# US 2018/0023602 A1 · Connection devices for fluidic devices

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- Number: US 2018/0023602 A1
- Document ID: US20180023602A1
- Status: Published application
- Kind: A1
- Application number: 15/549,000
- Filed: 2016-01-22
- Published: 2018-01-25
- Earliest claimed: 2015-02-06
- Assignees: SMC Corporation
- Applicants: Smc Corporation
- Inventors: Shinichi ITO; Makoto WADA
- Web page: https://patentgrep.com/patent/US20180023602A1

## CPC

- F16B 2/14: using wedges
- F16B 7/0466: {by a screw-threaded stud with a conical tip acting on an inclined surface}
- F16L 41/086: {fixed with screws}
- F16N 7/34: Atomising devices for oil (atomising devices in general B05B)
- F16N 25/00: Distributing equipment {with or without proportioning devices}
- F16N 39/06: by filtration (filters in general B01D; magnetic separators B03C1/00; {centrifugal separators or filters B04B5/005})
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16N: LUBRICATING

## 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.

## Claims

### Claim at position 1

1: A connection device for fluid pressure devices which is disposed between one and another of 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 which is provided with a pair of holding parts, the holding parts being engaged with protrusion parts which are respectively provided on the one and the other of the fluid pressure devices; and
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 the fastening members include a main body part and a screw part, the main body part being formed to have a substantially rectangular sectional shape and being engaged with the base member, and the screw part protruding with respect to the main body part and being inserted into the holders, and wherein to at least one of the pair of holders, the screw part is inserted and a nut is screw-engaged, and a cap is fitted.

### Claim at position 2 (depends on 1)

2: The connection device for the fluid pressure devices according to claim 1, wherein in the cap, a chamber in which the one holder and the nut are housed is provided, and a through hole which communicates with the chamber and through which a head part of the nut is inserted is formed.

### Claim at position 3 (depends on 2)

3: The connection device for the fluid pressure devices according to claim 2, wherein inclined surfaces which are opened toward an outside are provided on surfaces of the cap, the surfaces being on an opposite side of the cap from a surface in which the through hole is formed, and wherein the holding parts of the one bolder are abutted on the inclined surfaces, and thus the cap, the nut, and the holder are integrated.

### Claim at position 4 (depends on 1)

4: The connection device for the fluid pressure devices according to claim 1, wherein the nut includes a flange part, and the holder and the cap are held, the cap being engaged with the flange part by rotating the head part of the nut which is screw-engaged with the screw part.

### Claim at position 5 (depends on 1)

5: 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.