W), a ruler fixing device ( 80 ), which includes a rotatable actuating component ( 88 ) exhibits, in which the connecting rod ( 81b ; 82b ) by a kinetic force generated by rotation of the actuating component ( 88 ) is caused by being pressed, so that a position of the parallel guide rail ( 81 ; 82 ) is fixed, and a friction reduction component (87 ), which is between the actuating component ( 88 ) and the connecting rod ( 81b ; 82b ) is arranged. [2] Machining device ( 1 ), with a device main body ( 20 ), which is a cutting blade ( 22 ) for cutting a workpiece (W), a base ( 10 ), which comprise the main body of the device ( 20 ) in relation to the workpiece (W), and a tool fixing device ( 120 ) to secure an additional tool ( 110 ) at the base, where the tool fixing device ( 120 ) a rotatable actuating component ( 88 ) shows, the additional tool ( 110 ) a connecting rod ( 111 ) shows, the connecting rod ( 111 ) by a kinetic force generated by rotation of the actuating component ( 88) is caused by pressing, so that a position of the additional tool ( 110 ) at the base ( 10 ) is fixed, and a friction-reducing component ( 87 ) between the actuating component ( 88 ) and the connecting rod ( 111 ) is arranged. [3] Machining device ( 1 ) according to claim 2, wherein an adapter for a long guide ruler ( 110 ) as the additional tool ( 110 ) at the base ( 10 ) is fixed. [4] Machining device ( 1 ) according to claim 1, 2 or 3, in which the friction reduction component ( 87 ) a pressed component ( 87 ) exhibits, which in relation to the actuating component ( 88 ) is rotatable, and the press component ( 87 ) is configured to be in contact with the connecting rod ( 81b ; 82b ; 111 ) to press the connecting rod ( 81b ;82b ; 111 ) is brought. [5] Machining device ( 1 ) according to claim 4, wherein the press component ( 87 ) through the actuating component ( 88 ) by means of a ball bearing ( 86 ) is rotatably mounted. [6] Machining device ( 1 ) according to claim 4 or 5, wherein there is friction between the pressure component ( 87 ) and the connecting rod ( 81b ; 82b ) is configured so that it is larger than between the pressed component ( 87 ) and the actuating component ( 88 ) is. [7] Machining device ( 1 ) according to one of claims 4 to 6, wherein the press component ( 87 ) is made of synthetic resin.

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