Source: http://www.google.com/patents/US7559403?dq=3984803
Timestamp: 2017-08-16 16:24:15
Document Index: 1486428

Matched Legal Cases: ['art 202', 'art 204', 'art 202', 'art 204', 'art 202', 'art 204', 'art 202', 'art 204', 'art 202', 'art 202', 'art 202', 'art 204', 'art 202', 'art 204', 'art 202', 'art 204']

Patent US7559403 - Modular, central frame, offset, dual control arm independent suspension and ... - Google Patents
A dual control arm independent suspension mounts to a chassis of a high mobility truck for steering, non-steering, driving, and/or for non-driving. The dual control arm independent suspension has modular, tubular-frame and/or differential housing for attachment to front axle positions and/or to rear...http://www.google.com/patents/US7559403?utm_source=gb-gplus-sharePatent US7559403 - Modular, central frame, offset, dual control arm independent suspension and suspension retrofit
Publication number US7559403 B2
Application number US 11/399,063
Also published as US20070235972
Publication number 11399063, 399063, US 7559403 B2, US 7559403B2, US-B2-7559403, US7559403 B2, US7559403B2
Inventors Geoffrey W. Schmitz
Original Assignee Schmitz Geoffrey W
Patent Citations (121), Referenced by (12), Classifications (15), Legal Events (2)
Modular, central frame, offset, dual control arm independent suspension and suspension retrofit
US 7559403 B2
a second stopper connected to the frame wherein the second stopper restricts rotation of the first arm.
However, the swing arm vehicle suspension has limited kinematic possibilities. For example, the swing arm vehicle suspension provides geometry forces of a wheel and/or a tire to travel through a circular arc with simultaneously changing a tire camber angle and/or a tire contact patch location via a suspension motion. Changes in camber angle and/or tire contact patch location during suspension trave is an undesirable characteristic which results in poor handling, excessive tire-wear or a “jacking” and/or a lifting of the vehicle body upward while negotiating curves. Further, a suspension element of the swing arm vehicle suspension must be fixed to a central structure which prevents dual control arm independent suspension elements from being incorporated into the swing arm vehicle suspension.
Referring now to the drawings wherein like numerals refer to like parts, FIGS. 1-3 illustrate a dual control arm independent suspension 10 (hereinafter “the dual control arm suspension 10”) which may be attachable to a knuckle 12, a hub 14 and/or a tire 16 of a vehicle (not shown in the figures) in an embodiment of the present invention. The vehicle may be, for example, a high-mobility truck, a military vehicle, a passenger vehicle and/or the like. The dual control arm suspension 10 may have a differential housing 18 (hereinafter “the housing 18”) for attaching a central tube 20 (hereinafter “the tube 20”), as shown in FIGS. 1 and 2. The knuckle 12 may be, for example, a steering knuckle or a non-steering knuckle. The present invention should not be deemed as limited to a specific embodiment of the vehicle. It should be understood that any number of knuckles, hubs, tires and/or housings may be attached to and/or may be incorporated into the vehicle as known to one of ordinary skill in the art.
A first pivot plate 22 a and/or a second pivot plate 22 b (collectively known hereinafter as “the pivot plates 22 a, 22 b”) may be attached to the housing 18 with one or more fasteners 24 for attaching and/or for connecting the pivot plates 22 a, 22 b to the tube 20. In an embodiment, eight of the fasteners 24 may attach and/or may connect the pivot plates 22 a, 22 b to the housing 18. In an embodiment, eighteen of the fasteners 24 may attach and/or may connect the pivot plates 22 a, 22 b to the housing 18. The housing 18 may be located between the pivot plates 22 a, 22 b. The pivot plates 22 a, 22 b may be located between the tube 20 and the housing 18, as shown in FIGS. 2 and 3. The fasteners 24 may be, for example, bolts, dowels, screws, posts, pins, shafts, rods, welds and/or the like. The fasteners 24 may be any fastener which may attach the pivot plates 22 a, 22 b to the housing 18 as known to one of ordinary skill in the art.
The pivot plates 22 a, 22 b may have and/or may provide top control arm pivots 26 a, 26 b and/or bottom control arm pivots 28 a, 28 b as shown in FIG. 1. The top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b may be formed in the pivot plates 22 a, 22 b for attaching a top control arm 30 and/or a bottom control arm 32 (collectively known hereinafter as “the control arms 30, 32”), respectively, as shown in FIG. 1. The top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b may form a passage 27 which may extend through the pivot plates 22 a, 22 b.
An end 37 of the control arms 30, 32 may have notches 35 a, 35 b for attaching the control arms 30, 32 to the pivot plates 22 a, 22 b via the top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b. The notches 35 a, 35 b may be sized to receive the top control arm pivots 26 a, 26 b of and/or the bottom control arm pivots 28 a, 28 b of the pivot plates 22 a, 22 b for connecting, for attaching and/or for securing the control arms 30, 32 to the pivot plates 22 a, 22 b. The end 37 of the control arms 30, 32 may have passages 39 for attaching the control arms 30, 32 to the pivot plates 22 a, 22 b via the top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b.
The top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b may be inserted into the notches 35 a, 35 b at the end 37 of the control arms 30, 32. As a result, the top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b may contact, may abut and/or may be adjacent to the notches 35 a, 35 b at the end 37 of the control arms 30, 32. The control arms 30, 32 may be attached to, may be fastened to and/or may be connected to the pivot plates 26 a, 26 b via fasteners 36, the notches 35 a, 35 b, the passages 39, the top control arm pivots 26 a, 26 b and/or the bottom control arm pivot plates 28 a, 28 b. The fasteners 36 may be inserted into and/or may be located inside the passages 39 of the control arm 30, 32 and the top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b. As a result, the control arms 30, 32 may be attached to, may be fastened to and/or may be connected to the pivot plates 28 a, 28 b via the fasteners 36, the notches 35 a, 35 b, the passages 39, the top control arm pivots 26 a, 26 b and/or the bottom control arm pivots 28 a, 28 b. The fasteners 36 may be, for example, pins, tabs, rods, shafts, bolts, screws and/or the like. It should be understood that the fasteners 36 may be any fasteners which may attached the control arms 30, 32 to the pivot plates 26 a, 26 b as known to one of ordinary skill in the art.
FIG. 2 illustrates a frame 100 of the vehicle in an embodiment of the present invention. In an embodiment, the frame 100 may, for example, a ladder frame, a straight frame and/or an articulated frame which may have the differential housings 118 a, 118 b, 118 c (hereinafter “the housings 118 a, 118 b, 118 c”) connected to and/or attached to the tube 20 along the frame 100 of the vehicle for driving, for moving and/or for steering the vehicle. An articulation joint (not shown in the figures) may be located between the housings 118 a, 118 b, 118 c with the articulated frame of the vehicle. In an embodiment, the housings 118 a, 118 b, 118 c may be axially mounted and/or axially fixed to the tube 20. The tube 20 may be located between, may connect and/or may be fixed between each of the housings 118 a, 118 b, 118 c.
Each of the housings 118 a, 118 b, 118 c may provide first dual control arms 120 a, 120 b, 120 c which may be attachable to first tires 122 a, 122 b, 122 c for driving and/or for steering the vehicle in the first direction 54 and/or in the second direction 56. Each of the housings 118 a, 118 b, 118 c may provide second dual control arms 124 a, 124 b, 124 c which may be attachable to second tires 126 a, 126 b, 126 c for driving and/or for steering the vehicle. In an embodiment, the tube 20, the housings 118 a, 118 b, 118 c, the first control arms 122 a, 122 b, 122 c and/or the second control arms 126 a, 126 b, 126 c may form a tubular frame independent suspension design.
FIGS. 4-6 illustrate a first adapter plate 200, a second adapter plate 300 and/or a third adapter plate 400, respectively, for attaching, for connecting and/or for securing the control arms 30, 32 to the housing 18 and/or the tube 20 in an embodiment of the present invention. The first adapter plate 200, the second adapter plate 300 and/or the third adapter plate 400 (collectively known hereinafter as “the adapter plates 200, 300, 400”), the housing 18 and/or the tube 20 may move, may steer and/or may drive the vehicle in the first direction 54 and/or in the second direction 56 via the first tires 122 a, 122 b, 122 c and/or the second tires 126 a, 126 b, 126 c. Each of the adapter plates 200, 300, 400 may have and/or may provide a first part 202 and a second part 204 for attaching to, for connecting to and/or for securing to the housing 18 via the fasteners 24. As a result, the first part 202 and/or the second part 204 may be mounted to, may be attached to and/or may be secured to the housing 18 and/or the tube 20 via the fasteners 24 for driving and/or for steering the vehicle in the first direction 54 and/or in the second direction 56.
As illustrated in FIGS. 4 and 6, the first part 202 of the adapter plate 200 and/or the adapter plate 400 (collectively known hereinafter as “the adapter plates 200, 400”) may have and/or may provide the top control arm pivots 26 a, 26 b for attaching, for connecting and/or for securing the top control arm 30 to the adapter plates 200, 400. The second part 204 of the adapter plates 200, 400 may have and/or may provide the bottom control arm pivots 28 a, 28 b for attaching, for connecting and/or for securing the bottom control arm 32 to the adapter plates 200, 400. The top control arm 30 may be connected to, may be attached to and/or may be secured to the first part 202 of the adapter plates 200, 400 via the fasteners 36 and/or the top control arm pivots 26 a, 26 b. The bottom control arm 32 may be connected to, may be attached to and/or may be secured to the second part 204 of the adapter plates 200, 400 via the fasteners 36 and/or the bottom control arm pivots 26 a, 26 b. The first part 202 of the adapter plates 200, 300, 400 may have and/or may provide the first rebound stops 46 a, 46 b for contacting and/or for abutting the second jounce limiter 44 of the top control arm 30 as shown in FIG. 6. The tube 20 may be located and/or may be positioned between the first rebound stops 46 a, 46 b of the adapter plates 200, 300, 400. The second jounce limiter 42 of the frame 40 may contact and/or may abut the first rebound stops 46 a, 46 b with the top control arms 30, 32, the hub 14, the first tires 122 a, 122 b, 122 c and/or the second tires 126 a, 126 b, 126 c which may be moving downwardly with respect to the frame 40.
The first part 202 of the adapter plate 200 may have second rebound stops 206 a, 206 b for contacting and/or for abutting the first jounce limiter 42 of the frame 40. The top control arm pivots 26 a, 26 b may be located between the first rebound stops 46 a, 46 b and the second rebound stops 206 a, 206 b, respectively. The first jounce limiter 42 may contact and/or may abut the second rebound stops 206 a, 206 b with the control arms 30, 32, the hub 14, the first tires 122 a, 122 b, 122 c and/or the second tires 126 a, 126 b, 126 c.
As shown in FIG. 5, the first part 202 and/or the second part 204 of the adapter plate 300 may have grooves 302 for connecting the control arms 30, 32 to the adapter plate 300, the housing 18 and/or the tube 20 in an embodiment of the present invention. A suspension management bracket 304 may be inserted into, may be located in and/or may abut one of the grooves 302 of the first part 202 and/or the second part 204 of the adapter plate 300. A fastener 306 may be inserted into and/or may engage the suspension management bracket 304 for connecting, for attaching and/or for securing the suspension management bracket 304 to one of the grooves 302 of the first part 202 and/or of the second part 204 of the adapter plate 300. As a result, the suspension management bracket 304 may be attached to and/or may be secured to the adapter plate 300 via the fastener 306 and/or the grooves 302. The fastener 306 may be, for example, a bolt, a pin, a screw, a rod, a shaft, a dowel and/or the like. It should be understood that the fastener 306 may be any fastener which may secure the suspension management bracket 304 to the adapter plate 300 as known to one of ordinary skill in the art.
The first jounce limiter 42 and/or the second jounce limiter 44 (collectively known hereinafter as “the jounce limiters 42, 44”) may be located between the second rebound stoppers 206 a, 206 b and/or the first rebound stoppers 46 a, 46 b, respectively, to support the frame 40 and/or the upper body of the vehicle. In an embodiment, the jounce limiters 42, 44 may be connected to, may be attached to and/or may be secured to a space-frame (not shown in the figures) for supporting the frame 40 and/or the upper body of the vehicle.
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U.S. Classification 180/344, 180/374
Cooperative Classification B60G7/02, B60G7/04, B60G2204/19, B60G2200/144, B60G2204/143, B60G3/20, B62D21/04, B60G2202/12
European Classification B60G7/02, B62D21/04, B60G3/20, B60G7/04