IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0811333
(2017-11-13)
|
| 등록번호 |
US-10245881
(2019-04-02)
|
|
발명자
/ 주소 |
- Khangar, Abhijeet A.
- Gongola, Andrew G.
- Hoppe, Christopher S.
- Steele, Michael S.
- Nelson, Collin J.
- Schneider, Daniel H.
- Neitzell, Roger D.
- Hyma, Steven W.
|
| 출원인 / 주소 |
- Milwaukee Electric Tool Corporation
|
| 대리인 / 주소 |
Reinhart Boerner Van Deuren s.c.
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
124 |
초록
▼
A chalk line device includes a housing, a spool, a chalk line, a hook, and a cap. The housing defines an outer surface and an internal chamber, and the housing includes an opening. The spool is supported in the internal chamber for rotation relative to the housing. The chalk line extends through the
A chalk line device includes a housing, a spool, a chalk line, a hook, and a cap. The housing defines an outer surface and an internal chamber, and the housing includes an opening. The spool is supported in the internal chamber for rotation relative to the housing. The chalk line extends through the opening of the housing and the chalk line includes a first end and a second end. At least a portion of the chalk line is wrapped around the spool. The hook is secured to the first end of the chalk line and includes a tip adapted to engage a work piece. The cap is removably coupled to the housing to cover the opening. The cap includes a nozzle through which the chalk line extends and a projection for engaging and releasably securing the hook against the cap.
대표청구항
▼
1. A chalk line device comprising: a housing defining an outer surface and an internal chamber for containing a marking material, the housing including an opening;a spool supported in the internal chamber for rotation relative to the housing;a chalk line extending through the opening of the housing,
1. A chalk line device comprising: a housing defining an outer surface and an internal chamber for containing a marking material, the housing including an opening;a spool supported in the internal chamber for rotation relative to the housing;a chalk line extending through the opening of the housing, the chalk line including a first end and a second end, at least a portion of the chalk line wrapped around the spool, the chalk line being formed of a polyester blend that includes approximately 16 braided strands; anda hook secured to the first end of the chalk line and including a tip adapted to engage a work piece. 2. The chalk line device of claim 1, wherein the chalk line has a diameter between approximately 1.05 mm and approximately 1.15 mm. 3. The chalk line device of claim 1, wherein the chalk line has a minimum tensile force of approximately 40 lb-f. 4. A chalk line device comprising: a housing defining an outer surface and an internal chamber, the housing including an opening;a spool supported in the internal chamber for rotation relative to the housing about a spool axis;a chalk line extending through the opening of the housing, at least a portion of the chalk line wrapped around the spool;a drive mechanism for rotating the spool, the drive mechanism including a gear member, the gear member directly coupled to the spool at a spool interface, the gear member transmitting a torque to the spool to rotate the spool; anda clutch mechanism for selectively uncoupling the gear member from the spool at the spool interface when a torque transmitted by the gear member to the spool exceeds a predetermined threshold. 5. The chalk line device of claim 4, wherein the clutch mechanism includes a jaw clutch engagement formed between the gear member and the spool. 6. The chalk line device of claim 4, wherein the gear member slips relative to the spool when the torque exceeds a predetermined threshold. 7. The chalk line device of claim 4, wherein the gear member includes a first end and a second end, the gear member rotatable about a gear axis extending between the first end and the second end, the gear member including a gear surface positioned proximate the first end, wherein the clutch mechanism includes a clutch positioned on the second end of the gear member and engaging an outer surface of the spool. 8. The chalk line device of claim 7, wherein the clutch includes sliding jaw surfaces and the outer surface of the spool includes driven jaw surfaces in contact with the sliding jaw surfaces, wherein the sliding jaw surfaces form an acute angle relative to the gear axis such that the sliding jaw surfaces slip relative to the driven jaw surfaces when the torque transmitted by the gear member exceeds the predetermined threshold. 9. The chalk line device of claim 7, further comprising a spring biasing the sliding jaw surface along the gear axis and into engagement with the driven jaw surfaces. 10. The chalk line device of claim 4, wherein the drive mechanism includes a ring gear and at least one planet gear, each planet gear positioned between the ring gear and the gear member to transmit torque to the gear member. 11. The chalk line device of claim 4, wherein the internal chamber houses a chalk material for adhering to the chalk line, wherein the housing further includes a partition wall having a first side adjacent the internal chamber and a second side opposite the first side, wherein at least a portion of the drive mechanism is positioned on the second side. 12. The chalk line device of claim 11, wherein the gear member extends through the partition wall such that first end of the gear member is positioned proximate the first side of the partition wall and a second end of the gear member is positioned proximate the second side of the partition wall. 13. The chalk line device of claim 4, further comprising a lever for applying an input torque on the gear member. 14. A chalk line device comprising: a housing defining an outer surface and an internal chamber for containing a marking material, the housing including an opening;a spool supported in the internal chamber for rotation relative to the housing;a chalk line extending through the opening of the housing, the chalk line including a first end and a second end, at least a portion of the chalk line wrapped around the spool, the chalk line being formed of a polyester blend that includes multiple braided strands, wherein the chalk line includes between approximately 26 and approximately 34 picks per inch; anda hook secured to the first end of the chalk line and including a tip adapted to engage a work piece.
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