JPS59133818A - Universal ball joint particularly for test set - 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 has two bearings rotatably supporting a ball head of a hole head having a shaft portion on which tensile and compressive forces act substantially minutely. One of the bearing metals has an opening for the third bearing metal, the dividing plane between both the bearing metals is located approximately perpendicular to the shaft portion or the load direction, and there is a gap or a gap between the two bearing metals. This invention relates to universal ball joints, especially for test equipment such as

The well-known universal ball joint (West German Patent Application No. 1916579) used in particular in shift levers of automobiles
In the case of the No. 441il bearing or bearing metal, the bearing metal is made elastic. Such joints are not applicable to large forces and have no compliance. For example, in the case of ball joints used in test equipment, there must be no play when the direction of the force changes (tension-compression). Nevertheless, the joints must be easily movable and must transmit large testing forces.

The object of the invention is to provide a flexible ball, especially used for test equipment, which can transmit large dynamic forces, can be easily tracked and has low friction in the joint, i.e. can be moved to each station. It's about getting the fitting. This object can be achieved by the measures described in the characterizing part of claim 1.

By using a tightening element and a loosening element to tighten the two bearings against each other or against the hole head, the play of the joint can be easily adjusted and, if necessary, followed. Moreover, in particular by pre-tightening the element, this tightening can keep the dynamic loads on the element very low. If there is no load relief or release element, the tightening element must be designed several times larger to transmit the same force.

Furthermore, in order to prevent this element from loosening, an auxiliary locking device is required for the tightening element.

It is advantageous for the tightening element and the loosening element to be designed as bolts, which facilitates adjustment and follow-up adjustment of the eave sill. Instead of a loose bolt,
It is also possible to use suitably designed spring elements or intermediate elements whose spring constant is greater than the Holt spring constant.

Hole head and or four to improve abrasion and abrasion properties! It is possible to provide the liI support with a coating layer having advantageous coefficients of friction and wear. Advantageous embodiments of the invention are described in the appended claims.

The present invention will be described in detail below based on embodiments shown in the drawings.

The ball joint according to FIG.
It has a hole-rad 1 with a detail 2 to which a force transmitting element (not shown) can be connected in order to introduce the force (±F).

This pole head 1 is housed in two bearings 3 and 4. One bearing metal 3 has an opening through which the shaft portion 2 passes. The other bearing metal 4 is connected to, for example, a structural component to be tested. The dividing plane between the sleeve holders 3 and 4 is located substantially perpendicular to the load direction (force ±F) or the axis of the cloth portion 2.

The two bearings 3, 4 are fastened to each other or to the pole head II by means of toothed bolts 5 arranged in the bearing assembly 3. The size and number of the bolts 50 and the tightening force of the decorative bolts 5 are determined in such a way that the static and dynamic loads occurring on the Hall joint can be transmitted satisfactorily.

The tightening force of the bolt 5 to the ball head 1 is partially loosened by the loosening bolt 6ζ provided in the bearing metal 4 and pressed against the bearing metal 3, and preferably the ball head 1 and the bolt 5 are tightened. It is loosened until a desired gap or desired slack is formed between the bearing metals 3 and 4. this thing 9
? With jjd, the bolt 5 is pulled more strongly. This human-like pulling force applies to all dynamic loads, such as repeated loads or alternating loads, and the dynamic operating load of the bolt 5 is small, so tightening is difficult. The bolt 5 is only subjected to a small additional load i.

This also applies if the tightening bolt 5 is tensioned by a vertical spring element, by an intermediate element or by another unreasonable method.

When wear occurs, the gap between the pole head 1 and the shaft support 3.4 can be adjusted by loosening the bolt 6. For this purpose, the loosening bolt 6 is loosened until the desired position in the pole joint Q is again formed.

In order to minimize scratches on the bearing, the pole head and bearing metals 3 and 4 are made of, for example, PTFE (
A sliding layer 7 made of a suitable material such as polytetrafluoroethylene), polyimide or bearing bronze is crushed.

Loosen bolt 60 size and number and this loosen bolt 6
The supporting length of the loosening bolt 6 is determined so that the loosening bolt 6 forms a vertical spring as much as possible. In this case, the supporting length of the loosening bolt 6 means the free length of the bolt between the two bearings 3 and 4.

The tightening bolt 5 and the loosening bolt 6 may be disposed on one of the bearings, that is, on either the bearing 3 or the bearing 4, unlike the drawing in FIG.

FIG.
It shows the structure of the device itself, which seems to have one built-in structure.

In FIG. 2a, the bearing metal 3 has a screw 8 on its outer periphery,
The bearing metal 3 is inserted into the instep of the threaded link 9 with this screw 8. The bearing metal 3 is tightened with the bolt 5 from the pole head 1 to Il! The bearing metal 3 is loosened by the threaded ring 9 and the bolt 6 is tightened.
The bolt 5 is adjusted or tightened in the same manner as the bolt 5 is tightened.

In the English embodiment shown in FIG. 2b, the bearing metal 3 is pushed into the bearing metal 4 by a screw 8, and is fastened to the pole head 1 or the bearing metal 4. The ball joint is A-aligned by the loosening bolt 6 in the same manner as described in FIG.

As described above, the present invention uses a combination of a tightening bolt and a loosening bolt to adjust the play in the bearing metal of a universal joint. Since the size of the shaft is small, this narrowing allows for miniaturization of the bearing part by reducing the number of ports, and also simplifies play adjustment.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a hole-and-socket type joint according to the present invention, and FIGS. 2a and 2b are cross-sectional views of exemplary embodiments of a pole-and-socket type joint according to the present invention. 1 Pole head, 2...shaft part, 3, 4... bearing part,
6. Loosen bolt, 7. Slip layer, 8. Screw,
9.Screw link. Fig, 1 Continued from page 1 0 Inventor Günther Subel Federal Republic of Germany 6101 Metzel Berliner Strasse 16 Procedural amendment (method) % formula % 1, Indication of case Patent Application No. 116260 of 1982 2, Name of the invention, especially the universal ball joint 3 for a test-flying device, Relationship with the case of the person making the amendment Patent applicant Karl, Sienck, Akchengesellschaft Showa Dan September 7, 2013 - "Brief explanation of the drawings" column and drawings. 8. Contents of amendment]) "Figures 2a and 2b" in line 1 of page 9 of the specification is corrected to "Figure 2." 2) R Fig, 2a in the drawing as indicated in red on a separate sheet.
J and rFig, 2b” to [Fig,
2 Correct it as J. Amendment of the above procedure dated October 1989, Director General of the Japan Patent Office, Kazuo Wakasugi, 1. Indication of the case, Patent Application No. 116260, filed in 1982. 2. Name of the invention, especially the universal ball joint for testing equipment 3. Amended. Related to the patent applicant Karl, Sienck, Akchengesellschaft's ``Detailed Description of the Invention'' section of the specification subject to the 7th amendment. 8. Contents of amendment 1) "Figure 2a" on page 8, line 11 of the specification has been changed to "Figure 2"
I am corrected. 2) Delete "In the embodiment of FIG. 2b" on page 8, line 18 of the specification. that's all

Claims (1)

[Claims] 1. A ball head having a shaft portion on which tensile force and compressive force act approximately on its axis, and two bearing metals that rotatably support this ball head, and these bearings Both of the bearing metals have openings for the S part, and the dividing plane between both bearing metals is located approximately perpendicular to the detail or the load direction,
Tighten both bearings (3, 4) to each other or to the ball head (1) in a universal ball joint for a test device such that there is no gap between the two bearings. Tightening is element (5), and this tightening is element (
5) A universal ball joint, in particular for use in test equipment, characterized in that it is provided with a load-reducing element and a loosening element (6°9) which act in the opposite direction to the tightening force. 2. Universal ball joint according to claim 1, characterized in that the tightening element is formed as a tightening bolt (5). 3 The load reduction and loosening element is a loosening bolt (6
), and the loosening bolt (6) is disposed on one bearing (3, 4) and is supported in contact with the other bearing (4, 3). The universal ball joint according to item 1 or 2. 4 Tightening and loosening bolts (5, 6) are the same bearing metal (
Claim 2 is characterized in that:
The universal ball joint described in item 3 or item 3. 5. The flexible bolt according to any one of claims 2 to 4, characterized in that the length of the tightening bolt (5) is greater than the supporting length of the loosening bolt (6). ball joint. 6. The scope of the patent Uη claimed in item 1, characterized in that the loosening element is formed as a spring or intermediate element with a spring constant larger than that of the bolt (5). Universal ball joint. 7. Ball head (1) and bearing metal (3, 4)
7. A flexible bearing according to claim 1, characterized in that the bearing surface of the bearing surface is provided with a coating layer (7) having favorable frictional and/or wear characteristics. ball joint.