DE8120842U1 - Sintered metal piston rod guide for shock absorbers - Google Patents
Sintered metal piston rod guide for shock absorbersInfo
- Publication number
- DE8120842U1 DE8120842U1 DE19818120842 DE8120842U DE8120842U1 DE 8120842 U1 DE8120842 U1 DE 8120842U1 DE 19818120842 DE19818120842 DE 19818120842 DE 8120842 U DE8120842 U DE 8120842U DE 8120842 U1 DE8120842 U1 DE 8120842U1
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- sintered metal
- rod guide
- shock absorbers
- metal piston
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/366—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings
Description
SCHUNK & EBE GMBHSCHUNK & EBE GMBH
Kolbenstangenführung aus Sintermetall für StoßdämpferPiston rod guide made of sintered metal for shock absorbers
Die Neuerung betrifft eine Kolbenstangenführung aus Sintermetall für Stoßdämpfer.The innovation concerns a piston rod guide made of sintered metal for shock absorbers.
Bei Stoßdämpfern in Kraftfahrzeugen werden zur Führung der Kolbenstangen Kolbenstangenführungen aus Sintermetall verwendet. Die Bohrung der Kolbenstangenführung, in der sich die Kolbenstange vertikal bewegt, muß durch die vom Fahrzeugrad aufgenommenen Stöße auch erhebliche Seitenkräfte aufnehmen. Hierbei kann es zu Verkantungen der Kolbenstange kommen. Durch die Kantenpressung entstehen Beschädigungen an der Kolbenstange, wodurch die Funktion des Stoßdämpfers beeinflußt werden kann.In the case of shock absorbers in motor vehicles, piston rod guides are used to guide the piston rods made of sintered metal used. The bore of the piston rod guide, in which the piston rod moves vertically, must be taken up by the vehicle wheel Shocks also absorb considerable lateral forces. This can lead to canting of the piston rod. The edge pressure causes damage to the piston rod, which reduces the function of the shock absorber can be influenced.
Man hat daher bereits Kolbenstangenführungen verwendet, bei denen in die Bohrung ein Zweischicht-Gleitlager aus Stahl und einer Polytetrafluoretyhlen-Laufschicht eingepreßt ist. Die Lösung ist relativ aufwendig.Piston rod guides have therefore already been used, in which a two-layer plain bearing made of steel and a polytetrafluoroethylene overlay in the bore is pressed in. The solution is relatively complex.
Aufgabe der Neuerung ist es daher, eine technische einfachere und damit kostengünstigere Lösung vorzuschlagen .The task of the innovation is therefore to propose a technically simpler and thus more cost-effective solution .
Diese Aufgabe wird durch eine Kolbenstangenführung aus Sintermetall gelöst, die auf der Bohrungsfläche eine Schicht aus Polytetrafluoretylen (PTFE) aufweist. Der Vorteil dieser Neuerung liegt darin, daß der notwendige Fertigungsaufwand wesentlich geringer ist, was verständlicherweise zu einer Kostenreduzierung führt. Durch die Porenstruktur der Sintermetall-Kolben-This task is performed by a piston rod guide dissolved from sintered metal, which has a layer of polytetrafluoroethylene (PTFE) on the bore surface. The advantage of this innovation is that the necessary manufacturing effort is significantly lower, which understandably leads to a cost reduction leads. Due to the pore structure of the sintered metal piston
SCHUNK & EBE GMBHSCHUNK & EBE GMBH
Stangenführung ergibt sich eine sehr gute Haftung der PTFE-Schicht auf der Bohrungsfläche.Rod guidance results in very good adhesion the PTFE layer on the bore surface.
Die Neuerung ist in der Zeichnung beispielhaft dargestellt. Hierin ist die Kolbenstange 1, die Kolbenstangenführung 2 aus Sintermetall mit der PTFE-Schicht 3 auf der Bohrungsfläche dargestellt.The innovation is shown as an example in the drawing. Here is the piston rod 1, the Piston rod guide 2 made of sintered metal with the PTFE layer 3 shown on the bore surface.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19818120842 DE8120842U1 (en) | 1981-07-16 | 1981-07-16 | Sintered metal piston rod guide for shock absorbers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19818120842 DE8120842U1 (en) | 1981-07-16 | 1981-07-16 | Sintered metal piston rod guide for shock absorbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8120842U1 true DE8120842U1 (en) | 1982-04-15 |
Family
ID=6729466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19818120842 Expired DE8120842U1 (en) | 1981-07-16 | 1981-07-16 | Sintered metal piston rod guide for shock absorbers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8120842U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0658611A1 (en) * | 1993-12-18 | 1995-06-21 | Ringsdorff Sinter GmbH | Injection molded guiding and sealing elements on sintered parts for a shock absorber |
-
1981
- 1981-07-16 DE DE19818120842 patent/DE8120842U1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0658611A1 (en) * | 1993-12-18 | 1995-06-21 | Ringsdorff Sinter GmbH | Injection molded guiding and sealing elements on sintered parts for a shock absorber |
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