CN2176962Y

CN2176962Y - Interlocking bicycle brake device

Info

Publication number: CN2176962Y
Application number: CN 93237482
Authority: CN
Inventors: 薛养和
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-19
Filing date: 1993-08-19
Publication date: 1994-09-14
Anticipated expiration: 2003-08-19

Abstract

The utility model relates to an interlocking bicycle brake device. A U-shaped supporting seat is fixed at the front of a frame, and both sides of the supporting seat are symmetrically provided with guide groove holes in top and bottom direction. The guide groove holes are respectively provided with a pin axle and the outer ends of both sides of the pin axle are sheathed with a U-shaped draw arm and two identical pulley wheels. The pulley wheels are connected with a swing arm with a brake block hinged with the brake frame of a front and a back forks through a brake steel cable, the bottom of the brake frame and the middle part of the swing arm are provided with a tension spring. Two sliding steel wires are arranged on the upper part of the U-shaped draw arm, and the other end of each of sliding steel wires is fixedly connected with brake handles respectively. A brake handle is operated and the pulley wheels are lifted, and two brake steel cables can be driven by the brake handle and the pulley wheels, so that the brake can be realized by the brake of the front wheel and the back wheel simultaneously.

Description

Interlocking bicycle brake device

The coordinated type bicycle brake device is a kind of brake gear that can brake front and rear wheel simultaneously by a brake handgrip.

Present bicycle brake device no matter be common brake gear, or bag lock brake gear, all is with right handgrip control brake shoes braking front-wheel, and left hand is braking rear-wheel.And in actual riding, often be difficult to guarantee that two hands brake simultaneously, and singlehanded brake control power is little, particularly in slippery when wet, sloping sharp bend urgency in emergency circumstances, cyclist's first sometimes front-wheel of by mistake stopping among being everlasting in a great rush just might cause the accident of bleeding.

The purpose of this utility model is to provide a kind of to need a brake of operation handgrip, the just bicycle brake device that front and back wheel is braked simultaneously.

The purpose of this utility model is to solve by following technical scheme: this interlock bicycle brake device, be to be fixed with a U-shaped bearing 1 at the vehicle frame front end, have the guiding groove hole 2 of trend up and down on these bearing two sides symmetrically, wherein both sides are equipped with bearing pin 3 respectively symmetrically.1 liang of outside of U-shaped bearing, just on the over-hang part of each bearing pin 3, be set with U-shaped torque arm 4, near this torque arm on bearing pin 3 ends, also be set with two identical pulleys 5 symmetrically, be wound with steel cable 6 on it respectively, these steel rope 6 front and back ends respectively with the brake frame 7 on bicycle front and rear fork both sides on pivotally attached swing arm 8 be fixedly linked, the front end of swing arm 8 is provided with brake shoes 9, is linked with extension spring 10 between swing arm 8 middle parts and brake frame 7 lower ends.Be equipped with two in the middle of U-shaped torque arm 4 tops and lift steel wire 11, each other end that lifts steel wire is captiveed joint with a brake handgrip respectively.As long as handle arbitrary brake handgrip 12, just can make two pulleys 5 drive steel rope 6 and rise, thereby swing arm 8 swings of the brake frame 7 of traction front and rear fork are braked wheel along guiding groove hole 2.

The utility model is compared the beneficial effect that is had with background technology:

1, this brake gear only need be operated a brake handgrip and just can make front and back wheel drag simultaneously, has avoided owing to wheel brake before the mistake braking earlier causes personal casualty accident.

2, this brake gear is simple to operate, and is safe and reliable, and braking force is strong, is a kind of invention to bicycle brake device, has promotional value.

Below by accompanying drawing specific embodiments of the present utility model is done elaborating further.

Fig. 1, this brake gear are arranged on the scheme drawing on the cycle frame;

The assembling scheme drawing of Fig. 2, U-shaped bearing and its part of adorning;

Fig. 3, bicycle upper beam front end are provided with the scheme drawing of U-shaped bearing.

See figures.1.and.2, this coordinated type bicycle brake device, be to fix a U-shaped bearing 1 at the vehicle frame front end, have the guiding groove hole 2 of trend up and down on these U-shaped bearing 1 two sides symmetrically, one bearing pin 3 all is housed in every side guidance hole, each bearing pin is overhanging in U-shaped bearing both sides guiding groove hole 2, successively is set with U-shaped torque arm 4 and two identical pulleys 5 symmetrically at the both ends of overhanging bearing pin 3, and pins with bayonet lock in each bearing pin 3 two ends.(see figure 3) when just U-shaped bearing 1 is contained in the upper beam front end, steel rope 6 is from putting the beams in place by also need to be provided with in addition a guide wheel on this bearing.Then two steel ropes 6 are walked around on two pulley 5 tops of symmetry respectively, pivotally attached swing arm 8 middle parts fix respectively on the two ends of steel rope 6 and the front and rear fork both sides brake frame 7, swing arm 8 front ends are equipped with brake shoes 9, are linked with extension spring 10 between swing arm 8 middle parts and brake frame 7 lower ends.In addition, be equipped with two in the middle of U-shaped torque arm 4 tops and lift steel wire 11, each other end that lifts steel wire is captiveed joint with a brake handgrip respectively.

When utilizing coordinated type bicycle brake device recited above to brake, only need a brake of operation handgrip 12, lifting steel wire 11 just rises along guiding groove hole 2 by two pulleys 5 that U-shaped torque arm 4 drives respectively on the bearing pin 3, just drive steel rope 6 two ends and move, thereby braking brake is carried out in pivotally attached swing arm 8 on the frame 7 that brakes before and after the pulling to the position that pulley 5 rises.

Claims

1, the coordinated type bicycle brake device, it is characterized in that this device is by be fixed with a U-shaped bearing (1) at the vehicle frame front end, have the guiding groove hole (2) of trend up and down on these bearing two sides symmetrically, wherein both sides are equipped with bearing pin (3) respectively symmetrically, U-shaped bearing (1) two outside just is set with U-shaped torque arm (4) on each bearing pin 3 over-hang part, near this torque arm, also be set with two identical pulleys (5) symmetrically, be wound with steel cable (6) on it respectively, this steel rope (6) front and back end is gone up pivotally attached swing arm (8) middle part with the brake frame (7) on front and rear fork both sides respectively again and is fixedly linked, one end of swing arm (8) is provided with brake shoes (9), and swing arm (8) middle part and brake frame (7) lower end are linked with extension spring (10); Be equipped with two and lift steel wire (11) in the middle of U-shaped torque arm (4) top, each lifts the steel wire other end and is fixedly linked with a brake handgrip (12) respectively.