CN1943933A - Dead spindle chucking system with sliding sleeve - Google Patents

Dead spindle chucking system with sliding sleeve Download PDF

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Publication number
CN1943933A
CN1943933A CNA2006101627400A CN200610162740A CN1943933A CN 1943933 A CN1943933 A CN 1943933A CN A2006101627400 A CNA2006101627400 A CN A2006101627400A CN 200610162740 A CN200610162740 A CN 200610162740A CN 1943933 A CN1943933 A CN 1943933A
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CN
China
Prior art keywords
chuck
sleeve
power drill
chuck body
casing
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Granted
Application number
CNA2006101627400A
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Chinese (zh)
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CN1943933B (en
Inventor
丹尼尔·普齐奥
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Black and Decker Inc
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Black and Decker Inc
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Filing date
Publication date
Priority claimed from US11/508,994 external-priority patent/US7806636B2/en
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of CN1943933A publication Critical patent/CN1943933A/en
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Publication of CN1943933B publication Critical patent/CN1943933B/en
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Abstract

A power driver may include a housing, a tool chuck and a sleeve. The tool chuck may have a chuck body mounted for rotation on the housing and supporting threadless chuck jaws, and a chuck drive shaft mounted for rotation on the chuck body. The sleeve may be mounted on the tool chuck for adjustment into a drill drive mode to rotationally lock together the chuck body and the chuck drive shaft, and a chuck mode to rotationally lock together the chuck body and the housing.

Description

Dead spindle chucking system with sliding sleeve
Technical field
The present invention relates to a kind of annex is connected to tool chuck on the power drill/driver, particularly a kind of tool chuck with claw, this chuck can be by the power actuated of driver transmission.
Background technology
The application requires the priority in the 60/712nd, No. 403 U.S. Provisional Patent Application of submission on August 31st, 2005, now the disclosed full content of this application is attached to herein with for referencial use.
With the 60/672nd, No. 503 (' 503 application) submitting on April 19th, 2005, name is called the U. S. application of " TOOLCHUCK WITH POWER TAKE OFF AND DEAD SPINDLE FEATURES ", is attached to herein with for referencial use.' 503 the application by example introduced different patterns comprising the fixing pattern under selectively the operation power drill/driver.Under the fixing pattern, start driver and move (as opening and closing) tool chuck then.In the fixing process, chuck body and claw do not rotate.Because the user is not easy to be subjected to the influence of (or observing) any rotary part, this just is called what is called " dead axle " feature.
Tool chuck is for there being sliding sleeve, and sliding sleeve can selectively be installed (promptly rotation is fixing) on the casing of power drill/driver.When sleeve installs, driver starts up to the actuation tool chuck.In some cases, sleeve selectively is installed in chuck body on the casing of power drill/driver.Here, in the chuck actuating process, chuck body and claw do not rotate, thereby influence dead spindle features.
Traditional sliding sleeve tool chuck it has been generally acknowledged that the performance that can reach can be provided.Yet if chuck body is selectively to be installed on the casing of power drill/driver, motor turns round forward and is fastened on the annex up to claw simultaneously, will cause the motor stall this moment so.When tool chuck is driven to when reaching the state of opening fully, motor also might stall.The motor stall might damage motor, destroys the instability of transmitting and/or causing fastening torque.
Made extensive work in order to overcome above-mentioned shortcoming.For example, power drill/driver can be furnished with electric clutch.Here, when sliding sleeve selectively engaged with the casing of power drill/driver, the torque limit that electric clutch can apply it was in fastening torque (fixing in the start-up course) scope of an expectation.Perhaps, be used in the mechanical clutch of the power drill/driver of the torque that applies with restriction under boring/drive pattern usually, also can use with the torque limit that will apply in fastening torque (fixing in the start-up course) scope of an expectation.
Electronic and mechanical clutch recited above all is not immaculate.Such as, power drill/driver need be equipped with multiple operation speed.If selected service speed be can not determine and proofreaied and correct to electronic equipment, the torque of electric clutch transmission will change in the chuck start-up course so.During the fastening torque of the torque that applies as restriction in the chuck start-up course when the mechanical clutch of power drill/driver an expectation, also same situation can appear.
Summary of the invention
According to an exemplary and nonrestrictive embodiment, power drill/driver can comprise casing and tool chuck.Tool chuck has rotation and is installed in the chuck body that also supports no screw thread claw on the casing and rotates the chuck driveshaft that is installed on the chuck body.Sleeve is installed on the tool chuck, in order to be arranged to the drive pattern of holing, so that chuck body and chuck driveshaft are locked together rotatably, can also be arranged to the fixing pattern, so that chuck body and casing spin locking are in the same place.
According to another exemplary and nonrestrictive embodiment, power drill/driver can comprise casing and tool chuck.Tool chuck has the chuck body that supports no screw thread claw and rotates the chuck driveshaft that is installed on the chuck body.Sleeve arrangement is in the same place chuck body and chuck driveshaft spin locking in order to be arranged to the drive pattern of holing, and is arranged to the fixing pattern, and chuck body and casing spin locking are in the same place.
According to another exemplary and nonrestrictive embodiment, power drill/driver comprises casing.The power shaft rotation is installed on the casing, and the output shaft rotation is installed on the casing.Tool chuck is assemblied on the output shaft.Sleeve is assemblied on the tool chuck.Sleeve is adjusted to second axial location from first axial location, to drive power shaft away from output shaft.
Below in conjunction with accompanying drawing above-mentioned feature of the present invention and other feature are comprised that structure and combination that parts are various and trendy are explained in detail.Should understand described in the embodiment be exemplary and nonrestrictive.Do not departing from the scope of the present invention down, principle of the present invention and feature can be applied among different and a plurality of embodiment.
Description of drawings
From accompanying drawing and the following detailed description, can fully understand the present invention.Same tag in the accompanying drawing is used to represent same parts, and these marks just are used to explain the present invention and unrestricted the present invention.
Fig. 1 is the cutaway view according to the boring/drive pattern lower chuck system of exemplary non-limiting example of the present invention;
Fig. 2 is the fragmentary, perspective view of chuck system shown in Figure 1;
Fig. 3 is under boring/drive pattern for chuck system shown in Figure 1 and has the cutaway view of bias voltage (bias);
Fig. 4 is the fragmentary, perspective view of chuck system shown in Figure 3;
Fig. 5 is under the hammering pattern for chuck system shown in Figure 1 and has the cutaway view of bias voltage;
Fig. 6 is the fragmentary, perspective view of chuck system shown in Figure 5;
Fig. 7 is that chuck system shown in Figure 1 is in the cutaway view under the fixing pattern;
Fig. 8 is the fragmentary, perspective view of chuck system shown in Figure 7;
Fig. 9 is according to being in tool chuck fragmentary, perspective view under boring/drive pattern in the exemplary non-limiting example of the present invention;
Figure 10 and 11 is the decomposition diagram of tool chuck shown in Figure 9;
Figure 12 is that tool chuck shown in Figure 9 is in the cutaway view under boring/drive pattern;
Figure 13 is that tool chuck shown in Figure 9 is in the cutaway view under the assembly mode;
Figure 14 is that tool chuck shown in Figure 9 is in the cutaway view under the fixing pattern.
The specific embodiment
In the described embodiment of Fig. 1-8, Fig. 1-8 has schematically described an exemplary non-restrictive example of chuck system.Chuck system comprises tool chuck 50, and this chuck is assemblied in and is used for fixing annex (as drill bit) on the power drill/driver (as drilling machine).But can understand, tool chuck 50 also can suitably be assemblied in and be used for fixing multiple annex (except that drill bit) on the multiple power drill/driver (except that drilling machine).
A. structure
As shown in Figure 1, 2, but tool chuck 50 comprises chuck body 52, sleeve 60 and the claw (not shown) of support chuck driving shaft 55.Chuck driveshaft 55 rotations are installed on the chuck body 52.Chuck driveshaft 55 links together securely with the output shaft 30 of power drill/driver.Relative rotation between chuck driveshaft 55 and the chuck body 52 can actuation tool chuck 50 (promptly open and close claw).
For example, tool chuck 50 is equipped with " propeller " formula claw (not shown).Here, the front end of chuck driveshaft 55 is provided with radially to inner face screw thread 58.With the structural similarity described in ' 503 applications, radially interact to the screw thread of face radially outward of inner face screw thread 58 with chuck actuating screw (not shown), the chuck actuating screw can support claw.Interaction between the screw thread 58 of chuck driveshaft 55 and the screw thread of chuck actuating screw can make claw move forward and backward vertically with respect to chuck body 52.As can be seen, chuck actuating screw and chuck body 52 can lock together rotatably by claw.
Sleeve 60 and chuck body 52 have mating feature, and sleeve 60 can be in the same place in axial motion mutually and spin locking with chuck body 52 by this.For example, sleeve 60 has forward (forward) spline 63 (as shown in Figure 8) and is used for interacting with the spline 53 of chuck body 52.Sleeve 60 has backward (rearward) spline 66 (as shown in Figure 7) and is used for selectively engaging with the spline 56 of chuck driveshaft 55.Sleeve 60 has sleeve lug 68 and is used for selectively engaging with the depression 98 of end cap 94.
Power drill/driver comprises casing 90.Casing 90 comprises main body 92 and the end cap 94 that is assembled together.In alternative embodiment, main body 92 and end cap 94 can be as a whole, i.e. integrative-structure.Casing 90 can support power shaft 10, output shaft 30 and hammer mechanism 70.
Power shaft 10 rotations are installed on the main body 92.Can set bearing 2 (as needle bearing) in order to be easy to the relative rotation between power shaft 10 and the main body 92.Power shaft 10 (not shown) that is connected with the output of power drill/driver transmission device.Can suitably use multiple different power drill/driver transmission device well known in the art.The front end of power shaft 10 comprises blind hole 12.Blind hole 12 can be held an end of output shaft 30.Power shaft 10 comprises flange 14.Has the lug 16 (as shown in Figure 2) of driving on the axial face forward of power shaft 10.Drive the end (as shown in Figure 8) that lug 16 has the inclined-plane that is tapered.
Output shaft 30 rotations are installed on the end cap 94.Output shaft 30 is support and connection portion 20 regularly.Has driven lug 26 on the axial face backward of connecting portion 20.Driven lug 26 has the end (as shown in Figure 8) on the inclined-plane that is tapered.The driven lug 26 of connecting portion 20 interacts with the driving lug of power shaft 10 16, will be described in detail below.Can set bearing 4 so that the relative rotation between output shaft 30 and the end cap 94.Output shaft 30 can be realized axially-movable by bearing 4.The axially-movable of output shaft 30 is subjected to the restriction of the flange 34 of connecting portion 20 and output shaft 30.Can between bearing 4 and flange 34, set the spring (not shown), be used for influencing output shaft 30 with respect to casing 90 vertically forwards to motion.
Hammer mechanism 70 comprises rotation ratchet 72, rotation fixedly ratchet 74 and cam ring 76.As shown in Figure 1, rotation ratchet 72 and power shaft 10 can as a wholely be integrative-structure.In interchangeable embodiment, rotation ratchet 72 is two separating and different parts of can being fixed together with power shaft 10.But fixedly ratchet 74 fixing rotatably and axially-movable of rotation with respect to the main body 92 of casing 90.Rotation fixed ratchet wheel 74 has centre bore, and power shaft 10 can extend by this hole.Cam ring 76 comprises exercisable control lever of user or sleeve, selectively ratchet 72,74 is engaged.
Spring 6 is arranged between the flange 14 of rotation fixed ratchet wheel 74 and power shaft 10.Spring 6 can influence rotation fixed ratchet wheel 74 axially forward motion and engage with the operation of cam ring 76.The axial motion backward of rotation fixed ratchet wheel 74 is subjected to the restriction of cam ring 76.Spring 6 also can influence the motion of the axial forward direction of power shaft 10 (and therefore influencing rotatable ratchet 72).The motion of the axial forward direction of power shaft 10 is subjected to the restriction of connecting portion 20.
Pin 8 is slidingly mounted on (not shown) on end cap 94 circumference each axial hole on every side.The front end of pin 8 extends in the depression 98 of end cap 94.
B. operation
The operation of tool chuck 50 is according to following factor and difference: the axial location of (1) rotation fixed ratchet wheel 74; (2) axial location of sleeve 60.Different operator schemes comprises (but being not limited to) boring/drive pattern, hammering pattern and fixing pattern.
Fig. 1,2 is depicted as the boring/drive pattern under the chuck system no-bias.As shown in the figure, rotation fixed ratchet wheel 74 is in axially backward position (and break away from rotation ratchet 72), so hammer mechanism 70 is in halted state.Simultaneously, sleeve 60 is positioned at axial forward facing position.In this case, the spline 56 (as shown in Figure 7) of chuck driveshaft 55 engages to spline 66 with the back of sleeve 60, and chuck body 52, chuck driveshaft 55 and sleeve 60 just can be in the same place by spin locking like this, and rotate together as a unit.Because chuck body 52 is in the same place with chuck driveshaft 55 spin lockings, tool chuck 50 just can not become flexible in operation.
The user starts driver with rotation driving power shaft 10 then, makes it with respect to 74 rotations of rotation fixed ratchet wheel.Power shaft 10 rotates driving output shaft 30 by the joint that drives between lug 16 and the driven lug 26.Under the effect of spring 6, the inclined-plane that is tapered of driving lug 16 surpasses being tapered the inclined-plane of driven lug 26 and is inserted in the connecting portion 20.Under this state, will provide torque to connect, in this torque connect, all torque transfer of power shaft 10 were to output shaft 30.Output shaft 30 rotary drive tool chucks 50.
To similar shown in Fig. 1,2, be boring/drive pattern shown in Fig. 3,4, different is that chuck system is in bias state.Such as, when the user was pressed against annex (as drill bit) on the workpiece, bias voltage (perhaps external force) had just taken place.As shown in the figure, bias voltage can overcome the flange 34 of output shaft 30 and the influence of the spring (not shown) between the bearing 4, Move tool chuck 50 on respect to axially backward the direction of casing 90 (and therefore mobile output shaft 30 and power shaft 10).
Therefore output shaft 30 (and tool chuck 50) axially backward motion be subjected to pressing the restriction of the flange 34 of bearing 4.Like this, because axially moving backward of the assembly due to the bias voltage just is restricted, therefore rotate ratchet 72 and be kept away from rotation fixed ratchet wheel 74 (just hammer mechanism 70 keeps stopping), and sleeve 60 is kept away from end cap 94.After bias voltage was removed, assembly will be got back to the state shown in Fig. 1,2.
Fig. 5,6 is depicted as the hammering pattern of chuck system bias voltage.The user rotation fixed ratchet wheel 74 is moved on axial forward direction and the influence that overcomes spring 6 to realize the hammering pattern.Because chuck system is biased, output shaft 30 (relying on connecting portion 20), mobile power shaft 10 (and therefore moving rotation ratchet 72) and overcome the influence of spring 6 on axial backward direction.In this state, rotation fixed ratchet wheel 74 engages with rotation ratchet 72.Be appreciated that after removing bias voltage from chuck system spring 6 can make rotation ratchet 72 (and power shaft 10 and output shaft 30) move to axial position forward, this can make ratchet 72,74 break away from.
The user starts driver then, drive power shaft 10 (with rotating ratchet 72 together) with rotation, and power shaft 10 will be with respect to 74 rotation of spinning roller fixed ratchet wheel.If chuck system keeps bias voltage, the relative rotation between the ratchet 72,74 just causes power shaft 10, output shaft 30 and tool chuck 50 with respect to casing 90 relative displacement to take place so, thereby produces reciprocal axially-movable.For example, as shown in the figure, rotation ratchet 72 chord commentaries on classics fixed ratchet wheel 74 all has tooth separately.When the tooth of rotation ratchet 72 rode on the tooth that rotates fixed ratchet wheel 74, rotation ratchet 72 was vertically away from rotation fixed ratchet wheel 74.When tooth each other through out-of-date, be applied to bias voltage on the chuck system and make rotation ratchet 72 get back to axial location shown in Fig. 5,6.Like this, after driver starts, tool chuck 50 will rotate and be axially reciprocal.
Fig. 7,8 is depicted as the fixing pattern.As just example, power drill/driver can be when the non-bias voltage of chuck system (as shown in the figure) be under the fixing pattern and operate.Rotation fixed ratchet wheel 74 is in axially position (and breaking away from rotation ratchet 72) backward, so that hammer mechanism 70 stops.Simultaneously, the user can move to axially position backward with sleeve 60.In this axially-movable process, the back spline 56 to spline 66 and chuck driveshaft 55 of sleeve 60 breaks away from (thereby chuck driveshaft 55 is with respect to chuck body 52 rotations), and sleeve lug 68 can enter in the depression 98 of end cap 94 (thereby sleeve 60 and chuck body 52 can rotate on the casing 90 that is installed in power drill/driver).
When sleeve lug 68 enters depression 98, therefore sleeve lug 68 is backward directions drive pin 8 (and drive power shaft 10) and overcome the influence of spring 6 vertically.Output shaft 30 (and so connecting portion 20) under the effect of the spring (not shown) between flange 34 and the bearing 4, remains on axial forward facing position.Thus, axially moving backward of power shaft 10 will cause driving the driven lug 26 that lug 16 partly leaves connecting portion 20, can be on the be tapered inclined-plane (as shown in Figure 8) of circumferencial direction in the face of driven lug 26 so that drive the inclined-plane that is tapered of lug 16.
The user can start driver and rotate driving power shaft 10.Power shaft 10 rotates by the joint that drives lug 16 and driven lug 26 and drives output shaft 30.Output shaft 30 is with respect to chuck body 52 (being installed on the casing 90 by sleeve 60 rotations) rotation drive chuck driving shaft 55.As described in ' 503 applications, the relative rotation of (and so chuck actuating screw and claw) is with actuation tool chuck 50 (just opening and/or close claw according to the direction of operating of power drill/driver) between chuck driveshaft 55 and the chuck body 52.In addition, during chuck actuating, chuck body and claw do not rotate.Because the user is not easy to be subjected to the influence of (or observing) any rotary part, this just is called what is called " dead axle " feature.
In the chuck actuating process, when tool chuck 50 does not does not open or close (for example when claw is is still opening or closing) fully, power shaft 10 can drive output shaft 30 rotatably by the interaction that drives between lug 16 and the driven lug 26.When tool chuck 50 is closed (annex that is with or without insertion) fully or opened fully, the revolving force that driving lug 16 affacts on the driven lug 26 will strengthen.This revolving force is increased to a threshold value, matches on the inclined-plane that is tapered of this lug 16,26 to drive power shaft 10 and overcome the influence of spring 6 on axial backward directions, therefore drives the end that lug 16 slips over driven lug 26.In this case, drive lug 16 and driven lug 26 a clutch feature can be provided, be used for limiting the torque that is applied in the chuck actuating process.
Be appreciated that the value that drives the required revolving force of power shaft 10 on axial backward direction is subjected to the influence as the spring constant of the angle of inclination on the inclined-plane that is tapered of lug 16,26 and/or spring 6.In addition, by the be tapered profile on inclined-plane of suitable design, can make the torque threshold of the torque threshold of fastened tools chuck 50 less than back off tool chuck 50, vice versa.
In the described embodiment of Fig. 9-14, Fig. 9-14 has schematically described an exemplary and nonrestrictive tool chuck 150.This tool chuck can be applicable to in the described chuck system in top.Shown in Fig. 9-14, tool chuck 150 receives the handle of annex 105 movably.
A. structure
Shown in Fig. 9-11, tool chuck 150 comprises chuck body 152.Chuck body 152 rotation support chuck driving shafts 155.In this exemplary and nonrestrictive embodiment, chuck driveshaft 155 has two assemblies that comprise lining 110 and drive sleeve 120.Lining 110 is connected on the output shaft 130 of power drill/driver securely.Lining 110 comprises spline 116 (as shown in figure 10), and spline 116 selectively cooperates to spline 166 (as shown in figure 11) with the back of sleeve 160.Lining 110 also comprises forward direction clutch surfaces 112 (as shown in figure 10), and forward direction clutch surfaces 112 cooperates to clutch surfaces 122 (as shown in figure 11) with the back of drive sleeve 120.
Drive sleeve 120 can be axially fixed on the chuck body 152.Bearing 107 (as ball bearing) is put between drive sleeve 120 and the chuck body 152, be beneficial to the relative rotation between assembly 120 and 152.Bearing 107 connects by (for example) carriage or they can unclamp.Bearing 107 can keep between the annular groove 151,121 (as shown in figure 10) that is provided respectively by chuck body 152 and drive sleeve 120.Drive sleeve 120 is provided with radially to inner face screw thread 128.Radially interact to the screw thread of face radially outward 188 of inner face screw thread 128 with chuck actuating screw 180.Like this, drive sleeve 120 just can be threaded onto chuck actuating screw 180.
Spring 106 remains between chuck body 152 and the lining 110 (firmly being connected on the output shaft 130).Spring 106 influences chuck body 152 (and so drive sleeve 120) on direction after axially.The axial reverse of chuck body 152 is subjected to pressing the restriction of clutch surfaces 122 of drive sleeve 120 of the clutch surfaces 112 of lining 110.
Chuck actuating screw 180 comprises radial passage 186, and claw 101 can slide via these passages respectively.Radial passage 186 is rotatably fixed to chuck actuating screw 180 on the claw 101.Interaction between the screw thread 128 and 188 causes that chuck actuating screw 180 advances in the axial direction with respect to chuck body 152 or retreats.
The front end of chuck body 152 supports noses 140 and pawl fixator 145 securely.Noses 140 are taper, and around pawl fixator 145.Pawl fixator 145 has tipper 147 (as shown in figure 10), and claw 101 can slide through these grooves respectively.Claw 101 has the tab 103 that can slide along the outline that is tapered of pawl fixator 145.The radially inner surface pressure of noses 140 is removed from the groove 147 of pawl fixator 145 to prevent claw 101 by the surface radially outward of tab 103.Be appreciated that chuck actuating screw 180, noses 140 and pawl fixator 145 can be in the same place by claw 101 spin lockings.
Sleeve 160 can be installed on the chuck body 152 by mating feature, and axially-movable and spin locking be together mutually by mating feature assembly 152,160.For example, sleeve 160 has forward direction spline 163 (as shown in figure 10), and forward direction spline 163 interacts with the spline 153 (as shown in figure 10) of chuck body 152.Sleeve 160 has depression 168 (as shown in figure 11), in order to selectively to engage with the lug 198 of casing 190.
The axial location of sleeve 160 (with respect to chuck body 152) is subjected to the influence of lock pin 157.In the embodiment that changes, be provided with a plurality of lock pins 157.Lock pin 157 is by the radially outside bias voltage of spring 159.Lock pin 157 and spring 159 are contained in the depression of chuck body 152.The interaction of the groove 167 of lock pin 157 and sleeve 160 so that influence the axial location of sleeve 160, will be described in detail below.
B. operation
Tool chuck 150 can be operated with different mode according to the difference of sleeve 160 axial locations.These different operation modes comprise (but being not limited to) boring/drive pattern, assembly mode and fixing pattern.
Figure 12 shows that boring/drive pattern.As shown in the figure, sleeve 160 is positioned at the axial centre position with respect to chuck body 152.In this state, between two inclined-planes 161,162 that lock pin 157 sets in groove 167.The axial location of sleeve 160 in use can be offset.During this skew, inclined-plane 161,162 and spring-loaded lock pin 157 interacts, to influence the axial centre position of sleeve 160 shown in getting back to.
In addition, the spline 116 of lining 110 engages to spline 166 with the back of sleeve 160, causes chuck body 152, chuck driveshaft 155 (comprising lining 110 and drive sleeve 120) and sleeve 160 to lock together rotatably, and as a unit rotation.Like this, tool chuck 150 can not become flexible at work.
The user starts driver, and rotation drives output shaft 130, drives output shaft 130 rotary drive tool chuck 150 and annex 105 again successively.
Figure 13 shows that assembly mode.User's moving sleeve 160 is to axial forward location, to realize assembly mode.In this axially-movable, the inclined-plane 161 of groove 167 is radially driving lock pin 157 on the inward direction, and overcomes the influence of spring 159.Sleeve 160 remains on axial forward location versatilely, causes the part of lining 110 to come out.
The expose portion of lining 110 can be grasped by instrument, with permission tool chuck 150 is assembled on the output shaft 130 of power drill/driver, perhaps it is unloaded from output shaft 130.In case when releasing activity kept, inclined-plane 161 and spring-loaded lock pin 157 just can interact, so that sleeve 160 is got back to axial centre position as shown in figure 12.
Figure 14 shows that the fixing pattern.At this, the user can move on to sleeve 160 axial back to the position.When this initially moved axially, the inclined-plane 162 of groove 167 was radially driving lock pin 157 on the inward direction, and overcomes the influence of spring 159.In further moving axially, lock pin 157 (under the effect of spring 159) radially outward direction moves, and strides across inclined-plane 164.
In addition, the back spline 116 to spline 166 disengaging linings 110 of sleeve 160 is so that chuck driveshaft 155 (comprising lining 110 and drive sleeve 120) can relative chuck body 152 rotations.The lug 198 of end cap 194 enters into the depression 168 of sleeve 160.In this state, sleeve 160, chuck body 152, noses 140, pawl retainer 145 and claw 101 are installed on the casing 190 of power drill/driver revolvably.
The user starts driver with rotation driving output shaft 130 then.Output shaft 130 rotatable driving linings 110.Lining 110 rotates by the joint between interface 112 and 122 and drives drive sleeve 120.Drive sleeve 120 is with respect to 180 rotations of chuck actuating screw, and its (by claw 101, noses 140, pawl retainer 145, chuck body 152 and sleeve 160) remains on the casing 190.This relative rotation causes chuck actuating screw 180 by radially to inner face screw thread 128 and the interaction between the face screw thread 188 radially outward, advances in axial direction or retreats (according to the direction of rotation of drive sleeve 120).This moving of chuck actuating screw 180 can push away or draw claw 101 (by 147 guidings of the tipper on the pawl retainer 145), so that it opens or be closed.
During chuck actuating, sleeve 160, chuck body 152, noses 140, pawl retainer 145, claw 101 and chuck actuating screw 180 keep being installed in rotatably on the casing 190, chuck actuating screw 180 can move (by rotatablely moving of drive sleeve 120) in the axial direction relative to chuck body 152 simultaneously, to open or closed claw 101.Because the user is not easy to be subjected to the influence of (or observing) any rotary part, this just is called as what is called " dead axle " feature.
Output shaft 30 is with respect to chuck body 52 (it is installed on the casing 90 rotatably by sleeve 60) rotation drive chuck driving shaft 55.As described in ' 503 applications, the actuatable tool chuck 50 of relative rotation (just the direction of operating according to power drill/driver opens and/or closed claw) between chuck driveshaft 55 and the chuck body 52 (and so chuck actuating screw and claw).In addition, in the chuck actuating process, chuck body and claw do not rotate.
In the chuck actuating process, when tool chuck 150 does not does not open or close fully (when still opening or closing such as claw 101), lining 110 drives drive sleeve 120 by the rotation of the interaction between the interface 112 and 122.When tool chuck 150 was closed (annex 105 that is with or without insertion) fully or opened fully, the revolving force that lining 110 is applied on the drive sleeve 120 can strengthen.This revolving force is increased to a threshold value, and interface 112 and 122 will get out of the way (or slip) under this threshold values, with the torque that applies in the restriction chuck actuating process.When interface 112 and 122 slided, drive sleeve 120 (with chuck body 152 and sleeve 160) will be vertically forwards to the influence that is driven and overcomes spring 106.Yet, should be appreciated that this (when the occurring in the clutch slip) deficiency that axially travels forward is so that the lug 198 of end cap 194 breaks away from the depression of sleeves 160.
It will be appreciated that the value axially forwards upwards driving drive sleeve 120 required revolving forces is subjected to the influence as the spring constant of interface 112 and 122 geometrical constructions and/or spring 106.In addition, by the geometrical construction of suitable design interface 112 and 122, make the torque threshold of the torque threshold of fastened tools chuck 150 less than back off tool chuck 150, vice versa.

Claims (17)

1. power drill/driver comprises:
Casing;
Tool chuck has:
Chuck body, rotation be installed on the casing and support no screw thread claw and
Chuck driveshaft, rotation is installed on the chuck body; With
Be installed in the sleeve on the tool chuck, be used to be arranged to the drive pattern of holing, so that chuck body and chuck driveshaft spin locking are in the same place, and the fixing pattern, so that chuck body and casing spin locking are in the same place.
2. power drill/driver according to claim 1, wherein said sleeve is connected on the chuck body by the spline that cooperatively interacts.
3. power drill/driver according to claim 1, wherein said in the pattern of fixing middle sleeve disengaging chuck driveshaft.
4. power drill/driver according to claim 1, wherein said chuck driveshaft is installed in the inside of chuck body.
5. power drill/driver according to claim 1, wherein said sleeve is installed in the outside of chuck body.
6. power drill/driver comprises:
Casing;
Tool chuck has:
Chuck body, support no screw thread claw and
Chuck driveshaft, rotation is installed on the chuck body; With
Sleeve arrangement is used to be arranged to the drive pattern of holing, so that chuck body and chuck driveshaft spin locking are in the same place, and the fixing pattern, so that chuck body and casing spin locking are in the same place.
7. power drill/driver according to claim 6, wherein said sleeve arrangement is connected on the chuck body by the spline that cooperatively interacts.
8. power drill/driver according to claim 6, wherein said in the pattern of fixing middle sleeve device disengaging chuck driveshaft.
9. power drill/driver according to claim 6, wherein said chuck driveshaft is installed in the inside of chuck body.
10. power drill/driver according to claim 6, wherein said sleeve arrangement is installed in the outside of chuck body.
11. a power drill/driver comprises:
Casing;
Power shaft, rotation is installed on the casing;
Output shaft, rotation is installed on the casing;
Tool chuck is installed on the output shaft;
Sleeve is installed on the tool chuck, and can adjust to second axial location from first axial location, to drive power shaft away from output shaft.
12. power drill/driver according to claim 11, wherein said tool chuck comprise the chuck body of spin locking to the sleeve.
13. power drill/driver according to claim 11, wherein said sleeve is realized the boring drive pattern at first axial location, and wherein power shaft is in the same place with the output shaft spin locking.
14. power drill/driver according to claim 11, wherein said sleeve is in the casing rotation relatively of first axial location.
15. power drill/driver according to claim 11, wherein said sleeve is realized the fixing pattern at second axial location, wherein power shaft output shaft rotation relatively.
16. power drill/driver according to claim 11, wherein said sleeve rotatably locks onto on the casing at second axial location.
17. power drill/driver according to claim 11, wherein said tool chuck supports no screw thread claw.
CN2006101627400A 2005-08-31 2006-08-31 Dead spindle chucking system with sliding sleeve Expired - Fee Related CN1943933B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US71240305P 2005-08-31 2005-08-31
US60/712,403 2005-08-31
US11/508,994 US7806636B2 (en) 2005-08-31 2006-08-24 Dead spindle chucking system with sliding sleeve
US11/508,994 2006-08-24

Publications (2)

Publication Number Publication Date
CN1943933A true CN1943933A (en) 2007-04-11
CN1943933B CN1943933B (en) 2012-11-14

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CN2006101627400A Expired - Fee Related CN1943933B (en) 2005-08-31 2006-08-31 Dead spindle chucking system with sliding sleeve

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797744B (en) * 2009-02-05 2014-06-18 创科电动工具科技有限公司 Power tool chuck assembly with hammer mechanism
CN104882802A (en) * 2015-06-29 2015-09-02 吴扬华 Solar-energy-powered power distribution cabinet
CN104901180A (en) * 2015-06-29 2015-09-09 吴扬华 Power distribution cabinet with positioning protrusion and spacing sensor
CN104993400A (en) * 2015-06-29 2015-10-21 温岭市海玛进出口有限公司 Heat-radiation type power distribution cabinet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013106520B4 (en) * 2013-06-21 2024-02-08 Röhm Gmbh Drilling device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848779A (en) * 1987-04-02 1989-07-18 Black & Decker Inc. Keyless chuck
US6196554B1 (en) * 1998-12-15 2001-03-06 Power Tool Holders Incorporated Locking chuck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797744B (en) * 2009-02-05 2014-06-18 创科电动工具科技有限公司 Power tool chuck assembly with hammer mechanism
CN104882802A (en) * 2015-06-29 2015-09-02 吴扬华 Solar-energy-powered power distribution cabinet
CN104901180A (en) * 2015-06-29 2015-09-09 吴扬华 Power distribution cabinet with positioning protrusion and spacing sensor
CN104993400A (en) * 2015-06-29 2015-10-21 温岭市海玛进出口有限公司 Heat-radiation type power distribution cabinet

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Publication number Publication date
JP2007062009A (en) 2007-03-15
CN1943933B (en) 2012-11-14

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