CN2539757Y - Presser feet lifting device for sewing machine - Google Patents
Presser feet lifting device for sewing machine Download PDFInfo
- Publication number
- CN2539757Y CN2539757Y CN 02215690 CN02215690U CN2539757Y CN 2539757 Y CN2539757 Y CN 2539757Y CN 02215690 CN02215690 CN 02215690 CN 02215690 U CN02215690 U CN 02215690U CN 2539757 Y CN2539757 Y CN 2539757Y
- Authority
- CN
- China
- Prior art keywords
- thread
- compressor arm
- presser feet
- pressing rod
- loosing
- 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.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a presser feet lifting device for sewing machine, comprising a pressing rod assembly, a presser feet wrench, a knee-controlling lift bending dowel pin, a thread clamp, a roller presser feet assembly, and a shell. The pressing rod assembly comprises a pressing rod, and the pressing rod is equipped with a press spring, a guide rack of pressing rod and a lifting block of pressing rod in sequence from top to bottom. The knee-controlling lift bending dowel pin is arranged at the upper part of one side of the lifting block of the pressing rod, and a presser feet wrench is arranged at the lower part of one side of the lifting block of the pressing rod. The thread clamp comprises a thread clamping screw; the thread clamping screw is equipped in sequence with a thread-loosing nail, a thread clamp seat, a thread-clamping plate, a thread loosing plate, a swinging spring, a thread-clamping spring and a thread-clamping nut, and is corresponding to the pressing rod assembly. The end of the pressing rod is equipped with the roller presser feet assembly. The utility model is characterized in that: the presser feet lifting device also comprises a thread-loosing rod; one end of the thread-loosing rod is of circular arc, and the other end of the thread-loosing rod is extended with a dummy club top; one end of the dummy club top is connected with the end of the thread-loosing nail; the circular arc end of the thread loosing rod is supported at the side with a slope surface arranged on the lifting block of pressing rod. The utility model can effectively lift the height of presser feet to achieve constant thread-loosing amount, and is convenient to be used.
Description
Technical field
The utility model relates to a kind of sewing-machine foot lowering or hoisting gear that is located in the Sewing machines.
Technical background
See also Fig. 1, Fig. 2, a kind of existing sewing machine voltage rise falling unit comprises that compressor arm assembly 1, knee control promote curved pin 2, presser feet spanner 3, tension disk 4, roller press assembly 5, casing 6, loose ends hook assembly 7; Described compressor arm assembly 1 comprises compressor arm 11, is provided with stage clip 12, compressor arm saddle 13, compressor arm lift block 14 on compressor arm 11 successively from top to bottom; The top of compressor arm lift block 14 1 sides is provided with the knee control and promotes curved pin 2, and the below is provided with presser feet spanner 3; Described tension disk 4 comprises clamp screw 41, it passes casing 6, with the 1 corresponding setting of compressor arm assembly, on the screw rod of clamp screw 41, set gradually tension releasing pin 42, tension disk seat 43, clamp 44, thread tension releasing disc 45, wig-wag spring 46, clamp spring 47, tension regulating thumb nut 48; Compressor arm 11 ends are provided with roller press assembly 5; Please cooperate referring to Fig. 3, Fig. 4, described loose ends hook assembly 7, comprise that loose ends colludes 71, loose ends colludes screw 72, loose ends spring 73, loose ends colludes 71 and is hook-type, one end is a bill 711, the bill bottom is provided with clamp spring base 712, clamp spring base bottom is provided with loose ends and colludes screw hole 713, loose ends colludes 71 other ends and is located at compressor arm lift block 14 rear sides, and with its flexible connection, loose ends colludes screw 72 and passes through loose ends and collude 71 and be connected with compressor arm lift block 14 that compressor arm 11 is provided with, and loose ends spring 73 is located between clamp spring base 712 and the casing 6, offsets with loose ends hook 71.
When the presser feet spanner makes progress cocked or promotes curved pin and upwards mention the compressor arm lift block with the knee control, the compressor arm lift block is mentioned loose ends simultaneously and is colluded, loose ends colludes and colludes screw with loose ends is the center rotation, tension releasing pin is pushed down in colluding that loose ends colludes when point turns right, behind the loose ends screw top jack-up thread tension releasing disc two clamps are unclamped, loosen clamping suture.When presser feet was carried highly more, the loose ends amount was big more.After putting down the presser feet spanner, loose ends colludes the elastic returning original position by the loose ends spring.
When the compressor arm lifting rises to certain position (is after roll wheel assembly is thus lifted to 9～10mm), because loose ends colludes and bumps casing, the structure point and the adjustable distance between the tension releasing pin of loose ends structure are limited, do not had the leeway of continuing to improve the roller press component height, the user can not be put into sewing when the thick material of seam easily; The loose ends amount that former mechanism is arranged again is that the rising with the roller press assembly increases, and is not steady state value.Design unreasonable.
Summary of the invention
The purpose of this utility model will solve the low and indefinite shortcoming of loose ends amount of hoisting depth of existing sewing machine presser lifting device, and a kind of hoisting depth height, loose ends amount sewing-machine foot lowering or hoisting gear constant, easy to use are provided.
The technical solution of the utility model is achieved in that a kind of Sewing machines voltage rise falling unit, comprises that compressor arm assembly, presser feet spanner, knee control promote curved pin, tension disk, roller press assembly, casing; Described compressor arm assembly comprises compressor arm, is provided with stage clip, compressor arm saddle, compressor arm lift block on compressor arm successively from top to bottom; The top of compressor arm lift block one side is provided with the knee control and promotes curved pin, and the below is provided with the presser feet spanner; Described tension disk comprises the clamp screw, and it passes casing, and corresponding setting with the compressor arm assembly sets gradually tension releasing pin, tension disk seat, clamp, thread tension releasing disc, wig-wag spring, clamp spring, tension regulating thumb nut on the clamp screw; The compressor arm end is provided with the roller press assembly; Be characterized in that comprise a thread tension releasing lever and improved compressor arm lift block, described thread tension releasing lever one end is circular arc, the other end extends the boss top, pushes up an end at boss and is connected with the tension releasing pin end, and it is circular arc one end and is against compressor arm lift block side; The middle part, a side that described compressor arm lift block and thread tension releasing lever offset is provided with slope.
The utility model is owing to adopt above technical scheme, cancelled that loose ends colludes in the existing presser lifting device, loose ends colludes screw, three parts of loose ends spring, increase thread tension releasing lever, the middle part, a side that former compressor arm lift block is corresponding with thread tension releasing lever is provided with slope, when the knee control promotes the compressor arm lift block, the lifting Gao Keda 13mm of roller press assembly satisfies user's needs fully.Thread tension releasing lever plane from the compressor arm lift block in the pressure foot lifting process slides into another plane along the slope, thread tension releasing lever promotes tension releasing pin and reaches the loose ends purpose, because the amount of movement of thread tension releasing lever is a constant number, so also reached the constant purpose of loose ends amount.
Description of drawings
Concrete structure of the present utility model is further provided by following examples and accompanying drawing thereof.
Fig. 1 is the front view of existing sewing-machine foot lowering or hoisting gear.
Fig. 2 is the left view of existing sewing-machine foot lowering or hoisting gear.
Fig. 3 is the loose ends hook front view of existing sewing-machine foot lowering or hoisting gear.
Fig. 4 is the loose ends hook left view of existing sewing-machine foot lowering or hoisting gear.
The front view of Fig. 5 the utility model sewing-machine foot lowering or hoisting gear.
The left view of Fig. 6 the utility model sewing-machine foot lowering or hoisting gear.
The compressor arm lift block structural representation of Fig. 7 the utility model sewing-machine foot lowering or hoisting gear.
The compressor arm lift block of Fig. 8 the utility model sewing-machine foot lowering or hoisting gear and thread tension releasing lever combining structure schematic diagram.
The specific embodiment
See also Fig. 5, Fig. 6, a kind of sewing-machine foot lowering or hoisting gear comprises that compressor arm assembly 1, knee control promote curved pin 2, presser feet spanner 3, tension disk 4, roller press assembly 5, casing 6, thread tension releasing lever 7; Described compressor arm assembly 1 comprises compressor arm 11, is provided with stage clip 12, compressor arm saddle 13, compressor arm lift block 14 on compressor arm 11 successively from top to bottom; The top of compressor arm lift block 14 1 sides is provided with the knee control and promotes curved pin 2, and the below is provided with presser feet spanner 3; Described tension disk 4 comprises clamp screw 41, and it passes casing 6, with the 1 corresponding setting of compressor arm assembly, sets gradually tension releasing pin 42, tension disk seat 43, clamp 44, thread tension releasing disc 45, wig-wag spring 46, clamp spring 47, tension regulating thumb nut 48 on the clamp screw; Compressor arm 11 ends are provided with roller press assembly 5; Please cooperate referring to Fig. 7, Fig. 8, one thread tension releasing lever 7 and improved compressor arm lift block 14, these thread tension releasing lever 7 one ends are circular arc 71, and the other end extends boss top 72, push up 72 1 ends at boss and be connected with tension releasing pin 42 ends, it is circular arc one end 71 and is against compressor arm lift block 14 sides; Compressor arm lift block 14 is provided with slope 141 with the middle part, a side that thread tension releasing lever 7 offsets.
When using, the presser feet spanner makes progress cocked or when promoting curved pin and upwards mention the compressor arm lift block with the knee control, the middle part, a side that compressor arm lift block and thread tension releasing lever offset is provided with slope, thread tension releasing lever plane from the compressor arm lift block in the pressure foot lifting process slides into another plane along the slope, thread tension releasing lever promotes tension releasing pin and reaches the loose ends purpose, because the amount of movement of thread tension releasing lever is a constant number, so also guaranteed the constant number of loose ends amount, the lifting Gao Keda 13mm of roller press assembly can satisfy user's needs fully.
The utility model structural design is new reasonable, can effectively promote the presser feet height, and it is constant to reach the loose ends amount, easy to use.
Claims (1)
1, a kind of sewing-machine foot lowering or hoisting gear comprises that compressor arm assembly, presser feet spanner, knee control promote curved pin, tension disk, roller press assembly, casing; Described compressor arm assembly comprises compressor arm, is provided with stage clip, compressor arm saddle, compressor arm lift block on compressor arm successively from top to bottom; The top of compressor arm lift block one side is provided with the knee control and promotes curved pin, and the below is provided with the presser feet spanner; Described tension disk comprises the clamp screw, and it passes casing, and corresponding setting with the compressor arm assembly sets gradually tension releasing pin, tension disk seat, clamp, thread tension releasing disc, wig-wag spring, clamp spring, tension regulating thumb nut on the clamp screw; The compressor arm end is provided with the roller press assembly; It is characterized in that: comprise a thread tension releasing lever and improved compressor arm lift block, described thread tension releasing lever one end is circular arc, and the other end extends the boss top, pushes up an end at boss and is connected with the tension releasing pin end, and it is circular arc one end and is against compressor arm lift block side; The middle part, a side that described compressor arm lift block and thread tension releasing lever offset is provided with slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215690 CN2539757Y (en) | 2002-02-08 | 2002-02-08 | Presser feet lifting device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215690 CN2539757Y (en) | 2002-02-08 | 2002-02-08 | Presser feet lifting device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539757Y true CN2539757Y (en) | 2003-03-12 |
Family
ID=33694785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02215690 Expired - Fee Related CN2539757Y (en) | 2002-02-08 | 2002-02-08 | Presser feet lifting device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539757Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837442B (en) * | 2005-03-24 | 2011-07-13 | 兄弟工业株式会社 | Embroidery presser for embroidery machine |
| CN105386247A (en) * | 2015-12-24 | 2016-03-09 | 杰克缝纫机股份有限公司 | Safety detecting device for presser foot arm of sewing machine and sewing machine |
-
2002
- 2002-02-08 CN CN 02215690 patent/CN2539757Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837442B (en) * | 2005-03-24 | 2011-07-13 | 兄弟工业株式会社 | Embroidery presser for embroidery machine |
| CN105386247A (en) * | 2015-12-24 | 2016-03-09 | 杰克缝纫机股份有限公司 | Safety detecting device for presser foot arm of sewing machine and sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030312 Termination date: 20110208 |