Patent Grant
9751736
Various types of vehicle tire jacks are known in the prior art. However, in contrast to previously known vehicle tire jacks, the present manual vehicle ramp jack with an auxiliary hydraulic jack provides a pair of tire ramps and a lifter base attached to a front end of each tire ramp and permits the lifting of both tires simultaneously with a foot-depressible crossmember operationally connecting a pair of manually operated mechanical foot jacks disposed within their respective lifter base and alternately the lifting of the tires individually with a foot-operated hydraulic bottle jack disposed in each lifter base. The hydraulic jack assists in lifting the tires to a height greater than to a height permitted by the manual vehicle ramp jack.
The present invention relates to a vehicle tire jack, and more particularly, to a manual vehicle ramp jack with an auxiliary hydraulic jack.
The general purpose of the present, described subsequently in greater detail, is to provide a manual vehicle ramp jack with an auxiliary hydraulic jack which has many novel features that result in a manual vehicle ramp jack with an auxiliary hydraulic jack which is not anticipated, rendered obvious, suggested, or even implied by prior art, either alone or in combination thereof.
To accomplish this, the present manual vehicle ramp jack with an auxiliary hydraulic jack includes a pair of parallel tire ramps and a lifter base disposed on the front end of each tire ramp. Each lifter base includes a lower side, a substantially open front side having a perimeter-disposed frame and a central opening, a rear side, a right side, a left side, and an upper side. A central aperture is disposed within the upper side. The riser plate is disposed within the central aperture parallel to the lifter base lower side when the riser plate is in a lowered, recessed condition and is alternately disposed outside of the central aperture parallel to the lifter base lower side when the riser plate is in an alternate raised condition. The riser plate has a recessed receptacle sized to receive a tire therein and also has a protruding outer edge that rests on the upper side of the lifter base when the riser plate is in the lowered, recessed condition.
A manually operated mechanical foot jack is in operational communication with the riser plate of each lifter base and with each other. A foot-depressible crossbeam operationally connects the foot jacks together which permits the foot jacks to be operated simultaneously to raise and lower their respective riser plates. A mechanical hydraulic toe jack includes a bottle jack disposed within the respective lifter base and is in alternate operational communication with the riser plate of one of each of a respective lifter base to raise and lower the respective riser plate. The foot jack and the toe jack are alternately configured to lift and alternately lower the riser plate of the respective lifter base.
Thus has been broadly outlined the more important features of the present manual vehicle ramp jack with an auxiliary hydraulic jack so that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated.
Figures
With reference now to the drawings, and in particular
Referring to
A lifter base 35 is disposed on the front end 22 of each tire ramp 20. Each lifter base 35 includes a lower side 37, a substantially open front side 38 having a perimeter-disposed frame 39 and a central opening 40, a rear side 42, a right side 43, a left side 45, and an upper side 46. A central aperture 48 is disposed within the upper side 46. An internal compartment 50 is continuously disposed between the lower side 37, the front side 38, the rear side 42, the right side 43, the left side 45, and the upper side 46, and a concave riser plate 52 engaging the central aperture 48. The riser plate 52 is disposed within the central aperture 48 parallel to the lifter base 35 lower side 37 when the riser plate 52 is in a lowered, recessed condition. The riser plate 52 is disposed outside of the central aperture 48 in a position parallel to the lifter base 35 lower side 37 when the riser plate 52 is in an alternate raised condition. The riser plate 52 has a recessed receptacle 55 sized to receive a tire therein and also has a protruding outer edge 56 that rests on the upper side 46 of the lifter base 35 when the riser plate 52 is in the lowered, recessed condition.
A manually operated mechanical foot jack 60 is in operational communication with the riser plate 52 of each lifter base 35 and with each other. Each foot jack 60 includes a footer 62 is disposed on the lower side 37 within the internal compartment 50 of the respective lifter base 35. A lever 64 is disposed atop the footer 62 and has a bar 66 extending through the front side 38 of the lifter base 35. A parallelepiped foot pedal 68 is disposed on an exterior end 70 of the bar 66. Each foot pedal 68 has a forward wall 72, an openable lid 73, an interior cavity 75, and a notch 76 disposed on an internal side 77 thereof. The notch 76 is open on a top edge 79 of the respective foot pedal 68.
The foot jack 60 also includes a crossbeam 81 operationally connecting the foot jacks 60 together which permits that foot jacks 60 to be operated simultaneously. The crossbeam 81 has a pair of outer ends 83. A parallelepiped attachment member 85 is disposed on each of the outer ends 83 of the crossbeam 81. Each outer end 83 of the crossbeam 81 engages the notch 76 of the respective foot pedal 68 and each attachment member 85 securingly engages the interior cavity 75 of the respective foot pedal 68. The crossbeam 81 further has a parallelepiped foot member 87 disposed thereon substantially midway between the lifter bases 35. The foot member 87 has a right wall 88 and a left wall 89 and an arm 90 extending from a respective one of the right wall 88 and the left wall 89 to the crossbeam 81. The foot member 87 is disposed on a same side of the crossbeam 81 as the forward wall 72 of the foot pedal 68. The foot member 81 is pivotable between an upward position and a downward position. When the foot member 87 is pivoted from the upward position to the downward position, each of the foot pedals 68 bears against the ground and, in turn, the respective lever 64 engages the riser plate 52 to move the riser plate 52 from the lowered, recessed condition to the raised condition.
A mechanical hydraulic toe jack 91 is in alternate operational communication with the riser plate 52 of one of each of a respective lifter base 35. Each toe jack 91 includes a hydraulic bottle jack 92 disposed within the internal compartment 50 of the respective lifter base 35 A head saddle 94 is disposed atop and in operational communication with the bottle jack 92. An external shaft 95 extends from the bottle jack 92 through a vertically disposed central slot 96 in a respective one of the right side 43 and the left side 45 of the respective lifter base 35 and is in operational communication with the bottle jack 92. A parallelepiped toe saddle 97 is disposed on an external end 98 of the external shaft 95. The toe saddle 97 is moveable between an upper position within the central slot 96 and a lower position within the central slot 96. When the toe saddle 97 is moved from the upper position to the lower position, the external shaft 95 is in operational communication with the hydraulic toe jack 91 to move the head saddle 94 from a raised condition to a lowered condition. When the head saddle 94 is in the raised condition and the alternate lowered condition, the riser plate 52 is in a lifted condition and alternate lowered condition, respectively. The foot jack 60 and the toe jack 91 are alternately configured to lift and alternately lower the riser plate 52 of the respective lifter base 35.
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