# US 10,370,783 B2 · Binding cord for motor

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- Number: US 10,370,783 B2
- Document ID: US10370783B2
- Status: Granted
- Kind: B2
- Application number: 15/146,543
- Filed: 2016-05-04
- Published: 2016-11-10
- Granted: 2019-08-06
- Earliest claimed: 2015-05-07
- Assignees: Gosen Co., Ltd.
- Applicants: Gosen Co., Ltd.
- Inventors: Atsushi Kinugasa
- Web page: https://patentgrep.com/patent/US10370783B2

## CPC

- D04C 1/02: made from particular materials
- D04C 1/12: Cords, lines, or tows
- B60L 2220/50: Structural details of electrical machines
- Y02T 10/64: Electric machine technologies in electromobility
- D04C: BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE (machines for making soles from strips of material A43D29/00; cane working B27J1/00)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A binding cord for a motor (i) reduces damage to a motor component that is bound with the binding cord, (ii) has high fastening properties when the binding cord is tied, (iii) does not loosen after the binding cord is tied, (iv) prevents fluff from falling off, and (v) is suitable for both mechanical binding and manual binding. A binding cord for a motor of the present invention includes a multifilament yarn made of synthetic fibers. The multifilament yarn is a bulked yarn that has a loop and a slack in the direction of the yarn axis. The multifilament yarn is preferably a non-torque type and processed by a fluid jet. The degree of bulkiness of the multifilament yarn is preferably 1.5 ml/g or more.

## Claims

### Claim 1

A binding cord for a motor, comprising:
a multifilament yarn made of synthetic fibers,
wherein the multifilament yarn is a Taslan finished yarn which is a bulked yarn with loops and bows that are formed of filaments constituting the Taslan finished yarn and protruding from a surface of the yarn,
a degree of bulkiness of the multifilament yarn is at least 2 ml/g, and
high temperature oil resistance of the binding cord expressed by the following formula is 50% or more: High temperature oil resistance (%)=(T′/T)×100,
where T represents a tensile strength of the binding cord before a treatment and T′ represents a tensile strength of the binding cord after the treatment,
the tensile strength T and the tensile strength T′ mean a tensile strength measured in accordance with JIS L1013-8.5.1, and
the treatment includes putting the entire binding cord in a mixture of 0.5 wt % of water and 99.5 wt % of an automatic transmission fluid in a closed container, and heating the container so that the mixture in the container is maintained at 150° C. for 1000 hours.

### Claim 2 (depends on 1)

The binding cord for a motor according to claim 1, wherein the multifilament yarn is processed by a fluid jet.

### Claim 3 (depends on 1)

The binding cord for a motor according to claim 1, wherein the multifilament yarn is made of at least one selected from the group consisting of polyphenylene sulfide fibers, aramid fibers, polyether ether ketone fibers, polyarylate fibers, and heterocyclic polymer (PBO) fibers.

### Claim 4 (depends on 1)

The binding cord for a motor according to claim 1, wherein the binding cord is a braid, and the multifilament yarn constituting the binding cord is an untwisted yarn.

### Claim 5 (depends on 1)

The binding cord for a motor according to claim 1, wherein the binding cord is a braid of 4 to 32 strands.

### Claim 6 (depends on 1)

The binding cord for a motor according to claim 1, wherein the multifilament yarn has a single fiber fineness of 1.5 to 35 dtex and a fineness of 200 to 1500 dtex.

### Claim 7 (depends on 1)

The binding cord for a motor according to claim 1, wherein a mass of the binding cord per unit length is 0.08 to 1.2 g/m.

### Claim 8

A binding cord for a motor, comprising:
a multifilament yarn made of synthetic fibers,
wherein the multifilament yarn is a Taslan finished yarn which is a bulked yarn with loops and bows that are formed of filaments constituting the Taslan finished yarn and protruding from a surface of the yarn,
a degree of bulkiness of the multifilament yarn is at least 2 ml/g, and
the multifilament yarn is made of at least one selected from the group consisting of polyphenylene sulfide fibers, aramid fibers, polyether ether ketone fibers, polyarylate fibers, and heterocyclic polymer (PBO) fibers.

### Claim 9 (depends on 8)

The binding cord for a motor according to claim 8, wherein the multifilament yarn is processed by a fluid jet.

### Claim 10 (depends on 8)

The binding cord for a motor according to claim 8, wherein high temperature oil resistance of the binding cord expressed by the following formula is 50% or more: High temperature oil resistance (%)=(T′/T)×100,
where T represents a tensile strength of the binding cord before a treatment and T′ represents a tensile strength of the binding cord after the treatment,
the tensile strength T and the tensile strength T′ mean a tensile strength measured in accordance with JIS L1013-8.5.1, and
the treatment includes putting the entire binding cord in a mixture of 0.5 wt % of water and 99.5 wt % of an automatic transmission fluid in a closed container, and heating the container so that the mixture in the container is maintained at 150° C. for 1000 hours.

### Claim 11 (depends on 8)

The binding cord for a motor according to claim 8, wherein the binding cord is a braid, and the multifilament yarn constituting the binding cord is an untwisted yarn.

### Claim 12 (depends on 8)

The binding cord for a motor according to claim 8, wherein the binding cord is a braid of 4 to 32 strands.

### Claim 13 (depends on 8)

The binding cord for a motor according to claim 8, wherein the multifilament yarn has a single fiber fineness of 1.5 to 35 dtex and a fineness of 200 to 1500 dtex.

### Claim 14 (depends on 8)

The binding cord for a motor according to claim 8, wherein a mass of the binding cord per unit length is 0.08 to 1.2 g/m.

### Claim 15

A binding cord for a motor, comprising:
a multifilament yarn made of synthetic fibers,
wherein the multifilament yarn is a Taslan finished yarn which is a bulked yarn with loops and bows that are formed of filaments constituting the Taslan finished yarn and protruding from a surface of the yarn,
a degree of bulkiness of the multifilament yarn is at least 2 ml/g, and
the binding cord is a braid, and the multifilament yarn constituting the binding cord is an untwisted yarn.

### Claim 16 (depends on 15)

The binding cord for a motor according to claim 15, wherein the multifilament yarn is processed by a fluid jet.

### Claim 17 (depends on 15)

The binding cord for a motor according to claim 15, wherein high temperature oil resistance of the binding cord expressed by the following formula is 50% or more: High temperature oil resistance (%)=(T′/T)×100,
where T represents a tensile strength of the binding cord before a treatment and T′ represents a tensile strength of the binding cord after the treatment,
the tensile strength T and the tensile strength T′ mean a tensile strength measured in accordance with JIS L1013-8.5.1, and
the treatment includes putting the entire binding cord in a mixture of 0.5 wt % of water and 99.5 wt % of an automatic transmission fluid in a closed container, and heating the container so that the mixture in the container is maintained at 150° C. for 1000 hours.

### Claim 18 (depends on 15)

The binding cord for a motor according to claim 15, wherein the multifilament yarn is made of at least one selected from the group consisting of polyphenylene sulfide fibers, aramid fibers, polyether ether ketone fibers, polyarylate fibers, and heterocyclic polymer (PBO) fibers.

### Claim 19 (depends on 15)

The binding cord for a motor according to claim 15, wherein the braid includes 4 to 32 strands.

### Claim 20 (depends on 15)

The binding cord for a motor according to claim 15, wherein the multifilament yarn has a single fiber fineness of 1.5 to 35 dtex and a fineness of 200 to 1500 dtex.

### Claim 21 (depends on 15)

The binding cord for a motor according to claim 15, wherein a mass of the binding cord per unit length is 0.08 to 1.2 g/m.

### Claim 22

A binding cord for a motor, comprising:
a multifilament yarn made of synthetic fibers,
wherein the multifilament yarn is a Taslan finished yarn which is a bulked yarn with loops and bows that are formed of filaments constituting the Taslan finished yarn and protruding from a surface of the yarn,
a degree of bulkiness of the multifilament yarn is at least 2 ml/g, and
the binding cord is a braid of 4 to 32 strands.

### Claim 23 (depends on 22)

The binding cord for a motor according to claim 22, wherein the multifilament yarn is processed by a fluid jet.

### Claim 24 (depends on 22)

The binding cord for a motor according to claim 22, wherein high temperature oil resistance of the binding cord expressed by the following formula is 50% or more: High temperature oil resistance (%)=(T′/T)×100,
where T represents a tensile strength of the binding cord before a treatment and T′ represents a tensile strength of the binding cord after the treatment,
the tensile strength T and the tensile strength T′ mean a tensile strength measured in accordance with JIS L1013-8.5.1, and
the treatment includes putting the entire binding cord in a mixture of 0.5 wt % of water and 99.5 wt % of an automatic transmission fluid in a closed container, and heating the container so that the mixture in the container is maintained at 150° C. for 1000 hours.

### Claim 25 (depends on 22)

The binding cord for a motor according to claim 22, wherein the multifilament yarn is made of at least one selected from the group consisting of polyphenylene sulfide fibers, aramid fibers, polyether ether ketone fibers, polyarylate fibers, and heterocyclic polymer (PBO) fibers.

### Claim 26 (depends on 22)

The binding cord for a motor according to claim 22, wherein the multifilament yarn constituting the binding cord is an untwisted yarn.

### Claim 27 (depends on 22)

The binding cord for a motor according to claim 22, wherein the multifilament yarn has a single fiber fineness of 1.5 to 35 dtex and a fineness of 200 to 1500 dtex.

### Claim 28 (depends on 22)

The binding cord for a motor according to claim 22, wherein a mass of the binding cord per unit length is 0.08 to 1.2 g/m.