Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1998-10-28
2000-08-22
Bucci, David A.
Machine element or mechanism
Control lever and linkage systems
Elements
74567, 74502, B60K 3706
Patent
active
061054615
ABSTRACT:
A control unit for adjusting heating, air conditioning, and/or ventilation equipment in motor vehicles has turning knobs (5, 6) and the cam wheels (13, 14) which are connected together. There are adjusting levers (10, 11, 12), with each being mounted by means of two bearing pins (15, 16) in a base part (3), and each adjusting arm (10, 11, 12) being structured as a two-armed lever with one lever arm (17, 18, 19) engaging in a three-dimensional cam plate (20, 21, 22) of the cam wheel (13, 14) in a swivel plane E. Between the lever arm (17, 18, 19) and the three-dimensional cam plate (20, 21, 22), a barrel-shaped or spherical follower element (23) is positioned that cooperates with radial motion-causing walls (24, 25) of the three-dimensional cam plate (20, 21, 22). A control unit of this invention is structured to be space saving, easier and less expensive to produce, and to function in an improved manner.
REFERENCES:
patent: 3891957 (1975-06-01), Holtkamp
patent: 4790199 (1988-12-01), Bauer et al.
patent: 4800466 (1989-01-01), Bauer et al.
patent: 5052282 (1991-10-01), Scharamm et al.
Bauer Karl-Heinz
Storath Joachim
Voll Walter
Bucci David A.
Joyce William C
Preh-Werke GmbH & Co. KG
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