CN100509303C - Handle - Google Patents
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- CN100509303C CN100509303C CNB2006100710839A CN200610071083A CN100509303C CN 100509303 C CN100509303 C CN 100509303C CN B2006100710839 A CNB2006100710839 A CN B2006100710839A CN 200610071083 A CN200610071083 A CN 200610071083A CN 100509303 C CN100509303 C CN 100509303C
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- handle portion
- main part
- lever
- lever main
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- 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
- B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
- B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
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- 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
- B25F5/006—Vibration damping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The present invention provides a kind of be mounted on power tool and the lever that uses, facilitates the reduction of production cost. Lever (121) of the invention includes the mountable mounting portion (123) on power tool (101); While inserting mounting portion (123),With the handle portion (125) for the tubular that the mounting portion (123) of the insertion is connected in a manner of it can at least relatively move towards direction identical with the direction of vibration of power tool (101); It configures between the cylinder inner peripheral surface of the handle portion (125) and the outer peripheral surface of mounting portion (123),Elastomer (131) to handle portion (125) relative to the relative movement movement effect bounce of mounting portion (123),Handle portion (125) has the elastic component (133) for the outer surface for covering the handle portion (125),The elastic component (133) and elastomer (131) are integrally formed.
Description
Technical field
The present invention relates to a kind ofly be installed in the detachable lever that uses on this power tool for the operation task instrument.
Background technology
Disclose the structure of auxiliary lever in TOHKEMY 2004-249430 communique, this auxiliary lever is the electric disc grinder that uses in the grinding operation of operating machined material, is installed on the main part of this electric disc grinder and uses.Patent documentation 1 disclosed auxiliary lever has the handle portion that is the lever main part on the main body that fixing shape is installed in the electric disc grinder and is connected in this lever main part.The outer surface of handle portion is covered by the rubber cover of anti-skidding usefulness.Between lever main part and handle portion, be provided with as the elastomeric vibration-proof rubber of vibrationproof that relatively rotates the effect bounce to this handle portion.For such lever, it is very high to relate to rational designing requirement.
Summary of the invention
The object of the present invention is to provide a kind of on being installed in power tool and in the lever that uses, help the technology of the attenuating of production cost.
According to the present invention, constitute a kind of lever, have: the lever main part, it can be installed on the power tool; The handle portion of hollow form has wherein inserted the lever main part, simultaneously, is connected in the mode that can relatively move with the lever main part of this insertion; Elastomer, it is configured between the outer surface of the inner surface of this handle portion and lever main part, is delivered to by the lever main part under the situation of handle portion in the vibration of power tool, to the relatively move action effect bounce of handle portion with respect to the lever main part; Elastic component, it covers the outer surface of above-mentioned handle portion." lever " among the present invention, as the vibrationproof lever, be applicable to outside the rotary power tool of the grinder of the grinding operation that makes disk rotation and carry out machined material or grinding operation or polishing machine etc., also go for as follows be accompanied by the roughly such power tool of vibration of linearity based on the driving of front end tool: tool bit is carried out the percussion action of long axis direction or carries out percussion action and spinning movement and finish the impact power tool of the electrically operated hammer of crushing operation or perforate operation etc. or hammer drill etc. on machined material; On blade, come and go the cut-out power tool that rectilinear motion carries out the reciprocating saw of cut-out operation of machined material or scroll saw etc.
With between lever main part and the handle portion as " being connected " form in the mode that can relatively move be suitable for comprising with handle portion can be parallel with respect to the lever main part and the form that moves of linearity, can be around the form of a rotation rotation, around the form of cross one another a plurality of rotations rotations or around any form of the form of sphere rotation.So-called " elastomer " is typically by rubber or resilient resin and defines.Also have, the elastomeric material on the handle portion is to be suitable for any form of comprising the form of a part that covers outer surface and covering all forms as the form of " covering outer surface ".
In the present invention, cover this surperficial elastic component of handle, and the elastomer that is configured between the outer surface of the inner surface of handle portion and lever main part is integrally formed.As the form of " integrally formed ", be typically and use shaping dies elastic component and the integrally formed form of elastomer.At this moment, after the cylindrical member that will become the main body of handle portion is placed in the shaping dies in advance, solidify aqueous elastomeric material and elastic component and elastomer is integrally formed by filling in this shaping dies, the so-called form that is shaped that embeds be the best.Perhaps also can be to use after integrally formed elastic component of shaping dies and the elastomer, be installed on the cylindrical member of the main body that becomes handle portion.
According to the present invention, be formed as one the elastic component in the outside that is configured in handle portion and be configured in the elastomeric structure of the inboard of handle portion, thus with elastic component and elastomer as parts.Its result compares with the structure that elastic component and elastomer form respectively, can reduce production costs.
And then at the structure of lever, with when different power tools is optionally installed, can constitute along the mode that long axis direction changes the intrinsic vibration number of times of this handle portion by the position of centre of gravity that makes handle portion corresponding to the form of this power tool of being installed." form of power tool " is meant the different situation of machine that comprises power tool, any situation of the situation that perhaps identical machine and model are different.The situation of change intrinsic vibration number of times is typically and sets the hammer installation portion that is used for installing hammer on handle portion, at the different hammer of this hammer installation portion selectivity erection weight.
For example, a plurality of hammers that preparation varies in weight, in the time of on the impact power tool that lever is installed in electrically operated hammer or hammer drill etc., under the situation of the cut-out power tool of reciprocating saw that is installed on the cut-out operation of carrying out machined material carrying out linear reciprocating motion on the blade or scroll saw etc., the selectivity change is installed in the hammer on the handle portion.At this moment be installed in hammer on the handle portion, also can select any of producer aspect, user's direction.
Description of drawings
Fig. 1 be the auxiliary lever of expression with embodiments of the present invention the electric disc grinder all structures partly cut open vertical view.
Fig. 2 is the cutaway view of the auxiliary lever of expression.
Fig. 3 is the cutaway view of III-III line of Fig. 2.
Fig. 4 is the cutaway view of IV-IV line of Fig. 2.
Fig. 5 is the longitudinal sectional view of the lever of expression second embodiment of the present invention.
Fig. 6 is the longitudinal sectional drawing of the lever of expression second embodiment of the present invention, the change state of the installation site of expression hammer.
The specific embodiment
(first embodiment)
Below, at first embodiment of the present invention, be elaborated with reference to Fig. 1～Fig. 4.Embodiments of the present invention are that lever of the present invention is being described under the suitable situation as the auxiliary lever of this electric disc grinder of operation in as the electric disc grinder of an example of rotary power tool.Fig. 1 represents to be installed in the integral body of the auxiliary lever on the electric disc grinder as cutaway view, and Fig. 2 only represents auxiliary lever with cutaway view, and Fig. 3 and Fig. 4 represent a part based on the auxiliary lever of analysing and observe index line of Fig. 2 with transverse sectional view.
At first, with reference to the summary of Fig. 1 simple explanation electric disc grinder 101.Electric disc grinder 101 is that long axis direction is made as fore-and-aft direction (diagram left and right directions), constitutes exterior contour by the main part 103 that is made of motor casing 105 and gear hub 107.Main part 103 is corresponding with " power tool main body " of the present invention.Motor casing 105 roughly forms drum, accommodates drive motors 111 in this motor casing 105.Drive motors 111 is configured in the mode that its rotation direction becomes the long axis direction of electric disc grinder 101.
In the gear hub 107 that the leading section with motor casing 105 is connected, accommodate Poewr transmission mechanism 113, this Poewr transmission mechanism 113 is exported the rotation of drive motors 111 on the emery wheel 115 that is delivered to as front end tool.The rotation of drive motors 111 output is delivered to emery wheel 115 as rotatablely moving of circumferencial direction via Poewr transmission mechanism 113.Emery wheel 115 disposes in long axis direction (rotation of drive motors 111) the vertical mode of its rotation with respect to electric disc grinder 101 in the front side (diagram left side) of the long axis direction of electric disc grinder 101.In addition, connecting king lever 109 in the rearward end (diagram right side) of motor casing 105, the side surface part of gear hub 107 becomes the structure that auxiliary lever 121 can freely be installed with loading and unloading.King lever 109 is provided with in the mode that its long axis direction becomes the long axis direction of electric disc grinder 101, and with respect to this, auxiliary lever 121 is set with its long axis direction direction vertical with the long axis direction of king lever 109.Operating personnel grasp this two levers 109,121, carry out the grinding operation of machined material by electric disc grinder 101.
Below, based on Fig. 2～Fig. 4 auxiliary lever 121 is described.Auxiliary lever 121 is that the handle portion cylindraceous 125 that roughly columned lever main part 123 and operating personnel hold is constituted main body, and this lever main part 123 is removable at the lever installation portion 107a on the side that is formed on gear hub 107.Lever main part 123 is corresponding with " lever main part " of the present invention, and handle portion 125 is corresponding with " hand grip portion " of the present invention.In addition, lever installation portion 107a is by being that axial installation screwed hole forms with the direction vertical with the long axis direction of main part 103.
Lever main part 123 installs threaded portion 123a for one distolateral (upside of Fig. 2) at its long axis direction has, has the 123b of sphere portion in the centre, at another distolateral roughly columned member with engaging axial region 123c, these install threaded portion 123a, the 123b of sphere portion, engaging axial region 123c forms as one vertically continuously and mutually.Lever main part 123 is inserted into when forming in the handle portion cylindraceous 125, the concave surface 125a of the 123b of sphere portion and the dome shape of distolateral (upside of Fig. 2) of the long axis direction that is formed on handle portion 125 and to be formed on the concave surface 127a of the dome shape on the end cap 127 chimeric.
Thus, handle portion 125 is one distolateral its long axis direction, can be with respect to lever main part 123 and be that center of rotation relatively rotates in all directions with the center of the 123b of sphere portion.In addition, end cap 127 has screw thread at the outer peripheral face of the 127b of tube portion that has formed concave surface 127a, is secured in the screwed hole that is formed on the handle portion 125 on this handle portion 125 by the 127b of this is screwed into.
Also have, shown in the cutaway view of Fig. 3, at the 123b of sphere portion of lever main part 123, be formed with two planar portions 123d abreast across the long axis of this lever main part 123, on the concave surface 125a of handle portion 125, be formed with planar portions 125b corresponding to this respectively.And, the laminal elastic plate 129 of rubber system is joined between two planar portions 123d, the 125b, absorb by this elastic plate 129 and be accompanied by the vibration that the error in the manufacturing that lever main part 123 and handle 125 produce each other causes.
Lever main part 123 is arranged on another distolateral engaging axial region 123c, as Fig. 2 and shown in Figure 4, forms the rounded shape of section, simultaneously, connect handle portion 125 concave surface 125a central part and in the tube hole 125c of this handle portion 125, extend.And in the tube hole 125c of handle portion 125, between the outer peripheral face of the inner peripheral surface of this hole 125c and engaging axial region 123c, be provided with the roughly vibration-proof rubber 131 of ring-type.Vibration-proof rubber 131 is corresponding with " elastomer " among the present invention.Vibration-proof rubber 131 has at central portion to axially extended connecting hole 131a, will engage axial region 123c and be and be close to shape and insert in its connecting hole 131a.Vibration-proof rubber 131 is provided with in order to absorb the vibration that is transmitted to handle portion 125 from lever main part 123.That is, vibration-proof rubber 131 is pivot point when rotating with respect to lever main part 123 with the 123b of sphere portion at handle portion 125, and lever main part 123 between this handle portion 125 is mainly applied radially bounce.
In addition, elastic covering 133 and vibration-proof rubber 131 for convenient diagram does not illustrate, but use shaping dies, form by embedding modes such as shaping.Promptly, after being installed in cylindrical shell 126 in the shaping dies that forms the regulation shape, in this shaping dies, fill aqueous rubber, form by curing, but when being shaped, connect elastic covering 133 and vibration-proof rubber 131 by the connecting portion 135 in the through hole 137 that forms in tubular 126.So, handle portion 125 becomes parts fixing (joint) flexible cover 133 and vibration-proof rubber 131 in cylindrical shell 126.In addition, elastic covering 133 is set in the mode of the flange part 126a of the outside standing shape that wraps into axial another distolateral (downside of Fig. 2) that be formed on cylindrical shell 126.Thus, prevent peeling off with respect to cylindrical shell 126.Also have the tube hole 125c of cylindrical shell 126 to block by covering 139.
The auxiliary lever 121 of present embodiment constitutes as described above, as shown in Figure 1, is installed on the electric disc grinder 101 and uses.Auxiliary lever 121 is screwed among lever installation portion (installation screwed hole) 107a on the main part 103 that is arranged on electric disc grinder 101 by the installation threaded portion 123a screw thread with lever main part 123 and installs.Auxiliary lever 121 according to present embodiment, when the grinding operation of being undertaken by electric disc grinder 101 under the vibrative situation, the lever of assisting lever 121 in this vibration from main part side warp is when 125 inputs of main part 123 handle portions, absorption of vibrations effect by vibration-proof rubber 131 is absorbed, and can reduce the vibration of handle portion 125 thus.In the present embodiment, since be handle portion 125 with respect to lever main part 123 by sphere can comprehensive rotational action structure, so can play certain absorption of vibrations effect to the dissimilar vibration of input direction, can provide operating position good auxiliary lever 121.Also have, according to present embodiment, owing to be that handle portion 125 passes through the sphere structure of rotational action in all directions, so the installation direction when being installed in main part 103 is not restricted, thus, can adopt the simple and low-cost configuration that threaded portion 123a screw thread is screwed into the mode of lever installation portion 107a will be installed.
And the assembling operation of the auxiliary lever 121 of present embodiment is by in sequence following: with lever main part 123, with its engaging axial region 123c side is front end, after being inserted in this handle portion 125 from an end of handle portion 125, make end cap 127 cover the end of handle portion 125, the 127b of the tube portion screw thread of this end cap 127 is screwed in the screwed hole of handle portion 125.At this moment, the engaging axial region 123c of lever main part 123 is with in the connecting hole 131a that is close to shape and is inserted into vibration-proof rubber 131, and vibration-proof rubber 131 becomes the state between the tube hole inner peripheral surface of the outer peripheral face of engaging axial region 123c and handle portion 125 thus.
At this moment, according to present embodiment, in making the process of handle portion 125, vibration-proof rubber 131 and the elastic covering 133 that is provided with for the outer surface that covers this handle portion 125 are formed as one.That is, handle portion 125 is parts having fixed elastic covering 133 and vibration-proof rubber 131 in cylindrical shell 126, so do not need to be used for vibration-proof rubber 131 is assembled into the operation of handle portion 125.Its result, and as a ring of the installation exercise of auxiliary lever and need the structure of the assembling of vibration-proof rubber to compare, the operation quantity of the installation exercise of auxiliary lever 121 reduces, assembleability improves.
Also have, when using shaping dies that handle portion 125 is formed, in the present embodiment, since elastic covering 133 and vibration-proof rubber 131 is integrally formed, so use a mould just passable.Thus, compare with the structure of handle portion, assembling then with for example being formed separately vibration-proof rubber, the number of molds of shaping dies tails off, and manufacturing process's quantity also reduces, and is consequently effective to the attenuating of production cost.
Also have, present embodiment is to connect as the elastic covering 133 of the outer member of handle portion 125 with as the structure of the vibration-proof rubber 131 of inner member by the connecting portion 135 that connects cylindrical shell 126, so by changing the desired location of connecting portion 135, can be with position axially the changing arbitrarily of vibration-proof rubber 131 along handle portion 125.In the illustrated embodiment, vibration-proof rubber 131 is arranged near the position of the center of rotation of handle portion 125.In this mode,, the shaft length of the engaging axial region 123c of lever main part 123 is shortened just the lightweight that becomes of this lever main part 123 by vibration-proof rubber 131 center of rotation near handle portions 125.Also have, follow this and about cylindrical shell 126, the axial length in the zone that is formed by thin-walled is also elongated, this also lightweight of cylindrical shell 126.On the other hand, can make vibration-proof rubber 131 to the position of leaving from the center of rotation of handle portion 125, promptly near position (lower side of Fig. 2) change of covering 139.Because being the amplitude that produces by vibration, this position is maximum position, so when disposing like this, can effectively absorb vibration.
In addition, according to present embodiment, when being inserted in this handle portion 125 for lever main part 123 being assembled on the handle portion 125, utilizing its insert action and will engage axial region 123c and be inserted in the connecting hole 131a of vibration-proof rubber 131, and can reasonably install.
In addition, when engaging axial region 123c was inserted into the connecting hole 131a of vibration-proof rubber 131, promptly, engaging axial region 123c and vibration-proof rubber 131 be mutually and be close to shape when chimeric, 131 effects will be pushed mobile power along long axis direction with this vibration-proof rubber 131 to vibration-proof rubber.In the present embodiment, because vibration-proof rubber 131 is connected with elastic covering 133 by connecting portion 135, this connecting portion 135 is radially extending cylindrical shell 126 under the state of crosscut, so this connecting portion 135 acts on for axial the moving of limiting vibration-proof rubber 131.Thus vibration-proof rubber 131 is remained on desired location, can not hinder this vibration-proof rubber 131 to finish with the chimeric of engaging axial region 123c.In addition, connecting portion 135 when cylindrical shell 126 is peeled off, plays this effect of peeling off of inhibition at the elastic covering 133 that will make handle portion 125.That is, prevent that elastic covering 133 breaks away from from cylindrical shell 126 outer surfaces, can keep the quality of handle portion 125.
In addition, in the present embodiment, the structure that to be handle portion 125 that operating personnel are held be connected in comprehensive mode of freely rotating by the 123b of sphere portion with lever main part 123, but also can be to change this structure, and change to the state that handle portion 125 is rotated around cross one another a plurality of pivot centers with respect to lever main part 123, the perhaps state that rotates along a turning cylinder.
Also have, in the present embodiment,, be illustrated with the situation of electric disc grinder 101, but be not limited to electric disc grinder 101 as the suitable example of auxiliary lever 121.That is, go for as follows based on the driving of front end tool and be accompanied by the roughly such power tool of vibration of linearity: be rotated with front end tool and finish the processing operation of machined material under the situation of motion, for example cut open the rotary power tool of ray machine, circular saw, sonic drill etc.; Perhaps the drill bit as front end tool is carried out the percussion action of long axis direction or carry out percussion action and spinning movement and on machined material, finish the electrically operated hammer of crushing operation or perforate operation etc. or the impact power tool of hammer drill etc.; On blade, come and go the cut-out power tool that rectilinear motion carries out the reciprocating saw of cut-out operation of machined material or scroll saw etc. in addition.
Also having, also can be that leading section (free end side) at handle portion 125 is provided with vibration-proof rubber 131 and is also used as the structure of the lid 139 of the tube hole 125c that blocks handle portion 125.At this moment, also can be beyond the connecting portion 135 that will connect vibration-proof rubber 131 and elastic covering 133 be provided with in the mode that connects cylindrical shell 126, its extension (covering) is disposed to the mode of the axial end of cylindrical shell 126.
Also having, also can be after the elastic covering 133 and vibration-proof rubber 131 integrated formation that will cover, and makes it cover the structure of cylindrical shell 126.
Also have in the present embodiment, be arranged on through hole 137 on the cylindrical shell 126 of handle portion 125 be made as a plurality of, even but no one influence.
(second embodiment)
Below, for the lever of second embodiment of the present invention, describe with reference to Fig. 5 and Fig. 6.Handle portion that the lever of second embodiment is held with columned mounting rod 183 and operating personnel as the lever main part 185 constitutes as main body, and this mounting rod 183 can be installed in the main part (omitting diagram) of the power tool of motor-driven mill etc.Mounting rod 183 long axis direction one distolateral have threaded portion 183a and the 183b of sphere portion are installed.Mounting rod 183 is inserted into and forms in the handle portion 185 cylindraceous, simultaneously, the concave surface 185a of the 183b of sphere portion and the dome shape of distolateral (upper end side of Fig. 5) of the long axis direction that is formed on handle portion 185 and to be formed on the end cap 19 the concave surface 191a of 1 dome shape chimeric.Thus, handle portion 185 is one distolateral its long axis direction, and can be that center of rotation is omnibearing with the center of the 183b of sphere portion with respect to mounting rod 183 relatively rotates.In addition, end cap 191 has screw thread on the outer peripheral face of the 191b of tube portion that is formed with concave surface 191a, fixes this handle portion 185 in the screwed hole that is formed on the handle portion 185 by the 191b of this screw thread is screwed into.
The other end side of the long axis direction of mounting rod 183 is provided with yielding rubber 193 between handle portion 185 and mounting rod 183.Yielding rubber 193 is corresponding with " elastomer " of the present invention, for absorption is provided with from the vibration that mounting rod 183 is input to handle portion 185.That is, yielding rubber 193 is with respect to mounting rod 183 and handle portion 185 is a rotating fulcrum when rotating with the 183b of sphere portion, and mounting rod 183 between to these handle portion 185 additional bounces radially.In addition, handle portion 185 is by constituting as the cylindrical shell cylindraceous 187 of handle portion main body and the cover 189 of rubber system that surrounds the outer peripheral face of this cylindrical shell 187.It is integrally formed to cover 189 yielding rubbers of using with absorption of vibrations 193 in addition.
The other end (lower end side of Fig. 5) at the long axis direction of handle portion 185 is formed with the hammer installation portion 185b that is used to install hammer 195.Constitute hammer installation portion 185b by the screwed hole of the tube hole inner peripheral surface that is formed on cylindrical shell 187.Hammer 195 constitutes by form externally threaded cylinder at outer peripheral face, is screwed in the screwed hole of hole inner peripheral surface and detachable being installed on the handle portion 185 by screw thread.Hammer 195 is provided with for the position of centre of gravity with handle portion 185 changes on long axis direction, mode as the change position of centre of gravity, adopt following selection mode as first mode: prepare the predefined a plurality of hammers 195 that vary in weight, the hammer 195 of the weight that will select from these a plurality of hammers is installed in hammer installation portion 185a.In addition, for the setting of hammer 195 weight,, perhaps be formed on the axial degree of depth of hammering the recess 195a on 195 into shape and tackle by change by for example changing the material (for example be resinous hammer and metal hammer) of hammer 195.In addition, adopt following position to adjust mode as second mode: can adjust the installation site that is installed in the hammer 195 on the hammer installation portion 185a.That is, as the screwed hole of the hammer installation portion 185b of the tube hole inner peripheral surface that is formed on cylindrical shell 187, from the other end of this cylindrical shell 187 to the roughly pars intermedia of long axis direction axially, in very long scope, form.And, be screwed into the degree of depth by changing hammer 195 with respect to the screw thread of hammering installation portion 185b into shape, and can adjust hammer 195 installation sites with respect to handle portion 185, for example can adjust from position shown in Figure 5 to position shown in Figure 6.In addition, hammer 195 is also used as the lid in the tube hole of blocking handle portion 185.
The intrinsic vibration number of times of handle portion 185 for example the rigidity by changing this handle portion 185, quality size and can change.In the present embodiment,, can change the weight of the hammer 195 on the hammer installation portion 185a that is installed in handle portion 185 and set up, perhaps can adjust the installation site that is installed in the hammer 195 on the hammer installation portion 185a at auxiliary lever 181.By hammering the change of 195 weight into shape, perhaps, the position of centre of gravity of handle portion 185 is changed along long axis direction by adjusting the installation site of hammer 195.That is, can change from center with the 183b of sphere portion of mounting rod 183 be center of rotation rotate (vibration) this center of rotation of handle portion 185 to the distance of position of centre of gravity.Like this, be accompanied by that position of centre of gravity changes and the turning moment that acts on around the center of rotation of position of centre of gravity of handle portion 185 changes, can change center with the 183b of sphere portion thus and be the intrinsic vibration number of times of the handle portion 185 that center of rotation rotates.
That is, in the present embodiment,, perhaps hammer 195 installation site into shape by adjusting by the weight of change hammer 195, and the intrinsic vibration number of times of change handle portion 185.As the power tool of the mounting object of auxiliary lever 181, for example if motor-driven mill, the mode that the intrinsic vibration number of times of handle portion 185 departs from the direction of the vibration number of the vibration that produces when being lower than the driving of this motor-driven mill and being set.Thus when the driving of motor-driven mill, can suppress to be input to the vibration of handle portion 185 of the vibration of handle portion 185 based on main body side from this motor-driven mill.
Usually, power tool is owing to the vibration number of the vibration that does not produce on an equal basis of machine, model is also different, follows in this and also difference of the vibration number of vibration that should vibrationproof.The auxiliary lever 181 of present embodiment is corresponding to as the machine of the power tool of mounting object or model etc. and can simply change the intrinsic vibration number of times of handle portion 185.Thus can with have now such must just can correspondence with a kind of auxiliary lever 181 according to the form that each machine or each model of power tool are made special-purpose auxiliary lever.In addition, the change of the intrinsic vibration number of times of such handle portion 185 is basically in order to constitute implementing aspect the producer, but also can be the structure of change aspect the user, and at this moment an auxiliary lever can be suitable to a plurality of power tools.
Hammer 195 erecting devices with respect to handle portion 185 are not limited to the mode that hammer 195 screw threads is screwed into the screwed hole 195 of the tube hole inner peripheral surface that is formed on handle portion 185, also can change to for example with the fixing structure of the screw thread that is provided with in addition, perhaps any one party of the periphery of week and hammer 195 is provided with the fastening pawl in the tube hole of handle portion 185, any the opposing party be provided with this fastening pawl can in conjunction with the fastening groove, under the state that the position correspondence of fastening pawl and fastening groove, will hammer into shape 195 be inserted in the hole after, to circumferential rotating operation and fixing structure etc.Also have, hammer 195 also can change to the form in the outside that is installed in handle portion 185.
Claims (15)
1, a kind of lever is characterized in that, has:
The lever main part, it can be installed on the power tool;
The handle portion of hollow form has wherein inserted above-mentioned lever main part, simultaneously, is connected in the mode that can relatively move with the lever main part of this insertion;
Elastomer, it is configured between the outer surface of the inner surface of this handle portion and above-mentioned lever main part, vibration at above-mentioned power tool is delivered under the situation of above-mentioned handle portion by above-mentioned lever main part, to the relatively move action effect bounce of above-mentioned handle portion with respect to above-mentioned lever main part;
Elastic component, it covers the outer surface of above-mentioned handle portion,
Above-mentioned elastic component and above-mentioned elastomer form as one.
2, the lever of putting down in writing as claim 1 is characterized in that, above-mentioned elastomer is configured in the outside of lever main part with respect to the installation position of above-mentioned power tool in above-mentioned handle portion.
3. as claim 1 or 2 levers of being put down in writing, it is characterized in that having the hinge portion that above-mentioned handle portion is connected in above-mentioned lever main part,
Above-mentioned hinge portion is delivered under the situation of above-mentioned handle portion by above-mentioned lever main part in the vibration of above-mentioned power tool, allows above-mentioned handle portion to relatively rotate with respect to above-mentioned lever main part,
Above-mentioned elastomer, be in the zone beyond the above-mentioned hinge portion, be set between above-mentioned lever main part and the above-mentioned handle portion, when the vibration of above-mentioned power tool is delivered to above-mentioned handle portion by above-mentioned lever main part, center under the situation of rotating above-mentioned hinge portion with respect to above-mentioned lever main part at above-mentioned handle portion, to handle portion effect bounce.
4, the lever of putting down in writing as claim 1 is characterized in that, above-mentioned elastomer is configured in the outside of above-mentioned hinge portion in above-mentioned handle portion.
5, the lever of putting down in writing as claim 1, it is characterized in that, above-mentioned handle portion be formed with the upwardly extending through hole in the axial side that intersects of this handle portion, above-mentioned elastomer and above-mentioned elastic component interconnect by the connecting portion that is arranged in above-mentioned through hole.
6, the lever of putting down in writing as claim 5, it is characterized in that, above-mentioned elastomer, when being inserted in this handle portion vertically for above-mentioned lever main part is installed on above-mentioned handle portion, chimeric by this insert action with the inserting side end outer surface of above-mentioned lever main part, simultaneously, when this is chimeric, limit above-mentioned axial moving by above-mentioned connecting portion.
7, the lever of putting down in writing as claim 1, it is characterized in that, above-mentioned handle portion and above-mentioned shank part are can comprehensive mode in relative rotation being connected, and simultaneously, above-mentioned elastomer is to omnibearing the relatively rotate action effect bounce of above-mentioned handle portion with respect to above-mentioned lever main part.
8. the lever of putting down in writing as claim 7, it is characterized in that, one side of above-mentioned handle portion and above-mentioned lever main part has sphere portion, the opposing party of this handle portion and above-mentioned lever main part has the corresponding concave part with above-mentioned sphere portion, above-mentioned handle portion by this sphere portion and recess and with above-mentioned lever main part can comprehensive mode in relative rotation being connected.
9. the lever of putting down in writing as claim 1 is characterized in that, above-mentioned lever main part is the structure on the power tool that can optionally be installed in different a plurality of kinds,
Above-mentioned handle portion is the structure that can change the intrinsic vibration number of times of this handle portion corresponding to the form of the above-mentioned power tool of being installed by the position of centre of gravity that makes this handle portion along long axis direction.
10, the lever of putting down in writing as claim 9 is characterized in that, have above-mentioned handle portion is connected hinge portion on the above-mentioned lever main part,
Above-mentioned hinge portion is delivered under the situation of above-mentioned handle portion by above-mentioned lever main part in the vibration of above-mentioned power tool, allows above-mentioned handle portion to rotate around this hinge portion with respect to above-mentioned lever main part,
Above-mentioned handle portion can change the distance of the center of gravity from above-mentioned hinge portion to this handle portion, by change above-mentioned distance under the state that above-mentioned lever main part is installed on the power tool, changes the intrinsic vibration number of times of above-mentioned handle portion thus.
11, the lever of putting down in writing as claim 9, it is characterized in that, the change of the intrinsic vibration number of times of above-mentioned handle portion, by at least one of the hammer of this handle portion a plurality of kinds that optionally erection weight is different, perhaps, adjust the installation site that is installed in the hammer on this handle portion and carry out by on the long axis direction of above-mentioned handle portion.
12, a kind of lever is characterized in that, has:
The lever main part, it can optionally be installed on the power tool of different a plurality of kinds;
Handle portion, it is connected in the mode that can relatively move with this lever main part;
Elastomer, it is arranged between above-mentioned lever main part and the above-mentioned handle portion, to the relatively move effect bounce of above-mentioned handle portion with respect to above-mentioned lever main part,
Thereby become the formation that can change the intrinsic vibration number of times of this handle portion corresponding to the form of the above-mentioned power tool of being installed along long axis direction by the position of centre of gravity that makes above-mentioned handle portion.
13, the lever of putting down in writing as claim 12 is characterized in that, have above-mentioned handle portion is connected hinge portion on the above-mentioned lever main part,
Above-mentioned hinge portion is delivered under the situation of above-mentioned handle portion by above-mentioned lever main part in the vibration of above-mentioned power tool, allows above-mentioned handle portion to rotate around this hinge portion with respect to above-mentioned lever main part,
Above-mentioned handle portion can change the distance of the center of gravity from above-mentioned hinge portion to this handle portion, by change above-mentioned distance under the state that above-mentioned lever main part is installed on the power tool, changes the intrinsic vibration number of times of above-mentioned handle portion thus.
14, the lever of putting down in writing as claim 12, it is characterized in that, the change of the intrinsic vibration number of times of above-mentioned handle portion, by at least one of the hammer of this handle portion a plurality of kinds that optionally erection weight is different, perhaps, adjust the installation site that is installed in the hammer on this handle portion and carry out by on the long axis direction of above-mentioned handle portion.
15, a kind of power tool, the king lever and the auxiliary lever that have this power tool main body of operation on the power tool main body is characterized in that,
Above-mentioned auxiliary lever has: can be installed in the lever main part on the above-mentioned power tool main body; The handle portion that is connected in the mode that can relatively move with this lever main part; Be arranged between above-mentioned lever main part and the above-mentioned handle portion, to the elastomer of this handle portion with respect to the effect bounce that relatively moves of above-mentioned lever main part, simultaneously,
Should assist lever constituting along the mode that long axis direction changes the intrinsic vibration number of times of this handle portion by the position of centre of gravity that makes above-mentioned handle portion, under the state that is installed on the above-mentioned power tool main body, the vibration number that the intrinsic vibration number of times of above-mentioned handle portion produces from power tool departs from and is set.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005103691A JP4920900B2 (en) | 2004-07-15 | 2005-03-31 | Anti-vibration handle |
| JP2005103691 | 2005-03-31 | ||
| JP2005114833 | 2005-04-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1840295A CN1840295A (en) | 2006-10-04 |
| CN100509303C true CN100509303C (en) | 2009-07-08 |
Family
ID=37029579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100710839A Active CN100509303C (en) | 2005-03-31 | 2006-03-31 | Handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100509303C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11084006B2 (en) | 2017-03-23 | 2021-08-10 | Milwaukee Electric Tool Corporation | Mud mixer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012098672A1 (en) * | 2011-01-21 | 2012-07-26 | 株式会社ユーエム工業 | Grip jacket and grip for cutting tool |
| JP5704955B2 (en) * | 2011-02-17 | 2015-04-22 | 株式会社マキタ | Anti-vibration handle |
| DE102011078376A1 (en) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Handle device, in particular for hand tools |
| US11229997B2 (en) * | 2015-06-30 | 2022-01-25 | Koki Holdings Co., Ltd. | Working machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0156387A2 (en) * | 1984-03-30 | 1985-10-02 | Makoto Minamidate | Vibration-proof grip device |
| DE9003365U1 (en) * | 1990-03-22 | 1991-07-18 | Ringfeder Gmbh, 4150 Krefeld | Dynamic vibration damper |
| US5157807A (en) * | 1990-04-06 | 1992-10-27 | Metabowerke Gmbh & Co. | Vibration-cushioned handle |
| DE10126491A1 (en) * | 2001-05-31 | 2002-12-05 | Wuerth Adolf Gmbh & Co Kg | Handle for a portable machine comprises a damping unit serving for dynamic decoupling of the handle outer shell from the machine |
| EP1462222A1 (en) * | 2003-03-28 | 2004-09-29 | Adolf Würth GmbH & Co. KG | Vibration-damped handle |
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2006
- 2006-03-31 CN CNB2006100710839A patent/CN100509303C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0156387A2 (en) * | 1984-03-30 | 1985-10-02 | Makoto Minamidate | Vibration-proof grip device |
| DE9003365U1 (en) * | 1990-03-22 | 1991-07-18 | Ringfeder Gmbh, 4150 Krefeld | Dynamic vibration damper |
| US5157807A (en) * | 1990-04-06 | 1992-10-27 | Metabowerke Gmbh & Co. | Vibration-cushioned handle |
| DE10126491A1 (en) * | 2001-05-31 | 2002-12-05 | Wuerth Adolf Gmbh & Co Kg | Handle for a portable machine comprises a damping unit serving for dynamic decoupling of the handle outer shell from the machine |
| EP1462222A1 (en) * | 2003-03-28 | 2004-09-29 | Adolf Würth GmbH & Co. KG | Vibration-damped handle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11084006B2 (en) | 2017-03-23 | 2021-08-10 | Milwaukee Electric Tool Corporation | Mud mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1840295A (en) | 2006-10-04 |
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