CN109333459A - A kind of damping electric hammer - Google Patents
A kind of damping electric hammer Download PDFInfo
- Publication number
- CN109333459A CN109333459A CN201810944221.2A CN201810944221A CN109333459A CN 109333459 A CN109333459 A CN 109333459A CN 201810944221 A CN201810944221 A CN 201810944221A CN 109333459 A CN109333459 A CN 109333459A
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- Prior art keywords
- handle
- electric hammer
- main body
- typed
- ripple
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses a kind of damping electric hammers, including electric hammer main body, rear handle, preceding handle, the preceding upper end of handle is connect by the first dampening assembly with the rear upper end vertical rotating of electric hammer main body after described, the preceding lower end of handle is connect by the second dampening assembly with the posterior end lateral rotation of electric hammer main body after described, first dampening assembly and the second dampening assembly cooperate, vibration of the electric hammer main body to all directions can be effectively absorbed, the vibration of rear handle is substantially reduced；The preceding handle plays damping action to the transmitting of vibration using wind spring, the multiple shock absorber parts of liquid, and the vibration of handle is significantly reduced before making；So that the right-hand man for holding preceding handle and rear handle is not felt numb fatigue, the vibration of electric hammer main body is avoided to cause harm to the human body.
Description
Technical field
The invention belongs to hardware tool technical field, specially a kind of damping electric hammer.
Background technique
Electric hammer is a kind of tool removed by rotation and hammering to working media, hammers the vibration frequency generated
Major part acts on human body, causes to hold phenomena such as finger generates numb fatigue, whitens, especially powerful electric hammer is brighter
Its operation difficulty is increased aobviously.Most of electric hammer is not no shock-damping structure, handle and tool body in the prior art
Between be directly connected and fixed with screw, i.e., using rigid connection, the vibration frequency that hammering generates so does not weaken
It is just applied directly on arm, numb fatigue is just felt in user's short time in use, human body is caused to damage.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of damping electric hammer.
The technical scheme adopted by the invention is that: a kind of damping electric hammer, including electric hammer main body, setting are in electric hammer body rear
Rear handle, the preceding handle of electric hammer body front end is set, it is characterized in that:
The preceding upper end of handle is connected by the first dampening assembly with the rear upper end of electric hammer main body after described, the first dampening assembly packet
Include the first U-typed seat, first connecting rod, the first pin shaft, the first rubber washer, the first nut, the first spring, the first ripple elasticity
Set；The first U-typed seat is fixed on the rear upper end of electric hammer main body, and the first U-typed seat is equipped with the first U-typed slot, the
The notch of one U-typed slot be it is vertical, the first U-typed slot be equipped with the first through hole；The front end of the first connecting rod is set
There is the first plate, the first plate matches with the first U-typed slot, and the first plate is equipped with first shaft hole, after first connecting rod
End is equipped with the first inserted link, after the first inserted link can be inserted into handle and can in rear handle telescopic slide；First pin shaft penetrates
First through hole, first shaft hole are simultaneously fixed in first shaft hole, and the first pin shaft both ends are equipped with external screw thread；First rubber washer
It is two, is set on the first pin shaft both ends respectively and is embedded on the first through hole；First nut is two, is respectively screw
On the external screw thread at the first pin shaft both ends；First spring is set on the first inserted link, and one end of the first spring connects with first
Bar is connected, and the other end is connected with rear handle；The first ripple resilient sleeve wraps up the first U-typed seat, first connecting rod, the
One end of one ripple resilient sleeve is connected with electric hammer main body, and the other end is connected with rear handle；Due to the first dampening assembly and electricity
Main body is hammered into shape to connect using vertical rotating, in addition the effect of the first rubber washer, the first spring, the first ripple resilient sleeve, therefore the
One dampening assembly has obvious damping effect to vertical, front and back vibration；
The preceding lower end of handle is connected by the second dampening assembly with the posterior end of electric hammer main body after described, the second dampening assembly packet
Include the second U-typed seat, second connecting rod, the second pin shaft, the second rubber washer, the second nut, second spring, the second ripple elasticity
Set；The second U-typed seat is fixed on the posterior end of electric hammer main body, and the second U-typed seat is equipped with the second U-typed slot, the
The notch of two U-typed slots is that laterally, the second U-typed slot is equipped with the second through hole；The front end of the second connecting rod is set
There is the second plate, the second plate matches with the second U-typed slot, and the second plate is equipped with the second axis hole, after second connecting rod
End is equipped with the second inserted link, after the second inserted link can be inserted into handle and can in rear handle telescopic slide；Second pin shaft penetrates
Second through hole, the second axis hole are simultaneously fixed on the second axis hole, and the second pin shaft both ends are equipped with external screw thread；Second rubber washer
It is two, is set on the second pin shaft both ends respectively and is embedded on the second through hole；Second nut is two, is respectively screw
On the external screw thread at the second pin shaft both ends；The second spring is set on the second inserted link, and one end of second spring connects with second
Bar is connected, and the other end is connected with rear handle；The second ripple resilient sleeve wraps up the second U-typed seat, second connecting rod, the
One end of two ripple resilient sleeves is connected with electric hammer main body, and the other end is connected with rear handle；Due to the second dampening assembly and electricity
Main body is hammered into shape to connect using lateral rotation, in addition the effect of the second rubber washer, second spring, the second ripple resilient sleeve, therefore the
Two dampening assemblies have obvious damping effect to the vibration of transverse direction, front and back；First dampening assembly and the second dampening assembly phase interworking
It closes, can effectively absorb vibration of the electric hammer main body to all directions, be substantially reduced the vibration of rear handle；
The preceding handle includes connector, core bar, outer grip cylinder, several wind springs, liquid, third ripple resilient sleeve；The connection
Part is movably set in the front end of electric hammer main body；The core bar is fixed on connector；The outer grip cylinder wrap up core bar and not with core
Bar directly contacts；The wind spring is arranged in outer grip cylinder, and the spring item for constituting wind spring is gradually thicker from inner end to outer end, makes wind spring
The coefficient of stiffiness becomes larger from inner end to outer end, and the inner end of wind spring is fixed on the side wall of core bar, and the outer end of wind spring is fixed on outer
On the inner sidewall of cylinder, the inner end of several wind springs along spiral on the side wall for being evenly distributed on core bar, several wind springs it is outer
End, to being evenly distributed on the inner sidewall of outer grip cylinder, makes core bar stress equalization along spiral, and core bar is located at outer under the effect of balanced power
On cylinder central axes；When core bar vibration, the wind spring inner end being connected with core bar can be caused to shake first and gradually passed outward
It passs, since the coefficient of stiffiness of wind spring becomes larger from inner end to outer end, vibration can gradually decay from inner end to outer end, make and wind spring
The outer grip cylinder that outer end is connected hardly shakes；For the filling liquid in outer grip cylinder, liquid can play damping to the transmitting of vibration
Effect；The third ripple resilient sleeve is set on core bar upper end, and the upper end of third ripple resilient sleeve and core bar are tightly connected, third
The lower end of ripple resilient sleeve and the upper end of outer grip cylinder are tightly connected, and third ripple resilient sleeve seals to liquid, simultaneously also
Damping action is risen to the transmitting of vibration.
Further, first rubber washer, the second rubber washer are gear-like.
Further, handle after described is equipped with anti-skid chequer on preceding handle.
The invention has the advantages that: the first dampening assemblies and the second dampening assembly to cooperate, and can effectively absorb electric hammer master
Vibration of the body to all directions, is substantially reduced the vibration of rear handle；In wind spring, liquid, third ripple resilient sleeve collective effect
Under, prevent the vibration of electric hammer main body from being transmitted to the transmitting of outer grip cylinder, the vibration of handle is significantly reduced before making；Make to hold preceding handle with after
The right-hand man of handle will not feel numb fatigue, and the vibration of electric hammer main body is avoided to cause harm to the human body.
Detailed description of the invention
If Fig. 1 is surface structure schematic diagram of the embodiment of the present invention.
If Fig. 2 is the first dampening assembly structural schematic diagram of the embodiment of the present invention.
If Fig. 3 is the second dampening assembly structural schematic diagram of the embodiment of the present invention.
If Fig. 4 is the single Wind spring structure schematic diagram of the embodiment of the present invention.
If Fig. 5 is handle construction schematic diagram before the embodiment of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to Fig. 1, a kind of damping electric hammer, including electric hammer main body 1, rear handle 2 that 1 rear end of electric hammer main body is arranged in, setting
Preceding handle 3 in 1 front end of electric hammer main body, it is characterized in that:
Referring to Fig. 1,2, the preceding upper end of the rear handle 2 is connected by the first dampening assembly 4 with the rear upper end of electric hammer main body 1,
First dampening assembly 4 includes the first U-typed seat 8, first connecting rod 9, the first pin shaft 10, the first rubber washer 11, the first nut
12, the first spring 13, the first ripple resilient sleeve 14；The first U-typed seat 8 is fixed on the rear upper end of electric hammer main body 1, and first
U-typed seat 8 is equipped with the first U-typed slot 15, and the notch of the first U-typed slot 15 is vertical, the first U-typed slot 15
It is equipped with the first through hole 16；The front end of the first connecting rod 9 is equipped with the first plate 17, and the first plate 17 and the first U-typed are inserted
Slot 15 matches, and the first plate 17 is equipped with first shaft hole 18, and the rear end of first connecting rod 9 is equipped with the first inserted link 19, the first inserted link
19 can be inserted into after in handle 2 and can in rear handle 2 telescopic slide；First pin shaft 10 penetrates the first through hole 16, first
Axis hole 18 is simultaneously fixed in first shaft hole 18, and 10 both ends of the first pin shaft are equipped with external screw thread；First rubber washer 11 is two,
It is set on 10 both ends of the first pin shaft respectively and is embedded on the first through hole 16；First nut 12 is two, is respectively screw
On the external screw thread at 10 both ends of the first pin shaft；First spring 13 is set on the first inserted link 19, one end of the first spring 13
It is connected with first connecting rod 9, the other end is connected with rear handle 2；The first ripple resilient sleeve 14 wraps up the first U-typed seat
8, one end of first connecting rod 9, the first ripple resilient sleeve 14 is connected with electric hammer main body 1, and the other end is connected with rear handle 2；By
It is connect with electric hammer main body 1 using vertical rotating in the first dampening assembly 4, in addition the first rubber washer 11, the first spring 13, first
The effect of ripple resilient sleeve 14, therefore the first dampening assembly 4 has obvious damping effect to vertical, front and back vibration；
Referring to Fig. 1,3, the preceding lower end of the rear handle 2 is connected by the second dampening assembly 5 with the posterior end of electric hammer main body 1,
Second dampening assembly 5 includes the second U-typed seat 20, second connecting rod 21, the second pin shaft 22, the second rubber washer 23, the second nut
24, second spring 25, the second ripple resilient sleeve 26；The second U-typed seat 20 is fixed on the posterior end of electric hammer main body 1, and second
U-typed seat 20 is equipped with the second U-typed slot 27, and the notch of the second U-typed slot 27 is laterally the second U-typed slot
27 are equipped with the second through hole 28；The front end of the second connecting rod 21 is equipped with the second plate 29, the second plate 29 and second " U "
Type slot 27 matches, and the second plate 29 is equipped with the second axis hole 30, and the rear end of second connecting rod 21 is equipped with the second inserted link 31, and second
After inserted link 31 can be inserted into handle 2 and can in rear handle 2 telescopic slide；Second pin shaft 22 penetrate the second through hole 28,
Second axis hole 30 is simultaneously fixed on the second axis hole 30, and 22 both ends of the second pin shaft are equipped with external screw thread；Second rubber washer 23 is
Two, it is set on 22 both ends of the second pin shaft respectively and is embedded on the second through hole 28；Second nut 24 is two, respectively
Spiral is on the external screw thread at 22 both ends of the second pin shaft；The second spring 25 is set on the second inserted link 31, second spring 25
One end is connected with second connecting rod 21, and the other end is connected with rear handle 2；The second ripple resilient sleeve 26 wraps up second " U "
One end of type seat 20, second connecting rod 21, the second ripple resilient sleeve 26 is connected with electric hammer main body 1, and the other end is connected with rear handle 2
It connects；Since the second dampening assembly 5 is connect with electric hammer main body 1 using lateral rotation, in addition the second rubber washer 23, second spring
25, the effect of the second ripple resilient sleeve 26, therefore the vibration of 5 pairs of transverse directions of the second dampening assembly, front and back has obvious damping effect；
First dampening assembly 4 and the second dampening assembly 5 cooperate, and can effectively absorb vibration of the electric hammer main body 1 to all directions, make
The vibration of handle 2 is substantially reduced afterwards；
Referring to Fig. 1,4,5, the preceding handle includes connector 6, core bar 35, outer grip cylinder 36, several wind springs 32, liquid 37,
Three ripple resilient sleeves 38；The connector 6 is movably set in the front end of electric hammer main body 1；The core bar 35 is fixed on connector 6
On；The outer grip cylinder 36 wraps up core bar 35 and does not contact directly with core bar 35；The wind spring 32 is arranged in outer grip cylinder 36, constitutes
The spring item of wind spring 32 is gradually thicker from inner end 34 to outer end 33, becomes the coefficient of stiffiness of wind spring 32 gradually from inner end 34 to outer end 33
Greatly, the inner end 34 of wind spring 32 is fixed on the side wall of core bar 35, and the outer end 33 of wind spring 32 is fixed on the inner sidewall of outer grip cylinder 36,
The inner end 34 of several wind springs 32 is along spiral to being evenly distributed on the side wall of core bar 35, and the outer end 33 of several wind springs 32 is along spiral shell
Rotation direction is evenly distributed on the inner sidewall of outer grip cylinder 36, makes 35 stress equalization of core bar, and core bar 35 is located at outer under the effect of balanced power
On 36 central axes of cylinder；When core bar 35 shake when, can cause first 32 inner end 34 of wind spring being connected with core bar 35 shake and by
Gradually 33 transmitting outward, since the coefficient of stiffiness of wind spring 32 becomes larger from inner end 34 to outer end 33, vibration is from inner end 34 to outer
End 33 can gradually decay, and shake the outer grip cylinder 36 being connected with 32 outer end 33 of wind spring hardly；The liquid 37 is filling outside
In cylinder 36, liquid 37 can play damping action to the transmitting of vibration；The third ripple resilient sleeve 38 is set on 35 upper end of core bar,
The upper end of third ripple resilient sleeve 38 and core bar 35 are tightly connected, the lower end of third ripple resilient sleeve 38 and the upper end of outer grip cylinder 36
It is tightly connected, third ripple resilient sleeve 38 seals to liquid 37, while also playing damping action to the transmitting of vibration.
Further, first rubber washer 10, the second rubber washer 22 are gear-like.
Further, handle 2 after described is equipped with anti-skid chequer 7 on preceding handle 3.
Claims (3)
1. a kind of damping electric hammer, including electric hammer main body, rear handle that electric hammer body rear is set, it is arranged in electric hammer body front end
Preceding handle, it is characterized in that:
The preceding upper end of handle is connected by the first dampening assembly with the rear upper end of electric hammer main body after described, the first dampening assembly packet
Include the first U-typed seat, first connecting rod, the first pin shaft, the first rubber washer, the first nut, the first spring, the first ripple elasticity
Set；The first U-typed seat is fixed on the rear upper end of electric hammer main body, and the first U-typed seat is equipped with the first U-typed slot, the
The notch of one U-typed slot be it is vertical, the first U-typed slot be equipped with the first through hole；The front end of the first connecting rod is set
There is the first plate, the first plate matches with the first U-typed slot, and the first plate is equipped with first shaft hole, after first connecting rod
End is equipped with the first inserted link, after the first inserted link can be inserted into handle and can in rear handle telescopic slide；First pin shaft penetrates
First through hole, first shaft hole are simultaneously fixed in first shaft hole, and the first pin shaft both ends are equipped with external screw thread；First rubber washer
It is two, is set on the first pin shaft both ends respectively and is embedded on the first through hole；First nut is two, is respectively screw
On the external screw thread at the first pin shaft both ends；First spring is set on the first inserted link, and one end of the first spring connects with first
Bar is connected, and the other end is connected with rear handle；The first ripple resilient sleeve wraps up the first U-typed seat, first connecting rod, the
One end of one ripple resilient sleeve is connected with electric hammer main body, and the other end is connected with rear handle；
The preceding lower end of handle is connected by the second dampening assembly with the posterior end of electric hammer main body after described, the second dampening assembly packet
Include the second U-typed seat, second connecting rod, the second pin shaft, the second rubber washer, the second nut, second spring, the second ripple elasticity
Set；The second U-typed seat is fixed on the posterior end of electric hammer main body, and the second U-typed seat is equipped with the second U-typed slot, the
The notch of two U-typed slots is that laterally, the second U-typed slot is equipped with the second through hole；The front end of the second connecting rod is set
There is the second plate, the second plate matches with the second U-typed slot, and the second plate is equipped with the second axis hole, after second connecting rod
End is equipped with the second inserted link, after the second inserted link can be inserted into handle and can in rear handle telescopic slide；Second pin shaft penetrates
Second through hole, the second axis hole are simultaneously fixed on the second axis hole, and the second pin shaft both ends are equipped with external screw thread；Second rubber washer
It is two, is set on the second pin shaft both ends respectively and is embedded on the second through hole；Second nut is two, is respectively screw
On the external screw thread at the second pin shaft both ends；The second spring is set on the second inserted link, and one end of second spring connects with second
Bar is connected, and the other end is connected with rear handle；The second ripple resilient sleeve wraps up the second U-typed seat, second connecting rod, the
One end of two ripple resilient sleeves is connected with electric hammer main body, and the other end is connected with rear handle；
The preceding handle includes connector, core bar, outer grip cylinder, several wind springs, liquid, third ripple resilient sleeve；The connection
Part is movably set in the front end of electric hammer main body；The core bar is fixed on connector；The outer grip cylinder wrap up core bar and not with core
Bar directly contacts；The wind spring is arranged in outer grip cylinder, and the spring item for constituting wind spring is gradually thicker from inner end to outer end, makes wind spring
The coefficient of stiffiness becomes larger from inner end to outer end, and the inner end of wind spring is fixed on the side wall of core bar, and the outer end of wind spring is fixed on outer
On the inner sidewall of cylinder, the inner end of several wind springs along spiral on the side wall for being evenly distributed on core bar, several wind springs it is outer
End, to being evenly distributed on the inner sidewall of outer grip cylinder, makes core bar stress equalization along spiral, and core bar is located at outer under the effect of balanced power
On cylinder central axes；For the filling liquid in outer grip cylinder, liquid can play damping action to the transmitting of vibration；The third ripple
Resilient sleeve is set on core bar upper end, and the upper end of third ripple resilient sleeve and core bar are tightly connected, the lower end of third ripple resilient sleeve
It is tightly connected with the upper end of outer grip cylinder, third ripple resilient sleeve seals to liquid, while also playing resistance to the transmitting of vibration
Buddhist nun's effect.
2. a kind of damping electric hammer according to claim 1, it is characterized in that: first rubber washer, the second rubber washer are equal
For gear-like.
3. a kind of damping electric hammer according to claim 1, it is characterized in that: being equipped with anti-skid chequer on the rear handle, preceding handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810944221.2A CN109333459B (en) | 2018-08-18 | 2018-08-18 | Shock attenuation electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810944221.2A CN109333459B (en) | 2018-08-18 | 2018-08-18 | Shock attenuation electric hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109333459A true CN109333459A (en) | 2019-02-15 |
| CN109333459B CN109333459B (en) | 2021-08-17 |
Family
ID=65296848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810944221.2A Active CN109333459B (en) | 2018-08-18 | 2018-08-18 | Shock attenuation electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109333459B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820903A (en) * | 2005-02-18 | 2006-08-23 | 罗伯特·博世有限公司 | Hand-held machine tool |
| 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 |
| CN101925440A (en) * | 2008-01-25 | 2010-12-22 | 罗伯特.博世有限公司 | Handheld power tool, in particular electrically driven handheld power tool |
| EP2415562A2 (en) * | 2010-08-05 | 2012-02-08 | Black & Decker Inc. | Rear handle |
| CN202292684U (en) * | 2011-09-16 | 2012-07-04 | 楼其榜 | Vibration-damping electric hammer and electric pickax |
| CN104227663A (en) * | 2013-06-20 | 2014-12-24 | 力山工业股份有限公司 | Automatic mallet with damping device |
| CN204308922U (en) * | 2014-12-23 | 2015-05-06 | 浙江博大实业有限公司 | Portable multifunctional electric hammer |
| CN205889070U (en) * | 2016-07-19 | 2017-01-18 | 福建惠安县坚固电机有限公司 | Shock attenuation electric hammer and electric pick |
-
2018
- 2018-08-18 CN CN201810944221.2A patent/CN109333459B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820903A (en) * | 2005-02-18 | 2006-08-23 | 罗伯特·博世有限公司 | Hand-held machine tool |
| CN101925440A (en) * | 2008-01-25 | 2010-12-22 | 罗伯特.博世有限公司 | Handheld power tool, in particular electrically driven handheld power tool |
| 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 |
| EP2415562A2 (en) * | 2010-08-05 | 2012-02-08 | Black & Decker Inc. | Rear handle |
| CN202292684U (en) * | 2011-09-16 | 2012-07-04 | 楼其榜 | Vibration-damping electric hammer and electric pickax |
| CN104227663A (en) * | 2013-06-20 | 2014-12-24 | 力山工业股份有限公司 | Automatic mallet with damping device |
| CN204308922U (en) * | 2014-12-23 | 2015-05-06 | 浙江博大实业有限公司 | Portable multifunctional electric hammer |
| CN205889070U (en) * | 2016-07-19 | 2017-01-18 | 福建惠安县坚固电机有限公司 | Shock attenuation electric hammer and electric pick |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109333459B (en) | 2021-08-17 |
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Effective date of registration: 20210729 Address after: No. 577, Huajie West Avenue, Huajie Town, Yongkang City, Jinhua City, Zhejiang Province 321000 Applicant after: ZHEJIANG XINPU INDUSTRY AND TRADE Co.,Ltd. Address before: 476000 lianghao family home, Suiyang District, Shangqiu City, Henan Province Applicant before: Heng Yuzhen |
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