Elastic tubular body

Patent metadata

Field	Value
Publication number	US-10227052-B2
Application number	US-201715443366-A
Country	US
Kind code	B2
Filing date	Feb 27, 2017
Priority date	Feb 29, 2016
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

An elastic tubular body includes a grommet fitted to an opening edge of a mounting hole of a support body, a flared portion formed in a flare shape and deformable so as to invert an inner face and an outer face and having a large diameter edge coupled to the grommet; and a bellows-like tube of a bellows-like tubular shape having a smaller diameter than an inner diameter of a small diameter edge of the flared portion, a first end of the bellows-like tube connected with the small diameter edge of the flared portion. The flared portion is configured to be in a state projecting from the grommet or in a state where the outer face is reversed to enter inside the inner face and store the flared portion in a storage space of the grommet. The bellows-like tube is stored inside the flared portion stored in the storage space.

First claim

What is claimed is:

1. An elastic tubular body comprising:
a grommet configured to be fitted to an opening edge of a mounting hole of a support body;
a flared portion formed in a flare shape having a large diameter edge and a small diameter edge and a plurality of rings having successively smaller diameter in order from the large diameter edge to the small diameter edge, and the flared portion being deformable so as to invert an inner face and an outer face, and having the large diameter edge coupled to the grommet; and
a bellows tube formed in a bellows tubular shape with alternating annular peaks and annular valleys, the annular peaks having a smaller diameter than an inner diameter of the small diameter edge of the flared portion and the annular valleys having a smaller diameter than the annular peaks, a first end of the bellows tube being connected with the small diameter edge of the flared portion,
the elastic tubular body being configured such that a flexible linear body passing through the mounting hole can be inserted through the grommet, flared portion, and bellows tube,
wherein
the flared portion is configured to be in one of a condition projecting from the grommet and a condition in which the outer face is reversed to enter inside the inner face such that the flared portion is stored in a storage space in the grommet, and the bellows tube is stored inside the flared portion stored in the storage space.

2. The elastic tubular body according to claim 1 , wherein the grommet is fitted to the opening edge of the mounting hole of the support body, the support body being one of a vehicle body and a door hinge-coupled to the vehicle body so as to be capable of opening and closing and the vehicle body, the elastic tubular body further comprising:
a second grommet coupled to a second end of the bellows tube and configured to be fitted to an opening edge of a second support body which is the other one of the door and the vehicle body, and
a coupling portion releasably coupling the grommet and the second grommet such that the grommet and the second grommet can be separated from each other.

3. The elastic tubular body according to claim 2 , wherein the coupling portion includes an engaging projection formed on a surface of the grommet opposing the second grommet, and an engagement recess provided to a surface of the second grommet opposing the grommet and corresponding to the engaging projection, the engagement recess engaging with the engaging projection.

4. An elastic tubular body comprising:
a grommet configured to be fitted to an opening edge of a mounting hole of a support body;
a flared portion formed in a flare shape and deformable so as to invert an inner face and an outer face, and having a large diameter edge coupled to the grommet; and
a bellows tube formed in a bellows tubular shape with alternating annular peaks and annular valleys, the annular peaks having a smaller diameter than an inner diameter of a small diameter edge of the flared portion and the annular valleys having a smaller diameter than the annular peaks, a first end of the bellows tube being connected with the small diameter edge of the flared portion,
the elastic tubular body being configured such that a flexible linear body passing through the mounting hole can be inserted through the grommet, flared portion, and bellows tube,
wherein the flared portion is configured to be in one of a condition projecting from the grommet and a condition in which the outer face is reversed to enter inside the inner face such that the flared portion is stored in a storage space in the grommet, and the bellows tube is stored inside the flared portion stored in the storage space, and
wherein the coupling portion includes an engaging projection formed on a surface of the grommet opposing the second grommet, and an engagement recess provided to a surface of the second grommet opposing the grommet and corresponding to the engaging projection, the engagement recess engaging with the engaging projection.

Assignees

• Sumitomo Wiring Systems

Inventors

• Nakagawa Tetsuya

Classifications

• H02G3/0468

  Corrugated · CPC title

• F16L11/11

  with corrugated wall · CPC title

• B60R16/0222 Primary

  Grommets · CPC title

• H02G3/0462

  Tubings, i.e. having a closed section · CPC title

• B60R16/0215 Primary

  Protecting, fastening and routing means therefor · CPC title