CN203049213U - Knee-controlled pressure foot lifting device - Google Patents

Knee-controlled pressure foot lifting device Download PDF

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Publication number
CN203049213U
CN203049213U CN 201320023943 CN201320023943U CN203049213U CN 203049213 U CN203049213 U CN 203049213U CN 201320023943 CN201320023943 CN 201320023943 CN 201320023943 U CN201320023943 U CN 201320023943U CN 203049213 U CN203049213 U CN 203049213U
Authority
CN
China
Prior art keywords
presser foot
lever
lifting device
knee
platen
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
Application number
CN 201320023943
Other languages
Chinese (zh)
Inventor
祝书伟
杨斌
应振华
管建平
滕世岳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jack Sewing Machine Co Ltd
Original Assignee
New Jack Sewing Machine Co Ltd
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 New Jack Sewing Machine Co Ltd filed Critical New Jack Sewing Machine Co Ltd
Priority to CN 201320023943 priority Critical patent/CN203049213U/en
Application granted granted Critical
Publication of CN203049213U publication Critical patent/CN203049213U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical field of sewing machines and particularly relates to a knee-controlled pressure foot lifting device which comprises a lifting plate, a needle plate, a pressure foot and a machine head. The needle plate is installed on the lifting plate. A through groove is formed in a joint between the lifting plate and the machine head in the lifting plate. A lengthwise arranged pressure foot lifting shaft which is driven by a knee-controlled spinning helm is installed below the through groove. The pressure foot lifting shaft drives the pressure foot to ascend and descend through a transmission mechanism. The knee-controlled pressure foot lifting device is convenient to adjust, stable and reliable in action, simple and compact in structure and capable of effectively reducing manufacture cost.

Description

Knee control presser foot lifting device
Technical field
The utility model belongs to the sewing machine technique field, refers in particular to a kind of knee control presser foot lifting device.
Background technology
The automatic presser foot lifter function of present flat seam machine is to lean against on the machine to change to join the presser foot lifter electromagnet and realize.Whole presser foot lifter mechanism comprises knee control lever, knee control connecting rod, lifts and press lever, compressor arm carriage and compressor arm, wherein the motion end of knee control lever bottom is connected with knee control connecting rod, the drive end of knee control lever is by lifting pressure arm, lifting last item and be connected the driven termination position point of knee control lever with electromagnet mechanism.This working process of mechanism is: the pressure arm of lifting that drives the pin connection during electromagnetic actuation rotates, the axle head of lifting last item is clamped in the hole of lifting pressure arm, follow a rotation, lift knee control lever left end during rotation, make that doing clockwise direction rotates, apply left power to knee control connecting rod during rotation, being moved to the left to drive to lift presses lever to rotate counterclockwise, apply a power straight up for when rotating the compressor arm carriage, make the moving compressor arm of compressor arm carriage tape mobile straight up simultaneously, presser feet is lifted.
The presser foot lifter electromagnet structure volume that this structure adopts is big, and the related electric control accessory is many, and mechanism's complex process is expensive.
Summary of the invention
It is little that the purpose of this utility model provides a kind of volume, simple in structure, cheap knee control presser foot lifting device.
The purpose of this utility model is achieved in that knee control presser foot lifting device, comprise platen, needle plate, presser feet and head, needle plate is installed on the platen, wherein, offer groove on the platen of the junction of described platen and head, the below of groove is equipped with the presser foot lifter axle of vertical setting of knee control rotating loof driving, and the presser foot lifter axle drives the lifting of presser feet by transmission mechanism.
According to the knee control presser foot lifting device of the above, wherein, the concrete structure of described transmission mechanism is: the presser foot lifter axle moves up and down by the first lever actuated montant, montant is by the second lever actuated cross bar move left and right, cross bar moves up and down by the 3rd lever actuated vertical rod, and vertical rod drives shank and is fixed on the lifting of the presser feet on the shank.
According to the knee control presser foot lifting device of the above, wherein, the fulcrum of described first lever is arranged on the frame of platen downside, and the fulcrum of described second lever and the 3rd lever is arranged on the head shell.
According to the knee control presser foot lifting device of the above, wherein, described montant, second lever, cross bar, the 3rd lever, vertical rod and shank all are arranged in the housing of head.
According to last each described knee control presser foot lifting device, wherein, described presser foot lifter axle is supported on the installing plate, and installing plate is fixed on the frame of platen downside.
The utility model outstanding and beneficial technical effects compared to existing technology is:
1, the utility model volume is little, and transmission mechanism and knee control rotating loof are simple in structure, compact;
2, of the present utility model cheap, cancelled the presser foot lifter electromagnet, replace with knee control rotating loof, structural manufacturing process is simple, has saved the loaded down with trivial details technology of presser foot lifter electromagnet accessory, effectively reduces production cost;
3, the utility model can be controlled knee control rotating loof by operating personnel's knee move left and right, thereby the height that the control presser feet rises or the distance of decline are easy to adjust, move reliable and stable.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is part assembly structure schematic diagram of the present utility model;
Fig. 3 is assembly structure schematic diagram of the present utility model;
Among the figure: 10-platen, 11-head, 12-presser feet, 13-needle plate, 14-groove, 15-knee control rotating loof, 16-presser foot lifter axle, 17-installing plate, 18-first lever, 19-montant, 20-second lever, 21-cross bar, 22-the 3rd lever, 23-vertical rod, 24-shank.
The specific embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-3: knee control presser foot lifting device, comprise platen 10, needle plate 13, presser feet 12 and head 11, needle plate 13 is installed on the platen 10, wherein, offer groove 14 on the platen 10 of the junction of described platen 10 and head 11, the below of groove 14 is equipped with the presser foot lifter axle 16 of vertical setting of knee control rotating loof 15 drivings, and presser foot lifter axle 16 drives the lifting of presser feet 12 by transmission mechanism.
According to the knee control presser foot lifting device of the above, wherein, the concrete structure of described transmission mechanism is: presser foot lifter axle 16 drives montant 19 by first lever 18 and moves up and down, montant 19 drives cross bar 21 move left and right by second lever 20, cross bar 21 drives vertical rod 23 by the 3rd lever 22 and moves up and down, and vertical rod 23 drives shank 24 and is fixed on the lifting of the presser feet 12 on the shank 24.
According to the knee control presser foot lifting device of the above, wherein, the fulcrum of described first lever 18 is arranged on the frame of platen 10 downsides, and the fulcrum of described second lever 20 and the 3rd lever 22 is arranged on head 11 housings.
According to the knee control presser foot lifting device of the above, wherein, described montant 19, second lever 20, cross bar 21, the 3rd lever 22, vertical rod 23 and shank 24 all are arranged in the housing of head 11.
According to last each described knee control presser foot lifting device, wherein, described presser foot lifter axle 16 is supported on the installing plate 17, and installing plate 17 is fixed on the frame of platen 10 downsides.
The utility model is controlled knee control rotating loof 15 by operating personnel's knee move left and right, thereby the height that control presser feet 12 rises or the distance of decline, when knee moves to right, knee control rotating loof 15 is rotated counterclockwise, drive presser foot lifter axle 16, driving montant 19 by first lever 18 moves up, montant 19 drives cross bar 21 by second lever 20 and moves right, cross bar 21 drives vertical rod 23 by the 3rd lever 22 and moves up, vertical rod 23 drives shank 24 and is fixed on the lifting of the presser feet 12 on the shank 24, pulling force level transmission, and final presser feet 12 lifts, and the height that lifts is decided according to the distance that knee moves, easy to adjust, move reliable and stable, simple in structure, compactness effectively reduces production cost.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit protection domain of the present utility model according to this, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.

Claims (5)

1. knee control presser foot lifting device, comprise platen, needle plate, presser feet and head, needle plate is installed on the platen, it is characterized in that: offer groove on the platen of the junction of described platen and head, the below of groove is equipped with the presser foot lifter axle of vertical setting of knee control rotating loof driving, and the presser foot lifter axle drives the lifting of presser feet by transmission mechanism.
2. knee control presser foot lifting device according to claim 1, it is characterized in that: the concrete structure of described transmission mechanism is: the presser foot lifter axle moves up and down by the first lever actuated montant, montant is by the second lever actuated cross bar move left and right, cross bar moves up and down by the 3rd lever actuated vertical rod, and vertical rod drives shank and is fixed on the lifting of the presser feet on the shank.
3. knee control presser foot lifting device according to claim 2, it is characterized in that: the fulcrum of described first lever is arranged on the frame of platen downside, and the fulcrum of described second lever and the 3rd lever is arranged on the head shell.
4. knee control presser foot lifting device according to claim 2, it is characterized in that: described montant, second lever, cross bar, the 3rd lever, vertical rod and shank all are arranged in the housing of head.
5. according to each described knee control presser foot lifting device of claim 1-4, it is characterized in that: described presser foot lifter axle is supported on the installing plate, and installing plate is fixed on the frame of platen downside.
CN 201320023943 2013-01-16 2013-01-16 Knee-controlled pressure foot lifting device Expired - Fee Related CN203049213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320023943 CN203049213U (en) 2013-01-16 2013-01-16 Knee-controlled pressure foot lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320023943 CN203049213U (en) 2013-01-16 2013-01-16 Knee-controlled pressure foot lifting device

Publications (1)

Publication Number Publication Date
CN203049213U true CN203049213U (en) 2013-07-10

Family

ID=48732188

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320023943 Expired - Fee Related CN203049213U (en) 2013-01-16 2013-01-16 Knee-controlled pressure foot lifting device

Country Status (1)

Country Link
CN (1) CN203049213U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120550A (en) * 2014-07-16 2014-10-29 新杰克缝纫机股份有限公司 Knee control device capable of being rapidly installed
CN104195753A (en) * 2014-08-07 2014-12-10 浙江川田缝纫机有限公司 Presser foot lifting mechanism of sewing machine
CN107345341A (en) * 2017-09-12 2017-11-14 杰克缝纫机股份有限公司 A kind of lifting pressre of sewing machine structure and sewing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104120550A (en) * 2014-07-16 2014-10-29 新杰克缝纫机股份有限公司 Knee control device capable of being rapidly installed
CN104195753A (en) * 2014-08-07 2014-12-10 浙江川田缝纫机有限公司 Presser foot lifting mechanism of sewing machine
CN107345341A (en) * 2017-09-12 2017-11-14 杰克缝纫机股份有限公司 A kind of lifting pressre of sewing machine structure and sewing machine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: JACK SEWING CO., LTD.

Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15

Patentee after: JACK SEWING MACHINE CO., LTD.

Address before: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15

Patentee before: New Jack Sewing Machine Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20210116

CF01 Termination of patent right due to non-payment of annual fee