Abstract: A two or more person RUV (recreational utility vehicle) is provided with a multi-place multi-planar saddle seat assembly, multi-place multi-planar foot board assemblies, and grip handles.

Abstract: A frame for a heavy-duty vehicle includes a pair of spaced-apart, parallel, elongated and longitudinally extending main members. Each one of a pair of hangers is attached to and depends below a respective one of the main members. An axle/suspension system is mounted on the hangers. A vertically disposed brace structure extends between and is attached to the hangers and the main members. The brace structure includes a hanger cross member disposed perpendicularly between the hangers and a pair of inclined members each of which extend between and are attached to the hanger cross member and to a respective one of the main members or to a respective one of the main members and a respective one of the hangers. The brace structure efficiently dissipates loads from the axle/suspension system into the frame adjacent the hangers and eliminates the need for additional cross members within the frame.

Abstract: A modular structure applied to rear suspensions for commercial vehicles, especially designed to be used in a family of suspensions, said structure comprising a crossbeam (1) attached perpendicularly to the frame, fixing bearings (2) of the upper reaction rods of the suspension to the frame, and central brackets (3).

Abstract: A rear-wheels transmission and suspension system, adapted for modifying a two wheeled motorcycle into a motorcycle containing two rear wheels, includes a suspension device, a rear axle and a transmission device. The suspension device includes a supporting frame longitudinally extending along the central axis of a construction frame and pivotally connected with a seat portion of the construction frame of the motorcycle for supporting the rear axle at the rear end the supporting frame while defining a transmission cavity after a rear end of the supporting frame and at a central position behind an output of said engine along the central axis of the construction frame. Therefore the transmission device is able to be supported by the rear axle in the transmission cavity to transmit a rotation output from the engine to drive the rear axle to rotate for driving the rear wheels to rotate.

Abstract: A wheel assembly for an infant carrier apparatus can include a shock absorber, and at least a wheel pivotally coupled with the shock absorber. Examples of the infant carrier apparatus can include an infant stroller apparatus. In some embodiments, the shock absorber can be directly connected with a support frame of the infant carrier apparatus. In other embodiments, the wheel assembly can include a mount base through which the shock absorber is connected with the support frame.

Abstract: A motor vehicle having a chassis frame and a vehicle body has switchable connection elements between the chassis frame and the vehicle body. The connection elements are arranged both in front of and behind the connection line of the wheel contact points of the front wheels and/or the connection line of the wheel contact points of the rear wheels. As a result, during cornering, the vehicle body exercises a bending moment upon the chassis frame, which results in a self-steering behavior of the front axle and/or of the rear axle. This self-steering behavior can be influenced in that either the connection elements in front of or the connection elements behind the corresponding axle are triggered such that they exhibit a transverse rigidity that is as high as possible. While the respective other connection elements are triggered such that they exhibit a transverse rigidity that is as low as possible.

Abstract: A vehicle body frame structure includes, in a front frame assembly, a front suspension supporting section having paired right and left cushion top end supporting parts, paired right and left upper arm supporting parts, paired right and left upper arm supporting parts, paired right and left lower arm supporting parts, and paired right and left lower arm supporting parts. In the vehicle body frame structure, the front frame assembly has a configuration which is vertically bisected chiefly into an upper front frame and a lower front frame. The upper front frame includes the right and left cushion top end supporting parts. The lower front frame includes the right and left upper arm supporting parts, the right and left upper arm supporting parts, the right and left lower arm supporting parts, and the right and left lower arm supporting parts.

Abstract: A rear frame for a motor vehicle has a profile part manufactured from cast metal. The profile part has two legs, which are connected to one another via a cover element, and an attachment element. In this way, the rear frame has a particularly high stability and may be manufactured particularly cost-effectively.

Abstract: A saddle-ride type four-wheeled vehicle has a structure that ensures a sufficient clearance between a shock absorber and a front rod of an upper arm supporting front wheels, and also achieves satisfactory frame strength. The body frame of the saddle-ride type four-wheeled vehicle includes a lower frame extending below an engine to the rear of the vehicle. The body frame includes a front frame which is made of aluminum or aluminum alloy and located above the lower frame. In the front frame, pairs of arm-supporting portions which are spaced away from each other in a front-rear direction and support the front rods and a rear rods of the upper arms, and shock-absorber-supporting portions which are situated above the arm-supporting portions and support upper ends of the shock absorbers, are provided. The front frame has, at a forefront of the front frame, an extending portion extending obliquely upward and rearward from a lower end of the extending portion connected to the lower frame.

Abstract: A dual-lever compression system comprising a shock absorber, a first lever, and a second lever. The shock absorber first end is pivotally coupled to a frame. The shock absorber second end is pivotally coupled to a first lever first end and the first lever second end is coupled to the frame. The second lever first end is pivotally coupled to the shock absorber second end and the second lever second end is coupled to a swing- arm. The compression performance control provided by embodiments of the dual-lever compression system is directly related to the incorporation of dual levers coupled to the shock absorber; that is, the first lever and the second lever. Angles, position, and pivotal rotations of the dual levers provide for controlled shock absorption.

Abstract: A mass transit vehicle includes one or a combination of the following: floor portions that are angled for creating an incline of a floor of the buss; a door or entranceway that is angle relative to a fore-aft axis of the vehicle; and/or an entranceway that opens a relatively low height relative to the ground.

Abstract: A front cross member 202 of a rear subframe 53 has a recessed portion 221 which is recessed continuously over a longitudinal direction thereof. The recessed portion 221 is formed at a lower portion of the cross member 202 and is recessed upwardly, and an elastic bush 240 is fitted in a resulting recess. The elastic bush 240 has an elastic element 243 which connects together an inner tube 241 and an outer tube 242 which surrounds the inner tube 231 and is mounted on the rear subframe 53 at the recessed portion 221 as a bracket. The bracket 221 has bracket plate portions 263a, 263b which each have a plane which is brought into contact with an end face of the inner tube and folded-back portions 235, 235. The bracket 221 is disposed in such a manner as to hold therein both ends of the inner tube 241 and is configured such that the elastic bush 240 is mounted thereon by passing a bolt 224 through the inner tube 241.

Abstract: A wheelchair base including a base frame and a pair of pivot arm assemblies each including a first pivot arm and a second pivot arm, pivotally coupled to each other for pivotal movement about a transverse pivot axis. The pivot arms defining first and second auxiliary wheel attachments opposed to the transverse pivot axis for attaching first and second end auxiliary wheels. Each pivot arm assembly including a link pivotally coupled to the second pivot arm intermediate the transverse pivot axis and the second auxiliary wheel attachment for pivotal movement about a link axis substantially parallel to the transverse pivot axis forming a drive wheel attachment intermediate the auxiliary wheel attachments. The pivot arm assemblies are mounted to the base frame substantially laterally opposed to each other through the link and first pivot arm such that the pivot arm assemblies are independently pivotable relative to the base frame.

Abstract: Vehicle front body structure includes, in each of its left and right sections, a damper housing having mounted thereon an upper portion of a suspension damper; a front side frame having the housing attached thereto; a damper housing connection bracket inserted in an opening of the frame; a welding section formed on the housing and fixed to the bracket; a lid fitted in the opening to form the frame as a closed-sectional-shape structure. The body structure also includes a collar nut provided within the side frame and supporting a sub frame, and each of the housings has a lower section connected to the collar nut.

Abstract: A mass transit vehicle includes one or a combination of the following: floor portions that are angled for creating an incline of a floor of the buss; a door or entranceway that is angle relative to a fore-aft axis of the vehicle; and/or an entranceway that opens a relatively low height relative to the ground.

Abstract: A vehicular frame assembly is provided and includes a pair of control arm support brackets. Each of the control arm support brackets define a pair of recesses. The first control arm support bracket and the second control arm support bracket are substantially identical and are configured to be positioned along a vehicular frame such that one of the pairs of recesses defined by a control arm support bracket receives forward legs of right and left suspension support members and the other of the pairs of recesses defined by the other of the control arm support bracket receives rearward legs of right and left suspension support members. A vehicle is also provided.

Abstract: The invention relates to a suspension strut top mounting (1) in a body structure of a motor vehicle. The suspension strut top mounting (1) consists of two half-shells (2, 3) which are connected together in a rigid manner on the outer edge thereof (4, 5) and form a cavity (4) therebetween and are placed on top of each other in the support region (7) of the suspension strut top mounting (8). The suspension strut top mounting (1) is integrated into the body structure as a connecting node for adjacent hollow profiles (10, 12) of the body structure such that it reinforces and delivers a positive contribution to the crash behavior of the vehicle structure.

Abstract: Rear vehicle body structure (10) includes a sub-frame (16), which has left and right sub side members (51, 52) and front and rear sub cross members (53, 54) that together constitute a substantially rectangular framework (46). The left sub side member includes a left rear extension portion (58) extending from the framework toward the rear of the vehicle body and connected to a left rear joint section (42), where the rear cross member and the left rear side frame are joined together. The right sub side member includes a right rear extension portion (63) extending from the framework toward the rear of the vehicle body and connected to a right rear joint section (44).

Abstract: A spring strut mounting for holding an upper end of a spring strut of a motor vehicle contains a spring strut dome with an articulation point for articulatedly connecting the upper end of the spring strut. The spring strut mounting further has a lower dome carrier which can be connected to a longitudinal member of the motor vehicle, and an upper dome carrier which can be connected to an A pillar of the motor vehicle, with the upper dome carrier engaging over the articulation point.

Abstract: An object of the invention is to provide a body frame structure for a straddle-type four wheeled vehicle having a light weight and a high rigidity. The body frame structure included, a pair of right and left upper frame members, a pair of right and left lower frame members; a front frame member; and a pair of right and left bracket members connecting rear ends of the upper frame members and rear ends of the lower frame members. The upper frame members, the lower frame members, the front frame member and the bracket members are made of aluminum or alloy including aluminum.

Abstract: A front structure 1 of a vehicle body has a shock absorber receiver 13 projecting forward from a dash panel 3, which is located at a position corresponding to a shock absorber 8 in a vehicle width direction and in a vehicle height direction. In the front structure 1 of the vehicle body, the shock absorber receiver 13 restricts backward movement of the shock absorber 8 upon a collision of a vehicle 2, so that a collision load acting on the shock absorber 8 can be efficiently dispersed to a framework of the vehicle body while being transmitted through the shock absorber receiver 13 to the dash panel 3. When the shock absorber 8 moves backward upon the collision of the vehicle 2, the shock absorber 8 comes into contact with the shock absorber receiver 13, and the distance becomes shorter between support points of the shock absorber 8 than before, so as to enhance flexural rigidity and reaction force.

Abstract: A vehicle front portion structure having a storage portion for facilitating maintenance for a vehicle front portion includes a first storage portion that includes a bottom portion extending in the longitudinal direction of a vehicle body, left and right walls extending upwardly from the bottom portion, a ceiling portion connecting the left and right walls and a back wall closing the respective backs of the bottom portion, left and right walls and ceiling portion. The first storage portion is provided with a maintenance opening formed to be spanned among the back wall, a left wall continuous with the back wall and the bottom portion continuous with the back wall, and with the lid body which covers the maintenance opening in an attachable and detachable manner. A key cylinder arrangement structure for a vehicle is provided that can significantly enhance operability of a key cylinder while preventing tampering or theft.

Abstract: A vehicle chassis assembly includes a frame assembly having a plurality of frame members connected together, a drivetrain, a suspension system, and an exhaust system. The connection of the frame members provides a low-profile configuration for reduced step height and a kick-up portion to allow ascent of steeper inclines. The frame further includes an exhaust pipe supported within a frame member and two castings bolted to removable wheel arches. The exhaust pipe has a circular cross-section that changes to a rectangular cross-section near the back of the chassis assembly.

Abstract: A vehicular frame assembly includes a mainframe, a support bracket, and a subframe. The support bracket is coupled with the mainframe. The subframe is coupled with the support bracket such that the subframe is stationary with respect to the mainframe. The support bracket is configured for pivotal attachment to a suspension element. Vehicles including a frame assembly having a support bracket are also provided.

Abstract: A suspension control system and a suspension control method for a vehicle control the suspension based on the condition of the road surface traveled by the vehicle in addition to information pertaining to a corner obtained from a navigation device when the vehicle approaches the corner. A microprocessor controls damping forces of suspension devices on the basis of a degree of irregularity of the road surface detected immediately preceding entry of the automobile into a turn around the corner, and corner information from the navigation device.

Abstract: Provided is a saddle-ride type four-wheeled vehicle capable of ensuring a sufficient clearance between a shock absorber and a front rod of an upper arm supporting front wheels, and also achieving satisfactory frame strength. The body frame of the saddle-ride type four-wheeled vehicle includes a lower frame extending below an engine to the rear of the vehicle. The body frame includes a front frame which is made of aluminum or aluminum alloy and located above the lower frame. In the front frame, pairs of arm-supporting portions which are spaced away from each other in a front-rear direction and support the front rods and a rear rods of the upper arms, and shock-absorber-supporting portions which are situated above the arm-supporting portions and support upper ends of the shock absorbers, are formed. The front frame has, at a forefront of the front frame, an extending portion extending obliquely upward and rearward from a lower end of the extending portion connected to the lower frame.

Abstract: A nut and retainer fastener assembly includes a one-piece retainer having a flat base with an opening and a plurality of retainer clips extending from the base around the opening. At least one flange nut is secured to the base between adjacent clips and offset from the opening in the base. The opening preferably is polygonal, most preferably rectangular (including square), and the clips preferably are disposed at corners of the opening. The clips preferably have integral spring fingers that extend from ends of the clips toward the base and at an angle away from the opening to capture the mounting wall between the base and the ends of the spring clips. The base preferably has an ear extending away from the opening, most preferably laterally opposed ears extending away from the opening, and a flange nut mounted on each of the ears for alignment with a fastener opening in the mounting wall when the nut and fastener assembly is secured to the wall.

Abstract: The invention relates to a vehicle suspension arm supporting structure. A receiving portion 9 is formed integrally on a subframe 5 which is formed of a light metal in such a manner as to extend transversely outwards, and a sheet steel member 15 is connected to the subframe 5 by a bolt or a nut in such a manner as to be situated below the receiving portion 9 of the subframe 5 at a predetermined interval. A base portion 13b of a suspension arm 13 is disposed between the receiving portion 9 of the subframe 5 and the sheet steel member 15, the base portion 13b of the suspension arm 13 is supported on the subframe 5 via a rubber bushing joint 14 by a connecting bolt 16 which vertically passes through the receiving portion 9 of the subframe 5 and the sheet steel member 15, and the receiving portion 9 of the subframe 5 is connected to a side member 4 by the connecting bolt 16.

Abstract: A method of mounting a battery box (10) on a frame rail (12). Fasteners and elements (36, 38; or 54, 56) provide spaced apart, axially tapered outer surfaces (46; 62) proximate a vertical side of the rail with the tapers narrowing toward the side of the rail. The box has tabs (28) having downwardly open throats (30). The box is hung on the rail by positioning the box so as to place each tab over a respective element (38 or 56) on the fastener (36 or 54) with the tab throat aligned with the element, and then lowering the box to cause the elements to enter the tab throats and the throats to come to rest on the elements so that at least some of the weight of the box is borne by the rail through the throats resting on the elements. With the throats resting on the elements, the tapered outer surfaces present axial interference to the tabs beyond the tabs relative to the rail. After the box has been hung, the box is fastened to the rail by additional fasteners.

Abstract: In one embodiment, a dual purpose spring holder mounting bracket pivotally receives a rear suspension spring arm and also receives a tensioning member extending to a forwardly positioned mounting bracket.

Abstract: A suspension system for use with a vehicle having a frame, two rails longitudinally spaced and secured to the vehicle frame, a hanger bracket depending from each rail, a beam pivotally mounted to each hanger bracket, an axle secured to and intermediate the beams, a support plate secured to each rail, a rail plate secured to each rail, and a bracket plate secured to each bracket. The suspension system includes two cross tubes, each with one end secured to a rail plate and the opposite end secured to the opposing side bracket plate. The system also includes a horizontal tube secured between each bracket plate.

Abstract: Vehicle front body structure includes, in each of its left and right sections, a damper housing having mounted thereon an upper portion of a suspension damper; a front side frame having the housing attached thereto; a damper housing connection bracket inserted in an opening of the frame; a welding section formed on the housing and fixed to the bracket; a lid fitted in the opening to form the frame as a closed-sectional-shape structure. The body structure also includes a collar nut provided within the side frame and supporting a sub frame, and each of the housings has a lower section connected to the collar nut.

Abstract: A vehicle chassis assembly includes a frame assembly having a plurality of frame members connected together, a drivetrain, a suspension system, and an exhaust system. The connection of the frame members provides a low-profile configuration for reduced step height and a kick-up portion to allow ascent of steeper inclines. The frame further includes an exhaust pipe supported within a frame member and two castings bolted to removable wheel arches. The exhaust pipe has a circular cross-section that changes to a rectangular cross-section near the back of the chassis assembly.

Abstract: A vehicle chassis comprises two longitudinal side rails (10, 12). A first cross member (14) extends in a transverse direction between the front ends of the side rails (10, 12) and a second cross member (20) extends in a transverse direction between the central portions of the side rails. The chassis further comprises two secondary longitudinal members (22, 24) extending between the first cross member (14) and the second cross member (20), and the secondary longitudinal members are each connected to the side rails by means of a central support section (28, 30) which is longitudinally spaced between the first and second cross members (14, 20). The structure provides rigid support for the vehicle suspension and for a eye recovery (42), and crumples in a controlled way on frontal impact.

Abstract: A frame or subframe for a tractor-trailer for supporting one or more axle/suspension systems includes a pair of spaced-apart, parallel, elongated, and longitudinally extending main members. At least one cross member structure extends between and is connected to the longitudinal main members using structural nodes. A bonding adhesive, or other suitable means of attachment, connects the cross member structure and the structural nodes to one another and to the main members. The structural nodes distribute loads encountered during vehicle operation generally over a relatively large area thereby generally reducing the concentration of such loadings at the connections, and assist in generally evenly distributing loads between the cross member structure and the main members to effectively react lateral, longitudinal, vertical, and racking loads. The combination of greater load distribution and reduced loading concentrations allows the structure to be constructed from lighter weight materials.

Abstract: A vehicle rear body structure includes a support frame of generally rectangular shape attached to side frames of a vehicle body from below for supporting thereon a vehicle part including a fuel tank. The support frame is connected at a front end thereof to floor frames disposed inwardly of the side frames and extending along front parts of the side frames and, at a rear end thereof, to rear frames forming rear parts of the side frames.

Abstract: A front part structure of a vehicle body is provided. A suspension frame is disposed posterior to a front-side component in a longitudinal direction of the vehicle. An apron side member extends in the longitudinal direction. An apron lower member extends in the longitudinal direction, connects the front-side component and the suspension frame and is disposed below the apron side member. The apron lower member is formed into a square cylindrical shape. Two walls of the apron lower member, which are opposed to each other are respectively fixed to the suspension frame.

Abstract: Front-axle bracket (1) for motor vehicles, in which in each case two receptacles or recesses (5, 6) for the bearings for the swivel mounting of in each case one of two wheel control elements (7), such as the wishbone or A-arm, and the receptacles (18, 19, 20) for the securing of the front-axle bracket are provided as a premanufactured unit together with preassembled assemblies on the vehicle body, and at least some of the receptacles or recesses listed below for the securing of the steering mechanism (13) the securing of the stabilizer (15) the mounting of a hinged column (14), and the front-axle bracket is produced in the form of a light-metal component which is integral with said receptacles or recesses and connects them to one another.

Abstract: Disclosed is an automobile toy, including: a first chassis to support an axle of a front wheel; and a second chassis to support an axle of a rear wheel, wherein the first and second chassis are rotatably connected with each other by a rotating shaft that lies along a width direction of the automobile toy, and a spring for biasing the first and second chassis is arranged between the first and second chassis, so as to bias the front wheel and the rear wheel to an approaching direction to the ground.

Abstract: A lower frame midrail structure for an automotive vehicle is formed from a pair of tubular members manufactured through a hydroforming process. The two tubular members are welded together in a longitudinally extending portion to provide support for the mounting structure of a bumper assembly. The joinder of the two tubular members creates a lower frame midrail cross-section that has a generally vertical internal web to strengthen and stiffen the midrail structure. The two tubular members laterally diverge from one another in a divergent zone in which the laterally spaced tubular members provide a stable interior and exterior support for a shock tower support member to be welded to the top of the tubular members. The hydroforming process can form openings in the sidewalls of the tubular members to permit passage of cross frame members to enhance the welding of the cross frame members to the midrail structure.

Abstract: A suspension member for connecting a vehicle body and a suspension device that comprises a pair of side members that extend in the longitudinal direction of the vehicle body and are located symmetrically relative to the center in the transverse direction of the vehicle body, and cross members interconnecting the pair of side members and extending in the transverse direction of the vehicle body. The suspension member is formed by press-molding only after flat plate-like side members and cross members are welded in butt joints.

Abstract: The invention relates to a suspension strut top mounting (1) in a body structure of a motor vehicle. The suspension strut top mounting (1) consists of two half-shells (2, 3) which are connected together in a rigid manner on the outer edge thereof (4, 5) and form a cavity (4) therebetween and are placed on top of each other in the support region (7) of the suspension strut top mounting (8). The suspension strut top mounting (1) is integrated into the body structure as a connecting node for adjacent hollow profiles (10, 12) of the body structure such that it reinforces and delivers a positive contribution to the crash behavior of the vehicle structure.

Abstract: In one embodiment, a dual purpose spring holder mounting bracket pivotally receives a rear suspension spring arm and also receives a tensioning member extending to a forwardly positioned mounting bracket.

Abstract: A front structure 1 of a vehicle body has a shock absorber receiver 13 projecting forward from a dash panel 3, which is located at a position corresponding to a shock absorber 8 in a vehicle width direction and in a vehicle height direction. In the front structure 1 of the vehicle body, the shock absorber receiver 13 restricts backward movement of the shock absorber 8 upon a collision of a vehicle 2, so that a collision load acting on the shock absorber 8 can be efficiently dispersed to a framework of the vehicle body while being transmitted through the shock absorber receiver 13 to the dash panel 3. When the shock absorber 8 moves backward upon the collision of the vehicle 2, the shock absorber 8 comes into contact with the shock absorber receiver 13, and the distance becomes shorter between support points of the shock absorber 8 than before, so as to enhance flexural rigidity and reaction force.

Abstract: A shock absorbing member includes a first member composed of a first tube and a second tube which is located at a center of the first tube. Shock absorbing material is filled between the first tube and the second tube. Two second members are located below the first member and connected to the first member by at least one board. Each second member has a third tube and a fourth tube which extends through the third tube. Shock absorbing material is filled between the third tube and the fourth tube. Four shock absorbing member are connected between a first frame and a second frame. The first members are connected with the first frame which carries power system such as engine, and the second members are connected to a second frame which is connected to wheels.

Abstract: A vehicle frame structure provides a large protected cavity. Lateral energy management zones absorb impact energy on the sides of the protected cavity, and forward and rearward energy management zones absorb impact energy forward and rearward of the protected cavity. In an exemplary embodiment, the frame is characterized by dual load paths along the protected cavity and by graduated front and rear energy management zones.

Abstract: The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordance with the application, the operator's cabin and the units with additional unit parts are mounted on a common frame construction. The frame construction is uncoupled from the support frame.

Abstract: To enhance productivity by further enhancing the ease of assembly in a main assembly line in a suspension installation structure for a vehicle. Cantilever frames (that is, first inclined frames and lower main frames) that protrude toward the front of a vehicle (or toward the rear of the vehicle) are provided to a body frame. Brackets (that is, an upper bracket, a lower front bracket and a lower rear bracket) are fastened to the cantilever frames by bolts as a fastener.

Abstract: The present invention provides a device for reinforcing the rear end of a vehicle having a ladder-type frame. The device includes a first bar that is adapted to be secured between the left side rail and right suspension attachment of the vehicle frame and a second bar adapted to be secured between the right side rail and left suspension attachment such that the first and second bars are mounted to the frame in a crosswise fashion with respect to each other between the side rails. The device is mounted adjacent the rear of the vehicle frame whereby torsional stiffness and rigidity can be added to the rear of the frame and lateral deflection of the suspension attachments that occurs during aggressive driving is sharply minimized.

Abstract: A frame structure is provided in which a sub-frame is fixed to a rear portion of a vehicle body frame, and serves as a suspension-supporting portion of the vehicle body frame. In the sub-frame, a rear member extends between a sub-frame upper pipe and a sub-frame lower pipe. The rear member includes a rear upper arm supporting portion and a rear lower arm supporting portion, for supporting proximal ends of an upper arm and a lower arm of a rear suspension. The frame structure hereof improves accuracy and rigidity of the suspension-supporting portion of the vehicle body frame, and provides a simplified structure as compared to conventional frame structures.