CN104227663A - Automatic mallet with damping device - Google Patents
Automatic mallet with damping device Download PDFInfo
- Publication number
- CN104227663A CN104227663A CN201310248264.4A CN201310248264A CN104227663A CN 104227663 A CN104227663 A CN 104227663A CN 201310248264 A CN201310248264 A CN 201310248264A CN 104227663 A CN104227663 A CN 104227663A
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- damping device
- electrically operated
- free end
- arc bar
- housing
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Abstract
Disclosed is an automatic mallet with a damping device. The automatic mallet comprises a shell unit, an automatic mallet unit and the damping device. The shell unit comprises a shell and a drive handle. The drive handle is provided with a pivot end, pivoted to the shell, and a free end. The free end can swing, with the pivot end used as the pivot. The automatic mallet unit comprises a mallet rod and a drive set. The mallet rod penetrates in the shell unit and is driven by the drive set to do reciprocating motion along the length thereof. The damping device comprises an orbit determined arc rod and an elastic member. The orbit determined arc rod is connected between the shell and the free end. The elastic member is abutted against between the orbit determined arc rod and the shell unit. The orbit determined arc rod extends along the swing path of the free end to movably penetrate the shell unit.
Description
Technical field
The present invention relates to a kind of electrically operated hammer, refer to a kind of electrically operated hammer with damping device especially.
Background technology
General electrically operated hammer, mostly has one and probably presents the body of L-type, the hammer stem being arranged at this body respectively and a driving group, and a handle being installed on this body rear.In use, corresponding reaction force can be produced because of this hammer stem reciprocating hammer thing to be knocked, operator is made to grip this handle when operating, often bear a large amount of vibrations, once operating time elongation, be easy to cause hand joint to injure, therefore, occur the handle cushion technique of many electrically operated hammers.
Such as, US6,148, electrically operated hammer damping device disclosed by No. 930 United States Patent (USP) cases, there is a L-type body, be arranged at a hammer stem of this body and driving group respectively, opening is towards the U-shaped handle of hollow of this body, pair of parallel interval is fixedly arranged on the vibration absorption unit between this body and this handle, each vibration absorption unit has one and connects straight-bar, and a butted Compress Spring between this connection straight-bar and this handle, utilize this can absorb to vibration absorption unit the vibrations that this handle produces in operation.But, in operation, this amount of force suffered by two groups of vibration absorption unit is unequal, be positioned at top and be close to the stressed larger of the vibration absorption unit of this hammer stem, be positioned at below and away from vibration absorption unit stressed less of this hammer stem, therefore, the vibration absorption unit of below easily produces eccentricities, thus the shortcoming such as reduces damping effect or cause that operation has some setbacks.
And US6,962, No. 211 electrically operated hammer damping devices disclosed by United States Patent (USP) case, be then devoted to improve beat and shake the handle unbalance stress problem caused, there is a housing, and be installed on a hammer stem group in this housing, a driving group and a damping device respectively.This damping device has one along the butted Compress Spring between this hammer stem group and this housing of this hammer stem group length direction, and two cantilever shell fragments being arranged at this hammer stem group and this driving group respectively, and described cantilever shell fragment is positioned at the two opposite sides of this hammer stem group.Although, utilize described cantilever shell fragment can beat vibrations in absorption operation process, but this kind of suspension type design not only increases the overall volume of this housing, also because this Compress Spring and described cantilever shell fragment operate power and reaction force by bearing completely, can overall construction intensity be reduced on the contrary, there is the shortcoming that durability is not good.
And the another kind of electrically operated hammer damping device improving handle unbalance stress, as US7, 523, disclosed by No. 791 United States Patent (USP) cases, then handle is hubbed at the body rear of installing for hammer stem and driving group, and utilize a damping spring be connected between handle and body to provide beat to cushion, but, this type of design in operation, handle can swing around pivoting point, therefore, to swing the angle of exerting pressure stressed by receiving the linearly stressed of hammer stem moving direction and handle simultaneously for damping spring, and easy torsional deformation, cause service life reduce or hammer stem hits the problems such as a misalignment.
US7, 886, No. 838 United States Patent (USP) cases are then intended to improve the problem that single damping spring bears different directions pressure and torsional deformation, be provided with two groups of damping spring groups, wherein one group of linear vibration be responsible for the action of buffering hammer stem and caused, another group is then responsible for buffering handle and is swung the beat vibrations caused, although, this design can reduce the torsional deformation problem of single damping spring design a little, but use many group dampings that overall construction design will be made to become complexity thus to raise the cost, moreover, increase hammer stem is also hit error range a little by the setting of many groups damping spring, still have and improve space.
Summary of the invention
The object of the present invention is to provide a kind of simplify structure and increase hit the electrically operated hammer with damping device of a degree of accuracy.
The present invention has the electrically operated hammer of damping device, comprises a housing unit, an electrically operated hammer unit and a damping device.This housing unit comprises a housing and one and drives handle, and this driving handle has the pivot joint end that is hubbed at this housing, and one in contrast to this pivot joint end and can with this pivot joint end for fulcrum and the free end that swings.This electrically operated hammer unit comprises one and stretches through and be installed on the hammer stem of this housing unit, and a driving group, and this hammer stem can be driven by this driving group and move back and forth along its length direction.This damping device comprises an orbit determination arc bar connected between this housing and this free end, and one is butted in the elastic component of this orbit determination arc bar with this housing unit, this orbit determination arc bar along this free end the extension of swing path and activity is extended through this housing unit.
The electrically operated hammer with damping device of the present invention, the housing of this housing unit has a contrary leading section and a rearward end, this driving handle is hubbed at this rearward end, this location arc bar is connected between this rearward end and this free end, the orbit determination arc bar of this damping device has the connecting end portion that is fixedly installed on this rearward end, and one is extended through the sprung end of the free end of this driving handle in contrast to this connecting end portion, this elastic component to be arranged in this driving handle and butted in this sprung end and this free end.
The electrically operated hammer with damping device of the present invention, the elastic component of this damping device is Compress Spring.
The electrically operated hammer with damping device of the present invention, this damping device also comprises a flexible dirt-proof boot be located between this orbit determination arc bar and this housing unit.
The electrically operated hammer with damping device of the present invention, the housing of this housing unit has a contrary leading section and a rearward end, this driving handle is hubbed at this rearward end, this location arc bar is connected between this rearward end and this free end, the orbit determination arc bar of this damping device has the connecting end portion that is fixedly installed on this rearward end, and one is extended through the sprung end of the free end of this driving handle in contrast to this connecting end portion, it is interior and butted in this sprung end and this free end that this elastic component is arranged at this driving handle, this dirt-proof boot is located between this sprung end and this free end.
The electrically operated hammer with damping device of the present invention, this damping device also comprises the flexible beam between a pivot joint end being located in this housing and this driving handle.
The electrically operated hammer with damping device of the present invention, the housing of this housing unit probably presents L-type, and there is a contrary leading section and a rearward end, this rearward end has a contrary upside and a downside, be connected to this leading section on the upside of this and arrange for this orbit determination arc bar, the pivot joint end for this driving handle on the downside of this is pivoted.
The electrically operated hammer with damping device of the present invention, this housing unit also comprises one and to be fixedly arranged on below this leading section and the auxiliary gripping handle being parallel to this rearward end.
Beneficial effect of the present invention is: this damping device utilizes this orbit determination arc bar, the linear vibration that this hammer stem can be moved back and forth and this driving handle with this pivot joint end for fulcrum and beat vibrations, be integrated into same vibrations path, make the uniform force of this elastic component, thus reduce the torsional deformation degree of this elastic component, and make this driving handle by this orbit determination arc bar guiding and really move along self beat path, and then reach simplify overall structure, reinforcement structural strength, increase the service life and increase hammer stem and hit accuracy effect.
Accompanying drawing explanation
Fig. 1 is the combination of side view that the present invention has the preferred embodiment of the electrically operated hammer of damping device; And
Fig. 2 is that of this preferred embodiment uses schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 1 and Fig. 2, the present invention has the preferred embodiment of the electrically operated hammer of damping device, comprises a housing unit 1, electrically operated hammer unit 2 and a damping device 3.
This housing unit 1 comprises a housing 11, auxiliary gripping and 12 and one is driven handle 13.
This housing 11 probably presents L-type and has a contrary leading section 111 and a rearward end 112, and this rearward end 112 has contrary upside 113 and a downside 114 being connected to this leading section 111.
This auxiliary gripping to be fixedly arranged on below this leading section 111 12 and to be parallel to this rearward end 112.
This driving handle 13 has the pivot joint end 131 that is hubbed at this rearward end 112, and one in contrast to this pivot joint end 131 and the free end 132 that can swing for fulcrum with this pivot joint end 131.In the present embodiment, this pivot joint end 131 is hubbed at the downside 114 of this rearward end 112, but is understandable that, this pivot joint end 131 also can be articulated on the upside of this 113 and ad-hoc location on the downside of this between 114, thus adjusts the start amplitude of oscillation of this driving handle 13.
This electrically operated hammer unit 2 comprises a hammer stem 21, and a driving group 22 being installed on this rearward end 112.This hammer stem 21 stretches through and is installed on this leading section 111, can be driven by this driving group 22 and move back and forth along its length direction.
This damping device 3 comprises a flexible beam 31, orbit determination arc bar 32, flexible dirt-proof boot 33 and an elastic component 34.
This beam 31 is located between the downside 114 of this rearward end 112 and the pivot joint end 131 of this driving handle 13.
This orbit determination arc bar 32 connects between this rearward end 112 and this driving handle 13, and extends along the swing path of this free end 132 and activity is extended through the driving handle 13 of this housing unit 1.This orbit determination arc bar 32 has the connecting end portion 321 that is fixedly installed on the upside 113 of this rearward end 112, and one is extended through the sprung end 322 of the free end 132 of this driving handle 13 in contrast to this connecting end portion 321.
This dirt-proof boot 33 is located between the sprung end 322 of this orbit determination arc bar 32 and the free end 132 of this driving handle 13, enters this driving handle 13 in order to avoid dust.
This elastic component 34 is arranged in this driving handle 13, and two ends are butted in the sprung end 322 of this orbit determination arc bar 32 and the free end 132 of this driving handle 13 respectively.In the present embodiment, this elastic component 34 is Compress Spring.
Generally speaking, the present invention in operation, utilize this orbit determination arc bar 32, the linear vibration that this hammer stem 21 can be moved back and forth and this driving handle 13 with this pivot joint end 131 for fulcrum and beat vibrations, be integrated into same vibrations path, make the uniform force of this elastic component 34, thus reduce the torsional deformation degree of this elastic component 34, compared to known Aseismatic Design, overall structure can be simplified, reach increase structural strength, increase the service life and effect of effectively damping, moreover, because the free end 132 of this driving handle 13 will be guided by this orbit determination arc bar 32, this driving handle 13 is moved along self beat path really, also there is the advantage of hitting a degree of accuracy increasing this hammer stem 21, therefore really can reach object of the present invention.
It is worth mentioning that, the connecting end portion 321 of this orbit determination arc bar 32, also the free end 132 being fixedly arranged on this driving handle 13 can be changed into, and make this sprung end 322 be extended through the upside 113 of this rearward end 112, and this elastic component 34 is changed into be arranged at this housing 11, make two ends butted in this sprung end 322 and the rearward end 112 of this housing 11 respectively, damping object can be reached equally.
Claims (8)
1. there is an electrically operated hammer for damping device, it is characterized in that comprising:
A housing unit, comprise a housing and one and drive handle, described driving handle has the pivot joint end that is hubbed at described housing, and one in contrast to described pivot joint end and can with described pivot joint end for fulcrum and the free end that swings;
An electrically operated hammer unit, comprises one and stretches through and install the hammer stem of described housing unit, and a driving group, and described hammer stem can be driven by described driving group and move back and forth along its length direction; And
A damping device, comprise an orbit determination arc bar connected between described housing and described free end, and one butted in the elastic component of described orbit determination arc bar and described housing unit, described orbit determination arc bar extends along the swing path of described free end and activity is extended through described housing unit.
2. there is the electrically operated hammer of damping device as claimed in claim 1, it is characterized in that: the housing of described housing unit has a contrary leading section and a rearward end, described driving handle is hubbed at described rearward end, described location arc bar is connected between described rearward end and described free end, the orbit determination arc bar of described damping device has the connecting end portion that is fixedly installed on described rearward end, and one is extended through the sprung end of the free end of described driving handle in contrast to described connecting end portion, it is interior and butted in described sprung end and described free end that described elastic component is arranged at described driving handle.
3. there is the electrically operated hammer of damping device as claimed in claim 2, it is characterized in that: the elastic component of described damping device is Compress Spring.
4. there is the electrically operated hammer of damping device as claimed in claim 1, it is characterized in that: described damping device also comprises a flexible dirt-proof boot be located between described orbit determination arc bar and described housing unit.
5. there is the electrically operated hammer of damping device as claimed in claim 4, it is characterized in that: the housing of described housing unit has a contrary leading section and a rearward end, described driving handle is hubbed at described rearward end, described location arc bar is connected between described rearward end and described free end, the orbit determination arc bar of described damping device has the connecting end portion that is fixedly installed on described rearward end, and one is extended through the sprung end of the free end of described driving handle in contrast to described connecting end portion, it is interior and butted in described sprung end and described free end that described elastic component is arranged at described driving handle, described dirt-proof boot is located between described sprung end and described free end.
6. there is the electrically operated hammer of damping device as claimed in claim 1, it is characterized in that: described damping device also comprises the flexible beam between a pivot joint end being located in described housing and described driving handle.
7. there is the electrically operated hammer of damping device as claimed in claim 1, it is characterized in that: the housing of described housing unit is L-type, and there is a contrary leading section and a rearward end, described rearward end has a contrary upside and a downside, described upside is connected to described leading section and arranges for described orbit determination arc bar, and described downside is pivoted for the pivot joint end of described driving handle.
8. there is the electrically operated hammer of damping device as claimed in claim 7, it is characterized in that: described housing unit also comprises one and to be fixedly arranged on below described leading section and the auxiliary gripping handle being parallel to described rearward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248264.4A CN104227663B (en) | 2013-06-20 | 2013-06-20 | Automatic mallet with damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310248264.4A CN104227663B (en) | 2013-06-20 | 2013-06-20 | Automatic mallet with damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104227663A true CN104227663A (en) | 2014-12-24 |
| CN104227663B CN104227663B (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310248264.4A Active CN104227663B (en) | 2013-06-20 | 2013-06-20 | Automatic mallet with damping device |
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| Country | Link |
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| CN (1) | CN104227663B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422386A (en) * | 2017-02-15 | 2018-08-21 | 罗伯特·博世有限公司 | Hand held power machine |
| CN109333459A (en) * | 2018-08-18 | 2019-02-15 | 衡玉珍 | A kind of damping electric hammer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697456A (en) * | 1995-04-10 | 1997-12-16 | Milwaukee Electric Tool Corp. | Power tool with vibration isolated handle |
| DE10036078B4 (en) * | 2000-07-25 | 2007-04-05 | Robert Bosch Gmbh | Hand tool machine with a handle and an insulating device |
| US20100012339A1 (en) * | 2006-03-03 | 2010-01-21 | Black And Decker Inc. | Handle damping system |
| CN201529977U (en) * | 2009-10-29 | 2010-07-21 | 浙江恒友机电有限公司 | Handle damping structure in electric hammer or hammer drill |
| CN201586964U (en) * | 2009-10-29 | 2010-09-22 | 浙江恒友机电有限公司 | Handle shock-absorbing structure used in electric hammer or hammer drill |
-
2013
- 2013-06-20 CN CN201310248264.4A patent/CN104227663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697456A (en) * | 1995-04-10 | 1997-12-16 | Milwaukee Electric Tool Corp. | Power tool with vibration isolated handle |
| DE10036078B4 (en) * | 2000-07-25 | 2007-04-05 | Robert Bosch Gmbh | Hand tool machine with a handle and an insulating device |
| US20100012339A1 (en) * | 2006-03-03 | 2010-01-21 | Black And Decker Inc. | Handle damping system |
| CN201529977U (en) * | 2009-10-29 | 2010-07-21 | 浙江恒友机电有限公司 | Handle damping structure in electric hammer or hammer drill |
| CN201586964U (en) * | 2009-10-29 | 2010-09-22 | 浙江恒友机电有限公司 | Handle shock-absorbing structure used in electric hammer or hammer drill |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422386A (en) * | 2017-02-15 | 2018-08-21 | 罗伯特·博世有限公司 | Hand held power machine |
| CN109333459A (en) * | 2018-08-18 | 2019-02-15 | 衡玉珍 | A kind of damping electric hammer |
| CN109333459B (en) * | 2018-08-18 | 2021-08-17 | 浙江信普工贸有限公司 | Shock attenuation electric hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104227663B (en) | 2017-04-26 |
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