Presser foot device for sewing machine
US5749311A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1996 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Aug 1, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B29/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A presser foot device comprises a presser foot shank 2! which has clamp member through holes 2d! for guiding clamp members in moving forward and backward formed at the lower portion thereof and a groove for receiving the hinge pin 3b! of a presser foot plate 3! formed on the lower surface of the front side thereof and a groove 2a! for receiving the hinge pin 3b! of a presser foot plate 3! therein formed on the lower surface of the front side thereof, and which is detachably attached to a presser bar 5,! an elastic 9! member which is fixed to the rear portion of the presser foot shank 2! at one end portion thereof, and the clamp members 7! each having a hook portion 7a! for retaining the hinge pin 3b! of the presser foot plate 3! at the tip end portion thereof, wherein the hinge pin 3b! of the presser foot plate 3! is elastically clamped by the hook portions 7a! of the clamp members 7! and the rear wall 2c! of the groove 2a!. As a result, it is possible to provide a presser foot device simple in structure, superior in reliability with regard to the essential function of a presser foot plate, and superior in durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.