WO2010125887A1 - チャック装置 - Google Patents
チャック装置 Download PDFInfo
- Publication number
- WO2010125887A1 WO2010125887A1 PCT/JP2010/055766 JP2010055766W WO2010125887A1 WO 2010125887 A1 WO2010125887 A1 WO 2010125887A1 JP 2010055766 W JP2010055766 W JP 2010055766W WO 2010125887 A1 WO2010125887 A1 WO 2010125887A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotating
- rotation
- cylinder
- chuck device
- rotating cylinder
- 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
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/1238—Jaws movement actuated by a nut with conical screw-thread
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S279/00—Chucks or sockets
- Y10S279/902—Keyless type socket
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17615—Obliquely guided reciprocating jaws
- Y10T279/17623—Threaded sleeve and jaw
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17615—Obliquely guided reciprocating jaws
- Y10T279/17623—Threaded sleeve and jaw
- Y10T279/17632—Conical sleeve
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/19—Radially reciprocating jaws
- Y10T279/1926—Spiral cam or scroll actuated
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/32—Means to prevent jaw loosening
Definitions
- the present invention relates to a chuck device.
- Patent Document 1 a rotating cylinder provided in a main body is rotated, and the rotating nut rotated together with the rotating cylinder is screwed with the rotating nut.
- a chuck device that extends and retracts a claw and holds a tool with the claw.
- Patent Document 1 As a structure for preventing the falling of the rotating nut or the main body and the rotating cylinder in such a chuck device, as disclosed in Patent Document 1, for example, a groove provided on the inner peripheral surface of the rotating end of the rotating cylinder A C-shaped retaining ring (retaining ring) is disposed on the inner surface, and a structure in which a rotating nut (a retaining ring for retaining the shape) is locked to the retaining ring to prevent the retaining ring is disclosed in Patent Document 2.
- a retaining ring similar to the above is disposed in the groove provided on the inner peripheral surface of the distal end opening of the rotating cylinder (outer mantle) where the claw advances and retreats, and the main body (chuck body) is engaged with this retaining ring.
- the rotating nut is annular and is fitted on the main body, and if the retaining nut is prevented from being removed from either the rotating nut or the main body, the rotating cylinder is prevented from falling off.
- the present invention has been completed as a result of various studies in order to develop a drop-off prevention structure that achieves a stronger connection between a rotating nut (rotating body) or a main body and a rotating cylinder.
- a practical chuck device that is excellent in mass productivity as well as being able to reliably and stably prevent the rotating body or the main body and the rotating cylinder from coming off.
- a rotating cylinder 2 provided in the main body 1 is rotated, and a claw 4 screwed with the rotating body 3 is expanded and retracted by rotating an annular rotating body 3 that rotates together with the rotating cylinder 2 to A chuck device for holding the rotary cylinder 3 or the main body 1 to prevent the rotary cylinder 2 from coming off from the rotary body 3 or the main body 1.
- the retainer locking body 5 is provided in a fixed state on the proximal end side of the rotating cylinder 2, and the retainer locking body 5 is directly or indirectly connected to the rotating body 3.
- a rotation transmitting portion for transmitting the rotation of the rotating cylinder 2 is provided, and the rotation of the rotating cylinder 2 is transmitted to the rotating body 3 through the retaining stopper 5 so that the rotating body 3 is
- the chuck device is configured to rotate together with the rotating cylinder 2.
- the rotating cylinder 2 provided in the main body 1 is rotated, and the claw 4 screwed with the rotating body 3 is expanded / retracted by the rotation of the annular rotating body 3 that rotates together with the rotating cylinder 2.
- the retainer locking body 5 is provided in a fixed state on the proximal end side of the rotating cylinder 2, and an intermediate cylinder body that fits the rotating body 3 inside the rotating cylinder 2.
- the retaining member 5 is provided with a rotation transmitting portion that transmits the rotation of the rotating cylinder 2 to the rotating body 3 via the intermediate cylinder 10.
- the rotation of the cylinder 2 is transmitted to the rotating body 3 via the retaining stopper 5 and the intermediate cylinder 10, and the rotating body 3 together with the rotating cylinder 2 is transmitted. That is configured to kinematic those of the chuck device according to claim.
- the present invention relates to a chuck device characterized in that a portion 7 is provided.
- the retaining stopper 5 protrudes toward the inside of the cylindrical fixing portion 8 and the cylindrical fixing portion 8 fixed to the rotating cylinder 2, A projecting portion 6 that comes into contact with the rotating body 3 or the main body 1 to prevent the rotating cylinder 2 from coming off from the rotating body 3 or the main body 1, and the co-rotating fitting portion provided in the cylindrical fixing portion 8.
- the chuck device is characterized in that the chuck device is configured as described above.
- the chuck device according to claim 4, wherein the protruding portion 6 extends in a direction intersecting with a rotation axis of the rotating cylinder 2.
- the co-rotation fitting portion 7 extends in the direction of the rotation axis of the rotating cylinder 2, and relates to the chuck device.
- the chuck device according to claim 8 wherein the retainer locking body 5 is made of metal, and is formed by integrally molding the protruding portion 6, the joint fitting portion 7, and the cylindrical fixing portion 8.
- the present invention relates to a chuck device that is characterized by the above.
- the chuck device according to any one of claims 3 to 9, wherein the intermediate cylinder 10 is disposed between a plurality of protrusions 14a, 14b, 14c and 14d provided on the rotating body 3,
- a chuck device characterized in that it is provided with a rotation transmission locking portion 9 that is locked to the protrusions 14a, 14b, 14c, and 14d and transmits the rotation of the rotating cylinder 2 to the rotating body 3. It is related to.
- the chuck device according to claim 11, wherein the rotating body 3 includes an annular nut body 12 formed by connecting a plurality of divided nut bodies, and a shape retaining ring 13 that retains the nut body 12.
- the present invention relates to a chuck device.
- the chuck device is configured to rotate together with the cylinder 2.
- the chuck device wherein the rotating body 3 includes an annular nut body 12 formed by connecting a plurality of divided nut bodies, and a shape retaining ring 13 for retaining the nut body 12.
- the shape retaining ring 13 is provided with the concave portion 11 or the convex portion, and is related to a chuck device.
- the concave portion 11 or the convex portion is provided in a flange portion 40 provided at an upper end portion of the shape retaining ring 13.
- the present invention is configured as described above, the rotating body or the main body and the rotating cylinder can be surely and stably prevented from coming off, and of course, it is a practical chuck device with excellent mass productivity.
- FIG. 2 is a cross-sectional view taken along the line XX of FIG. It is a schematic explanatory front view which notched a part of another example. It is a disassembled schematic explanatory perspective view of another example of a shape retaining ring and a dropout prevention body.
- the retaining member 5 for retaining the rotating cylinder 2 with respect to the rotating body 3 or the main body 1 is provided in a fixed state on the rotating cylinder 2, so that impact or Even if the vibration acts, the rotating cylinder 2 is reliably prevented from being detached from the rotating body 3 or the main body 1.
- the rotation transmitting portion in the retaining latch 5
- the retaining latch 5 it is possible to cause the retaining latch 5 to have not only the retaining latch action but also the pivot transmitting function, and thus a simple configuration.
- the rotation of the rotating cylinder 2 can be transmitted to the rotating body 3.
- the common rotation fitting portion 7 as a rotation transmitting portion on the retaining stopper 5
- the intermediate cylinder 10 is made of a synthetic resin, and the inner surface shape of the intermediate cylinder 10 can be easily processed into a desired shape, so that it is excellent in workability and mass productivity.
- the present embodiment is a chuck device in which a plurality of claws 4 inserted into a hole 20 provided at the tip of the main body 1 are expanded and contracted by rotating the rotating cylinder 2 and a tool is gripped by the claws 4.
- the main body 1 is provided with annular ratchet teeth 21, and the main body 1 is engaged with the claw 4 inwardly of the rotating cylinder 2 and rotates together with the rotating cylinder 2.
- the rotating body 3 is fitted, and a detachable locking spring body that locks the ratchet teeth 21 is disposed outside the ratchet teeth 21, and the locking spring body is rotated by the rotating body 3.
- the chuck device has a retaining member 5 which is retained with the rotating body 3 or the main body 1 and prevents the rotating cylinder 2 from being detached from the rotating body 3 or the main body 1.
- the retainer locking body 5 is provided in a fixed state on the base end side of the rotating body 3 as the rotating cylinder 2, and the rotating body 3 and the main body 1 are interposed between the rotating body 3 and the main body 1.
- An intermediate cylinder 10 to be fitted is provided, and the locking stopper 5 is provided with a co-rotation fitting portion 7 to be fitted to the concave portion 11 or the convex portion provided in the intermediate cylinder 10.
- the rotation of the rotating cylinder 2 is transmitted to the rotating body 3 through the retaining stopper 5 and the intermediate cylinder 10 so that the rotating body 3 rotates together with the rotating cylinder 2. It is what.
- the present invention is applied to a chuck device used for an electric rotating tool such as a so-called hammer drill, vibration drill, driver drill or the like that applies vibration or impact.
- a connecting hole 36 that connects to the main shaft of the electric rotating tool is provided at the end.
- the main body 1 is made of a metal such as iron, steel or stainless steel, a non-ferrous metal such as aluminum, magnesium or titanium, an alloy thereof, a synthetic resin or a fiber reinforced resin.
- a present Example is steel.
- three claws 4 are provided in an inclined state in a hole 20 formed in the main body 1, and an annular rotating body 3 that engages with a screw portion 15 formed on the outer surface of the claw 4. Is provided on the claw 4 in a fitted state.
- the rotating body 3 includes a divided nut body 12 that is divided into a plurality of parts in the circumferential direction and a shape retaining ring 13 that retains the plurality of divided nut bodies 12 (both rotate together). ).
- reference numeral 17 is a steel ball
- 18 is a steel ball receiver
- 19 is an O-ring.
- an intermediate cylinder 10 made of synthetic resin is fitted on the distal end side of the rotating body 3 as the main body 1.
- the intermediate cylindrical body 10 includes a plurality of protrusions 14 a, 14 b, 14 c, and 14 d provided in a protruding state from the nut body 12 of the rotating body 3 toward the distal end side.
- a rotation transmission locking portion 9 is provided which is disposed and locked to the protrusions 14a, 14b, 14c and 14d and transmits the rotation of the rotating cylinder 2 to the rotating body 3.
- a pair of rotation transmission locking portions 9 are provided in an opposed state.
- the base end portion of the intermediate cylinder 10 is provided with recesses 11 into which the joint fitting portions 7 of the retaining stoppers 5 are fitted at predetermined intervals in the circumferential direction. It is installed side by side.
- the rotating cylinder 2 is rotated to transmit the rotation to the nut body 12 and the rotating body 3 is rotated. It is good also as a structure which transmits rotation and rotates the rotary body 3.
- FIG. 1 is a structure which transmits rotation and rotates the rotary body 3.
- a locking spring body is attached to the projecting portions 14a, 14b, 14c and 14d provided on the nut body 12 of the rotating body 3 in a co-rotating state.
- an annular ratchet tooth 21 is formed on the main body 1 on the front end side of the rotating body 3 and meshes with the front end locking portion of the locking spring body.
- the ratchet teeth 21 may be formed directly on the main body 1 or may be formed separately from the main body 1 and made of a hard member 13 having high hardness, for example, steel or stainless steel. Due to the engagement between the ratchet teeth 21 and the tip locking portion, the nut body 12 (rotating body) appears to be rotatable only in one direction (non-reversible state). The details of the locking spring body and the ratchet teeth will be described later.
- a metal (steel) rotating cylinder 2 is fitted on the main body 1 on which the rotating body 3 and the intermediate cylinder 10 are fitted.
- the rotating cylinder 2 is not limited to metal but may be made of resin.
- a metal (steel) annular retaining member 5 is press-fitted into the proximal end of the rotating cylinder 2.
- the retaining latch 5 has a thin plate-shaped cylindrical fixing portion 8 that is slightly larger in diameter than the inner peripheral surface of the proximal end that is a substantially constant diameter of the rotating cylinder 2.
- the intermediate cylinder 10 is fitted on the main body 1 provided with the moving body 3, the rotary cylinder 2 is fitted on the main body 1 fitted with the intermediate cylinder 10, and the retaining stopper 5 is attached to the rotary cylinder 2. Is inserted into the rotating cylinder 2, and is fixed to the rotating cylinder 2 by press-fitting the cylindrical fixing portion 8 to the position of the proximal end from the rotating body 3.
- the cylindrical fixing portion 8 is not limited to the position on the base end side from the rotating body 3, specifically, for example, the position on the base end side from the screwed portion between the nut body 12 of the rotating body 3 and the screw portion 15 of the claw 4. You may comprise so that it may press-fit in the front end side position (or substantially the same position as the said screwing part) from the said screwing part.
- the retainer locking body 5 protrudes inward of the cylindrical fixing portion 8 fixed to the rotating cylinder 2 and the cylindrical fixing section 8, and comes into contact with the rotating body 3 or the main body 1.
- the projecting portion 6 prevents the rotating cylinder 2 from coming off from the rotating body 3 or the main body 1, and the co-rotating fitting portion 7 for transmitting the rotation of the rotating cylinder 2 provided in the cylindrical fixing portion 8. ing.
- the protruding portion 6 is configured to protrude a predetermined amount from the lower end portion of the cylindrical fixing portion 8 toward the inside of the rotating cylinder 2 and abut against the rotating body 3 (the shape retaining ring 13). Has been.
- the protrusion 6 may be configured to contact the main body 1 without being limited to the rotating body 3, but when the retainer locking body 5 (protrusion 6) contacts the main body 1, the retainer locking body. A loss due to friction occurs between 5 and the main body 1 (not always in contact with the protrusion 6).
- the protrusion 6 of the retaining latch 5 is plate-shaped and extends in a direction intersecting the rotation axis of the rotating cylinder 2 (a direction orthogonal to the rotation axis of the rotating cylinder 2).
- the tip side surface of the projecting portion 6 is set as a contact surface with the rotating body 3 or the main body 1.
- the common rotation fitting portion 7 of the retainer locking body 5 is plate-shaped, and the rotating shaft direction of the rotating cylinder 2 from the fixed portion 8 (the direction parallel to the rotating shaft of the rotating cylinder 2). It is extended to.
- the co-rotating fitting portions 7 are arranged in parallel at the same number as the concave portions 11 at positions corresponding to the concave portions 11 provided in the base end portion of the intermediate cylinder 10.
- the protrusion 6 is provided.
- the co-rotating fitting portion 7 is provided so as not to contact the inner peripheral surface of the rotating cylinder 2 and the shape retaining ring 13 of the rotating body 3 via the cylindrical fixing portion 8 and the stepped portion. Note that the width of the common rotation fitting portion 7 is set to be substantially the same as the width of the concave portion 11.
- the retainer locking body 5 of the present embodiment has the protruding portion 6 that extends from the cylindrical fixing portion 8 in a direction intersecting the rotation axis of the rotating cylinder 2.
- the co-rotating fitting portions 7 extending in the rotation axis direction of the rotating cylinder 2 are alternately arranged in the circumferential direction of the fixed portion 8 in a state where the extending directions intersect each other at substantially right angles. It is configured.
- the retainer locking body 5 is formed by integrally molding the protruding portion 6, the co-rotating fitting portion 7 and the cylindrical fixing portion 8.
- the intermediate cylinder 10 is rotated integrally with the rotary cylinder 2 by the jointing fitting portion 7 of the retaining stopper 5 provided in a fixed state on the rotary cylinder 2, and this intermediate cylinder is rotated.
- the rotation of 10 is transmitted to the rotating body 3 (the nut body 12 thereof) via the rotation transmitting locking portion 9 and the claw 4 can be expanded / retracted by rotating the rotating cylinder 2. .
- the retaining stopper 5 is configured to transmit the rotation of the rotating cylinder 2 to the rotating body 3 indirectly via the intermediate cylinder 10. 10 is not provided, and the rotation transmitting portion (co-rotating fitting portion 7) is provided directly at the base end portion of the rotating body 3 (the nut body 12 or the shape retaining ring 13) (similar to the intermediate cylinder 10 described above). ) It may be configured to be fitted to the concave portion 11 or the convex portion and transmit the rotation of the rotary cylinder 2. In this case, if the application does not require loosening prevention, the configuration can be simplified and the assembling work and the like can be facilitated by not providing the ratchet mechanism.
- a flange portion 40 is provided at the upper end of the shape retaining ring 13.
- the notch part (recess 11) is formed with a width slightly larger than the fitting part 7 and at substantially the same interval as the common fitting part 7, and the common fitting part 7 is fitted to the notch part. You may do it. In this case, the rotation of the rotating cylinder 2 can be transmitted directly to the rotating body 3 without using the intermediate cylinder 10.
- the above-mentioned co-rotating fitting portion 7 is employed as the rotation transmitting portion to transmit the rotation of the rotating cylinder 2 to the rotating body 3, but for example, the intermediate cylinder 10 ( A part of the retaining locking body 5 is press-fitted into the shape retaining ring 13) of the rotating body 3 to rotate the intermediate cylinder 10 (the rotating body 3) and the rotating cylinder 2 together.
- You may comprise so that rotation of the rotation cylinder 2 may be transmitted (the press fitting part which press-fitted and fitted the retaining locking body 5 may be used as a rotation transmission part).
- the locking spring body is made of metal (made of iron or steel) and is arranged around the ratchet teeth 21 so as to be supported on the inner surface of the intermediate cylinder 10.
- the rotational force of the rotating cylinder 2 is transmitted in the same manner even if it is transmitted via the shape retaining ring 13.
- the locking spring body of this embodiment is composed of two locking spring bodies 22 and 23.
- the one locking spring body 22 bears the locking action with the ratchet teeth 21, and the other locking spring body 23 holds the position of the rotating cylinder 2, thereby It bears the action of holding the spring body 22 in a predetermined position.
- the locking action with the ratchet teeth 21, and the locking state holding action with the ratchet teeth 21 and the unlocking state holding action are carried by separate springs. It is good also as a structure which makes a stop spring body bear the said effect
- the locking spring body 22 is provided with a tip locking portion 24 that locks the two protrusions 25 and 26 and the ratchet teeth 21. Due to the protrusions 25 and 26 of the locking spring body 22 and the protrusions 14a and 14b (recesses thereof) of the nut body 12, the locking spring body 22 is attached to the nut body 12 so as to rotate together.
- the locking spring body 23 is provided with three protrusions 27, 28, and 29.
- the protrusions 27, 28 and 29 of the locking spring body 23 and the protrusions 14b (recesses), 14c and 14d of the nut body 12 the locking spring body 23 is attached to the nut body 12 so as to rotate together.
- the locking spring bodies 22 and 23, the rotation transmission locking portion 9 and the protrusions 14a, 14b, 14c and 14d are arranged on the same circumference, so that a more compact design is possible.
- the attachment of the locking spring bodies 22 and 23 and the nut body 12 is not limited to the above configuration as long as they are in a state of co-rotation.
- the locking spring bodies 22 and 23 are configured to be attached to the nut body 12 by the uneven fitting means, but may be configured to be attached to the shape retaining ring 13 by the uneven fitting means.
- an intermediate body 35 is provided on the inner surface of the intermediate cylinder 10 for surely releasing the locking between the tip locking portion 24 of the locking spring body 22 and the ratchet teeth 21.
- the front end locking portion 24 is received by the front end tapered surface, and the release (engagement) between the front end locking portion 24 and the ratchet teeth 21 is surely released.
- a pressing portion 32 for pressing the tip locking portion 24 of the locking spring body 22 and maintaining the locking state of the tip locking portion 24 and the ratchet teeth 21.
- An intermediate cylinder 10 whose tip is received by the main body 1 is fitted on the nut body 12, and this intermediate cylinder 10 rotates together with the nut body 12, but when a predetermined load is applied to the rotation of the nut body 12
- the nut body 12 is configured to rotate by a predetermined angle.
- the rotation of the intermediate cylinder 10 with respect to the nut body 12 at a predetermined angle is between the protrusion 14a and the protrusion 14b, specifically, L in FIG. Therefore, when the intermediate cylinder 10 rotates together with the rotating cylinder 2 and a load is applied, the protrusions 33 and 34 of the intermediate cylinder 10 get over the protrusions 30 and 31 against the spring force of the locking spring body 23.
- the end surface of the rotation transmission locking portion 9 between the projections 14a and 14b abuts on the end surface M of the projection 14b (similarly, the end surface of the rotation transmission locking portion 9 between the projections 14c and 14d). Is in contact with the end surface N of the projecting portion 14d.),
- the intermediate cylinder 10 (the rotating cylinder 2) and the nut body 12 are integrated, and tightening is performed.
- the loosening prevention force can be set by the spring force of the locking spring bodies 22 and 23, particularly the shape of the protrusions 33 and 34 and the protrusions 30 and 31.
- an anti-slip ridge is formed on the outer surface of the rotating cylinder 2, and the rotating cylinder 2 is received by the receiving member 16 provided at the distal end of the rotating cylinder 2 and at the proximal end of the rotating cylinder 2.
- an electric rotating tool such as a driver drill
- rotational force is required when opening and closing the chuck or drilling, but when using an electric rotating tool such as an impact driver, hammer drill, or vibration drill.
- the holding force in the axial direction is necessary to prevent the slipping, so that the receiving member 16 and the main body 1 are connected in the form of an eyelet knurl provided at the rear end of the main body 1. good.
- the receiving member 16 is exposed to the outside of the rotating cylinder 2, but may be configured to be accommodated in the rotating cylinder 2.
- the rotating cylinder 2 and the nut body 12 are rotated together until a predetermined load is applied to the rotating cylinder 2.
- the locking spring bodies 22 and 23 also rotate around the ratchet teeth 21.
- the pressing portion 32 of the intermediate cylinder 10 presses the tip locking portion 24, the tip locking portion 24 locks with the ratchet teeth 21, and further, the protrusions 33 and 34 of the intermediate cylinder 10 Gets over the protrusions 30 and 31 of the locking spring body 23, and the rotation transmitting locking part 9 comes into contact with the end surface M of the protrusion 14b and the end surface N of the convex part 14d, respectively. 2) and the nut body 12 are integrated, and when the rotating cylinder 2 is further rotated, the distal end locking portion 24 of the locking spring body 22 locked to the ratchet teeth 21 causes the ratchet teeth 21 by the plate spring action.
- the chuck device according to the present embodiment is an excellent chuck device that is reliably prevented from loosening of the tool and has a simple structure and high durability.
- the intermediate body 35 of the present embodiment is for the tip locking portion 24 of the locking spring body 22 not to be inadvertently engaged with the ratchet teeth 21 (therefore, it is not received by the intermediate body 35, that is, In the state where the pressing part 32 is not in contact with the tip locking part 24, the tip locking part 24 is separated from the ratchet teeth 21 due to the elasticity of the spring).
- it may be configured to always mesh with the ratchet teeth 21 and forcibly release the meshing between the tip locking portion 24 and the ratchet teeth 21 by the interposition body 35.
- the rotating cylinder 2 can be more reliably detached from the rotating body 3 or the main body 1 even when an impact or vibration is applied when processing using the gripped tool. Will be prevented.
- the joint portion 7 for the co-rotation of the retaining latch 5 it is possible to provide the intermediate cylinder 10, and to prevent the outer peripheral portion from being damaged due to rubbing or the like of the outer peripheral portion during work.
- the intermediate cylinder 10 is made of synthetic resin, and the inner surface shape of the intermediate cylinder 10 (pressing portion 32, protrusions 33 and 34, interposition body 35), etc. Can be easily processed into a desired shape, and the processability and mass productivity can be improved accordingly.
- the intermediate cylinder 10 and the rotating cylinder 2 separate, the intermediate cylinder 10 can be diverted even when the appearance design of the rotating cylinder 2 is changed, so that only the rotating cylinder 2 can be replaced. It is only necessary to change the appearance design of the rotating cylinder 2 easily and at a low cost.
- the present embodiment provides a practical chuck device that is excellent in mass productivity as well as being able to more reliably and stably prevent the rotating body, the main body, and the rotating cylinder from coming off.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims (16)
- 本体に設けた回動筒を回動させ、この回動筒と共に回動する環状の回動体の回動により該回動体と螺合している爪を拡縮進退させ、工具を前記爪により把持するチャック装置であって、前記回動体若しくは前記本体と係止して該回動体若しくは本体から前記回動筒を抜け止めする抜け止め係止体を有し、この抜け止め係止体は前記回動筒の基端側に固定状態に設けられ、また、この抜け止め係止体には、前記回動体に直接若しくは間接的に前記回動筒の回動を伝達する回動伝達部が設けられ、前記回動筒の回動が前記抜け止め係止体を介して前記回動体に伝達されて該回動体が前記回動筒と共に回動するように構成されていることを特徴とするチャック装置。
- 本体に設けた回動筒を回動させ、この回動筒と共に回動する環状の回動体の回動により該回動体と螺合している爪を拡縮進退させ、工具を前記爪により把持するチャック装置であって、前記回動体若しくは前記本体と係止して該回動体若しくは本体から前記回動筒を抜け止めする抜け止め係止体を有し、この抜け止め係止体は前記回動筒の基端側に固定状態に設けられ、前記回動筒の内方には前記回動体と嵌合する中間筒体が設けられ、前記抜け止め係止体には、前記回動体に前記中間筒体を介して前記回動筒の回動を伝達する回動伝達部が設けられ、前記回動筒の回動が前記抜け止め係止体及び前記中間筒体を介して前記回動体に伝達されて該回動体が前記回動筒と共に回動するように構成されていることを特徴とするチャック装置。
- 請求項2記載のチャック装置において、前記抜け止め係止体には、前記中間筒体に設けた凹部若しくは凸部と嵌合する前記回動伝達部としての共回り用嵌合部が設けられていることを特徴とするチャック装置。
- 請求項3記載のチャック装置において、前記抜け止め係止体は、前記回動筒に固定される筒状固定部と、この筒状固定部の内方に向かって突出し、前記回動体若しくは前記本体に当接して該回動体若しくは本体から前記回動筒を抜け止めする突出部と、前記筒状固定部に設けられる前記共回り用嵌合部とで構成されていることを特徴とするチャック装置。
- 請求項4記載のチャック装置において、前記突出部は、前記回動筒の回転軸と交差する方向に延設されていることを特徴とするチャック装置。
- 請求項5記載のチャック装置において、前記共回り用嵌合部は、前記回動筒の回転軸方向に延設されていることを特徴とするチャック装置。
- 請求項6記載のチャック装置において、前記突出部と前記共回り用嵌合部とはその延設方向が夫々略直角に交差する状態で設けられていることを特徴とするチャック装置。
- 請求項7記載のチャック装置において、前記筒状固定部は前記回動筒の内周面に圧入嵌合せしめられて前記回動筒に固定状態で設けられていることを特徴とするチャック装置。
- 請求項8記載のチャック装置において、前記抜け止め係止体は金属製であり、前記突出部、前記共回り用嵌合部及び前記筒状固定部を一体成形して形成したものであることを特徴とするチャック装置。
- 請求項3~9いずれか1項に記載のチャック装置において、前記中間筒体には、前記回動体に複数設けられる突部間に配設され、この突部と係止して前記回動筒の回動を前記回動体に伝達する回動伝達用係止部が設けられていることを特徴とするチャック装置。
- 請求項10記載のチャック装置において、前記回動筒は金属製であり、前記中間筒体は合成樹脂製であることを特徴とするチャック装置。
- 請求項11記載のチャック装置において、前記回動体は、複数の分割ナット体を連設して成る環状のナット体と該ナット体を保形する保形環とで構成されていることを特徴とするチャック装置。
- 本体に設けた回動筒を回動させ、この回動筒と共に回動する環状の回動体の回動により該回動体と螺合している爪を拡縮進退させ、工具を前記爪により把持するチャック装置であって、前記回動体若しくは前記本体と係止して該回動体若しくは本体から前記回動筒を抜け止めする抜け止め係止体を有し、この抜け止め係止体は前記回動筒の基端側に固定状態に設けられ、また、前記抜け止め係止体には、前記回動体に前記回動筒の回動を伝達する回動伝達部が設けられ、前記回動筒の回動が前記抜け止め係止体を介して前記回動体に伝達されて該回動体が前記回動筒と共に回動するように構成されていることを特徴とするチャック装置。
- 請求項13記載のチャック装置において、前記抜け止め係止体には、前記回動体に設けた凹部若しくは凸部と嵌合する前記回動伝達部としての共回り用嵌合部が設けられていることを特徴とするチャック装置。
- 請求項14記載のチャック装置において、前記回動体は、複数の分割ナット体を連設して成る環状のナット体と該ナット体を保形する保形環とで構成され、この保形環に前記凹部若しくは凸部が設けられていることを特徴とするチャック装置。
- 請求項15記載のチャック装置において、凹部若しくは凸部は、前記保形環の上端部に設けたフランジ部に設けられていることを特徴とするチャック装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US13/258,848 US9016699B2 (en) | 2009-04-30 | 2010-03-30 | Chuck device |
CN201080018952.6A CN102413973B (zh) | 2009-04-30 | 2010-03-30 | 夹持装置 |
US14/479,787 US9539648B2 (en) | 2009-04-30 | 2014-09-08 | Chuck device |
Applications Claiming Priority (2)
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JP2009-111447 | 2009-04-30 | ||
JP2009111447A JP5378056B2 (ja) | 2009-04-30 | 2009-04-30 | チャック装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US13/258,848 A-371-Of-International US9016699B2 (en) | 2009-04-30 | 2010-03-30 | Chuck device |
US14/479,787 Division US9539648B2 (en) | 2009-04-30 | 2014-09-08 | Chuck device |
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WO2010125887A1 true WO2010125887A1 (ja) | 2010-11-04 |
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PCT/JP2010/055766 WO2010125887A1 (ja) | 2009-04-30 | 2010-03-30 | チャック装置 |
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US (2) | US9016699B2 (ja) |
JP (1) | JP5378056B2 (ja) |
CN (1) | CN102413973B (ja) |
WO (1) | WO2010125887A1 (ja) |
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US8616561B2 (en) * | 2012-04-10 | 2013-12-31 | Apex Brands, Inc. | Locking chuck |
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WO2017024544A1 (en) * | 2015-08-12 | 2017-02-16 | Apex Brands, Inc. | Locking chuck |
CN205702524U (zh) * | 2016-04-25 | 2016-11-23 | 浙江三鸥机械股份有限公司 | 一种自锁式钻夹头 |
CN105784413A (zh) * | 2016-04-27 | 2016-07-20 | 镇江市建科工程质量检测中心有限公司 | 外墙节能检测用钻芯机 |
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JP6787571B2 (ja) * | 2016-12-06 | 2020-11-18 | ユキワ精工株式会社 | チャック装置 |
WO2019019165A1 (en) * | 2017-07-28 | 2019-01-31 | Jacobs Chuck Manufacturing (Suzhou) Company, Ltd. | LOCKING CHUCK WITH ANTI-VIBRATION FUNCTION |
CN109940200A (zh) * | 2019-04-28 | 2019-06-28 | 柳尧亭 | 离合装置、钻夹头、动力工具和钻夹头双向转动的方法 |
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US9352397B2 (en) | 2012-04-10 | 2016-05-31 | Apex Brands, Inc. | Locking chuck |
Also Published As
Publication number | Publication date |
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US9539648B2 (en) | 2017-01-10 |
CN102413973A (zh) | 2012-04-11 |
US20120007322A1 (en) | 2012-01-12 |
US9016699B2 (en) | 2015-04-28 |
CN102413973B (zh) | 2014-09-24 |
US20140375000A1 (en) | 2014-12-25 |
JP5378056B2 (ja) | 2013-12-25 |
JP2010260122A (ja) | 2010-11-18 |
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