Patent Application
20080035436
The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function, and arrangement, of the elements described without departing from the scope of the invention as set forth in the appended claims.
Referring to
The hand-brake structure mainly comprises a securing seat 10, a pulling shaft seat 20, a stopping block 27, a pulling shah 40, a positioning toothed block 30, a resilient member 44, an interlinking block 54, a press button 50, a spring 52 and a shaft housing 53.
The securing seat 10 has a side edge provided with a circular arch 11 having a plurality of teeth 12.
The pulling shaft seat 20 includes a shaft 21 pivotally mounted to the securing seat 10 and has a guiding slot 22 at one side. The guiding slot 22 is surrounded by a hand-brake cable 23 having one end fixed to the end section of the guiding slot 22, and the other end of the brake cable 23 connected to a braking device. The pulling shaft seat 20 has a sliding slot 24 and one end of the pulling shaft seat 20 is provided with an end seat section 25. A securing plate 26 is mounted within the polling shaft seat 20.
The stopping block 27 is fixedly mounted on the pulling shaft seat 20 by pins 28 for bearing against the securing seat 10 thereby limiting the swinging angle of the pulling shaft seat 20.
The pulling shaft 30 is provided at one end with a pivotal section 31 which is pivotally connected with an end portion 25 of the pulling shaft seat by a pivotal shaft 32. The pivotal section 31 has a pushing section 33 at the rear end which is formed with a slot 34 above the pushing section 33. The pulling shaft 30 has a hole 35 having an end in alignment with the sliding slot 24 of the polling shaft seat 20. The other end of the hole 35 extends through the pulling shaft 30 to form an opening 36. The wall of the hole 35 is provided with two scarring plates 37 and two positioning ribs 38.
The central portion of the positioning toothed block 40 is pivotally connected with the pulling shaft seat 20 by a pivotal shaft 41. The positioning toothed block 40 is provided at an end with a tooth 42 engageable with rise teeth 12 of the securing seat 10. The other end of the positioning toothed, block 40 has an interlinking section 43 extending into the opening 34 above the pushing section 33.
The resilient member 44 is mounted on the securing plate 26 of the pulling shall seat 20 and has an end bearing against the interlinking section 43 of the positioning toothed block 40 thereby forcing the tooth 42 of the positioning toothed block 40 to engage with the teeth 12 of the securing seat 10.
The interlinking block 45 is fitted in the sliding slot 24 and the hole 35 between pulling shaft seat 20 and the pulling shaft 30 and can slide an appropriate distance along the sliding slot 24 and the hole 35. The interlinking block 45 has an end provided with a cutting slot 46 in winch is fitted a pivotal shaft 47.
The pulling block 50 is has an end protruded out of the opening 36 of the pulling shaft 30 and the other end connected with a linking rod 51 which extends into the hole 35 and connected with the pivotal shaft 47 of the interlinking block 45.
The spring 52 is mounted on tire linking rod 51 of the polling block 50, and has an end urging against an end of the pulling block 50, and the other end fastened to the securing plate 37 mounted at the wail of the hole 35.
The shaft housing 53 is mounted on the pulling shaft seat 20 and the pulling shaft 30 to make it easier to be held by the user.
Referring to
Referring to
It will be understood that each of the elements described, above, or two or 20 more together may also find a useful application in other types of methods differing from the type described above.
The hand brake structure according to the present invention utilizes a pulling shaft 30 to rotate with respect to an end of the pulling shaft seat 20 so as to make the pushing section 33 of the pulling shaft 30 to move the positioning toothed block 40 thereby disengaging the tooth 42 from the tooth 12. Hence, the hand brake according to the present invention can be easily operated, as desired and requires less labor power than the conventional.
While certain novel features of this invention, have been shown and described and are pointed, out ha the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in tire structure and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing hi any way from the spirit of the present invention.
