DESC:TECHNICAL FIELD
[0001] The present subject matter relates to a two-wheeled vehicle. More particularly, the present subject matter relates to an anchorage unit for the two-wheeled vehicle.
BACKGROUND
[0002] Braking systems in vehicles are used to reduce the speed of a moving vehicle or to bring the vehicle to a stop. To accomplish these braking events, the braking system generates a braking force to overcome the force of an engine and the inertia of the vehicle. Several types of known braking systems are used on vehicles, including, but not limited to, disc brake and drum brake.
[0003] Generally, the brake is attached to the frame via a central hole for the axle and a brake stay or bar. The stay is attached to the brake and transmits the force of braking into the non-rotating part of the two-wheeled vehicle. In the front fork drum brake installations, the stay is replaced by a cast on lug on braking plate and a fixedly attached on receptacle on the fork leg. Typically, such brake stays acts as a detent portion for restricting the rotation of brake panel along with the rotating wheel and is fitted to the projection of the front forks. In this arrangement, the wheel system component cannot be disassembled easily and the user rarely does maintenance on these components directly. Thus, resulting difficultly in serviceability and brake load distribution

BRIEF DESCRIPTION OF THE DRAWINGS
[0004] This invention will be better understood by referring to the accompanying drawings, wherein:
[0005] Fig.1 is a right side view of a two-wheeled vehicle as per one embodiment of the present invention.
[0006] Fig.2 is a side view of a rear wheel suspension system with an anchorage unit secured to a brake panel through a swing arm as per one embodiment of the present invention.
[0007] Fig.3 is a perspective view of the anchorage unit as per one embodiment of the present invention.
[0008] Fig.4 is a perspective view of the anchorage unit with a base plate, at least one pin, at least one bolt hole and said at least one offset plate hole in one embodiment of the present invention.
[0009] Fig.5 is a cross-sectional view of the anchorage unit with the base plate and said atleast one pin as per one embodiment of the present invention.
[00010] Fig.6, Fig.7 illustrates exploded view of the anchorage unit on the brake panel through the swing arm as per one embodiment of the present invention.
[00011] Fig.8 shows a fragmentary front perspective view illustrating the anchorage unit for securing the swing arm to the brake panel as per one embodiment of the present invention.
[00012] Fig.9 is an exploded view of anchorage unit on at least a portion of the swing arm as per one embodiment of the present invention.
[00013] Fig.10 is a perspective view of the rear wheel being rotatably mounted to swing arm at rotational axis as per one embodiment of the present invention.
[00014] Fig.11 shows top view of the anchorage unit detachable fixation to the brake panel as per one embodiment of the present invention.
[00015] Fig.12 is an exploded view of the anchorage unit on said atleast a portion of the swing arm as per one embodiment of the present invention.
[00016] Fig.13 is a perspective view of the swing arm for the two-wheeled vehicle as per one embodiment of the present invention.
[00017] Although the characteristic features of this invention will be particularly pointed out in the claims, the invention itself, and the manner in which it may be made and used, may be better understood by referring to the following description taken in connection with the accompanying figures forming a part thereof.
[00018] The detailed description is described with reference to the accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
DETAILED DESCRIPTION
[00019] The present invention relates to a brake system of the rear wheel of a two-wheeled vehicle. Most particularly, the object of the present invention is to provide for an anchorage unit, which is adaptable to restrict the rotation of the brake panel along with the rotating wheel.
[00020] The two-wheeled vehicle comprises a frame extending along a vehicle longitudinal direction, at least one wheel, a suspension for resiliently mounting the wheel relative to the chassis, brake means for applying a braking torque to the wheel. Braking system for two wheeled vehicle comprises brake drum on the front and rear wheels. A rear wheel is journalled in swing arm and a front wheel is journalled in the front steering fork which is steered by usual handlebars.
[00021] The suspension system for a two-wheeled vehicle rear wheel includes a swing arm that has a wheel axle on a longitudinal suspension mounted on a shock system. The swing arm is formed as a fork providing a large aperture for the wheel. The swing arm assembly provide strength and support to the body frame. The rear wheel is supported on the free end side of the swing arm. Generally, swing arm supports drive mechanism for the two-wheeled vehicles with chain or belt drive. Thus, the rear wheel is rotatably driven rear wheel drive mechanism provided in the swing arm. A torque transmission member provided between the swing arm and the rear wheel brake supporting the rear wheel, the rotating lever continuing through the wire to the torque transmitting member is housed in the case of the brake unit. The brake unit or brake drum is mounted on axle hub and whole assembly is hold in the rear wheel The brake unit and shock absorbers are fastened to the right side rear-wheel swing arm, placed on the right rear wheel of the two-wheeled vehicle, while the other end of the rear swing arm fastened to the engine crankcase right, left rear left shock absorber is mounted on the engine crankcase.
[00022] With braking mechanism, rear brake stays or detent element must be tied somehow to the non-rotating part of the moving two-wheelers. There can be a long stay or a lug on the brake backing plate fitting into a notch on the swing arm. The result is the braking acts to jack the suspension down in the rear. The detent part is hooked to the rear surface of the side plate portion, and is formed such that a contact area between the detent part and the rear surface of the side plate portion is reduced. Thus, preventing the rotation of the brake panel along the rotating wheel. The detent elements or brake attachment point are generally casted or fixedly attached on receptacle on the fork leg. Hence, serviceability for wheel becomes difficult.
[00023] With these objects in view, the present invention provides an anchorage unit for attachment to a brake panel. The anchorage unit is a detachable fastening of the swing arm with the brake panel. The anchor unit comprises of a base plate, at least one hole in the plate to assist in securing the plate to a swing arm of a two wheeled vehicle, at least one pin fixedly attached to the base plate on the plate. The base plate having at least one offset plate hole. Weld means provides for attaching the at least one pin with the base plate. The anchorage unit wherein weld means provides for attaching said at least one pin to said at least offset plate hole. As per the present invention, the base plate acts as a support base and is adaptable for securing the swing arm to the brake panel so as to prevent the restricting the rotation of brake panel with the rotating wheel. A base plate, of a rigid metal is provided. In anchorage unit, said at least one bolt hole and said at least one offset plated hole are spaced from each other.
[00024] With reference to the present invention, the anchorage unit is secured detachably by fastening means to the brake panel such that the brake panel is detachable from the swing arm through the anchorage unit. Said at least one bolt and said at least one pin are inserted into at least two bores in the swing arm, and with such fastening the rotation in the brake panel is prevented.
[00025] The object of the invention is to provide said anchorage unit for preventing the rotation of the brake panel along with the rotating wheel. Another object of the present invention is to provide a detachable anchorage unit for securing to the brake panel through the swing arm, therefore providing better serviceability of wheels .In present invention, the swing arm of the two-wheeled vehicle has bores therein for guiding the anchorage unit to the brake panel .The anchorage unit has at least one pin and at least one bolt hole. The at least one pin is fixedly attached to the base plate through at least one offset plate hole. At least one bolt is inserted into the bolt hole and secured to the swing arm through at least two bores present in the swing arm. The said at least one pin and said at least one bolt is guided to the swing arm.
[00026] Fig.1 illustrates a right side view of a two-wheeled vehicle (10) (hereinafter ‘vehicle’) as per one embodiment of the present invention. In one embodiment, the vehicle (10) includes a frame (not shown) with at least one concave portion, a floorboard (14) a spring and shock absorber unit (17), a front wheel (15) and a rear wheel (18), the fuel engine and transmission system (13), braking system. In one embodiment, a seat assembly (12) is positioned above a storage compartment and is supported by the pair of railing (s). A rear fender (30) is covering at least a portion of the rear wheel (18) and it is positioned below the fuel tank (not shown). In one embodiment, the vehicle (10) comprises the frame which includes a head tube, a down tube and a sub frame. The frame extends from a front portion (F) to a rear portion (R) of the vehicle (10). Further, the frame extends downward from the anterior portion of the head tube and then extends to a rear portion (R) of the vehicle (10) in inclined manner. In one embodiment, the vehicle (10) comprises of a plurality of electrical and electronic components including rear view mirrors (20), a headlight (21), a taillight (19), a transistor controlled ignition (TCI) unit (not shown). Further, as per one embodiment, A two legged stand (7) is used to support and hold the vehicle (10).A per one embodiment, an internal combustion engine (13) is mounted on the swing arm (16), which is swingably connected to the frame using a toggle link. The swing arm (16) mounted is pivotally to the frame. A front fender (31) is covering the front wheel (15). In one embodiment, the floorboard (14) is provided at the step-through space. A cantilevered rear axle. A wheel hub (not shown) is rotatably mounted on a cantilevered rear axle. The rear wheel (18) for the vehicle (10) is rotatably mounted in the swing arm (16) at a fixedly positioned said cantilevered rear axle. A brake system is located between the swing arm (16) and the wheel hub. The brake system comprises a brake drum (27) (shown in Fig.2) and secured to the rear wheel (18). In one embodiment, the brake drum (27) has a drum provided in the hub of said rear wheel (18) and the brake panel (24) provided to cover the opening of the brake drum (27).
[00027] Fig.2 is a side view of a rear wheel suspension system with the anchorage unit (100) secured to the brake panel (24) of the brake drum (27) through the swing arm (16) of the vehicle (10) as per one embodiment of the present invention. In one embodiment, the rear wheel (18) of the vehicle (10) of Fig.1 is suspended from a vehicle frame (not shown) by the swing arm (16) and the spring and shock absorber unit (17). In one embodiment, said spring and shock absorber (17) is pivotally connected at one end adjacent the rear wheel (18) and is pivotally connected at the other end to the vehicle frame. In one embodiment, said spring and shock absorber (17) is mounted to swing arm (16) at shock mount and resiliently connects the swing arm (16) to the vehicle frame at shock mount. The brake panel (24) and said spring and shock absorber unit (17) are fastened to the right side of the rear-wheel (18). With this configuration, while said spring and shock absorber unit (17) is placed at the lateral almost-middle of the vehicle (10), the drive shaft and the brake drum (27) are disposed on the left side and right side, respectively, of said spring and shock absorber unit (17). As per one embodiment, the anchorage unit (100) is being detachably fastened to the brake panel (24) through the swing arm (16). The anchor unit (100) is secured to the brake panel (24) through the swing arm (16) such that restricting the rotation of brake panel (24) along with the rotating real wheel (18). The anchorage unit (100) provides for the detachable fixation of the swing arm (16) to the brake panel (24).
[00028] Fig.3 is a perspective view of the anchorage unit (100) as per one embodiment of the present invention. In one embodiment, the anchorage unit (100) for the vehicle (10) comprises the base plate (100a).As per one embodiment, the base plate (100a) has at least one bolt hole (100c). In one embodiment, said least one pin (100b) is mounted on the base plate (100a). The anchorage unit (100) is adaptable for detachably securing the swing arm (16) to the brake panel (24) so as to restrict the rotation of the brake panel (24) along with the rotating rear wheel (18). The base plate (100a) is made up of rigid metal. The anchorage unit (100) for the two-wheeled vehicle abuts against the brake drum (27) through at least two bores (28), (29) (shown in Fig.9) in the swing arm (16). The anchorage unit (100) provides for the detachable fixation of the swing arm (16) to the brake panel (24) of said brake drum (27) in the rear wheel (18).
[00029] Fig.4 illustrates a perspective view of the anchorage unit (100) including said base plate (100a), said at least one pin 100b, said at least one bolt hole (100c) and said at least one offset plate hole (100d). In one embodiment of the present invention, the base plate (100a) has at least one offset plate hole (100d) with a lower end of said at least one pin (100b) is mounted in said at least offset plate hole (100d). As per one embodiment, weld means provides for the attachment of said at least one pin (100b) to the base plate (100a) when set into said offset plate hole (100d). Thus, the anchorage unit (100) as per the present invention has said at least one bolt hole (100c) and said at least one offset plate hole (100d). As per one embodiment, said at least one pin (100b) is attached the base plate (100a) by welding, when put or set into said at least one offset hole (100d). Thus, through at least one bolt (26), the anchorage unit (100) is secured to the swing arm (16) and through said at least one pin (100b). In one embodiment, the swing arm (16) is detachably fastened to the brake panel (24).
[00030] Fig.5 is a cross-sectional view of the anchorage unit (100) with the base plate (100a) and said at least one pin (100b) as per one embodiment. In one embodiment, the anchorage unit (100) comprises of said at least one pin being fixedly attached by welding in the said at least one offset plate hole (100d). The base plate (100a) comprises said at least one bolt hole (100c). As per one embodiment of the present invention, said at least one bolt (26) is inserted into said at least one bolt hole (100c) and thus is detachably secured to the brake panel (24) through swing arm (16).
[00031] Fig.6, Fig.7 illustrates exploded view of the anchorage unit (100) on the brake panel (24) through the swing arm (16) of the vehicle (10). The vehicle equipped (10) with the rear wheel (18) brake drum (27) is fitted with the brake panel (24) covering an opening of the brake drum (27), and a support part which is fixed on the opposite side the brake panel (24) with respect to the brake drum (27) is fixed to the support. As per one embodiment, the anchorage unit (100) is having said base plate (100a) and said at least one pin (100b). In one embodiment, said at least one bolt (26) is inserted to said at least one bolt hole (100c). As per one embodiment, said at least one pin (100b) is detachably fixed to the brake panel (24) through insertion into a slot (28) provided in the brake panel (24). The anchorage unit through the swing arm (16) is detachably fastened to the brake panel (24) of the brake drum (27).
[00032] Fig.8 shows a fragmentary front perspective view illustrating the anchorage unit (100) for securing the swing arm (16) to the brake panel (24) as per one embodiment of the present invention. In one embodiment, the anchorage unit (100) is detachably secured by said at least one bolt (26) and at least one pin (100b) to the brake panel (24) through the swing arm (16). The brake drum (27) mounted after hub assembly on the rear wheel (18). The brake drum (27) is held together by a bearing mounted on the rear wheel (18) is equipped with anchorage unit (100). The rear wheel (18) and the brake drum (27) are assembled together, so that the rotation of the rear wheel (18) can be made can be easily after braking. Thus, the anchorage unit (100) as per present invention is secured into the slot (28) provided into brake panel (24). In one embodiment, the attachment of the anchorage unit is to brake panel (24) through the swing arm (16) is detachable.
[00033] Fig.9 illustrates an exploded view of anchorage unit (100) detachably secured on at least some portion of the swing arm (16) as per one embodiment of the present invention. The anchorage unit (100) is detachably secured to the brake panel (24) through at least two bores (28), (29) in the swing arm (16). The anchorage unit (100) is secured to the swing arm (16) through said at least two bores (28), (29) formed in the swing arm (16). As per one embodiment, said at least one pin (100b) is being fixedly attached on the base plate (100a), is inserted into one bore of said at least two bores (28), (29) into the swing arm (16) and said atleast one bolt (26) is inserted to the other bore of said at least two bores (28), (29) in the swing arm (16). The anchorage unit (100), through said at least two bores (28), (29) are inserted into the brake panel (24).
[00034] Fig.10 perspective view of the anchorage unit (100) detachably secured to the brake panel (24) as per one embodiment of present invention. The rear wheel (18) is rotatably mounted to swing arm (16) at rotation axis. In one embodiment, the anchorage unit (100) is being secured detachably to the brake (27) through the swing arm (16). The rear wheel (18) is rotationally carried between said left swing arm portion (16L) and the right swing arm portion (16R) of the swing arms (16) at one end of the swing arm (16). The other end of the swing arms is pivotally mounted on a common axis to the frame. In one embodiment, the anchorage unit (100) is fastened to the brake panel (24) through the bores (not shown) in the swing arm (16).
[00035] Fig.11 shows top view of the anchorage unit (100) detachably secured to the brake panel (24). As per one embodiment, the brake panel (24) provides covering for the brake (27) on the swing arm (16). As per one embodiment, said at least one pin (100b) is secured to the brake panel (24). Thus, the anchorage unit (100) gets secured to the swing arm (16) through said at least one bolt (26) inserted in at least one bolt hole (100c) and attached to the brake panel (24) through said at least one pin (100b).
[00036] Fig.12 illustrates exploded view of the anchorage unit (100) on the portion of swing arm (16) as per one embodiment of the present invention. In one embodiment, the swing arm (16) includes a left swing arm portion (16L) and a right swing arm portion (16R) serves to mount the rear wheel (18). The swing arm (16) consists of a rigid, possibly formed of a tubular frame. The anchorage unit (100) is detachably secured to the swing arm (16) through said atleast two bores (not shown) in the swing arm (16).
[00037] Fig.13. is the perspective view of the swing arm (16) for the vehicle (10) as per one embodiment of the present invention.In one embodiment, the swing arm (16) as a support member is coupled swingably to the vehicle (10) by supporting the rear wheel (18). The anchorage unit (100) is secured to the to the swing arm (16) through said at least two bores (28), (29) provided in at least a portion of the swing arm (16).As per one embodiment, said at least one bolt (26) is secured to the swing arm (16) through said at least one bolt hole (100c) in the base plate (100a). In one embodiment, said at least one pin (100b) of the anchorage unit (100) is adapted to be removably secured to the brake panel (24). Thus, the anchorage unit (100) is detachably secured to the brake panel (24) through said at least two bores through the swing arm (16).
[00038] Advantageously, as per the present invention, the anchorage unit for removably fastening the brake panel to the swing arm in such a manner that the fastening may be completely withdrawn from the brake panel and the swing arm, thus helps in achieving better serviceability & brake load distribution. It is an advantage of the invention that the wheel assembly and brake assembly are separated from each other by the detachable anchorage unit to permit sufficient reductions in size for the brake assembly.
[00039] Improvements and modifications may be incorporated herein without deviating from the scope of the invention.
,CLAIMS:I/We claim:
1. A two-wheeled vehicle (10), said vehicle (10) comprising:
a front wheel (15) and a rear wheel (18) generally positioned in line with the front wheel (15);
a swing arm (16) pivotally supporting the rear wheel (18); and
a brake system (200) including a brake drum (27) being detachably secured to said rear wheel (18); and
a brake panel (24) provided to cover said brake drum (27);
wherein a brake system (200) for the two-wheeled vehicle (10) further comprises an anchorage unit (100) configured for detachably securing said swing arm (16) to said brake panel (24) so as to restrict the rotation of the brake panel (24) along with the rotating rear wheel (18).
2. The two-wheeled vehicle (10) as claimed in claim1, wherein said anchorage unit (100) comprises a base plate (100a) and at least one pin (100b) mounted on said base plate (100a).
3. The two-wheeled vehicle (10) as claimed in claim 2, wherein said base plate (100a) has at least one bolt hole (100c) and at least one offset plate hole (100d).
4. The two-wheeled vehicle (10) as claimed in claim 3, wherein a lower end of said at least one pin (100b) is fixedly attached in said at least one offset plate hole (100d).
5. The two-wheeled vehicle (10) as claimed in claim 4, wherein at least one bolt (26) is secured to the swing arm (16) through said at least one bolt hole
(100c) in the base plate (100a) for detachably securing said swing arm (16) to the brake drum (27) of the vehicle (10).
6. The two-wheeled vehicle (10) as claimed in claim 1, wherein said base plate (100a) is made up of rigid metal.
7. The two-wheeled vehicle as claimed in claim 1, wherein weld means provides for attaching said at least one pin (100b) to said base plate (100a) when set into said at least one offset plate hole (100d).
8. The two-wheeled vehicle (10) as claimed in claim 1, wherein said anchorage unit (100) abuts against said brake drum (27) through at least two bores in said swing arm (16).
9. The two-wheeled vehicle (10) as claimed in claim 1, wherein the anchorage unit (100) is secured to the swing arm (16) through said at least two bores (28), (29) provided in at least a portion of the swing arm (16).
10. The two-wheeled vehicle (10) as claimed in claim 1, wherein said anchorage unit (100) provides for the detachable fixation of said swing arm (16) to said brake panel (24) of said brake drum (27) in said rear wheel (18).