CN205676642U - A kind of cover plate detent mechanism of domestic sewing machine - Google Patents
A kind of cover plate detent mechanism of domestic sewing machine Download PDFInfo
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- CN205676642U CN205676642U CN201620620108.5U CN201620620108U CN205676642U CN 205676642 U CN205676642 U CN 205676642U CN 201620620108 U CN201620620108 U CN 201620620108U CN 205676642 U CN205676642 U CN 205676642U
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- cover plate
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- slide
- sewing machine
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- 238000009958 sewing Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 title claims abstract description 42
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- 206010040007 Sense of oppression Diseases 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses the cover plate detent mechanism of a kind of domestic sewing machine, it is mountable on the upper surface of domestic sewing machine base and corresponding with the position of eedle, including cover plate, also include by the rivet interlacement needle plate being fixed on cover plate, the slide being embedded in cover plate, be located at the hole position of cover plate in and the card-bit part that can slide laterally in the position of hole, the fixture to card-bit part in longitudinal direction with spacing fixation.The rivet bar lateral wall of the utility model rivet is uniformly laid with some straight burrs thus can strengthen the bonding strength between needle plate and cover plate, and fastening force is strong, and service life is long；Slide one end is mutually clamped by projection and spacing hole and is limited on cover plate, the other end is mutually clamped by the draw-in groove of the fixture block of card-bit part and slide and fixes on cover plate, and it in card-bit part, is provided with the spring that card-bit part can be driven to carry out resilience reseting movement, design simple and reasonable, the locking mode of slide is convenient, fast, reliable, simple to operate flexibly, practical.
Description
Technical field
The utility model relates to field of mechanical technique, particularly to the cover plate detent mechanism of a kind of domestic sewing machine.
Background technology
Domestic sewing machine is typically made up of head, base, transmission and annex four part, and its cover plate detent mechanism belongs to house
It with the accessory in sewing machine, is positioned between eedle and base and is located on the upper surface of base.Generally, cover plate detent mechanism
Including cover plate, needle plate, can open thus the slide of conveniently replaced peg or spindle, needle plate is provided with the feed dog passing through for feed dog
Groove and the pin hole suitable with eedle, feed dog passes through work feed alveolus and has transmission effect to sewing cloth, and pin hole is available for machine
Pin passes through the sewing work completing sewing cloth, if needle plate only is attached fixing, rivet by conventional rivets and cover plate
Easily come off and cause needle plate to occur to loosen, displacement or deformation thus directly affect the sewing quality of sewing machine and operating efficiency with
And service life；Otherwise see-through conveniently replaced peg or spindle is set, but set a snap fit bottom existing slide and fix
On the cover board, production mould operation is loaded down with trivial details, and snap fit is easily broken off, and service life is short, and dismounting trouble, in-convenience in use.
Therefore, a kind of reasonable in design, novel structure, bonding strength height, length in service life, practical and convenient family how are realized
It is technical problem urgently to be resolved hurrily in the industry with the cover plate detent mechanism of sewing machine.
Utility model content
Main purpose of the present utility model is to provide the cover plate detent mechanism of a kind of domestic sewing machine, it is intended to realize that one sets
The cover plate detent mechanism of the domestic sewing machine that meter is reasonable, novel structure, bonding strength are high, practical and convenient.
The utility model proposes the cover plate detent mechanism of a kind of domestic sewing machine, be mountable to the upper of domestic sewing machine base
On end face and corresponding with the position of eedle, including be provided with the cover plate of perforate, perforate is made up of upper part and end portion, lid
Plate is provided with the first groove in corresponding position, position, upper part, and cover plate is provided with the second groove, cover plate in corresponding position, end portion position
Detent mechanism also includes needle plate that is suitable with the first groove and that be fixed in the first groove by rivet interlacement and the second groove
Slide that is suitable and that be embedded in the second groove and be covered on peg or spindle；Rivet is made up of manufactured head and rivet bar, rivet
Bar lateral wall is uniformly laid with some straight burrs thus can strengthen the bonding strength between needle plate and cover plate；Second groove madial wall sets
Having some spacing holes, slide sidewall is in corresponding position, spacing hole position and is provided with some suitable with spacing hole and can inlay card along limit
Enter in spacing hole so that the spacing projection being embedded in the second groove of slide；Another sidewall of slide is provided with a card at limit
Groove, cover plate is provided with a hole position in corresponding position, draw-in groove position, cover plate detent mechanism also include one be embedded at hole position in and can be in hole position
The card-bit part inside sliding laterally, card-bit part in corresponding position, draw-in groove position is provided with and can snap in draw-in groove so that slide is fixed on
Fixture block in two grooves, is provided with one and card-bit part can be driven to carry out the spring of resilience reseting movement, when external force acts in card-bit part
Card-bit part simultaneously makes card-bit part suffer oppression towards fixture block when moving away from the direction of slide away from draw-in groove and spring, after external force disappears
Spring be released and promote card-bit part to slide towards draw-in groove direction and make fixture block snap in draw-in groove in so that slide is fixed
In the second groove；Cover plate detent mechanism also includes that one presses solidly in the card-bit part back side and has spacing fixation to card-bit part
Fixture.
Preferably, to be connected by screw mode fixing on the cover board and be covered on the back side of card-bit part for fixture.
Preferably, fixture block lateral wall is that inclined-plane is arranged.
Preferably, card-bit part upper surface is provided with some anti-slip veins.
Preferably, slide is made up of transparent plastic material.
Preferably, needle plate is made of stainless steel.
Preferably, needle plate is provided with the pin hole of work feed alveolus adaptation corresponding with eedle position.
Preferably, cover plate is provided with some installing holes, by screw pass through installing hole and with domestic sewing machine whorl of base
Occlusion is so that cover plate detent mechanism is fixedly arranged on domestic sewing machine base.
The cover plate detent mechanism of the utility model domestic sewing machine, needle plate is fixedly arranged on cover plate by rivet, and rivet is by riveting
Ailhead and rivet bar composition, rivet bar lateral wall is uniformly laid with some straight burrs, and straight burr effectively strengthens between needle plate and cover plate
Bonding strength, connect robust, and rivet will not occur loosen or come off, it is to avoid needle plate be moved or loosen and make to give
Occurring percussion or eedle to touch needle plate and rupture between dog with work feed alveolus, needle plate of the present utility model is made of stainless steel,
Self-strength is good, and high with the bonding strength of cover plate, it is ensured that the sewing quality of domestic sewing machine and operating efficiency, and extends
Service life, reasonable in design, novel structure；And slide is mutually clamped by projection and spacing hole and spacing is embedded at the
In two grooves, when covering, down press slide simultaneously, fixture block by slide squeezing action and towards away from the direction of slide
Mobile, in moving process, spring is squeezed, and when slide slips over bevel edge along limit, acts on the extruding force on fixture block
Disappear, carry out resilience reseting movement with rear spring and drive card-bit part to move so that fixture block snaps in draw-in groove towards the direction of slide
In so make slide peace be fixed on cover plate, when slide is dismantled, external force acts on card-bit part makes card-bit part towards away from thoroughly
The direction of bright move and make fixture block depart from draw-in groove thus can easily take out slide, the simple in construction of slide, reasonable in design,
Production process is simple, and production efficiency is high, and production cost is low, and the locking mode of slide is convenient, fast, reliable, operation letter
Single flexible, thread-changing is convenient, practical.Therefore, the utility model achieves a kind of reasonable in design, novel structure, bonding strength
The cover plate detent mechanism of high, practical and convenient domestic sewing machine.
Brief description
Fig. 1 is that the stereochemical structure of an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model is decomposed
Schematic diagram；
Fig. 2 is making of the slide in an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model
Use view；
Fig. 3 is the cross-section structure signal of an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model
Figure；
Fig. 4 be an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model look up structural representation
Figure；
Fig. 5 is the plan structure signal of an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model
Figure.
The realization of the utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
It should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not used to limit this
Utility model.
Referring to figs. 1 through Fig. 5, an embodiment of the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model is proposed,
Being mountable on the upper surface of domestic sewing machine base and corresponding with the position of eedle, cover plate detent mechanism belongs to
Accessory in domestic sewing machine.
Cover plate detent mechanism includes the cover plate 100 being provided with perforate, and perforate is made up of upper part 101 and end portion 103,
Upper part 101 connects and one-body molded with end portion 103.Cover plate 100 is provided with first in corresponding position, position, upper part 101
Groove 102, cover plate 100 is provided with the second groove 104 in corresponding position, end portion 103 position, and cover plate detent mechanism also includes and the
One groove 102 is suitable and the needle plate 200 that is connected and fixed in the first groove 102 by rivet 300 and the second groove 104 phase
It is adapted to and is embedded at the slide 400 that the second groove 104 is interior and is covered on peg or spindle.
In the present embodiment, needle plate 200 is made of stainless steel, sturdy and durable and be unlikely to deform, and effectively strengthens cover plate locking machine
The self-strength of structure, and slide 400 is made up of transparent plastic material, not only conveniently observes the behaviour in service of peg or spindle but also economical
Environmental protection, simple in construction, reasonable in design, improve overall use reliability and security.Needle plate 200 is provided with feed dog simultaneously
The pin hole 202 of groove 201 adaptation corresponding with eedle position, the quantity of the work feed alveolus 201 of the present embodiment be set to three and in
Strip, wherein middle work feed alveolus 201 is blocked as two parts by pin hole 202.
Rivet 300 is made up of manufactured head and rivet bar, and rivet bar lateral wall is uniformly laid with some straight burrs 301 thus can add
Strong bonding strength between needle plate 200 and cover plate 100.Second groove 104 madial wall is provided with some spacing holes 105, slide 400
Sidewall is in corresponding position, spacing hole 105 position and is provided with some suitable with spacing hole 105 and cocker embeds in spacing hole 105 along limit
So that the spacing projection 401 being embedded in the second groove 104 of slide 400.Another sidewall of slide 400 is provided with one at limit
Draw-in groove 402, cover plate 100 is provided with a hole position 106 in corresponding position, draw-in groove 402 position, and cover plate detent mechanism also includes that one is embedded at hole
In position 106 and the card-bit part 500 that can slide laterally in hole position 106, card-bit part 500 is provided with in corresponding position, draw-in groove 402 position can
Snapping in draw-in groove 402 interior so that slide 400 is fixed on the fixture block 501 in the second groove 104, being provided with one in card-bit part 500 can
Card-bit part 500 is driven to carry out the spring 600 of resilience reseting movement, when external force acts on card-bit part 500 and makes card-bit part 500 towards far
When moving from the direction of slide 400, fixture block 501 suffers oppression away from draw-in groove 402 and spring 600, when external force disappearance rear spring 600
So that slide in being released and promoting card-bit part 500 to slide towards draw-in groove 402 direction and make fixture block 501 snap in draw-in groove 402
400 are fastened in the second groove 104.Cover plate detent mechanism also includes that one presses solidly on card-bit part 500 back side and to screens
Part 500 has the fixture 700 of spacing fixation, and fixture 700 is connected by screw mode and is fixed on cover plate 100 and covers
Being located on the back side of card-bit part 500, the card-bit part 500 of the present embodiment is embedded in hole position 106, and fixture 700 is solid by screw
It is scheduled on the lower surface of cover plate 100, and the fixture 700 being fixed on cover plate 100 lower surface is positioned at the back side of card-bit part 500,
Fixture 700 has spacing fixation in the vertical to card-bit part 500.
Needle plate 200 is fixed on cover plate 100 by rivet 300, and rivet 300 is made up of manufactured head and rivet bar and is set to
Integrated formed structure, the utility model rivet 300 is changed traditional structural style, is uniformly laid with some at rivet bar lateral wall
Straight burr 301, straight burr 301 effectively strengthens the bonding strength between needle plate 200 and cover plate 100, connects robust, and rivet
300 will not occur to loosen or come off and cause needle plate 200 to be moved or loosen so that cause feed dog and work feed alveolus 201 it
Between occur percussion or eedle to touch needle plate 200 and rupture situation occur.Needle plate 200 of the present utility model is by the stainless steel of metal
Becoming, self-strength is good, even if the junction between rivet 300 and needle plate 200 is a bigger position of stress, rivet 300 also will not
Any damage is caused to needle plate 200.Needle plate 200 of the present utility model is provided with rivet 300 and the cover plate of straight burr 301 by lateral wall
100 are attached fixing, and after riveting, fastening force is strong, and bonding strength is high, it is ensured that the sewing quality of domestic sewing machine and work
Efficiency, and extend service life, reasonable in design, novel structure, external form is brief attractive in appearance.
Additionally for solving that the structure that existing slide 400 exists is single, production process is loaded down with trivial details, locking troublesome poeration, make
By problems such as the life-span are short, propose novel structure of the present utility model, production process is simple, locking is convenient, fast, reliable, operation
Simple and flexible, practical and convenient cover plate detent mechanism.Second groove 104 madial wall of cover plate 100 is provided with some spacing holes 105,
Slide 400 is provided with some suitable with spacing hole 105 in corresponding position, spacing hole 105 position and cocker embeds in spacing hole 105
Projection 401, when in the embedded spacing hole 105 of projection 401 card, slide 400 is spacing is embedded in the second groove 104.Slide
400 another sidewalls are provided with a draw-in groove 402 at limit, and draw-in groove 402 is corresponding with projection 401 position, in the hole position 106 of cover plate 100
Being provided with a card-bit part 500 that can slide laterally in hole position 106, card-bit part 500 is provided with in can snapping in draw-in groove 402 so that thoroughly
Being fixed on the fixture block 501 in the second groove 104 for bright 400, fixture block 501 lateral wall is that inclined-plane 502 is arranged, and in card-bit part 500
Being provided with one can drive card-bit part 500 to carry out the spring 600 of resilience reseting movement.When wanting locking slide 400, first by projection
401 snap in spacing hole 105 in make slide 400 be limited on the second groove 104, then press down on slide 400, slide
The inclined-plane 502 that along edge of 400 moves down and has contention effect to inclined-plane 502 so that card-bit part 500 is towards away from slide 400
Direction move, now spring 600 suffers oppression, and when slide 400 slips over inclined-plane 502 outer ledge along limit, acts on fixture block
Extruding force on 501 disappears, and carries out resilience reseting movement with rear spring 600 and drives card-bit part 500 towards the direction of slide 400
Mobile so that fixture block 501 snap in draw-in groove 402 in so that make slide 400 peace be fixed on cover plate 100；When thread-changing to be carried out or inspection
When repairing, external force acts on card-bit part 500 and makes card-bit part 500 move towards the direction away from slide 400 and make fixture block 501 depart from card
Groove 402 thus can easily from cover plate 100 take out slide 400, card-bit part 500 upper surface is provided with some anti-slip veins 503, design
Rationally, practical, anti-slip veins 503 may help to promote card-bit part 500 to move towards the direction away from slide 400 more easily.
The utility model slide 400 changes the coupler construction of traditional easy fracture, simple in construction, and reasonable in design, production process is simple,
Production efficiency is high, and production cost is low, and the locking mode of slide 400 is convenient, fast, reliable, simple to operate, uses spirit
Living, thread-changing is convenient, practical.
Cover plate 100 is provided with some installing holes 107, by screw pass through installing hole 107 and with domestic sewing machine base spiral shell
Line is engaged so that cover plate detent mechanism is fixedly arranged on domestic sewing machine base, and is located between eedle and domestic sewing machine base
Place.
In sum, the cover plate detent mechanism of a kind of domestic sewing machine of the present utility model, it is achieved that reasonable in design, structure
Novelty, bonding strength height, length in service life, simple and quick, use flexibility and reliability, the beneficial effect such as practical and convenient.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure transformation utilizing the utility model specification and accompanying drawing content to be made, or it is directly or indirectly used in other phases
The technical field closed, all in like manner includes in scope of patent protection of the present utility model.
Claims (8)
1. a cover plate detent mechanism for domestic sewing machine, be mountable on the upper surface of domestic sewing machine base and with eedle
Position is corresponding, it is characterised in that include the cover plate being provided with perforate, and described perforate is made up of upper part and end portion, institute
Stating cover plate and being provided with the first groove in corresponding position, position, described upper part, described cover plate sets in corresponding position, described end portion position
Having the second groove, described cover plate detent mechanism is also included suitable with described first groove and is fixed on by rivet interlacement described
Needle plate in first groove suitable with described second groove and be embedded in described second groove and be covered on peg or spindle saturating
Bright；Described rivet is made up of manufactured head and rivet bar, and described rivet bar lateral wall is uniformly laid with some straight burrs thus can add
Bonding strength between strong described needle plate and described cover plate；Described second groove madial wall is provided with some spacing holes, described transparent
Piece sidewall is in corresponding position, described spacing hole position and is provided with some suitable with described spacing hole and cocker embeds described limit along limit
So that the spacing projection being embedded in described second groove of described slide in the hole of position；Another sidewall of described slide is along at limit
Being provided with a draw-in groove, described cover plate is provided with a hole position in corresponding position, described draw-in groove position, and described cover plate detent mechanism also includes that one is embedding
In being located at described hole position and the card-bit part that can slide laterally in the position of described hole, described card-bit part is in corresponding position, described draw-in groove position
It is provided with and can snap in described draw-in groove so that described slide is fixed on the fixture block in described second groove, set in described card-bit part
Have one described card-bit part can be driven to carry out the spring of resilience reseting movement, when external force acts on described card-bit part and makes described screens
When part moves towards the direction away from described slide, described fixture block suffers oppression away from described draw-in groove and described spring, when external force disappears
Rear described spring is released and promotes described card-bit part slide towards described draw-in groove direction and make described fixture block snap in described draw-in groove
It is interior so that described slide is fastened in described second groove；Described cover plate detent mechanism also includes that one presses solidly in described
The card-bit part back side the fixture to described card-bit part with spacing fixation.
2. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 1, it is characterised in that described fixture leads to
Cross screw connecting mode to be fixed on described cover plate and be covered on the back side of described card-bit part.
3. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 1 and 2, it is characterised in that described fixture block
Lateral wall is that inclined-plane is arranged.
4. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 3, it is characterised in that on described card-bit part
End face is provided with some anti-slip veins.
5. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 4, it is characterised in that described slide by
Transparent plastic material is made.
6. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 5, it is characterised in that described needle plate is not by
Rust steel is made.
7. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 6, it is characterised in that set on described needle plate
There is the pin hole of work feed alveolus adaptation corresponding with described eedle position.
8. the cover plate detent mechanism of a kind of domestic sewing machine according to claim 7, it is characterised in that set on described cover plate
Have some installing holes, pass through described installing hole by screw and be engaged with described domestic sewing machine whorl of base so that described lid
Plate detent mechanism is fixedly arranged on described domestic sewing machine base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620620108.5U CN205676642U (en) | 2016-06-22 | 2016-06-22 | A kind of cover plate detent mechanism of domestic sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620620108.5U CN205676642U (en) | 2016-06-22 | 2016-06-22 | A kind of cover plate detent mechanism of domestic sewing machine |
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| Publication Number | Publication Date |
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| CN205676642U true CN205676642U (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620620108.5U Active CN205676642U (en) | 2016-06-22 | 2016-06-22 | A kind of cover plate detent mechanism of domestic sewing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967468A (en) * | 2019-03-20 | 2019-07-05 | 南阳市中心医院 | A kind of anti-hematocele flushing type operation device of neurosurgery |
| CN110499594A (en) * | 2018-05-18 | 2019-11-26 | 蛇目缝纫机工业株式会社 | Needle plate mechanism for assembling-disassembling and the sewing machine for having the needle plate mechanism for assembling-disassembling |
| CN110499593A (en) * | 2018-05-18 | 2019-11-26 | 蛇目缝纫机工业株式会社 | Needle plate mechanism for assembling-disassembling and the sewing machine for having the needle plate mechanism for assembling-disassembling |
-
2016
- 2016-06-22 CN CN201620620108.5U patent/CN205676642U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499594A (en) * | 2018-05-18 | 2019-11-26 | 蛇目缝纫机工业株式会社 | Needle plate mechanism for assembling-disassembling and the sewing machine for having the needle plate mechanism for assembling-disassembling |
| CN110499593A (en) * | 2018-05-18 | 2019-11-26 | 蛇目缝纫机工业株式会社 | Needle plate mechanism for assembling-disassembling and the sewing machine for having the needle plate mechanism for assembling-disassembling |
| CN110499594B (en) * | 2018-05-18 | 2021-05-18 | 蛇目缝纫机工业株式会社 | Needle plate detaching mechanism and sewing machine with same |
| CN110499593B (en) * | 2018-05-18 | 2021-05-25 | 蛇目缝纫机工业株式会社 | Needle plate detaching mechanism and sewing machine with same |
| TWI731315B (en) * | 2018-05-18 | 2021-06-21 | 日商車樂美縫衣機工業股份有限公司 | Needle plate attachment and detachment mechanism and sewing machine including same |
| CN109967468A (en) * | 2019-03-20 | 2019-07-05 | 南阳市中心医院 | A kind of anti-hematocele flushing type operation device of neurosurgery |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170410 Address after: 528400 Dongsheng Town, Guangdong City, Zhongshan Tong Sheng village economic cooperatives, Patentee after: Zhongshan golden crown Electrical Technology Co., Ltd. Address before: 438000 Xishui City, Huanggang Province Cai Town, mountain village, the back of the village of the group of seven Co-patentee before: Zhang Xiaohu Patentee before: Ma Guanjun |