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US 10,801,144 B2Granted
Hollow pipe joint structure for a sewing machine
OwnerHsien-Chang Tsenginventor
Life of this patent
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Abstract
A hollow pipe joint structure for a sewing machine includes a first hollow pipe, a second hollow pipe and an elastic member. The elastic member is sleeved onto the first hollow pipe and the second hollow pipe, and elastically squeezes against the first outer surface and the second outer surface of the first and second hollow pipes, respectively, to pull the first and second hollow pipes against each other, which makes assembly of the hollow pipes easier, quicker and no frequent maintenance is required.
Claims5
A hollow pipe joint structure for a sewing machine, comprising:
- a first hollow pipe including a first insertion hole and a first outer surface;
- a second hollow pipe including a second insertion hole and a second outer surface, wherein the first hollow pipe is inserted in the second insertion hole to connect the first insertion hole to the second insertion hole;
- and
- an elastic member sleeved onto the first hollow pipe and the second hollow pipe to elastically squeeze against the first outer surface and the second outer surface;
- wherein the elastic member includes a first elastic section elastically squeezing against the first outer surface, and a second elastic section elastically squeezing against the second outer surface, the first hollow pipe includes an insertion section and an exposed section connected to the insertion section, the exposed section has a first outer diameter, the second hollow pipe has a second outer diameter equal to the first outer diameter, the first elastic section has a first elastic-member inner diameter, the second elastic section has a second elastic-member inner diameter, the second elastic-member inner diameter is equal to the first elastic-member inner diameter, the insertion section has a diameter smaller than the first outer diameter and is inserted in the second insertion hole.
2 more elements
Dependencies are inferred from the claim text.