CN1811038A

CN1811038A - Clothe holder of sewing machine

Info

Publication number: CN1811038A
Application number: CN 200510005158
Authority: CN
Inventors: 林瑞文
Original assignee: GAOLIN CO Ltd
Current assignee: GAOLIN CO Ltd
Priority date: 2005-01-28
Filing date: 2005-01-28
Publication date: 2006-08-02

Abstract

The cloth holder of sewing machine includes a machine body with arm and pedestal; a sewing platform on the pedestal; a swinging mechanism connected to the arm and with swinging part and link rod connected together for producing some elastic torsion; a cloth holding mechanism connected to one end of the swinging part and with pressing arm and pressing board connected together, with the pressing board being held on the sewing platform; and a pressing rod mechanism set on the arm with one end pressing the pressing arm elastically. Thus, the cloth holder may be used for sewing cloth material of different sorts and in different thicknesses.

Description

Cloth pressuring device of sewing machine

Technical field

The present invention relates to a kind of cloth pressuring device of sewing machine, relate in particular to a kind of cloth sewing that can be used for variety classes or thickness,, increase the cloth pressuring device of sewing machine of ease of use to improve the scope of application of Sewing machines.

Background technology

Along with the continuous progress and development of science and technology, constantly having new product to be developed aspect the material of cloth, the kind, and the cloth of these special materials still must be sewed up connection by Sewing machines, just can finish clothes such as clothes for dress, trousers, skirt.Yet because the nature difference of the material of these clothes, kind is big, therefore original mechanism with general Sewing machines processes, sewing had faced the embarrassed look that can't finish sewing already, how to provide cloth pressuring device of sewing machine applicable to various clothes to become and is engaged in the important topic that those skilled in the art study.

Known cloth pressuring device of sewing machine as shown in Figures 1 and 2, mainly includes body 10a, swing mechanism 20a, cloth presser 30a and the 40a of pressure bar mechanism.Wherein, body 10a has horn 11a and base 12a, has sewing platform 13a on base 12a.Swing mechanism 20a is provided with a side that is installed in horn 11a, and it includes swing component 21a and connecting rod 22a.The end of swing component 21a is connected with connecting rod 22a, and it has elastic torsion; Its other end is connected with cloth presser 30a.Cloth presser 30a includes and presses arm 31a and pressing plate 32a, and an end that presses arm 31a is connected with pressing plate 32a, and pressing plate 32a then is pressed together on the sewing platform 13a of base 12a.The horn 11a of body 10a is provided with the 40a of pressure bar mechanism, and one end elasticity presses pressing on the arm 31a at cloth presser 30a.Thus, be combined into a cloth pressuring device of sewing machine.

Above-mentioned known cloth pressuring device of sewing machine, this cloth-pressing device on using, reality still has following defective: owing to only can provide the arc track of single form, can't satisfy constantly pushing away the new cloth kind and the demand of thickness at all, cause the obstacle of cloth in sewing, course of conveying; In addition, such Sewing machines generally mostly is industrial, promptly be its final purpose with quick and production in enormous quantities, be replaced by different types of cloth when production line and add man-hour, often need hundreds of or thousand Sewing machines is carried out complexity adjustment and examination seam, not only cause having some setbacks of workflow, more make the time of the required cost of sewing increase, can't effectively control manufacturing cost and human cost.

So, the inventor is in view of the defective that exists in the above-mentioned prior art, rely on the research and development experience for many years of being engaged in, at above-mentioned improved inconvenience and the defective of carrying out, through concentrating on studies and cooperating actual utilization, and, propose a kind of reasonable in design and effectively improve the present invention of above-mentioned defective finally in line with excelsior spirit.

Content of the present invention

Main purpose of the present invention is to provide a kind of cloth pressuring device of sewing machine, it can be connected the swing component conversion in the difference perforation of horn, make and press the movement locus that arm produces different arcs, and be used for the cloth sewing of variety classes or thickness, improve the scope of application of Sewing machines, increase the convenience of using.

To achieve these goals, the invention provides a kind of cloth pressuring device of sewing machine, it comprises:

Body, it has horn and base, offers at least two perforation at the back side of this horn, has the sewing platform on this base;

Swing mechanism, it includes swing component and connecting rod, and this swing component is arranged in the perforation of described horn, and is connected with this connecting rod, makes this swing component have elastic torsion;

Cloth presser, it includes and presses arm and pressing plate, and this end that presses arm is connected with the swing component of described swing mechanism, and the other end is connected with this pressing plate; The bottom surface of this pressing plate is pressed together on the sewing platform of described base; And

Pressure bar mechanism, it is arranged on the horn of described body, and an end elasticity of this pressure bar mechanism presses pressing on the arm at described cloth presser.

Cloth pressuring device of sewing machine of the present invention can be applicable to the cloth sewing of variety classes or thickness, improves the scope of application of Sewing machines, increases the convenience of using.

Brief description of drawings

Fig. 1 is the combination of side view of known cloth pressuring device of sewing machine;

Fig. 2 is the combination rearview of known cloth pressuring device of sewing machine;

Fig. 3 is the three-dimensional exploded view of the cloth-pressing device of first embodiment of the invention;

Fig. 4 is connected the combination rearview of first perforation for the cloth-pressing device of first embodiment of the invention;

Fig. 5 is connected the lateral movement schematic diagram of first perforation for the cloth-pressing device of first embodiment of the invention;

Fig. 6 is connected the combination rearview of second perforation for the cloth-pressing device of second embodiment of the invention;

Fig. 7 is connected the lateral movement schematic diagram of second perforation for the cloth-pressing device of second embodiment of the invention.

In the accompanying drawing, the list of parts of each label representative is as follows:

The 10a-body

11a-horn 12a-base

13a-sewing platform

The 20a-swing mechanism

21a-swing component 22a-connecting rod

The 30a-cloth presser

31a-presses arm 32a-pressing plate

40a-pressure bar mechanism

The 10-body

11-horn 12-base

The 13-first perforation 14-second perforation

15-sewing platform

The 20-swing mechanism

21-swing component 211-axostylus axostyle

The vertical hole of 212-fixed arm 213-

214-transverse holes 22-connecting rod

The 221-transverse arm 222-axle collar

The 23-elastic parts

The 30-cloth presser

31-presses arm 311-groove

312-intercommunicating pore 313-location division

314-circular shaft 32-pressing plate

40-pressure bar mechanism

41-knob 42-elastomer

43-cylindrical shell 44-depression bar

The 441-first latch 442-second latch

The 443-groove

50-tommy bar assembly

51-tommy bar 52-spring

The 60-push-rod assembly

61-push rod 62-spring

63-hook-type bar

The 70-needle bar

71-car pin

The specific embodiment

In order to make those skilled in the art further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the utility model.

Fig. 3, Fig. 4 and Fig. 5 are respectively the three-dimensional exploded view of the cloth-pressing device of first embodiment of the invention, the combination rearview and the lateral movement schematic diagram of connection first perforation.The invention provides a kind of cloth pressuring device of sewing machine,, mainly comprise body 10, swing mechanism 20, cloth presser 30 and pressure bar mechanism 40 as Fig. 3, Fig. 4 and Fig. 5, wherein:

Body 10 has horn 11 and is connected the base 12 of horn 11 belows.Offer first perforation, 13 and second perforation 14 at the back side of horn 11.Perforation 13,14 can directly shape on body 10, or after the boring earlier the axle sleeve shaping is set therein again, to improve the convenience of changing and to increase service life.Has the sewing platform 15 of placing and carrying for object to be sewn on the base 12.

Swing mechanism 20 comprises swing component 21, connecting rod 22 and elastic parts 23.Swing component 21 can be formed in one or be formed by a plurality of combination of components, is made of axostylus axostyle 211 and the fixed arm 212 that is connected an end face of axostylus axostyle 211 in the present embodiment.On fixed arm 212, be provided with vertical hole 213 and two transverse holes 214.The centre-to-centre spacing of two transverse holes 214 equates with the centre-to-centre spacing of first perforation, 13 and second perforation 14.The axostylus axostyle 211 of swing component 21 is arranged in first perforation 13 (or second perforation 14) of horn 11, and is connected with connecting rod 22.Connecting rod 22 can be formed in one or be formed by a plurality of combination of components, is made of the transverse arm 221 and the axle collar 222 in the present embodiment.Elastic parts 23 is set on first perforation, 13 the axle sleeve of horn 11, and folder pulls between an end face of horn 11 and transverse arm 221, and two elongated ends of elastic parts 23 then respectively subsides be against on the arm of horn 11 and transverse arm 221, make swing component 21 have elastic torsion.

Cloth presser 30 comprises and presses arm 31 and pressing plate 32.Press the groove 311 that an end of arm 31 offers " ㄈ " shape, on groove 311, offer the intercommunicating pore 312 of perforation.Groove 311 inserts for an end of fixed arm 212, inserts in vertical hole 213 of intercommunicating pore 312 and fixed arm 212 with steady pin 33 again, will press arm 31 and be connected with fixed arm 212; The other end that presses arm 31 is formed with location division 313 and circular shaft 314.Pressing plate 32 and circular shaft 314 mutually sheathed connections, its bottom surface is pressed together on the sewing platform 15 of base 12.

Pressure bar mechanism 40 is provided with and is connected on the horn 11 of body 10, and it includes knob 41, is arranged on the elastomer 42 of knob 41 inside, is set in the cylindrical shell 43 outside the elastomer 42 and is connected cylindrical shell 43 belows and elastomer 42 is pressed from both sides the depression bar 44 of pulling.Be connected with first latch 441 and second latch 442 on the depression bar 44 respectively, and offer groove 443 in its bottom.Groove 443 can be striden to establish and be pressed on the location division 313 that presses arm 31, utilizes the setting of elastomer 42, makes depression bar 44 can flexiblely press pressing on the arm 31 at cloth presser 30.

In addition, for making manipulating of this cloth-pressing device more convenient, it further includes tommy bar assembly 50 and push-rod assembly 60.Tommy bar assembly 50 comprises tommy bar 51 and spring 52, inserts spring 52 and tommy bar 51 with fixed screw, tommy bar 51 is fixedly connected on the side of horn 11, and an end of tommy bar 51 is corresponding to second latch, 442 settings of depression bar 44.One elongated end of spring 52 wears and is fixed on tommy bar 51, and another elongated end pastes and is against on the horn 11, makes the more laborsaving and damping of operation of tommy bar 51.Push-rod assembly 60 comprises push rod 61, pastes the spring 62 and the hook-type bar 63 that are against push rod 61 1 sides.Insert spring 62 and push rod 61 with fixed screw, push rod 61 is fixedly connected on the back side of base 12.Offer a plurality of holes on push rod 61, wherein a hole is connected with an end of hook-type bar 63, and the other end of hook-type bar 63 is connected on the transverse arm 221; Other hole of push rod 61 can collude for chain and establish, and this chain extends on the pedal of below again, and is controlled the lifting of cloth-pressing device by user's foot.

In addition, cross-under horn 11 and be parallel to pressure bar mechanism 40 above locate to have needle bar 70, the bottom of needle bar 70 is connected with car pin 71, its be located at work feed tooth (not shown) in the sewing platform 15 and cooperatively interact with carrying to the cloth of sewing.

Combination by said modules, when the swing component 21 of swing mechanism 20 is arranged on first perforation 13 of horn 11, cloth presser 30 is the center of circle with first perforation 13, and with first the perforation 13 intersections apart from sewing platform 15 and car pin 71 be radius, the work feed tooth (not shown) that cooperates pressing plate 32 belows, do the work feed motion of orthodrome track,, and be applicable to the sewing of the clothing that thicker cloth or retractility are high because long formed moment of its arm of force (Moment) is big.

The cloth-pressing device that Fig. 6 and Fig. 7 are respectively second embodiment of the invention is connected the second combination rearview and the lateral movement schematic diagram of boring a hole.As Figure 6 and Figure 7, when desiring to change into another kenel and come sewing, unclamp the fixed screw that is fixed on fixed arm 212 earlier, fixed arm 212 is separated with axostylus axostyle 211, and unclamp the fixed screw of the axle collar 222, and axostylus axostyle 211 is extracted out from first perforation 13 of horn 11, again axostylus axostyle 211 is inserted second perforation 14 of horns 11, and each fixed screw that locks above-mentioned in proper order, can finish the process that changes the outfit rapidly.During work, cloth presser 30 is the center of circle with second perforation 14, with second perforation, 14 intersections apart from sewing platform 15 and car pin 71 is radius, and the work feed tooth (not shown) of cooperation pressing plate 32 belows, do the work feed action of little arc track (radius of turn is less than first embodiment of the invention), and, and be applicable to the sewing of the clothing low than grenadine or retractility because short formed moment of its arm of force (Moment) is little.

In sum, cloth pressuring device of sewing machine of the present invention has practicality, novelty and creativeness, and structure of the present invention also never sees like product and public use, does not more publish before the application on any publication, meets the requirement of application for a patent for invention fully.

The above only is the preferred embodiments of the present invention, be not so promptly limit claim of the present invention, the equivalent structure transformation that every utilization specification of the present invention and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present invention.

Claims

1. a cloth pressuring device of sewing machine is characterized in that, comprising:

Body, described body has horn and base, offers at least two perforation at the back side of described horn, has the sewing platform on the described base;

Swing mechanism, it includes swing component and connecting rod, and described swing component is arranged on a perforation of described horn, and is connected with described connecting rod, makes described swing component have elastic torsion;

Cloth presser, it includes and presses arm and pressing plate, and a described end that presses arm is connected with the swing component of described swing mechanism, and the other end is connected with described pressing plate, and the bottom surface of described pressing plate is pressed together on the sewing platform of described base; And

Pressure bar mechanism, it is arranged on the horn of described body, and an end elasticity of described pressure bar mechanism presses pressing on the arm at described cloth presser.

2. cloth pressuring device of sewing machine according to claim 1 is characterized in that the swing component of described swing mechanism has axostylus axostyle and fixed arm, and described fixed arm and axostylus axostyle are formed in one.

3. cloth pressuring device of sewing machine according to claim 1 is characterized in that the swing component of described swing mechanism has axostylus axostyle and fixed arm, and described fixed arm is fixedlyed connected with fixed screw with axostylus axostyle.

4. as cloth pressuring device of sewing machine as described in the claim 3, it is characterized in that offering two transverse holes on described fixed arm, the centre-to-centre spacing of described two transverse holes equates with the centre-to-centre spacing of two perforation of horn.

5. cloth pressuring device of sewing machine according to claim 1, it is characterized in that described swing mechanism further includes elastic parts, described elastic parts is arranged on the described swing component, and the folder pull between an end face of described horn and connecting rod, make described swing component have elastic torsion.

6. cloth pressuring device of sewing machine according to claim 1 is characterized in that arm one end that presses of described cloth presser is formed with location division and circular shaft, and described circular shaft is connected with described pressing plate; Described pressure bar mechanism has depression bar, offers groove in described depression bar bottom, and described groove matches with the location division that presses arm and is connected.