Sewing machine and thread spool device

Patent metadata

Field	Value
Publication number	US-10000871-B2
Application number	US-201514846542-A
Country	US
Kind code	B2
Filing date	Sep 4, 2015
Priority date	Sep 24, 2014
Publication date	Jun 19, 2018
Grant date	Jun 19, 2018

Abstract

A sewing machine includes a first thread spool base having a first thread spool pin and a first guide member, and a second thread spool base having a second thread spool pin and a second guide member. The first thread spool pin is inserted into a through hole of a thread spool. The first guide member has a first thread guard portion that guides a needle thread delivered from a thread spool mounted on the first thread spool base to the sewing machine. The second thread spool base can be attached to and removed from the first thread spool base. The second thread spool pin is inserted into a through hole of the thread spool. The second guide member has a second thread guard portion that guides a needle thread delivered from the thread spool mounted on the second thread spool base to the sewing machine.

First claim

What is claimed is:

1. A sewing machine comprising:
a first thread spool base that is configured such that a thread spool is mounted thereon, the first thread spool base having a box-shape that has an upper surface and a rear surface;
a first engaging portion that is provided on the rear surface of the first thread spool base;
a first thread spool pin that is provided on the first thread spool base and is configured to be inserted into a through hole of the thread spool mounted on the first thread spool base, the first thread spool pin extending upward from the upper surface of the first thread spool base;
a first guide member that is provided in the first thread spool base and has a first thread guard portion, the first thread guard portion being configured to guide a needle thread delivered from the thread spool mounted on the first thread spool base to the sewing machine;
a second thread spool base that is configured to be capable of being attached to and removed from the first thread spool base and is configured such that a thread spool is mounted thereon, the second thread spool base having a box-shape having an upper surface and a front surface;
a first engaged portion that is provided on the front surface of the second thread spool base, the first engaged portion being capable of being engaged with and disengaged from the first engaging portion in a state in which the front surface of the second thread spool base faces the rear surface of the first thread spool base in front-rear direction;
a second thread spool pin that is provided on the second thread spool base and is configured to be inserted into a through hole of the thread spool mounted on the second thread spool base, the second thread spool pin extending upward from the upper surface of the second thread spool base; and
a second guide member that has a second thread guard portion, the second thread guard portion being configured to guide a needle thread delivered from the thread spool mounted on the second thread spool base to the sewing machine.

2. The sewing machine according to claim 1 , wherein
the second guide member is configured to be capable of being attached to and removed from the first guide member.

3. The sewing machine according to claim 2 , wherein
when the second thread spool base is attached to the first thread spool base and the second guide member is attached to the first guide member, the second thread guard portion is disposed to correspond to the second thread spool pin at a position that is on an extension line of a center line of the second thread spool pin and that is separated from the second thread spool pin.

4. The sewing machine according to claim 2 , wherein
the first guide member is provided with a bar-shaped support pillar and a guide portion, the support pillar extending upward, one end side of the support pillar being fixed to the upper surface of the first thread spool base, another end side of the support pillar being fixed to the guide portion, the guide portion including the first thread guard portion,
the guide portion of the first guide member is provided with a second engaging portion, and
the second guide member is provided with a second engaged portion, the second engaged portion being capable of being engaged with and disengaged from the second engaging portion.

5. The sewing machine according to claim 4 , wherein
of the first engaging portion and the first engaged portion, one is a protruding portion and the other is a hole portion into which the protruding portion is inserted so as to be engaged therewith.

6. The sewing machine according to claim 1 , further comprising:
a first holding member that is provided on the first guide member and is configured to hold the needle thread delivered from the thread spool mounted on the first thread spool base; and
a second holding member that is provided on the second guide member and is configured to hold the needle thread delivered from the thread spool mounted on the second thread spool base.

7. The sewing machine according to claim 1 , further comprising:
a cutting member that is provided in the first guide member and is configured to cut the needle thread.

8. The sewing machine according to claim 1 , further comprising:
an arm that is provided with an engaging hole on an upper surface, wherein
the first thread spool base is provided on the upper surface of the arm, and
the second thread spool base is provided with a protruding portion, the protruding portion protrudes downward from an lower surface of the second thread spool base and engages with the engaging hole of the arm.

9. A thread spool device comprising:
a first thread spool base that is configured such that a thread spool is mounted thereon, the first thread spool base having a box-shape that has an upper surface and a rear surface;
a first engaging portion that is provided on the rear surface of the first thread spool base;
a first thread spool pin that is provided on the first thread spool base and is configured to be inserted into a through hole of the thread spool mounted on the first thread spool base, the first thread spool pin extending upward from the upper surface of the first thread spool base;
a first guide member that is provided in the first thread spool base and has a first thread guard portion, the first thread guard portion being configured to guide a needle thread delivered from the thread spool mounted on the first thread spool base to the sewing machine;
a second thread spool base that is configured to be capable of being attached to and removed from the first thread spool base and is configured such that a thread spool is mounted thereon, the second thread spool base having a box-shape having an upper surface and a front surface;
a first engaged portion that is provided on the front surface of the second thread spool base, the first engaged portion being capable of being engaged with and disengaged from the first engaging portion in a state in which the front surface of the second thread spool base faces the rear surface of the first thread spool base in front-rear direction;
a second thread spool pin that is provided on the second thread spool base and is configured to be inserted into a through hole of the thread spool mounted on the second thread spool base, the second thread spool pin extending upward from the upper surface of the second thread spool base; and
a second guide member that has a second thread guard portion, the second thread guard portion being configured to guide a needle thread delivered from the thread spool mounted on the second thread spool base to the sewing machine.

10. The thread spool device according to claim 9 , wherein
the second guide member is configured to be capable of being attached to and removed from the first guide member.

11. The thread spool device according to claim 10 , wherein
when the second thread spool base is attached to the first thread spool base and the second guide member is attached to the first guide member, the second thread guard portion is disposed to correspond to the second thread spool pin at a position that is on an extension line of a center line of the second thread spool pin and that is separated from the second thread spool pin.

12. The thread spool device according to claim 10 , wherein
the first guide member is provided with a bar-shaped support pillar and a guide portion, the support pillar extending upward, one end side of the support pillar being fixed to the upper surface of the first thread spool base, another end side of the support pillar being fixed to the guide portion, the guide portion including the first thread guard portion,
th

Assignees

• Brother Ind Ltd

Inventors

• Komada Midori
• Matsushita Hironori

Classifications

• D05C11/00

  Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor · CPC title

• D05B43/00 Primary

  Spool-pin assemblies incorporated in sewing machines · CPC title