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公开(公告)号：US3685473A
公开(公告)日：1972-08-22
申请号：US3685473D
申请日：1970-08-28
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
CPC classification number: D05B77/00
Abstract: A sewing machine has a frame formed of a base, a column, a lower free arm having an upper working surface, an upper arm and a head. A retractable shelf is connected to the base by a set of articulated parts comprising panels hinged to three sides of the shelf and arms pivoted to the base at one end and articulated to an intermediate point along the height of each panel at the other end. The shelf is displaceable between an operative level in which it fits around the lower free arm at the working surface thereof and a retracted level below the lower free arm to allow access thereto. Flaps are also hinged to the shelf and can, when the shelf is at the operative level, be folded in line with the panels against the frame to form a case therewith. In both operative and inoperative levels of the shelf, the flaps can be folded down to allow access to the machine for operation thereof.
Abstract translation: 缝纫机具有由基部，柱，具有上工作表面，上臂和头部的下自由臂形成的框架。 可伸缩搁架通过一组铰接部件连接到基座，铰接部件包括铰接到搁架的三侧的面板，并且在一端枢转到基座的臂，并且在另一端沿着每个面板的高度铰接到中间点。 搁架可在其工作水平之间移动，其中工作水平在其工作表面处配合在下自由臂周围，并且在下自由臂下方的缩回水平位置能够接近。 襟翼也铰接到搁板上，并且当搁板处于工作水平时，可以将折叠线与面板折叠成框架以形成一个壳体。 在搁板的操作和非操作水平中，襟翼可以向下折叠以允许进入机器以进行操作。
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公开(公告)号：US3587500A
公开(公告)日：1971-06-28
申请号：US3587500D
申请日：1969-04-22
Applicant: MEFINA SA
Inventor： FRESARD MARCEL , PLOMB FRANCIS
CPC classification number: D05B77/00
Abstract: A SEWING MACHINE BASE COMPRISES TWO LONGITUDINAL SUPPORTS THAT ENABLE THE FREE LOWER ARM TO BE SET NEARER THE TABLE SURFACE. TWO SIDE FLAPS HINGED TO THESE SUPPORTS BY MEANS OF SIDE PANELS CAN TAKE ONE POSITION IN WHICH THEY ENLARGE THE
FREE ARM UPPER FACE AND ANOTHER POSITION IN WHICH THEY COMPLETELY EXPOSE THE FREE ARM.-
公开(公告)号：US3570430A
公开(公告)日：1971-03-16
申请号：US3570430D
申请日：1969-03-10
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
CPC classification number: D05B77/00
Abstract: A sewing machine accessory is provided with two side flaps and a front flap and also has a flat top surface which cooperates with the upper face of the free lower arm of the sewing machine when the accessory is slipped thereon, to thereby provide an enlarged work surface. The flaps can be raised to enclose the machine when it is not in use.
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公开(公告)号：US3561383A
公开(公告)日：1971-02-09
申请号：US3561383D
申请日：1969-03-11
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
CPC classification number: D05B77/00
Abstract: A sewing machine has two flaps hinged on respective sides of the free lower arm of the machine so that when the flaps are raised, they enclose the head of the machine and when they are lowered, they expose the head for use. The hinge means of each flap is slidable in a related groove extending along the upper face of the lower arm and into the pedestal so that each of the flaps can be slid away from the end of the free lower arm to permit tubular pieces of material to be slipped over said arm and have a sewing operation performed thereon.
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公开(公告)号：US3570431A
公开(公告)日：1971-03-16
申请号：US3570431D
申请日：1969-03-10
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
CPC classification number: D05B77/00
Abstract: Two wing members that enlarge the upper face of the free lower arm of the sewing machine can be swung out of the way, along with any auxiliary parts enclosing said arm, to expose the arm for sewing tubular pieces.
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Patent Agency Ranking
公开(公告)号：US3553506A
公开(公告)日：1971-01-05
申请号：US3553506D
申请日：1968-10-31
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
Abstract: Two internally threaded electrically insulating sleeves are mounted in respective holes in the motor housing. Screws, passing through respective holes in respective feet of a bracket rigid with the sewing machine casing, are threaded into a respective sleeve. Each sleeve includes a flange and lip to ensure electrical insulation between the housing and bracket and to prevent the sleeve from turning with the motor as the latter is swung about the axle composed of the screws and sleeves.
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公开(公告)号：US3492958A
公开(公告)日：1970-02-03
申请号：US3492958D
申请日：1968-06-28
Applicant: MEFINA SA
Inventor： FRESARD MARCEL , JEMENEZ ANTONIO
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8.发明授权Variable-resistance foot control device, for regulating the speed of an electric motor 失效用于调节电动机转速的变阻器脚控制装置
公开(公告)号：US3639877A
公开(公告)日：1972-02-01
申请号：US3639877D
申请日：1970-05-07
Applicant: MEFINA SA
Inventor： FRESARD MARCEL , DONNAT JEAN-CHARLES
Abstract: A variable-resistance foot control device for regulating the speed of an electric motor is particularly useful for sewing machines. It has a casing containing the variable-resistance element and a speed selection slider. The actuating member comprises a cover which pivots on a vertical axle against the action of a return spring which is fixed between the casing and said axle. The casing has a peripheral collar which the skirt of the cover surrounds and an annular support surface provided on the inside of the cover faces the collar. The slider is carried by a hinged lever actuated by turning the foot on the cover, whereby a pin and groove mechanism pivots the lever and moves the slider into contact with the contact points on the variableresistance element.
Abstract translation: 用于调节电动机速度的可变阻力脚踏控制装置对于缝纫机特别有用。 它具有包含可变电阻元件的壳体和速度选择滑块。 致动构件包括抵靠固定在壳体和轴之间的复位弹簧的作用在竖直轴上枢转的盖。 壳体具有周边套环，其外壳的裙部围绕并且设置在盖的内侧上的环形支撑表面面向套环。 滑块由铰接杆承载，该铰接杆通过将脚转动在盖上而致动，由此销和槽机构使杠杆枢转并使滑动件与可变电阻元件上的接触点接触。
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公开(公告)号：US3570432A
公开(公告)日：1971-03-16
申请号：US3570432D
申请日：1969-04-15
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
CPC classification number: D05B77/00
Abstract: A free-arm type sewing machine is provided with a pair of side flaps and an end flap which are pivotally connected to a troughlike member integral with the sewing machine base and spaced from the free lower arm. In their uppermost position the flaps are retained against the head and upper arm of the machine to form an enclosure for the head and sides of the upper arm. The two side flaps are free to slide and pivot in a hinge arrangement so that they can be lowered and their upper angularly bent edges can either be placed adjacent the side edges of the free lower arm to form an enlarged work surface or be pulled away from the arm to expose the latter for the sewing of tubular pieces.
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公开(公告)号：US3545392A
公开(公告)日：1970-12-08
申请号：US3545392D
申请日：1968-11-08
Applicant: MEFINA SA
Inventor： FRESARD MARCEL
IPC: D05B49/00
CPC classification number: D05B49/00 , D05D2209/12
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