WO1998043794A1 - Scie circulaire manuelle - Google Patents

Scie circulaire manuelle Download PDF

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Publication number
WO1998043794A1
WO1998043794A1 PCT/JP1998/001351 JP9801351W WO9843794A1 WO 1998043794 A1 WO1998043794 A1 WO 1998043794A1 JP 9801351 W JP9801351 W JP 9801351W WO 9843794 A1 WO9843794 A1 WO 9843794A1
Authority
WO
WIPO (PCT)
Prior art keywords
dust
cutter
cutter blade
cover
hand
Prior art date
Application number
PCT/JP1998/001351
Other languages
English (en)
Japanese (ja)
Inventor
Katsunori Komura
Masaru Tsujimura
Eiji Tanaka
Original Assignee
Koumu Co., Ltd.
Meiwa Mfg. Co., Ltd.
Sankyo Diamond Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP7825197A external-priority patent/JPH10272622A/ja
Priority claimed from JP35041997A external-priority patent/JPH11179722A/ja
Priority claimed from JP1998000294U external-priority patent/JP3051027U/ja
Application filed by Koumu Co., Ltd., Meiwa Mfg. Co., Ltd., Sankyo Diamond Industrial Co., Ltd. filed Critical Koumu Co., Ltd.
Publication of WO1998043794A1 publication Critical patent/WO1998043794A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/006—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut

Definitions

  • the present invention relates to a hand cutter, and more particularly, to a technique for enhancing the dust-absorbing performance of a hand cutter.
  • Hand cutters used for hanging work are used to make cuts with a depth of about several centimeters on concrete and stone surfaces, etc., at the boundaries of the suspension, and after making such cuts, Hanging work is being implemented.
  • the hand cutter shown in the figure has a motor 1, a gear box 2a at the tip of the motor 1, an output shaft 2 whose rotation direction has been changed by 90 degrees by the gear box 2a, and a detachable attachment / detachment to the output shaft 2.
  • a cutter blade 3 which is connected to the shaft as much as possible; an exhaust fan 6 for dust suction which is connected to the output shaft 2 via a pair of pulleys 4 and a belt 5 at the rear side of the cutter blade 3; From the upper side to the rear side, it is composed of a blade cover 7 surrounding the periphery of the blade cover 7 and a fan casing 8 integrated with the rear part of the blade cover 7 and accommodating the exhaust fan 6.
  • the bottom opening of the fan casing 8 is used as a dust suction port 8a, and the cutter blade 3 is rotated while cutting the bottom surface against the surface of the workpiece W, as shown by the arrow. Dust blown backward is collected by suction at the dust inlet 8 Is done.
  • an exhaust pipe 8b is protrudingly provided on the rear side of the fan casing 8.
  • the exhaust pipe 8b is connected to a dust suction hose (not shown), a dust collecting bag, etc., via a connection attachment 9, and is collected. Dust scattering to the outside is minimized.
  • Reference numeral 10 in the figure denotes a handle fixed on the cover 7 for supporting the cutter by hand, and 11 denotes an electric cord connected to the rear of the motor 1.
  • the actual size is about 3 thighs, and the depth is 3
  • a cutting groove W1 of about 5 mm is formed.
  • the present invention has been made to solve the above problems, and an object thereof is to provide a hand cutter in which the addition of a simple mechanism improves the dust collection rate.
  • Another object of the present invention is to provide a hand cutter in which the dust suction hose and the dust bag are reliably and one-touchly connected to each other, and the dust bag is suspended and supported on the waist of an operator. Is to do. Disclosure of the invention
  • the present invention provides a cutter blade that rotates in connection with a motor, An exhaust fan that is disposed at the rear side of the blade, rotates in connection with the exhaust fan, and sucks dust generated during the cutting operation of the cutter blade, and a fan casing containing the exhaust fan.
  • a hand cutter provided with: a vertically extending rearward side of the dust suction port of the fan casing so as to be collinear with the power cutter blade and protruding downward, and fitted into a cutting groove of the cutter blade.
  • the rear scattering prevention material is provided.
  • the rear scatter prevention member has a steering function for maintaining straightness in the cutting direction by fitting into the cutting groove.
  • the rear scatter prevention member is constituted by a flat plate that is swingably supported, and is attached via panel means for urging the plate to return to the vertical position when the plate swings. Can be.
  • guide ports can be provided on both sides of the installation surface of the force cutter blade for the workpiece.
  • an outer cover is provided on the side surface of the blade cover covering the periphery thereof. Attached in a mating manner, and a packing colored differently from the cover can be interposed on the mating surface of the blade cover and the outer cover in correspondence with the position of the cutter blade.
  • the rear scatter prevention member includes a dust spring provided behind the power cutter blade, the dust spring includes a panel portion pivotally supported near a bottom surface of a dust suction port of the fan casing, It can be constituted by a line processing panel which is formed in a loop shape in a substantially oval shape at one end of the panel portion and is inserted into a cutting groove of the power cutter blade by the biasing force of the panel portion.
  • the dust that tends to flow backward is rebounded by the dust spring located in the cutting groove and is sucked into the suction port of the fan casing, so that the dust collection rate can be improved.
  • the dust spring also has a steering function for maintaining the straightness in the cutting direction, similarly to the plate.
  • stopper means may be provided for holding the wire processing panel at a position above the lower surface of the cutter blade against the urging force of the panel portion.
  • the stop means may include stop means for removing the dust spring from the dust spring in a state where the dust spring is in contact with the cutting surface.
  • guide rollers are provided on both sides of the installation surface of the cover that covers the periphery of the cutter blade with respect to the workpiece, and a rear support plate that is in contact with the cutting surface is rotatably provided on the rear bottom surface of the fan casing, A required gap can be formed between the bottom surface of the fan casing and the cutting surface by the guide roller and the rear support plate.
  • a front slide cover that is urged to rotate forward and covers the exposed portion of the power blade from the cover can be provided inside the cover in the present invention.
  • the exposed portion of the cutter blade is covered with the front slide cover, so that safety during work can be sufficiently ensured.
  • the cutting state can be checked from the outside while ensuring safety.
  • the front slide cover has a horizontally extending protrusion at the end thereof, and a V-groove for a cutting guide connected to the packing is provided on an upper surface of the front cover including the protrusion.
  • the V-groove provided in the foremost protrusion can be aligned with the cutting mark line while looking from above, so that more accurate cutting can be performed. become.
  • dust holder packings that are in sliding contact with the side surfaces of the cutter blade can be provided at both ends of the front slide cover.
  • a check valve that opens toward the discharge side by the exhaust air pressure can be provided at the discharge port of the fan casing.
  • the present invention provides a cutter blade that rotates in connection with a motor, and a cutter blade that is disposed on a rear side of the cutter blade and rotates in connection with the cutter blade, and that is generated by a cutting operation of the cutter blade.
  • a hand cutter body including a dust suction exhaust fan for sucking air, a fan casing accommodating the exhaust fan, one end connected to the fan casing, and a flexible end connected to the dust bag suction port at the other end.
  • a connection attachment comprising a double-coiled ring panel that fits around the insertion end of the dust suction hose with respect to the dust suction port of the dust bag and connects the both.
  • connection attachment consisting of a double coil-shaped ring panel that is fitted around the insertion end of the dust suction hose to the dust suction port of the dust bag and that connects the two is provided.
  • the connection between the hose and the dust bag can be made by the spring force.
  • pinch portions for expanding the ring panel can be extended at both ends of the panel body.
  • the diameter of the panel is increased by tightening the pinch portion with a finger, and the panel can be separated from the outer periphery of the mounting portion of the panel, and can be attached and removed with one touch.
  • Each of the pinch portions is folded back into a u-shape, and the folded end portion can be inserted into an operator's band, and can be used as a hanging support for the dust bag.
  • the connection portion between the dust suction hose and the dust bag can be attached to the body side portion of the operator's waist, and thereby attachment can be made without obstructing the air flow.
  • FIG. 1 is a side view showing a first embodiment of a hand cutter according to the present invention
  • FIG. 2 is a front view including a partially enlarged portion of FIG.
  • FIG. 3 is a side view showing a second embodiment of the hand cutter according to the present invention
  • FIG. 4 is a front view of FIG.
  • FIG. 5 is an enlarged view of the front slide cover of FIG. 3
  • FIG. 6 is an enlarged view of a portion A of FIG. 3
  • FIG. 7 is a sixth view showing each height position of the dust spring.
  • FIG. 3 is a sectional view taken along line BB of FIG.
  • FIG. 8 is an enlarged view showing another form of the dust spring
  • FIG. 9 is an enlarged view showing still another form of the dust spring.
  • FIG. 10 is an overall view of a use form showing a third embodiment of the hand cutter according to the present invention
  • FIG. 11 is a side view showing an enlarged part A of FIG. 10.
  • FIG. 12 is an exploded perspective view showing the mounting relationship between the hose and the dust bag, which is an enlarged view of part B of FIG. 10.
  • FIG. 13 is a plan view of the attachment used for the mounting. And a side view.
  • FIG. 14 is a side view showing an example of a conventional hand cutter. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 and 2 show a first embodiment of a hand cutter according to the present invention.
  • the hand cutter shown in the figure is an electric type, and in each figure, the same or corresponding parts are denoted by the same reference numerals, and differ only in different members or newly added members. The description is given with reference numerals.
  • the hand cutter shown in the figure is provided with a motor 1 and a gearbox 2a at the tip of the motor 1, and the output shaft 2 whose rotation direction is changed by 90 degrees by the gearbox 2a, and is detachable from the output shaft 2.
  • a cutter blade 3 connected to the cutter blade 3 and an exhaust fan 6 for dust suction at the rear side of the cutter blade 3 and connected to the output shaft 2 via a pair of pulleys 4 and a belt 5; and an upper portion of the cutter blade 3.
  • From the side to the rear side it is composed of a blade cover 7 surrounding the periphery thereof, and a fan casing 8 integrated with the rear part of the blade cover 7 and accommodating the exhaust fan 6.
  • An exhaust pipe 8 b protrudes from the rear side of the fan casing 8, and a dust suction hose, a dust collection bag, and the like (not shown) are connected to the exhaust pipe 8 b via a connection attachment 9.
  • a handle 10 is fixed to the upper end side of the blade cover 7, and an electric cord 11 is connected to the rear of the motor 1.
  • Such a basic shape and configuration are the same as those of the conventional hand cutter described above. It is almost the same.
  • a flat plate 12 is provided as a rearward scattering prevention member.
  • the plate 12 is disposed at the rear of the dust suction port 8a of the fan casing 8 at the same linear position as the cutter blade 3 and has a thickness substantially equal to the thickness of the cutter blade 3 and a height substantially equal to the cutting depth. Have.
  • the side surface of the plate 12 for preventing rearward scattering has an oval flat cam shape with a greatly rounded lower part, and the upper end is pivotally pivoted to the lower part of the fan casing 8 via a pin 14. It is supported and can swing in the same plane as the cutter blade 3.
  • the backscatter prevention plate 12 is always attached to the vertical position as shown by the solid line in FIG. 1 by the panel force of the winding panel 16 arranged around the pin 14. As shown by the broken line in Fig. 1 due to the force and the interference with the workpiece W, it turns upward at the rear side and tilts. Return to the hanging position by 16.
  • the guide roller 18 has a guide function for preventing a left and right inclination during cutting.
  • two outer covers 20 are attached to the side surface of the blade cover 7 so as to prevent dust from being scattered to the outer side surface.
  • a portion corresponding to the position where the cutter blade 3 is arranged is, as shown in an enlarged part of FIG.
  • This red packing 22 is used as a cutting guide by aligning the red packing 22 with the cutting mark line drawn on the workpiece W.
  • the rear scattering prevention plate 12 is wound by the winding panel 1 by the time the dust suction port 8a lands on the surface of the workpiece W. Pile at the panel pressure of 6 and incline backward to prevent interference with the surface.
  • the plate 12 When the cutting groove W1 is formed to some extent, and after a certain depth of cutting starts, the plate 12 returns to the vertical position due to the panel pressure, and fits into the cut cutting groove W1, and almost the cutting depth Then, the rear part of the cutting groove W1 is closed, and thereafter, the same posture is maintained until almost the target cutting position.
  • the left and right guide rollers 18 are brought into contact with the surface of the workpiece W on the left and right of the cutting groove W1 to perform the work, so that smooth movement can be performed and the left and right inclination Is also regulated, and stable cutting work can be performed in both the traveling direction and the vertical direction.
  • FIG. 3 to 9 show a second embodiment of the hand cutter according to the present invention:
  • the same reference numerals are given to the same or corresponding parts as in the prior art, and different members, Alternatively, a description will be given using a different reference numeral only for a newly added member.
  • the hand cutter shown in the figure has a motor 1, an output shaft 2 that rotates 90 degrees in a gear box 2a provided at the end of the motor 1 and rotates, and a detachably connected shaft to the output shaft 2.
  • a housing 8 accommodating an exhaust fan 6.
  • An opening at the bottom of the fan casing 8 is a dust suction port 8a, and an exhaust pipe 8b is protruded at a rear portion thereof.
  • a dust suction hose (not shown) is connected to the exhaust pipe 8b through a connection attachment 9. Connect to a dust bag.
  • the basic shape and configuration of such a hand cutter are almost similar to conventional ones.
  • the side handle 120 disposed on the blade cover 7 is fixed so that it can be mounted and changed both vertically and horizontally.
  • a trigger handle 122 is provided at the rear of the motor 1, and a trigger switch 122 is arranged at the bottom of the trigger handle.An electric cord 111 is connected to the rear end. It has a shape that improves use and self-help.
  • a red packing 1 2 4 having a thickness of about 2 mm is provided corresponding to a position corresponding to the position where the cutter blade 3 is disposed.
  • the front sides of the covers 7, 1 23 are substantially perpendicular to the workpiece W at the cutting position of the workpiece W, and the front of the cutter
  • the force which causes the blade 3 to protrude is provided inside the cover 7, 123, on the inside of which is a front slide which is coaxial with the cover and is urged to rotate forward by a winding spring or the like (not shown).
  • a cover 125 is provided, and the exposed portion of the cutter blade 3 protruding forward from the covers 7 and 123 is further covered to ensure safety during work.
  • the front slide cover 125 is made of a transparent resin molded body such as acrylic so that the rotation of the power blade 3 can be easily observed from the outside, and is further connected to the packing 124 at the center in the thickness direction.
  • a V-groove (colored V-groove) 125 a serving as the above-mentioned cutting guide is formed.
  • a protrusion 125b extending horizontally is formed.
  • the lower surface of the protrusion 125b is connected to the lower surface of the outer cover 123. They are almost the same.
  • V-grooves (colored V-grooves) 125a connected to the packing 124 are also provided on the protrusions 125b.
  • a protrusion 125b When such a protrusion 125b is provided, when a worker performs a cutting operation, the V-groove 125a provided in the foremost protrusion 125b is viewed from above and a cutting mark line is displayed. , So that more accurate cutting is possible.
  • FIG. 5 is an enlarged view of the front slide cover 125.
  • the dust holder formed of rubber or soft synthetic resin is provided at both ends of the front slide cover 125. De-packing 1 2 5 c force Each is fixed.
  • the dust hold packing 125c may be fixed to one of the openings.
  • Each dust holder packing 125c has a slit 125d through which the cutter blade 3 can be inserted.
  • the width of this slit 125 d is almost the same as or slightly smaller than the thickness of the power blade 3, and when the cutter blade 3 passes through the slit 125 d, the width of the slit 125 d Both ends are in sliding contact with the cutter blade 3 to remove dust adhering to both side surfaces thereof.
  • a pair of guide rollers 126 rolling in contact with the installation surface for the workpiece W is arranged on the front outer side of the outer cover 123 and the gear box 2a.
  • a rear support plate 128 that is swingably fixed via a bracket 127 and that is in contact with the installation surface is disposed on a rear bottom surface of the fan casing 8.
  • the guide rollers 1 26 and the rear support plate 1 28 have a vertical guide function to prevent the left tilt during cutting, as well as the bottom surface of the cover 7, 1 2 3 and the fan casing 8 and the workpiece.
  • the actual size of the gap D is about 4 since but a highest suction power, preferably les, c
  • a dust spring 129 as a rear scatter prevention member arranged in the same straight line position as the cutter blade 3.
  • the dust springs 129 have a thickness substantially equal to the thickness of the cutter blade 3 and a height substantially equal to the cutting depth.
  • the dust springs 129 are springs wound in a coil shape.
  • a part 130 and a wire processing panel 130b formed by extending one end of the blade part 130 and forming a substantially elliptical shape.
  • the panel portion 130 of the dust spring 129 is mounted on the outer periphery of a support shaft 131 which is disposed through the lower side surface of the housing 8.
  • the free end on the tip side of the wire spring 130 b is rounded in a semicircular shape, and in a rotation position, a rotation restricting pin 13 disposed in parallel with the rear portion of the support shaft 130.
  • a stopper pin 13 3 is disposed on the rear side of the rotation regulating pin 13 2, and the inside of the loop of the wire spring 130 b of the dust spring 12 9 is attached to the stopper pin 13 3.
  • the stopper pin 1333 is axially inserted through the side surface of the fan casing 8, and is stopped by the compression coil panel 134 for stopping the stopper, which is interposed on the outer periphery of the fan casing 8 so as to protrude in the side projection direction.
  • the spring pressure of this spring 13 4 is set to be lower than the panel force of the dust spring 12 9, and the side protruding end is formed in a push button shape.
  • the push button section 133 a can be manually pressed.
  • the work W is cut by the cutter blade 3, and when the cut depth increases, the lower end of the line processing panel 130b contacts the upper surface of the work W as shown in (b). And can be lifted slightly.
  • the wire processing panel 130b comes off the stud pin 133, the wire processing panel 130b is pressed against the cutting groove W1 by the urging force of the panel portion 130, and thereafter, as shown in (c).
  • the wire springs 130b of the dust springs 129 enter the grooves along the groove depths of the cutting grooves W1 until they engage with the restriction pins 132, At the same time, it descends to the regulation position where it engages with the regulation pin 13, and is held at the position of 3 following the power cutter blade 3.
  • the dust that has not been rebounded on the front side can be further rebounded on the rear side to further increase the collection rate.
  • the dust springs 129/9 are restricted from moving in the left / right direction when the wire processing panel 130b penetrates into the cutting groove W1, a steering function for maintaining straightness is also provided.
  • the hand cutter may be moved forward or backward or the cutting direction may be changed depending on the processing state.
  • the dust springs 12 29 may interfere in the groove, and may rather obstruct it. In such a case, as shown in Fig.
  • the dust spring 1229 is manually rotated to the highest position ⁇ and lifted, and in this state, the push button 13 3a is pressed down.
  • the stop pin 13 is cross-positioned below the wire-working spring 13 b and then the dust spring 12 is released, the dust spring 12 9 remains locked at the uppermost position 2. Inconvenience in the processing form can be avoided.
  • a check valve 135 made of a rubber plate or the like for preventing backflow of dust is hinged to one end of a discharge surface of the exhaust pipe 8b, and covers the discharge surface.
  • the check valve 135 opens due to the exhaust air pressure, and blows the dust inside while expanding the inside of the dust bag.
  • the inside of the dust collecting bag is kept at a high pressure. In this state, when the motor is stopped, the dust tends to flow back into the fan casing 8 due to the negative pressure.
  • FIGS. 8 and 9 show an example of the shape change of the dust spring of the second embodiment.
  • the dust spring 140 shown in FIG. 8 is the front side of the wire machining spring 140b.
  • a step 140a is formed at the uppermost position ⁇ ⁇ , and the stopper pin 133 is crossed at the position of the step 140a when the stopper 140a is locked at the uppermost position 2. Is the same.
  • the dust spring 150 shown in FIG. 9 is formed so that the joint position between the wire processing panel 13 Ob and the panel portion 130 is formed obliquely toward the lower portion, and the inclined portion 150 a
  • the second embodiment is the same as the second embodiment except that the width of the width of the substantially oval loop is widened. C the thus formed dust spring 1 4 0, 1 5 same effect also in the second embodiment with reference to 0 is obtained
  • FIG. 10 to FIG. 13 show a third embodiment of the hand cutter according to the present invention.
  • Fig. 10 shows the case where the worker [i] is making a groove on the vertical wall.
  • the worker [ii] supports the hand cutter body 201 with both hands while holding the concrete wall.
  • a groove is formed in the workpiece W.
  • the other end of the dust-absorbing hose 202 is attached to a dust bag 203. They are linked via 204.
  • the attachment 204 which will be described later in detail, can also be used for the function of connecting the two and fixing the dust bag 203 to one side of the waist of the worker [A].
  • the hand cutter main body 201 has a motor 210 and an output that changes direction by 90 degrees and rotates in a gear box (not shown) provided at the end of the motor 210.
  • An exhaust fan 2 14 for dust suction connected via a pulley and a belt, and a blade cover 2 17 covering the periphery of the cutter blade 2 13 integrated with the rear, and housed the above-described dust suction fan 2 16
  • a fan casing 218 is provided.
  • the fan casing 2 18 has a dust opening 2 18 a at the bottom opening, and an exhaust pipe 2 18 b protruding from the rear side, to which the dust is absorbed via a connection attachment 2 19. Connected to one end of hose 202.
  • the main body 201 has a side handle 220 mounted on the blade cover 217 fixed in both vertical and horizontal directions so as to be changeable, and is integrally extended to the rear of the motor 210.
  • Trigger handle 2 2 1 is provided, trigger switch 2 2 2 is arranged at the lower part, and electric cord 2 1 1 is connected at the rear end, improving the use and operability of operator [I] in two-handed operation The shape has been made.
  • the front side of the cover 2 17 is substantially perpendicular to the workpiece W at the cutting position of the workpiece W, and the cutter blade 203 protrudes from the front side.
  • a front slide cover 2 25 which is coaxial with the cover 2 and is urged to rotate forward by a winding spring or the like (not shown) is disposed.
  • a pair of guide rollers 226 that roll in contact with the installation surface for the workpiece W is disposed on the front outside of the cover 217 and the gearbox on the rear surface thereof.
  • each guide roller which is swingably fixed to the rear bottom surface of the fan casing 218 via a bracket 227 and has a rear support plate 228 in contact with the installation surface, is provided.
  • the 2 26 and the rear support plate 2 28 provide a fan clearance by forming a predetermined gap D with the workpiece W. While ensuring the intake air volume of 2 16, dust is prevented from escaping to the side.
  • Reference numeral 229 denotes a dust spring for preventing rearward scattering, which is arranged near the bottom surface of the dust suction port 218a of the fan casing 218, and repels dust which is scattered rearward by cutting. It has a function to send the dust to the dust suction port 218 a of the fan casing 218.
  • reference numeral 230 denotes a check valve made of rubber or the like provided at an outlet end of the exhaust pipe 218 b, and a dust knock due to the pressure in the dust knock 230 accompanying the motor stop. It has a backflow prevention function.
  • the hose 202 is a flexible hose made of vinyl chloride or the like in a bellows shape as shown in Fig. 12, and the insertion ends 202a at both ends are made of a somewhat hard PVC pipe.
  • the material is elastically deformed by the outer peripheral pressure, but retains its shape.
  • the dust bag 203 is a flexible bag having a filter cloth formed by sewing and having an open upper end, which swells substantially along the thigh of the worker [a]. As shown in FIG.
  • the upper end side dust suction port 203 a is narrowed down in a drawstring shape and fitted to the outer periphery of the insertion end 202 a of the hose 202.
  • the attachment 204 used to connect the two is formed by winding a wire panel in a double coil shape, and the inner diameter of the wire panel is the insertion end 202 a of the hose 202. It consists of a ring spring 204 a set to a diameter enough to bite into the outer circumference, and a pair of pinch portions 204 b formed by bending both ends of the ring spring 204 a into a U-shape. By pinching b with a finger and pressing it, the diameter is expanded from the state shown in the figure, enabling attachment and detachment to the outer periphery of the connecting portion.
  • the ring spring 204a is fitted to the outer periphery of the dust suction port 203a, and the pinch portions 204b are pressed with fingers in this state.
  • the connecting end 202a can be fitted to the inner periphery of the dust inlet 203a.
  • the pinch portion 204b is released in the fitted state, the ring spring 204a is reduced in diameter, and the two are firmly connected with one touch. When both are to be separated, they can be separated by one touch in the reverse order.
  • each pinch portion 204 b also serves as a locking device for the band 205 worn by the worker [A], and as shown in the figure, both pinch portions 2 If the U-shaped part of 04a is inserted upward from the lower edge of the band 205, it will be inserted between the inside of the band 205 and pants (not shown), and will be engaged with the band 205. As a result, the dust bag 203 is mounted in a state of hanging on the waist of the worker [A].
  • the band 205 may be locked by inserting it into the pinch portion 204 b.
  • the hose 202 is connected to only the attachment 204.
  • the dust bag 203 was connected, the dust bag 203 is a sewn product, so a string or the like is attached by sewing to the outer periphery of the dust inlet 203 a, and the outer periphery of the connected portion It is good to tie it with this string.
  • the connecting portion between the dust bag 203 and the hose 202 can be securely and firmly connected by the ring spring 204 a of the attachment 204.
  • the pinch portion 204b of the attachment 204 allows the ring panel 204a to be freely expanded and reduced in diameter, and allows one-touch attachment and detachment.
  • the dust bag 203 can be mounted in a suspended state around the waist of the worker, so that it does not disturb the work, and this part is hung. As a result, the hose 202 and the dust bag 203 can be supported without being crushed.
  • the hand cutter according to the present invention is particularly suitable for indoor hanging work in which dust is prevented from scattering when forming a cut by cutting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Sawing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne une scie circulaire manuelle comportant une plaquette (12) arrière anti-dispersion, dont l'épaisseur est sensiblement égale à celle d'une lame (3) et la hauteur, sensiblement égale à la profondeur de coupe et qui est placée dans le même axe que la lame (3), derrière un orifice d'aspiration (8a) de poussière d'un boîtier (8) de ventilateur, dans lequel est logé un ventilateur aspirant (6) entraîné en rotation par la rotation de la lame (3), grâce à un agencement de couplage. La plaquette (12) arrière anti-dispersion est fixée pivotante à l'extrémité supérieure de la scie par la partie inférieure du boîtier (8) de ventilateur, de manière qu'elle puisse pivoter autour d'une tige (14). La plaquette est normalement poussée dans une direction verticale, de façon à faire saillie, sous l'action de la tension d'un ressort hélicoïdal (16) placé autour de la tige (14), et incliné vers l'arrière au contact d'une surface (W) à couper.
PCT/JP1998/001351 1997-03-28 1998-03-25 Scie circulaire manuelle WO1998043794A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP7825197A JPH10272622A (ja) 1997-03-28 1997-03-28 ハンドカッター
JP9/78251 1997-03-28
JP9/350419 1997-12-19
JP35041997A JPH11179722A (ja) 1997-12-19 1997-12-19 ハンドカッター
JP10/294U 1998-01-30
JP1998000294U JP3051027U (ja) 1998-01-30 1998-01-30 ハンドカッター

Publications (1)

Publication Number Publication Date
WO1998043794A1 true WO1998043794A1 (fr) 1998-10-08

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ID=27274393

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2373746A (en) * 2001-02-14 2002-10-02 Robert Henry Williams Cutting machine
WO2007004527A1 (fr) * 2005-06-30 2007-01-11 Hitachi Koki Co., Ltd. Couvercle de collecte de poussieres fixable a un dispositif de coupe
WO2012045399A1 (fr) * 2010-10-05 2012-04-12 Wacker Neuson Produktion GmbH & Co. KG Tronçonneuse à meule à aspiration de poussière
WO2018084771A1 (fr) * 2016-11-03 2018-05-11 Husqvarna Ab Outil entraîné par moteur et comprenant un générateur relié à un moteur de ventilateur
CN109483626A (zh) * 2018-11-27 2019-03-19 滁州市朝友精密制造有限公司 一种操作台面的开槽装置
WO2020009625A1 (fr) 2018-07-02 2020-01-09 Husqvarna Ab Agencement de protection destiné à un outil électrique
EP3535083A4 (fr) * 2016-11-03 2020-06-24 Husqvarna AB Agencement d'élimination de poussière pour un outil entraîné par moteur
CN114683567A (zh) * 2022-04-01 2022-07-01 赵学利 一种胶带及其生产工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156024A (fr) * 1974-09-16 1976-05-17 Inobeishon Ando Tekunikaru Dev
JPS58166406U (ja) * 1982-04-30 1983-11-05 松下電工株式会社 電動丸鋸機
JPS6171415U (fr) * 1984-10-16 1986-05-15
JPS61133309U (fr) * 1985-02-07 1986-08-20
JP3036674U (ja) * 1996-10-09 1997-05-02 株式会社工務 カッター
JP3037343U (ja) * 1996-10-30 1997-05-16 株式会社工務 エンジンカッター

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156024A (fr) * 1974-09-16 1976-05-17 Inobeishon Ando Tekunikaru Dev
JPS58166406U (ja) * 1982-04-30 1983-11-05 松下電工株式会社 電動丸鋸機
JPS6171415U (fr) * 1984-10-16 1986-05-15
JPS61133309U (fr) * 1985-02-07 1986-08-20
JP3036674U (ja) * 1996-10-09 1997-05-02 株式会社工務 カッター
JP3037343U (ja) * 1996-10-30 1997-05-16 株式会社工務 エンジンカッター

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2373746A (en) * 2001-02-14 2002-10-02 Robert Henry Williams Cutting machine
WO2007004527A1 (fr) * 2005-06-30 2007-01-11 Hitachi Koki Co., Ltd. Couvercle de collecte de poussieres fixable a un dispositif de coupe
US8371034B2 (en) 2005-06-30 2013-02-12 Hitachi Koki Co., Ltd. Dust collection cover attachable to cutter
WO2012045399A1 (fr) * 2010-10-05 2012-04-12 Wacker Neuson Produktion GmbH & Co. KG Tronçonneuse à meule à aspiration de poussière
WO2018084771A1 (fr) * 2016-11-03 2018-05-11 Husqvarna Ab Outil entraîné par moteur et comprenant un générateur relié à un moteur de ventilateur
EP3535083A4 (fr) * 2016-11-03 2020-06-24 Husqvarna AB Agencement d'élimination de poussière pour un outil entraîné par moteur
US11059114B2 (en) 2016-11-03 2021-07-13 Husqvarna Ab Dust removal arrangement for an engine-driven tool
US11400531B2 (en) 2016-11-03 2022-08-02 Husqvarna Ab Dust removal arrangement for an engine-driven tool
WO2020009625A1 (fr) 2018-07-02 2020-01-09 Husqvarna Ab Agencement de protection destiné à un outil électrique
EP3787825A4 (fr) * 2018-07-02 2021-12-08 Husqvarna Ab Agencement de protection destiné à un outil électrique
CN109483626A (zh) * 2018-11-27 2019-03-19 滁州市朝友精密制造有限公司 一种操作台面的开槽装置
CN114683567A (zh) * 2022-04-01 2022-07-01 赵学利 一种胶带及其生产工艺

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