Fixture for piping

Patent metadata

Field	Value
Publication number	US-9835286-B2
Application number	US-201514619532-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Mar 26, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A fixture for piping includes a fitting. The fitting includes a base, and a locking tab. The locking tab has an end fixed onto the base, and one or more folding sections. The locking tab is formed as a folding configuration folded twice or more, and is further formed so as to be inclinable by elastic deformation about the end and the one or more folding sections serving as a fulcrum, respectively, thereby being locked up with a hole in a vehicle body.

First claim

What is claimed is:

1. A fixture for piping and for fixing the piping onto a vehicle body, the fixture being made of resin and comprising:
a fixture body installed onto the piping; and
a fitting, integral with the fixture body, that is fitted into a hole in the vehicle body so that the fitting is exposed outside the vehicle body, the fitting including:
a base;
a locking tab having a first end fixed onto the base, having one or more folding sections, and being inclinable by elastic deformation about the first end and the one or more folding sections serving as fulcrums to thereby be locked up with the hole in the vehicle body;
a pillar erected onto the base and projecting from the hole to the outside of the vehicle body; and
a guard disposed on the pillar and located farther from the base than the locking tab, wherein:

the pillar is spaced apart from the locking tab in a state where (i) the fitting is fitted in the hole of the vehicle body and (ii) the locking tab is not inclined about its first end that serves as one of the fulcrums; and
when the fitting is fitted in the hole and relatively moves in a direction that is perpendicular to a penetration direction of the hole of the vehicle body, a second end of the locking tab comes into contact with the first end of the locking tab to inhibit the vehicle body from moving toward the fitting beyond a predetermined magnitude in the direction that is perpendicular to the penetration direction of the hole of the vehicle body.

2. The fixture according to claim 1 , wherein the guard inhibits the locking tab from moving away from the base beyond a predetermined magnitude.

3. The fixture according to claim 1 , wherein:
the locking tab includes a first element; and
the pillar inhibits the first element from inclining beyond a predetermined magnitude when the first element inclines about the first end of the locking tab serving as one of the fulcrums.

4. The fixture according to claim 3 , wherein:
the fitting includes two locking tabs and a single pillar;
the pillar is located between the two locking tabs; and
the pillar inhibits the first element of each of the two locking tabs from inclining beyond the predetermined magnitude.

5. The fixture according to claim 4 , wherein the two locking tabs are disposed symmetrically to one another with respect to the pillar.

6. The fixture according to claim 1 , wherein a part of the base is in the hole of the vehicle body, thereby inhibiting the vehicle body from moving relative to the fitting beyond the predetermined magnitude in the direction that is perpendicular to the penetration direction of the hole of the vehicle body.

7. The fixture according to claim 1 , wherein:
the second end of the locking tab has a groove into which a rim forming the hole in the vehicle body is fitted; and
the groove inhibits the vehicle body from moving relative to the fitting beyond a predetermined magnitude in a direction opposite to the penetration direction of the hole in the vehicle body.

8. The fixture according to claim 7 , wherein:
the groove has a bottom and an opening;
the groove has as a tapered shape that expands toward the opening; and
the second end of the locking tab is shaped as a curved protrusion.

9. The fixture according to claim 1 , wherein the locking tab has a dogleg shape including the second, leading end and the first, trailing end fixed to the base, thereby controlling inclining of the locking tab at the second end with the first end.

10. The fixture according to claim 1 , wherein the second end of the locking tab is a free end with a cut-off that is locked with the hole, thereby not only inhibiting the locking tab from moving relative to the hole beyond a predetermined magnitude in the penetration direction of the hole but also inhibiting the locking tab from moving relative to the hole beyond the predetermined magnitude in the direction that is perpendicular to the penetration direction of the hole.

11. The fixture according to claim 1 , wherein the pillar tapers from narrow to wide in a direction away from the base.

12. The fixture according to claim 1 , wherein a gap is present between the guard and the locking tab, thereby inhibiting the locking tab from moving in a direction away from the base beyond a predetermined magnitude.

13. A fixture for piping and for fixing the piping onto a vehicle body, the fixture being made of resin and comprising:
a fixture body installed onto the piping; and
a fitting, integral with the fixture body, that is fitted into a hole in the vehicle body so that the fitting is exposed outside the vehicle body, the fitting including:
a base;
a locking tab having a first end fixed onto the base, having one or more folding sections, and being inclinable by elastic deformation about the first end and the one or more folding sections serving as fulcrums to thereby be locked up with the hole in the vehicle body;
a pillar erected onto the base and projecting from the hole to the outside of the vehicle body; and
a guard disposed on the pillar and located farther from the base than the locking tab, wherein:

the pillar is spaced apart from the locking tab in a state where (i) the fitting is fitted in the hole of the vehicle body and (ii) the locking tab is not inclined about its first end that serves as one of the fulcrums;
the fixture is applied to a breather line connecting a fuel tank with a filler pipe; and
the fixture body includes:
a first attaching portion installed onto an end of a first breather pipe that communicates at a second end thereof with an upper space inside the fuel tank, thereby making a pipe for exhausting air within the fuel tank to an outside of the fuel tank;
a second attaching portion installed onto an end of a second breather pipe that communicates at a second end thereof with the filler pipe, thereby making a pipe for exhausting air, which comes from the fuel tank and then passes through the first breather pipe, toward the filler pipe; and
a third attaching portion installed onto an end of a suction pipe that communicates at another end thereof with the fuel tank, thereby making a pipe for sucking in liquid fuel, which is reserved in the fixture body, and then returning the liquid fuel toward the fuel tank.

Assignees

• Sumitomo Riko Co Ltd

Inventors

• Hirano Tomohiro
• Kawabata Masanori
• Asai Takahiro
• Nakashima Takaki

Classifications

• F16B21/086

  the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion · CPC title

• Y10T137/85954

  Closed circulating system · CPC title

• F16L47/32

  Branch units, e.g. made in one piece, welded, riveted · CPC title

• F16L47/26

  for branching pipes; for joining pipes to walls; Adaptors therefor · CPC title

• F16L5/00

  Devices for use where pipes, cables or protective tubing pass through walls or partitions (installations of electric cables or lines through walls, floors or ceilings H02G3/22) · CPC title