CN101805963A

CN101805963A - The fixture of the shuttle seat of spool

Info

Publication number: CN101805963A
Application number: CN201010114698A
Authority: CN
Inventors: 汉斯·弗鲁奇格; 尼克劳斯·瓦克
Original assignee: BERNINA INTERNAT AG
Current assignee: BERNINA INTERNAT AG; BERNINA International AG
Priority date: 2009-02-17
Filing date: 2010-02-10
Publication date: 2010-08-18
Also published as: TW201031781A; EP2221410A1; US20100206207A1; JP2010188129A; CH700442A1

Abstract

The present invention relates to a kind of fixture of shuttle seat of spool.Fixture has a chain link (11) that connects with firm but rotary mode and creel (1).Helical spring (17) is supported on the chain link (11), creel (1) is put or put into to shuttle seat (5) after, helical spring (17) can be compressed.Only need topple over to make shuttle seat (5) or spool (7) slightly, be introduced the fixed position by the spring force of helical spring (17) then by chain link (11).

Description

The fixture of the shuttle seat of spool

Technical field

The present invention relates to a kind of fixture of shuttle seat of spool.

Background technology

The spool of Sewing machines (especially home-use Sewing machines) can be set directly in the creel, therefore can directly take.Another mode is that spool is arranged on an exclusive shuttle seat that is arranged in creel.The present invention places spool in the shuttle seat of creel with indirect mode.The present invention also can be applicable to directly to place the spool in the creel.DE-A13819405 discloses a kind of shuttle seat of Gear Planet Transmission bearing, and when using this kind shuttle seat, spool is to be pulled on the cylindrical roll bobbin axle (member of shuttle seat), and is fixed by a bumper bar.The bumper bar of this both arms shape is fixed by a spring-loaded plank in two positions (stop position and operating position).With manual type bumper bar is rotated 90 ° to one and be parallel to axial position, get final product the fixing of arming bar.Just spool can be shifted out from creel then.In order to be easy to that spool is shifted out from creel, the DE-A119510830 suggestion is provided with a helical spring between spool bottom surface (just being positioned at the spool flange of below) and creel.After bumper bar unclamped spool, helical spring can be with spool from outwards part extrusion of creel.Helical spring can apply a braking moment to spool in the sewing process simultaneously, and the size of this braking moment can change along with the difference of spool surface structure, and not influenced by external force.This braking moment can hinder the sewing process.

GB-A2149433 discloses another creel, and when using this creel, spool is fixed by a spring-loaded stationary spindle that can pass spool.Stationary spindle is rotated 1/4th circles stationary spindle can be unclamped and enter extracting position, and break away from creel fully with spool.Therefore stationary spindle must be introduced spool in the time of will putting into whole spool, and then fix.EP-B1 1541736 discloses a kind of fixture of spool, on creel, it is to be fixed on the spring that this kind can pass the fixture that centre bore enters in the spool, when spool is whole be pressed into creel after, spool can be fixed automatically.See through the radial displacement of fixture, spool is unclamped once again towards the rotating shaft of spool.The spring that carries fixture then will be released spool.

Summary of the invention

The objective of the invention is to propose a kind of fixture of shuttle seat of spool, this fixture can be fixed on the shuttle seat on the creel, and must not move retainer and just the shuttle seat can be unclamped, and can also be vertically that spool or shuttle seat is extrapolated from creel after unclamping.

The possess skills fixture of scheme 1 feature of employing can achieve the above object.Other technical scheme is a various favourable embodiment of the present invention.

Shuttle seat or spool are applied slight eccentricity pressure can be unclamped the fixed position of spool on creel, simultaneously the shuttle seat is partly dished out, if or spool is to be fixed on the creel under the situation that does not have the shuttle seat, spool is dished out.When fixing the shuttle seat of newly putting into creel or spool, only need shuttle seat or spool are pushed creel vertically, till shuttle seat or spool arrive the breach of creel and topple over, get final product.Just do not need to take other any fixation after this.The securing spool of the assembly that the is fixed assembly that can not be fixed is braked by any way, because there is no any CONTACT WITH FRICTION between fixation kit and the spool.

Therefore fixture of the present invention and without any need for latch, slide bar or cover plate.Unique movably assembly is the helical spring that is positioned on spool or the shuttle seat, and this helical spring effect is after fixing the fixed position to be maintained, and when unclamping spool or shuttle seat is released.

Opposite with known fixture, because the present invention do not need shuttle seat hinge, do not have therefore that any member that may hinder sewing thread to pass through is crossed the shuttle seat or spool is outwards outstanding.Because need not to be equipped with the mechanical component as hinge and so on, making has bigger space on shuttle seat or the spool, therefore can use the spool that more sewing threads are housed.

Below cooperate graphic and embodiment is described further content of the present invention.

Description of drawings

Fig. 1 is creel and the axial section figure that is positioned at the shuttle seat that has spool of its top;

Fig. 2 is the creel axial section figure of (the shuttle seat also has a bit) before the shuttle seat is about to be fixed that has a shuttle seat that is placed into;

Fig. 3 is the axial section figure that has the creel of the shuttle seat that is fixed;

Fig. 4 is for before spool is dished out, and has once again from the axial section figure of the creel of the released shuttle seat of stationary state;

Fig. 5 is the axial section figure that has the spool of the sleeve that is placed into;

Fig. 6 is the horizontal section figure of creel and shuttle seat one;

Fig. 7 is the stereogram as the spool of Fig. 5;

Fig. 8 is the axial section figure that is located immediately at another embodiment of the chain link on the creel.

The specific embodiment

Element numbers 1 is represented the creel of clamping device 3.As shown in Figure 1, shuttle seat 5 places the spool 7 in it coaxial with one, and is positioned at creel 1 top.This moment, shuttle seat 5 and spool 7 were not placed into creel 1 as yet.The state of this state when just changing/filling up shuttle seat 7 is the same.There is a chain link 11 to be placed on the axle 9 that is positioned at the center in the creel 1.The chain link 11 coaxial with axle 9 is to connect with firm but rotary mode and axle.Can be with plastics or metal as the material of making chain link 11.Chain link 11 can be made into cylindrical (not drawing), or the top region that is shown in has the constriction of a convex shoulder shape as shown.Shuttle seat 5 has a perforation 13 that is positioned at the center, the first half (a) of perforation 13 is cylindrical, Lower Half (b) is then around crossing 13 the circumference part of boring a hole, for example around the cylindrical scope of crossing 180 °, the zone on opposite then constitutes a cylindrical paragraph simultaneously, the axle in this zone favours the axle (Fig. 1 to Fig. 4, the left side of perforation 13) in other zone.Perforation 13 can be closed in the positive zone of shuttle seat 5, or at the diameter of this regional cross section diameter less than the cylindrical paragraph (a) of position perforation 13 thereon.

On the top that is positioned at chain link 11 around bench 15 or flat front surface on a coaxial helical spring 17 is arranged.The top of helical spring 17 is fixed on the shuttle seat 5, for example fixes in the mode of clamping or stick together.Therefore after putting shuttle seat 5, the upper locking ring 19 of helical spring 17 is to lean against on the shuttle seat 5.The diameter of retaining ring 19 is preferably greater than the diameter of other coil.The size design of helical spring 17 will make when shuttle seat 5 is whole to be fixed in the creel 1, helical spring 17 can be subjected to the effect of compression, when shuttle seat 5 is released, helical spring 17 to I haven't seen you for ages with shuttle seat 5 from creel 1 outwards part eject or dish out, to be convenient to catch shuttle seat 5.

Have in the bottom of chain link 11 (being also referred to as the shuttle seat support) together around groove 21.The axial height of groove 21 is slightly larger than the axial height of a crescent flange 23 on the shuttle seat 5, and this flange 23 is around a subregion of perforation 13, and direction inwardly.The interior rib 25 of flange 23 is slightly larger than the diameter (Fig. 6) of chain link 11 to the distance of the non-parallel wall section (b) on its opposite.

Below will further specify the mode of action of clamping device 3.

Shuttle seat 5 quilts of loading onto the spool 7 that newly fills up sewing thread are along axially passing through chain link 11 from top promotion.Helical spring 17 can arrive the elasticity positioning seat on the top that has chain link 11.

Eccentric position on the front 27 of shuttle seat 5 has a mark 29.Mark 29 can be the zone of a colour, also can be a zone that has groove of getting with laser, or a zone that is made of groove.As shown in Figure 2, in the time of fixing or lock shuttle seat 5, the sewer is with the center of a finger presses shuttle seat 5 (arrow F1); Continue to push, the flange 23 that exists only in subregion (about 180 °) in perforation 13 bottoms can make shuttle seat 5 topple over slightly.When shuttle seat 5 is toppled over the backwater horizontal line, this obliquity makes the crescent flange 23 in circle segment zone only can slip over the outer surface of chain link 11, enters then in the groove 21.

Unclamp 5 of shuttle seats from creel 1 is by reverse operation, just the mark 29 that is positioned at eccentric position with a finger presses shown in arrow F2 is toppled over shuttle seat 5, and it is the interior rib 25 of flange 23 is extrapolated from groove 21, spring force by helical spring 17 raises shuttle seat 5 then, up to enough two fingers of energy take out shuttle seat 5 from creel 1 till.

Fig. 5 shows an axial section figure who does not place the spool 7 in the shuttle seat 5.When sewing,, put into a rotating sleeve 31 at the center of spool 7 in creel 1 for spool can be rotated.The upper and lower of sleeve 31 is equipped with crimping or flange 33, so that make sleeve 31 keep end play in spool 7.Perforation 13 in the shuttle seat 5 of the make of the perforation 13 in the sleeve 31 and the embodiment of Fig. 1 to Fig. 4 is identical.In other words, the first half (a) is cylindrical, and Lower Half (b) is about cylindrical surface (referring to Fig. 2) that tilts towards shuttle seat 5 around half-turn.The top of sleeve 31 is closed, and its effect is the positioning seat as the helical spring of not drawing in Fig. 5 17.

The same with first embodiment, on the collar flange above being positioned at of sleeve 31, a mark 29 that is positioned at eccentric position is arranged, its effect is must exert pressure will unclamp the shuttle seat time position of F2 of indication operator.

According to another embodiment of the present invention (Fig. 8), chain link 11 is parts of axle 9, that is to say, the outer surface of axle 9 has the identical shape of outer surface with the chain link 11 of first embodiment.The mode of action of inserting and/or dishing out that has the shuttle seat 5 of spool 7 is identical with first embodiment.

Claims

1. fixture, the shuttle seat (5) that is used for the spool (7) in the creel (1) of Sewing machines, this fixture has a district that holds that can hold spool (7) or shuttle seat (5) in creel (1), and have one shuttle seat (5) or spool (7) be fixed on retainer in the creel (1), and has an axle (9), it is characterized by: retainer is having a groove (21) that is arranged on the creel (1) on the axle (9), simultaneously between the top of axle (9) and shuttle seat (5), a helical spring (17) is arranged, after putting shuttle seat (5), shuttle seat (5) can compression helical spring (17).

2. fixture as claimed in claim 1 is characterized by, with a chain link (11) as retainer, the bottom that chain link (11) is connected with creel (1) have one around groove (21).

3. fixture as claimed in claim 2 is characterized by, have in the bottom of the central hole (13) of shuttle seat (5) one radially inwardly and only part around flange (23).

4. fixture as claimed in claim 3 is characterized by, flange (23) be shaped as crescent.

5. as claim 3 or 4 described fixtures, it is characterized by, be positioned at part around flange (23) and perforation (13) section between the bottom zone of wall section of perforation (13) greater than the diameter of chain link (11).

6. as each described fixture in the claim 3 to 5, it is characterized by, the diameter on chain link (11) top roughly with shuttle seat (5) in perforation (13) equal diameters.

7. as each described fixture in the claim 3 to 6, it is characterized by, the first half of perforation (13) is cylindrical, the regional about 180 ° zone that has flange (23) of Lower Half is also for cylindrical, simultaneously other zone of Lower Half also has cylindrical outer surface, and wherein the axle of cylindrical outer surface presss from both sides into an acute angle with the rotating shaft of spool (7).

8. fixture as claimed in claim 1, it is characterized by, a sleeve (31) that can rotate in central hole (13) is arranged in spool (7), the first half of its middle punch (13) is cylindrical, the regional about 180 ° zone that has flange (23) of Lower Half is also for cylindrical, simultaneously other zone of Lower Half also has cylindrical outer surface, and wherein the axle of cylindrical outer surface presss from both sides into an acute angle with the rotating shaft of spool (7).

9. fixture as claimed in claim 8 is characterized by, be positioned at part around flange (23) and perforation (13) section between the conical region of wall section (b) of perforation (13) greater than around the diameter of chain link (11) of groove (21) top.