GB1213565A – A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
– Google Patents
GB1213565A – A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
– Google Patents
A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
Info
Publication number
GB1213565A
GB1213565A
GB36345/68A
GB3634568A
GB1213565A
GB 1213565 A
GB1213565 A
GB 1213565A
GB 36345/68 A
GB36345/68 A
GB 36345/68A
GB 3634568 A
GB3634568 A
GB 3634568A
GB 1213565 A
GB1213565 A
GB 1213565A
Authority
GB
United Kingdom
Prior art keywords
disc
machine
needle
relay
contact
Prior art date
1967-11-29
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
Application number
GB36345/68A
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.)
Necchi SpA
Original Assignee
Necchi SpA
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.)
1967-11-29
Filing date
1968-07-30
Publication date
1970-11-25
1968-07-30
Application filed by Necchi SpA
filed
Critical
Necchi SpA
1970-11-25
Publication of GB1213565A
publication
Critical
patent/GB1213565A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
D—TEXTILES; PAPER
D05—SEWING; EMBROIDERING; TUFTING
D05B—SEWING
D05B69/00—Driving-gear; Control devices
D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
Abstract
1,213,565. Sewing machines. NECCHI S.p.A. 30 July, 1968 [29 Nov., 1967], No. 36345/68. Heading D1G. A device for stopping a sewing machine with the needle in a predetermined upper position and the sewing threads trimmed comprises needle position control discs 24, 25, 26, 27 on the machine shaft 20 which is coupled by a belt to a movable clutch disc 54 normally spring-biased against a rotary friction disc 41. The letter is coupled via reduction gearing and an electromagnetic clutch 52 and brake 53 to the consttently-revolving shaft of an electric motor driving a rotary friction disc 40. Disc 41 is coupled by a bell crank lever 57 to a treadle 60. As shown, the machine is stationary with the needle down and a brush 73 correspondingly contacting the insulating segment of disc 24, while relays 68, 69 are de-energised with their respective contacts 71, 77, 74 and 70, 76, 78 in the positions shown. When the toe of pedals 60 is partly depressed, disc 54 remains engaged with disc 41 and one arm of lever 57 closes a microswitch 65 to energise relay 68. Contact 74 then shifts to de-energise brake 53 and to energise clutch 52 and the machine runs at slow speed, relay 68 remaining energised via contact 70, the left hand contacts of a microswitch 36 and the contact 71. When the toe of treadle 60 is fully depressed, disc 54 is shifted into engagement with disc 40 for driving the machine at high speed. When the treadle is released, the machine runs at slow speed until brush 73 contacts the insulating segment of disc 24 to stop the machine. If a knee pad 39 is now depressed, microswkch 36 is actuated to close its right hand contacts to energise relay 68 via disc 75, whereby the machine runs slowly until the insulating segment of disc 25 rotates through 270 degrees to engage brush 75 to stop the machine with the needle raised. If it is desired to stop the machine with the needle raisd and simultaneously to sever the thread, pedal 60 is released when the machine is running at high speed and the heel of the pedal is then depressed, whereby lever 57 is deformed and its other arm closes microswitch 64. In consequence, when the machine has slowed down sufficiently, relay 69 is energised via a narrow conducting segment of disc 27. Relay 68 is then energised via contact 70 and disc 25, and relay 69 remains energised via the contact 76, while contact 78 energises solenoids 29 and 32 for respectively releasing thread tension and severing the thread. After energisation of solenoid 69, the machine rotates through 270 degrees until the insulating segment of disc 25 engages brush 75.
GB36345/68A
1967-11-29
1968-07-30
A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
Expired
GB1213565A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT3240567
1967-11-29
Publications (1)
Publication Number
Publication Date
GB1213565A
true
GB1213565A
(en)
1970-11-25
Family
ID=11235323
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB36345/68A
Expired
GB1213565A
(en)
1967-11-29
1968-07-30
A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
Country Status (5)
Country
Link
US
(1)
US3534697A
(en)
CH
(1)
CH477590A
(en)
DE
(1)
DE1811056A1
(en)
FR
(1)
FR1590216A
(en)
GB
(1)
GB1213565A
(en)
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
HU164010B
(en)
*
1970-05-20
1973-12-28
DE102011088177A1
(en)
*
2011-12-09
2013-06-13
Dürkopp Adler AG
sewing machine
CN109267252A
(en)
*
2018-12-13
2019-01-25
杰克缝纫机股份有限公司
Cutting facility and method on a kind of sewing machine for continuously sewing
1968
1968-05-17
CH
CH730668A
patent/CH477590A/en
not_active
IP Right Cessation
1968-07-18
US
US745779A
patent/US3534697A/en
not_active
Expired – Lifetime
1968-07-30
GB
GB36345/68A
patent/GB1213565A/en
not_active
Expired
1968-10-17
FR
FR1590216D
patent/FR1590216A/fr
not_active
Expired
1968-11-26
DE
DE19681811056
patent/DE1811056A1/en
active
Pending
Also Published As
Publication number
Publication date
DE1811056A1
(en)
1969-08-14
US3534697A
(en)
1970-10-20
FR1590216A
(en)
1970-04-13
CH477590A
(en)
1969-08-31
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Legal Events
Date
Code
Title
Description
1971-05-19
PS
Patent sealed [section 19, patents act 1949]
1975-02-26
PLNP
Patent lapsed through nonpayment of renewal fees
