WO2012005225A1 - 集塵装置、および打撃工具 - Google Patents
集塵装置、および打撃工具 Download PDFInfo
- Publication number
- WO2012005225A1 WO2012005225A1 PCT/JP2011/065310 JP2011065310W WO2012005225A1 WO 2012005225 A1 WO2012005225 A1 WO 2012005225A1 JP 2011065310 W JP2011065310 W JP 2011065310W WO 2012005225 A1 WO2012005225 A1 WO 2012005225A1
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- WO
- WIPO (PCT)
- Prior art keywords
- dust
- hose
- dust collecting
- bit
- tool
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/34—Arrangements for removing chips out of the holes made; Chip- breaking arrangements attached to the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0071—Devices for removing chips dust collectors for hand tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/04—Handles; Handle mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/30—Chip guiding or removal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Definitions
- the present invention relates to a dust collector for collecting dust generated by the impact tool, and an impact tool equipped with the dust collector.
- some conventional impact tools include a dust collector that collects dust generated during processing operations.
- a cylindrical hood is arranged so as to surround the tool bit, and dust generated by the processing operation is sucked from the opening at the front end of the hood and collected through a dust collecting hose.
- a dust collector configured to dust is disclosed.
- the operator When performing a machining operation with a striking tool, the operator always performs the machining operation while visually checking the tip position of the tool bit.
- the dust collector hood attached to the impact tool may reduce the visibility of the tool bit, and the dust collecting hose for transferring dust may interfere with the operation.
- the present invention has been made in view of the above, and an object of the present invention is to improve the visibility of a tool bit or a work area in a dust collector that collects dust generated by an impact tool.
- the dust generated by the impact tool is collected by being attached to an impact tool that linearly moves the tool bit attached to the tip region of the tool body in the long axis direction.
- a dust collector is constructed.
- the dust collector has a dust suction portion having a dust suction port at the tip and an outer shape formed in a non-uniform shape around the long axis of the tool bit.
- the “uneven shape around the long axis of the tool bit” refers to a shape other than a circle in which the outer shape of the wall forming the dust suction port is centered on the axis center of the tool bit.
- the outer shape of the dust collecting portion is formed in a non-uniform shape around the long axis of the tool bit, the bit tip position or working area is visually recognized through the dust collecting portion in the circumferential region. It is possible to set an easy-to-see area where the tool bit is exposed.
- the dust collecting portion is attached to the tool bit so that the position around the long axis of the tool bit can be changed.
- the dust collecting part is attached to the tool bit so that the position around the long axis of the tool bit can be changed. Therefore, when machining, when looking at the tip or working area of the bit over the dust collecting part
- the position of the dust collection unit can be determined in accordance with the position of the operator (the direction of the line of sight) so that an easy-to-see region of the dust collection unit is located in the viewing direction. Thereby, it becomes possible to perform a processing operation without impairing the visibility.
- the dust collecting device further includes a dust collecting hose connected to the dust collecting portion to transfer dust to the downstream side, and a hose holding portion for holding the dust collecting hose.
- the hose holding part is attached to the tool body so as to be relatively rotatable around the long axis of the tool bit, and the dust collecting hose held by the hose holding part is around the long axis of the tool bit together with the hose holding part. By rotating, the position of the dust collecting portion changes around the bit long axis.
- the position of the dust collecting hose held by the hose holding part and the dust collecting part connected to the dust collecting hose is changed by rotating the hose holding part around the long axis of the tool bit. Therefore, the workability can be improved by moving the dust collection hose to a position that does not interfere with the work while improving the visibility when the bit tip position or work area is visually recognized through the dust collection part.
- the dust collector has a rotating member attached to the tool body so as to be relatively rotatable about the long axis of the tool bit.
- maintenance part is attached with respect to the rotation member so that relative rotation is possible around the axis line which cross
- the direction of the dust collecting hose with respect to the long axis direction of the tool bit is made parallel or crossed, for example, by rotating the hose holding part relative to the axis line intersecting the long axis direction of the tool bit. It is possible to change the position of the dust collecting hose at any position where the dust collecting hose does not interfere with the work, and the workability is further improved.
- the dust collecting device further includes a dust collecting hose connected to the dust collecting portion to transfer dust to the downstream side, and a hose holding portion for holding the dust collecting hose.
- the hose holding part is attached to an auxiliary handle which is attached to the tool body and can change the attachment position about the long axis of the tool bit.
- assistant handle when changing the attachment position of an auxiliary
- the positions of the dust collecting hose and the dust collecting portion change around the bit long axis together with the auxiliary handle.
- the position change and the position change of the dust collecting hose and the dust collecting part can be performed at the same time, and the position changing work is not wasteful and rational.
- the dust collecting apparatus further includes a dust collecting hose connected to the dust collecting portion and transferring dust to the downstream side. Then, the tip of the dust collector is connected to the dust collector hose with the tool bit in between and the opposite side, and the connecting portion is separated from the tip of the bit and the opposite side is close to the tip of the bit. Is formed.
- the connecting portion side region with the dust collecting hose is formed into an inclined shape in which the connecting portion side with the dust collecting hose is separated from the bit tip.
- the tip end side of the tool bit when the tip end position or work area of the bit is viewed through is defined as an easy-to-see area where the tip end side is exposed. Thereby, visibility can be ensured.
- it further includes a dust collecting hose connected to the dust collecting portion and transferring dust to the downstream side.
- the passage connected to the dust collection hose from the dust suction port is partitioned into a plurality of partitions by the partition wall, and each channel cross-sectional area of the partitioned passage is set smaller than the minimum channel cross-sectional area of the dust collection hose. .
- the dust (fragment) exceeding the minimum flow path cross-sectional area of the dust collecting hose can be dammed by the partition wall. As a result, clogging of the dust collecting part can be prevented.
- an impact tool having the dust collecting device according to any one of claims 1 to 6 is configured.
- the impact tool provided with the dust collector which can perform a process operation without impairing visibility can be provided.
- FIG. 10 It is a front view explaining the attachment structure with respect to the main part of the electric hammer of the dust collector which concerns on the 2nd Embodiment of this invention, specifically, a hose holder. It is a side view similarly. It is an external view which shows the state by which the hose holder of the dust collector which concerns on the 3rd Embodiment of this invention was attached to the main-body part of the electric hammer via the side handle. It is a fragmentary sectional view which shows the attachment structure with respect to the side handle of a hose holder. It is A arrow directional view of FIG. It is A arrow directional view of FIG. 10, and shows the state which changed direction of the hose holder.
- the electric hammer 101 is generally detachable via a tool holder (not shown for the sake of convenience) to a main body portion 103 that forms an outline of the electric hammer 101 and a tip region (left side in the drawing) of the main body portion 103. And a hand grip 109 as a main handle gripped by a user connected to the opposite side of the hammer bit 119 of the main body 103.
- the main body 103 corresponds to the “tool main body” in the present invention
- the hammer bit 119 corresponds to the “tool bit” in the present invention.
- the hammer bit 119 is held in a state where relative reciprocation in the major axis direction is possible with respect to the tool holder via the chuck 108 and relative rotation in the circumferential direction is restricted.
- the hammer bit 119 side of the electric hammer 101 is referred to as the front, and the hand grip 109 side is referred to as the rear.
- the main body 103 is mainly composed of a housing 105 and a substantially cylindrical barrel 107 connected to the front of the housing 105.
- a driving motor (not shown) for convenience
- a crank mechanism as a motion converting mechanism for converting the rotational motion of the driving motor into a linear motion
- the hammer bit 119 are driven in the long axis direction by the crank mechanism.
- a striking element composed of a striker (batter) for striking the ball and an impact bolt (meson) for transmitting the strike of the striker to the hammer bit 119 is housed.
- a side handle 110 as an auxiliary handle is detachably attached to the barrel 107 of the main body 103.
- the hammer bit 119 is applied with a striking force in the major axis direction from the crank mechanism via the striking element. Performs a hammering operation in the long axis direction, and performs a machining operation (chipping operation) on a workpiece (for example, concrete).
- the dust collector 140 is attached to the electric hammer 101 and absorbs dust generated during processing on the workpiece.
- the dust collector 140 of this embodiment is roughly divided into a resin or rubber dust collecting hood 141 that collects dust, and a dust collecting hose that transfers dust collected in the dust collecting hood 141 to the downstream side. 146, a hose holder 147 that holds the dust collecting hose 146, and an attachment ring 199 for attaching the hose holder 147 to the barrel 107.
- the dust collection hood 141 corresponds to the “dust collection part” in the present invention
- the dust collection hose 146 corresponds to the “dust transfer part” in the present invention
- the hose holder 147 corresponds to the “hose holding part” in the present invention.
- the dust collection hood 141 surrounds the entire circumference of the hammer bit 119 around the major axis at a predetermined interval in the radial direction, and the tip (front end) is opened as a dust suction port 141a. It is a substantially cup-shaped member (substantially bottomed tubular member) having the inner space 141b. The bottom of the dust collecting hood 141 (on the opposite side of the dust suction port 141a) is formed adjacent to the through-hole 141c in the hammer bit long axis direction for attaching the sliding cylinder 143 and the through-hole 141c. Hose connection part 144.
- the sliding cylinder 143 is a guide member of the dust collection hood 141 in which a cylinder hole is formed that is slidably fitted to the shaft portion 119b of the hammer bit 119.
- the sliding cylinder 143 is detachably fitted to the through hole 141c of the dust collection hood 141.
- the dust collection hood 141 is disposed at a position where the dust suction port 141a is separated from the bit tip 119a of the hammer bit 119 by a predetermined distance by the sliding cylinder 143 being fitted into the hammer bit 119 from the tip side.
- the inner wall surface of the cylindrical hole of the sliding cylinder 143 is slidably engaged with the outer surface of the shaft portion of the hammer bit 119.
- the front end side of the hose connection portion 144 is opened as a dust inlet in the internal space 141b of the dust collection hood 141.
- the rear end side of the hose connection portion 144 protrudes rearward with a predetermined length so as to follow the outer shape (tapered cylindrical shape) of the chuck 108.
- the rear end side is opened as a dust outlet, and a dust collecting hose 146 is detachably fitted into the dust outlet and connected thereto.
- a partition wall 145 is provided on the front end side of the hose connection part 144 to partition the passage of the hose connection part 144 into a plurality of sections.
- the hose connection portion 144 is partitioned so that the flow path cross-sectional area of each passage 144 a defined by the partition wall 145 is smaller than the minimum flow path cross-sectional area of the dust collection hose 146. As a result, it is possible to prevent large lump-like dust (debris) from being blocked by the partition wall 145 and entering the dust collecting hose 146 to be clogged.
- the dust collection hood 141 is formed in an approximately oval (oval) shape when viewed from the front (viewed from the bit tip of the hammer bit 119).
- the tip end side (dust suction port 141 a side) of the dust collection hood 141 includes a connection portion side with the dust collection hose 146 and a side opposite to the connection portion side with the hammer bit 119 interposed therebetween.
- the connecting portion side is formed in an inclined shape so as to be separated from the bit tip 119a of the hammer bit 119 and the opposite side is close to the bit tip.
- the circumferential shape of the tip portion of the dust collecting hood 141 is inclined with respect to the major axis direction of the hammer bit 119 so that the hose connection portion 144 side is away from the bit tip 119a.
- visibility is improved by widening the exposed area of the hammer bit 119 when the bit tip 119a (processing area of the workpiece) is seen through the hose connection part 144 (viewed from the hose connection part 144 side).
- the dust sucked into the dust collection hood 141 is configured to easily flow to the hose connection portion 144.
- the above-described inclined shape corresponds to “a non-uniform shape around the long axis of the tool bit” in the present invention.
- the shape of the tip portion of the dust collection hood 141 is inclined with respect to the major axis direction of the hammer bit 119, whereby the hose connection portion 144 in the circumferential region of the dust collection hood 141.
- the area including the side is set as an area where the bit tip 119a (processing work area of the workpiece) is easily visible.
- the dust collection hose 146 is a rubber or resin tubular member including at least a part of the bellows-like portion 146 a, and one end (tip) is fitted into the dust outlet of the hose connection portion 144, thereby connecting to the dust collection hood 141. Is done.
- the dust collecting hose 146 extends in the major axis direction of the hammer bit 119 along the main body portion 103 of the electric hammer 101 and is held by the barrel 107 via a mounting ring 199 described later by a hose holder 147.
- the dust collection hose 146 is connected to a dust collector (not shown for convenience) at least during processing operations.
- the dust collector 140 of the present embodiment is configured such that the dust collecting hose 146 is held by the main body 103 and the dust collecting hood 141 is held by the hammer bit 119, and has a long axis relative to the electric hammer 101. It is held at two locations in the direction.
- the dust collection hose 146 is not limited to an aspect connected to a dust collector provided separately from the electric hammer 101.
- the electric hammer 101 includes a suction device including a motor and a dust collecting fan driven by the motor, or the dust collecting device itself is configured by a motor and a dust collecting fan driven by the motor. If a suction device is provided, the dust collection hose 146 is connected to these suction devices.
- the hose holder 147 includes a hose holding main body portion 148 that holds the dust collecting hose 146, and an attachment base portion 149 that is integrally formed in a projecting manner on the outer surface of the hose holding main body portion 148.
- the hose holding main body 148 is a substantially circular annular body having a hose attachment / detachment opening 148a, and the inner peripheral surface thereof is circumferentially engageable with the recess (valley) of the bellows-like portion 146a of the dust collecting hose 146.
- a plurality of extending rib-like protrusions 148b are formed.
- the opening width in the circumferential direction of the hose attachment / detachment opening 148a is slightly narrower than the hose diameter, and the hose holding body portion 148 passes through the hose attachment / detachment opening 148a in a state where the bellows-like portion 146a is deformed (crushed) into a substantially elliptical shape. It is possible to attach and detach.
- the dust collecting hose 146 held by the hose holding main body 148 is restricted (locked) in the axial direction of the dust collecting hose 146 by engaging the projection 148b with the concave portion of the bellows-like portion 146a.
- the hose holder 147 is attached to the barrel 107 via the attachment ring 199.
- the attachment ring 199 is attached to the outer surface of the barrel 107 via an O-ring 198 so as to be rotatable around the long axis of the hammer bit 119. Accordingly, the hose holder 147 attached to the attachment ring 199 can rotate around the long axis of the hammer bit 119 together with the attachment ring 199.
- the attachment ring 199 corresponds to the “rotating member” in the present invention.
- the mounting ring 199 has a spherical surface portion 199a protruding in a direction intersecting the major axis direction of the hammer bit 119 on a part of the outer peripheral surface.
- a spherical concave surface 149a formed on the attachment base 149 of the hose holding portion 147 is fitted to the spherical portion 199a.
- the hose holding portion 147 is rotated (swinged) around the axis line in the direction intersecting the long axis direction of the hammer bit 119 with respect to the mounting ring 199, thereby collecting the dust collecting hose.
- the major axis direction of 146 can be changed.
- the dust collector 140 is configured as described above.
- the electric hammer 101 is driven to cause the hammer bit 119 to perform a linear hammer operation, and It is possible to collect dust generated when a chipping operation is performed on a workpiece. That is, the dust generated by the electric hammer 101 is sucked into the dust collection hood 141 from the dust suction port 141a, and collected by the dust collector from the hose connection portion 144 of the dust collection hood 141 through the dust collection hose 146.
- the shape of the tip of the dust collecting hood 141 is formed in an inclined shape that is cut obliquely with respect to the major axis direction of the hammer bit 119, so that the shape around the major axis of the hammer bit 119 is not uniform.
- the hose connection part 144 side in the circumferential direction area of the dust collection hood 141 is set as an area where the position of the bit tip 119a (processing work area of the workpiece) is easily visible. For this reason, the operator can clearly recognize the work situation by the hammer bit 119 by visually recognizing the bit tip 191a or the work area from the hose connection part 144 side. That is, according to the present embodiment, it is possible to perform the chipping work without impairing the visibility of the hammer bit 119 or the work area.
- the hose connection portion 144 side of the dust collection hood 141 is on the line of sight, that is, the viewpoint (the position of the operator's eyes) and the work area.
- the viewpoint the position of the operator's eyes
- the work is performed so as to be positioned between the two, the visibility is improved by viewing the work area from the dust collection hood 141 side.
- the side near the bit tip 119a in the circumferential region of the dust collection hood 141 is placed below the hammer bit 119, so that the dust suction port 141a can easily receive the fragments scattered during the chipping operation.
- the hose holder 147 can be relatively rotated around the major axis of the barrel 107 (around the major axis of the hammer bit 119) together with the mounting ring 199. For this reason, the hose holder 147 is rotated around the barrel 107 together with the mounting ring 199 to be connected to the dust collection hose 146 and the dust collection hose 146 held by the hose holder 147 according to the position of the operator. The position of the collected dust collecting hood 141 can be changed. As a result, the dust collecting hose 146 can be moved to a position that does not interfere with the work while ensuring the visibility of the bit tip or work area.
- the hose holder 147 is connected to the attachment ring 199 by the spherical joint composed of the spherical surface portion 199a and the spherical concave surface 149a, so as shown in FIGS.
- the direction of the dust collecting hose 146 (not shown for convenience in FIGS. 5 and 6) with respect to the longitudinal direction of the hammer bit 119 is arbitrary, for example, parallel or crossed. Can be changed to Thereby, the dust collecting hose 146 can be moved to a position where it does not interfere with the work, and the chipping work can be performed.
- the hammer bit 119 includes not only a plurality of types having different lengths but also a plurality of types having different outer diameters of the shaft portion 119b.
- the sliding cylinder 143 is detachably fitted into the through hole 141c of the dust collection hood 141.
- a plurality of sliding cylinder parts 143 having cylinder holes with different inner diameters corresponding to the plurality of hammer bits 119 having different outer diameters of the shaft part 119b are prepared. Thereby, it can respond to the some hammer bit 119 from which the outer diameter of the axial part 119b differs by fitting the sliding cylinder part 143 in the through-hole 141c of the dust collection hood 141.
- the dust collection hose 146 can be attached to and detached from the hose holding main body 148 through the hose attachment / detachment opening 148a, and the rib-like protrusion 148b provided on the hose holding main body 148 is used as the dust collection hose 146.
- the dust collecting hose 146 is held by restricting the movement in the axial direction by engaging the concave portion of the bellows-like portion 146a. For this reason, the tip position of the dust collection hood 141 can be easily adjusted by changing the engagement position of the bellows-like portion 146a with respect to the protrusion 148b and mounting the dust collection hose 146.
- a sleeve-like sliding cylinder 143 that is slidably fitted to the shaft portion 119b of the hammer bit 119 is provided in a part of the dust collection hood 141, and the dust collection hood 141 is attached to the hammer.
- the shaft 119b of the bit 119 is directly guided.
- the dust collection hood 141 can be stably held. Further, since stable holding is possible, the dust collection hood 141 can be disposed close to the dust generation site, and the dust collection efficiency is improved.
- the dust collecting device 140 can be wound around and attached to the main body 103 of the electric hammer 101 using a flexible belt-like member 197 such as a belt, a tape, or a band. .
- a flexible belt-like member 197 such as a belt, a tape, or a band.
- FIG.7 and FIG.8 shows only the hose holder 147 among the dust collectors 140 for convenience.
- the hose holder 147 of the dust collector 140 is configured such that the belt-like member 197 is passed through a wide through hole formed in the base of the hose holding main body 148. Therefore, the hose holder 147 can be attached to the main body portion 103 by winding the belt-like member 197 around the outer surface of the main body portion 103, specifically, around the long axis direction of the barrel 107. As a result, the dust collection hose 146 of the dust collector 140 can be held by the hose holder 147.
- the hose holder 147 can be attached to an arbitrary position around the long axis of the hammer bit 119. For this reason, as in the case of the first embodiment described above, the dust collecting hose 146 held by the hose holding portion 147 and the dust collecting hood 141 connected to the dust collecting hose 146 around the major axis of the hammer bit 119. The dust collecting hose 146 can be moved to a position that does not interfere with the work while ensuring the visibility of the bit tip or work area.
- the belt-like member 197 is typically configured to be fixed by a hook-and-loop fastener.
- the fixing means for the belt-shaped member 197 is not limited to the hook-and-loop fastener, and various methods can be adopted. For example, a method of inserting and fixing a pin in the belt hole, a method of holding the belt by a fastener called a buckle, a method of fastening the belt by folding it around the square ring, etc. can be appropriately adopted. is there.
- the winding position of the belt-like member 197 around the barrel 107 can be either forward or rearward of the side handle 110, and the side handle 110 is removed and wound around the mounting region of the side handle 110.
- the wound member is not limited to the belt-like member 197 but may be a flexible string-like member such as a rope or a chain (for example, a ball chain in which a large number of balls are coupled by coupling).
- the wound member can also be constituted by a pair of semicircular plates whose one ends are connected so as to be relatively rotatable.
- the wound member can be formed of an elastically deformable cut ring member in which a part in the circumferential direction is missing.
- the dust collector 140 is attached to the main body 103 of the electric hammer 101 via the side handle 110, and includes the attachment ring 199 described in the first embodiment. Absent. That is, the hose holder 147 is attached to the side handle 110, and the dust collection hood 141 and the dust collection hose 146 in the dust collection device 140 are configured in the same manner as in the first embodiment. For this reason, about the dust collection hood 141 and the dust collection hose 146, the same code
- the side handle 110 to which the dust collector 140 is attached will be described mainly with reference to FIG.
- the side handle 110 is detachably attached to the barrel 107 of the electric hammer 101.
- the side handle 110 includes an attachment ring portion 111 that is attached by gripping the outer peripheral surface of the substantially cylindrical barrel 107 from the outside, a grip portion 121 that is held by an operator connected to the attachment ring portion 111, and the attachment ring portion 111.
- the fixing device is mainly composed of a through bolt 131 for tightening and loosening and a fixing knob 135 with a nut 133.
- the mounting ring portion 111 is configured by connecting one end portions of a pair of upper and lower ring constituent members 113 having a substantially semicircular arc shape so as to be relatively rotatable by a shaft 117 parallel to the major axis direction of the barrel 107.
- the other end side, that is, the free end side of the pair of ring constituting members 113 is a base portion 115 projecting outward.
- the grip part 121 is formed in a rod shape having a substantially circular cross section. At each end in the major axis direction (vertical direction in FIG. 10) of the grip part 121, parallel to each other in a direction intersecting with the major axis direction of the grip part 121 from the end part toward the attachment ring part 111.
- the upper and lower arm parts 123 extend. Between the extended end 125 of the upper arm 123 and the extended end 125 of the lower arm 123, the base 115 of the mounting ring 111 is disposed via a ring-shaped cam member 137.
- a through bolt 131 passes through each of the holes formed in the extended end 125, the cam member 137, and the base 115 in a loosely fitting manner in the vertical direction.
- the through bolt 131 has a hexagonal head portion 131a at one end, and when the dust collector 140 is not attached, the head portion 131a has an upper surface (a counterbore) of the extended end portion 125 of the upper arm portion 123. It is locked to the hole bottom). The other end portion of the through bolt 131 protrudes from the extended end portion 125 of the lower arm portion 123 with a predetermined length. A nut 133 of the fixing knob 135 is screwed to the thread portion of the through bolt 131.
- the fixing knob 135 when the fixing knob 135 is rotated in one direction (tightening direction) in a state where the mounting ring portion 111 is loosely fitted to the outside of the barrel 107, the arm portion 123 is operated. Due to this elasticity, the upper and lower extending end portions 125 are tightened by the through bolt 131 and the fixing knob 135 (nut 133) and moved in the direction of narrowing the interval (the direction of approaching each other). As a result, the bases 115 are also brought closer to each other in the direction of reducing the diameter of the ring constituent member 113 via the upper and lower cam members 137, and the mounting ring part 111 is fastened and fixed to the barrel 107.
- the attachment base 149 of the hose holder 147 is fixed to the side handle 110 by being sandwiched between the head 131a of the through bolt 131 in the side handle 110 and the arm 123 at the top of the grip part 121.
- the dust collector 140 is attached to the side handle 110.
- the attachment base 149 is formed as a flat plate-like member extending linearly from the hose holding main body 148.
- the mounting base 149 is formed along a substantially U-shaped notch groove 151 in a plan view that can be fitted into the through bolt 131 from the radial direction, and along the periphery of the notch groove 151.
- a non-rotating concave engaging portion 152 that engages with the head 131a of the through bolt 131 engaged with the notch groove 151 is formed. Therefore, in a state in which the through bolt 131 is loosened, the hose holder 147 is rotatable about the entire circumference of the through bolt 131 and can be adjusted in position around the bolt axis. After positioning through the hose holder 147 at a predetermined position around the axis of the bolt 131, the fixing knob 135 is rotated to tighten the through bolt 131, so that the head 131 a is engaged with the concave engaging portion 152. The stopped through bolt 131 is pulled toward the fixing knob 135 side. As a result, the attachment base 149 is sandwiched between the head 131 a of the through bolt 131 and the upper arm portion 123 and fixed to the side handle 110.
- the side handle 110 in a state where the fixing knob 135 is loosened and the fastening of the mounting ring portion 111 is released, the side handle 110 is rotated around the long axis of the barrel 107 and the grip portion about the long axis of the barrel 107 is obtained.
- the position 121 can be changed. Therefore, when the position of the grip part 121 around the long axis of the barrel 107 is changed, the position of the hose holder 147 of the dust collector 140 is changed together with the side handle 110.
- the side handle 110 can be attached without changing the structure. Further, in the state where the through bolt 131 is loosened, the hose holder 147 is rotated around the axis of the through bolt 131 together with the through bolt 131 to change the direction, so that the hose holder is held as shown in FIGS. The direction of the central axis of the hose holding main body 148 of the tool 147 can be changed, and the direction of the dust collecting hose 146 can be changed as in the case of the first embodiment.
- the hammer bit 119 has been described as an example of an impact tool.
- the hammer bit 119 is an electric hammer that performs only a long-axis hammer operation.
- a hammer work mode in which the hammer bit 119 performs a hammer operation The present invention can be applied to a hammer drill in which a work mode can be switched between a hammer drill work mode that performs an axial hammer operation and a circumferential hammer drill operation.
- a dust collector that is attached to an impact tool that linearly moves a tool bit attached to the tip region of the tool body in the long axis direction and collects dust generated by the impact tool, It has a dust suction port at the tip and a dust collecting part formed in a non-uniform shape around the long axis of the tool bit, and the position of the dust collecting part is an arbitrary position around the long axis of the tool bit. It is possible to select and change it around the long axis of the bit. Dust collector that can determine the position of the part according to the line-of-sight direction. "
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Abstract
Description
本発明の他の特質、作用および効果については、本明細書、特許請求の範囲、添付図面を参照することで直ちに理解可能である。
(本発明の第1の実施形態)
以下、本発明の第1の実施形態に係る集塵装置につき、図1~図6を参照しつつ説明する。本実施の形態は、打撃工具の一例としての電動ハンマに適用した場合で説明する。図1に、集塵装置140が装着された電動ハンマの全体構成を示す。図1を参照しつつ集塵装置140が装着される電動ハンマ101の構成を簡略に説明する。電動ハンマ101は、概括的に見て、電動ハンマ101の外郭を形成する本体部103と、当該本体部103の先端領域(図示左側)にツールホルダ(便宜上図示を省略する)を介して着脱自在に取付けられた長尺状のハンマビット119と、本体部103のハンマビット119の反対側に連接された使用者が握るメインハンドルとしてのハンドグリップ109とを主体として構成されている。本体部103は、本発明における「工具本体」に対応し、ハンマビット119は、本発明における「工具ビット」に対応する。ハンマビット119は、ツールホルダに対しチャック108を介してその長軸方向への相対的な往復動が可能に、かつその周方向への相対的な回動が規制された状態で保持される。なお説明の便宜上、電動ハンマ101のハンマビット119側を前、ハンドグリップ109側を後という。
次に電動ハンマ101に対する集塵装置140の取付構造に関する本発明の第2の実施形態につき、図7及び図8を参照しつつ説明する。この第2の実施形態は、ベルト、テープ、バンド等の可撓性の帯状部材197を用いて集塵装置140を電動ハンマ101の本体部103に巻付けて取付けることを可能としたものである。なお、集塵装置140の全体構成については、前述した第1の実施形態と概ね同様であり、図7及び図8では、便宜上集塵装置140のうちホース保持具147のみが示される。
また、巻付き部材は、帯状部材197に限らず、ロープあるいはチェーン(例えば、多数のボールがカップリングにより結合された構成のボールチェーン)のような可撓性の紐状部材であってもよい。また、巻付き部材は、一端同士が相対回動自在に連結された半円形の一対のプレートによって構成することも可能である。また、巻付き部材は、周方向の一部が欠けた弾性変形可能な切れ目付きリング部材で構成することも可能である。
次に電動ハンマ101に対する集塵装置140の取付構造に関する本発明の第3の実施形態につき、図9~図12を参照しつつ説明する。この第3の実施形態は、集塵装置140を電動ハンマ101の本体部103に対しサイドハンドル110を介して取付ける構成としたものであり、第1の実施形態で説明した取付リング199を備えていない。すなわち、ホース保持具147をサイドハンドル110に取付けるようにしたものであり、集塵装置140のうち集塵フード141及び集塵ホース146については、第1の実施形態と同様に構成される。このため、集塵フード141及び集塵ホース146については、第1の実施形態と同一の符号を付してその説明を省略または簡略する。
(態様1)
「工具本体の先端領域に装着された工具ビットを長軸方向に直線動作させる打撃工具に取付けられ、打撃工具が発生させる粉塵を集塵する集塵装置であって、
先端に粉塵吸引口を有するとともに、前記工具ビットの長軸周りに不均一形状に形成された集塵部を有し、前記集塵部の位置が、工具ビットの長軸周りの任意の位置を選択してビット長軸周りに変化させることが可能とされ、これにより集塵部越しにビット先端ないし作業領域を見るとき、視線方向に集塵部の見易い領域が位置するように、当該集塵部の位置を視線方向に合わせて定めることができるようにした集塵装置。」
103 本体部
105 ハウジング
107 バレル
108 チャック
109 ハンドグリップ(メインハンドル)
110 サイドハンドル
111 取付リング部
113 リング構成部材
115 基部
117 軸
119 ハンマビット(工具ビット)
119a ビット先端
119b 軸部
121 グリップ部
123 アーム部
125 延出端部
131 通しボルト
131a 頭部
133 ナット
135 固定ノブ
137 カム部材
140 集塵装置
141 集塵フード(集塵部)
141a 粉塵吸引口
141b 内部空間
141c 貫通孔
143 摺動筒体
144 ホース接続部
144a 通路
145 仕切り壁
146 集塵ホース(粉塵移送部)
146a 蛇腹状部分
147 ホース保持具(ホース保持部)
148 ホース保持本体部
148a ホース着脱用開口
148b 突起
149 取付基部
149a 球状凹面
151 切欠溝
152 凹状係合部
197 帯状部材
198 Oリング
199 取付リング(回動部材)
199a 球面部
Claims (8)
- 工具本体の先端領域に装着された工具ビットを長軸方向に直線動作させる打撃工具に取付けられ、打撃工具が発生させる粉塵を集塵する集塵装置であって、
先端に粉塵吸引口を有するとともに、外郭形状が前記工具ビットの長軸周りに関して不均一形状に形成された集塵部を有する集塵装置。 - 請求項1に記載の集塵装置であって、
前記集塵部は、工具ビットの長軸周りの位置を変更可能に工具ビットに取付けられる集塵装置。 - 請求項1または2の集塵装置であって、
前記集塵部に連接されて粉塵を下流側へと移送する集塵ホースと、前記集塵ホースを保持するホース保持部とを更に有し、
前記ホース保持部は、前記工具本体に前記工具ビットの長軸周りに相対回動自在に取付けられており、前記ホース保持部によって保持された前記集塵ホースが当該ホース保持部と共に前記工具ビットの長軸周りに回動することにより前記集塵部の位置がビット長軸周りに変化する集塵装置。 - 請求項3に記載の集塵装置であって、
前記工具本体に対し前記工具ビットの長軸周りに相対回動自在に取付けられた回動部材を有し、前記ホース保持部は、前記回動部材に対し前記工具ビットの長軸方向と交差する軸線周りに相対回動自在に取り付けられている集塵装置。 - 請求項1または2に記載の集塵装置であって、
前記集塵部に連接されて粉塵を下流側へと移送する集塵ホースと、前記集塵ホースを保持するホース保持部とを更に有し、
前記ホース保持部は、前記工具本体に取付けられて前記工具ビットの長軸周りに関する取付け位置が変更可能な補助ハンドルに取付けられるものであり、前記工具本体に対し前記補助ハンドルの取付け位置を変更する際、前記ホース保持部によって保持された前記集塵ホース及び前記集塵部の位置が前記補助ハンドルと共にビット長軸周りに変化する集塵装置。 - 請求項1~5のいずれか1つに記載の集塵装置であって、
前記集塵部に連接されて粉塵を下流側へと移送する集塵ホースを更に有し、前記集塵部の先端が、前記工具ビットを挟んで前記集塵ホースとの連接部側と、その反対側につき、前記連接部側が前記ビット先端から離間し、前記反対側が前記ビット先端に近接するような傾斜形状に形成されている集塵装置。 - 請求項1~6のいずれか1つに記載の集塵装置であって、
前記集塵部に連接されて粉塵を下流側へと移送する集塵ホースを更に有し、前記粉塵吸引口から前記集塵ホースにつながる通路は、仕切り壁によって複数に区画され、当該区画された通路の各流路断面積は、前記集塵ホースの最小流路断面積よりも小さい集塵装置。 - 請求項1~7のいずれか1つに記載の集塵装置を有する打撃工具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11803559.1A EP2591886B1 (en) | 2010-07-08 | 2011-07-04 | Dust collection device and impact tool |
CN201180033208.8A CN102985227B (zh) | 2010-07-08 | 2011-07-04 | 集尘装置以及冲击工具 |
RU2013105332/02A RU2013105332A (ru) | 2010-07-08 | 2011-07-04 | Пылесборное устройство и ударный инструмент |
US13/807,884 US9302363B2 (en) | 2010-07-08 | 2011-07-04 | Dust collecting device and impact tool |
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JP2010156045A JP2012016790A (ja) | 2010-07-08 | 2010-07-08 | 集塵装置 |
JP2010-156045 | 2010-07-08 |
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WO2012005225A1 true WO2012005225A1 (ja) | 2012-01-12 |
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PCT/JP2011/065310 WO2012005225A1 (ja) | 2010-07-08 | 2011-07-04 | 集塵装置、および打撃工具 |
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US (1) | US9302363B2 (ja) |
EP (1) | EP2591886B1 (ja) |
JP (1) | JP2012016790A (ja) |
CN (1) | CN102985227B (ja) |
RU (1) | RU2013105332A (ja) |
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DE102013215792B4 (de) | 2013-08-09 | 2024-01-04 | Robert Bosch Gmbh | Handwerkzeugmaschinenabsaugvorrichtung |
JP6406696B2 (ja) * | 2014-09-12 | 2018-10-17 | セイコータイムシステム株式会社 | 孔開け装置 |
JP6379004B2 (ja) * | 2014-10-10 | 2018-08-22 | 株式会社マキタ | 集塵アタッチメント及び電動工具 |
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US11103988B2 (en) * | 2017-11-06 | 2021-08-31 | CJ&S, Inc. | Jack hammer silica dust suppression system |
JP7049942B2 (ja) * | 2018-06-25 | 2022-04-07 | 株式会社マキタ | 吸塵ビットの共回り防止アタッチメント、ハンマードリル |
CN109571144B (zh) * | 2018-12-29 | 2020-10-23 | 广东天机工业智能***有限公司 | Cnc自动线 |
CN110434401B (zh) * | 2019-07-05 | 2020-11-06 | 扬州市高升机械有限公司 | 一种电动工具的排屑装置 |
DE202019106152U1 (de) * | 2019-11-05 | 2021-02-09 | Festool Gmbh | Handgeführte Werkzeugmaschine |
DE102020208392A1 (de) * | 2020-07-03 | 2022-01-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Absaugaufsatz |
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Also Published As
Publication number | Publication date |
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EP2591886A4 (en) | 2016-02-24 |
CN102985227B (zh) | 2015-12-09 |
RU2013105332A (ru) | 2014-08-20 |
EP2591886B1 (en) | 2019-07-03 |
JP2012016790A (ja) | 2012-01-26 |
US20130213681A1 (en) | 2013-08-22 |
CN102985227A (zh) | 2013-03-20 |
EP2591886A1 (en) | 2013-05-15 |
US9302363B2 (en) | 2016-04-05 |
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