CN107598215A - A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction - Google Patents

A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction Download PDF

Info

Publication number
CN107598215A
CN107598215A CN201711024409.7A CN201711024409A CN107598215A CN 107598215 A CN107598215 A CN 107598215A CN 201711024409 A CN201711024409 A CN 201711024409A CN 107598215 A CN107598215 A CN 107598215A
Authority
CN
China
Prior art keywords
plate
fixed
frame
drill bit
oil cylinder
Prior art date
Application number
CN201711024409.7A
Other languages
Chinese (zh)
Inventor
叶侃
Original Assignee
佛山信君安智能家居有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 佛山信君安智能家居有限公司 filed Critical 佛山信君安智能家居有限公司
Priority to CN201711024409.7A priority Critical patent/CN107598215A/en
Publication of CN107598215A publication Critical patent/CN107598215A/en

Links

Abstract

The invention discloses a kind of transversely movable cylindrical sleeves multiposition of drill bit to fix borehole drill construction,Including frame,The top surface both sides of the top plate of the frame are fixed with side support plate,Upper plate is fixed on the top surface of two side support plates,Clamping oil cylinder is fixed on the lateral wall of side support plate,The push rod of clamping oil cylinder is through side support plate and is fixed with grip block,Cylindrical sleeve to be processed is clamped between two grip blocks,Lower backup plate is provided with above the top plate of frame between two grip blocks,The top surface of lower backup plate has arc groove,The bottom surface of cylindrical sleeve to be processed is pressed against on the bottom surface of arc groove,The bottom surface of the top plate of frame is fixedly arranged in the middle of bottom compressed oil cylinder,The push rod of bottom compressed oil cylinder passes through the top plate of frame and is fixed on the bottom surface of lower backup plate,The top of the relative wall of two grip blocks is fixed with extension board,The top surface of extension board is fixed with compressed oil cylinder,It is simple in construction,Grip firmly,It is convenient,Processing effect is good.

Description

A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Technical field:

The present invention relates to hardware part manufacturing equipment technical field, more specifically to a kind of drill bit are transversely movable Cylindrical sleeves multiposition fixes borehole drill construction.

Background technology:

When existing metal cylinder sleeve carries out side wall Drilling operation, generally by three grab chuck gripped or Manually it is fixed by fixed block, then, carries out side wall Drilling operation, but three grab that chuck clamping is complicated, and cost is high, Manually fixed by fixed block, its installing/dismounting trouble, efficiency is low.

The content of the invention:

The purpose of the present invention and provides a kind of drill bit transversely movable cylindrical sleeves aiming at the deficiency of prior art Multiposition fixes borehole drill construction, and it is simple in construction, grips firmly, and convenient, processing effect is good.

The technology solution of the present invention is as follows:

A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, including frame, the top of the frame The top surface both sides of plate are fixed with side support plate, and upper plate is fixed on the top surface of two side support plates, and clamping oil cylinder is fixed on side On the lateral wall of supporting plate, the push rod of oil cylinder is clamped through side support plate and is fixed with grip block, cylindrical sleeve to be processed is clamped in Between two grip blocks, lower backup plate is provided with above the top plate of the frame between two grip blocks, the top surface of lower backup plate has arc Groove, the bottom surface of cylindrical sleeve to be processed are pressed against on the bottom surface of arc groove, and the bottom surface of the top plate of frame is fixedly arranged in the middle of bottom Compressed oil cylinder, the push rod of bottom compressed oil cylinder through frame top plate and be fixed on the bottom surface of lower backup plate, two grip blocks The top of relative wall is fixed with extension board, and the top surface of extension board is fixed with compressed oil cylinder, and the push rod of upper compressed oil cylinder passes through Extension board is simultaneously fixed with arc block, and upper arc block is pressed against on the both sides top surface of cylindrical sleeve to be processed, in the top surface of upper plate Portion is fixed with upper support frame, and the both sides of upper support frame are provided with vertical screw rod, and the top of vertical screw rod is hinged on the top of upper support frame On plate, the bottom of vertical screw rod is hinged on upper plate, and the both sides top surface of the top plate of upper support frame is fixed with motor, driving The output shaft of motor is splined shaft, and for splined shaft sleeve in the splined hole that the top of vertical screw rod has, lifter plate is screwed onto two In individual vertical screw rod, the top surface both sides of lifter plate are fixed with supporting plate, and the both ends of transverse screw are hinged on two supporting plates, wherein Horizontal drive motor is fixed with the lateral wall of one supporting plate, the output shaft of horizontal drive motor is splined shaft, and splined shaft is inserted It is enclosed in the splined hole that one end of transverse screw has, processing movable block is screwed onto in transverse screw, processes the bottom surface of movable block It is fixed with lower link, in the horizontal groove that lower link sleeve has at the middle part of lifter plate, the top of the bottom plate of lower link Face is fixed with processing motor, processes the output shaft of motor through the bottom plate of lower link and is fixed with drill bit, and drill bit is against upper top The central through hole that the middle part of plate has, middle top surface of the central through hole against cylindrical sleeve to be processed.

The relative wall of described two grip blocks forms multiple positioning convex points, and positioning convex point is nested in cylindrical sleeve to be processed The positioning shrinkage pool that has of both ends of the surface in.

The bottom surface stationary annular self-lubricating block of the processing movable block, the bottom surface of annular self-lubricating block is pressed against lifter plate On top surface.

The middle part bottom surface of the top plate of the upper support frame is fixed with flexibly positioned piece, and upper flexibly positioned piece is moved against processing The top surface of motion block.

The bottom surface of the arc groove is fixed with the first arc wearing layer, and the bottom surface of cylindrical sleeve to be processed is pressed against the first arc On shape wearing layer.

The bottom surface of the upper arc block is fixed with the second arc wearing layer, and the second arc wearing layer is pressed against cylinder to be processed On the both sides top surface of set.

The both sides bottom surface of the lower backup plate, which is fixed with, is vertically directed bar, is vertically directed top surface of the bar sleeve in the top plate of frame In the lower guide sleeve being fixed with.

The beneficial effects of the present invention are:

It is simple in construction, grips firmly, and convenient, processing effect is good.

Brief description of the drawings:

Fig. 1 is the structural representation of the present invention.

Embodiment:

Embodiment:As shown in Figure 1, a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, including Frame 10, the top surface both sides of the top plate of the frame 10 are fixed with side support plate 11, and upper plate 12 is fixed on two side support plates On 11 top surface, clamping oil cylinder 13 is fixed on the lateral wall of side support plate 11, and the push rod of clamping oil cylinder 13 passes through side support plate 11 and grip block 14 is fixed with, cylindrical sleeve 100 to be processed is clamped between two grip blocks 14, the machine between two grip blocks 14 Lower backup plate 20 is provided with above the top plate of frame 10, the top surface of lower backup plate 20 has arc groove 21, the bottom surface of cylindrical sleeve 100 to be processed It is pressed against on the bottom surface of arc groove 21, the bottom surface of the top plate of frame 10 is fixedly arranged in the middle of bottom compressed oil cylinder 22, and bottom compresses The push rod of oil cylinder 22 passes through the top plate of frame 10 and is fixed on the bottom surface of lower backup plate 20, the relative wall's of two grip blocks 14 Top is fixed with extension board 141, and the top surface of extension board 141 is fixed with compressed oil cylinder 142, and the push rod of upper compressed oil cylinder 142 is worn To cross extension board 141 and be fixed with arc block 143, upper arc block 143 is pressed against on the both sides top surface of cylindrical sleeve 100 to be processed, The top surface of upper plate 12 is fixedly arranged in the middle of upper support frame 15, and the both sides of upper support frame 15 are provided with vertical screw rod 16, vertical screw rod 16 Top be hinged on the top plate of upper support frame 15, the bottom of vertical screw rod 16 is hinged on upper plate 12, upper support frame 15 The both sides top surface of top plate is fixed with motor 151, and the output shaft of motor 151 is splined shaft, and splined shaft sleeve is vertical In the splined hole that the top of screw rod 16 has, lifter plate 17 is screwed onto in two vertical screw rods 16, the top surface both sides of lifter plate 17 Supporting plate 171 is fixed with, the both ends of transverse screw 172 are hinged on two supporting plates 171, the outside of one of supporting plate 171 Horizontal drive motor 173 is fixed with wall, the output shaft of horizontal drive motor 173 is splined shaft, and splined shaft sleeve is in horizontal spiral shell In the splined hole that one end of bar 172 has, processing movable block 174 is screwed onto in transverse screw 172, processes the bottom of movable block 174 Face is fixed with lower link 175, in the horizontal groove 176 that the lower sleeve of link 175 has at the middle part of lifter plate 17, lower connection The top surface of the bottom plate of frame 175 is fixed with processing motor 177, and the output shaft of processing motor 177 passes through the bottom plate of lower link 175 simultaneously It is fixed with drill bit 178, the central through hole 121 that the middle part of drill bit 178 against upper plate 12 has, central through hole 121 is against to be added The middle top surface of work cylindrical sleeve 100.

Further, the relative wall of described two grip blocks 14 forms multiple positioning convex points 142, positioning convex point In the positioning shrinkage pool that 142 both ends of the surface for being nested in cylindrical sleeve 100 to be processed have.

Further, the bottom surface stationary annular self-lubricating block 179 of the processing movable block 174, annular self-lubricating block 179 Bottom surface be pressed against on the top surface of lifter plate 17.

Further, the middle part bottom surface of the top plate of the upper support frame 15 is fixed with flexibly positioned piece 1, and upper elasticity is fixed Top surface of the position block 1 against processing movable block 174.

Further, the bottom surface of the arc groove 21 is fixed with the first arc wearing layer 23, cylindrical sleeve 100 to be processed Bottom surface be pressed against on the first arc wearing layer 23.

Further, the bottom surface of the upper arc block 143 is fixed with the second arc wearing layer 24, the second arc wearing layer 24 are pressed against on the both sides top surface of cylindrical sleeve 100 to be processed.

Further, the both sides bottom surface of the lower backup plate 20, which is fixed with, is vertically directed bar 25, is vertically directed the sleeve of bar 25 In the lower guide sleeve 26 that the top surface of the top plate of frame 10 is fixed with.

The present embodiment when in use, is promoted by the push rod for clamping oil cylinder 13, cylindrical sleeve 100 to be processed is clamped in into two Between grip block 14, in the positioning shrinkage pool that both ends of the surface that positioning convex point 142 is nested in cylindrical sleeve 100 to be processed have, then, on The push rod of compressed oil cylinder 142 promotes, and the push rod of bottom compressed oil cylinder 22 promotes, so that cylindrical sleeve to be processed 100 is clamped in Between lower backup plate 20 and upper arc block 143, and run by motor 151, processing motor 171 is run, so that drill bit 172 rotate and cylindrical sleeve 100 to be processed are drilled, and its effect is good, efficiency high.

Wherein, run by horizontal drive motor 173, it is possible to achieve the transverse shifting of processing movable block 174, adjust drill bit The movement of 172 lateral attitude, meet no processing request.

Claims (7)

1. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, including frame (10), it is characterised in that: The top surface both sides of the top plate of the frame (10) are fixed with side support plate (11), and upper plate (12) is fixed on two side support plates (11) on top surface, clamping oil cylinder (13) is fixed on the lateral wall of side support plate (11), and the push rod of clamping oil cylinder (13) passes through Side support plate (11) is simultaneously fixed with grip block (14), and cylindrical sleeve (100) to be processed is clamped between two grip blocks (14), two Lower backup plate (20) is provided with above the top plate of frame (10) between grip block (14), the top surface of lower backup plate (20) has arc groove (21), the bottom surface of cylindrical sleeve (100) to be processed is pressed against on the bottom surface of arc groove (21), in the bottom surface of the top plate of frame (10) Portion is fixed with bottom compressed oil cylinder (22), and the push rod of bottom compressed oil cylinder (22), which passes through the top plate of frame (10) and is fixed on down, to be leaned on On the bottom surface of plate (20), the top of the relative wall of two grip blocks (14) is fixed with extension board (141), extension board (141) Top surface is fixed with compressed oil cylinder (142), and the push rod of upper compressed oil cylinder (142) extends through plate (141) and is fixed with arc Block (143), upper arc block (143) are pressed against on the both sides top surface of cylindrical sleeve to be processed (100), in the middle part of the top surface of upper plate (12) Upper support frame (15) is fixed with, the both sides of upper support frame (15) are provided with vertical screw rod (16), and the top of vertical screw rod (16) is hinged On the top plate of upper support frame (15), the bottom of vertical screw rod (16) is hinged on upper plate (12), the top of upper support frame (15) The both sides top surface of plate is fixed with motor (151), and the output shaft of motor (151) is splined shaft, and splined shaft sleeve is perpendicular In the splined hole that the top of straight screw rod (16) has, lifter plate (17) is screwed onto in two vertical screw rods (16), lifter plate (17) Top surface both sides be fixed with supporting plate (171), the both ends of transverse screw (172) are hinged on two supporting plates (171), one of them Horizontal drive motor (173) is fixed with the lateral wall of supporting plate (171), the output shaft of horizontal drive motor (173) is spline Axle, for splined shaft sleeve in the splined hole that one end of transverse screw (172) has, processing movable block (174) is screwed onto horizontal spiral shell In bar (172), the bottom surface of processing movable block (174) is fixed with lower link (175), and lower link (175) sleeve is in lifter plate (17) in the horizontal groove (176) that middle part has, the top surface of the bottom plate of lower link (175) is fixed with processing motor (177), The output shaft of processing motor (177) passes through the bottom plate of lower link (175) and is fixed with drill bit (178), and drill bit (178) is opposite upper The central through hole (121) that the middle part of top plate (12) has, central through hole (121) push up against the middle part of cylindrical sleeve to be processed (100) Face.
2. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The relative wall of described two grip blocks (14) forms multiple positioning convex points (142), and positioning convex point (142) is nested in In the positioning shrinkage pool that the both ends of the surface of cylindrical sleeve (100) to be processed have.
3. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The bottom surface stationary annular self-lubricating block (179) of the processing movable block (174), the bottom surface pressure of annular self-lubricating block (179) On the top surface for leaning against lifter plate (17).
4. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The middle part bottom surface of the top plate of the upper support frame (15) is fixed with flexibly positioned piece (1), and upper flexibly positioned piece (1) is right The top surface of processing movable block (174).
5. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The bottom surface of the arc groove (21) is fixed with the first arc wearing layer (23), the bottom surface pressure of cylindrical sleeve (100) to be processed Lean against on the first arc wearing layer (23).
6. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The bottom surface of the upper arc block (143) is fixed with the second arc wearing layer (24), and the second arc wearing layer (24) is pressed against On the both sides top surface of cylindrical sleeve (100) to be processed.
7. a kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction, its feature according to claim 1 It is:The both sides bottom surface of the lower backup plate (20), which is fixed with, is vertically directed bar (25), is vertically directed bar (25) sleeve in frame (10) in the lower guide sleeve (26) that the top surface of top plate is fixed with.
CN201711024409.7A 2017-10-27 2017-10-27 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction CN107598215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711024409.7A CN107598215A (en) 2017-10-27 2017-10-27 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711024409.7A CN107598215A (en) 2017-10-27 2017-10-27 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Publications (1)

Publication Number Publication Date
CN107598215A true CN107598215A (en) 2018-01-19

Family

ID=61080037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711024409.7A CN107598215A (en) 2017-10-27 2017-10-27 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Country Status (1)

Country Link
CN (1) CN107598215A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108214044A (en) * 2018-03-06 2018-06-29 佛山瑞普达光电科技有限公司 A kind of automobile end grooving axis body processes clamping device
CN108214043A (en) * 2018-03-06 2018-06-29 佛山瑞普达光电科技有限公司 A kind of automobile end grooving axis body liftable processes clamping device
CN108465838A (en) * 2018-05-28 2018-08-31 佛山市达普光机电科技有限公司 A kind of transversely movable high-precision pipe compression borehole drill construction of drill bit
CN108465837A (en) * 2018-05-28 2018-08-31 佛山市达普光机电科技有限公司 A kind of single-ended compression borehole drill construction of high-precision thin-wall circular tube
CN108480775A (en) * 2018-01-26 2018-09-04 东莞市天合机电开发有限公司 A kind of fine-tuning bending plate clamping perforation burring mechanism
CN108526535A (en) * 2018-05-28 2018-09-14 佛山市达普光机电科技有限公司 A kind of high-precision pipe compression borehole drill construction
CN108568918A (en) * 2018-04-24 2018-09-25 江苏奥赛斯现代农业科技有限公司 A kind of clamping device of quartzite slate
CN108582511A (en) * 2018-04-24 2018-09-28 江苏奥赛斯现代农业科技有限公司 A kind of perforating device for quartz material
CN110315110A (en) * 2019-08-02 2019-10-11 台州市杰龙风机厂 A kind of angle steel automatic punching mechanism of the blower with waste material splicing
CN110394505A (en) * 2019-07-18 2019-11-01 潜山市志杰刷业有限公司 A kind of Self-tapping apparatus of industrial brush production
CN110883383A (en) * 2019-12-09 2020-03-17 郭和俊 Board cutting device for industrial machining
CN111230177A (en) * 2020-02-18 2020-06-05 米伦医疗科技(苏州)有限公司 Lifting rod punching moving mechanism of walking aid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09174542A (en) * 1995-12-28 1997-07-08 Ikeda:Kk Hole working tool
CN105750937A (en) * 2016-04-22 2016-07-13 任新庄 Multi-angle drilling device for pipe
CN105856320A (en) * 2016-05-25 2016-08-17 佛山市联智新创科技有限公司 Plastic board clamping and punching mechanism
CN205704451U (en) * 2016-05-25 2016-11-23 佛山市联智新创科技有限公司 A kind of plastic plate clamping punch mechanism
CN206415655U (en) * 2016-12-23 2017-08-18 福建省霞浦县众源机械有限公司 A kind of angle bar automatic drilling device of turning
CN207577467U (en) * 2017-10-27 2018-07-06 徐州神威基业机械科技有限公司 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09174542A (en) * 1995-12-28 1997-07-08 Ikeda:Kk Hole working tool
CN105750937A (en) * 2016-04-22 2016-07-13 任新庄 Multi-angle drilling device for pipe
CN105856320A (en) * 2016-05-25 2016-08-17 佛山市联智新创科技有限公司 Plastic board clamping and punching mechanism
CN205704451U (en) * 2016-05-25 2016-11-23 佛山市联智新创科技有限公司 A kind of plastic plate clamping punch mechanism
CN206415655U (en) * 2016-12-23 2017-08-18 福建省霞浦县众源机械有限公司 A kind of angle bar automatic drilling device of turning
CN207577467U (en) * 2017-10-27 2018-07-06 徐州神威基业机械科技有限公司 A kind of transversely movable cylindrical sleeves multiposition of drill bit fixes borehole drill construction

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108480775A (en) * 2018-01-26 2018-09-04 东莞市天合机电开发有限公司 A kind of fine-tuning bending plate clamping perforation burring mechanism
CN108214044A (en) * 2018-03-06 2018-06-29 佛山瑞普达光电科技有限公司 A kind of automobile end grooving axis body processes clamping device
CN108214043A (en) * 2018-03-06 2018-06-29 佛山瑞普达光电科技有限公司 A kind of automobile end grooving axis body liftable processes clamping device
CN108568918A (en) * 2018-04-24 2018-09-25 江苏奥赛斯现代农业科技有限公司 A kind of clamping device of quartzite slate
CN108582511A (en) * 2018-04-24 2018-09-28 江苏奥赛斯现代农业科技有限公司 A kind of perforating device for quartz material
CN108465838A (en) * 2018-05-28 2018-08-31 佛山市达普光机电科技有限公司 A kind of transversely movable high-precision pipe compression borehole drill construction of drill bit
CN108465837A (en) * 2018-05-28 2018-08-31 佛山市达普光机电科技有限公司 A kind of single-ended compression borehole drill construction of high-precision thin-wall circular tube
CN108526535A (en) * 2018-05-28 2018-09-14 佛山市达普光机电科技有限公司 A kind of high-precision pipe compression borehole drill construction
CN110394505A (en) * 2019-07-18 2019-11-01 潜山市志杰刷业有限公司 A kind of Self-tapping apparatus of industrial brush production
CN110315110A (en) * 2019-08-02 2019-10-11 台州市杰龙风机厂 A kind of angle steel automatic punching mechanism of the blower with waste material splicing
CN110883383A (en) * 2019-12-09 2020-03-17 郭和俊 Board cutting device for industrial machining
CN111230177A (en) * 2020-02-18 2020-06-05 米伦医疗科技(苏州)有限公司 Lifting rod punching moving mechanism of walking aid

Similar Documents

Publication Publication Date Title
CN105817670B (en) A kind of handware processing drilling equipment
CN205702545U (en) A kind of handware processing drilling equipment
US9144894B2 (en) Drill pipe breakout machine
CN105856309B (en) A kind of plastic cylinder body three-point positioning mechanism
CN204700606U (en) Drilling machine clamping device
CN201470930U (en) Front axle leaf spring hole processing equipment
CN204221454U (en) A kind of square shaft bearing fixture
CN107414129B (en) Machining hole group processing unit (plant)
CN201841290U (en) Reverse-drilling type multi-pore drilling machine
CN101824961B (en) Multifunctional motive power head of full hydraulic drilling machine
CN107695383A (en) A kind of bending handware borehole drill construction with splicing cell body
CN103286598B (en) A kind of boring grab
CN205599955U (en) A rig for hardware processing
CN104400499A (en) Novel drill jig for processing radial hole of bar
CN104493237B (en) Multi-hole drilling machine for flange of butterfly valve
CN104827074A (en) Apparatus for boring hole in steel tube
CN204673010U (en) A kind of steel tube drilling device
CN204160179U (en) Arc-shaped workpiece grinding drill aperture apparatus
CN103212734A (en) Manual multi-purpose drilling device
CN205587709U (en) Drilling machine of hydraulic prop column cap
CN201950249U (en) Balance shaft housing drilling fixture
CN104440321A (en) Multi-workpiece drilling equipment
CN205904482U (en) Do not have and be interrupted water meter casing drilling equipment
CN207533990U (en) A kind of section bar production drilling equipment
CN105834471A (en) Drilling machine for hardware machining

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20180119