CN201538879U - Needle pitch knob component for sewing machine - Google Patents
Needle pitch knob component for sewing machine Download PDFInfo
- Publication number
- CN201538879U CN201538879U CN2009202450924U CN200920245092U CN201538879U CN 201538879 U CN201538879 U CN 201538879U CN 2009202450924 U CN2009202450924 U CN 2009202450924U CN 200920245092 U CN200920245092 U CN 200920245092U CN 201538879 U CN201538879 U CN 201538879U
- Authority
- CN
- China
- Prior art keywords
- stitch length
- length knob
- needle pitch
- knob
- pitch knob
- 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 - Lifetime
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a needle pitch knob component for a sewing machine, which is used for adjusting sewing needle pitches. The needle pitch knob component comprises a needle pitch knob, a needle pitch knob adjusting mechanism and a zero positioning mechanism; the adjusting mechanism includes positioning posts and a needle pitch knob seat; a plurality of the positioning posts are evenly distributed between the lateral wall of an outer cover of the needle pitch knob and a counter-bore connecting component and extend outside the end surface of the outer cover; the needle pitch knob seat at least includes a positioning ring; vertical teeth are arranged on one inner lateral surface of the positioning ring; a projection elastically in pressure fit with the positioning ring is arranged on the outer side of the end portion of each positioning post on the needle pitch knob; the end surface of the outer cover of the needle pitch knob is arranged correspondingly to the end surface of the positioning ring; the zero positioning mechanism is formed by a limited post and a fixedly arranged bumping post; and the limited post is arranged on the outer side of the counter-bore connecting component. As the friction force direction of a stop pin exerting on the needle pitch knob is changed, the needle pitch knob component moves outwards along a needle pitch, thereby causing twisted torque change to be comparatively small, having comparatively low assembly difficult and reducing cost.
Description
Technical field:
The utility model relates to the Sewing machines equipment technical field, is specifically related to a kind of stitch length knob assembly for sewing machines.
Background technology:
Stitch length knob assembly for sewing machines is used to adjust sewing needle apart from needle gage, it comprises a stitch length knob, stitch length knob, guiding mechanism and zero detent mechanism, described adjustment screw rod is arranged in the casing, described stitch length knob comprises enclosing cover, be provided with the hole countersunk connecting portion at the enclosing cover middle part, adjust screw rod and fixedly connected, adjust on the screw rod and also be arranged with spring with the hole countersunk connecting portion; Described guiding mechanism for the annular gear ring that is provided with on the cover gab end outside and on shell, be provided with annular gear ring corresponding spring ejector pin.
The utility model content
The technical problem that the utility model solved provide a kind of twisting moment variations less, assemble simple stitch length knob assembly for sewing machines.
For solving above-mentioned technical problem, the technical scheme that the utility model is taked:
The utility model comprises stitch length knob, guiding mechanism and zero detent mechanism, stitch length knob comprises enclosing cover and hole countersunk connecting portion, its special character is: described guiding mechanism comprises reference column and stitch length knob seat, several reference columns are distributed between the sidewall and hole countersunk connecting portion of enclosing cover on the stitch length knob, and extend and cover the outside of end face; At least comprise on the described stitch length knob seat that a medial surface is provided with the centring ring of vertical tooth; The end arranged outside of reference column has the projection that is press-fitted with the centring ring elastic pressure on the described stitch length knob, the corresponding setting with the end face of centring ring of the end face of the enclosing cover of stitch length knob; Between the bottom of stitch length knob enclosing cover and stitch length knob seat, be provided with spring; Described zero detent mechanism is made of the limited post of hole countersunk connecting portion arranged outside and the bumping post that fixedly installs.
Evenly be furnished with reinforcement between above-mentioned reference column and the hole countersunk connecting portion.
Above-mentioned stitch length knob seat is that the middle part is provided with porose lid shape, and bumping post is arranged on the inside bottom of stitch length knob seat.
The surface of above-mentioned stitch length knob is provided with scale value, and the stitch length knob seat is provided with corresponding mark.
The end face of above-mentioned stitch length knob seat is provided with at least one positioning convex.
Compared with prior art, the beneficial effects of the utility model:
1, changes because of stitch length knob is subjected to the frictional force direction of latch,, cause the twisting moment variations less along with needle gage outwards moves;
2, assembly difficulty is lower;
3, reduce cost.
Description of drawings
Fig. 1 is the structural representation of stitch length knob;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of stitch length knob seat;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of casing;
Fig. 6 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The utility model comprises stitch length knob and stitch length knob seat two parts.
Referring to Fig. 1 and Fig. 2, said stitch length knob comprises enclosing cover 8 and hole countersunk connecting portion 6, is evenly equipped with several and stretches out reference column 4 outside enclosing cover 8 end faces between the sidewall of enclosing cover 8 and hole countersunk connecting portion 6, and the end arranged outside of reference column 4 has projection 13; The limited post 7 of hole countersunk connecting portion 6 arranged outside; Evenly be furnished with reinforcement 3 between said reference column 4 and the hole countersunk connecting portion 6.The upper surface of stitch length knob is provided with scale value.
Referring to Fig. 3 and Fig. 4, the lid shape that said stitch length knob seat 1 is porose for the middle part is provided with, its outer ring is the centring ring 5 that a medial surface is provided with vertical tooth, and bumping post 10 is arranged on the inside bottom of stitch length knob seat 1, and the lateral surface on the centring ring 5 of stitch length knob seat 1 is provided with mark.
Referring to Fig. 5, for needs are installed, the casing installation portion 2 of Sewing machines is provided with embedded groove 11, and the stitch length knob seat embeds and be fixing.
Stitch length knob seat and casing installation portion 2 be combined with a lot of modes, bonding or screw is connected in casing installation portion 2 and also can.Be not limited to aforesaid way.
Referring to Fig. 6, adjust screw rod and be arranged in the casing installation portion 2, adjust screw rod and fixedly connected with the hole countersunk connecting portion.The corresponding setting of end face of end face and the centring ring 5 of enclosing cover 8 is provided with spring 9 between the bottom of enclosing cover 8 and the stitch length knob seat 1 in this moment stitch length knob, and the end bosses 13 of reference column 4 and centring ring 5 sides formation elastic pressure are press-fitted structure.
In this structure, reference column 4 on the stitch length knob on the enclosing cover 8 and the centring ring of stitch length knob seat 5 form guiding mechanism.The stitch length knob rotation, the end bosses 13 of reference column 4 cooperates with the vertical tooth spiral commentaries on classics of centring ring 5 medial surfaces and locatees, and stitch length knob drives adjusts screw action.
In this structure, limited post 7 and the bumping post on the stitch length knob seat 1 10 on the stitch length knob constitute zero detent mechanism, and when stitch length knob rotated to zero-bit, limited post 7 was blocked by bumping post 10.
Claims (5)
1. stitch length knob assembly for sewing machines, comprise stitch length knob, guiding mechanism and zero detent mechanism, stitch length knob comprises enclosing cover (8) and hole countersunk connecting portion (6), it is characterized in that: described guiding mechanism comprises reference column (4) and stitch length knob seat (1), several reference columns (4) are distributed between the sidewall and hole countersunk connecting portion (6) of enclosing cover on the stitch length knob (8), and the outside of lid (8) end face that extends;
At least comprise on the described stitch length knob seat (1) that a medial surface is provided with the centring ring of vertical tooth (5); The end arranged outside of reference column on the described stitch length knob (4) has the projection (13) that is press-fitted with the centring ring elastic pressure, the corresponding setting of end face of the end face of the enclosing cover of stitch length knob (8) and centring ring (5); Between the bottom of stitch length knob enclosing cover (8) and stitch length knob seat (1), be provided with spring (9);
Described zero detent mechanism is made of the limited post (7) of hole countersunk connecting portion (6) arranged outside and the bumping post (10) that fixedly installs.
2. a kind of stitch length knob assembly for sewing machines according to claim 1 is characterized in that: evenly be furnished with reinforcement (3) between described reference column (4) and the hole countersunk connecting portion (6).
3. a kind of stitch length knob assembly for sewing machines according to claim 1 and 2 is characterized in that: the lid shape that described stitch length knob seat (1) is porose for the middle part is provided with, bumping post (10) is arranged on the inside bottom of stitch length knob seat (1).
4. a kind of stitch length knob assembly for sewing machines according to claim 3 is characterized in that: the surface of described stitch length knob is provided with scale value, and stitch length knob seat (1) is provided with corresponding mark.
5. a kind of stitch length knob assembly for sewing machines according to claim 3 is characterized in that: the end face of described stitch length knob seat (1) is provided with at least one positioning convex (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202450924U CN201538879U (en) | 2009-11-03 | 2009-11-03 | Needle pitch knob component for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202450924U CN201538879U (en) | 2009-11-03 | 2009-11-03 | Needle pitch knob component for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201538879U true CN201538879U (en) | 2010-08-04 |
Family
ID=42590331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202450924U Expired - Lifetime CN201538879U (en) | 2009-11-03 | 2009-11-03 | Needle pitch knob component for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201538879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709536B (en) * | 2009-11-03 | 2012-09-05 | 西安标准工业股份有限公司 | Stitch length knob assembly for sewing machines |
-
2009
- 2009-11-03 CN CN2009202450924U patent/CN201538879U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709536B (en) * | 2009-11-03 | 2012-09-05 | 西安标准工业股份有限公司 | Stitch length knob assembly for sewing machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100804 Effective date of abandoning: 20091103 |