CN101367206A - Nailing gun - Google Patents
Nailing gun Download PDFInfo
- Publication number
- CN101367206A CN101367206A CNA2007101817819A CN200710181781A CN101367206A CN 101367206 A CN101367206 A CN 101367206A CN A2007101817819 A CNA2007101817819 A CN A2007101817819A CN 200710181781 A CN200710181781 A CN 200710181781A CN 101367206 A CN101367206 A CN 101367206A
- Authority
- CN
- China
- Prior art keywords
- beater wheel
- rotating shaft
- nail
- ailing machine
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention relates to a nail gun which comprises a motor and a transmission mechanism in a shell, wherein the shell is provided with a convex part in which a nailing pin capable of reciprocating; a rotating shaft connected with an output shaft of the motor through the transmission mechanism is supported in the shell; an impulse wheel is sleeved on the rotating shaft and can rotate with the rotating shaft; the periphery of the impulse wheel is provided with at least one protrusion; and when the protrusion rotates with the impulse wheel to a preset position, the protrusion contacts the nailing pin tangentially. The nail gun reasonably arranges the motor and a driving mechanism, so the nail gun has a compact structure, can realize continuously high-efficiency striking of a nail, and effectively avoids the trouble that the primary injection type nail gun can not nail the nail under certain working environment.
Description
Technical field
The present invention relates to a kind of ailing machine, especially a kind of Electric Tacker belongs to the electric tool technical field.
Background technology
Ailing machine is a kind of hand-held tool commonly used, and it is of a great variety.Understand according to the applicant, according to power source, ailing machine can be divided into pneumatic and electronic two big classes.Wherein, gas pin gun must have compressed air source, therefore uses limited.The basic structure of Electric Tacker can reduce: the motor that is placed in the rifle body is connected with the nail hitting pin that is placed in rifle head place by rotation-rectilinear motion transmission mechanism, thereby can convert electrical energy into reciprocating mechanical energy under switch control.
The patent No. is that the United States Patent (USP) of US6431430 and pct international patent application that publication number is WO2006/008546 all disclose with slider-crank mechanism as rotation-rectilinear motion transmission mechanism and with the Electric Tacker of battery as power supply.The problem one that this type of ailing machine exists is that slider-crank mechanism can not be realized impacting truly coming down to a kind of " pushing away " nailing machine structure, and the operating efficiency of therefore each nailing is not high; The 2nd, motor is placed in handle the place ahead or rear side, is connected with transmission mechanism and occupies than large space, makes that the ailing machine volume is bigger, and it is all convenient inadequately to carry and manipulate.
Number of patent application is that 200410088827.9 Chinese patent application discloses and a kind ofly by pinion and rack the motor rotation is converted to the active force of compression spring earlier, relends and helps tripping mechanism to discharge the compression spring, thereby produce the ailing machine of impulsive force.Though this ailing machine utilizes spring energy-storage, realized the moment of nail is impacted, can only click one by one, can't impact continuously, the therefore long-term operating efficiency of using is still not high; In addition, its motor is in the casing of rifle head below, separates fully with handle, still has the not compact problem of structure.
Summary of the invention
The objective of the invention is to: the shortcoming at above-mentioned prior art exists proposes a kind of Electric Tacker that impacts usefulness continuously that has.
In order to reach above purpose, the basic technical scheme of Electric Tacker of the present invention is: comprise the motor and the transmission mechanism that are placed in the casing; Described casing has projection, wherein settles reciprocating nail hitting pin; Wherein: described casing is supported with the rotating shaft that is connected with motor output shaft by transmission mechanism, is set with the beater wheel that can thereupon rotate on the described rotating shaft; The outer rim of described beater wheel has at least one place projection; When described projection rotates to the precalculated position with beater wheel, tangential and nail hitting pin contacts.
Above basic technical scheme refinement preferably is, described casing upper end has projection, described rotating shaft is and the vertical substantially feathering axis of nail hitting pin, when described projection rotates to the extreme higher position with beater wheel, tangential and nail hitting pin contacts, described nail hitting pin is placed in the projection on the casing by back-moving spring.
When the rotation of motor is converted to beater wheel after the rotation of rotating shaft by transmission mechanism, projection on the beater wheel will be weekly at predetermined tangentially contact impact nail hitting pin once, be converted to the rectilinear motion that the nail hitting pin impacts nail thereby will rotatablely move, thereby finish electronic nailing.Owing to have certain tangential initial velocity during the projection of beater wheel contact nail hitting pin, therefore can produce than advancing and impact effect more efficiently, and beater wheel just can be realized impacting continuously when continuing to rotate.
Impact usefulness in order to improve, the further well designed of ailing machine of the present invention is: be shaped on the opposite respective slot of incline direction on described rotating shaft and the beater wheel respectively; In the described respective slot joggle piece is housed; Between one end of described rotating shaft and the beater wheel energy-storaging spring is housed; Described beater wheel has first and second axial locations with respect to rotating shaft; When being in first axial location, the protruding circular motion disengaging of described beater wheel and contacting of nail hitting pin, described energy-storaging spring is in pressured state; When being in second axial location, the precalculated position of existence and nail hitting pin contacts in the protruding circular motion of described beater wheel, described energy-storaging spring is in unfolds state.
This well designed make in the ailing machine the nail hitting pin be subjected to temporarily can't overcoming impact resistance more greatly the time, to force beater wheel at groove with wherein under the effect of joggle piece, towards the primary importance of compress energy storage spring with respect to rotating shaft axial displacement, thereby beater wheel is changed into the elastic potential energy of compress energy storage spring by the mechanical energy of temporary transient stop; And when beater wheel break away from the nail hitting pin contacts of being obstructed after, energy-storaging spring will discharge elastic potential energy, make beater wheel at groove with wherein under the effect of joggle piece, normally revolve the speed rotation of speed to surmount rotating shaft, thereby produce more strong impact, periodic realization efficiently impacts.
In a word, adopt the ailing machine of structure of the present invention owing to rationally be provided with motor and driving mechanism, thereby compact conformation, can realize the continuous high-efficient of a nail is hit, effectively avoided under some working environment, using the disposable trouble that the type ailing machine can't hammer into nail of injecting.Especially, accumulating mechanism makes this ailing machine have the very good usefulness that impacts.Compared with prior art, have outstanding substantive distinguishing features and obvious improvement, be adapted to different workplaces.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is that the present invention preferably implements one schematic perspective view.
Fig. 2 is the cutaway view that ailing machine shown in Figure 1 is done along the parting surface of two halves casing, and wherein, power brick is removed.
Fig. 3 is the cutaway view that ailing machine shown in Figure 1 edge is done perpendicular to the direction of two halves casing parting surface, and wherein, power brick is removed.
Fig. 4 is the part explosive view of ailing machine transmission device among Fig. 1.
Fig. 5 is the profile of beater wheel among Fig. 1 embodiment.
Fig. 6 is the front view of rotating shaft among Fig. 1 embodiment.
Fig. 7 is the motion state schematic diagram of steel ball among Fig. 1 embodiment, beater wheel inwall guide groove and rotating shaft skewed slot.
Fig. 8 is that the present invention preferably implements two schematic perspective view.
Fig. 9 is the cutaway view that ailing machine shown in Figure 8 is done along the parting surface of two halves casing, and wherein, power brick is removed.
Figure 10 is that ailing machine shown in Figure 8 is along the cutaway view of doing perpendicular to the direction of two halves casing parting surface.
Specific embodiments
As depicted in figs. 1 and 2, the ailing machine 1 of present embodiment comprises and holds motor 2 at interior casing 3 and rifle mouth portion 4, and casing 3 is involuted by left and right sides two halves casing 31,32.The main part of casing 3 forms vertical substantially lever, and the upper end is protruded forward and formed rifle mouth portion 4.
In the present embodiment, ailing machine 1 comprises a power brick 5, is used for to motor 2 power supplies.But disclosed ailing machine power supply mode is not limited thereto, and also can use AC-powered.Switch 6 is installed on the casing 3, is used to control the start and stop of motor 2.But rifle mouth portion 4 comprises the nail hitting pin 41 of a pushing tow nail 7, and nail hitting pin 41 basic horizontal are installed in the rifle mouth portion 4 by spring 42, and can do straight reciprocating motion therein.During operation, nail hitting pin 41 end-acted in the head of nail 7.Also contain one in the rifle mouth portion 4 and hold nail mouthfuls 43, hold nail mouthfuls 43 be designed to can indentation structure, and can comprise a magnetic part, be used for nail 7 is adsorbed on and hold in the nail mouthfuls 43.In addition, hold and follow closely mouthful 43 internal diameters that have greater than general nail diameter, so the nail of various sizes all can be put in the appearance nail mouth 43.
To shown in Figure 7, casing 3 contains rotation as Fig. 3---and the rectilinear motion transmission mechanism, this mechanism can be converted to rotatablely moving of motor 2 ballistic motion of nail hitting pin 41.Motor 2 vertically is installed in the casing 3, and motor shaft 21 up passes to rotary power on the rotating shaft 8 that is supported on casing top by bearings at both ends by comprising the multi-stage gear transmission of bevel gear.Have a pair of skewed slot 9 on the rotating shaft 8,9 one-tenth openings of each skewed slot " V " font backwards.One beater wheel 10 is enclosed within on the rotating shaft 8, and this beater wheel 10 is roughly the cylinder of a hollow, and its inner cylinder face is provided with a pair of circular arc guide groove 11 relative respectively with two skewed slots, 9 positions, and the circular arc opening direction of each guide groove 11 is opposite with " V " shape skewed slot 9.Skewed slot 9 and guide groove 11 are at the bottom of the semi arch.A pair of steel ball 12 lays respectively in the cavity volume that forms between corresponding skewed slot 9 and the guide groove 11, can relatively move along skewed slot 9 and guide groove 11.So can drive beater wheel 10 by the steel ball 12 that is positioned at skewed slot 9 when rotating shaft 8 rotates rotates.Energy-storaging spring 13 is loaded between beater wheel 10 and the rotating shaft 8, the one end withstands on the step 81 of rotating shaft 8, the other end withstands on the beater wheel 10, the axial force of this energy-storaging spring 13 makes rotating shaft 8 and beater wheel 10 when static and rotation, steel ball 12 is positioned at the top of skewed slot 9 and the bottom of guide groove 11, shown in Fig. 7 solid line part.At this moment, beater wheel 10 is in first axial location of relative rotation axi 8.
As Fig. 2 and shown in Figure 4, a pair of latch 15 is fixedly mounted in the casing 3, and the outer rim of close beater wheel 10.The a pair of projection 14 that is oppositely arranged along diametric(al) is arranged on the excircle of beater wheel 10.After operating switch 6, motor 2 starts, and by the multi-stage gear transmission, driven rotary axle 8 rotates, and rotating shaft 8 drives beater wheel 10 by steel ball 12 again and rotates together thereupon.As shown in Figure 7, when beater wheel 10 turns to a certain position when making that projection 14 is run into latch 15, latch 15 is temporary transient to stop beater wheels 10 to rotate the (guide groove 11 on this moment beater wheel 10, skewed slot 9 on steel ball 12 and the rotating shaft 8 is arranged in position shown in the figure solid line), and the continuation of rotating shaft 8 rotation makes the skewed slot 9 among Fig. 7 turn to position shown in the dotted line in the direction of arrow A, so steel ball 12 moves down relatively along skewed slot 9, drive beater wheel 10 and correspondingly be displaced to second axial location (arriving position shown in Fig. 7 dotted line) by first axial location energy-storaging spring 13 that gradually reduces.In this second place, the projection 14 of beater wheel 10 has been crossed latch 15, and braking is eliminated.The bounce of energy-storaging spring 13 not only makes beater wheel 10 axially reset towards primary importance, and passes through the acting in conjunction of skewed slot 9, guide groove 11 and steel ball 12, produces the high speed rotation that surmounts rotating shaft.As a result, the end face of the projection 14 bump nail hitting pins 41 on the beater wheel 10, compression reseting spring 42 with high-effect bump nail 7, forms one-shot.After impact was finished for the first time, nail hitting pin 41 returned to original position under the bounce effect of back-moving spring 42.When beater wheel 10 turns to once more by latch 15 brakings, enter impulse period for the second time, and the impact process after finishing in an identical manner.
Need to prove, in the present embodiment, " V " font skewed slot 9 circular arc guide groove 11 opposite with opening that tilts towards both direction cooperatively interacts, can realize no matter motor is just changeing still counter-rotating, also be that rotating shaft 8 rotates towards either direction, ailing machine all has identical nailing function, and in other words, the action effect of ailing machine can not be subjected to the influence of motor steering.If skewed slot 9 and guide groove 11 are respectively the skewed slots of the opposite single direction of incline direction, obviously also can realize required nailing function, only to the restricted requirement of the direction of rotation of motor.
Embodiment two
The ailing machine of present embodiment such as Fig. 8, Fig. 9 and shown in Figure 10, obviously different though seem in appearance with embodiment one, the casing 30 that removes after the power brick is the T font, motor 20 is not that positioned vertical is in the shank part position, but horizontal setting is at rifle mouth portion 40 rear sides of casing 30, but the transmission mechanism that it is inner and to impact operation principle basic identical is not given unnecessary details in addition.
Except that the shape of individual part there are differences, transmission mechanism and impact the remarkable difference that principle exists and be among present embodiment and the embodiment one: do not have latch in the ailing machine of present embodiment.In the operation, when nail need be followed closely on hard objects, the nail hitting pin might be subjected to temporarily can't overcoming impacts resistance more greatly, therefore as the contact latch, to force beater wheel at groove with wherein under the effect of joggle piece, towards the primary importance of compress energy storage spring with respect to rotating shaft axial displacement; And when beater wheel break away from the nail hitting pin contacts of being obstructed after, as breaking away from the spacing of latch, energy-storaging spring will discharge elastic potential energy, make beater wheel at groove with wherein under the effect of joggle piece, normally revolve fast speed rotation to surmount rotating shaft, thereby produce strong impact, realize efficiently impacting.
Hence one can see that, do not having under the situation of latch, ailing machine also can make beater wheel under certain condition in the process of rotating shaft uniform rotation, when realizing self and suspend, the time and the at a high speed periodicity variable motion of rotation and is rotated generation at a high speed by it and is periodically efficiently impacted effect.
In addition, spring 130,420 also available other elasticity in the foregoing description or the biasing device with attraction, repulsive force replace, and for example can replace spring 130,420 with magnetic part.
Generally speaking, the ailing machine of the present invention's announcement is not limited to described content of above embodiment and the represented structure of accompanying drawing.On basis of the present invention to the shape of member wherein and the change apparently that makes the position, substitute or revise, all within the scope of protection of present invention.
Claims (8)
1. an ailing machine comprises the motor and the transmission mechanism that are placed in the casing; Described casing has projection, wherein settles reciprocating nail hitting pin; It is characterized in that: described casing is supported with the rotating shaft that is connected with motor output shaft by transmission mechanism, is set with the beater wheel that can thereupon rotate on the described rotating shaft; The outer rim of described beater wheel has at least one place projection; When described projection rotates to the precalculated position with beater wheel, tangential and nail hitting pin contacts.
2. ailing machine as claimed in claim 1, it is characterized in that: described casing upper end has projection, described rotating shaft is and the vertical substantially feathering axis of nail hitting pin, when described projection rotates to the extreme higher position with beater wheel, tangential and nail hitting pin contacts, described nail hitting pin is placed in the projection on the casing by back-moving spring.
3. ailing machine as claimed in claim 1 or 2 is characterized in that: be shaped on the opposite respective slot of incline direction on described rotating shaft and the beater wheel respectively; In the described respective slot joggle piece is housed; Between one end of described rotating shaft and the beater wheel energy-storaging spring is housed; Described beater wheel has first and second axial locations with respect to rotating shaft; When being in first axial location, the protruding circular motion disengaging of described beater wheel and contacting of nail hitting pin, described energy-storaging spring is in pressured state; When being in second axial location, the precalculated position of existence and nail hitting pin contacts in the protruding circular motion of described beater wheel, described energy-storaging spring is in unfolds state.
4. ailing machine as claimed in claim 3 is characterized in that: also contain and the relatively-stationary latch of casing; When described beater wheel is positioned at first axial location, there is the arrested state that contacts with latch in the described protruding circular motion, under described arrested state, described beater wheel produces the trend that the compress energy storage spring is transferred to second axial location; When being positioned at second axial location, described protruding circular motion disengaging contacts with latch, and described beater wheel produces the trend that returns to first axial location and surmount the rotating shaft rotation.
5. ailing machine as claimed in claim 4 is characterized in that: have a pair of skewed slot on the described rotating shaft, described each skewed slot becomes opening " V " font backwards; Have a pair of circular arc guide groove relative respectively with two skewed slot positions on the described beater wheel inner cylinder face, the circular arc opening direction of described each guide groove is opposite with " V " font skewed slot.
6. ailing machine as claimed in claim 5 is characterized in that: battery case is installed in described casing lower end, and switch is equipped with at the lever position, and the battery in the described battery case is electrically connected with motor by switch.
7. ailing machine as claimed in claim 6 is characterized in that, the outer end, position of protracting of described casing upper end forms the appearance nail mouth that can insert ailhead, and described appearance nail mouth contains and ailhead magnetic contact.
8. ailing machine as claimed in claim 7 is characterized in that: described transmission mechanism is to contain the engagement transmission mechanism that vertical axis turns to transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101817819A CN101367206B (en) | 2007-08-14 | 2007-09-29 | Nailing gun |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720042846 | 2007-08-14 | ||
| CN200720042846.7 | 2007-08-14 | ||
| CN2007101817819A CN101367206B (en) | 2007-08-14 | 2007-09-29 | Nailing gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101367206A true CN101367206A (en) | 2009-02-18 |
| CN101367206B CN101367206B (en) | 2010-06-02 |
Family
ID=40411269
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101817819A Active CN101367206B (en) | 2007-08-14 | 2007-09-29 | Nailing gun |
| CN2008101248263A Active CN101407049B (en) | 2007-08-14 | 2008-06-17 | Nailing gun |
| CN201110061971.3A Active CN102133748B (en) | 2007-08-14 | 2008-06-17 | Nailing gun |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101248263A Active CN101407049B (en) | 2007-08-14 | 2008-06-17 | Nailing gun |
| CN201110061971.3A Active CN102133748B (en) | 2007-08-14 | 2008-06-17 | Nailing gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN101367206B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065222A (en) * | 2010-11-19 | 2011-05-18 | 航天科工深圳（集团）有限公司 | Device and method for controlling space shooting shutter in unmanned helicopter |
| CN103213107A (en) * | 2012-01-19 | 2013-07-24 | 南京德朔实业有限公司 | Output device for fastener tool |
| US9333637B2 (en) | 2012-01-19 | 2016-05-10 | Chevron (Hk) Limited | Multi-tool for fasteners |
| CN112584978A (en) * | 2018-09-21 | 2021-03-30 | 工机控股株式会社 | Driving machine |
| CN114102519A (en) * | 2021-12-06 | 2022-03-01 | 杭州银湖机械弹簧有限公司 | Wood system structure spring mounting equipment that experiment was verified |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263400B (en) * | 2017-07-26 | 2023-05-02 | 四川南山射钉紧固器材有限公司 | Convenient to use's special nail ware of penetrating of cable |
| CN111827703A (en) * | 2020-08-03 | 2020-10-27 | 杨俊男 | Automatic concrete nailing machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299967A (en) * | 1964-07-16 | 1967-01-24 | Lowry Dev Corp | Power impact hammer |
| US3366302A (en) * | 1965-08-19 | 1968-01-30 | Edward F. Blicharski | Power hammer |
| DE2654521A1 (en) * | 1976-12-01 | 1978-06-08 | Mey Kg Maschf Mafell | NAIL DEVICE |
| US4664306A (en) * | 1986-04-22 | 1987-05-12 | Kwik Ticket, Inc. | Tag attacher |
| JPH0295582A (en) * | 1988-09-30 | 1990-04-06 | Hitachi Koki Co Ltd | Impact drill |
| JPH03129212U (en) * | 1990-04-10 | 1991-12-25 | ||
| GB9126338D0 (en) * | 1991-12-11 | 1992-02-12 | Glynwed Eng | Fastener applicator |
| CN2333503Y (en) * | 1998-02-27 | 1999-08-18 | 泸州市龙马潭区建设机械厂 | Mechanical automatic nailing tool |
| CN2592343Y (en) * | 2003-01-13 | 2003-12-17 | 林云飞 | Electromagnetic nailing gun |
| TWI243738B (en) * | 2004-08-27 | 2005-11-21 | Yih Kai Entpr Co Ltd | Improved structure for a stapling gun |
| CN100360283C (en) * | 2005-01-07 | 2008-01-09 | 力肯实业股份有限公司 | Stapler buffer |
-
2007
- 2007-09-29 CN CN2007101817819A patent/CN101367206B/en active Active
-
2008
- 2008-06-17 CN CN2008101248263A patent/CN101407049B/en active Active
- 2008-06-17 CN CN201110061971.3A patent/CN102133748B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065222A (en) * | 2010-11-19 | 2011-05-18 | 航天科工深圳（集团）有限公司 | Device and method for controlling space shooting shutter in unmanned helicopter |
| CN103213107A (en) * | 2012-01-19 | 2013-07-24 | 南京德朔实业有限公司 | Output device for fastener tool |
| CN103213107B (en) * | 2012-01-19 | 2015-12-02 | 南京德朔实业有限公司 | Output device for fastener tool |
| US9333637B2 (en) | 2012-01-19 | 2016-05-10 | Chevron (Hk) Limited | Multi-tool for fasteners |
| CN112584978A (en) * | 2018-09-21 | 2021-03-30 | 工机控股株式会社 | Driving machine |
| CN114102519A (en) * | 2021-12-06 | 2022-03-01 | 杭州银湖机械弹簧有限公司 | Wood system structure spring mounting equipment that experiment was verified |
| CN114102519B (en) * | 2021-12-06 | 2023-10-27 | 杭州银湖机械弹簧有限公司 | Experimental verification's wood structure spring erection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101407049A (en) | 2009-04-15 |
| CN102133748B (en) | 2013-10-02 |
| CN101407049B (en) | 2012-11-14 |
| CN102133748A (en) | 2011-07-27 |
| CN101367206B (en) | 2010-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101367206B (en) | Nailing gun | |
| CN201295909Y (en) | Nail gun | |
| CN201295910Y (en) | Nail gun | |
| CN201565934U (en) | Electric hammer | |
| JP2010535642A (en) | Nailer | |
| CN201525003U (en) | Electric hammer | |
| CN201659545U (en) | Electric hammer | |
| CN201565933U (en) | Electric hammer | |
| CN202021588U (en) | Electric hammer | |
| CN201271876Y (en) | Nailing gun | |
| CN102069481B (en) | Powered hammer | |
| JP2001500070A (en) | Electrical machine tools | |
| GB2475996A (en) | Nailer device comprising transmission shaft with through-hole | |
| CN102049762A (en) | Electric hammer | |
| CN201848826U (en) | Continuous hammering type nail gun | |
| CN201525002U (en) | Electric hammer | |
| CN102069475B (en) | Dynamic hammer | |
| CN102114624A (en) | Electric tool | |
| CN201525004U (en) | Electric hammer | |
| CN102069480B (en) | Powered hammer | |
| CN102729216B (en) | Electric hammer | |
| CN202114697U (en) | Electric nail gun | |
| CN102729215B (en) | Electric hammer | |
| CN201604133U (en) | Powered hammer | |
| CN102729214B (en) | Electric hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |