KR20170101454A - Fitting assembly and manufacturing method thereof - Google Patents

Fitting assembly and manufacturing method thereof Download PDF

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Publication number
KR20170101454A
KR20170101454A KR1020160023989A KR20160023989A KR20170101454A KR 20170101454 A KR20170101454 A KR 20170101454A KR 1020160023989 A KR1020160023989 A KR 1020160023989A KR 20160023989 A KR20160023989 A KR 20160023989A KR 20170101454 A KR20170101454 A KR 20170101454A
Authority
KR
South Korea
Prior art keywords
nut member
nipple
bracket assembly
intermediate nut
thread
Prior art date
Application number
KR1020160023989A
Other languages
Korean (ko)
Inventor
위성택
안성근
백창민
김영주
Original Assignee
주식회사 파카하니핀 커넥터
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 파카하니핀 커넥터 filed Critical 주식회사 파카하니핀 커넥터
Priority to KR1020160023989A priority Critical patent/KR20170101454A/en
Publication of KR20170101454A publication Critical patent/KR20170101454A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • F16L33/2078—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member connected to the rigid member via an intermediate element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices

Abstract

The present invention relates to a bracket assembly for fluidly communicating a hose with a connection object of an associated facility, wherein the bracket assembly comprises a nipple member having a thread formed on a part of the outer surface thereof and an intermediate nut member . ≪ / RTI >

Description

TECHNICAL FIELD [0001] The present invention relates to a metal fitting assembly and a method of manufacturing the same,

The present invention relates to a bracket assembly and a method of manufacturing the same.

Generally, in a hydraulic system, a bracket assembly is used which serves as an intermediary for connecting a hose to a connection object for supplying and / or recovering a working fluid.

FIG. 1 is an exploded perspective view illustrating a metal bracket according to an example of the related art, and FIG. 2 is an assembled perspective view illustrating a metal bracket according to an example of the related art. 1 and 2, a metal bracket 1 according to an example of the related art includes a nut member 2 connected to a connection object of related equipment, a nipple member 3 connected to the nut member 2, And a shell member (4) fastened to the member (3) and fixing the hose together with the nipple member (3). In order to manufacture such a conventional metal bracket 4, the nut member 2 is placed on the tip of the nipple member 3 and then the nut member 2 is subjected to plastic deformation The shell member 4 is placed on the central portion of the nipple member 3 and then the shell member 4 is plastically deformed in the direction of the arrow 6 by the hydraulic pressure bonding method Should be connected to the nipple member (2).

However, due to the forced hydraulic pressure bonding to the nut member 2 and the shell member 4 and the plastic deformation thereof, the internal stresses of the respective members are increased, so that the rigidity of these members is lowered, And the corrosion resistance is frequently deteriorated. Thus, there is a problem that the reliability of the product is greatly deteriorated.

As another example of the prior art, a bracket for a high-pressure hose disclosed in Korean Patent Publication No. 10-2013-0105078 is taken as an example. FIG. 3 is a cross-sectional view showing a state before the shell member of the high-pressure hose bracket according to another example of the related art is permanently engaged with the nipple member, and FIG. 4 is a cross- Sectional view showing the state after being permanently bonded to the member. 3 and 4, the high-pressure hose bracket 1 is provided with a nipple member 3 and a shell member 4 to be permanently engaged with the nipple member 3. As shown in Fig. In order to manufacture such a conventional high-pressure hose bracket 1, as shown in Fig. 3, in a state where the shell member 4 is placed on the nipple member 3, as shown in Fig. 4, The deformed projection 7 should be formed by inserting a portion of the inner side of the nipple member 2 outwardly by forcibly deforming the inside of the nipple member 2 by using the expansion mechanism.

However, the process for plastic deformation of a part of the inner side of the nipple member 2 to the outside requires a very high precision, and when applied to actual manufacturing sites, not only the product defect rate is greatly increased but also the expansion mechanism itself is very complicated And thus it is not suitable for mass production of products.

An object of the present invention is to solve the problems of the prior art described above and to provide a fixture assembly which is easy to assemble each constituent member and is suitable for mass production of a product and a method of manufacturing the same.

A bracket assembly according to one aspect of the present invention is a bracket assembly for fluidly communicating a hose with an object to be connected of an associated facility, comprising: a nipple member having a thread formed on a portion of an outer surface thereof; and an intermediate nut member .

An annular recess may be formed at a position adjacent to the thread.

When the intermediate nut member is screwed, the distal end of the intermediate nut member can protrude above the annular recess.

The distal side surface of the intermediate nut member may be an inclined surface.

The distal side surface of the intermediate nut member may be an inclined surface.

The nipple member may further include an annular head protruding outward in the radial direction and a nut member having an annular step protruded radially inwardly from the distal end so as to be caught by the annular head.

The female screw thread formed on the inner circumferential surface of the nut member is formed by a right screw thread, and the female screw thread formed on the inner circumferential face of the intermediate nut member may be formed by a left thread screw.

According to another aspect of the present invention, there is provided a method of manufacturing a bracket assembly for fluidly communicating a hose with a connection object of an associated facility, the method comprising: connecting a nut member to a nipple member An intermediate nut member fastening step of screwing the intermediate nut member to the nipple member, and a shell member fastening step of press-fitting the shell member into the nipple member.

And the intermediate nut member can be pressed in the longitudinal direction by press fitting of the shell member.

According to the metal plate assembly and the manufacturing method thereof according to the present invention, it is easy to assemble each constituent member and is suitable for mass production of products.

1 is an exploded perspective view showing a metal bracket according to an example of the related art,
FIG. 2 is a perspective view showing a metal bracket according to an example of the related art,
3 is a sectional view showing a state before the shell member is permanently engaged with the nipple member as a bracket for a high-pressure hose according to another example of the prior art;
4 is a sectional view showing a state after the shell member is permanently bonded to the nipple member as a bracket for a high-pressure hose according to another example of the prior art;
FIG. 5 is an exploded perspective view of a metal plate assembly according to the present invention, FIG.
6 is a view showing a state in which a nut member and an intermediate nut member are arranged on a nipple member of the present invention,
FIG. 7 is a perspective view illustrating a metal fitting assembly according to the present invention,
8 is a view illustrating a manufacturing process of a method of manufacturing a metal plate assembly according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 5 is an exploded perspective view showing a metal plate assembly according to the present invention, FIG. 6 is a view illustrating a state where a nut member and an intermediate nut member are disposed on a nipple member, Fig.

5 to 7, a metal fitting assembly 10 according to an embodiment of the present invention includes a nut member 20, a nipple member 30, an intermediate nut member 40, and a shell member (50).

The nut member 20 is a cylindrical member whose both ends are open. On the inner circumferential surface of the nut member 20, a female thread 21 made of a right thread is formed. The outer surface is formed to have a polygonal surface (hexagonal surface in this embodiment) An annular step 22 protruding inward in the radial direction is provided.

An annular head 31 protruding radially outward is formed at the distal end portion of the nipple member 30 and an intermediate nut member 40 is screwed to the outer surface of the central portion. And an annular recess 32 into which the thread 31 and the shell member 50 are press-fitted by a hydraulic pressure bonding method are formed at neighboring positions, An inner supporting portion 33 for supporting the inner supporting portion 33 is provided.

The intermediate nut member 40 is a cylindrical member having open ends at both ends, and the inner thread surface is formed so that the female thread 41 is formed by a left thread, and the outer surface is formed to have a polygonal surface (hexagonal surface in this embodiment) And the distal end side 42 of the distal end is formed to be an inclined surface.

The shell member 50 is a cylindrical member having open ends at both ends. The shell member 50 is provided with an annular protrusion 51 protruding radially inwardly at its tip end, and an outer support 52 for supporting the outer surface of the hose is provided at the distal end have.

Now, a method of manufacturing the metal plate assembly according to the present invention will be described with reference to the manufacturing process of the metal plate assembly shown in Fig.

The method of manufacturing a metal plate assembly according to the present invention includes a nut member connecting step (S100), an intermediate nut member fastening step (S200), and a shell member fastening step (S300).

The nut member connecting step S100 refers to a step of rotatably connecting the nut member 20 to the nipple member 30 in a slip-on-manner. The nut member 20 is configured such that the annular step 22 of the nut member 20 is in contact with the annular head 31 of the nipple member 30 so as to be engaged with the nipple member 30 Without detaching from the distal end of the base plate (not shown). The nut member 20 is formed with the female thread 21 made of the right screw so that the nut member 20 is rotated in the clockwise direction when the operator looks at it, And can be fixedly fastened to the object.

The intermediate nut member securing step S200 refers to a step of screwing the intermediate nut member 40 to the thread 31 of the nipple member 30. [ Since the intermediate nut member 40 is formed with the female thread 41 made of the left screw thread, the intermediate nut member 40 is rotated by rotating the intermediate nut member 41 in the counterclockwise direction as viewed by the operator, To the nipple member (30). The tapered distal side surface 42 of the intermediate nut member 40 is formed such that the intermediate nut member 40 is screwed to the thread 31 of the nipple member 30, (32) of the housing (30).

The shell member fixing step S100 is a step of press fitting the shell member 50 into the annular recess 32 of the nipple member 30 by a hydraulic pressure bonding method. Specifically, the shell member 50 is fixed to the annular protrusion 32 of the shell member 50 The pressing member 51 is placed on the annular recess 32 of the nipple member 30 and thereafter the radially inwardly directed hydraulic pressure is applied to the distal end of the shell member 50 so that the annular protrusion 51 of the shell member 50 ) Into the annular recess 32 of the nipple member 30 by press fitting. The hydraulic pressure bonding force acting on the tip end portion of the shell member 50 is such that the tapered distal end side surface 42 of the intermediate nut member 40 is pressurized in the longitudinal direction while press fitting the shell member 50 into the nipple member 30, do. The intermediate nut member 40 can be more firmly screwed and fastened to the nipple member 30 by the pressure. The female threads 21 formed on the inner circumferential surface of the nut member 20 are formed by right thread threads and the female threads 41 formed on the inner circumferential surface of the intermediate nut member 40 are formed by left thread threads. Therefore, the screw fastening of the intermediate nut member 40, which may be caused by frequent fastening or unfastening of the metal fitting assembly 10, can be prevented or greatly alleviated.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, Therefore, the technical scope of the present invention should not be limited to the above-described embodiments, but should be determined by the equivalents of the claims and the claims.

10:
20: Nut member
30: Nipple member
40: intermediate nut member
50: Shell member

Claims (8)

A bracket assembly for fluidly communicating a hose with a connection object of an associated facility,
A nipple member having a thread formed on a part of the outer surface and
And an intermediate nut member which is screwed with the threaded portion
A bracket assembly.
The method according to claim 1,
Wherein an annular recess is formed at a position adjacent to the thread
A bracket assembly.
3. The method of claim 2,
When the intermediate nut member is screwed, the distal end of the intermediate nut member protrudes above the annular recess
A bracket assembly.
The method of claim 3,
Wherein the distal side surface of the intermediate nut member is formed of an inclined surface
A bracket assembly.
The method according to claim 3 or 4,
An annular head protruding outward in the radial direction is formed at the tip of the nipple member,
And a nut member having an annular step protruding radially inwardly from the distal end to engage the annular head
A bracket assembly.
6. The method of claim 5,
The female screw formed on the inner circumferential surface of the nut member is formed of a right screw thread,
And the female screw formed on the inner peripheral surface of the intermediate nut member is formed with a left thread
A bracket assembly.
CLAIMS What is claimed is: 1. A method of manufacturing a bracket assembly for fluidly communicating a hose to a connection object of an associated facility,
A nut member connecting step of rotatably connecting the nut member to the nipple member,
An intermediate nut member fastening step of fastening an intermediate nut member to the nipple member;
And a shell member fixing step of press-fitting the shell member into the nipple member
≪ / RTI >
8. The method of claim 7,
And the intermediate nut member is pressed in the longitudinal direction by press fitting of the shell member
≪ / RTI >
KR1020160023989A 2016-02-29 2016-02-29 Fitting assembly and manufacturing method thereof KR20170101454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160023989A KR20170101454A (en) 2016-02-29 2016-02-29 Fitting assembly and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160023989A KR20170101454A (en) 2016-02-29 2016-02-29 Fitting assembly and manufacturing method thereof

Publications (1)

Publication Number Publication Date
KR20170101454A true KR20170101454A (en) 2017-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160023989A KR20170101454A (en) 2016-02-29 2016-02-29 Fitting assembly and manufacturing method thereof

Country Status (1)

Country Link
KR (1) KR20170101454A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102161806B1 (en) * 2019-11-29 2020-10-05 주식회사 코만 A process of assembling hose connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102161806B1 (en) * 2019-11-29 2020-10-05 주식회사 코만 A process of assembling hose connector

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E601 Decision to refuse application