CN103600335A - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN103600335A CN103600335A CN201310586734.8A CN201310586734A CN103600335A CN 103600335 A CN103600335 A CN 103600335A CN 201310586734 A CN201310586734 A CN 201310586734A CN 103600335 A CN103600335 A CN 103600335A
- Authority
- CN
- China
- Prior art keywords
- cutter
- tool magazine
- drum
- roller
- rolling wheel
- 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
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention provides an electric tool comprising a housing, a motor, a transmission device, a tool chuck and a roller tool magazine. Each time, a tool chamber of the roller tool magazine can be adjusted to a position where a tool in the tool chamber can be moved to the tool chuck. A transmission shaft of the transmission device is arranged outside the roller tool magazine. The roller tool magazine is rotatably connected with the housing. The electric tool has the advantages that the roller tool magazine can be rotated out to allow the tool in the tool magazine to be conveniently changed with no need for demounting the housing, the roller tool magazine is rotated into the housing for direct use after changing, and the electric tool is simple and handy.
Description
Technical field
The present invention relates to a kind ofly with drum-type tool magazine, and rotatable tool storehouse is to change the hand held electric tool of cutter.
Background technology
Publication number is that the Chinese patent application of CN101563192 discloses a kind of electric tool with drum-type tool magazine.This electric tool has pistol-shaped casing, and there is the upwardly extending main shaft in gun barrel side, electric tool output shaft is in the exit of gun barrel direction, it is a cutter dop, motor is housed in casing, drum-type tool magazine and transmission device, drum-type tool magazine is cylindrical structure, the axis of the axis of drum-type tool magazine and cutter dop is parallel to main shaft, drum-type tool magazine annular on self is provided with the cutter chamber parallel with main shaft, these cutter chambers occupy according to the position of rotation of drum-type tool magazine the lap position aligning with cutter dop respectively, in this lap position, corresponding cutter can shift between cutter chamber and cutter dop, described transfer is passed through in coaxial with cutter dop, the executing agency of the operation saddle form being led in hull outside realizes.Drum-type tool magazine is formed on housing equally, and by the power transmission shaft of transmission device, run through in the central area that drum-type tool magazine is surrounded by cutter chamber, turning cylinder passes this tool magazine and is connected with cutter dop drive-type by gear, can be with cutter dop to rotate.
Adopt the electric tool of this structure if change the cutter in tool magazine, need whole tool magazine to remove, so just need to tear whole casing open, very inconvenient.
Summary of the invention
Technical problem to be solved by this invention is, overcome the defect of prior art, and a kind of cutter in tool magazine electric tool simply and easily of changing is provided.
For solving the problems of the technologies described above, the present invention proposes a kind of electric tool, it comprises casing, motor, transmission device, cutter dop and drum-type tool magazine, cutter chamber in described drum-type tool magazine can be adjusted to one at every turn and the cutter in cutter chamber can be transferred on the position of cutter dop, the power transmission shaft of described transmission device is located at the outside of drum-type tool magazine, and described drum-type tool magazine and casing are rotationally connected.
Described transmission device drives and is connected with motor, transmission device comprises gearbox, the first gear train, power transmission shaft, the second gear train, the output shaft of motor is connected with gearbox, the output shaft of gearbox is by the first gear train connection for transmission axle, described power transmission shaft is located at the outside of drum-type tool magazine, the other end of described power transmission shaft is connected with cutter dop by the second gear train, is used for being with cutter dop to rotate.When starting electric tool, the output shaft rotation of driven by motor transmission device, and rotate by power transmission shaft and the first gear train and the second gear set drive cutter dop, complete the action of electric tool.
Described drum-type tool magazine comprises the roller coaxial with drum-type tool magazine and for the rolling wheel support of roller is installed, in described casing, is provided with supporting seat, and described rolling wheel support is rotatably connected in supporting seat, and rotary motion trace place plane is perpendicular to the axis of roller.
On described supporting seat, be also provided with for rolling wheel support and rotate guiding and spacing deep-slotted chip breaker, described rolling wheel support is provided with the end that coordinates with deep-slotted chip breaker with the first spring of the first ball, when rolling wheel support rotates, the first ball slides in deep-slotted chip breaker, the two ends of described deep-slotted chip breaker are equipped with for spacing locating slot, and the degree of depth of described locating slot and width are all greater than deep-slotted chip breaker.Adopt this structure, when rolling wheel support rotates, pair roller support leads and is spacing, the first ball is when sliding into the position of locating slot at deep-slotted chip breaker two ends, because the degree of depth and the width of locating slot is all greater than deep-slotted chip breaker, and the elasticity due to the first spring, the first ball is just stuck in locating slot, rotational angle and stroke with regard to pair roller support limits like this, and during position between deep-slotted chip breaker two ends, owing to there being the guide effect of deep-slotted chip breaker, so the rotation roller support of exerting oneself a little, rolling wheel support will rotate in the scope of deep-slotted chip breaker.Deep-slotted chip breaker head and the tail two ends being carried out spacing, is when rolling wheel support is screwed out, and prevents from exerting oneself excessive and damages rolling wheel support, and when recovery roller support, play the effect of location.
In the roller of described drum-type tool magazine, be provided with cutter chamber, the center of described roller is provided with axial axis hole, described rolling wheel support is provided with axle and is connected with roller through axis hole, described axle is provided with the second spring perpendicular to axis direction, the two ends of described the second spring are all connected with the second ball, the circumference of described axis hole is provided with the draw-in groove corresponding with the quantity of cutter chamber, and described the second ball coordinates with draw-in groove.The bottom surface of described draw-in groove is cambered surface, for accommodating the second ball.On rolling wheel support during rotation roller, can make to rotate the fixing angle of equal transmission by the cooperation of draw-in groove and the second ball at every turn so that the cutter in the tool magazine of each turned position all with cutter dop over against should, there will not be deviation, make cutter discrepancy tool magazine all very smooth and easy.
Adopt after said structure, the present invention has the following advantages: the present invention is located at the power transmission shaft of transmission device in the outside of drum-type tool magazine, and not through drum-type tool magazine, but also drum-type tool magazine can be rotatably connected in casing, not needing like this to take apart casing just can screw out drum-type tool magazine, so that the cutter in replacing tool magazine, after changing, screw in again in casing and just directly can use, simple and convenient, the kind of this electric tool portability cutter is increased greatly, as various screwdriver bits, drill bit etc., greatly expanded the scope of application of this electric tool.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present invention;
Fig. 2 is the structural representation that drum-type tool magazine of the present invention screws out state;
Fig. 3 is the structural representation that drum-type tool magazine of the present invention screws in state;
Fig. 4 is the mounting structure schematic diagram of rolling wheel support of the present invention;
Mounting structure schematic diagram when Fig. 5 is rolling wheel support back-out;
Fig. 6 is the A portion enlarged diagram of Fig. 5;
Fig. 7 is that the C-C of Fig. 6 is to cross-sectional schematic;
Fig. 8 is the mounting structure schematic diagram of roller and rolling wheel support;
Fig. 9 is the cross-sectional schematic that roller and rolling wheel support are installed.
As shown in the figure: 1, casing, 2, motor, 3, transmission device, 3.1, gearbox, 3.2, the first gear train, 3.3, power transmission shaft, the 3.4, second gear train, 4, cutter dop, 5, drum-type tool magazine, 5.1, roller, 5.2, rolling wheel support, the 5.3, first ball, 5.4, the first spring, 5.5, cutter chamber, 5.6, axis hole, 5.7, axle, 5.8, the second spring, the 5.9, second ball, 5.10, draw-in groove, 6, supporting seat, 6.1, deep-slotted chip breaker, 6.2, locating slot, 7, push rod.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As one of embodiment of electric tool of the present invention, be a pistol type electric screwdriver, take this electric screwdriver below the present invention to be described in detail in detail as example:
As shown in Fig. 1-9: a kind of electric tool, it comprises casing 1, motor 2, transmission device 3, cutter dop 4 and drum-type tool magazine 5, the casing that casing 1 is handgun shape, the position of muzzle is provided with cutter dop 4 with blocking cutter and being with cutter to rotate, the screwdriver bit that described in the present embodiment, cutter is screwdriver, after cutter dop 4, be provided with drum-type tool magazine 5, cutter chamber 5.5 in described drum-type tool magazine 5 can be adjusted to one at every turn and the cutter in cutter chamber 5.5 can be transferred on the position of cutter dop 4, after drum-type tool magazine 5, be provided with push rod 7, push rod 7 and cutter dop 4 are on same axis, and can be through the cutter chamber 5.1 in drum-type tool magazine 5, cutter is pushed in cutter dop 4, and can cutter be sucked back in tool magazine 5 by being located at the magnet of push rod end, described motor 2 be located at drum-type tool magazine 5 after, the power transmission shaft 3.3 of described transmission device 3 is located at the outside of drum-type tool magazine 5, in the present embodiment, power transmission shaft 3.3 is located at the below of drum-type tool magazine 5, also can be located at the side of drum-type tool magazine 5, in a word, do not contact with drum-type tool magazine 5, described drum-type tool magazine 5 is rotationally connected with casing 1.
Described transmission device 3 drives and is connected with motor 2, transmission device 3 comprises gearbox 3.1, the first gear train 3.2, power transmission shaft 3.3, the second gear train 3.4, the output shaft of motor 2 is connected with gearbox 3.1, the output shaft of gearbox 3.1 is by the first gear train 3.2 connection for transmission axles 3.3, described power transmission shaft 3.3 is located at the outside of drum-type tool magazine 5, the other end of described power transmission shaft 3.3 is connected with cutter dop 4 by the second gear train 3.4, is used for being with cutter dop 4 to rotate.When starting electric tool, the output shaft rotation of driven by motor transmission device, and rotate by power transmission shaft and the first gear train and the second gear set drive cutter dop, complete the action of electric tool.
Certainly; the gearbox 3.1 of described transmission device 3; also can be located at the place ahead of drum-type tool magazine 5; the output shaft of motor 2 is just directly connected with power transmission shaft 3.3 by the first gear train 3.2 like this, and the other end of power transmission shaft 3.3 connects gearbox 3.1 again, and gearbox 3.1 is again by the second gear train 3.4 band cutter dops 4; in a word; no matter how tumbler 3 arranges, as long as its power transmission shaft 3.3 is located at the outside of drum-type tool magazine 5, all within protection domain of the present invention.
Described drum-type tool magazine 5 comprises the roller 5.1 coaxial with drum-type tool magazine and for the rolling wheel support 5.2 of roller 5.1 is installed, in described casing 1, be provided with supporting seat 6, described rolling wheel support 6.2 is rotatably connected on supporting seat 6, and rotary motion trace place plane is perpendicular to the axis of roller 5.1.
Shown in Fig. 4-7, on described supporting seat 6, be also provided with for rolling wheel support 5.2 and rotate guiding and spacing deep-slotted chip breaker 6.1, described rolling wheel support 5.2 is provided with the end that coordinates with deep-slotted chip breaker 6.1 with the first spring 5.4 of the first ball 5.3, when rolling wheel support 5.2 rotates, the first ball 5.3 is in the interior slip of deep-slotted chip breaker 6.1, the two ends of described deep-slotted chip breaker 6.1 are equipped with for spacing locating slot 6.2, and the degree of depth of described locating slot 6.2 and width are all greater than deep-slotted chip breaker 6.1.Adopt this structure, when rolling wheel support 5.2 rotates, pair roller support 5.2 leads and is spacing, the first ball is when sliding into the position of locating slot at deep-slotted chip breaker two ends, because the degree of depth and the width of locating slot is all greater than deep-slotted chip breaker, and the elasticity due to the first spring, the first ball is just stuck in locating slot, rotational angle with regard to pair roller support limits like this, and during position between deep-slotted chip breaker two ends, owing to there being the guide effect of deep-slotted chip breaker, so the rotation roller support of exerting oneself a little, rolling wheel support will rotate in the scope of deep-slotted chip breaker.Deep-slotted chip breaker head and the tail two ends being carried out spacing, is when rolling wheel support is screwed out, and prevents from exerting oneself excessive and damages rolling wheel support, and when recovery roller support, play the effect of location.
Shown in Fig. 8, Fig. 9, in the roller 5.1 of described drum-type tool magazine 5, be provided with cutter chamber 5.5, described roller 5.1 center is provided with axial axis hole 5.6, described rolling wheel support 5.2 is provided with axle 5.7 and is connected with roller 5.1 through axis hole 5.6,5.7 the second springs 5.8 that are provided with perpendicular to axis direction on described axle, the two ends of described the second spring 5.8 are all connected with the second ball 5.9, the circumference of described axis hole 5.7 is provided with the draw-in groove corresponding with the quantity of cutter chamber 5.5 5.10, and described the second ball 5.9 coordinates with draw-in groove 5.10.The bottom surface of described draw-in groove 5.10 is cambered surface, for accommodating the second ball.On rolling wheel support during rotation roller, can make to rotate the fixing angle of equal transmission by the cooperation of draw-in groove and the second ball at every turn so that the cutter in the tool magazine of each turned position all with cutter dop over against should, there will not be deviation, make cutter discrepancy tool magazine all very smooth and easy.
Although embodiment is electric screwdriver; described cutter is the screwdriver bit of electric screwdriver; but this electric tool can be according to the different types of electric tool of the different formation of the kind of the cutter in tool magazine; as electric wrench, electric drill etc.; if adopt structure as described herein, also within protection domain of the present invention.
Claims (6)
1. an electric tool, it comprises casing (1), motor (2), transmission device (3), cutter dop (4) and drum-type tool magazine (5), cutter chamber (5.5) in described drum-type tool magazine (5) can be adjusted to one at every turn and the cutter in cutter chamber (5.5) can be transferred on the position of cutter dop (4), it is characterized in that: the power transmission shaft (3.3) of described transmission device (3) is located at the outside of drum-type tool magazine (5), described drum-type tool magazine (5) is rotationally connected with casing (1).
2. electric tool according to claim 1, it is characterized in that: described transmission device (3) drives and is connected with motor (2), transmission device (3) comprises gearbox (3.1), the first gear train (3.2), power transmission shaft (3.3), the second gear train (3.4), the output shaft of motor (2) is connected with gearbox (3.1), the output shaft of gearbox (3.1) is by the first gear train (3.2) connection for transmission axle (3.3), the other end of described power transmission shaft (3.3) is connected with cutter dop (4) by the second gear train (3.4), be used for being with cutter dop (4) to rotate.
3. electric tool according to claim 1, it is characterized in that: described drum-type tool magazine (5) comprises the roller coaxial with drum-type tool magazine (5.1) and for the rolling wheel support (5.2) of roller (5.1) is installed, in described casing (1), be provided with supporting seat (6), it is upper that described rolling wheel support (6.2) is rotatably connected on supporting seat (6), and the plane at rotary motion trace place is perpendicular to the axis of roller (5.1).
4. electric tool according to claim 3, it is characterized in that: on described supporting seat (6), be also provided with for rolling wheel support (5.2) and rotate guiding and spacing deep-slotted chip breaker (6.1), described rolling wheel support (5.2) is provided with the end that coordinates with deep-slotted chip breaker (6.1) with first spring (5.4) of the first ball (5.3), when rolling wheel support (5.2) rotates, the first ball (5.3) slides in deep-slotted chip breaker (6.1), the two ends of described deep-slotted chip breaker (6.1) are equipped with for spacing locating slot (6.2), (6.20 the degree of depth and width are all greater than deep-slotted chip breaker (6.1) to described locating slot.
5. electric tool according to claim 3, it is characterized in that: in the roller (5.1) of described drum-type tool magazine (5), be provided with cutter chamber (5.5), the center of described roller (5.1) is provided with axial axis hole (5.6), described rolling wheel support (5.2) is provided with axle (5.7) and is connected with roller (5.1) through axis hole (5.6), on described axle, (5.7) are provided with the second spring (5.8) perpendicular to axis direction, the two ends of described the second spring (5.8) are all connected with the second ball (5.9), the circumference of described axis hole (5.7) is provided with the draw-in groove (5.10) corresponding with the quantity of cutter chamber (5.5), described the second ball (5.9) coordinates with draw-in groove (5.10).
6. according to the electric tool described in claim 1-5 any one, it is characterized in that: described electric tool is electric screwdriver, the screwdriver bit that described cutter is electric screwdriver.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586734.8A CN103600335B (en) | 2013-11-20 | 2013-11-20 | Electric tool |
| PCT/CN2014/070693 WO2014146506A1 (en) | 2013-11-20 | 2014-01-16 | Electric power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586734.8A CN103600335B (en) | 2013-11-20 | 2013-11-20 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103600335A true CN103600335A (en) | 2014-02-26 |
| CN103600335B CN103600335B (en) | 2016-09-28 |
Family
ID=50118631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310586734.8A Expired - Fee Related CN103600335B (en) | 2013-11-20 | 2013-11-20 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103600335B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436566A (en) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | Electric drill |
| CN107053063A (en) * | 2017-05-17 | 2017-08-18 | 句容新禾五金电器有限公司 | Full-automatic electric bottle opener |
| CN107837110A (en) * | 2017-12-25 | 2018-03-27 | 芜湖锐进医疗设备有限公司 | A kind of multi-functional medical electric drill storing unit |
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
| CN108771558A (en) * | 2018-06-19 | 2018-11-09 | 潍坊护理职业学院 | It is a kind of to automate the bone drilling device for changing bone-taking drill |
| CN110560740A (en) * | 2019-09-17 | 2019-12-13 | 长江师范学院 | Drill bit switching device of multifunctional electric drill |
| CN110744335A (en) * | 2019-10-15 | 2020-02-04 | 迈赫机器人自动化股份有限公司 | Honeycomb type tool changing device, mechanical arm and tool changing method |
| CN112676611A (en) * | 2021-01-13 | 2021-04-20 | 成都辰恒驰科技有限公司 | Electric drill easy to maintain and having drill bit fast switching function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346453A (en) * | 1993-08-12 | 1994-09-13 | Rivera Bottzeck Otto | Multiple bit power drill |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
| CN102909707A (en) * | 2011-08-06 | 2013-02-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN102922494A (en) * | 2012-10-09 | 2013-02-13 | 杭州巨星科技股份有限公司 | Electric tool capable of rapidly replacing part |
| CN203266590U (en) * | 2011-11-29 | 2013-11-06 | 罗伯特·博世有限公司 | Handheld machine tool with rotary drum type tool replacement box |
| CN203527417U (en) * | 2013-11-20 | 2014-04-09 | 宁波市海联电器有限公司 | Electric tool |
-
2013
- 2013-11-20 CN CN201310586734.8A patent/CN103600335B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346453A (en) * | 1993-08-12 | 1994-09-13 | Rivera Bottzeck Otto | Multiple bit power drill |
| CN101563192A (en) * | 2006-12-18 | 2009-10-21 | 罗伯特·博世有限公司 | Motor-driven machine tool |
| CN102909707A (en) * | 2011-08-06 | 2013-02-06 | 苏州宝时得电动工具有限公司 | Power tool |
| CN203266590U (en) * | 2011-11-29 | 2013-11-06 | 罗伯特·博世有限公司 | Handheld machine tool with rotary drum type tool replacement box |
| CN102922494A (en) * | 2012-10-09 | 2013-02-13 | 杭州巨星科技股份有限公司 | Electric tool capable of rapidly replacing part |
| CN203527417U (en) * | 2013-11-20 | 2014-04-09 | 宁波市海联电器有限公司 | Electric tool |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436566A (en) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | Electric drill |
| CN105436566B (en) * | 2015-12-26 | 2017-10-13 | 宁波鑫晟工具有限公司 | Electric drill |
| CN107053063A (en) * | 2017-05-17 | 2017-08-18 | 句容新禾五金电器有限公司 | Full-automatic electric bottle opener |
| CN107837110A (en) * | 2017-12-25 | 2018-03-27 | 芜湖锐进医疗设备有限公司 | A kind of multi-functional medical electric drill storing unit |
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
| CN108771558A (en) * | 2018-06-19 | 2018-11-09 | 潍坊护理职业学院 | It is a kind of to automate the bone drilling device for changing bone-taking drill |
| CN108771558B (en) * | 2018-06-19 | 2021-01-15 | 张文佳 | Bone drill device capable of automatically replacing bone drill bit |
| CN110560740A (en) * | 2019-09-17 | 2019-12-13 | 长江师范学院 | Drill bit switching device of multifunctional electric drill |
| CN110744335A (en) * | 2019-10-15 | 2020-02-04 | 迈赫机器人自动化股份有限公司 | Honeycomb type tool changing device, mechanical arm and tool changing method |
| CN110744335B (en) * | 2019-10-15 | 2021-08-10 | 迈赫机器人自动化股份有限公司 | Honeycomb type tool changing device, mechanical arm and tool changing method |
| CN112676611A (en) * | 2021-01-13 | 2021-04-20 | 成都辰恒驰科技有限公司 | Electric drill easy to maintain and having drill bit fast switching function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103600335B (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103600335A (en) | Electric tool | |
| CN203527417U (en) | Electric tool | |
| CN203993687U (en) | A kind of electric screwdriver of built-in screwdriver bit | |
| CN206306035U (en) | A kind of screwdriver chuck fast replacing device | |
| US10639781B2 (en) | Power tool | |
| WO2014089457A3 (en) | Downhole drilling assembly with motor powered hammer and method of using same | |
| CN102653055B (en) | Multifunctional cylindrical cutting and beveling machine | |
| CN203685850U (en) | Controllable type bearing | |
| CN203711913U (en) | Mini-type precision electric tool | |
| CN202622668U (en) | Ratchet mechanism of ratchet screwdriver | |
| CN103706837B (en) | Miniature precise electric tool | |
| CN110560740A (en) | Drill bit switching device of multifunctional electric drill | |
| CN203778801U (en) | 90-degree turning corner hole drilling device | |
| CN203738682U (en) | Handheld tool | |
| CN203409296U (en) | Multi-shaft drilling rig | |
| CN2790643Y (en) | Chuck rapid-changing mechanism | |
| CN206029712U (en) | Little adjusting device of screw angle | |
| CN104385356A (en) | Fixing device for blade | |
| CN103091100A (en) | Bevel gear coloring tool | |
| CN202571801U (en) | Multifunctional cylinder cutting and grooving machine | |
| CN203542561U (en) | Drum type tool magazine | |
| CN206416100U (en) | One kind rotation dismantling device | |
| CN104999401A (en) | Spiral and rapid ratchet wrench | |
| CN203680128U (en) | Fixture structure for machining spiral grooves | |
| CN203510148U (en) | Multifunctional percussion drill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20181120 |