CN104440798B - Handheld machine tool and bottom plate adjusting mechanism applied to same - Google Patents
Handheld machine tool and bottom plate adjusting mechanism applied to same Download PDFInfo
- Publication number
- CN104440798B CN104440798B CN201310422578.1A CN201310422578A CN104440798B CN 104440798 B CN104440798 B CN 104440798B CN 201310422578 A CN201310422578 A CN 201310422578A CN 104440798 B CN104440798 B CN 104440798B
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- Prior art keywords
- cam surface
- base plate
- housing
- plane
- operating parts
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
- B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a handheld machine tool on one hand. The handheld machine tool comprises a shell, a bottom plate and an adjusting mechanism. The adjusting mechanism comprises an operating part moved between the first position and the second position, a non-threaded fastener used for fixing the bottom plate on the shell, a first cam surface driven by the operating part and a second cam surface mounted on the shell; at the first position, the first cam surface is engaged with the second cam surface, and the bottom plate is clamped on the shell; at the second position, the first cam surface and the second cam surface are disengaged, and the angle of the bottom plate relative to the shell is adjusted. The bottom plate is fixed on the shell through the non-threaded fastener, and failure of the adjusting mechanism due to rotation of a threaded fastener in the operation process is avoided, and accordingly reliability of the adjusting mechanism is ensured. Furthermore, the bottom plate can be fixed or released without extra auxiliary tools. On the other hand, the invention provides a bottom plate adjusting mechanism applied to the handheld machine tool.
Description
Technical field
The present invention relates to a kind of toolroom machine, more particularly to a kind of hand held power machine.It is used for work the invention further relates to one kind
The bottom plate adjusting mechanism of tool machine, more particularly to a kind of bottom plate adjusting mechanism for hand held power machine.
Background technology
Conventional hand held power machine generally includes a plane base plate, during cutting operation is carried out, in the bottom
The upper support toolroom machine, the bottom fits to provide the constant of the surface relative to workpiece to be processed with workpiece to be processed surface
Cutting angle.Many conventional hand held power machines of the prior art are equipped with an adjustable base plate, to allow user
Bottom is selected relative to the angle of toolroom machine housing, so as to provide the selected cutting relative to workpiece to be processed surface to user
Angle.Cutting planes are commonly known as oblique angle and are measured as orthogonal with workpiece relative to this angular adjustment of workpiece to be processed
The side-play amount in direction.
It is each such as screw or bolt that there is the hand held power machine in the conventional prior art of adjustable bottom to include for some
Such threaded fastener, it must be relaxed incites somebody to action described so as to adjusting and fastening the base plate with selected angle
Base plate is fixed on toolroom machine housing.But, the use of fastener needs to use inconvenient extra auxiliary for user
Assistant engineer has.And clamped using threaded fastener or release base plate, easily bring the uppity trouble of moment of torsion of clamping, turned round
Square crosses the premature failure that conference causes screw or bolt, and moment of torsion is too small, the possibility that base plate can be caused not yet clamped.
Some base plate angular adjustments of the prior art, for convenience user use, draw by nut or screw
Go out an extension bar, base plate regulation is can be carried out without extra aid, but due to the limitation of structure, should
Extension bar can only be rotated in limited scope, be that enough clamping force can not be produced to fix base plate the drawbacks of so produce
Or enough gaps can not be produced to be conducive to base plate to adjust.Meanwhile, another defect can be also brought, when extension bar is rotated
When, screw therein or bolt are possible to that extension bar can be followed to rotate, so that when cannot in the rotary course of extension bar
The fixation or release of base plate are realized, especially after by repeatedly regulation, screw thread is easy to that loosening occurs.Therefore, these
Either base plate angular adjustment is for the user inconvenient in the prior art, or it is less reliable.
The content of the invention
In order to solve the defect of above-mentioned prior art, it is an object of the invention to provide a kind of base plate angle it is easy to adjust,
Reliable hand held power machine.
In order to solve the defect of above-mentioned prior art, hand-held work to be used for it is another object of the present invention to provide one kind
The bottom plate adjusting mechanism of tool machine, the base plate adjustment structure can facilitate, the base plate angle reliably to hand held power machine is carried out
Regulation.
One aspect of the present invention is to provide a kind of hand held power machine, including housing, one be contained in housing
Interior motor, executive item, the biography that the power that motor is exported is passed to executive item of operation on workpiece to be processed
Motivation structure, a base plate being arranged on housing and one are used for governor motion of the regulating base board relative to the angle of housing, its
In, governor motion is used to secure a base plate to including an operating parts for moving between the first position and the second position, one
Non-threaded fastener on housing, the first cam surface driven by operating parts and the second cam surface on housing, the
One position, the first cam surface and the second cam surface are intermeshed, and base plate is clamped on housing, in the second place, the first cam
Face and the second cam surface are disengaged from, and base plate can be conditioned relative to the angle of housing.Will by use non-threaded fastener
Base plate is fixed on housing, it is to avoid the failure of governor motion caused by rotation of the threaded fastener in operation process, so that
Ensure the reliability of governor motion.Also, the fixation or release to base plate can be just realized without extra aid.
Another aspect of the present invention is to provide a kind of bottom plate adjusting mechanism for hand held power machine, hand-held work
Tool machine include housing, motor being contained in housing, the executive item of operation on workpiece to be processed, one will
The rotary motion of the motor is converted into the transmission mechanism of executive item motion and one is used for angle of the regulating base board relative to housing
The governor motion of degree, base plate is arranged on housing, wherein, governor motion is moved between the first position and the second position including one
Dynamic operating parts, first cam surface for securing a base plate to the non-threaded fastener on housing, driven by operating parts
With the second cam surface on housing, in first position, the first cam surface and the second cam surface are intermeshed, and base plate is pressed from both sides
Tightly on housing, in the second place, the first cam surface and the second cam surface are disengaged from, and base plate can relative to the angle of housing
It is conditioned.Secure a base plate on housing by using non-threaded fastener, it is to avoid threaded fastener is in operation process
The failure of governor motion caused by rotation, so that it is guaranteed that the reliability of governor motion.Also, can without extra aid
To realize fixation or release to base plate.
By the detailed description to realizing embodiments of the invention carried out below in conjunction with accompanying drawing, it is easy to understand of the invention
Above-mentioned situation and other situations, feature and advantage.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the base plate positioned at clamped position of the hand held power machine in first embodiment of the invention；
Fig. 2 is the schematic perspective view of the base plate positioned at off-position of the hand held power machine in first embodiment of the invention；
Fig. 3 is the section plan of the hand held power machine in Fig. 1；
Fig. 4 is the partial enlarged drawing of the governor motion of the hand held power machine in Fig. 3；
Fig. 5 is the axle of the governor motion for regulating base board relative to the angle of housing of the hand held power machine in Fig. 1
Mapping；
Fig. 6 is the upward view of the base plate positioned at clamped position of the hand held power machine in first embodiment of the invention；
Fig. 7 is that the base plate of the hand held power machine in first embodiment of the invention can be adjusted to multiple angles relative to housing
The schematic diagram of degree；
Fig. 8 is the schematic perspective view of the base plate positioned at clamped position of the hand held power machine in second embodiment of the invention；
Fig. 9 is the schematic perspective view of the base plate positioned at off-position of the hand held power machine in second embodiment of the invention；
Figure 10 is the section plan of the hand held power machine in Fig. 8；
Figure 11 is the partial enlarged drawing of the governor motion of the hand held power machine in Figure 10；
Figure 12 is the axle of the governor motion for regulating base board relative to the angle of housing of the hand held power machine in Fig. 8
Mapping；
Figure 13 is the upward view of the base plate positioned at clamped position of the hand held power machine in second embodiment of the invention；
Figure 14 is that the base plate of the hand held power machine in second embodiment of the invention can be adjusted to multiple relative to housing
The schematic diagram of angle.
Specific embodiment
Hand held power machine, generally includes a handle for being used for user's gripping, housing, the horse being contained in the housing
Up to, carry out to workpiece to be processed the executive item of operation and the power that motor is exported passed to the transmission mechanism of the executive item.
A base plate installed on the housing and one are can further include in some hand held power machines to be used to adjust bottom
Governor motion of the plate relative to the angle of housing.Hand held power machine described herein can be a kind of reciprocating saw, electric circular saw or
The hand held power machine with adjustable bottom such as electric router, but it is not limited only to the hand held power machine for including.
Specifically, Fig. 1-3 are referred to, a kind of hand held power machine 10 is which disclosed, preferably first implements
Example, the hand held power machine is a kind of reciprocating saw, and it includes housing 20, the motor 30 being contained in housing 20, to work to be processed
Part carries out the saw blade 40 of reciprocating cutting, the rotary motion of motor is converted into the reciprocating transmission mechanism 50 of saw blade, is installed
Base plate 60 on the housing 20 and relative to the angle rotatable of housing 20 and for regulating base board relative to the angle of housing
Governor motion 70.Well known to those skilled in the art, for reciprocating saw, executive item here is then saw blade, its driver
Structure is the reciprocating motion for the rotary motion of motor to be converted into saw blade.If hand held power machine is a kind of electric circular saw,
Executive item is then saw blade, and saw blade rotatably can cut to workpiece to be processed, and its transmission mechanism is for by the rotation of motor
The dynamic rotary motion for being converted into saw blade of transhipment.If hand held power machine is a kind of electric router, executive item is then milling cutter, milling cutter
Milling rotatably enough can be carried out to workpiece to be processed, its transmission mechanism is for the rotary motion of motor is converted into milling cutter
Rotary motion.Or to those skilled in the art, the hand held power machine can carry adjustable bottom for any one
The hand held power machine of plate.
Transmission mechanism 50 includes that the little gear 51 being connected with motor shaft is engaged with little gear 51 and transmits the big of rotary motion
Gear 52, the eccentric part 53 being arranged on the end face of gear wheel 52 are connected with eccentric part 53 and cause that eccentric part 53 is sliding in it
Dynamic sliding groove 54 and the reciprocating lever 55 being fixedly linked with sliding groove 54.Wherein, it is delivered to gear wheel 52 via little gear 51
Rotary motion is converted into the reciprocating motion of reciprocating lever 55 by the eccentric part 53 and sliding groove 54 that are arranged on gear wheel 52, past
The end of compound lever 55 is fixedly linked with saw blade 40, so as to drive saw blade 40 to move back and forth.Base plate 60 generally includes planar portions
61 and arcuation portion 62, planar portions 61 are used to contact to provide the surface relative to workpiece to be processed with the surface of workpiece to be processed
Constant cutting angle, arcuation portion 62 is generally used for the facility installed, and the fastener of fixed base plate is set in arcuation portion 62 so that tight
Firmware does not protrude from planar portions 61 so that ensure will not be with the Surface Interference of workpiece to be processed.
As shown in Figures 4 and 5, the bottom of the angle for regulating base board 60 relative to housing 20 in first embodiment is disclosed
Plate governor motion 70, the governor motion 70 includes that operating parts 71, fastener 72, support member 73, the first cam surface 74 and second are convex
Wheel face 75.Wherein operating parts 71 includes the operating portion 711 and connecting portion 712 for user's operation, and operating portion 711 preferably sets
It is set to operation spanner.Fastener 72 could be arranged at least one, preferably, two fasteners be used in the present embodiment,
They are presented in the form of threaded fastener.Fastener 72 further includes the first bolt 721, the first nut 722, the second spiral shell
The nut 724 of bolt 723 and second.First bolt 721 therein passes completely through the first through hole 63 on base plate 60 and partially passes through shell
Body 20, is connected in the end of the first bolt 721 with the screw threads for fastening of the first nut 722 for setting on the housing 20.Therein
Two bolts 723 pass completely through the second through hole 64 on base plate 60 and partially pass through housing 20, the second bolt 723 end with
The screw threads for fastening of the second nut 724 connection on the housing 20 is set.Operating parts 71 sets the support member 73 in housing 20
On, support member 73 is arranged between the first bolt 721 and the second bolt 723, operating parts 71 first position and the second place it
Between around first longitudinal direction axis V rotation, at least one fastener 72 define second longitudinal direction axis W, support member 73 define the 3rd indulge
To axis X, wherein first longitudinal direction axis V is not conllinear with second longitudinal direction axis W, preferably, first longitudinal direction axis V and second
Longitudinal axis W is parallel to each other, and first longitudinal direction axis V and the 3rd longitudinal axis X overlaps and sets, in first position, the quilt of base plate 60
Clamp on the housing 20, in the second place, base plate 60 can be conditioned relative to the angle of housing 20.First cam surface 74 is set
On the connecting portion 712 of operating parts 71, the second cam surface 75 is arranged on a pressing plate 76, and the pressing plate 76 is carried in the form of thin plate
For, it is respectively arranged with three through holes on pressing plate 76, two through holes are respectively used to passing through for the first bolt 721 and the second bolt 723,
Also one through hole is used for passing through for support member 73, and in first position, the first cam surface 74 is engaged with the second cam surface 75 so that
Base plate 60 is clamped on the housing 20, and in the second place, the first cam surface 74 is disengaged from the second cam surface 75 so that base plate
Sufficiently large gap is there is between 60 and housing 20 and enables that base plate 60 is conditioned relative to the angle of housing 20.Certainly,
Second cam surface 75 can also be by the elastic component that is arranged on support member 73（It is not shown）Towards the first cam 74 and the second cam
The intermeshing direction in face 75 biases.For the ease of the operation of operating parts 71, prevent the first bolt 722 to operating parts 71 first
Rotational interference between position and the second place, the operating parts 71 by such setting, the definition of operating portion 711 of operating parts 71 the
Four longitudinal axis Y, the connecting portion 712 of operating parts 71 defines the 5th longitudinal axis Z, wherein the longitudinal directions of the 4th longitudinal axis Y and the 5th
Axis Z is angled to be set, it is preferable that the 4th longitudinal axis Y is set with the 5th longitudinal axis Z into obtuse angle, so can then keep away
Exempt from the first bolt 722 to interfere and influence operating parts 71 to be not able to move to first position with connecting portion 712.
Well known to those skilled in the art, the operating portion 711 of operating parts 71 can also be arranged to other forms, such as button,
Knob, folding rod etc., the operating portion 711 of operating parts 71 when in the form of button, button first position and the second place it
Between movement so that the first cam surface and the second cam surface are being engaged and moved between being disengaged from, so as to realize base plate 60
Clamp and release；When in the form of knob, knob is between the first position and the second position for the operating portion 711 of operating parts 71
It is mobile so that the first cam surface and the second cam surface are being engaged and moved between being disengaged from, so as to realize the clamping of base plate 60
And release；When in the form of folding rod, after folding rod is opened, the arm of force is longer, and user can for the operating portion 711 of operating parts 71
With more labour-saving mobile folding rod between the first position and the second position so that the first cam surface and the second cam surface exist
Engage and moved between being disengaged from, so as to realize clamping and releasing for base plate 60.
Well known to those skilled in the art, so-called " fastener " can be that can realize securing a base plate on housing
Any structure type, " fastener " here could be arranged to the combination of the threaded fastener of bolt nut, it is also possible to be set to
The combination of the non-threaded fastener of clamp shaft and fixed plate, when being provided with the combination for non-threaded fastener, can on clamp shaft
To be not provided with screw thread, but the clamp shaft passes completely through the through hole of base plate and partially passes through housing, one end of clamp shaft with it is solid
Fixed board is connected, so that base plate is fixed on housing.Of course, it is possible to be arranged to multiple fasteners, such as 3 or 4 tight
Firmware, can be realized securing a base plate on housing, and the use of at least one fastener can also be arranged in multiple fasteners
The combination of the threaded fastener of bolt nut.
Well known to those skilled in the art, so-called " support member " can be any structure that can realize supporting operating parts
Form, " support member " here could be arranged to the form of pin, and the connecting portion 712 of operating parts 71 is set on support member 73, makes
Operating parts 71 rotated around support member 73, " support member " it is also possible that setting, formed in the connecting portion 712 of operating parts 71
There are the boss or groove of ring-type, then the groove or boss of adaptable shape are formed with housing, the ring-type of connecting portion 712 is convex
Platform is engaged with the annular recess on housing so that operating parts is supported by the annular recess of housing, or the ring-type of connecting portion 712 is recessed
Groove is engaged with the annular boss on housing so that operating parts is supported by the annular boss of housing, and the ring-type on such housing is recessed
Groove or annular boss then constitute the support member of support operating parts.
Well known to those skilled in the art, first longitudinal direction axis V and second longitudinal direction axis W not may be such that first collinearly
Longitudinal axis V and second longitudinal direction axis W misaligned any form, the first longitudinal direction axis V and second in preferred embodiment are indulged
It is parallel to each other to axis W, and in other embodiments, first longitudinal direction axis V can also intersect or different with second longitudinal direction axis W
Face, its main purpose is：Operating parts 71 and the non-coaxial setting of fastener 72, so that rotating what is produced because of operating parts 71
Moment of friction will not be further delivered on fastener 72, such that it is able to caused by effectively preventing the rotation by fastener 72
The failure of governor motion 70.
Well known to those skilled in the art, so-called " cam surface " refers to the planar section relative to certain component in its axle
The plane or curved surface extended upward to side, such as " cam surface " can also be arranged to two have rightabout inclined-plane or
Other forms being readily apparent that.Here the first cam surface 74 can be arranged directly on the connecting portion 712 of operating parts 71, also may be used
In the form of by other middlewares so that the motion of operating parts 71 can drive the first cam surface 74 to move.Here first
As long as the cam surface 75 of cam surface 74 and second has relative motion between the two, then can realize engagement between two cam surfaces or
It is disengaged from.Certainly, cam surface here is engaged or is disengaged from, the direct engagement between not necessarily two cam surfaces
Or be directly disengaged from, it is also possible to it is provided with middleware between two cam surfaces so that realized between two cam surfaces indirect
Engagement or be indirectly disengaged from.
The process that the base plate 60 in first embodiment is released and is clamped will be described in detail by Fig. 4-7 below.
As shown in figure 1, base plate 60 is located at clamped position, now operating parts 71 is located at the first position for clamping, base plate 60
Planar portions 61 are contacted with the surface of workpiece to be processed to provide the constant cutting angle on the surface relative to workpiece to be processed, work as needs
When carrying out base plate angular adjustment, when the angle of base plate such as being replaced with into the dotted line position in Fig. 7, by operating parts 71 from such as Fig. 1 institutes
The first position for showing moves to the second place as shown in Figure 2, and now, base plate 60 is located at off-position, and it is relative to housing
Angle then can be adjusted to the dotted line position in Fig. 7, when operating parts 71 moves to the second place from first position, the band of operating parts 71
Dynamic first cam surface 74 rotates so that the first cam surface 74 is disengaged from the second cam surface 75 so that base plate 60 and housing 20
Between produce enough gaps with movable base plate 60.In first position, two fasteners 72 fix on the housing 20 base plate 60,
By engaging so that there is no gap between base plate 60 and housing 20 for the first cam surface 74 and the second cam surface 75, also
It is to say, base plate 60 is clamped when the first cam surface 74 and the second cam surface 75 are intermeshed, as shown in Figure 5 and Figure 6, in base plate
The side in 60 arcuation portion 62 is provided with clamping plate 78, and the opposite side in arcuation portion 62 is provided with operating parts 71, base plate 60 and shell
Body 20 is clamped between operating parts 75 and clamping plate 78.In operating parts 71 second place is moved to from first position or from
During two positions move to first position, a connector 77 is combined and by least with the connecting portion 712 of operating parts 71
One fastener 72 limits its rotary motion, so as to the moment of friction that the pivot because of operating parts 71 is produced is delivered to the connector 77
On.Because the rotary motion of the connector 77 is prohibited, so that above-mentioned moment of friction then will not further be delivered to fastening
On part 72 such that it is able to the failure of the effective governor motion 70 for preventing from being likely to result in by the powered rotation of fastener.
Well known to those skilled in the art, the connector 77 can also be arranged to and the one of pressing plate 76.
As shown in figures 8-13, the hand held power machine with base plate angular adjustment in second embodiment of the invention is disclosed
100, preferably, still by taking a kind of reciprocating saw as an example.
Specifically, Fig. 8-10 are referred to, reciprocating saw is including housing 200, on housing 200 and relative to housing
The base plate 300 of 200 angle rotatables and the governor motion 400 of the angle for regulating base board 300 relative to housing 200, should
Reciprocating saw can also will not be repeated here including motor as in the first embodiment, executive item and transmission mechanism etc..Base plate
300 generally include planar portions 310 and arcuation portion 320, and planar portions 310 are used for relative to provide with the surface contact of workpiece to be processed
In the constant cutting angle on the surface of workpiece to be processed, arcuation portion 320 is generally used for the facility installed, by the tight of fixed base plate 300
Firmware is set in arcuation portion 320 so that fastener does not protrude from planar portions 310 to ensure to be done with the surface of workpiece to be processed
Relate to.At the position shown in Fig. 8, base plate 300 is clamped on housing 200 base plate 300, and base plate 300 is in the position shown in Fig. 9
When, base plate 300 is released and relative to the angle adjustable of housing 200.
As shown in FIG. 11 and 12, further disclose in second embodiment for regulating base board 300 relative to housing 200
Angle governor motion 400, the governor motion 400 includes that operating parts 410, fastener 420, the first cam surface 430, second are convex
Wheel face 440, clamping plate 450, pressing plate 460 and the micro-adjusting mechanism 470 for the gap between adjustment housings 200 and base plate 300.Its
Middle operating parts 410 includes the operating portion 411 and connecting portion 412 for user's operation, and operating portion 411 is preferably set to operation
Spanner.Fastener 420 could be arranged at least one, preferably, 1 fastener be used in the present embodiment, and it is with non-spiral shell
The form of line fastener is presented.Fastener 420 further includes clamp shaft 421 and fixture 422.Clamp shaft therein 421 is complete
The full first through hole 330 passed through on base plate 300 simultaneously partially passes through housing 200, in end and the fixture 422 of clamp shaft 421
Non-threaded to be fastenedly connected, preferably, clamp shaft 421 is non-threaded with fixture 422 to be fastenedly connected using such form reality
It is existing, plat part 423 is provided with clamp shaft 421, raised 424 are provided with fixture 422, when clamp shaft 421 is mounted to shell
After on body 200 and base plate 300 plat part 423 of clamp shaft 421, the fixture are inserted into by raised the 424 of fixture 422
422 are contained on clamping plate 450 and are clamped the limitation rotary motion of plate 450, are additionally provided with for being fastened and fixed in clamping plate 450
Part 422 simultaneously prevents the screw 451 that fixture 422 comes off from clamping plate 450.It is well known to those skilled in the art, other
In embodiment, clamp shaft 421 and the interference fit of fixture 422 or to be provided with collar on clamp shaft 421 above-mentioned to substitute
Fixture 422.Operating parts 410 set be arranged on clamp shaft 421 on, operating parts 410 between the first position and the second position around
First longitudinal direction axis X ' rotation, wherein the definition second longitudinal direction axis Y ' of clamp shaft 421, first longitudinal direction axis X ' and second longitudinal direction
Axis Y ' is overlapped and sets, and in first position, base plate 300 is clamped on housing 200, and in the second place, base plate 300 is relative to shell
The angle of body 200 can be conditioned.First cam surface 430 is arranged on the connecting portion 412 of operating parts 410, the second cam surface 440
It is arranged on pressing plate 460, the pressing plate 460 is provided in the form of thin plate, a through hole, the through hole is respectively arranged with pressing plate 460
For passing through for clamp shaft 421, in first position, the first cam surface 430 is engaged with the second cam surface 440 so that the quilt of base plate 300
Be clamped on housing 200, in the second place, the first cam surface 430 is disengaged from the second cam surface 440 so that base plate 300 with
Sufficiently large gap is there is between housing 200 and enables that base plate 300 is conditioned relative to the angle of housing 200.Work as base plate
300 be located at release position when, gap between usual base plate 300 and housing 200 keeps within the specific limits, if excessive,
Then when clamping, it is possible to gap is still present between base plate 300 and housing 200, if too small, upon release, having can
Energy base plate 300 is still clamped on housing 200, and gap here is excessive or too small generally because assembling or dimensional tolerance are drawn
Rise, for the ease of the gap between trace regulation housing 200 and base plate 300, a micro-adjusting mechanism 470 is provided with herein.
The micro-adjusting mechanism 470 includes the first inclined-plane 471, the second inclined-plane 472 and fine setting operating parts 473.Compact for structure, first is oblique
Face 471 can be arranged on pressing plate 460, the second inclined-plane 472 can with fine setting operating parts 473 produce interaction relation, i.e., when with
The motion of operating parts 473 is finely tuned, the second inclined-plane 472 can be made to be moved toward and away from the first inclined-plane 471, preferably,
External screw thread is provided with fine setting operating parts 473, the internal thread engaged with the external screw thread is provided with the second inclined-plane 472, it is micro-
Tune operating parts 473 is fixedly mounted on support 474 and its axial movement is limited, and when external screw thread rotates, then drives in being provided with
Second inclined-plane 472 of screw thread is moved toward and away from the first inclined-plane 471, between realizing between housing 200 and base plate 300
The regulation of gap.
Well known to those skilled in the art, the operating portion 411 of operating parts 410 can also be arranged to other forms, such as button,
Knob, folding rod etc., the operating portion 411 of operating parts 410 when in the form of button, button first position and the second place it
Between movement so that the first cam surface and the second cam surface are being engaged and moved between being disengaged from, so as to realize base plate 300
Clamp and release；When in the form of knob, knob is between the first position and the second position for the operating portion 411 of operating parts 410
Movement so that the first cam surface and the second cam surface are being engaged and moved between being disengaged from, so as to realize the folder of base plate 300
Tight and release；When in the form of folding rod, after folding rod is opened, the arm of force is longer, uses for the operating portion 411 of operating parts 410
Person can more labour-saving mobile folding rod between the first position and the second position so that the first cam surface and the second cam
Face is being engaged and is being moved between being disengaged from, so as to realize clamping and releasing for base plate 60.
Well known to those skilled in the art, the first cam surface 471 here can be arranged directly on the connection of operating parts 410
In portion 412, it is also possible to by the form of other middlewares so that the motion of operating parts 410 can drive the first cam surface 471 to transport
It is dynamic.As long as the first cam surface 471 and the second cam surface 472 here has relative motion between the two, then can realize two it is convex
Engagement between wheel face is disengaged from.Certainly, cam surface here is engaged or is disengaged from, not necessarily two cams
Direct engagement between face is directly disengaged from, it is also possible to be provided with middleware between two cam surfaces so that two convex
Realize indirectly engaging or being indirectly disengaged between wheel face.
Well known to those skilled in the art, " the first inclined-plane " and " the second inclined-plane " can also be arranged to other forms, so-called
The purposes on " the first inclined-plane " and " the second inclined-plane " be that can realize axial movement of certain component relative to another component
So as to cause component gap relative to another component in the vertical to produce change, therefore " the first inclined-plane " and " the second inclined-plane "
Can also set curved surface, projection or other it is any can realize certain component relative to another component axial movement so as to
Component gap relative to another component in the vertical is caused to produce the structure type of change.
Well known to those skilled in the art, fine setting operating parts 473 can also be arranged to other forms, such as button, folding rod
Deng, the operating portion 411 of operating parts 410 when in the form of button, button movement between the two positions so that the second inclined-plane
472 move toward and away from the first inclined-plane 471, so as to realize the regulation in the gap between housing 200 and base plate 300；Operation
Part 473 when in the form of folding rod, folding rod open after, the arm of force is longer, user can more labour-saving two positions
Move on the second inclined-plane of driving 472 between putting so that the second inclined-plane 472 is moved toward and away from the first inclined-plane 471, so that real
The regulation in existing gap between housing 200 and base plate 300.Certainly the motion of fine setting operating parts 473 so that the first inclined-plane and second
As long as producing axially opposite movement between inclined-plane 472, the first inclined-plane and the second inclined-plane are possible in certain embodiments together
Driven, or only drive axially opposite movement is still produced between the first inclined-plane, but the first inclined-plane and the second inclined-plane.And
The clamped of base plate individually cannot be realized using micro-adjusting mechanism and be released, it is served only for the micro- of the gap between housing and base plate
Minor adjustment.
The process that the base plate 300 in second embodiment is released and is clamped will be described in detail by Figure 11-14 below.
First, using micro-adjusting mechanism 470 by the gap adjustment between base plate 300 and housing 200 to suitable scope, so
Afterwards, as shown in figure 8, base plate 300 is located at clamped position, now operating parts 410 is located at the first position for clamping, base plate 300 it is flat
Face 310 is contacted with the surface of workpiece to be processed to provide the constant cutting angle on the surface relative to workpiece to be processed, works as needs
When carrying out base plate angular adjustment, when the angle of base plate such as being replaced with into the dotted line position in Figure 14, by operating parts 410 from such as Fig. 8
Shown first position moves to the second place as shown in Figure 9, and now, base plate 300 is located at off-position, and it is relative to housing
Angle then can be adjusted to dotted line position in Figure 14, when operating parts 410 moves to the second place from first position, operating parts
410 the first cam surfaces 430 of drive rotate so that the first cam surface 430 is disengaged from the second cam surface 440 so that base plate 300
Enough gaps are produced and housing 200 between with movable base plate 300.In first position, be fixed on for base plate 300 by fastener 420
On housing 200, by engaging so that for the first cam surface 430 and the second cam surface 440 between base plate 60 and housing 20 substantially
It is very close to each other, that is to say, that base plate 300 is clamped when the first cam surface 430 and the second cam surface 440 are intermeshed, and such as schemes
Shown in 12 and Figure 13, the side in the arcuation portion 320 of base plate 300 is provided with clamping plate 450, the opposite side in arcuation portion 320 sets
Operating parts 410 is equipped with, base plate 300 and housing 200 are clamped between operating parts 410 and clamping plate 450.
Disclosed hand held power machine and the base plate for hand held power machine are not limited to the above to be implemented
The structure representated by content and accompanying drawing described in mode.That the technical program is made on the basis of of the invention is apparent
Change, substitute or change, all within the scope of protection of present invention.
Claims (6)
1. a kind of hand held power machine, including housing, motor being contained in the housing, one in work to be processed
The executive item of operation, the power by motor output pass to the transmission mechanism of the executive item, an installation on part
Base plate and a governor motion for being used to adjust angle of the base plate relative to the housing on the housing, its feature
It is：The governor motion is used for including an operating parts for moving between the first position and the second position, one will be described
Base plate fixes non-threaded fastener on the housing, the first cam surface for being driven by the operating parts and installed in the shell
The second cam surface on body, in first position, first cam surface and second cam surface are intermeshed, the base plate quilt
Clamp on the housing, in the second place, first cam surface and second cam surface are disengaged from, the base plate phase
Angle for the housing can be conditioned, and second cam surface is located between first cam surface and the base plate；
The governor motion also includes the micro-adjusting mechanism for adjusting the gap between the housing and the base plate；The micro-adjusting mechanism
The second inclined-plane moved between the 3rd position and the 4th position including the first inclined-plane and relative to the first inclined-plane, at the 3rd
Put, the gap between first cam surface and the second cam surface diminishes, in the 4th position, first cam surface and second convex
Gap between wheel face becomes big；The micro-adjusting mechanism is also including driven in first inclined-plane or the second inclined-plane
The fine setting operating parts moved between the 3rd position and the 4th position.
2. hand held power machine according to claim 1, it is characterised in that：Fine setting operating parts and first inclined-plane
Or second threaded connection in inclined-plane is driving the inclined-plane to be moved between the 3rd position and the 4th position.
3. hand held power machine according to claim 1, it is characterised in that：The non-threaded fastener includes a clamping
Axle and a fixture, the clamp shaft pass completely through the base plate and partially pass through the housing and solid with described at one end
Determine part fastening to be connected.
4. hand held power machine according to claim 1, it is characterised in that：The governor motion also includes a clamping
Plate, the base plate has an arcuation portion, and the clamping plate and the operating parts are respectively positioned at the both sides in the arcuation portion.
5. hand held power machine according to claim 1, it is characterised in that：The hand held power machine is reciprocating saw, institute
It is the reciprocating saw blade on workpiece to be processed to state executive item, and be converted into for the rotary motion of the motor by the transmission mechanism
The reciprocating motion of the saw blade.
6. a kind of bottom plate adjusting mechanism, is adjusted, the hand held power machine for the base plate angle to hand held power machine
Including a housing, motor being contained in the housing, the executive item of operation on workpiece to be processed, one will
The power of the output of the motor passes to the transmission mechanism of the executive item and one to be used to adjust the base plate relative to institute
The governor motion of the angle of housing is stated, the base plate is installed on the housing, it is characterised in that：The governor motion includes one
The individual operating parts for moving between the first position and the second position, one be used to for the base plate to fix on the housing non-
Threaded fastener, the first cam surface driven by the operating parts and installation the second cam surface on the housing, first
Position, first cam surface and second cam surface are intermeshed, and the base plate is clamped on the housing, second
Position, first cam surface and second cam surface are disengaged from, and the base plate can relative to the angle of the housing
It is conditioned, second cam surface is located between first cam surface and the base plate；The governor motion also includes being used for
Adjust the micro-adjusting mechanism in the gap between the housing and the base plate；The micro-adjusting mechanism includes the first inclined-plane and relative to the
The second inclined-plane that one inclined-plane is moved between the 3rd position and the 4th position, in the 3rd position, first cam surface and second
Gap between cam surface diminishes, and the gap between the 4th position, first cam surface and the second cam surface becomes big；It is described
Micro-adjusting mechanism also include driven in first inclined-plane or the second inclined-plane the 3rd position and the 4th position it
Between the fine setting operating parts that moves.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422578.1A CN104440798B (en) | 2013-09-16 | 2013-09-16 | Handheld machine tool and bottom plate adjusting mechanism applied to same |
| DE202014104382.9U DE202014104382U1 (en) | 2013-09-16 | 2014-09-16 | Hand-held machine tool |
| FR1458699A FR3010649B3 (en) | 2013-09-16 | 2014-09-16 | HAND TOOL MACHINE, IN PARTICULAR A JIGSAW |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422578.1A CN104440798B (en) | 2013-09-16 | 2013-09-16 | Handheld machine tool and bottom plate adjusting mechanism applied to same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104440798A CN104440798A (en) | 2015-03-25 |
| CN104440798B true CN104440798B (en) | 2017-05-17 |
Family
ID=52887950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310422578.1A Expired - Fee Related CN104440798B (en) | 2013-09-16 | 2013-09-16 | Handheld machine tool and bottom plate adjusting mechanism applied to same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104440798B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221051A (en) * | 1979-05-30 | 1980-09-09 | The Singer Company | Circular saw with improved base plate adjustment |
| JP3362264B2 (en) * | 1993-08-24 | 2003-01-07 | 株式会社マキタ | Mounting structure of base for cutting tool |
| DE29513616U1 (en) * | 1995-08-24 | 1996-12-19 | Scintilla Ag, Solothurn | Jigsaw |
| US6357124B1 (en) * | 1998-07-10 | 2002-03-19 | Porter-Cable Corporation | Clamp system for a jigsaw tilt base |
| US7296356B2 (en) * | 2004-04-14 | 2007-11-20 | Eastway Fair Company Limited | Toolless adjustable base for a portable saw |
| CN2907992Y (en) * | 2006-12-09 | 2007-06-06 | 邬幼波 | Fast bottom plate changing device for sweep-saw |
| DE102008055065B4 (en) * | 2008-12-22 | 2021-11-04 | Robert Bosch Gmbh | Hand machine tool device with air guide element |
| CN102000879B (en) * | 2009-08-31 | 2012-10-03 | 苏州宝时得电动工具有限公司 | Reciprocating saw |
| CN203485149U (en) * | 2013-09-16 | 2014-03-19 | 南京德朔实业有限公司 | Handheld machine tool and base plate adjusting mechanism for same |
-
2013
- 2013-09-16 CN CN201310422578.1A patent/CN104440798B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104440798A (en) | 2015-03-25 |
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