Presser foot position retainer and sewing machine including presser foot position retainer

Patent metadata

Field	Value
Publication number	US-12116708-B2
Application number	US-202318189714-A
Country	US
Kind code	B2
Filing date	Mar 24, 2023
Priority date	Mar 30, 2022
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

A presser foot position retainer includes a presser foot and a restricting member. The presser foot is swingably attachable to a presser holder of a sewing machine. The presser foot includes a shaft extending in an axial direction, a restricted portion, and a pressing surface configured to press a workpiece. The restricting member includes a restricting portion capable of contacting the restricted portion. The restricting member is attachable to the presser holder. The restricting member is configured to move between a first position and a second position by a user operation. When the restricting member is located at the second position, the restricting portion is in contact with the restricted portion to limit a swingable range within which the presser foot attached to the presser holder is swingable about the shaft to less than that when the restricting member is located at the first position.

First claim

What is claimed is:

1. A presser foot position retainer, comprising:
a presser foot swingably attachable to a presser holder of a sewing machine, the presser foot including a shaft extending in an axial direction, a restricted portion, and a pressing surface configured to press a workpiece; and
a restricting member including a restricting portion capable of contacting the restricted portion, the restricting member being attachable to the presser holder,
wherein the restricting member is configured to move between a first position and a second position by a user operation, wherein when the restricting member is located at the second position, the restricting portion is in contact with the restricted portion to limit a swingable range within which the presser foot attached to the presser holder is swingable about the shaft to less than that when the restricting member is located at the first position.

2. The presser foot position retainer according to claim 1 ,
wherein when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the second position, the restricting portion and the restricted portion are in contact with each other to restrict a swinging of the restricted portion in a first direction from the shaft toward the pressing surface.

3. The presser foot position retainer according to claim 2 ,
wherein when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the first position, the restricting portion and the restricted portion are spaced from each other.

4. The presser foot position retainer according to claim 2 ,
wherein the restricted portion has a hook shape,
wherein the restricting portion has a hook shape, and
wherein when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the second position, the restricted portion and the restricting portion are in engagement with each other.

5. The presser foot position retainer according to claim 4 ,
wherein when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the first position, the restricting portion and the restricted portion are not in engagement with each other.

6. The presser foot position retainer according to claim 1 ,
wherein the restricting member is supported by the presser holder via a pin, and is movable between the first position and the second position by rotating about the pin.

7. The presser foot position retainer according to claim 6 ,
wherein the pin extends parallel to the shaft.

8. The presser foot position retainer according to claim 2 ,
wherein the restricting member further includes a projecting portion contactable to the restricted portion when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the second position, and
wherein when the projecting portion is in contact with the restricted portion, the restricting portion restricts a swinging of the restricting portion in a second direction opposite to the first direction.

9. The presser foot position retainer according to claim 6 ,
wherein the restricting member includes an operation portion being disposed opposite to the restricting portion with respect to the pin, the operation portion being operable by a user to move the restricting member between the first position and the second position.

10. The presser foot position retainer according to claim 1 ,
wherein the restricted portion includes a contact portion extending parallel to the pressing surface, the contact portion being in contact with the restricting portion when the presser foot position retainer is attached to the sewing machine and the restricting member is located at the second position.

11. The presser foot position retainer according to claim 1 ,
wherein the presser foot includes a pair of the regulated portions spaced apart from each other in the axial direction,
wherein the restricting member includes a pair of the restricting portions spaced apart from each other in the axial direction and corresponding to the pair of the regulated portions, and wherein when the restricting member is located at the second position, the restricting portions are in contact with the restricted portions, respectively, to limit the swingable range within which the presser foot attached to the presser holder is swingable about the shaft to less than that when the restricting member is located at the first position.

12. The presser foot position retainer according to claim 1 ,
wherein the restricting member further includes:
a pair of wall portions; and
a connecting portion connecting the wall positions to each other in the axial direction, and

wherein the restricting member is attached to the presser holder while the presser holder is positioned between the wall portions in the axial direction.

13. The presser foot position retainer according to claim 2 ,
wherein the restricting member further includes:
a pair of wall portions; and
a pair of connecting portions spaced from each other in a third direction including the first direction and the second direction, the pair of connecting portions connecting the wall positions to each other in the axial direction, and

wherein the restricting member is attached to the presser holder while the presser holder is positioned between the wall portions in the axial direction and between the connecting portions in the third direction.

14. The presser foot position retainer according to claim 1 ,
wherein the presser foot includes:
a pressing plate having the pressing surface; and
a restricted member including the restricted portion and detachably attachable to the pressing plate.

15. The presser foot position retainer according to claim 1 ,
wherein the presser foot includes:
a pressing plate including the pressing surface, the shaft, and a guide spaced apart from the shaft in a longitudinal direction of the presser foot; and
a restricted member detachably attachable to the pressing plate, the restricted member including:
a pair of shaft engagement portions disengageably engageable with the shaft, the shaft engagement portions being spaced apart from each other in the axial direction; and
a pair of guide engagement portions disengageably engageable with the shaft, the guide engagement portions being spaced apart from each other in the axial direction.

16. The presser foot position retainer according to claim 15 ,
wherein the guide has a rod-like shape,
wherein each of the pair of guide engagement portions has a cutout, and
wherein engagement of the pair of guide engagement portions with the guide via the cutouts enables the restricted member to be attached to the pressing plate.

17. The presser foot position retainer according to claim 15 ,
wherein the guide has a threaded portion,
wherein at least one of the pair of guide engagement portions has a threaded hole into which the threaded portion of the guide is screwed, and
wherein engagement of the threaded portion of the guide with the threaded hole of the at least one of the pair of guide portion engagement portions enables the restricted member to be attached to the pressing plate.

18. The presser foot position retainer according to claim 6 ,
wherein the presser holder has a hole, and
wherein the restricting member is detachably attached to the presser holder by the pin inserted through the hole of the presser holder.

19

Assignees

• Brother Ind Ltd

Inventors

• Matsushita Hironori
• Funato Nobuhiko

Classifications

• D05B29/12

  Presser-foot attachment · CPC title

• D05B29/08

  comprising relatively-movable parts · CPC title

• D05B29/02 Primary

  Presser-control devices · CPC title