CN105683010A

CN105683010A - Brake device

Info

Publication number: CN105683010A
Application number: CN201480059759.5A
Authority: CN
Inventors: 武藤和彦
Original assignee: Bosch Corp
Current assignee: Bosch Corp
Priority date: 2013-10-30
Filing date: 2014-10-20
Publication date: 2016-06-15
Anticipated expiration: 2034-10-20
Also published as: TW201522158A; BR102014026807A2; JP6180540B2; WO2015064404A1; JPWO2015064404A1; TWI617486B; CN105683010B

Abstract

The present invention achieves an ABS that has a simple configuration and that does not use brake fluid pressure. This mechanical ABS (100) is provided with: a drive source that drives a rotating shaft (172) to rotate; a cam member (150) that is affixed to the rotating shaft (172); a first ring member (120) that is oscillatably journaled to the rotating shaft (172) and that oscillates around the rotating shaft (172) in lockstep with a brake operation to a vehicle; and a second ring member (130) that is joined to the first ring member (120) and that controls the braking force to the vehicle by means of oscillating in lockstep with the oscillation of the first ring member (120). The second ring member (130) has an abutting section (136) that abuts the cam member (150), and in the state of the brake operation to the vehicle being performed, the brake force to the vehicle is varied by means of the oscillation in accordance with the rotation of the cam member (150).

Description

Brake unit

Technical field

The present invention relates to the invention of brake unit.

Background technology

In recent years, in the control for brake of vehicle, adopt ABS(anti-lock braking system). The system that ABS is discussed further below, if wheel is by locking, then this state of perception suppress the locking of wheel by weakening braking.

General ABS monitors the parameter that the speed of such as vehicle etc. represents the state of vehicle, goes out the wheel state by locking if based on the parameter detecting monitored, then by closing the pressure charging valve of braking hydraulic circuit and opening air relief valve and reduce brake fluid pressure. If it addition, ABS makes wheel from the recovering state by locking by reducing brake fluid pressure, then by closing air relief valve and opening pressure charging valve, improving brake fluid pressure. ABS plays stop (pumpingbrake) identical effect with point by so improving, reduce brake fluid pressure, thus suppressing the generation of the skidding due to wheel lock up.

It addition, as the prior art similar with this ABS, it is commonly known that brake unit as described below, this brake unit possesses: be crimped on the pulley of the brake line of bicycle, supporting pulley arm, be locked to the cam of the other end of arm. This brake unit makes arm and pulley move back and forth relative to brake line by making cam rotate, and thus carrys out the tension force of increase-decrease plan moving-wire, as a result of which it is, form the device of skidding when preventing bicycle brake hard.

Patent documentation 1: Japanese Unexamined Patent Publication 6-255558 publication.

But, prior art does not just realize not using the ABS of brake fluid pressure and simple in construction to account for.

That is, in recent years, manufactured and in front and back wheel, have drum brake or in some of front and back wheel, have the vehicle (such as the two wheeler etc. of little capacity) of drum brake. In order to import the general ABS using brake fluid pressure for such vehicle, it is necessary to be all changed to the brake unit using brake fluid pressure in front and back wheel, be therefore unpractical.

On the other hand, there is also the prior art of the aforementioned structure not using like that brake fluid pressure, but the technology that the prior art is discussed further below: make the pulley being crimped on brake line by the rotary reciprocating motion of cam, and thus carry out the tension force of increase-decrease plan moving-wire. Therefore, the increase and decrease of the tension force of brake line passes to driver as former state, there is the situation affecting brake feel.On the other hand, in order to reduce the impact of brake feel in the prior art, there is the possibility making the structure of ABS complicate.

Summary of the invention

Therefore, it is an object of the invention to, it is achieved do not use the ABS of brake fluid pressure and simple in construction.

One technical scheme of the brake unit of the present invention is made in view of object defined above, therefore it is characterized in that, have: drive source, cam part, first connecting rod parts, second connecting rod parts, aforementioned drive source rotates and drives rotating shaft, aforementioned cam parts are fixed on aforementioned rotating shaft, aforementioned first connecting rod parts can swing the earth's axis and prop up in aforementioned rotating shaft, swing around aforementioned rotating shaft in linkage with the brake operating for vehicle, aforementioned second connecting rod parts are linked to aforementioned first connecting rod parts, by swinging in linkage with the swing of aforementioned first connecting rod parts, control the brake force for aforementioned vehicle, aforementioned second connecting rod parts have the abutting part abutted with aforementioned cam parts, when having carried out the brake operating for aforementioned vehicle, the brake force for aforementioned vehicle is changed by correspondingly swinging with the rotation of aforementioned cam parts.

Additionally, it is connected to aforementioned first connecting rod parts the first component with the action in linkage of the brake operating for aforementioned vehicle possessing further, be connected to aforementioned second connecting rod parts and during for controlling for the second component of the brake force of aforementioned vehicle under, can be designed to, aforementioned first connecting rod parts have the first connecting portion, first extension, first linking part, aforementioned second connecting rod portion has the second linking part, second extension, second connecting portion, aforementioned first connecting portion connects aforementioned first component, aforementioned first extension is extended by this first connecting portion and can swing the earth's axis and prop up in aforementioned rotating shaft, aforementioned first linking part extends across the part of rotating shaft at this first extension from aforementioned first connecting portion, connection shaft is set, aforementioned second linking part is connected with aforementioned first linking part via aforementioned connection shaft, aforementioned second extension is extended by this second linking part and has aforementioned abutting part, aforementioned second connecting portion extends across the part of aforementioned abutting part at this second extension from aforementioned second linking part, connect aforementioned second component.

Additionally, aforementioned first component can be set to the brake operating of line or bar move back and forth in linkage with to(for) aforementioned vehicle, aforementioned second component is set to line as described below or bar, it is connected to aforementioned second connecting rod parts and is connected to the drum brake of aforementioned vehicle, and the swing with aforementioned second connecting rod parts moves back and forth in linkage.

Additionally, can be designed to, aforementioned second component is exerted a force to aforementioned drum brake side, rotation with aforementioned cam parts is correspondingly, distance from aforementioned rotating shaft to aforementioned abutting part changes, thus aforementioned second connecting rod parts swing around aforementioned connection shaft, and change the power of the brake force for aforementioned vehicle by this swing.

Furthermore it is possible to aforementioned cam parts are set to eccentric cam.

Furthermore it is also possible to possess ABS control portion, this ABS control portion if be detected that the wheel of aforementioned vehicle is by the state of locking, then makes aforementioned cam parts rotate via aforementioned drive source, thus changes the power of the brake force for aforementioned vehicle.

According to such present invention, it is possible to realize not using the ABS of brake fluid pressure and simple in construction.

Accompanying drawing explanation

Fig. 1 indicates that the figure of the structure of the brakes of the mechanical type ABS including present embodiment.

Fig. 2 is the axonometric chart of mechanical type ABS.

Fig. 3 A is the front view of the mechanical type ABS under the state not being braked operation.

The front view of the mechanical type ABS under the state that Fig. 3 B has been by brake operating.

Fig. 3 C be by brake operating and reduce brake force by the rotation of cam part state under the front view of mechanical type ABS.

Detailed description of the invention

Below, with reference to accompanying drawing, the embodiment with regard to the brake unit of the present invention illustrates. Fig. 1 indicates that the figure of the structure of the brakes of the mechanical type ABS including present embodiment. Additionally, in the present embodiment, two wheeler is enumerated as an example of vehicle, and the brake unit in two wheeler is illustrated, but the invention is not restricted to this.

As it is shown in figure 1, brakes 500 possesses mechanical type ABS100 and ABSECU(electronic control unit) 200, aforementioned mechanical formula ABS100 is for controlling the brake force relative to vehicle, and aforementioned ABSECU200 is used for controlling mechanical type ABS. Additionally, brakes 500 possesses drum brake 300 and brake bar 400, aforementioned drum brake 300 is connected with mechanical type ABS100 by the second brake line (second component) 104, and aforementioned brake bar 400 is connected with mechanical type ABS100 by the first brake line (first component) 102.

Brake bar 400 is the bar that the driver for vehicle is braked operation. Drum brake 300 is the brake unit for applying brake force for the wheel of vehicle. First brake line 102 moves back and forth in linkage with the brake operating for brake bar 400. Second brake line 104 is exerted a force towards drum brake 300 side, and when ABS does not have action usual, the reciprocating motion of the second brake line 104 and the first brake line 102 moves back and forth in linkage. Wheel is applied brake force by the reciprocating motion of drum brake 300 and the second brake line 104 in linkage. Additionally, brake unit is not limited to drum brake 300.

It follows that the details of mechanical type ABS100 is illustrated. Fig. 2 is the axonometric chart of mechanical type ABS. Fig. 3 A is the front view of the mechanical type ABS under the state not being braked operation. The front view of the mechanical type ABS under the state that Fig. 3 B has been by brake operating. Fig. 3 C be by brake operating and make brake force weaken by the rotation of cam part state under the front view of mechanical type ABS.

As shown in Figure 2, mechanical type ABS100 possesses casing 110 and motor (drive source) 170, first connecting rod parts 120 and second connecting rod parts 130 etc. are accommodated in inside by aforementioned casing 110, and aforementioned motors 170 is arranged on the outer surface of casing 110 via planetary gear 160. Motor 170 rotates via planetary gear 160 and drives rotating shaft not shown in Fig. 2. On casing 110, it is formed with the hole 112 inserting the first brake line 102 and inserts the not shown hole of the second brake line 104.

It addition, mechanical type ABS100 possesses rotating shaft 172 and cam part (eccentric cam) 150, aforementioned rotating shaft 172 is rotated driving by motor 170, and aforementioned cam parts 150 are fixed on rotating shaft 172. It addition, mechanical type ABS100 possesses first connecting rod parts 120, these first connecting rod parts 120 can swing the earth's axis and prop up in rotating shaft 172, swing around rotating shaft 172 in linkage with the brake operating for vehicle. It addition, mechanical type ABS100 possesses second connecting rod parts 130, these second connecting rod parts 130 are linked to first connecting rod parts 120, control the brake force for vehicle by carrying out in linkage swinging with the swing of first connecting rod parts 120.Additionally, cam part 150 is not limited to eccentric cam.

Additionally, as shown in Figure 3, mechanical type ABS100 possesses the first brake line 102 and the second brake line 104, aforementioned first brake line 102 is connected to first connecting rod parts 120, move back and forth in linkage with the brake operating for brake bar 400, aforementioned second brake line 104 is connected to second connecting rod parts 130, for controlling the brake force for vehicle.

Additionally, in the present embodiment, the first brake line 102 is enumerated as an example and illustrated, but as long as being the parts moved back and forth in linkage with the brake operating for vehicle, it is also possible to be not line, for instance can also be bar. It addition, in the present embodiment, the second brake line 104 is enumerated as an example and illustrated, but as long as being the parts that move back and forth in linkage of the swing with second connecting rod parts 130, it is also possible to be not line, for instance can also be bar.

First connecting rod parts 120 and second connecting rod parts 130 are described in detail. First connecting rod parts 120 have first connecting portion the 122, first extension the 124, first linking part 126, aforementioned first connecting portion 122 connects the first brake line 102, aforementioned first extension 124 is extended by the first connecting portion 122 and can swing the earth's axis and props up in rotating shaft 172, and aforementioned first linking part 126 arranges connection shaft 140 in extending across from the first connecting portion 122 of the first extension 124 part of rotating shaft 172.

Second connecting rod parts 130 have the second linking part 132 and the second extension 134, and aforementioned second linking part 132 links via connection shaft 140 and the first linking part 126, and aforementioned second extension 134 is extended by linking part 132. First connecting rod parts 120 and second connecting rod parts 130 are formed as mutually can rotating via connection shaft 140.

Here, the second extension 134 has the abutting part 136 abutted with cam part 150. It addition, second connecting rod parts 130 have the second connecting portion 138, this second connecting portion 138 connects the second brake line 104 in extending across from the second linking part 132 of the second extension 134 part of abutting part 136. Second connecting rod parts 130 have abutting part 136, it is possible to when having carried out the brake operating for vehicle, swing the power changing the brake force for vehicle by correspondingly carrying out with the rotation of cam part 150. Below this point is illustrated.

First, if from the state not being braked operation as shown in Figure 3A, operation brake bar 400 is thus by the first brake line 102 to brake bar 400 side tractive, then being formed and carried out the state of brake operating as shown in Figure 3 B. That is, if by the first brake line 102 to brake bar 400 side tractive, then first connecting rod parts 120 swing (rotation) widdershins around rotating shaft 172. With it concomitantly, connection shaft 140 also swings widdershins. On the other hand, second connecting rod parts 130 link by connection shaft 140 and first connecting rod parts 120, and abutting part 136 abuts with cam part 150, and therefore, the swing of second connecting rod parts 130 and connection shaft 140 swings in linkage widdershins. As a result of which it is, the second brake line 104 to mechanical type ABS100 side tractive, is thus applied brake force under the effect of second connecting rod parts 130 from drum brake 300 to wheel.

It addition, when having carried out brake operating as shown in Figure 3 B, ABSECU200 is if be detected that the wheel of vehicle is by the state of locking, then makes cam part 150 rotate via motor 170, thus changes the power of the brake force for vehicle.That is, if ABSECU200 is when having carried out brake operating as shown in Figure 3 B, the wheel state by locking of vehicle is detected, then rotate by motor 170 and drive rotating shaft 172. Thus, cam part 150 is around rotating shaft 172 eccentric rotary. Because the second brake line 104 is exerted a force towards drum brake 300 side, when such as cam part 150 have rotated about half cycle as shown in Figure 3 C, second connecting rod parts 130 deasil swing around connection shaft 140. As a result of which it is, the second brake line 104 returns towards drum brake 300 side, therefore slow down the brake force to wheel.

It addition, ABSECU200 is if be detected that the wheel of vehicle is by the state of locking, it is possible to rotate with the set cycle and drive rotating shaft 172. In this case, rotation with cam part 150 is correspondingly, distance from rotating shaft 172 to abutting part 136 changes, and thus second connecting rod parts 130 swing around connection shaft 140, and can change the power of the brake force for vehicle by this property hunting period. Additionally, ABSECU200 is possible not only to make cam part 150 rotate the power changing brake force towards one direction, it is also possible to the power changing brake force by making cam part 150 positive and reverse return transfer. Therefore, the direction of rotation by the ABSECU200 cam part 150 rotating driving is not limited to one direction.

As it has been described above, according to present embodiment, by using cam part and two linkage components, it is possible to realize not using the ABS of brake fluid pressure and simple in construction. It addition, according to present embodiment, it is possible to the ABS being difficult to affect brake feel is realized with simple structure. Additionally, in the present embodiment, mechanical type ABS100 and ABSECU200 is illustrated as split, but is not limited to this, it is also possible to ABSECU200 is carried to shape all-in-one-piece unit on mechanical type ABS100. Additionally, in the present embodiment, illustrate rotating shaft 172 upper shaft at fixing cam part 150 and prop up the example of first connecting rod parts 120, but be not limited to this, it is also possible to be respectively provided with the axle (rotating shaft) of cam part 150 and the axle (swinging axle) of first connecting rod parts 120.

Claims

1. a brake unit, it is characterized in that, have: drive source, cam part, first connecting rod parts, second connecting rod parts, aforementioned drive source rotates and drives rotating shaft, aforementioned cam parts are fixed on aforementioned rotating shaft, aforementioned first connecting rod parts can swing the earth's axis and prop up in aforementioned rotating shaft, swing around aforementioned rotating shaft in linkage with the brake operating for vehicle, aforementioned second connecting rod parts are linked to aforementioned first connecting rod parts, by swinging in linkage with the swing of aforementioned first connecting rod parts, control the brake force for aforementioned vehicle

Aforementioned second connecting rod parts have the abutting part abutted with aforementioned cam parts, when having carried out the brake operating for aforementioned vehicle, change the brake force for aforementioned vehicle by correspondingly swinging with the rotation of aforementioned cam parts.

2. brake unit as claimed in claim 1, it is characterized in that, it is also equipped with first component and second component, aforementioned first component is connected to aforementioned first connecting rod parts, with the action in linkage of the brake operating for aforementioned vehicle, aforementioned second component is connected to aforementioned second connecting rod parts, for controlling the brake force for aforementioned vehicle

Aforementioned first connecting rod parts have the first connecting portion, the first extension, the first linking part, aforementioned first connecting portion connects aforementioned first component, aforementioned first extension is extended by this first connecting portion and can swing the earth's axis and prop up in aforementioned rotating shaft, aforementioned first linking part arranges connection shaft in extending across from aforementioned first connecting portion of this first extension the part of rotating shaft

Aforementioned second connecting rod portion has the second linking part, the second extension, the second connecting portion, aforementioned second linking part links with aforementioned first linking part via aforementioned connection shaft, aforementioned second extension is extended by this second linking part and is had aforementioned abutting part, and aforementioned second connecting portion connects aforementioned second component in extending across from aforementioned second linking part of this second extension the part of aforementioned abutting part.

3. brake unit as claimed in claim 2, it is characterised in that aforementioned first component is the brake operating of line or bar move back and forth in linkage with to(for) aforementioned vehicle,

Line that aforementioned second component is discussed further below or bar, it is connected to aforementioned second connecting rod parts, and is connected to the drum brake of aforementioned vehicle, and the swing with aforementioned second connecting rod parts moves back and forth in linkage.

4. brake unit as claimed in claim 3, it is characterised in that

Aforementioned second component is exerted a force to aforementioned drum brake side,

Correspondingly, the distance from aforementioned rotating shaft to aforementioned abutting part changes in rotation with aforementioned cam parts, and thus aforementioned second connecting rod parts swing around aforementioned connection shaft, and change the power of the brake force for aforementioned vehicle by this swing.

5. brake unit as described in any one in Claims 1-4, it is characterised in that aforementioned cam parts are off cam.

6. the brake unit as described in any one in claim 1 to 5, it is characterized in that, it is also equipped with ABS control portion, this ABS control portion is if be detected that the wheel of aforementioned vehicle is by the state of locking, then make aforementioned cam parts rotate via aforementioned drive source, thus change the power of the brake force for aforementioned vehicle.