JPS59131026A - Flat bearing with flange and its manufacture - 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 plain bearing having a seven-lung thrust surface and a method for manufacturing the same.

In conventional flanged plain bearings with continuous flange portions, it is difficult to lubricate the entire thrust surface with fresh lubricant.

An object of the present invention is to provide a flanged plain bearing having a thrust surface with excellent lubrication properties.

Conventional methods for manufacturing flanged plain bearings have the disadvantage that the radial size of the flanges is significantly limited due to the tension forming of the material for flanging. Furthermore, it is difficult to obtain a smooth cylindrical shape without distortion due to the tension forming of the flange.

Therefore, a second object of the present invention is to provide a method for manufacturing a seven-flange plain bearing that does not have the above-mentioned drawbacks.

According to one aspect of the present invention, a method for manufacturing a plain bearing with seven flange, which is manufactured from a bearing material consisting of a back metal (metallic back plate) and a bearing lining made of a bearing material, includes: forming a series of slits in a first region of the bearing material; bending this first region substantially at right angles from the rest of the material; and bending the entire bearing material into a cylindrical shape or a cylindrical portion shape. have Note that the slit formation must be performed before at least one of the bending and bending operations.

The bending of the first region may be performed before the bending of the material, or alternatively, the bending of the material may be performed before the bending of the first region. The slit forming is preferably performed before both the bending of the material and the bending of the first region, but it must be performed before either one of the two operations. Must be.

3- It is preferable that the base end of each of the slits be curved. This can reduce the risk of the proximal end of the slit tearing.

It is preferable that the bending line, which is the boundary between the bearing part and the flange part, starts from the base end of the slit.

In this way, bending lines can be avoided and it is possible to avoid flattening the bearing part extending from the slit part. This is especially the case when the bending-forming operation of the first region is carried out before the bending-forming operation of the blank.

According to another aspect of the present invention, a plain bearing with seven flange has a journal bearing part and a flange part having a thrust surface, each part consisting of a back metal part and a bearing lining part which is a material of the bearing. . The flange portion is integral with the journal bearing portion, but has a discontinuous shape.

Due to the discontinuous shape of the flange, lubricant is supplied to the thrust surface at regular intervals along its shape and then discharged, thereby improving the lubrication properties.

The flange portion is preferably formed of a plurality of discontinuous H portions located at predetermined intervals around the journal portion. Further, flange portions may be formed at both ends of the journal portion. The journal portion may have a complete cylindrical shape or a partial cylindrical shape.

The back metal of the bearing may be made of any suitable material such as steel, aluminum, or aluminum alloy. The material of the bearing lining is preferably a soft metal bearing alloy, a plastic bearing material, or a plastic compound.

The present invention can be put into practice by various means,
Some embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an overall perspective view of a cylindrical bearing having discontinuous flanges.

2 to 5 illustrate the main steps of one method for manufacturing a semi-cylindrical bearing with a discontinuously shaped flange.

6 to 9 show the main steps of another method for producing a cylindrical bearing with a discontinuously shaped flange.

FIG. 10 is a partially enlarged detailed view of FIG. 4, showing an embodiment of the invention.

FIG. 11 is a perspective view similar to FIG. 5, and shows an embodiment of the present invention.

FIG. 1 shows a plain bearing consisting of a journal bearing part 11 and a discontinuous flange part 12 provided at one end thereof. The flange portion 12 has several (8 in this case)
It is formed by an ear 13 which extends radially outwards with respect to the journal bearing 11 and forms a thrust surface 14 . The bearing is manufactured from a material consisting of a metal backing (for example steel) and a bearing lining material. In the completed bearing shown in FIG.
Located at 4.

Naturally, any number of ears 13 may be used and a second flange may be formed at the other end of the journal bearing 11.

2 to 5 show the main steps in the manufacturing process of a semi-cylindrical bearing having discontinuous flange portions at both ends. First (FIG. 2), a material 21 consisting of a metal backing (for example, steel) and a lining made of bearing material is cut into a predetermined size. Second (Fig. 3), both ends 22 of the material 21 are attached to the material 2.
1, and at right angles to the remaining portions of
Bend so that the bearing lining is located on the outer surface of the

Third (FIG. 4), a series of slits 23 are formed in the upright end portions 22 . Finally (FIG. 5), the material 21 is bent into a semi-cylindrical shape to form a journal bearing portion 24 and two flange portions 25, and the bearing lining portion is positioned on the inner surface of the journal bearing and the outer surface of the flange portion. As a result of the bending operation described above, the slit 23 opens in a V-shape, and the ears 26 form a flange.

The presence of the slits 23 allows the blank 21 to be bent without the risk of causing the drawbacks associated with stretch forming of the flange. Furthermore, the formed flange portion 25 has a discontinuous shape, which results in improved lubrication properties of the flange portion 25 of the bearing portion.

6 to 9 show the main steps in the manufacturing process of a cylindrical bearing having a discontinuous flange 71 at one end. First (FIG. 6), a material 31 consisting of a metal backing (for example, steel) and a lining made of a bearing material is cut into a predetermined size. Second (FIG. 7), one side end 33 of the material 31
A series of slits 32 are formed in. Thirdly (Figure 8),
The blank 31 is bent into a cylindrical shape so that the bearing lining is on the inner surface and the slit 32 is located at one end.

Finally (FIG. 9), the side edges 33 with the slits 32 are bent outwards to form a flange 35 perpendicular to the rest of the blank 31. The remaining portion of the material 31 constitutes a Jarre bearing portion 34. As a result of the above-described bending operation, the slit 32 opens into a V-shape, and the ears 36 form the flange 35. Here again, the disadvantages associated with stretch forming of the flange can be avoided and an ideal shape can be obtained.

If necessary, connect the bonding lines 37 at both ends of the material.
For example, they may be joined by welding (preferably laser beam welding).

8- A semi-cylindrical bearing with discontinuous flanges at both ends (as shown in FIG. 5) can also be manufactured by applying the method as shown in FIGS. 6-9. In this case, the manufacturing operations shown in FIGS. 6 and 7 are combined into one,
A rectangular material with predetermined dimensions having slits at both end portions may be formed by one punching operation. Thereafter, in a manner similar to that shown in FIGS. 8 and 9, the material is bent into a semi-cylindrical shape and the ears are bent to form a flange.

In the manufacturing method according to Haku's embodiment shown in FIG. 10, the slit 23 has a curved proximal end 27. As shown in FIG.

This is to minimize the possibility that the base end of the slit will tear when the material 21 is finally bent into a cylindrical or semi-cylindrical shape.

When the slit 23 is extended to the bending line, it is impossible to avoid so-called kinks extending from the slit 23 to the journal bearing portion 24, and a relatively flat portion may be formed between the kinks. Therefore, in this embodiment, the slit 23 is stopped before the bending line of the seven flange portions 25. This ensures that the completed journal bearing portion 24 is ultimately formed into a true cylindrical shape or a one-part circle shape without irregularities.

FIG. 11 has the slit 23 shown in FIG. 10,
The completed shape of a semi-cylindrical bearing with two 7-lunges is shown.

The embodiments shown in FIGS. 10 and 11 can also be applied to the methods shown in FIGS. 6-9.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a flanged plain bearing according to the present invention;
Figures 2 to 5 are step-by-step diagrams showing a method for manufacturing a flanged plain bearing according to the present invention, and Figures 6-9 are step-by-step diagrams showing a method for manufacturing a flanged plain bearing according to another embodiment of the present invention. , 10th
The figure is a partially enlarged view of FIG. 4 showing another embodiment, and FIG. 11 is a perspective view similar to FIG. 5 showing another embodiment. DESCRIPTION OF SYMBOLS 21... Material, 22... First region, 23... Slit, 24... Journal bearing part, 25... Flange part, 26... Ear part, 27... Base end part. Patent Applicant: ECIPLC-R) Go to District Office Amendment Form February 17, 1980 Lower Office Wakayaku Kazuo 1 Indication 1958 Patent Application No. 160.606 1 Title Flat Bearing with One Ring and its manufacturing method - relationship with the person making the same Patent applicant: United Kingdom, GEV 227 SA, Warwickshire, Rugby, Corston, Corston House (no street address) Name: AEBLC Representative: David Gibson Handler 1: Figure 7 Contents of Dia Palace Nibancho, 11-9 Nibancho, Chiyoda-ku, Tokyo, United Kingdom

Claims (1)

[Scope of Claims] (1) A plain bearing with seven flange, which has a journal bearing part and a flange part forming a thrust surface, and each part is composed of a back metal and a bearing lining made of a bearing material, wherein the flange part (25 ) is integral with the journal bearing portion (24) and has a discontinuous shape. (2) The flanged plate according to claim 1, wherein the flange portion has a series of separate ears (26) located at predetermined intervals around the journal bearing portion. bearing. (3) In the method for manufacturing a plain bearing with seven flange from a bearing material consisting of a back metal and a bearing lining made of a bearing material, the method for manufacturing a plain bearing with seven flange includes a flange portion (25).
forming a series of slits in a first region (22) of the material (21), bending this first region approximately at right angles from the rest of the material, and shaping the entire material into a cylinder. manufacturing a plain bearing with a flange, characterized in that the forming of the slit is performed before at least one of the bending process or the bending process. Method. (4) The method for manufacturing a plain bearing with seven flange according to claim 3, wherein the first region is bent before the bending operation of the raw material. (5) The method for manufacturing a flanged plain bearing according to claim 3, wherein the material is bent before the bending operation of the first region. (6) The forming of the slit is performed before both the bending of the first region and the bending of the material.
7. A method for manufacturing a flat bearing with a flange as described in any one of paragraphs. (8) Any one of claims 3 to 7, characterized in that a bending line that is a boundary between the journal bearing part and the flange part is separated from the base end part of the sling 1-. 1. A method for manufacturing a flanged plain bearing as described in item 1.