CN2245031Y

CN2245031Y - New structure of cable brake outside casinghead

Info

Publication number: CN2245031Y
Application number: CN 95225294
Authority: CN
Inventors: 林盟棠
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-13
Filing date: 1995-11-13
Publication date: 1997-01-15
Anticipated expiration: 2005-11-13

Abstract

The utility model relates to a new structure of a casing head of a braking wire outer casing. The utility model is arranged on a general brake crank for connecting a braking wire outer casing and the brake crank. The casing head of the braking wire outer casing is a scalariform hollow pipe body, one end of the scalariform hollow pipe body is extended with a thin pipe to the outer end of a perforated seat which is arranged in a fixing bracket of the brake crank. Because of the penetration of a plastic casing head thin pipe, the braking wire can be prevented from folding to break when the brake is operated, and the external rain can be properly prevented from penetrating. Therefore, unsafe running caused by braking distortion because of rusting braking wire can be avoided.

Description

The pullover new structure of brake cable outer tube

The utility model relates to a kind of brake cable outer tube cover header structure.

Whole brake cable and sleeve pipe in the general common bicycle brake, mutual insert group structure design between the handle fixed mount, mainly as shown in Figure 4, brake crank 5 is loaded on the fixed mount 20, on the fixed mount 20 then screw lock the directed perforated seat 24 of one hard is arranged, whole sleeve pipe plug 23 1 ends connect the outer tube 21 of brake cable 22, one end can be placed through the recessed positioned internal of perforated seat 24 external side ends, the other end of perforated seat 24 then extends the inside of people to fixed mount 20, brake cable 22 is under by outer tube 21 positioning and guidings, behind the perforated seat of stretching in passing 24, just interconnect with brake crank 25, for can be by the controlling of brake crank 25, to reach the operation control of brake by putting.

The connection mode that above-mentioned existing brake cable 22 and brake crank are 25, can from Fig. 4, obviously find out, when brake operation, when brake crank 25 inside grippings fold, then whole piece brake cable 22 also will be done the beat displacement of relative angle along the direction of its gripping, and in the displacement beat, will be because of rigid perforated seat 24 inner extensions, make brake cable 22 under brake tension operation, just can make soft brake cable form the deflection angle of meaning as shown in Figure 4, therefore brake cable 22 forms the state of a knuckle, in the course of time under the use, will make the steel wire of brake cable 22 will be rubbed and scrape the situation of damage so repeatedly, so that form the fracture of line body, so after often betiding use a period of time, the severe wear that brake cable 22 possibilities have because of the line body, and when moment overexerts, then just cause the fracture of brake cable 22, when at high speed traveling, then just may produce great danger; And because whole perforated

seat

24 and 25 of brake cranks still leave one section no small clearance space; add that perforated seat 24 apertures are very big; main supplier just wears group brake cable 22; so when rainy or carwash, make the suitable person who lives in exile of water of rainwater or carwash arrive the inside of this hole seat through regular meeting, so that arrive the inside of outer tube 21; time one, long interior dress brake cable 22 can be got rusty; then the operation resistance of brake strengthens, and then the consumption power of not only braking, more and the precision maneuver will have influence on the actual brake operation time.

The purpose of this utility model is at the deficiency of prior art and provide a kind of later-model brake cable outer tube pullover new structure, it is pullover to be stepped, and an end extends the outer end of tubule perforated seat to the fixed mount, make brake cable can obtain preferable beat elasticity, rub and can not produce turnover with the ora terminalis of perforated seat, whole brake cable easily assembled, safe in utilization easy to maintenance.

The purpose of this utility model is achieved in that the pullover new structure of a kind of brake cable outer tube, brake crank and a side that it includes a brake fixed mount and is assembled in its top are connected the members such as perforated seat of locating for brake cable outer tube insert group, it is characterized in that: the pullover of described outer tube sleeve pipe end is the ladder tubulose, and the pullover end of this outer tube extends a tubule, this tubule may extend into the external side end of insert group perforated seat, and described brake cable is passed this tubule.

Because the tubule that the stair-stepping pullover end of the utility model extends, it can make the wear group of whole brake cable in perforated seat locate more certain, during brake operation, it is more direct accurate to move, the clearance elastic space of beat is less, can guarantee the operation sensitivity of brake crank, more and because the tubule made of whole plastic material extends beyond the assembled length of perforated seat, knuckle in the time of can making the perforated seat limit end of brake cable and hard can not form stay bolt, improve the dangerous situation about existing of use of the frayed fracture of whole brake cable possibility significantly, and because the assembly clearance of whole tubule and brake cable is minimum, so can further prevent because rain or the person who lives in exile of rainwater etc. during carwash, guarantee that the whole piece brake cable more can not produce immersion and get rusty and the situation of inconvenient brake operation, the utility model not only makes things convenient for the group of wearing of brake cable to locate, the security maintenance that brake cable is used can be further guaranteed in assembling.

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiments.

Fig. 1 is a pullover package assembly decomposing schematic representation of the present utility model;

Fig. 2 is a pullover combination scheme drawing of the present utility model;

Fig. 3 is assembling of the present utility model plane and running condition scheme drawing;

Fig. 4 is the brake cable assembling plane and the running condition scheme drawing of prior art.

The figure number part:

10,22 brake cable, 11,21 outer tubes

12,24 perforated

seats

13,23 are pullover

14 tubules, 15,25 brake cranks

20 fixed mounts

The pullover new structure of brake cable outer tube of the present utility model, referring to Fig. 1,2,3, in the package assembly of whole piece brake cable 10, the end of the outer tube 11 of brake cable 10 and perforated seat 12 mutual insert groups wherein, cooperate suit one to be pullover 13 of ladder tubulose at pipe end with what plastic material was made, pullover 13 with outer tube 11 insert groups after cooperate roll extrusion location, pullover 13 the other end then extends outward a tubule 14, tubule 14 insert groups that extend are to perforated seat 12 inside and stretch out, and because the pipe ring of tubule 14 footpath is smaller than the aperture of perforated seat 12, tubule 14 can be done arbitrarily in the perforation caliber of perforated seat 12, and beat rotates, and brake cable 10 is via outer tube 11, pass perforated seat 12 after pullover 13 guidings, tubule 14 by pullover 13 tops stretches out connection brake crank 15, and can not touch the peritreme of perforated seat 12, avoided the wearing and tearing of brake cable 10 with perforated seat 12 edges.Tubule 14 is minimum with the assembly clearance of brake cable 10, and can prevent from person who lives in exile such as rainwater to guarantee that brake cable 10 is difficult for getting rusty, and is light flexibly during operation, and safe in utilization.

Claims

1, the pullover new structure of a kind of brake cable outer tube, brake crank and a side that it includes a brake fixed mount and is assembled in its top are connected the members such as perforated seat of locating for brake cable outer tube insert group, it is characterized in that: the pullover of described outer tube sleeve pipe end is the ladder tubulose, and the pullover end of this outer tube extends a tubule, this tubule may extend into the external side end of insert group perforated seat, and described brake cable is passed this tubule.