IE51628B1 - Improvements in stays for windows - Google Patents
Improvements in stays for windowsInfo
- Publication number
- IE51628B1 IE51628B1 IE2019/81A IE201981A IE51628B1 IE 51628 B1 IE51628 B1 IE 51628B1 IE 2019/81 A IE2019/81 A IE 2019/81A IE 201981 A IE201981 A IE 201981A IE 51628 B1 IE51628 B1 IE 51628B1
- Authority
- IE
- Ireland
- Prior art keywords
- rivet
- friction
- stay
- coating
- mounting plate
- Prior art date
Links
- 239000004033 plastic Substances 0.000 claims abstract description 31
- 229920003023 plastic Polymers 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000004677 Nylon Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/06—Solid rivets made in one piece
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/46—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms
- E05D15/466—Suspension arrangements for wings supported on arms movable in vertical planes with two pairs of pivoted arms specially adapted for windows
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/148—Windows
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B2019/045—Coated rivets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Bolts, Nuts, And Washers (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to a friction support for windows or the like, with a mounting plate (3) and an arm (2) which are connected to one another by means of a friction joint. The joint contains a rivet (7) which extends through the support parts (3, 2) and which is riveted on the underside of the plate (3). The rivet is prevented from rotating relative to the mounting plate (3) by the provision of a notched washer (10). The applied rivating pressure is sufficient to generate a permanent load in the rivet which guarantees the friction-generated retention in the joint. The rivet (7) has a coating (13) made of a plastic material of low friction, which is applied by means of a powder-coating method. This coating (13) provides a bearing face of low friction on the rivet head. A substantial simplification of the construction of the support is possible thereby.
Description
This invention concerns improvements in stays suitable for windows. In particular, stays which are called friction stays and of the kind herein defined as comprising one or more arms or links and/or mounting plates (such arms, links or plates herein also called stay parts) that are connected together by one or more friction pivot joints which permit restrained pivotal movement of the stay parts, the stay being adapted and arranged for mounting on a sash and securing to the associated frame so that the sash is supported for frictionally restrained movement on and relative to the frame.
Such stays of the defined kind are conventionally used in pairs, one each side of the sash and associated frame. The sash may be hung on the stays for top, bottom or side opening. The frictional restraint to maintain the sash in an adjusted position is provided in the pivot joints by suitable design and manufacture of the pivot joints.
It is already known to provide in a stay of the defined kind a pivot joint including a rivet which extends through the stay parts with the rivet being clinched in a manner to generate forces which, after clinching, provide the frictional restraint. Generally, the rivet shank is in tension so that pressure is applied directly or indirectly to the stay parts by the head and clinched tail of the rivet. Accordingly, the rivet is subject to extreme forces in service when the stay supports a glazed sash.
The operation of the stay when fitted in a window must be smooth and wear of the pivot joint must be avoided. Usually, one of the stay parts is fixed relative to the rivet and this is conveniently the stay part adjacent the clinched tail. Thus the other stay part which is adjacent the rivet head pivots about the rivet shank. To maintain the loads required in the joint for the frictional restraint, metal to metal contact should be avoided to prevent wear. Furthermore, metal to metal contact is undesirable because of the possibility of corrosion or seizure.
To facilitate such smooth operation and to prevent wear, it has been proposed previously to provide a counterbore or similar recess in the stay part underlying the rivet head. A plastics washer or annular bushing is seated in such recess and confined therein by the rivet head to ovoid deformation and spreading of the washer. It may not be appreciated that under the loads applied during clinching and in service, extreme forces will make the plastics flow to fill adjacent voids, and if the plastics washer or bushing were not so confined, then in due time, the washer would deform to such an extent that the joint would become sloppy with loss of all designed frictional restraint.
Accordingly, when such washer or bushing of plastics material is fitted, the provision of the recess is essential. Such recess is acceptable where the material of the stay part is of sufficient thickness and strength, however, it imposes limitations on size, material and adds to manufacturing costs.
According to this invention, we provide a friction stay of the kind defined wherein the friction pivot joint comprises a rivet clinched to hold two stay parts together for frictionally restrained movement and the rivet comprises a metal body having a coating of a low friction plastics material applied by a powder coating technique.
By this invention, the coated rivet provides surfaces which are of a low friction material that engage with the parts of the stay so that the special features of the separate washer and counterbore underlying the head of the rivet can be avoided with substantial savings.
Preferably, the plastics material is selected from suitable low friction materials such as nylon, neoprene, polyester or epoxy resin, all of which can be applied by powder coating techniques.
We have found that such coatings of plastics have properties that are surprisingly different to extruded or moulded forms. In particular, we have found that when the plastics are applied and bonded to a metal substrate, the plastic coating has mechanical and physical properties such that the plastic is less compressible and less able to deform under load. In the case of certain grades of nylon suitable for powder coating, the increase in resistance to compression is 20 times greater than the nylon in moulded or extruded form. From this surprising finding, it has been possible to provide a coating on the rivet which, when subject to the specified loads to be applied, does not spread or deform and can function properly in service by providing the low friction surfaces for the pivotal movement of the stay parts.
Preferably the coating on the rivet is between 0.003 to 0.018 (0.08mm to 0.46mm) thick. We have found that such range of thicknesses is sufficient to withstand the clinching pressures and to take up any surface imperfections such as might exist in the stay part under the head of the rivet.
It has been found that the plastic coating can be applied to many types of rivets varying in shape and material. Thus by the present invention it is possible to change the rivet type at will in manufacturing the stays to accomodate various requirements, this being particularly important when the same type of stay may be used for a wide range of sash sizes and therefore be subject to widely differing loads and stresses in service. Previously it has not been possible to simply change the rivet type, particularly rivet material because of the need to ensure that the rivet does not corrode or react with the metal stay parts engaged by the rivet, especially the rivet shank. The plastics coating encloses the rivet head and the shank so that there is no risk of intermetallic engagement.
It is also surprising that we have found that such plastics coating is sufficiently strong to withstand the clinching pressures and operation without rupture or damage to the coating on the head of the rivet. Even the conventional clinching operation, such as spinning or rolling the tail of a hollow rivet, or peening over the tail of of the rivet does not damage the coating on the rivet shank.
It will be appreciated that this apparent simple solution overcomes many of the practical manufacturing and design problems associated with mass manufacture of friction stays.
The two relatively movable stay parts associated with each pivot joint may be separated by a spacer, and this may also comprise a washer having a plastics coating bonded thereto.
An exemplary embodiment of a stay in accordance with this invention will now be described with reference to the accompanying drawing wherein :FIGURE 1 is a plan view of a friction stay in the open position;
FIGURE 2 is an exploded isometric view of the parts forming a friction pivot joint; and FIGURE 3 is an enlarged section of the rivet of the pivot joint.
With reference to the drawing, the stay comprises a cranked link 1 and an arm 2. There is a mounting plate 3 adapted to be mounted on a frame of a window by means of screws or the like through holes 4 provided in the plate. There is another mounting plate 5 adapted to be mounted on a sash by means of screws or the like through holes 6 provided in the plate S . Each mounting plate 3,5 is of angle section.
The link and arm are connected to the respective mounting plates by means of friction pivot joints. Each pivot joint comprises a rivet 7 which has a coating 13 of plastics material. The rivet 7 Is arranged to extend through a piercing 8 in the end of the link and another piercing 9 in the mounting plate. The
51638 piercing 9 is plunged in the mounting plate to provide a recess in the underside of the plate to receive a serrated washer 10 and the eventual clinched tail of the rivet. The plunge surrounding the piercing 9 provides a raised platform 11 on which a plastics coated annular washer 12 is seated.
The friction pivot joint is riveted together with the tail of the rivet being clinched on the serrated washer 10 which, on clinching, prevents the mounting plate moving relative to the rivet. The loads applied to the rivet head and the rivet tail during the clinching operation are such that the joint is achieved with residual forces acting therein to provide the necessary frictional restraint to pivotal movement of the arm relative to the plate so that the weight of the sash carried by a pair of such stays is supported and maintained in the adjusted position.
Whereas previously it has been essential to provide some form of low friction washer under the head of the rivet and to confine this in a recess under the head of the rivet, such can now be avoided due to the plastics coating on the rivet.
As will be seen in Figure 3, the plastics coating extends down the shank of the rivet and provides a low friction surface bounding the edges of the piercings so that metal to metal contact is avoided. This reduces any risk of wear and corrosion. Furthermore, as the entire head of the rivet is coated with the plastics, the exposed head of the rivet is also protected from weathering and corrosion in service. This protection of the xivet enables the material of the rivet to be chosen without regard to the material of the stay parts such as the arms, links and plates. Thus, metals which are normally regarded as being incompatible, such as mild steel and aluminium, can be employed to take the benefits of stronger rivet materials or strong light section stay parts.
As aforementioned, this possibility arises from 5 the fact that the rivet is coated with a low friction plastics material by a powder coating technique which has been found to give the plastics coating special characteristics in resistance to compressibility and deformation under load. The plastics materials used may be of the thermoplastic or thermosetting type and selected from the preferred plastics of nylon, neoprene, polyester and epoxy resins. Suitable coating processes include hot dipping, tumbling, electrostatic or a wet process followed by a temperature curing. The coating process including the curing may be selected in accordance with the material of the particular type of rivet, and in this regard due consideration may be given to post thermal treatment of the rivet material on curing, for instance with aluminium alloy rivets.
It is considered that with some rivet materials, the bonding of the plastics coating may be increased by pretreating the surface of the rivet or providing a rivet with a surface to provide mechanical keying.
The provision of the plastics coating provides many manufacturing advantages, particularly to assist in automated assembly and rivet feeding whilst avoiding the prior steps of a separate washer and recess in the stay part underlying the rivet head.
As shown in the stay of the exemplary embodiment, the stay may include a spacer washer 12 to separate the stay parts, and this washer may also be coated with the plastics coating as aforementioned. However, this is not regarded as essential and an ordinary fibre washer could be used provided that it could withstand the loads and other conditions arising In service.
Furthermore, although It has been found possible to avoid the provision of the recess in the stay part underlying the head of the rivet, in some applications it might be desirable to contain the rivet head in a recess so that the head does not stand proud of the arm or link. In such case the arm or link may be recessed to seat the coated rivet head.
With such an arrangement, metal to metal contact between the rivet and the stay part is still avoided, and seizure of the head rim with the inside of the recess is avoided whilst ensuring that low frictional engagement on pivotal movement of the stay part is maintained.
It will also be appreciated, the stay arms, links or plates can be of different configurations (including sections) depending on the duty required.
Published U.K. Patent Application No. 2 083 129A describes and claims a friction stay having plastics coated stay parts (arms or links and/or mounting plates).
Patent Specification No. describes and claims a friction stay having a pivot joint incorporating a plastics coated washer.
Claims (10)
1. A friction window stay of the kind defined wherein the friction pivot joint comprises a rivet clinched to hold two stay parts together for frictionally 5 restrained movement and the rivet comprises a metal body having a coating of a low friction plastics material applied by a powder coating technique.
2. A friction stay according to claim 1 wherein the plastics material Is selected from the group of 10 materials being nylon, neoprene, polyester and epoxy resin.
3. A friction stay according to claim 1 or claim 2 wherein the coating has a range of thickness of 0.003“ to 0.018 (0.08mm to 0.46mm). 15
4. A friction stay according to any one of the preceding claims wherein the two stay parts comprise a mounting plate and an arm, and a washer is interposed between the plate and the arm·.
5. A friction stay according to claim 4 wherein the 20 interposed washer comprises a metal body having a coating of plastics material.
6. A friction stay according to any one of the preceding claims wherein the tail of the rivet is clinched to the underside of the mounting plate and is 25 non-rotatably secured thereto.
7. A friction stay according to claim 6 wherein a serrated washer is interposed between the clinched tail of the rivet and the mounting plate to prevent rotation of the rivet relative to the mounting plate. 30
8. A friction stay according to claim 7 wherein the head of the rivet is flat and annular and the plastics coating provides a low friction bearing surface engaging the arm.
9. A friction stay according to any one of claims 4 to 8 wherein the mounting plate is formed with an annular platform on which the washer interposed between the arm and the plate is supported with the underside 5 of the mounting plate being formed with a recess in which the clinched tail of the rivet is received.
10. A friction stay substantially as hereinbefore described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8028561 | 1980-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE812019L IE812019L (en) | 1982-03-04 |
| IE51628B1 true IE51628B1 (en) | 1987-01-21 |
Family
ID=10515844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2019/81A IE51628B1 (en) | 1980-09-04 | 1981-09-01 | Improvements in stays for windows |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5777774A (en) |
| AU (1) | AU545587B2 (en) |
| BE (1) | BE890224A (en) |
| DE (1) | DE3133801A1 (en) |
| ES (1) | ES8205925A1 (en) |
| FR (1) | FR2489400B1 (en) |
| IE (1) | IE51628B1 (en) |
| IT (1) | IT1169272B (en) |
| NL (1) | NL8104059A (en) |
| NZ (1) | NZ198257A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3342953C2 (en) * | 1983-11-26 | 1987-04-02 | Siegenia-Frank Kg, 5900 Siegen | Display device |
| DE3442364C1 (en) * | 1984-11-20 | 1991-01-24 | Hautau Gmbh W | Rebate-concealed fitting for tilt-and-pivot casement windows or doors |
| AU658785B1 (en) * | 1994-03-30 | 1995-04-27 | J. Kral | Venturi window |
| DE19913435A1 (en) | 1998-10-05 | 2000-09-28 | Vieler Int Kg | Sales and / or refrigerated counter with a vertically swiveling front pane |
| DE19845741A1 (en) * | 1998-10-05 | 2000-04-13 | Vieler Int Kg | Sales or refrigerated counter; has pivoting front panel with lifting catch unit fixed to supports, where lifting catch unit has link arms fixed to supports by rotation connections |
| DE10128295A1 (en) * | 2001-06-12 | 2003-01-02 | Gummi Stricker Gmbh & Co Kg | Industrial swing door with sliding link |
| US7654745B2 (en) * | 2006-04-28 | 2010-02-02 | Pem Management, Inc. | Clinch spot bearing |
| CN103486120B (en) * | 2013-08-06 | 2015-12-02 | 苏州佳世达电通有限公司 | The fixed structure of plate and rivet and method |
| CN105133980A (en) * | 2015-09-10 | 2015-12-09 | 杨帆 | Super-load-bearing hidden hinge, window frame structure with hinge and using method of hinge |
| EP3792423B1 (en) * | 2019-09-06 | 2022-08-17 | VKR Holding A/S | Window module with lifting assembly, and roof light system comprising such a window module as a ceiling module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2326455A (en) * | 1942-03-13 | 1943-08-10 | Glenn L Martin Co | Fastening means |
| FR1411410A (en) * | 1964-10-12 | 1965-09-17 | Process in particular for coating penetrating or joining elements as well as elements conforming to those obtained by the present process or similar process | |
| GB1163798A (en) * | 1966-07-18 | 1969-09-10 | Interlock Ind Ltd | Improvements in Window or the like stays |
| CA1013798A (en) * | 1973-01-17 | 1977-07-12 | James W. Cairns | Composite bearings |
| US3979351A (en) * | 1973-01-26 | 1976-09-07 | Hi-Shear Corporation | Protective coating material |
| US3939529A (en) * | 1973-03-16 | 1976-02-24 | Interlock Industries Limited | Window or the like stays |
| JPS54167532U (en) * | 1978-05-16 | 1979-11-26 |
-
1981
- 1981-08-12 AU AU74032/81A patent/AU545587B2/en not_active Ceased
- 1981-08-26 DE DE19813133801 patent/DE3133801A1/en active Granted
- 1981-08-31 JP JP56136939A patent/JPS5777774A/en active Granted
- 1981-09-01 NL NL8104059A patent/NL8104059A/en not_active Application Discontinuation
- 1981-09-01 IE IE2019/81A patent/IE51628B1/en not_active IP Right Cessation
- 1981-09-03 ES ES505167A patent/ES8205925A1/en not_active Expired
- 1981-09-03 NZ NZ198257A patent/NZ198257A/en unknown
- 1981-09-04 IT IT23798/81A patent/IT1169272B/en active
- 1981-09-04 FR FR8116822A patent/FR2489400B1/en not_active Expired
- 1981-09-04 BE BE0/205866A patent/BE890224A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL8104059A (en) | 1982-04-01 |
| AU7403281A (en) | 1982-03-11 |
| DE3133801A1 (en) | 1982-06-03 |
| DE3133801C2 (en) | 1991-01-10 |
| NZ198257A (en) | 1983-07-29 |
| AU545587B2 (en) | 1985-07-18 |
| IT8123798A0 (en) | 1981-09-04 |
| FR2489400A1 (en) | 1982-03-05 |
| ES505167A0 (en) | 1982-06-16 |
| BE890224A (en) | 1982-01-04 |
| IT1169272B (en) | 1987-05-27 |
| ES8205925A1 (en) | 1982-06-16 |
| IE812019L (en) | 1982-03-04 |
| JPH0140199B2 (en) | 1989-08-25 |
| FR2489400B1 (en) | 1988-04-01 |
| JPS5777774A (en) | 1982-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |