Torque-limiting clutch
US4572342A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1983 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Nov 9, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D43/215
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a torque-limiting clutch. An engagement lock (2, 8, 9, 11, 12) and a friction clutch (6, 20-26) disengageable counter to the force of an axially acting spring are arranged in series in the force transmission path between the drive side (1) and the power take-off side (26) of the clutch. The engagement lock (2, 8, 9, 11, 12) is stressed by a second spring which, when the engagement lock has been disengaged, acts on a first portion of the adjustment travel only. Assigned to the locking device (9) of the engagement lock (2, 8, 9, 11, 12) is an ascending curve, the steepness of which is greater over the first portion of the adjustment travel than over the portion adjoining the latter. In this clutch, the limiting torque is determined solely by the second spring. Whereas the steepness of the first portion is chosen so that the engagement lock reacts after the limiting torque, the steepness of the second portion can be chosen, taking into account the two springs which are then activated simultaneously, so that the clutch can be disengaged easily and quickly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.