Sewing needle holding device

Patent metadata

Field	Value
Publication number	US-2022074096-A1
Application number	US-201917417779-A
Country	US
Kind code	A1
Filing date	Nov 6, 2019
Priority date	Dec 28, 2018
Publication date	Mar 10, 2022
Grant date	—

Abstract

This sewing needle holding device (10) is provided with: a holder (24) which holds the base end side of a sewing needle (14) provided with, from the leading end side toward the base end side in the extension direction, a small diameter portion (16), an outer diameter varying portion (20a), and a large diameter portion (18); and a presser member (26) which is mounted to the holder (24). The holder (24) causes at least the small diameter portion (16) and the outer diameter varying portion (20a) of the sewing needle (14) to protrude from a holder leading-end surface (34). The presser member (26) has a counter portion (46) that faces the holder leading-end surface (34). The counter portion (46) has formed therein an insertion hole (50) through which the small diameter portion (16) can be inserted. At least a part of the insertion hole (50) is provided with a pressure-receiving surface (52) that comes into abutment with the outer diameter varying portion (20a).

First claim

What is claim is:

1 . A sewing needle holding device that holds a sewing needle having a small-diameter portion disposed on a distal side in a direction in which the sewing needle extends, a large-diameter portion disposed on a proximal side and having a larger diameter than the small-diameter portion, and a varying-outer-diameter portion disposed between the small-diameter portion and the large-diameter portion,
the sewing needle holding device comprising a holder configured to hold the proximal side of the sewing needle, and a presser member attached to the holder, wherein the holder allows at least the varying-outer-diameter portion and the small-diameter portion of the sewing needle to protrude from a holder distal end surface of the holder, and the presser member has an opposing portion that opposes the holder distal end surface, the opposing portion being provided with an insertion hole allowing the small-diameter portion to be inserted therethrough, and at least part of the insertion hole forms a pressure receiving surface that comes in contact with the varying-outer-diameter portion.

2 . The sewing needle holding device according to claim 1 , wherein the varying-outer-diameter portion is formed as a tapered portion whose diameter increases from the small-diameter portion toward the large-diameter portion.

3 . The sewing needle holding device according to claim 1 , further comprising a pressurizing mechanism configured to apply a pressurizing force to the holder and the presser member in a direction to place the holder distal end surface and the opposing portion close to each other.

4 . The sewing needle holding device according to claim 3 , wherein
the presser member has a side portion extending along a side of the holder, the side portion is provided with a through hole passing through the side portion along the direction in which the sewing needle extends, the pressurizing mechanism includes a male screw member and a female screw member, the male screw member includes a male screw shank that is inserted into the through hole from a distal side of the side portion, and a male screw head that is formed integrally with the male screw shank, the female screw member includes a hollow female screw shank that is inserted into the through hole from a proximal side of the side portion and that has a female thread formed therein to be engaged with the male screw shank, and a female screw head that is formed integrally with the female screw shank, and inside the through hole, the male screw shank is screwed into the female screw shank so as to apply the pressurizing force to the holder and the presser member between the male screw head and the female screw head that are placed close to each other.

5 . The sewing needle holding device according to claim 4 , wherein the side portion is formed of a set of side portions that oppose each other, with the holder interposed therebetween, in a direction that is orthogonal to the direction in which the sewing needle extends.

6 . The sewing needle holding device according to claim 1 , wherein
the holder is provided with a fitting hole which has a bottom and into which the proximal side of the sewing needle is inserted, and a screw hole extending along a direction intersecting the fitting hole so as to allow the fitting hole to communicate with an outer side of the holder, and the proximal side of the sewing needle is held between a setscrew screwed into the screw hole and an inner wall surface of the fitting hole.

7 . The sewing needle holding device according to claim 6 , wherein the sewing needle has a proximal end surface that comes in contact with an inner bottom surface of the fitting hole when the sewing needle is held in the holder.

Assignees

• Honda Motor Co Ltd

Inventors

• Takamura Tohru
• Ikadai Yosuke
• Igaue Mitsutaka
• Hirano Noboru
• Miyamoto Hajime

Classifications

• D05B55/02 Primary

  Devices for fastening needles to needle bars · CPC title

• D05B29/06

  Presser feet · CPC title