CA1176188A - Tube fitting - Google Patents
Tube fittingInfo
- Publication number
- CA1176188A CA1176188A CA000401038A CA401038A CA1176188A CA 1176188 A CA1176188 A CA 1176188A CA 000401038 A CA000401038 A CA 000401038A CA 401038 A CA401038 A CA 401038A CA 1176188 A CA1176188 A CA 1176188A
- Authority
- CA
- Canada
- Prior art keywords
- tube
- fitting
- profile
- fitting according
- seal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- 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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
- F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
- F16L13/143—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
-
- 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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Joints With Sleeves (AREA)
- Clamps And Clips (AREA)
- Joints With Pressure Members (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A tube fitting, particularly for radiators, the fitting being of harder material than the tube. The fitting is provided with a profile, and the tube is deformed at points diametrically opposite each other to press against and thus engage said profile so that the fitting and the tube engage rigidly without having to be screwed together.
A tube fitting, particularly for radiators, the fitting being of harder material than the tube. The fitting is provided with a profile, and the tube is deformed at points diametrically opposite each other to press against and thus engage said profile so that the fitting and the tube engage rigidly without having to be screwed together.
Description
1~76~88 The present invention relates to a tube fitting, particularly for sanitary and heating systems, radiators and the like, the fitting engaging in a tube, e.g. in a radiator collecting tube of cold-forgable material, e.g.
aluminium, said fitting provided with at least one seal-0-ring sealingly resting against the inner surface of the tube and further provided with a profile in at least two diametral opposed places on its outer surface.
With conventional couplings the tube as well as the fitting are provided with a thread, whereby the fitting is screwed into the tube and hemp is used as sealing means.
The present invention provides a tube fitting having better sealing properties than those of the prior art.
The present invention also provides a coupling which is easy to make. It should no longer ,, *
. ~
~176~
be required to screw threads into the parts which have to be cut to the desired length, i.e. the tube.
The fittiny according to the invention may equally be used as a blind plug, air relief plug or connecting plug.
The fitting according to the invention is particularly suitable for twin and triple couplings.
The fitting according to the invention is further particularly suitable for being used with radiators of heating systems, as already mentioned. Such radiators are frequently formed by a series of -- ribs of light metal profiles comprising vertical tubes for the heat exchange medium, substantially H-shaped heat exchange ribs and collecting tubes arranged at the ends of said ribs. The collecting tubes are coupled with the fitting.
Radiators of this kind are usually made of light metal extruded profiles. As proposed by the same applicant, the series of ribs is assembled at the production site and then off site, e.g. at the whole-salers, cut to radiators of the desired length. A
given series of ribs is divided into sections of the desired length. There remain sections of unused ribs 1~761~38 which may by means of the fitting according to the invention easily be assembled to a finished radiator.
According to the invention, this is achieved by making the fitting of a material which is harder than the tube and by pressing the tube to defer the tube at points diametrically opposite each other to engage with the profile of the fitting. Thus the deformation is not a continuous ring but only at points diametrically opposite each other.
According to the present invention there is provided a tube fitting, particularly for sanitary and heating systems, radiators and the like, the fitting engaging in a tube, said fitting provided with at least one seal-0-ring sealingly abutting the` inner surface of the tube and further provided with a profile in at least two diametral opposed locations on its outer surface, said fitting being of a harder material than said tube, and said tube being deformed at points diame-trically opposite each other to engage with said profile of said fitting.
The fitting according to the invention provides a coupling of high sealing quality and has, further, the great advantage that no thread has to be cut into the tube.
This is of particular importance, when radiators are finished in the above-described manner, e.g. at a wholesaler where generally no personnel skilled to cut the required threads is available. Moreover, a considerable amount of time can be saved, when using the fitting according to the invention.
The tube is preferably pressed by means of hydraulic tongs, but it may be pressed mechanically by means of a suitable transmission through which a pressing power of about 500 kg, for example, can be obtained.
Depending on the tube character, lower pressing powers may also be sufficent.
117~88 An advantageous e~bodiment of the invention provides that the profile is formed by ribs extending around the fitting.
A further embodiment provides that the profile is formed by a rib extending like a thread.
Due to this embodiment, the fitting can be reused, i.e. after pressing, the fitting can be screwed out of the tube, while when being moun~ed, it is simply pushed into the tube and then the tube is pressed.
A further embodiment of the invention provides two seal-0-rings arranged at both sides of the profile.
. .
If one seal-0-ring is provided only, it will be arranged between the profiled portion or portions and the outer end of the tube.
It is further advantageously provided that the fitting is flattened in the profiled portions.
The tube is advantageouslypressed at various points.
The fitting is advantageously made of steel and the tube of drawn aluminium.
The tube of drawn aluminium ensures a particularly 117618~3 tight sealing of the 0-ring.
Various embodiments will now be described by means of the Figures of the accompanying drawings, and in which:-Fig. 1 is a schematic longitudinal sectional viewof a tube fitting according to one embodiment of the invention;
Figs. 2 to 4 are schematic side views of a tube fitting according to further embodiments of the invention;
Fig. 5 is a schematic view of a radiator whose air relief plugs and couplings are- fittings according to the invention; and Figs. 6 to 8 show embodiments of the profile accord-ing to various embodiments of the invention.
The tube fitting according to the invention will be described by means of the radiator illustrated in Fig.
5.
The radiator substantially comprises vertical tubes, which are longitudinal profiles 1, and collecting tubes, which are tube profiles 2.
-`` 11761~8 The coupling according to the invention is effected between one collecting tube, each, and a fitting 3.
Fig. ~ illustrates a coupling in which the fitting 3 is a blind plug The fitting 3 is at its outer surface over the breadth d provided with a profile 4 formed by ribs 5 extending around the fitting 3.
At both sides of the profile 4, the fitting 3 is provided with one annular groove 7, each, seal-0-rings 8 being arranged in said annular grooves 7.
When being mounted, the fitting 3 is inserted into the tube 2~ which is preferably of drawn aluminium. Then the tube 2 is pressed at the points 9 from the direction of the arrows by means of tongs so that the profile 4 of the fitting is-prèssed together with two opposite points of the tube 2.
Due to this embodiment, the fitting 3 is firmly retained in the tube 2, and the seal-0-rings 8 guarantee absolutely tight sealing.
By means of a fitting 3 according to Fig. 4, two tubes 2 20 can be coupled to each other. Mounting operations are carried out according to the afore-described embodiment, the tubes 2 are obviously pressed at both sides of the fitting 3 in the region of the profiles 4.
1~76i~88 The embodiment of a fitting 3 having one seal-0-ring 8 only (as illustrated in Fig. 3) is of advantaye if the profile 4 is a thread and, hence, the fitting 3 can be screwed out of the tube 2 and pressed again in another tube 2. Due to the fact that the seal-0-ring 8 is positioned between the profile 4 and the outer end of the tube 2, it will not be damaged, when being screwed out.
Figs. 6 and 7, each, show profiles 4 continuously extending around the circumference of the fitting 3.
;
!
Fig. 8 shows a fitting on which the profiles 4 are provided at certain points only, the fitting 3 -- being flattened in the regions of the profiles 4.
aluminium, said fitting provided with at least one seal-0-ring sealingly resting against the inner surface of the tube and further provided with a profile in at least two diametral opposed places on its outer surface.
With conventional couplings the tube as well as the fitting are provided with a thread, whereby the fitting is screwed into the tube and hemp is used as sealing means.
The present invention provides a tube fitting having better sealing properties than those of the prior art.
The present invention also provides a coupling which is easy to make. It should no longer ,, *
. ~
~176~
be required to screw threads into the parts which have to be cut to the desired length, i.e. the tube.
The fittiny according to the invention may equally be used as a blind plug, air relief plug or connecting plug.
The fitting according to the invention is particularly suitable for twin and triple couplings.
The fitting according to the invention is further particularly suitable for being used with radiators of heating systems, as already mentioned. Such radiators are frequently formed by a series of -- ribs of light metal profiles comprising vertical tubes for the heat exchange medium, substantially H-shaped heat exchange ribs and collecting tubes arranged at the ends of said ribs. The collecting tubes are coupled with the fitting.
Radiators of this kind are usually made of light metal extruded profiles. As proposed by the same applicant, the series of ribs is assembled at the production site and then off site, e.g. at the whole-salers, cut to radiators of the desired length. A
given series of ribs is divided into sections of the desired length. There remain sections of unused ribs 1~761~38 which may by means of the fitting according to the invention easily be assembled to a finished radiator.
According to the invention, this is achieved by making the fitting of a material which is harder than the tube and by pressing the tube to defer the tube at points diametrically opposite each other to engage with the profile of the fitting. Thus the deformation is not a continuous ring but only at points diametrically opposite each other.
According to the present invention there is provided a tube fitting, particularly for sanitary and heating systems, radiators and the like, the fitting engaging in a tube, said fitting provided with at least one seal-0-ring sealingly abutting the` inner surface of the tube and further provided with a profile in at least two diametral opposed locations on its outer surface, said fitting being of a harder material than said tube, and said tube being deformed at points diame-trically opposite each other to engage with said profile of said fitting.
The fitting according to the invention provides a coupling of high sealing quality and has, further, the great advantage that no thread has to be cut into the tube.
This is of particular importance, when radiators are finished in the above-described manner, e.g. at a wholesaler where generally no personnel skilled to cut the required threads is available. Moreover, a considerable amount of time can be saved, when using the fitting according to the invention.
The tube is preferably pressed by means of hydraulic tongs, but it may be pressed mechanically by means of a suitable transmission through which a pressing power of about 500 kg, for example, can be obtained.
Depending on the tube character, lower pressing powers may also be sufficent.
117~88 An advantageous e~bodiment of the invention provides that the profile is formed by ribs extending around the fitting.
A further embodiment provides that the profile is formed by a rib extending like a thread.
Due to this embodiment, the fitting can be reused, i.e. after pressing, the fitting can be screwed out of the tube, while when being moun~ed, it is simply pushed into the tube and then the tube is pressed.
A further embodiment of the invention provides two seal-0-rings arranged at both sides of the profile.
. .
If one seal-0-ring is provided only, it will be arranged between the profiled portion or portions and the outer end of the tube.
It is further advantageously provided that the fitting is flattened in the profiled portions.
The tube is advantageouslypressed at various points.
The fitting is advantageously made of steel and the tube of drawn aluminium.
The tube of drawn aluminium ensures a particularly 117618~3 tight sealing of the 0-ring.
Various embodiments will now be described by means of the Figures of the accompanying drawings, and in which:-Fig. 1 is a schematic longitudinal sectional viewof a tube fitting according to one embodiment of the invention;
Figs. 2 to 4 are schematic side views of a tube fitting according to further embodiments of the invention;
Fig. 5 is a schematic view of a radiator whose air relief plugs and couplings are- fittings according to the invention; and Figs. 6 to 8 show embodiments of the profile accord-ing to various embodiments of the invention.
The tube fitting according to the invention will be described by means of the radiator illustrated in Fig.
5.
The radiator substantially comprises vertical tubes, which are longitudinal profiles 1, and collecting tubes, which are tube profiles 2.
-`` 11761~8 The coupling according to the invention is effected between one collecting tube, each, and a fitting 3.
Fig. ~ illustrates a coupling in which the fitting 3 is a blind plug The fitting 3 is at its outer surface over the breadth d provided with a profile 4 formed by ribs 5 extending around the fitting 3.
At both sides of the profile 4, the fitting 3 is provided with one annular groove 7, each, seal-0-rings 8 being arranged in said annular grooves 7.
When being mounted, the fitting 3 is inserted into the tube 2~ which is preferably of drawn aluminium. Then the tube 2 is pressed at the points 9 from the direction of the arrows by means of tongs so that the profile 4 of the fitting is-prèssed together with two opposite points of the tube 2.
Due to this embodiment, the fitting 3 is firmly retained in the tube 2, and the seal-0-rings 8 guarantee absolutely tight sealing.
By means of a fitting 3 according to Fig. 4, two tubes 2 20 can be coupled to each other. Mounting operations are carried out according to the afore-described embodiment, the tubes 2 are obviously pressed at both sides of the fitting 3 in the region of the profiles 4.
1~76i~88 The embodiment of a fitting 3 having one seal-0-ring 8 only (as illustrated in Fig. 3) is of advantaye if the profile 4 is a thread and, hence, the fitting 3 can be screwed out of the tube 2 and pressed again in another tube 2. Due to the fact that the seal-0-ring 8 is positioned between the profile 4 and the outer end of the tube 2, it will not be damaged, when being screwed out.
Figs. 6 and 7, each, show profiles 4 continuously extending around the circumference of the fitting 3.
;
!
Fig. 8 shows a fitting on which the profiles 4 are provided at certain points only, the fitting 3 -- being flattened in the regions of the profiles 4.
Claims (8)
1. A tube fitting, particularly for sanitary and heating systems, radiators and the like, the fitting engaging in a tube, said fitting provided with at least one seal-O-ring sealingly abutting the inner surface of the tube and further provided with a profile in at least two diametral opposed locations on its outer surface, said fitting being of a harder material than said tube, and said tube being deformed at points diametrically opposite each other to engage with said profile of said fitting.
2. A tube fitting according to claim 1, wherein said profile is formed by ribs extending around said fitting.
3. A tube fitting according to claim 1, wherein said profile is formed by a threadlike extending rib.
4. A tube fitting according to claim 1, 2 or 3, including two seal-O-rings arranged at both sides of said profile.
5. A tube fitting according to claim 1, 2 or 3, wherein said fitting is flattened in the region of said profile.
6. A tube fitting according to claim 1, 2 or 3, wherein said fitting is made of steel.
7. A tube fitting according to claim 1, 2 or 3, wherein said tube is made of drawn aluminium.
8. A tube fitting according to claim 1, 2 or 3, in which the fitting engages in a radiator collecting tube of cold forgable material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT204281A AT371245B (en) | 1981-05-08 | 1981-05-08 | PIPE FITTING CONNECTION |
| ATA2042/81 | 1981-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1176188A true CA1176188A (en) | 1984-10-16 |
Family
ID=3526528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000401038A Expired CA1176188A (en) | 1981-05-08 | 1982-04-15 | Tube fitting |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0078270A1 (en) |
| AT (1) | AT371245B (en) |
| CA (1) | CA1176188A (en) |
| ES (1) | ES274452Y (en) |
| GR (1) | GR76016B (en) |
| WO (1) | WO1982003901A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623554A1 (en) * | 1986-07-12 | 1988-01-21 | Pierburg Gmbh | ELECTROMAGNETIC, INTERMITTENT INJECTION VALVE |
| US8261445B2 (en) * | 2009-11-23 | 2012-09-11 | International Controls And Measurements Corp. | Aluminum tube-aluminum fin baseboard radiator |
| DE102013108201A1 (en) * | 2013-07-31 | 2015-02-05 | Viega Gmbh & Co. Kg | Press fitting for threaded connection |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB858121A (en) * | 1957-02-12 | 1961-01-04 | Hydrocarbon Research Inc | Pipe couplings |
| FR1581657A (en) * | 1968-07-09 | 1969-09-19 | ||
| US3689111A (en) * | 1970-10-27 | 1972-09-05 | Bowen Tools Inc | Tubing connection having means for distributing axially applied forces |
-
1981
- 1981-05-08 AT AT204281A patent/AT371245B/en not_active IP Right Cessation
-
1982
- 1982-04-15 CA CA000401038A patent/CA1176188A/en not_active Expired
- 1982-04-20 WO PCT/AT1982/000012 patent/WO1982003901A1/en not_active Application Discontinuation
- 1982-04-20 EP EP19820901091 patent/EP0078270A1/en not_active Withdrawn
- 1982-05-05 GR GR68069A patent/GR76016B/el unknown
- 1982-05-07 ES ES1982274452U patent/ES274452Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| WO1982003901A1 (en) | 1982-11-11 |
| GR76016B (en) | 1984-08-03 |
| EP0078270A1 (en) | 1983-05-11 |
| ATA204281A (en) | 1982-10-15 |
| ES274452Y (en) | 1984-11-16 |
| AT371245B (en) | 1983-06-10 |
| ES274452U (en) | 1984-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |