IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0894005
(2001-06-29)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
7 |
초록
▼
The present invention discloses a braking device for a motive winch, mainly having a sectional axle, an elastic member, two engraved chunks, and a clutch base in a retardation compartment of the motive winch; wherein said first engraved chunk is coupled to the sectional axle, having a braking plate
The present invention discloses a braking device for a motive winch, mainly having a sectional axle, an elastic member, two engraved chunks, and a clutch base in a retardation compartment of the motive winch; wherein said first engraved chunk is coupled to the sectional axle, having a braking plate being contacted with the frictional surface in the retardation compartment; the elastic member has an appropriate whirling force with respect to the first engraved chuck such that the braking plate of the first engraved chuck tends to press against the frictional surface of the retardation compartment; the second engraved trunk is coupled to the sectional axle and rotates synchronously, such that the first and second engraved chucks are capable of being attached to each other to push the brake plate of the first engraved trunk to generate the braking action on an inclined surface and the clutch base brings a protruded member to rotate, and the protruded members on the two engraved chunks is pushed by the protruded trunk at the inner side of the clutch base, and the axle of the motor brings the mechanical force for the clutch base. Such arrangement can stop the braking action by bringing the two engraved trucks to rotate simultaneously in the clutch base when the motor is operating. When the motive force is stopped, the pulling force due to the reaction of heavy substance comes from the cable wire reel makes the inclined plane of the second engraved trunk to push the inclined plane of the first engraved trunk such that the brake plate and the frictional surface contact with each other tightly, and hence attains the braking effect.
대표청구항
▼
1. A braking device for a motive winch, comprising: a retardation compartment being disposed on the motive winch, and having a penetrating hole in a middle thereof adapted for allowing a motor axle to pass therethrough, and a sectional axle to extend thereinto, the sectional axle extending into t
1. A braking device for a motive winch, comprising: a retardation compartment being disposed on the motive winch, and having a penetrating hole in a middle thereof adapted for allowing a motor axle to pass therethrough, and a sectional axle to extend thereinto, the sectional axle extending into the penetrating hole of the retardation compartment, and a sidewall thereof at an end facing the penetrating hole has teeth engaged to a retardation gear set for engagement to a transmission device, and a sidewall on another end of the sectional axle has teeth which can be engaged with inner teeth of a second engraved trunk for the transmission device; an elastic member being sleeved into the sectional axle, the sectional axle including a hole disposed thereon for receiving an end section of the elastic member; a first engraved trunk having a hole on the sectional axle facing the elastic member, and an external edge thereof includes a brake plate and the side of the first engraved trunk facing the elastic member has a hole for receiving the insertion of an end of the elastic member for positioning, when the elastic member is installed the first engraved trunk slightly rotates and presses with respect to the elastic member such that the first engraved trunk with respect to the elastic member can have whirling force sufficient to push the brake plate of the first engraved trunk, and the brake plate contacts a frictional surface being set on the retardation compartment and a ringed base being disposed on a top surface thereof with a plurality of up and down inclined planes outwardly protruded from the end of the elastic member facing backwards to the first engraved trunk, and an external wall of the ringed base has a pair of outwardly protruded latching members; a second engraved trunk having a hole in a middle thereof and inner teeth being engaged with the corresponding teeth of the sectional axle, the inclined plane and a protruded latching member of the first engraved member facing the second engraved member also have a corresponding inclined surface and the protruded latching member; a clutch base, a latching hole corresponding to the latching end of the motor axle disposed in and facing the middle of the latching end of the motor axle, and the inner side of the clutch base has a pair of protruded trunks to push the protruded latching members of the first and second engraved trunks; and a bushing being inserted onto a corresponding bushing base of the clutch base, and the external side of the bushing is restricted by the protruded member at an inner side of a rear casing of the retardation compartment, and the rear casing of the retardation compartment is coupled to the retardation compartment for the positioning thereof such that when a motor secured to the motor axle rotates, the motor axle brings the clutch base and the second engraved trunk and the first engraved trunk into rotation, and the brake plate of the first engraved trunk detaches from the frictional surface of the retardation compartment, which stops the braking effect and in turn starts the rotation of the wire cable reel by the indirect transmission of the motor; and when the motive force is stopped, the load of the heavy substance suspended on a wire cable thereof produces a reverse pulling force, such that the first engraved trunk produces a reverse pushing force to push the brake plate of the first engraved trunk to press against the frictional surface of the retardation compartment, and produce a prompt braking effect.
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