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1. 发明专利

JP2004113431A Sewing machine 有权
公开(公告)号：JP2004113431A
公开(公告)日：2004-04-15
申请号：JP2002280377
申请日：2002-09-26
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： OKAZAKI YOSHIYUKI , MIYAKE KUNIHARU , INAGAKI HIDETAKA
IPC分类号： D05B21/00 , D05B39/00 , D05B73/00 , D05C9/06
CPC分类号： D05B73/00 , D05B21/00
摘要： PROBLEM TO BE SOLVED: To make the structure for guiding a fabric holding frame for holding a textured fabric movably in a prescribed direction compact, and to simplify the structure for guiding the fabric holding frame.
SOLUTION: A movable body 68 for supporting the fabric holding frame for holding the textured fabric is guided by a shuttle shaft 62 stored in a cylinder bed 3 movably forward/backward. As a result, it is not necessary to separately mount a guide member for guiding the movable body 68 forward/backward on the outside of the cylinder bed 3, and therefore, the structure for guiding the movable body 68 forward/backward can be made compact and simplified, so that the embroidery sewing machine can be miniaturized.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004113428A Sewing machine 审中-公开
公开(公告)号：JP2004113428A
公开(公告)日：2004-04-15
申请号：JP2002280374
申请日：2002-09-26
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： OYA KAZUTO , OKAZAKI YOSHIYUKI , MIYAKE KUNIHARU , INAGAKI HIDETAKA
IPC分类号： D05B87/02 , D05B19/02
摘要： PROBLEM TO BE SOLVED: To switch the position of a thread insertion hook to the engagement position where the hook can be engaged with a thread around a thread hole when the thread is not inserted into the thread hole of a sewing needle for holding the hook at the position, and to simplify the structure of a thread insertion mechanism.
SOLUTION: The thread insertion mechanism 55 has the thread insertion hook 120 movable from an engagement position where the hook is inserted into the thread hole to be engaged with a needle thread 57 located around the thread hole to a retreating position where the hook is drawn out of the thread hole. When the needle thread 57 is not inserted into the thread hole by the thread insertion mechanism 55, the thread insertion hook 120 is switched from the retreating position to the engagement position by a switch mechanism 125 and held there. On the other hand, when a thread cassette in which a thread piece is stored is mounted on a cassette mounting part, the thread insertion hook 120 interlocks with the mounting motion of the thread cassette and is switched to the retreating position by the switch mechanism 125.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2000102689A SEWING DEVICE AND BELT TENSIONING TO SEWING DEVICE 失效
公开(公告)号：JP2000102689A
公开(公告)日：2000-04-11
申请号：JP27794998
申请日：1998-09-30
申请人： BROTHER IND LTD
发明人： NAGASAKA SHINSUKE , INAGAKI HIDETAKA , HARA HIDETAKA , OKAMOTO NAOKI
IPC分类号： D05B69/30
摘要： PROBLEM TO BE SOLVED: To develop a mechanism that can simply regulate tension of a belt with teeth thereon built in a sewing machine without any skill. SOLUTION: A tension regulation device 31 is installed in a belt 12 with teeth thereon arranged between upper and lower shaft. The tension regulation device 31 is constituted with a tension roll 32, a support element 33 and a regulation element 35. The support element 33 is rotatable about a shaft 47 while a fix screw 53 is in a loose condition, and is fixed on a fix part 50 of a sewing machine 30 in one body while the fix screw 53 is fastened. A screwdriver is pressed against a drive groove 46 in rear end of the regulation element 35 and is screwed, so the tension roll 32 is moved to change the tension of the belt 12. While the tension of the belt 12 is suitable, the fix screw 53 inserted through a long hole 43 is fastened to fix the support element 33 on the fix part 50 of the sewing machine 30 in one body.

4. 发明专利

JPH119867A FEED DOG HEIGHT POSITION ADJUSTOR FOR SEWING MACHINE 失效
公开(公告)号：JPH119867A
公开(公告)日：1999-01-19
申请号：JP18756697
申请日：1997-06-26
申请人： BROTHER IND LTD
发明人： NAGASAKA SHINSUKE , INAGAKI HIDETAKA , WATARAI KATSUYA
IPC分类号： D05B27/08 , D05B27/24 , D05B37/06
摘要： PROBLEM TO BE SOLVED: To hold the height positions of a main feed dog and a differential feed dog at the same positions after adjustment by enabling not only fine adjustment of the height positions of the feed dogs simply and accurately but also adjustment of the height positions of the main feed dog and the differential feed dog respectively. SOLUTION: A vertically driving mechanism 7 is provided with an oscillating eccentric member 60 of a first adjusting mechanism 8 and an eccentric pin part 66 is rotated centered on a pivot pin 61 by an eccentric mechanism 65 to perform a fine adjustment of the height position of a transmission part 62 of an oscillation transmitting member 60. A second adjusting mechanism 9 capable of adjusting the height position of a main feed dog member 2 is provided so that the height positions of the main feed dog 1 and a differential feed dog 3 can be held at the same positions after the adjustment.

5. 发明专利

JPH119866A DIFFERENTIAL FEEDING DEVICE FOR SEWING MACHINE 失效
公开(公告)号：JPH119866A
公开(公告)日：1999-01-19
申请号：JP18756997
申请日：1997-06-26
申请人： BROTHER IND LTD
发明人： NAGASAKA SHINSUKE , INAGAKI HIDETAKA , WATARAI KATSUYA
IPC分类号： D05B27/08
摘要： PROBLEM TO BE SOLVED: To set a feeding amount at an optimum ratio in response to the stretchability of a cloth which is a sewing objective, perform a cloth feeding wherein a stretch is not generated, and make the finish favorable by providing a differential feeding connecting mechanism which can switch the ratio of the feeding amount of a differential feeding tooth member in a non-step way, based on the feeding amount of a main feeding tooth member. SOLUTION: A differential feeding device wherein a main feeding tooth 1 to feed a cloth which is a sewing objective, and a differential feeding tooth 3 are longitudinally arranged, is equipped with a sliding mechanism 20 which vertically moves a differential feeding tooth member 4 integrally with a main feeding tooth member 2, and at the same time, supports the differential feeding tooth member 4 relatively movably by a specified stroke in the cloth feeding direction, based on the main feeding tooth member 1. Also, a differential feeding connecting mechanism 22 which connects both feeding tooth members 2, 4 in such a manner that a ratio of the feeding amount of the differential feeding tooth member 4 based on the feeding amount of the main feeding tooth member 2 is switchable in a no-step way, is provided. Then, when a cloth with stretchability (stretchable fabric) is sewn, the ratio is switched in such a manner that the ratio of the feeding amount may become larger for a stretchable fabric with a large stretchability, and a cloth feeding wherein a stretch is not generated on the stretchable fabric is made possible.

6. 发明专利

JPH08332293A OVERCASTING SEWING MACHINE 失效
公开(公告)号：JPH08332293A
公开(公告)日：1996-12-17
申请号：JP14031595
申请日：1995-06-07
申请人： BROTHER IND LTD
发明人： INAGAKI HIDETAKA
IPC分类号： D05B1/20 , D05B57/34
摘要： PURPOSE: To simplify the drive of an upper looper and a lower looper and miniaturize a sewing machine. CONSTITUTION: A looper drive cam 5 is rotated when a main spindle l is rotated, a link 7 is rocked centering on a shaft 9 by a groove cam 5a, and a moving member 13 is moved in the right and left directions. An upper looper drive gear 17 is rotated by the rack section 13b of the moving member 13, and an upper looper 25 is rocked via an upper looper shaft 23. A lower looper drive gear 19 is rotated by the rack section 13a, and a lower looper 29 is rocked via a lower looper shaft 27. The upper looper 25 and the lower looper 29 are moved near to or apart from a needle at respective phases and strokes, and overcasting stitches are formed on a fabric.

7. 发明专利

JPH07100278A SEWING-UP MACHINE WITH LINEARLY FEEDING FUNCTION 失效
公开(公告)号：JPH07100278A
公开(公告)日：1995-04-18
申请号：JP25279493
申请日：1993-10-08
申请人： BROTHER IND LTD
发明人： INAGAKI HIDETAKA , NAGASAKA SHINSUKE
IPC分类号： B42B4/00 , D05B27/22
摘要： PURPOSE:To improve the handleability of the sewing-up machine by constituting the machine so that length to be sewn up can be changed at the time of sewing up an object to be worked. CONSTITUTION:When a feeding cam 53 rotates, a feeding plate 57 executes a reciprocating motion in the LR direction and the YZ direction. Subsequently, a contact part of the feeding plate 57 comes into contact with a contact face part 36 of a holder 36, and as feeding plate 57 moves in the Z direction, the holder 36 moves in the Z direction together with the feeding plate 57. Next, after a contactseparates from the contact face part 36, the feeding plate 57 moves in the Y direction, and the holder 36 stops.

8. 发明专利

JPH0691071A HEMSTITCH SEWING MACHINE 失效
公开(公告)号：JPH0691071A
公开(公告)日：1994-04-05
申请号：JP24297292
申请日：1992-09-11
申请人： BROTHER IND LTD
发明人： INAGAKI HIDETAKA
IPC分类号： D05B1/20 , D05B47/02
摘要： PURPOSE:To simplify changing work, and improve sewing quality of a lapping seam by setting tension of upper and lower looper yarns for hemstitches when operation is changed over to the hemstitch sewing side, and setting the tension of the upper and lower looper yarns for the lapping seam when the operation is changed over to the lapping seam sewing side. CONSTITUTION:Yarn tensioners 16, 17 are installed on the right and left of a support shaft 22 of a tension change-over mechanism 18. The yarn tensioner 16 is composed of a pair of tension discs 25, a tension spring 26, and a spring presser member 27, and each part is inserted through the support shaft 22 to slide freely, and held between a standing shoulder part 23 and a lever member 28. An upper looper yarn is guided between the tension discs 25, so that tension is applied to the upper looper yarn. Similarly, at the yarn tensioner 17, tension is applied to a lower looper yarn. As a changing dial 19 is operated to rotate for changing operation, the tension to the upper and lower yarns at the yarn tensioners 16, 17 is set at the optimum tension for hemstitch sewing of lapping seam sewing.

9. 发明专利

JPH01119287A DEVICE FOR UNIFORMING DIAMETER OF BOBBIN FOR THREAD WINDING APPARATUS 失效
公开(公告)号：JPH01119287A
公开(公告)日：1989-05-11
申请号：JP27720987
申请日：1987-10-30
申请人： BROTHER IND LTD
发明人： INAGAKI HIDETAKA
IPC分类号： D05B59/00
摘要： PURPOSE: To uniform the bobbin winding diameter of a thread to be wound by a bobbin thread bobbin between both flange parts by providing a cam body for setting the length of a thread supply path to almost equalize the length of the thread supply path from a thread guide to the bobbin thread bobbin even at any position between both the flange parts. CONSTITUTION: A cam body 28 erected on the thread supply path from a thread guide 20 to a bobbin thread bobbin 24 inserted and attached to a winding shaft 22 is composed of a plate body, with which an arcuate cam face 28a is formed on one vertical side, and vertically supported so as to be turned on the top of a sewing machine frame 10 by a supporting shaft 30 projected on the bottom thereof. The cam face 28a is formed into curved surface most protruding its central part, and made suitable for the case of installing a thread feeding position O at the height located in the middle of both flange parts 24b and 24c of a bobbin thread bobbin 24. With this cam face 28a, the length of the thread supply path for a thread 16 from the thread feeding position O to the bobbin thread bobbin 24 is almost equalized even at any position between both the flange parts 24b and 24c and the bobbin winding diameter of the thread to be wound by the bobbin thread bobbin 24 is uniformed between both the flange parts.

10. 发明专利

JPS6486997A SEWING MACHINE WHICH CAN AUTOMATICALLING CONTROLLING ADJUSTMENT OF THREAD 失效
公开(公告)号：JPS6486997A
公开(公告)日：1989-03-31
申请号：JP24846287
申请日：1987-09-30
申请人： BROTHER IND LTD
发明人： INAGAKI HIDETAKA
IPC分类号： D05B47/04 , D05B45/00 , D05B49/02
摘要： PURPOSE: To fix the amount of a needle thread in a prescribed period and to reduce the colliding sound of both thread engaging bodies generated at the time of restraining a needle thread by releasing and restraining the needle thread while swinging both thread engaging bodies within a prescribed motion range near the maximum thread take-up position of a needle thread take-up. CONSTITUTION: Over the period of about 80 degrees from about 30 degrees to about 110 degrees corresponding to the vicinity of the top position of the needle thread take-up 36, the engaging part 62a of a swing arm 62 is swung upwards in synchronism with the elevating movement of the needle thread take-up 36 and is swung downwards in synchronism with the lowering movement of the needle thread take-up 36. The distance 11 of a thread holding part 36a and the engaging part 62a is fixed and the needle thread amount from a pretension device through the swing arm 62 to the thread holding part 36a is fixed. Also, the swing arm 62 is swung by a driving lever 78, a driven lever 82 and a swing link 84 by the cam groove 74 of a rotary cam 76 fixed to a sewing machine main shaft. The movable wheel 70 of the swing arm 66 is elastically energized to the swing arm 62 by a spring member 72, the state of being abutted to the swing arm 62 is held at all times and impact sound at the time of restraining the needle thread is eliminated.

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