Connection devices for fluidic devices

Patent metadata

Field	Value
Publication number	US-10738809-B2
Application number	US-201615549000-A
Country	US
Kind code	B2
Filing date	Jan 22, 2016
Priority date	Feb 6, 2015
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

Connection devices for connecting together a filter, a regulator, and a lubricator, which constitute a fluidic unit, are each provided with: a base member having a hole; a pair of first and second fastening members which are mounted to one side surface and the other side surface of the base members; and first and second holders held by the first and second fastening members. The first and second holders are engaged with the engagement protrusions of the filter, the regulator, and the lubricator, and first and second nuts are engaged with the first and second fastening members through threads to connect the fluidic devices together through the first and second holders. Caps are fitted over the first holders and the first nuts.

First claim

The invention claimed is:

1. A connection device for fluid pressure devices which is disposed between one and another of the fluid pressure devices and integrally connects the fluid pressure devices to each other so as to allow respective fluid paths of the one and the other of the fluid pressure devices to communicate with each other, the connection device comprising:
a base member which includes a hole part configured to allow one fluid path and another fluid path to communicate with each other;
a pair of holders which are provided respectively on one lateral surface and another lateral surface of the base member, the one lateral surface and the other lateral surface being orthogonal to an axial direction of the hole part, and each of the holders is provided with a central part having an opening and a pair of holding parts provided to opposite sides of the central part, the holding parts having distal ends located opposite the central parts and having surfaces that are mutually inclined such that the inclined surfaces of the respective holding parts are separated farther from one another at the distal ends than at the central part, the holding parts being engaged with protrusion parts which are respectively provided on the one and the other of the fluid pressure devices;
a pair of fastening members which are provided on the one lateral surface and the other lateral surface of the base member and are configured to fix the holders respectively, wherein each of the fastening members includes a main body part and a screw part, the main body part being formed to have a substantially rectangular sectional shape and being engageable with the base member, and the screw part protruding with respect to the main body part and being insertable into the opening provided in the respective holder;
a nut which is screw engageable with the screw part of each of the fastening members; and
a cap into which a respective nut and holder are inserted,
wherein the cap includes a portion integrating the respective nut and holder with the cap when the nut is not screw engaged with the screw part of the respective fastening member,
wherein the cap comprises a chamber in which the respective holder and nut are housed and a through hole which communicates with the chamber, and wherein the portion integrating the respective nut and holder with the cap comprises:
inclined surfaces of the chamber which are opened toward an outside, the inclined surfaces of the chamber being on an opposite side of the cap from a surface in which the through hole is formed, further comprising inclined seats at the respective inclined surfaces of the chamber, wherein the inclined surfaces of the chamber are inclined to be separated farther from one another as viewed in a direction toward said seats, and wherein the distal ends of the holding parts of the respective holder are abutted on the inclined seats.

2. The connection device for the fluid pressure devices according to claim 1 , wherein a head part of the respective nut extends through the through hole to a location outside of the cap.

3. The connection device for the fluid pressure devices according to claim 1 , wherein the respective nut includes a flange part in the chamber, and wherein the portion integrating the respective nut and holder with the cap is engaged with the flange part, with a head part of the respective nut extending through the through hole to a location outside of the cap.

4. The connection device for the fluid pressure devices according to claim 1 , wherein the cap is an integrally molded article which is made of resin.

5. The connection device for the fluid pressure devices according to claim 1 , wherein the inclined surfaces of the chamber are inclined to match an inclination of the surfaces of the holding parts.

Assignees

• Smc Corp

Inventors

• Ito Shinichi
• Wada Makoto

Classifications

• F15B21/003 Primary

  Systems with different interchangeable components, e.g. using preassembled kits · CPC title

• F16B2/14 Primary

  using wedges · CPC title

• F16N7/34

  Atomising devices for oil (atomising devices in general B05B) · CPC title

• F16N39/06

  by filtration (filters in general B01D; magnetic separators B03C1/00; {centrifugal separators or filters B04B5/005}) · CPC title

• F16B7/0466

  by a screw-threaded stud with a conical tip acting on an inclined surface · CPC title