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US 10,064,484 B2Granted
Lift table
AssigneeSing Bee Enterprise Co., Ltd.
InventorChi-Cheng Tsai
Life of this patent
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Abstract
A lift table includes a base unit having a supporting beam connected between two legs. An elongated member is connected to a first linking rod, a second linking rod and a third linking rod and is pivotably connected to the legs. The first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the legs and are, thus, pivotable relative to the base unit. A telescopic actuator includes two ends pivotably connected to the supporting beam and the second linking rod, respectively. A top board unit is pivotably connected to the first and third linking rods and includes a switch operable to actuate the actuator to proceed with a telescope movement, causing the first and third linking rods to pivot relative to the legs, thereby lifting or lowering the top board unit.
Claims8
A lift table comprising:
- a base unit including a first leg, a second leg, and a supporting beam connected between the first leg and the second leg;
- a linking rod unit including an elongated member, a first linking rod, a second linking rod, and a third linking rod, wherein the elongated member is connected to the first linking rod, the second linking rod and the third linking rod and is pivotably connected to the first leg and the second leg, wherein the first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the first leg and the second leg and are pivotable relative to the base unit;
- an actuator includes a first end pivotably connected to the supporting beam and a second end pivotably connected to the second linking rod, wherein the actuator is telescopic;
- and
- a top board unit pivotably connected to the first linking rod and the third linking rod and including a switch, wherein the switch is operable to actuate the actuator to proceed with a telescope movement, causing the first linking rod to pivot relative to the first leg and causing the third linking rod to pivot relative to the second leg, thereby lifting or lowering the top board unit, wherein the supporting beam includes a supporting portion, wherein the actuator includes a cylinder, a push rod, and an actuating portion, wherein the cylinder is pivotably connected to the supporting portion, wherein the push rod includes a first end slideably received in the cylinder and a second end, wherein the actuating portion is connected to the second end of the push rod and is pivotably connected to the second linking rod, wherein the top board unit includes an actuation cord having a first end connected to the switch and a second end connected to the actuating portion, wherein when the switch is not pressed, the push rod is not slideable relative to the cylinder, and wherein when the switch is pressed, the actuating portion is actuated via the actuation cord, and the push rod is slideable relative to the cylinder.
2 more elements
A lift table comprising:
- a base unit including a first leg, a second leg, and a supporting beam connected between the first leg and the second leg;
- a linking rod unit including an elongated member, a first linking rod, a second linking rod, and a third linking rod, wherein the elongated member is connected to the first linking rod, the second linking rod and the third linking rod and is pivotably connected to the first leg and the second leg, wherein the first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the first leg and the second leg and are pivotable relative to the base unit;
- an actuator includes a first end pivotably connected to the supporting beam and a second end pivotably connected to the second linking rod, wherein the actuator is telescopic;
- and
- a top board unit pivotably connected to the first linking rod and the third linking rod and including a switch, wherein the switch is operable to actuate the actuator to proceed with a telescope movement, causing the first linking rod to pivot relative to the first leg and causing the third linking rod to pivot relative to the second leg, thereby lifting or lowering the top board unit, wherein the top board unit includes a first adjusting member, a first connecting member, a first knob, and a top board, wherein the first adjusting member includes a first adjusting track, a first pivotal portion, and a second pivotal portion, wherein the first adjusting track extends from a first side of the first adjusting member through a second side of the first adjusting member opposite to the first side of the first adjusting member, wherein the first pivotal portion is located between the first adjusting track and the second pivotal portion, wherein an end of the first linking rod remote to the elongated member is pivotably connected to the first pivotal portion, wherein the first connecting member is pivotably connected to the second pivotal portion of the first adjusting member and includes a first screw portion slideably extending through the first adjusting track, wherein the first knob is in threading connection with the first screw portion and selectively presses against the first adjusting member, wherein the first connecting member and the first knob clamp the first adjusting member, wherein the first connecting member is connected to the top board, and wherein the switch is mounted to an end of the first connecting member remote to the second pivotal portion.
2 more elements
Dependencies are inferred from the claim text.