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  Torque adjusting mechanismUSPTO Application #: 20060175154Title: Torque adjusting mechanism Abstract: A torque adjusting mechanism including a shaft, a main body, and an adjusting device is provided. The main body has a circular wall and a through hole disposed therein for coupling to the shaft. The adjusting device disposed on the main body includes an adjusting hole, an adjusting button and an elastic body disposed inside the adjusting hole. The adjusting hole is perpendicular to the through hole and penetrates the circular wall. The adjusting button coupled to the adjusting hole can be adjusted along the adjusting hole. One end of the elastic body contacts with the adjusting button and the other end presses on the shaft. Therefore, the elastic body can provide a predetermined torque between the shaft and the main body and further increase the torque between the main body and the shaft. (end of abstract) Agent: Rosenberg, Klein & Lee - Ellicott City, MD, US Inventor: Huan-Tsung Lin USPTO Applicaton #: 20060175154 - Class: 188067000 (USPTO) Related Patent Categories: Brakes, Rod The Patent Description & Claims data below is from USPTO Patent Application 20060175154. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATIONS [0001] The present application is based on, and claims priority from, Taiwan Application Serial Number 94201025, filed Jan. 19, 2005, the disclosure of which is hereby incorporated by reference herein in its entirety. BACKGROUND [0002] 1. Field of the Invention [0003] The invention relates to a torque adjusting mechanism and, in particular, to an elastic torque adjusting mechanism. [0004] 2. Description of the Related Art [0005] To adjust the torque between two devices rotating with respect to each other and coupled by a shaft, a torque adjusting mechanism is often provided between the shaft and the pivoting devices. The conventional torque adjusting mechanism usually is a fixing device penetrating through the pivoting devices. The fixing device, for example, has a set of nut and bolt or a rivet. The method of adjusting the torque is to adjust the tightness between the nut and bolt or the depth of the rivet. This kind of torque adjusting method is very hard to provide a stable torque, for the contact area between the two pivoting devices and the head of bolt and the nut or the deformed rivet head. [0006] When using the nut and bolt as the fixing device, they may become more loose or tight as the pivoting devices rotate because of the friction between them. Therefore, it is hard to maintain a stable torque. [0007] When using the rivet as the fixing device, one hit the rivet to determine its connection. Once a predetermined torque is reached, it is hard to be loosened. The connection part is worn as the two pivoting devices rotate. Little by little, a gap is formed between them to weaken the torque. One then has to hit the rivet again to regain the torque. If one wants to separate the two pivoting devices, the rivet has to be destroyed. The destroyed rivet can no longer be used in the torque adjusting mechanism. That is, a new rivet has to be used in order to re-couple the two pivoting devices. [0008] Moreover, if the two pivoting devices have a different hole size than the fixing device, they cannot rotate about the same center. It is then very difficult to adjust the orientations of the devices with high precision. SUMMARY OF THE INVENTION [0009] Accordingly, an objective of the invention is to provide a torque adjusting mechanism to control the torque using the coupling interface between the shaft and the main body of the torque adjusting mechanism. [0010] Another objective of the invention is to provide a torque adjusting mechanism assembled from components that can easily be taken apart. [0011] A further objective of the invention is to provide an adjusting base that has a torque adjusting mechanism with good coaxiality to accurately adjust the orientation of a supported apparatus. [0012] To achieve the above objectives, the disclosed torque adjusting mechanism of the present invention includes a shaft, a main body, and an adjusting device. The main body has a circular wall and a circular through hole, whose diameter is slightly larger than that of the shaft, disposed therein for coupling to the shaft. The adjusting device disposed on the main body includes an adjusting hole, an adjusting button, and an elastic body. The adjusting hole is perpendicular to the through hole and penetrates the circular wall. The adjusting button coupled to the adjusting hole can be adjusted along the adjusting hole when an external force acts upon. The adjusting button is fixed inside the adjusting hole when no external force is imposed thereon. The elastic body is disposed inside the adjusting hole. One end of the elastic body contacts with the adjusting button, and the other end presses on the shaft. [0013] Before adjusting the adjusting button, the elastic body provides a predetermined torque between the shaft and the main body. The adjusting button presses on the elastic body to in turn press on the shaft for increasing the torque between the shaft and the main body when the adjusting button is moved toward the shaft. BRIEF DESCRIPTION OF THE DRAWINGS [0014] These and other features, aspects and advantages of the invention become apparent by reference to the following description and accompanying drawings which are given by way of illustration only, and thus are not limitative of the invention, and wherein: [0015] FIG. 1A is a top view of the disclosed torque adjusting mechanism; [0016] FIG. 1B is a cross-sectional view of A-A in FIG. 1A; [0017] FIG. 2 is a three-dimensional view of the disclosed torque adjusting mechanism; [0018] FIG. 3 is an exploded three-dimensional view of the disclosed torque adjusting mechanism; [0019] FIG. 4 is a top view of the disclosed torque adjusting mechanism with two adjusting devices; [0020] FIG. 5 is a top view of the disclosed torque adjusting mechanism in another embodiment of the invention; Continue reading... Full patent description for Torque adjusting mechanism Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Torque adjusting mechanism patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Torque adjusting mechanism or other areas of interest. ### Previous Patent Application: Detecting elevator brake and other dragging by monitoring motor current Next Patent Application: Pneumatically or electromotively operated disc brake Industry Class: Brakes ### FreshPatents.com Support Thank you for viewing the Torque adjusting mechanism patent info. IP-related news and info Results in 3.68275 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m |
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