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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||188/21 ; 188/2D ; 188/17 ; 188/74|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 16 인용 특허 : 0|
Lever-mounted brake pads are applicable to two non-swiveling wheels at the rear of a hand truck. The pads are normally spaced away from the wheel treads by return springs. A foot pedal at the front of the truck is operable between two positions, one of them being a “brake off”position, and the other being a “brake on”position. Cranks are connected to the pedal and have links and cables associated with them and with the brake pad levers whereby the pedal, operating through the cables, is useful to either simultaneously apply both brakes in one pedal posit...
In a braking system for a hand truck having four wheels and a frame supported by the wheels, the improvement comprising: brake pads engageable with two of the wheels: levers pivotally mounted to the frame, each of the levers having one or the other of the pads near one end of the lever, return springs each having one end connected to the frame and another end connected to one or the other of the levers, the return springs normally biasing the pads away from the wheels, a rocker shaft mounted to the frame, crank arms extending out from the rocker shaft an...