JPS5986724A - Braking method of disc brake device for bicycle application - Google Patents

Abstract

PURPOSE:To improve the braking efficiency by a method wherein braking is performed by directly pinching a brake disc between a movable pad and a fixed pad by pressing the surface to be braked against the fixed pad with the pressing movement of the movable pad toward the fixed pad during braking. CONSTITUTION:The titled brake device is provided on a bicycle, on which a disc brake 23 is fixed to a flange 21 formed by being protruded from an axle 11 by means of rivets 22 or the like and consists of a fixed pad 2 and a movable pad 3, both of which are opposingly arranged to each other on a brake body 1 so as to pinch the brake disc 23 therebetween. A pressing cam 8, which is shifted upwards through a brake arm 7 by being pulled with a brake wire W, is arranged at the back side of a movable pad 3. The movable pad 3 is rendered to be pressed toward a disc 23 side through a transmission rolling element 6 by means of the shifting of said cam 8 and yet returned in the direction for brake release by means of a return member 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for installing bicycle disc brakes: braking system in VC.

Brake braking method in a configuration in which a disc brake device installed on the bicycle body pushes the 5'J moving pad, which faces the identification pad via the brake disc, in the direction of the fixed pad, and pinches the brake disc with both pads. A conventional method is known as .

In other words, set the braked surface of the brake disc fixed to the axle at the center position between the fixed pad and the movable pad and apply the brakes! +11 Waiting position, when braking, the movable pad is pressed by the pressure mechanism to contact the brake disc, and the pressing force κ applied to the brake disc is further applied.
A method in which the braking surface of the brake disc is distorted in the direction of the fixed pad and pressed against the fixed pad, and the rotation of the brake disc is restrained by the frictional force between both pads;
Alternatively, the surface to be braked of the brake disc fixed to the axle is similarly set at the center position 16 between both pads, and when braking, the pressure mechanism suppresses the surface to be braked of the brake disc via the movable pad. As it slides, a reaction force equal to the pressing force is generated, and this reaction force is transferred to the brake body through the nJ III pad and the pressurizing mechanism (7), and the entire brake body moves in the lateral direction with respect to the brake disc. Since it is oscillated, the movement and oscillation causes the brake disc on the fixed pad side to vibrate to the +11 surface contact position, and at that contact position, both pads are crimped and the brake disc rotates. This is a method of restraining people.

However, with the above method, it is necessary to set the brake disc at the center position between both pads (pad action interval), which is the braked surface of the brake disc, no matter how much pressure is applied. When it comes to No. 1, the position with the brake disc must be carefully mastered.
Installation work becomes complicated.

This is because if the braked surface of the brake disc is in contact with the braking surface of one of the pads, friction will cause the pad to
This is because various problems such as 111 wear, frictional noise, and running resistance occur.

Furthermore, during one run on the axle to which the brake disc is fixed, slight rotational vibration (111-4) may occur, and this rotational vibration is amplified and transmitted to the braked surface of the brake disc, causing the braked surface to expand greatly between the pads. Since the pads move, it is necessary to set the pad action spacing wide enough so that the pads do not come into contact with the pad even during the tilting, which leads to a decrease in braking efficiency.

This invention has been newly created as a result of intensive research in consideration of the circumstances mentioned above, and its main purpose is to f.

A bicycle disc brake device (iq) that allows the movable pad to press the braked surface of the brake disc in a posture parallel to the pad and press it against a fixed pad without requiring any swinging of the brake body during rake braking. To provide a braking method.

Another object of the present invention is to provide a brake braking method for a disc brake device for a rotary vehicle, which allows a customer to determine the location and installation work of a brake body and a brake disc on a bicycle body.

Another object of the present invention is to provide a brake braking method for a bicycle disc brake device 1 in which the pad action amount tmv can be set narrowly and the brake braking efficiency and brake feeling can be further improved.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

The brake body of the brake device used in the brake braking method of the present invention includes an identification pad, a movable pad facing the fixed pad, and converts the traction force of the brake wire caused by the operation of the brake lever into a thrust force to restore the movable pad. Any configuration may be used as long as it has a pressurizing mechanism that presses Ml in the direction of the fixing pad.

Therefore, the pressure mechanism is, for example, a combination of a movable cam and a rotor, a combination of a 0J1# cam and a bottle, a 5 rotor, or an interposed 5'
The thrust generated by the combination of J-motion cam and sliding cam and other pressurizing cam mechanisms is transmitted to the pushing member.

The pushing member may be of any type, such as one configured to push a 6J movable button held by the pushing member, or one having a hydraulic configuration such as a hydraulically driven pushing piston.

/y,,, the brake derailleur in the brake device used in this invention is attached to the axle so that it rotates or stops integrally with the wheel, and at least the braked surface part intersects with the axle in an 11-axis direction. Any configuration that allows 61 motions may be used.

Therefore, an example will be given and explained in FIG. A connected configuration. Figure b shows a brake disc (braked surface portion 26) attached to a collar piece 21 that projects upward from the center shaft 11 via a connector 22 such as a rivet.
iJ ff1lJ connected, and the braked surface part 26
A connector insertion hole shaped to have play in the radial direction is opened, and the connector 22 is inserted between the collar piece 21, the braked surface part 26, and the washer 26, and the braked part is inserted between the collar piece 21 and the Waraku Y26. The surface part is connected by providing a gap for movement. The connector 22 has 50 rings 25.2 disposed on both sides of the braked surface.
5 Insert it. Therefore, the braked surface portion 26 can be rotated axially and moved somewhat by compressing one side of the O-ring 25. FIG. 0 shows a rocking body 28 made of a flexible member, an elastic member, and other rocking members on the base end side, and a brake disc with a braked surface portion 23 integrally supported on the rocking body 28 at the crotch. It is fixed to the axle 11 side and the braked surface part 23 is a medium cold part.
The braking surface portion 2 passes through the guide hole 29 to be braked within the range of the guide hole 29 based on the swinging of the swinging body 28.
3 is the one that swings.

The configuration of the brake disc is not shown in the illustrated example (of course, various settings d1 may be changed).

Therefore, in the bragie device shown in FIG.
ml) The pad 6, the pushing member 4 that pushes the rotary pad in the braking direction, the pushing part, etc.
l pad? A return member 5 that returns the direction toward the brake release direction, and a transmission rotor 6 that transmits thrust to the pushing member 4.
and a brake arm 7 which contacts the transmission rotor 6 in series and rotates by the pulling force of the brake wire W.
A pressure cam 8 is connected movably in the brake braking direction or brake release direction, and is connected to the brake arm 70 times to convert it into a thrust force and transmit it to the transmission rotor B, and the pressure cam 8 is connected to the back side of the pressure cam. It consists of an auxiliary rotor 9 held by an adjusting means 10 which is in contact with the brake and is fixedly movable at a desired position in the braking or releasing direction, and is screwed onto the frame of the bicycle body via a support piece.

On the other hand, the brake disc 20 is of the type shown in FIG. 2b above.

Therefore, the braked surface portion 25 of the player disc is
It has a structure that allows it to be tilted or moved 11J nJ in the axial direction relative to the main body.

The brake disc 20 configured as described above has a braked surface portion 23
is inserted between the brake body 10 and the pads 2 and 6.

A brake braking method in the disc brake device arranged in this manner will be explained based on FIG. 8.

In the braking samurai state, the brake surface portion 23 of the brake disc may be located at any position between the two pads, and may be in contact with one of the pads (see the diagram).

This is because the braked surface portion 23 rotates between both pads in conjunction with the 110 rotations of the axle during driving, but the braked surface portion 23 rotates in the axial direction of the axle 11. In the example, since it is tiltable or movable, even if each pad 2 or the groove comes into contact, no force is applied to the pad wall side, and the braked surface portion 23 rotates in a substantially parallel posture along the pad wall surface. As this continues, no frictional resistance occurs between the two, causing frictional noise.
This is because the vehicle can run easily without uneven wear or running resistance.

At the brake braking pressure, the brake arm 7 is rotated via the brake wire W by operating a brake lever (not shown). When the pressure cam 8 moves up due to this rotation of the brake arm 7, the rotor 9, which is fixed in the direction of the brake disk by the adjusting means 1D, rolls downward on the back surface of the pressure cam due to rolling contact. At the same time, the transmission rotor 6 climbs the cam surface (tapered wall surface) of the pressure cam, and the transmission rotor 6 moves up the cam surface (tapered wall surface) of the pressure cam, and the transmission rotor 6
I recommend Therefore, due to the pressurizing cam being busy, the transmission rotor 6 and the
is pushed toward the brake disc.

By this pushing of the iJ movement pad 3, the braked surface portion 23 of the brake disc moves in parallel toward the fixed pad (see halo in Figure b).

In addition, if the braking surface is in contact with the fixed pad, n
Of course, there is no need to move the braked surface part of the J-motion pad (see figures aT and a1).

In addition, no matter what posture the braked surface portion 23 is in within the pad action interval, due to the push by the movable pad 3, it is corrected to the braking posture in which it is parallel to the pad, and the fixed pad 2 remains as it is. It is pushed up to the wall (see b'tb').

Then, by further suppressing iiJ ntl + pad 3,
The controlled portion 611 of the brake disc 23 is pinched from both sides by the fixed pad and the rotary pad to brake its rotation and stop the rotation of the axle connected to it (see Figure 0).

Therefore, the brake body 1-7 can be smoothly moved in any position when the brake disc's brake surface 23 is waiting for the brake to be applied. It does not cause abnormal noise or uneven pad wear.

In addition, there is no need to limit the braking standby position of the brake disc's braked surface 26, so the pad action opening 1]
The distance can be set extremely narrow, and the braking effect and feel of the brake can be improved.

Note that the brake is released by the force v of the return member 5.
From c, the pushing member 4 and movable pad 3 are integrally moved away from the fixed pad 2 (see figure d).
.

In this case, it is sufficient to simply move the movable pad 3 out of service.
At f, the braked surface 25 of the brake disc is in contact with the identification pad 2, but the posture of the braked surface 23 is the braking standby posture. In this state, the rotating wheel runs again.

In this embodiment, the brake disc was configured to be able to tilt and move with respect to the axial direction of the axle, but 1
11 may also be used.

In addition, in the case of only tilting, it is preferable to set the brake disc at a distance of 1 m (1 m) so that it comes into contact with the fixed pad that is the braked surface of the brake disc.
It can be brought into contact by 1° in parallel to the 1st band, and the friction resistance can be increased by '+'It's.

In addition, regardless of whether or not the r peak of the tl IIj11 surface part is regular or not, the i'+t ``h s movement,
Any type of movement such as rocking may be used as long as it is 1° in the axial direction of the axle.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of a disc brake equipment used in the brake braking method according to the present invention, FIG. 2 is a sectional view showing each embodiment of the same player disc, and FIG.
The figure shows fixed pads, I5j moving pads, and platen f.
It is an explanatory diagram showing the relationship between the brake and the braked surface part, and 0 1 is the brake body, 2 is a fixed pad, 3 is a movable pad,
11 is a 1f axis, 20 is a brake disc, and 23 is a braked surface of the brake disc. try i'r out 11. Both people Furukawa Seisaku Co., Ltd. 191 Fig. 2 (a) (b) (a') (c″) (c) (d) O=

Claims (2)

[Claims] (1) A brake braking method for a bicycle disc brake device that performs braking by pushing a 6J moving pad facing a fixed pad toward the fixed pad via a brake disc X, in the axial direction of the axle. The braking standby position is when the brake surface of the movably mounted brake disc is in contact with the fixed pad or in contact with the fixed pad. A brake braking method for a bicycle disc brake device, characterized in that the braking surface portion is directly fixed by the pressing action of the pads, and braking is performed under pressure between both pads. (2) The brake disc is characterized in that the braked surface portion tilts, moves, or swings with respect to the axial direction of the axle.
fI￥F A brake braking method for a rotating wheel disc brake ++ +S according to claim 1.