CN210314750U - Upper cloth feeding amount adjusting mechanism of sewing machine and sewing machine - Google Patents
Upper cloth feeding amount adjusting mechanism of sewing machine and sewing machine Download PDFInfo
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- CN210314750U CN210314750U CN201921057886.8U CN201921057886U CN210314750U CN 210314750 U CN210314750 U CN 210314750U CN 201921057886 U CN201921057886 U CN 201921057886U CN 210314750 U CN210314750 U CN 210314750U
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- cloth feeding
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Abstract
The utility model provides a last work feed volume adjustment mechanism of sewing machine, it includes: one end of the adjusting rod is fixedly connected with the adjusting shaft, a reset spring for resetting is arranged at the connecting position of the adjusting rod and the adjusting shaft, and the rotation of the adjusting shaft is used for adjusting the swing angle of the front cloth feeding shaft and the rear cloth feeding shaft; the adjusting component is arranged outside the sewing machine shell and comprises an adjusting plate with a sliding groove and an adjusting block, the adjusting plate is fixed on the sewing machine shell, the adjusting block is arranged in the sliding groove in a sliding mode and can be locked and positioned, the adjusting block is connected with the other end of the adjusting rod, and when the adjusting block slides in the sliding groove, the adjusting rod is driven to rotate through the adjusting rod, so that the swing amplitude of the front cloth feeding shaft and the rear cloth feeding shaft is changed. The utility model discloses simple structure easily installs the operation.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to a sewing machine's last work feed volume adjustment mechanism and this sewing machine.
Background
In the sewing machine, the upper feed dog forms a feed track similar to an ellipse by the combined action of the swing in the front-back direction and the feed lifting dog in the up-down direction. Generally, the amplitude of the front-back swing of the upper feed dog is set by a front-back amount adjusting mechanism positioned in the inner cavity of the machine shell and above the main shaft. The front-back amount adjusting mechanism is provided with an adjusting rod outside a sewing machine frame (namely a sewing machine shell), and the front-back amount of the upper feed dog is adjusted through the operation of the adjusting rod.
For example, chinese patent 201320878828.8 discloses an upper feed amount adjusting mechanism for an overlock sewing machine, which includes a fork-shaped lever, a front-rear amount front-rear feed shaft, a front-rear amount adjusting lever, and the like, wherein the front-rear amount adjusting lever is provided outside a sewing machine frame, the fork-shaped lever, the front-rear amount front-rear feed shaft, and the like are provided inside the sewing machine frame, a bifurcated branch portion is formed at one end of the fork-shaped lever, and a small slider is slidably fitted into the branch portion. The small slider is connected to the large slider and the connecting link via a pin. When the front and rear quantity adjusting lever is operated to rotate in the front and rear direction along the front and rear quantity adjusting scale plate, the front and rear quantity front and rear cloth feeding shaft rotates around the shaft, and the position of the large slider in the adjusting groove of the adjusting crank is changed through the fork-shaped lever, the small slider and the pin, so that the distance between the swinging shaft and the large slider is changed, and the swinging quantity of the crank connected with the large slider through the connecting link is changed. The amount of swing of the crank becomes large, that is, the amount of swing of the front and rear shafts becomes large, and the amount of swing of the upper feed dog becomes large. The front and back quantity adjusting mechanism of the patent is complex, occupies a large space, and is not beneficial to defects of poor installation operability and the like, and the motor, the electric control and the like are produced as an integrated machine with the machine body.
Therefore, there is a need for an upper feed amount adjusting mechanism of a sewing machine which is simple in structure and easy to operate.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide an upper feed amount adjustment mechanism and sewing machine of sewing machine for solve the problem that upper feed amount adjustment mechanism structure is complicated, the inside space of sewing machine is big among the prior art.
In order to achieve the above and other related objects, the present invention provides an upper feed amount adjusting mechanism of a sewing machine, comprising an upper feed dog assembly, a front and rear amount adjusting mechanism, and a front and rear feed shafts connected to a main shaft in a transmission manner, wherein the upper feed dog assembly is connected to the front and rear feed shafts, the main shaft drives the front and rear feed shafts to rotate to realize front and rear movement of the upper feed dog in the upper feed dog assembly, and an adjusting shaft in the front and rear amount adjusting mechanism is connected to the front and rear feed shafts to adjust a swing angle of the front and rear feed shafts; the front-rear amount adjusting mechanism further includes: one end of the adjusting rod is fixedly connected with the adjusting shaft in the sewing machine shell, and a reset spring for resetting is arranged at the connecting position of the adjusting rod and the adjusting shaft;
the adjusting part is arranged in the outside of the sewing machine shell, the adjusting part comprises an adjusting plate with a sliding groove and an adjusting block, the adjusting plate is fixed on the sewing machine shell, the adjusting block is slidably arranged in the sliding groove and can be locked and positioned, the adjusting block is connected with the other end of the adjusting rod, the adjusting block passes through the adjusting rod when sliding in the sliding groove and drives the adjusting shaft to rotate, and then the swing amplitude of the front and back cloth feeding shafts is changed.
Preferably, a clamping groove is formed in the end portion of the adjusting shaft, and one end of the adjusting rod is arranged in the clamping groove and fixed with the adjusting shaft through a fixing piece.
Preferably, the reset spring is a torsion spring, one end of the torsion spring is connected with the inner wall of the sewing machine shell, and the other end of the torsion spring is connected with the adjusting rod.
Preferably, the adjusting assembly further comprises a fine adjustment mechanism for adjusting the position of the adjusting rod in the sliding groove.
Preferably, the adjusting plate is vertically fixed, an adjusting groove is formed in the adjusting plate, the fine adjustment mechanism is a feed screw nut mechanism, two ends of a feed screw in the feed screw nut mechanism are rotatably supported on the adjusting plate, a space for the adjusting rod to pass through is formed between the feed screw and the adjusting plate, a nut in the feed screw nut mechanism is provided with a sliding portion located in the adjusting groove, and the feed screw is rotated to drive the nut to slide along the adjusting groove so that the nut acts on the adjusting rod.
Preferably, the adjusting plate is provided with scales distributed along the groove edge of the sliding groove.
Preferably, the adjusting block is locked in the sliding groove through a screw, a long hole is formed in the other end of the adjusting rod, the adjusting block is connected with an adjusting crank, and a shaft portion arranged in the long hole is arranged on the adjusting crank.
Preferably, the adjusting plate is fixed to a front side surface of the sewing machine housing or fixed above the sewing machine housing.
Preferably, a dustproof sealing gasket is arranged between the adjusting plate and the sewing machine shell.
The utility model also provides a sewing machine, sewing machine have as above sewing machine's last work feed volume adjustment mechanism.
As described above, the utility model discloses a last work feed volume adjustment mechanism of sewing machine has following beneficial effect: the adjusting mechanism is simple in structure and easy to install and operate, only the adjusting rod and the adjusting shaft are required to be fixedly connected in the sewing machine shell during installation, the reset spring is arranged at the connection position of the adjusting rod and the adjusting shaft, the adjusting assembly is fixed outside the sewing machine shell, and the reset spring and the adjusting assembly hardly occupy the right space of the sewing machine shell, so that the shell can be additionally provided with the electric control mechanism; when the cloth feeding device is adjusted, the adjusting shaft can be driven to rotate only by releasing the adjusting block and stirring the adjusting rod, the angle of the adjusting arm fork on the adjusting shaft relative to the horizontal plane is changed, the swing amplitude of the front and rear cloth feeding shafts when the main shaft rotates is changed through the transmission relation, and the front and rear cloth feeding amount of the cloth feeding teeth is changed.
Drawings
Fig. 1 is a schematic view of an upper feed amount adjusting mechanism according to the present invention.
Fig. 2 is a schematic view of a first embodiment of the adjusting assembly of the present invention.
Fig. 3 is a front view of a first embodiment of an adjustment assembly of the present invention.
Fig. 4 is a schematic view of a second embodiment of the adjusting assembly of the present invention.
Fig. 5 is a partial enlarged view of a second embodiment of the adjusting assembly of the present invention.
Description of the element reference numerals
1 fixing element
2 torsion spring
3 adjusting rod
4 adjusting plate
5 limiting screw
6 limiting nut
7 rotating disc
8 nut
9 screw mandrel
10 adjusting block
11 screw
12 dustproof sealing gasket
13 Sewing machine casing
14 adjusting shaft
15 adjusting crank
16 adjusting nut
17 screw
41 sliding groove
42 adjusting groove
100 upper feed dog assembly
141 card slot
142 adjusting arm fork
200 spindle
201 axle
202 connecting rod
203 transmission rod
204 crank
205 slide block
300 front and back cloth feeding shafts
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
In the present invention, the "upper feed amount" means an amount by which the upper feed dog moves in the front-rear direction (hereinafter, referred to as a front-rear amount) every time the main shaft rotates one turn. In the present invention, the "front-back" means the front-back direction in the cloth feeding direction, and the "left-right" means the left-right direction when the sewing machine is viewed from the front. The term "up and down" refers to the up and down direction of the sewing machine.
As shown in fig. 1, the present invention provides a sewing machine having a front and rear amount driving mechanism for driving an upper feed dog assembly 100 to move forward and backward, and a vertical amount driving mechanism for driving the upper feed dog assembly 100 to move up and down, wherein a feed trajectory is formed by the combined action of the swing of the upper feed dog in the front and rear direction and the feed dog in the vertical direction. The front and rear amount driving mechanism comprises an upper feed dog assembly 100, a front and rear amount adjusting mechanism and a front and rear feed shaft 300 in transmission connection with the main shaft 200, the upper feed dog assembly 100 comprises an upper feed dog and an upper feed dog holder, the upper feed dog assembly 100 is connected with the front and rear feed shaft 300, the main shaft 200 drives the front and rear feed shaft 300 to rotate to realize front and rear movement of the upper feed dog in the upper feed dog assembly 100, and an adjusting shaft 14 in the front and rear amount adjusting mechanism is connected with the front and rear feed shaft 300 to adjust the swing angle of the front and rear feed shaft 300. The utility model discloses mainly relate to front and back volume adjustment mechanism, it still includes as shown in fig. 1 to 5:
one end of the adjusting rod 3 is fixedly connected with the adjusting shaft 14 in the sewing machine shell 13, and a reset spring for resetting is arranged at the connecting position of the adjusting rod 3 and the adjusting shaft 14;
the adjusting part is arranged in sewing machine casing 13's outside, and the adjusting part is including taking adjusting plate 4 and the regulating block 10 of sliding tray 41, and adjusting plate 4 is fixed on sewing machine casing 13, and regulating block 10 slides and locates just can lock the location in the sliding tray 41, regulating block 10 with adjust the other end of pole 3 and link to each other, pass through when regulating block 10 slides in sliding tray 41 adjust pole 3 and drive regulating spindle 14 rotates, and then changes the amplitude of swing of front and back work feed shaft.
The utility model discloses an its setting of adjusting part is in the outside of sewing machine casing, and adjusting part links to each other with regulation pole 3, and adjusts pole 3
The adjusting shaft 14 is fixedly connected with the adjusting shaft 14 in the sewing machine shell, the adjusting shaft 14 can be driven to rotate through the adjusting rod 3, the swing amplitude of the front and back cloth feeding shafts 300 can be changed due to the rotation of the adjusting shaft 14, and finally the change of the moving amount of the upper cloth feeding teeth in the front and back direction is changed; because the adjusting rod 3 is fixedly connected with the adjusting shaft 14 in the sewing machine shell, the length of the adjusting shaft 14 can be shorter, the adjusting component is arranged outside the sewing machine shell 13, the position of the adjusting component can be arranged according to the trend of the adjusting rod 3, namely the adjusting rod 3 occupies little space in the sewing machine shell, and therefore an electric control mechanism can be additionally arranged in the sewing machine shell 13.
Front and rear amount driving mechanism
As shown in fig. 1, the front and rear feed shafts 300, the adjusting shaft 14, and the main shaft 200 in this embodiment are rotatably supported in the housing of the sewing machine in the left-right direction, and the main shaft 200 is a total driving shaft in the sewing machine and is used as a power source for the upper feed dog assembly 100 to swing back and forth and up and down.
The spindle 200 rotates to drive the driving rod 203 to swing through the driving shaft 201 of the connecting rod 202, the connecting rod 203 drives the front and back cloth feeding shafts 300 to swing through the crank 204, and the swinging amplitude of the front and back cloth feeding shafts 300 determines the front and back swinging amount of the upper cloth feeding tooth frame, so that the upper cloth feeding teeth are driven to feed cloth.
The front and rear amount adjusting mechanism comprises an adjusting shaft 14 for adjusting the swing amplitude of the front and rear cloth feeding shafts 300, and specifically comprises: the adjusting shaft 14 is provided with an adjusting arm fork 142, the driving rod 203 is slidably provided with a slide block 205, another slide block (not shown) connected with the slide block 205 is positioned in the adjusting arm fork 142, when the adjusting shaft 14 rotates, the adjusting arm fork 142 is driven to rotate so as to change the angle of the adjusting arm fork 142 relative to the horizontal plane, the adjusting arm fork 142 drives the slide block 205 to slide along the driving rod 203 so as to change the distance between the slide block 205 and the center of the main shaft, and the swing amplitude of the front and rear cloth feeding shafts 300 can be changed according to the transmission relation.
In order to better connect the adjusting rod 3 and the adjusting shaft 14, as shown in fig. 1 and fig. 2, in this embodiment, a clamping groove 141 is disposed at an end of the adjusting shaft 14, and one end of the adjusting rod 3 is disposed in the clamping groove 141 and fixed to the adjusting shaft 14 by a fixing member 1. The arrangement of the locking groove 141 in this embodiment enables the adjusting rod 3 and the adjusting shaft 14 to be circumferentially positioned, and the adjusting rod 3 is pulled to drive the adjusting shaft 14 to rotate. For better fixation, the fixing member 1 in this embodiment is a shaft screw, the end of the adjusting shaft 14 has a threaded hole, and the fixing member 1 is disposed in the threaded hole and fixes the adjusting rod 3 and the adjusting shaft 14 axially.
The fixing manner of the adjusting rod 3 and the adjusting shaft 14 is not limited to this, and it is only necessary to swing the adjusting rod to drive the adjusting shaft 14 to rotate.
In order to facilitate the resetting of the adjusting lever 3, as shown in fig. 2 and 4, a torsion spring 2 for resetting the adjusting lever 3 is disposed at a connection position of the adjusting lever 3 and the adjusting shaft 14 in this embodiment, one end of the torsion spring 2 is connected to an inner wall of the sewing machine housing 13, and the other end of the torsion spring 2 is connected to the adjusting lever 3.
One embodiment of the adjusting assembly
As shown in fig. 2 and 3, the adjusting plate 4 of the present embodiment is vertically fixed above the sewing machine housing 13, and the adjusting assembly further includes a fine adjustment mechanism for adjusting the position of the adjusting rod 3 in the sliding groove 41. The fine adjustment mechanism of the embodiment can finely adjust the position of the adjusting rod 3 in the sliding groove through the fine adjustment mechanism after the adjusting block 10 is released and the adjusting rod 3 is stirred, so that the adjustment is more accurate.
Referring to fig. 2 and 3, in the present embodiment, an adjusting groove 42 is further disposed on the adjusting plate 4, the fine adjustment mechanism is a feed screw-nut mechanism, two ends of a feed screw 9 in the feed screw-nut mechanism are rotatably supported on the adjusting plate 4, a space for the adjusting rod 3 to pass through is provided between the feed screw 9 and the adjusting plate 4, a nut 8 in the feed screw-nut mechanism has a sliding portion located in the adjusting groove 42, and the feed screw 9 is rotated to drive the nut 8 to slide along the adjusting groove 42, so that the nut 8 acts on the adjusting rod 3 to finely adjust the adjusting rod. The fine adjustment mechanism is not limited to this, and may have other configurations, and may be configured to realize fine swinging of the adjustment lever.
In order to facilitate the rotation of the screw rod 9, a rotating disc 7 is arranged at one end of the screw rod 9, and the screw rod 9 can be rotated by screwing the rotating disc 7. In this embodiment, the adjusting plate 4 is provided with a support hole, and two ends of the screw rod 9 are rotatably supported in the support hole. For the convenience of limiting the screw rod 9, a compression spring is arranged at one end of the screw rod 9 in a penetrating mode, and a clamp spring is arranged at the other end of the screw rod 9.
For the convenience of adjustment, the adjustment plate 4 of this embodiment is provided with scales distributed along the groove edge of the sliding groove 41.
In this embodiment, the two ends of the sliding groove 41 are provided with limiting members capable of limiting and abutting against the adjusting rod 3, and the limiting members in this embodiment are composed of a limiting nut 6 and a limiting screw 5.
In this embodiment, the adjusting block 10 is a locking nut, and is connected to the adjusting rod 3 through a screw 11, the adjusting rod 3 and the adjusting plate 4 can be fixed by tightening the locking nut, and the adjusting rod 3 can be released by adjusting the locking nut.
When the cloth feeding amount needs to be adjusted, only the locking and locking nut needs to be loosened, the fixed relation between the adjusting rod 3 and the adjusting plate 4 is removed, and at the moment, two methods are used for realizing adjustment: firstly, the adjusting rod 3 is pulled to rotate around the axis center of the adjusting shaft 14 in the area between the two limiting parts until the adjusting rod rotates to a proper position, and then the locking nut is locked again; secondly, the screw rod 9 is rotated, the screw rod 9 drives the nut 8 to slide along the adjusting groove 42 on the adjusting plate 4, and the nut 8 drives the adjusting rod 3 to swing, so that fine adjustment is realized.
In this embodiment, a dustproof gasket 12 is disposed between the adjusting plate 4 and the sewing machine housing 13, and the adjusting rod 3 is inserted into a hole of the dustproof gasket 12.
Another embodiment of the adjustment assembly
Referring to fig. 4 and 5, in the present embodiment, the adjusting block is an adjusting nut 16, the adjusting nut 16 is locked in the sliding groove 41 by a screw 17, the other end of the adjusting rod 3 is provided with a long hole, the adjusting block 3 is connected with an adjusting crank 15, and the adjusting crank 15 is provided with a shaft portion disposed in the long hole. In this embodiment, the adjusting rod 3 does not pass through the housing 13 of the sewing machine, and is connected to the adjusting nut 16 through the adjusting crank 15, and the adjusting crank 15 and the adjusting plate 4 can be locked by screwing the adjusting nut 16, or the adjusting crank 15 can be released, and the adjusting rod 3 can be swung by sliding the adjusting nut 16 when the adjusting nut is released.
In this embodiment, the adjusting plate 4 is a scale plate, i.e. scales are provided along the groove edge of the sliding groove 41.
The adjusting plate 4 in this embodiment may be fixed to a front side surface (not shown) of the sewing machine housing 13, or may be fixed above the sewing machine housing 13 (see fig. 4).
A dustproof sealing gasket is arranged between the adjusting plate 4 and the sewing machine shell 13, and the adjusting crank 15 is arranged in the dustproof sealing gasket in a penetrating way.
When the cloth feeding amount needs to be adjusted, the adjusting nut 16 is rotated to release the fastening relation between the adjusting nut 16 and the scale plate, the adjusting nut 16 is pushed forwards and backwards to drive the adjusting crank 15 to move, and the adjusting crank 15 is tangent to the adjusting rod 3 in a sliding way, so that the adjusting rod 3 can rotate around the center of the adjusting shaft 14, and the purpose of adjustment is achieved.
To sum up, the upper cloth feeding amount adjusting mechanism of the sewing machine has simple structure and easy installation and operation, when in installation, only the adjusting rod and the adjusting shaft are fixedly connected in the sewing machine shell, the reset spring is arranged at the connection part of the adjusting rod and the adjusting shaft, the adjusting component is fixed outside the sewing machine shell, and the reset spring and the adjusting component hardly occupy the space in the sewing machine shell, so that an electric control mechanism can be additionally arranged in the shell; when the cloth feeding device is adjusted, the adjusting shaft can be driven to rotate only by releasing the adjusting block and stirring the adjusting rod, the angle of the adjusting arm fork on the adjusting shaft relative to the horizontal plane is changed, the swing amplitude of the front and rear cloth feeding shafts when the main shaft rotates is changed through the transmission relation, and the front and rear cloth feeding amount of the cloth feeding teeth is changed. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An upper cloth feeding amount adjusting mechanism of a sewing machine comprises an upper cloth feeding tooth assembly, a front and back amount adjusting mechanism and a front and back cloth feeding shaft in transmission connection with a main shaft, wherein the upper cloth feeding tooth assembly is connected with the front and back cloth feeding shaft; characterized in that, the front and rear amount adjusting mechanism further comprises:
one end of the adjusting rod is fixedly connected with the adjusting shaft in the sewing machine shell, and a reset spring for resetting is arranged at the connecting position of the adjusting rod and the adjusting shaft;
the adjusting part is arranged in the outside of sewing machine casing, and the adjusting part is fixed including regulating plate and the regulating block of taking the sliding tray on the sewing machine casing, the regulating block slides and locates just can lock the location in the sliding tray, the regulating block with the other end of adjusting the pole links to each other, passes through when the regulating block slides in the sliding tray the regulation pole drives the regulating spindle rotates, and then changes the swing range of front and back work feed shaft.
2. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the end of the adjusting shaft is provided with a clamping groove, and one end of the adjusting rod is arranged in the clamping groove and is fixed with the adjusting shaft through a fixing piece.
3. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the reset spring is a torsion spring, one end of the torsion spring is connected with the inner wall of the sewing machine shell, and the other end of the torsion spring is connected with the adjusting rod.
4. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the adjusting assembly further comprises a fine adjusting mechanism for adjusting the position of the adjusting rod in the sliding groove.
5. The upper feed amount adjusting mechanism of a sewing machine according to claim 4, characterized in that: the adjusting plate is vertically fixed, an adjusting groove is formed in the adjusting plate, the fine adjustment mechanism is a feed screw nut mechanism, two ends of a feed screw in the feed screw nut mechanism are rotatably supported on the adjusting plate, a space for the adjusting rod to penetrate through is formed between the feed screw and the adjusting plate, a nut in the feed screw nut mechanism is provided with a sliding portion located in the adjusting groove, and the feed screw is rotated to drive the nut to slide along the adjusting groove to enable the nut to act on the adjusting rod.
6. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the adjusting plate is provided with scales distributed along the groove edge of the sliding groove.
7. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the adjusting block is locked in the sliding groove through a screw, a long hole is formed in the other end of the adjusting rod, the adjusting block is connected with an adjusting crank, and a shaft portion arranged in the long hole is arranged on the adjusting crank.
8. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: the adjusting plate is fixed on the front side surface of the sewing machine shell or above the sewing machine shell.
9. The upper feed amount adjusting mechanism of a sewing machine according to claim 1, characterized in that: a dustproof sealing gasket is arranged between the adjusting plate and the sewing machine shell.
10. A sewing machine characterized by: the sewing machine has the upper feed amount adjusting mechanism of the sewing machine according to any one of claim 1 to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057886.8U CN210314750U (en) | 2019-07-08 | 2019-07-08 | Upper cloth feeding amount adjusting mechanism of sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057886.8U CN210314750U (en) | 2019-07-08 | 2019-07-08 | Upper cloth feeding amount adjusting mechanism of sewing machine and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210314750U true CN210314750U (en) | 2020-04-14 |
Family
ID=70149440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921057886.8U Active CN210314750U (en) | 2019-07-08 | 2019-07-08 | Upper cloth feeding amount adjusting mechanism of sewing machine and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210314750U (en) |
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2019
- 2019-07-08 CN CN201921057886.8U patent/CN210314750U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |