JPS5998986A - Pivot bearing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pivot bearing, and more particularly to a pivot bearing for a friction type window restraint.

Window stanchions for the adjustable attachment of sashes to window frames include pivot bearings of either friction or non-friction type. In a friction-type pivot bearing, friction at the time of rotation is the basic means of holding the window in its open position. Such pivot bearings, whether of the friction or non-friction type, are used in conjunction with split vents or similar fasteners to hold the components together. Generally, a pivot bearing is located between an arm and a base mounting plate such that the arm is movable relative to the mounting plate about the axis of the double rivet.

Various problems arise from the need to include rivets to connect the components together.

For example, if the window in question is to be able to "retract" to a considerable degree when closed, the shape of the window sill is fundamentally very important. Therefore, when forming the window sills, the operator must accurately determine the center position of each pivot bearing, and ensure uniform positioning from one window sill to the other window sills. is important.

Furthermore, the presence of rivets γf adds not only the component cost but also the assembly cost to the final construction cost by 1.j.

The purpose of this invention is to provide a rivet or similar rock (
The object of the present invention is to provide an effective pivot bearing or a pivot bearing that can be set without the need for locking fixtures.

According to the present invention, each of the
and a pivot bearing between a second component, the hollow annular boss being formed as an integral part of the first component by drawing the base material of the first component;
The opening 1'' in the i2 component described in (liii) is provided with the annular boss in a pivot shape within the opening, and the cross section Iff of the free end of the annular boss is larger than the gap 1''. A pivot bearing is provided which pressurizes the free end of the annular boss, thereby retaining the second component pivotally to the annular boss.

In a preferred form of the invention, a self-lubricating, wear-resistant plastic material is disposed within each bearing to prevent metal-to-metal contact between each bearing component. In a preferred form, the sleeve is a wear-resistant plus 1,000-inch sleeve with seven lugs located between the first and second components, and the sleeve is in contact with the outer wall of the annular boss. ” and the wall surface. In addition, each plastic key is pressed against the free end or outer end of the material sleeve 7 and the free end or outer end thereof is pressure coated and the second component. metal-to-metal contact with the material surrounding the opening in the opening.

Next, the present invention will be explained with reference to the accompanying drawings.

As mentioned above, this pivot bearing is particularly suitable for window restraints (u+
1ndou+5tay), and an example of using this bearing as a window sill will be described below.

In the drawings, the first component is designated by the numeral 10 and, when used in a window hold, is the base or mounting plate of the window hold. This mounting plate is for mounting either a window frame or window sash. The second component is shown at 11''C and includes an arm that extends between the sash and the mounting plate of the frame when used in a window sill.

The second component ``opening in l'' 12 is drilled, and this opening 12 is preferably countersunk to form a recess 13. When the pivot bearing is used in a window sill, in a preferred form of the invention the first and second components are formed from respective stainless steel or aluminum alloys.

The hollow annular boss 14 is formed as an integral part of the ff1l component 1o extending from the base or original material. In a preferred embodiment of this invention, the boss 14
is drawn by first forming a small hole in the 151 component 10, which hole accurately centers the pivot bearing to be formed.

One or more embedding operations are performed to form the boss 14 by squeezing (stretching) metal from around the opening formed in the first component 10.

Preferably, a wear-resistant plastic material is incorporated within the bearing to prevent metal-to-metal contact. The Plastiref material is preferably a nylon material from which the flannoy sleeve 15 is formed. This sleeve 15 is provided so as to cover the boss 14, and the seven flange 16 is provided facing the surface of the fjS1 component 10. And the second component "1 is provided so as to cover the boss 14 and the sleeve 15,
Continuing with the sleeve 15, the free or outer end 18 of the boss 14 is swaged or pressure coated to form a cross-sectional area larger than the diameter of the opening. This swaging or working coating pressurizes the free end of the sleeve 1, thereby pinching the metal-to-metal contact between the surfaces of the second component, the boss and the first component in the bearing. The wear resistant sleeve 15 and the 7 flange 16 ensure that i months≦l. The recess 13 ensures that the stamped or pressure-coated end 10 is seated in the recess, thereby keeping the front part at the size of the rear part, i.e., the pivot I/connection. A nylon-containing cooling flow is achieved with a pressure F of the boss i 4 which has a minimum thickness a and is deformed.

A pivot bearing is thus provided, in which a beam vent or similar fixture is not required. This pivot bearing is suitable for adjusting the opening of the window, and the frictional force in this bearing serves to keep the window open.In addition, this pivot bearing is designed to handle high loads on the window sill. Can be shaded,
That is, in situations where it is necessary to attach a large sash or a heavy double-glazed sash (11), the mounting plate can be fixed to the window frame by passing a mechanical fastener through the center of the hollow annular boss 14. Such a mounting method also helps to resist any bending moment applied to the pivot bearing by the weight of the sash on the arm, and this also helps to resist any bending moments applied to the pivot bearing by the weight of the sash on the arm. This becomes a problem when used in hanging windows.

If high frictional forces are required in a special bearing and/or leverage forces are applied to the bearing during the open window condition, the bearing may be configured as shown in FIG.
is installed at the free end of the boss 14. This washer 40
A recess 41 is provided in the recess 41, and an inverted portion of the boss is provided therein. A washer 42 made of a wear-resistant plastic material is provided between washer 40 and the surface of tjS2 component 11 to prevent metal-to-metal contact.

A high level of frictional force is obtained by interposing another washer 42 between washer 40 and the surface of second component 11. Additionally, any leverage applied to the deformed or everted end of boss 14 will not wear out the deformed end by bearing that end directly on washer 40.

The pivot bearing according to the invention has a special strong link between the base plate and the arm so that the hollow annular boss is connected to the base plate rather than as a separate component as in known riveted connections. It is considered an embodied part. As with known friction window bearings, it is preferred to lock the tail of the wing rivet to prevent rotation of the rivet. However, the problem is how to lock the tail. The bearing of this invention eliminates rivets and is of great quality =
solve the problem. An additional requirement to increase the strength of this bearing is that the diameter of the boss is much larger than the diameter of the rivet in known riveted bearings, and in this way the load applied to the bearing is and distributed over a wide area of the arm.

A problem with window restraints in which the bearing is located near the end of the arm is that the finishing press operation applies outward pressure that can distort the arm. However, according to the bearing of the present invention, the finishing force is directed downward, and the bearing, which is connected through the open plastic material between the sleeve and the end of the arm, reduces distortion of the arm.

When used in friction bearings, the pressure applied to the deformable end of the annular sleeve is applied over a larger diameter than in those with riveted friction bearings. This allows a high level of frictional forces to be obtained, which in turn allows for the production of substantially smaller and cheaper stays for supports of a given window size.

FIGS. 2 and 3 are diagrams for explaining a window sill arrangement d1 in which the pivot bearing according to the present invention can be used more effectively. This window restraint consists of a sash mounting plate 20 and a pair of arms 21 and 22. both arms 21
and 22 are pivotally coupled to the sash mounting plate 2o provided with the pivot bearing of the present invention. The other ends of the arms 21 and 22 are fitted with base mounting plates 23 and 24, again with pivot bearings according to the invention.
It is attached in a pivotal manner to the In the preferred form of the window sill, each mounting plate and each arm are made from stainless steel.

The Hi plate 23 has an abbreviated shape and has an upright portion 26.
It has a base portion 25 with. The back of the upright portion 26 is a protrusion 27 that forms a stop that engages with the linear surface of the arm 21 in the fully open position of the retainer. In a preferred form of design, the wear-resistant forage forming a bearing between the arm 21 and the base mounting plate 23 covers substantially the entire surface of the mounting plate and the base portion 25 and the arm 21 19 years ago
, the interior 30 is formed. For the reasons mentioned above, arm 2
] The bearing used to connect the mounting Xi plate 23 is the fifth bearing.
You can make it into the shape shown in the figure.

In a variant of the invention, the sash mounting plate 20 can be formed as two separate parts, thus:
The retainer consists of two completely separate arms, each with a mounting plate.

It is not a woody matter to form a deep recess for the deformed end of the boss - see FIGS. 4 and 5.

In friction type bearings, where the nylon material is subjected to pressure,
The end of the nylon sleeve is connected to the inverted end 14 of the boss 14.
captured below.

Although in the above description the annular boss is shown as being formed from the base plate, this is so that the annular boss can be placed through an opening in the mounting plate comprised of the base metal of the arm. It is not necessary to do so. This latter arrangement is particularly advantageous when the arm and the retainer mounting plate are made of aluminum or an aluminum alloy, since the thick part of the arm is generally made of thick metal such that it can form a boss. It is suitable for cases where

A preferred method of forming boss 14 uses a punch and gouer set up substantially of the type shown in FIG. The die 31 has a polished hole 32 of circular cross section with an inwardly tapered lead 32a.

Punch 33 includes a body 34 with a cylindrical lead end 35 connected to an angled shoulder 36 . 1 portion 36 is preferably substantially 35° to 55° with the axis of body portion 34;
A further one is preferably made at an angle of 45°. The diameter of the main body portion 34 is made larger than the maximum diameter dimension that is substantially twice the wall thickness of the boss to be formed.

The lead end 35 has a substantially constant diameter over its entire length, which diameter is preferably smaller than the diameter of the body 3.1. The angled shoulder 3G as shown ensures that the stretched metal during insertion of the punch 33 flows around the main wood 3. The corners of the wings 36 are slightly rounded to prevent shearing of the metal during formation of the boss.

The lead ends of holes 32 are also slightly rounded to prevent shearing of the metal. The depth of the hole 32 is substantially greater than the length of the boss to be tapped.

An annular n-section (not shown) may be formed within the hole 32 to ensure that the end of the boss is compact and of constant length when formed. , a metal body (such as a window retainer arm) that is to form a boss is installed between the punch 33 and the gouer 31. The punch 33 is then brought into contact with the metal and applies pressure thereto. The lead end 35 pierces the metal, and when the lead end 35 pierces the metal gou 1+11 end, the slag of the metal is discharged.

The angled n-section 36 forces the metal surrounding the opening formed by the lead end 35 laterally and downwardly, causing the metal to move downwardly within the hole 32. The final wall thickness of the boss is obtained by inserting the body portion 34 into the hole 32. The angled portion 36 may pass through the formed boss at right angles in one embodiment of the method.
A shoulder of thickness greater than the wall thickness of the boss is thus formed at the free end of the position. The increased thickness at the free end allows the free end to be everted without appreciable cracking. Even when inverted, f:+ the free end of the boss has a maximum effective thickness that imparts strength r:I to the bearing when tightened.

The tapered hole 32a causes the outer surface of the boss to be tapered, and the uniform diameter body 34 causes the hole in the boss to have a constant diameter.

Accordingly, the wear-resistant plastic bushing shown in more detail in FIG. 6 is tapered along the length of the illustrated sleeve 15.

The free end of boss 14 is deformed by a punch and anvil instrument of the type shown in FIG. The punch 37 has a protrusion 37a at the free end of the boss 14, which is installed in the bore, and the anvil 38 has a protrusion 38a connected to the lower end of the bore. Projection 37a
The rounded part 39 at the base of the punch turns the free end of the boss inside out when the punch meets the anvil, while this turning action combined with the undeformed tapered wall of the boss The sleeve 15 is held between the boss and the wall of the opening 12 by pressing the upper wall of the boss in the outer diameter direction. A somewhat rounded portion 3 Ei l) at the base of the projection 38a curves the bore wall at the base of the boss j4. Thus, upon deformation of the boss, both axial and radial pressures are applied to the plastic-containing material, thereby setting the frictional forces at the required level during the bearing.

A wear-resistant plastic lug material is not always necessary for pivot bearings formed from stainless steel.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one pivot bearing that connects the metal components of 2-), Fig. 2 is a front view of a window sill incorporating the pivot bearing according to the present invention, and Fig. f53 is A of Fig. 2.
AaIr side view, FIG. 4 is a sectional view of a modified example of the pivot bearing, FIG. 5 is a sectional view of another modified example of the pivot bearing,
FIG. 6 is a cross-sectional view of the wear-resistant plastic element used in the bearings of FIGS. 1, 3, and 4, Jl'S? The figure is a sectional view of the punch and gouer tool used to form the boss from the original metal, and Figure t58 is a sectional view of the punch and anvil tool used to press cover the end of the boss. 10th... constituent element, 1]... pi
S2 component, 12...Open [J, 1
3... hollow, 14... boss,
15...Sleeve, 2()...Sash mounting plate, 21.22...Arm, 23.24
...Base mounting plate, 31 ...Die, 3
3...Punch, 3ll...
Main body part, 35...Leat' end, 36.
...Part 11, 37...Punch,
・10・・・Wannyya, ・41・・・Depression,
42... Onesie? . Patent Applicant Interlock Ingestries Limited Agent Patent Attorney Aoyama Aoyama and 1 other person F2O3 Procedural Amendment (Mutsu) December 27, 1980 Director General of the Patent Office 1, Indication of Case 1988 Patent Application No. 195122 No. 2, Name of the invention: Pivot bearing 3, Person making the amendment Relationship to the case Patent applicant 4 Attorney 5, Date of amendment order: Voluntary, 6. Target of amendment: Claims of the specification, detailed description of the invention, and brief description of the drawings, and 15F'#-z'
+7. Contents of amendment (1) The scope of claims in the specification will be corrected as shown in the attached sheet. (2) In the specification, page 7, line 15, "commanding" is corrected to "stretching." (3) On pages 2 and 7, line 19 to line 2 of page 8 of the same, the phrase ``In addition to providing the above-mentioned annular boss...the second component'' was replaced with ``In addition, the free end of the above-mentioned annular boss... The second component is coated under pressure.'' (4) "Ibid.", page 2, 11, lines 3 to 7, it says "Installed...Achieved." and ensures that the cooling flow under bonding pressure through the deformed boss 14 contains the resulting nylon. ” he corrected. (5) Same as above, same page, line 12 says "friction type bearing",
This is corrected to "bearings that can provide a high level of frictional force." (6) Same as above, on page 14, line 19, the phrase "1-base mounting plate" is corrected to read "frame mounting plate." (7) Same as above, p. 15, line 9, replace the phrase “base mounting plate” with “
Frame mounting plate” is corrected. (8) Same as above, page 17, lines 5 to 6 [It is made larger than the maximum diameter dimension. " is corrected to read "The diameter is smaller than the maximum diameter of the hole 32 having the diameter dimension." (9) Same as above, on page 20, lines 15 to 16, the words [Fig. 3 and Fig. 4] are corrected to [Fig. 4 and Fig. 5]. (10) Same as above, on page 21, line 5, the phrase "base mounting board" is corrected to read "7 lem mounting board." (11) Amend Figure 2 as shown in the attached sheet. Hereinafter (Attachment) 2. Claims (1) In a pivot bearing between a first and a second component, the integral part of the first component is formed by stretching the base material of the first component. a hollow annular boss formed as a hollow annular boss, and an opening 1 in the second component; What is claimed is: 1. A pivot bearing characterized in that the two components are held in a pivot shape by an annular boss by pressurizing and coating the two components. (2) A wear-resistant plastic bush constituting a sleeve with seven flanges is provided in the bearing, and the sleeve is disposed between the outer wall of the annular boss and the wall surface of the opening, and the flange is disposed between the first and second flanges. and a second component, and the bearing is placed under sufficient pressure by the coupling of the first and second components to create a desired level of frictional force within the bearing. Pivot bearing according to item 1. (3) The pivot bearing according to claim 2, wherein the pressurized coated end of the annular boss is installed in the recess of the second component. (4) The pressure-coated end of the annular boss is engaged with a washer provided on the boss before the free end of the boss is pressure-coated, and the washer is connected to the i4 abrasive plastic material. The pivot bearing according to claim 2, wherein the pivot bearing is separated so as not to come into contact with the second component. (5) The pivot bearing according to claim 1, wherein the pressurized end portion of the annular boss is provided on the opposite side of the second washer. (6) The hole of the annular boss has a substantially uniform diameter, and the outer wall surface of the annular hole is tapered toward the free end of the boss, so that the part to be pressure coated during pressure coating is Adjacent outer wall portions are pressed outward to place the wear-resistant plastic feed under pressure in both radial and axial directions within the bearing.
Pivot bearing according to item 1. (7) In a window sash in which a sash is adjustably mounted within a window frame body, at least first and second components are pivotally connected to each other and a pivot bearing between the first and second components is provided. 2. The pivot bearing comprises a hollow annular boss formed as an integral part of the first component by stretching the base material of the first component, and an opening in the second component. The annular boss 1 was arranged in a pivot shape in the opening, and the free end of the A-shaped boss 2 was covered under pressure so that the second component of the ball was held in the annular boss in a pivot manner. A window sill characterized by: (8) A wear-resistant plastic bush constituting a sleeve with 7 flange is provided in the Jz bearing, and the sleeve is disposed between the outer wall of the annular boss and the wall surface of the opening, and the 7 lange is The bushing is placed between the first and second components, and the bushing is subjected to sufficient pressure due to the coupling of the first and second components to create a required level of frictional force within the bearing. Window stubs mentioned in scope item 7. (9) A method of displacing the pivot shafts in the first and tIS2 components, comprising: forming an opening in the second component;
a step of integrally forming an annular boss in the first component by forming a small opening in the component and drawing the peripheral portion thereof; and installing the annular boss in the opening. and applying pressure to cover the free end of the annular boss with a cross-sectional area larger than the opening at the free end of the annular boss. (10) said annular boss is formed by punch and tie means, said die having an inwardly sloping aperture, said punch substantially having a lead element engageable with said small aperture; an outwardly sloping shield connected to a body having a uniform diameter, the punch and gouging means sloping toward a substantially uniform diameter hole and a free end of the boss thereof; 10. A method as claimed in claim 9, characterized in that they cooperate to form an annular boss having an outer wall. (11) a 7-run sleeve made of a wear-resistant plastic material is placed over the annular boss, and the 7-run sleeve surrounds the base of the annular boss before the second component covers the annular boss; [11] The method according to claim 9 or 10, wherein the method is adapted to engage with the surface of the first component. (12) A patent claim in which the pressure coating of the free end of the annular boss is accompanied by an outward pressure applied to the wall of the hole in the boss adjacent to the wall of the boss to be pressure coated. The method according to item 11. (13) In a window sash in which one adjustable sash is attached to one window frame, at least the sash mounting plate, the frame body mounting plate, each end of these mounting plates, and the claims fIS
A window restraint comprising an arm pivotally connected via a pivot bearing according to claim 1. II

Claims (13)

[Claims] (1) in a pivot bearing between the first and twelfth components; an opening in the component;
The annular boss is provided in a pivot shape within the annular boss, and the cross section of the free end of the annular boss is made larger than the gap 1, and the g+ + I+ end of the annular boss is covered under pressure. A pivot bearing characterized in that the second component is pivotally held by an annular boss. (2) A wear-resistant plastic or tink bush constituting a sleeve is provided in the bearing, and is placed between the outer wall of the annular boss and the wall surface of the opening. the bushing is placed under sufficient pressure due to the coupling of the first and second components; and the bushing is placed under sufficient pressure to create a desired level of friction within the bearing. 1, who has generated power? A pivot bearing according to claim 1. ” (3) The pivot bearing according to claim 2, wherein the pressure coated end of the annular boss is installed in the recess of the second component. (4) The pressurized end of the annular boss is engaged with a washer provided on the boss before the free end of the boss is pressure coated, and the washer is coated with wear-resistant plastic. The pivot bearing according to claim 2, wherein the feature ε' is separated so as not to come into contact with the second component via the pivot bearing. (5) The pivot bearing according to claim 14, wherein the pressurized covered end of the annular boss is provided on the opposite side of the one-shaft. (6) The hole of the annular boss has a substantially uniform diameter, and the outer wall surface of the annular hole is tapered toward the free end of the boss, so that the part to be pressure coated during pressure coating is The adjacent outer wall surface portion is pressed by an external force, and the above-mentioned abrasive plastic material It is strained so that it is under pressure in both radial and axial directions within the bearing. Item 2) refers to the pivot bearing described in item 1. (7) In a window sill adjustable-mounted within a window frame, at least first and second components pivotally connected to each other and a pivot between the first and second components; The pivot bearing has a hollow annular boss formed as a monolithic part of the first structural element by stretching and elongating the base material of the F51 component described in Section 2; 2 annular bosses are provided in the openings in the form of a pivot, and the cross-sectional area of the free end of the annular boss is larger than that of the 1st part of the annular boss. 1. A window restraint characterized in that the free end is pressure coated, thereby 1) twelve components being pivotally held in an annular boss. (8) A wear-resistant plastic bush constituting a sleeve is provided within the bearing, and the bushing is made of wear-resistant plastic.
The bushing is disposed between the outer wall of the annular boss and the wall surface of the opening, and the seven flange is disposed between the first and second components, and the bushing is fully connected to the first and second components. 8. A window restraint according to claim 7, wherein the window restraint is subjected to pressure to generate a required level of frictional force within the bearing. (9) A method for forming a pivot bearing in the first and fjS2 components, comprising: forming an opening in the second component; forming a small opening in the first component; and forming a small opening in the first component; By companding the part! ! a step of integrally forming an annular boss on the l's1 component; a step of installing the annular boss in the opening; and a step of installing the annular boss in the opening; Pressure-covering the free end of the annular boss by using the annular boss. (10) said annular boss is formed by a punch and gouging means, said gouging having an inwardly sloping ring, while said punch engages with said small opening and substantially engages with an extensible lead element; and an outwardly sloping shoulder connected to a body having a uniform diameter, the punch and gouging means having a substantially uniform "punch and gouging means directed toward the shuttle bore and the free end of its boss." Special features a'f R?1 which are made to work together to form an annular boss having an inclined outer wall.
The method described in item f59. (11) The J2 annular boss is covered with a 7-lunge (resleeve) made of wear-resistant brass tink feed, and the second
Patent R1' in which the seven flange engages with the surface of the first component surrounding the base of the two annular bosses before the component covers the annular boss or fjSl t : The method described in section. (12) Pressure coating iI (pressure coating i) of the free end of the annular boss
1: A special feature d' with outward pressure applied to the wall of the hole in the boss in proximity to the wall of the boss to be coated.
The method according to claim f511. (13) In a window sash in which a sash is adjustable in a window frame body, at least a sash mounting plate, a frame mounting plate,
A window restraint comprising an arm pivotally connected to each end of a mounting plate of the tube via a pivot bearing as claimed in claim 1.