DE112017001664B4 - CABLE ROUTING AND VEHICLE BRAKE - Google Patents

Abstract

A vehicle brake comprising a cable guide (85) accommodating and guiding a cable (82), the cable (82) being interposed between a braking element (3) and a driving mechanism (100) to rotate the braking element (3) using a power of the driving mechanism (100) to brake a wheel, the cable guide (85) comprising: a first cover (86) having a closed portion extending along the cable (82) while covering the cable (82) covered to slidably guide the cable (82) and having a first lubricant reservoir (86i) capable of containing a lubricant between the first cover (86) and the cable (82); anda second cover (87) having a closed portion, extending along the cable (82) while covering the cable (82), and having a second lubricant tank (87e) connected to the first lubricant tank (86i). and being able to contain the lubricant between the second cover (87) and the cable (82), the second cover (87) including a first bracket (87a) which attaches to the first cover (86) without leakage of the lubricant from the first lubricant container (86i) and the second lubricant container (87e), and a second bracket (87b) spaced from the first cover (86) and attached to the cable (82) without leakage of the lubricant from the second lubricant container (87e), the second cover (87) stretching and contracting along with movement of the cable (82) relative to the first cover (86); the brake member (3); the drive mechanism s (100); the cable (82); a support member (6) to which the drive mechanism (100) is attached; a drive mechanism mount (115) which attaches the drive mechanism (100) to the support member (6); and a cable guide bracket (90; 91) different from the drive mechanism bracket (115) and fixing the cable guide (85) to the support member (6), characterized in that the support member (6) is an anchor plate of the vehicle brake connectable to the body of the vehicle.

Description

TECHNICAL AREA

The present invention relates to a cable guide and a vehicle brake.

STATE OF THE ART

Vehicle brakes are known to have a motion conversion mechanism that converts rotation of a motor into linear motion of a cable to rotate the motor, pull the cable and move a brake shoe to apply a brake to a vehicle (see e.g B. those in the publications JP 2015 - 172 385 A and U.S. 2013/0 087 418 A1 revealed).

The pamphlet EP 0 376 180 A2 is considered to represent the closest prior art and discloses the features of the preambles of claims 1 and 2.

From the pamphlets DE 10 2012 201 579 A1 and U.S. 4,932,503A generic vehicle brakes are known.

SUMMARY OF THE INVENTION

PROBLEM TO BE SOLVED BY THE INVENTION

In such a vehicle brake z. B. the cable with a cable guide that guides the cable, which can cause the cable guide and the cable to wear out. Thus, it is the object of the present invention to provide a vehicle brake with a cable guide that z. B. Wear of the cable guide and the cable can be avoided.

The object of the invention is achieved by a vehicle brake according to claim 1 or claim 2. Advantageous configurations are the subject matter of the dependent claims.

MEANS TO SOLVE THE PROBLEM

According to the present invention, a cable guide receives and guides a cable. The cable is interposed between a braking element and a driving mechanism to pull the braking element using power of the driving mechanism to brake a wheel. The cable routing includes z. B. a first cover having a closed portion extending along the cable while covering the cable to guide the cable slidably, and having a first lubricant container capable of storing a lubricant between the first cover and take up the cable; and a second cover having a closed portion that extends along the cable while covering the cable and has a second lubricant reservoir connected to the first lubricant reservoir and capable of containing the lubricant between the second cover and the cable, the second cover including a first bracket fixed to the first cover without leakage of the lubricant from the first lubricant reservoir and the second lubricant tank, and a second bracket spaced from the first cover and attached to the cable without leakage of the lubricant from the second lubricant reservoir, the second cover stretching and contracting along with movement of the cable relative to the first cover. This can be due to the lubricant z. B. suppress that the cable guide and the cable wear out. This can also suppress the occurrence of rust and an abrasion powder in the cable guide and their introduction into the cable guide from the outside, whereby the driving mechanism can be easily stabilized in driving performance and improved in durability.

In the cable routing includes z. B. the first cover has two curved parts between opposite ends in an extending direction of the first cover. Compared with the first cover having only a curved part, e.g. B. a force applied to the part of the first cover that slides with the cable can be more distributed. This can improve the lifespan of the first cover and cable. The first cover can be made simpler than the one with three or more curved parts.

In the cable routing z. B. the first cover is made of a non-stretchable member, and the second cover is made of a stretchable member that is stretchable in an extending direction of the cable.

In the cable routing z. B. the drive mechanism is fixed to a support member, and the first cover is fixed at least at opposite ends of the support member in the extending direction.

In the cable routing includes z. B. the drive mechanism is a housing provided with a bore, and the first cover is fitted in the bore, and an annular sealing member is interposed between the first cover and the housing and fitted in the bore.

The cable guide also includes a bracket connected to the first cover and protruding outwardly from the first cover whereby the drive mechanism is fixed to the support member, and the bracket has a surface that contacts a surface of the support member and the first Cover extends diagonally with respect to the surface of the bracket.

According to the present invention, a vehicle brake comprises e.g. B. the cable routing; the braking element; the drive mechanism; the cable; a support member to which the drive mechanism is fixed; a drive mechanism mount that attaches the drive mechanism to the support member; and a bracket for the cable guide, different from the bracket for the drive mechanism, and fixes the cable guide to the support member. Thus, the cable guide does not have to be removed from the support member to remove the drive mechanism, thereby preventing e.g. B. a leak in the lubricant.

According to the present invention, a vehicle brake comprises e.g. B. the cable routing; the braking element; the drive mechanism; the cable; a support member to which the drive mechanism is fixed; and a common bracket that attaches the cable guide and the drive mechanism to the support member. Thus, the common support is shared by the cable guide and the drive mechanism, which z. B. leads to a simplification in the structure of the vehicle brake.

character list

• the 1 12 is an explanatory schematic rear view of a vehicle brake according to a first embodiment viewed from a rear of the vehicle;
• the 2 Fig. 12 is an explanatory schematic side view of the vehicle brake of the first embodiment viewed from outside in the vehicle width direction;
• the 3 Fig. 12 is an explanatory schematic side view of an operation of a brake member of the first embodiment, showing a non-braking state;
• the 4 Fig. 12 is an exemplary schematic side view of the operation of the braking member of the first embodiment, showing a braking state;
• the 5 Fig. 12 is a schematic sectional explanatory view of a driving mechanism of the first embodiment, showing a non-braking state;
• the 6 Fig. 12 is an exemplary schematic sectional view of the driving mechanism of the first embodiment, showing a braking state;
• the 7 a VII-VII sectional view of the 5 ;
• the 8th Fig. 12 is an exemplary schematic view of the driving mechanism and a cable guide of the first embodiment;
• the 9 Fig. 12 is an exemplary schematic view of the cable guide and a cable of the first embodiment;
• the 10 Fig. 12 is an exemplary schematic sectional view of part of the cable guide of the first embodiment;
• the 11 12 is an exemplary schematic view of a first cover of the cable guide of the first embodiment;
• the 12 Fig. 14 is another exemplary schematic view of the first cover of the cable guide of the first embodiment;
• the 13 12 is an exemplary schematic sectional view of a second cover of the cable guide of the first embodiment;
• the 14 12 is an exemplary schematic view of a support member and the first cover of the first embodiment;
• the 15 12 is an exemplary schematic view of a part of the vehicle brake of the first embodiment, and the part has a bracket between the support member and the first cover;
• the 16 Fig. 13 is a partial sectional view taken along a line XVI-XVI in Fig 14 ;
• the 17 12 is an exemplary schematic view of a cable guide and a cable according to a second embodiment of the present invention;
• the 18 Fig. 12 is an exemplary schematic sectional view of a driving mechanism of the second embodiment;
• the 19 12 is an exemplary schematic view of a bracket of a cable guide according to a third embodiment;
• the 20 12 is an exemplary schematic view of a first cover of a cable guide according to a fourth embodiment;
• the 21 12 is an exemplary schematic view of a support member and a cable guide of a vehicle brake according to a fifth embodiment;
• the 22 Fig. 12 is an exemplary schematic view of the cable routing of the fifth embodiment;
• the 23 Fig. 12 is an exemplary schematic view of the first cover of the cable guide of the fifth embodiment;
• the 24 Fig. 12 is an exemplary schematic view of a metallic member of the wire guide of the fifth embodiment;
• the 25 12 is an exemplary schematic view of part of a first cover of a cable guide according to a sixth embodiment; and
• the 26 12 is an exemplary schematic view of part of a first cover of a cable guide according to a seventh embodiment.

DESCRIPTION OF EMBODIMENTS

Exemplary embodiments of the present invention are disclosed below. Components of the embodiments given below and operations and results (effects) of the components are merely exemplary. The present invention can also be carried out with components other than those disclosed in the following embodiments. The present invention can obtain at least one of various effects (including draining effects) of the constituents.

The following example embodiments have components that perform the same or similar functions. The components that have the same or similar functions may be denoted by the same reference numerals, and an overlapping description thereof may be avoided. For the sake of simplicity referred to in the 1 until 4 an arrow X, the front in the vehicle front-rear direction; an arrow Y denotes outside in the vehicle width direction (axial direction); and an arrow Z denotes upward in the vertical direction of the vehicle.

Although the following will describe an example of applying a braking device 2, which is an example of a vehicle brake, to a left rear wheel (non-driving wheel), the present invention can be applied to the other wheels in a similar manner.

First embodiment

Structure of the braking device

Like in the 1 1, the braking device 2 is housed within a peripheral wall 1a of a cylindrical wheel 1. As shown in FIG. The braking device 2 is designed as a drum brake. In other words, how from the 2 As can be seen, the braking device 2 has arcuate brake shoes 3 both at the front and at the rear. The braking device 2 is connected by a cylindrical drum 4 (see 3 and 4 ) surround. The drum 4 rotates together with the wheel 1 about a rotation center C extending in the vehicle width direction (Y direction). The braking device 2 moves the two brake shoes 3 to contact an inner peripheral surface 4a of the cylindrical drum 4. As shown in FIG. At this time, friction occurs between the brake shoes 3 and the drum 4 to brake the drum 4 and the wheel 1 . The brake shoes 3 are an example of a braking element.

The brake device 2 has a hydraulically operated wheel cylinder 51 (see 2 ) and an electrically actuated motor 120 (see 5 ) as actuators that move the brake shoes 3. The wheel cylinder 51 and the motor 120 can both move the two brake shoes 3 . The wheel cylinder 51 is z. B. used for braking while driving, and the motor 120 is z. B. used for braking while parking. In other words, the braking device 2 is an example of an electric parking brake. Motor 120 can be used for braking while driving.

As in the 1 and 2 1, the brake apparatus 2 has a disk-like anchor plate 6. The anchor plate 6 is provided in a posture that intersects the widthwise direction of the vehicle. In other words, the anchor plate 6 extends substantially in a direction intersecting the vehicle width direction, specifically, in a direction (XZ plane) perpendicular to the vehicle width direction. Like in the 1 1, parts and components of the brake device 2 are placed both outside and inside the anchor plate 6 in the vehicle width direction. The anchor plate 6 directly or indirectly supports the parts and components of the braking device 2. In other words, the anchor plate 6 is an example of a support member. The anchor plate 6 is connected to a connector (not shown) to provide connection with a vehicle body. Examples of the connection element are a part of a suspension (such as an arm, a linkage or a mounting element). The anchor plate 6 is provided with openings 6b, like in the 2 shown used to provide a connection with the connector. The braking device 2 can also be used for a driving wheel. With the use of the driving wheel braking device 2, an axle (not shown) is inserted through an opening 6c in the anchor plate 6 formed in the 2 is shown. The anchor plate 6 is z. B. made of a metallic material.

For example, those in the 2 wheel cylinder 51 and brake shoes 3 shown are provided outside the anchor plate 6 in the vehicle width direction. The brake shoes 3 are movably supported by the anchor plate 6 . In the present embodiment, as shown in FIG 3 As can be seen, each of the brake shoes 3 is supported at a bottom end 3a by the anchor plate 6 so as to be rotatable about a center of rotation C1. The center of rotation C<b>1 is substantially parallel to the center of rotation C of the wheel 1 . The wheel cylinder 51 is supported by the top end of the anchor plate 6 . The wheel cylinder 51 has two moving parts (pistons, not shown) movable in the vehicle front-rear direction (horizontal direction in FIG 2 ) can protrude. The wheel cylinder 51 projects the two moving parts in response to an applied pressure. The two projecting moving parts push top ends 3b of the corresponding brake shoe 3. The projection of the two moving parts rotates the two brake shoes 3 about the respective pivot centers C1 and moves the top ends 3b away from each other in the vehicle front-rear direction. At this time, the two brake shoes 3 move radially outward from the center of rotation C of the wheel 1 . Each of the brake shoes 3 is provided on the outer periphery with a band-like liner 31 extending along a cylindrical surface. Consequently, by the radially outward movement of the two brake shoes 3 about the center of rotation C, the shrouds 31 come into contact with the inner peripheral surface 4a of the drum 4 (see Fig 4 ). Due to the friction between the liners 31 and the inner peripheral surface 4a, the drum 4 and the wheel 1 are braked. Like in the 2 1, the braking apparatus 2 has a return member 32. Due to releasing the brake shoes 3 from being pushed by the wheel cylinder 51, the return member 32 moves each of the two brake shoes 3 from a contact position (braking position Pb; see 4 ) to a non-touching position (non-braking position Pn, i.e. initial position; see 3 ) with respect to the inner peripheral surface 4a of the drum 4. The return member 32 is an elastic member such as e.g. B. a coil spring and applies a force to one of the brake shoes 3, so that it approaches the other of the brake shoes 3, namely, from the inner peripheral surface 4 a of the drum 4 moves away.

Structure and operation of the movement mechanism

The braking device 1 also has a movement mechanism 8 (see 3 and 4 ) that moves each of the two brake shoes 3 from the non-braking position Pn to the braking position Pb. The moving mechanism 8 is provided outside the anchor plate 6 in the vehicle width direction. As in the 2 until 4 As shown, the moving mechanism 8 has a lever 81 (not shown in Fig 2 shown), a cable 82 and a strut 83. The lever 81 is connected between one of the two brake shoes, e.g. B. a left brake shoe 3L in the 2 and the anchor plate 6 is arranged so as to overlap with the brake shoe 3L and the anchor plate 6 along the center of rotation C of the wheel 1 . The lever 81 is rotatably supported about a rotation center C2 by the brake shoe 3L. The center of rotation C2 is located at an end of the brake shoe 3L remote from the center of rotation C1, namely, at the top end in FIG 3 , and is substantially parallel to the center of rotation C and the center of rotation C1. The cable 82 is engaged with a bottom end 81a of the lever 81 farther from the pivotal center C2 via an engaging member 84 . The cable 82 moves the lower end 81a of the lever 81 closer to the other of the two brake shoes, e.g. B. a right brake shoe 3R in the 2 . The cable 82 moves substantially along the anchor plate 6. The stay 83 is inserted between the lever 81 and the brake shoe 3R different from the brake shoe 3L supporting the lever 81 and extends between the lever 81 and the brake shoe 3R. A connection position P1 between the lever 81 and the strut 83 is set between the rotation center C2 and a connection position P2 between the cable 82 and the lever 81 .

If the cable 82 in the 3 and 4 in such a moving mechanism 8 is pulled to the right, the lever 81 moves closer (arrow a) to the brake shoe 3R as shown in FIG 4 as shown, and presses the brake shoe 3R via the stay 83 (arrow b). At this time, the brake shoe 3R is rotated about the center of rotation C1 from the non-braking position Pn ( 3 ) (arrow c) to a touch position (brake position Pb in the 4 ) rotated with the inner peripheral surface 4a of the drum 4. In this state, the connection position P2 between the cable 82 and the lever 81 corresponds to the force point; the center of rotation C2 corresponds to the fulcrum; and the connection position P1 between the lever 81 and the stay 83 corresponds to the load point. In addition, while the brake shoe 3R is in contact with the inner peripheral surface 4a, when the lever 81 moves in the 3 and 4 moved to the right, namely in the direction (arrow a) in which the strut 83 pushes the brake shoe 3R, the strut 83 to rotate the brake shoe 3L counterclockwise (arrow d) around the connection position P1, with the strut 83 as fulcrum in the 3 and 4 serves. At this time, the brake shoe 3L is rotated about the center of rotation C1 from the non-braking position Pn ( 3 ) to the touching position (braking position Pb in the 4 ) rotated with the inner peripheral surface 4a of the drum 4.

Thus, the operation of the moving mechanism 8 moves the brake shoes 3L and 3R from the non-braking position Pn to the braking position Pd. Thereafter, the brake shoe 3R contacts the inner peripheral surface 4a of the drum 4, the connection position P1 between the lever 81 and the stay 83 serves as the fulcrum. The amount of movement of each of the brake shoes 3L and 3R is very small, e.g. B. equal to or less than 1 mm.

The cable 82 is interposed between the brake shoes 3 and a driving mechanism 100 and uses power from the driving mechanism 100 to pull the brake shoes 3 to brake the wheel 1 .

drive mechanism

The in the 1 , 2 , 5 and 6 The driving mechanism 100 shown moves the two brake shoes 3 via the moving mechanism 8 (see 3 and 4 ) from the non-braking position Pn to the braking position Pb. As in the 1 and 2 1, the drive mechanism 100 is disposed inside the anchor plate 6 in the widthwise direction of a vehicle, and is fixed to the anchor plate 6. As shown in FIG. That in the 2 until 5 The cable 82 shown leads through an opening 6d (see 5 ) in the anchor plate 6.

Like in the 5 As shown, the drive mechanism 100 has a housing 110, the motor 120, a reduction mechanism 130, and a motion converting mechanism 140.

The housing 110 supports the motor 120, the reduction mechanism 130, and the motion converting mechanism 140. The housing 110 may have a plurality of members. In this case, the elements can be connected to one another with joining means (not shown) such as e.g. B. screws can be integrated. The housing 110 is attached to the anchor plate 6 with fasteners such. B. screws (machine screws) attached. The housing 110 has a chamber R surrounded by a wall 111 . The motor 120, the reduction mechanism 130 and the motion converting mechanism 140 are accommodated in the chamber R and covered with the wall 111. FIG. The housing 110 may be referred to as a base, a support member, or a housing. The structure of the housing 110 is not limited to the one shown here as an example. The fastening means 115 are also called joining means. The fastener 115 is an example of a drive mechanism mount.

The motor 120 is an example of an actuator, and has a housing 121 and parts accommodated in the housing 121 . Examples of the included parts are a shaft 122, a stator, a rotor, a coil, and a magnet (not shown). The shaft 122 protrudes from the housing 121 in a direction T<b>1 along a first rotation center Ax<b>1 of the motor 120 . The direction T1 in the 5 is to the right. The motor 120 is driven by driving power based on a control signal and rotates the shaft 122. The shaft 122 may be referred to as an output shaft.

The reduction mechanism 130 has a plurality of gears rotatably supported by the case 110 . The gears have z. B. a first gear 131, a second gear 132 and a third gear 133. The reduction mechanism 130 can also be referred to as a rotation transmission mechanism.

The first gear 131 rotates together with the shaft 122 of the motor 120. The first gear 131 can be referred to as a drive gear.

The second gear 132 rotates around a second rotation center Ax2 parallel to the first rotation center Ax1. The second gear 132 has an input gear 132a and an output gear 132b. The input gear 132a meshes with the first gear 131. The number of teeth of the input gear 132a is greater than the number of teeth of the first gear 131. Namely, the second gear 132 is decelerated to a lower speed than the first gear 131. The output gear 132b is arranged opposite to the direction D1 with respect to the input gear 132a. The second gear 132 may be referred to as an idler gear.

The third gear 133 rotates around a third rotation center Ax3 parallel to the first rotation center Ax1. The third gear 133 meshes with the output gear 132b of the second gear 132. The number of teeth of the third gear 133 is greater than the number of teeth of the output gear 132b. Namely, the rotating speed of the third gear 133 increases one below that of the second gear 132 is reduced. The third gear 133 can be referred to as a driven gear. The structure of the reduction mechanism 130 is not limited to the one exemplified herein. The reduction mechanism 130 need not be a rotation transmission mechanism like the gear mechanism, but may be a rotation transmission mechanism using e.g. B. has a belt and pulleys.

The motion conversion mechanism 140 has a rotary member 141 and a linear motion member 142.

The rotating member 141 rotates around the third rotating center Ax3. The rotating center 141 has a small-diameter part 141a and a large-diameter part 141b having an outer diameter larger than that of the small-diameter part 141a. The small-diameter part 141a is a part of the rotary member 141 that faces opposite to the direction D1 and has a cylindrical shape. The large-diameter part 141b is a part of the rotating member 141 directed in the direction D1. The large-diameter part 141b has a bottom wall 141b1 and a side wall 141b2. The bottom wall 141b1 protrudes radially from the end of the small-diameter part 141a in the direction D1 and has an annular disk shape. The side wall 141b2 extends in the direction D1 from the edge of the bottom wall 141b1 and has a cylindrical shape. The side wall 141b2 may be referred to as a rim wall or a cylindrical wall. The large-diameter part 141b is provided with a recess 141b3 which is open in the direction D1.

The side wall 141b2 of the large-diameter part 141b is provided with the third gear 133 tooth. In other words, the rotary member 141 also serves as the third gear 133. The part provided with the teeth of the third gear 133 is an example of a driven part. A cylindrical part 112 of the housing 110 is received in the recess 141b3. In the recess 141b3, a thrust bearing 143 is placed between an opposite end 112a of the cylindrical part 112 relative to the direction D1 and the bottom wall 141b1. The thrust bearing 143 receives a load axially along the third rotation center Ax3. In the example of 5 For example, the thrust bearing 143 is a roller thrust bearing, but is not limited to this. The large-diameter part 141b and the rotating member 141 are rotatably supported by the housing 110 via the thrust bearing 143 .

The small-diameter part 141a is inserted into a radial bearing 144 received in a first bore 113a of the housing 110 . The first bore 113a has a substantially circular cross section. The first bore 113a extends axially along the third rotation center Ax3. The small-diameter part 140 a and the rotating center 141 are rotatably supported by the housing 110 via the radial bearing 144 . In the example of 5 For example, radial bearing 144 is a metal bushing, but is not limited thereto.

The rotating center 141 is provided with a through hole 141c having a circular cross section penetrating through the small-diameter part 141a and the bottom wall 141b1. The through hole 141c is provided with a female thread 145a.

The linear motion member 142 extends along the third rotation center Ax3 and penetrates through the rotary member 141. The linear motion member 142 has a rod 142a and a link 142b.

The rod 142a is inserted into the through hole 141c of the rotating member 141, the recess 141b3 in the large-diameter part 141b of the rotating member 141, and a second hole 113b of the cylindrical part 112 of the housing 110. The second bore 113b has a substantially circular cross section. The second bore 113b is arranged in the direction D1 relative to the first bore 113a and axially extends along the third rotation center Ax3. The rod 142a has a substantially circular cross section. The rod 142a is provided with a male thread 145b that meshes with the female thread 145a of the rotating member 141 .

The link 142b is connected to an end 82a of the cable 82 by a connector 146 . Like in the 7 As shown, connector 146 penetrates end 82a of cable 82 and connection 142b. The connecting element 146 is z. B. a pen.

Like in the 7 As shown, the second bore 113b of the cylindrical part 112 of the housing 110 is provided with grooves 113c on the inner surface. The grooves 113c extend along the third rotation center Ax3 in a substantially constant width and depth. The grooves 113c are provided at two locations across the third rotation center Ax3. The longitudinal ends of the connecting member 146 are fitted into the grooves 113c. The circumferential width of the grooves 113c around the third rotation center Ax3 is slightly wider than the width of the longitudinal ends of the connecting member 146 puts. Thus, the link member 146 abuts on the peripheral surfaces of the grooves 113c, thereby restricting the link member 146 and the linear motion member 142 from rotating about the third rotation center Ax3. Like in the 6 As shown, the connecting member 146 is movable into the recess 141b3. In other words, the connecting member 146 is located in the recess 141b3 while the linear motion member 142 is located at the braking position Pb. Faces 113d of the grooves 113c in the direction D1, which is in the 7 shown, restrict the link member from moving in direction D1. The surfaces 113d can be referred to as a stop or a position limiter. The structure for connecting the linear motion element 142 to the cable 82 is not limited to the example of FIG 7 limited.

In such a configuration, the rotation of the shaft 122 of the motor 120 is transmitted to the rotary member 141 via the reduction mechanism 130 to rotate the rotary member 141 . Then, the female thread 145a of the rotating member 141 meshes with the male thread 145b of the linear moving member 142, and the linear moving member 142 is restricted from rotating in the grooves 113c of the housing 110. As a result, the linear motion element 142 moves axially between the non-braking position Pn ( 5 ) and the braking position Pb ( 6 ) along the third center of rotation Ax3.

Of the cylindrical part 112 of the housing 110, the part provided with the grooves 113c is an example of a rotation restrictor that restricts the connecting member 146 and the linear motion member 142 from rotating about the third rotation center Ax3, and is also an example of a guide that the connecting member 146 and the linear moving member 142 to move axially along the third rotation center Ax3.

cable routing

As in the 2 and 8th is shown, the braking device 2 also has a cable guide 85 which receives the cable 82 and guides it.

Like in the 9 As shown, the cable guide 85 has a first cover 86 and a second cover 87 attached to the first cover 86. As shown in FIG. Like in the 10 As shown, the cable 82 is inserted into the first cover 86 and the second cover 87 . The first covering 86 is also referred to as a base member or non-stretchable member, and the second covering 86 is also referred to as a stretchable member or bladder. To put this another way, the first cover 86 is made of a non-stretchable member and does not stretch or contract, and the second cover 87 is made of a stretchable member and stretches and contracts in the direction of extension of the cable 82 together.

How from the 9 As can be seen, the first cover 86 extends along the cable 82 and covers the cable 82. In particular, as shown in FIGS 11 and 12 As shown, the first cover 86 has a cylindrical shape. In other words, the first cover 86 has a closed cross section. The first cover 86 has z. B. a metal pipe. The first cover 86 guides the cable 82 slidably. The first cover 86 is supported by the anchor plate 6 . The first cover 86 is made of a metallic material.

As in the 11 and 12 As shown, the first cover 86 has a proximal end 86a and a distal end 86b opposite the proximal end 86a. The proximal end 86a is inserted into the opening 6d of the anchor plate 6 and fixed to the anchor plate 6 (see FIG 5 ). The first cover 86 has three linear parts 86d1, 86d2 and 86d3 and two curved parts 86e1 and 86e2 between the proximal end 86a and the distal end 86b. The curved part 86e1 is arranged between the linear part 86d1 and the linear part 86d2, and the curved part 86e2 is arranged between the linear part 86d2 and the linear part 86d3.

Like in the 10 As shown, the first cover 86 is provided with a through bore 86c leading from the proximal end 86a to the distal end 86b. The cable 82 is inserted into the through hole 86c to move relative to the first cover 86. As shown in FIG. The first cover 86 has a first lubricant reservoir 86i accommodating a lubricant 88 between the first cover 86 and the cable 82 . The lubricant 88 is z. B. a lubricating grease. The first lubricant reservoir 86i is contained in the through hole 86c. The first cover 86 has a large-diameter part 86h1 at the distal end 86b and a small-diameter part 86h2 having a smaller outer diameter than the large-diameter part 86h1. The first cover 86 is set to have an inner diameter sufficient for the engaging member 84 of the cable 82 to pass therethrough. The proximal end 86a is also referred to as one end (end), and the distal end 86b is also referred to as the other end (end).

Like in the 9 1, the second cover 87 extends along the cable 82 and covers the cable 82. In particular, as shown in FIG 13 As shown, the second cover 87 has a cylindrical shape. In other words, the second cover 87 has a closed cross section. The second cover 87 has a proximal end 87a, a distal end 87b opposite to the proximal end 87a, and a bellows-like stretchable part 87c extending from the proximal end 87a to the distal end 87b. The second cover 87 is provided with a through hole 87d passing through the stretchable part 87c from the proximal end 87a to the distal end 87b. Like in the 10 As shown, the cable 82 is inserted into the through hole 87d. The second cover 87 has between the second cover 87 and the cable 82 a second lubricant tank 87e which stores the lubricant 88. As shown in FIG. The second lubricant tank 87e is connected to the first lubricant tank 86i. The second lubricant reservoir 87e is contained in the through hole 87d. The second cover 87 is made of z. B. made of an elastomer. The proximal end 87a is also referred to as one end (end), and the distal end 87b is also referred to as another end (end).

Like in the 10 As shown, the proximal end 87a is attached to the distal end 86b of the first cover 86 with no leakage (leakage limited) of the lubricant 88 from the first lubricant reservoir 86i and the second lubricant reservoir 87e (from the proximal end 87a and the distal end 86b). . In detail, the proximal end 87a has, in the inner circumference, a large-diameter part 87f1 that receives and engages the large-diameter part 86h1 of the first cover 86, and a small-diameter part 87f2 that receives part of the small-diameter part 86h2 . The large-diameter part 87f1 and the small-diameter part 87f2 are fixedly attached to the large-diameter part 86h1 and the small-diameter part 86h2 (linear part 86d3), and are sealed between the proximal end 87a and the distal end 86b. The inner periphery and the outer periphery of the proximal end 87a are provided with annular recesses 86a and 86a, respectively. The part with the recesses 86a and 861 of the proximal end 87a is thin-walled, and thus the proximal end 87a is easily elastically deformable. Consequently, if the proximal end 87a becomes caught on another element and e.g. B. is untwisted, the load causing the untwisting is prevented from being transmitted to the part closer to the distal end 87b than the recesses 86k and 86l. This results in maintaining the sealing function of the portion closer to the distal end 87b than the recesses 86a and 861 when the proximal end 87a is caught on another member.

The distal end 87b is spaced from the first cover 86 and is fixed to the cable 82 without leakage (leakage limited) of the lubricant 88 from the second lubricant container 87e (from the distal end 87b). In detail, the distal end 87b is pinched between a portion of the cable 82 located outside the first cover 86 and a support member 89 and moves together with the cable 82. The cable 82 has a core member 82c and a waterproof coating 82d, covering the outer periphery of the core member 82c. The waterproof coating 82d is made of e.g. B. a synthetic resin material such as. B. nylon or polybutylene terephthalate (PBT). The waterproof coating 82d lies between the distal end 87b and the core element 82c. The waterproof coating 82d may be provided only on a portion of the cable 82 provided with the support member 89 over the entire length of the cable 82, or on the portion of the cable 82 provided with the support member 89 and one portion thereof exposed to the outside of the second cover 87 . Proximal end 87a is an example of a first mount, and distal end 87b is an example of a second mount. The waterproof coating 82d is also referred to as a resinous part or a film.

The stretchable part 87c of the second cover 87 having the structure described above stretches and contracts as the cable 82 moves relative to the first cover 86. As shown in FIG.

The following describes in detail a support structure of the cable guide 85. As shown in FIG 14 As shown, the first cover 86 of the cable guide 85 is attached to the anchor plate 6 by welds 90 and 91. The first cover 86 is fixed to the anchor plate 6 at two separate locations (welds 90 and 91) in the extending direction of the cable 82. The first cover 86 may be fixed to the anchor plate 6 at three or more separate locations in the extending direction of the cable 82 . Welds 90 and 91 are an example of a cable management bracket.

How from the 15 As can be seen, the weld 90 is provided across the proximal end 86a of the first cover 86 and an edge of the opening 6d of the anchor plate 6 (a surface 6a of the anchor plate 6). The circumference of the proximal end 86a around the cable 82 (around the center Axis of the first cover 86) is only partially attached to the anchor plate 6 by the weld 90.

How from the 14 and 16 As can be seen, two welds 91 are provided closer to distal end 86b than to proximal end 86a. The two welds 91 serve to attach the first cover 86 to a projection 6e on the anchor plate 6. FIG. The two welds 91 are spaced from each other around the cable 82 in the first cover 86 .

As can be understood from the above, in the present embodiment, the first cover 86 (cable guide 85) is fixed by the welds 90 and 91 to the anchor plate 6, which is a bracket different from the fixing means 115, which is the bracket the housing 110 (drive mechanism 100) is fixed to the anchor plate 6. In other words, the cable guide 85 and the driving mechanism 100 are fixed with different brackets.

How from the 5 As can be seen, the proximal end 86a of the first cover 86 is inserted into the second bore 113b in the cylindrical portion 112 of the housing 110. FIG. An annular sealing member 116 is interposed between cylindrical portion 112 and proximal end 86a. In other words, the annular sealing member 116 interposed between the first cover 86 and the housing 110 is fitted into the second hole 113b. The sealing element 116 is z. B. an O-ring made of an elastomer. The sealing member 116 is fitted into a recess 113e of the case 110 . The recess 113e has an annular shape surrounding the proximal end 86a. The sealing element 116 seals between the housing 110 and the first cover 86 .

In the structure described above, the end of the cable guide 85 on the drive mechanism 100 side is open into the housing 110, and the end of the cable guide 85 on the brake shoe 3 side is closed.

As described above, in the present embodiment, the cable guide 85 has the first cover 86 having the closed portion and the second cover 87 having the closed portion. The first lubricant container 86e of the first cover 86 and the second lubricant container 87e of the second cover 87 accommodate the lubricant 88 . The second cover 87 has the proximal end 87a (first bracket) fixed to the first cover 86 without leakage of the lubricant 88 from the first lubricant tank 86i and the second lubricant tank 87e, and the distal end 87b (second bracket) fixed from of the first cover 86 and fixed to the second cable 82 without leakage of the lubricant 88 from the second lubricant tank 87e. The second cover 87 stretches and contracts as the cable 82 moves relative to the first cover 86 . Thus, thanks to the lubricant 88 within the cable guide 85 z. B. be prevented that the cable 82 wears out. It is also possible to reduce occurrence of rust and an abrasion powder in the cable guide 85 and reduce introduction thereof into the cable guide 85 from the outside, whereby the driving mechanism 100 can be stabilized in driving performance and improved in durability. Thus z. B. in controlling driving of the drive mechanism 100 (motor 120) based on a drive current value, abnormal drive current values are prevented.

In the present embodiment, z. For example, the first cover 86 has the two curved parts 86e1 and 86e2 between the opposite ends, the proximal end 86a and the distal end 86b, in the extending direction of the first cover 86. Compared with the first cover 86 having e.g. B. only has a curved part, z. B. a force applied to the part of the first cover 86 sliding with the cable 82 can be better distributed. This can improve the durability of the first cover 86 and the cable 82 . The first cover 86 can be manufactured more easily than the one with three or more curved parts. In addition, the first cover 86 can be improved in dimensional accuracy more easily than the first cover 86 which is fully curved.

In the present embodiment, the first cover 86 is fixed to the anchor plate 6 (supporting member) at at least two separate locations (welds 90 and 91) in the extending direction of the cable 82. This can e.g. B. improve the strength of the attached cable guide 85 and the rigidity of the anchor plate 6. In the present embodiment, the first cover 86 is fixed to the anchor plate 6 (supporting member) by the welds 90 and 91 . This can further improve the strength of the fixed cable guide 85 and the rigidity of the anchor plate 6 .

In the present embodiment, the annular sealing member 116 interposed between the proximal end 86a and the housing 110 is fitted into the recess 113e of the housing 110. As shown in FIG. Namely, the sealing structure can be simplified as compared with the one in which sealing members between both the drive mechanism 100 as well as the anchor plate 6 and between the anchor plate 6 and the cable guide 85 z. B. are inserted.

In the present embodiment, the proximal end 86a is made of a metallic material, and only a portion of the circumference of the cable 82 is fixed to the anchor plate 6 by the weld 90. FIG. This enables the welding time to be shortened from the time taken to weld the entire circumference of the proximal end 86a.

In the present embodiment, the cable 82 has the core member 82c and the waterproof coating 82d interposed between the core member 82c and the proximal end 87a to cover the outer periphery of the core member 82c. At this time, the cord 82 can be prevented from absorbing water entering from the outside into the inside of the second cover 87 due to a capillary phenomenon.

In the present embodiment, the first cover 86 is set to have an inner diameter sufficient for the engaging member 84 of the cable 82 to pass therethrough. Thus, attachment and detachment of the drive mechanism 100 can be facilitated by allowing the engagement member 84 to be e.g. B. through the first cover 86 passes.

The present embodiment has described the example in which the periphery of the proximal end 86a of the first cover 86 around the cable 82 is only partially fixed to the anchor plate 6 by the weld 90 . However, the present embodiment is not limited to this example. The entire circumference of the proximal end 86a around the cable 82 can be secured to the anchor plate 6 by the weld 90. FIG. In this case z. B. the strength of the fixed first cover 86 and the sealing performance between the anchor plate 6 and the first cover 86 are secured. The manner of attaching the first cover 86 and the second cover 87 is not limited to the one described above. The proximal end 87a of the second cover 87 can be inserted into the distal end 86b of the first cover 86 for attachment.

Second embodiment

one in the 17 and 18 The second embodiment shown differs from the first embodiment mainly in the construction and the support structure of the cable guide 85.

Like in the 17 As shown, the cable guide 85 has a bracket 95 in addition to the first cover 86 and the second cover 87. The bracket 95 is fixed to the outer periphery of the proximal end 86a of the first cover 86. As shown in FIG. The bracket 95 has a bracket 95a connected to the first cover 86 and protruding from the first cover 86 to the outside. Like in the 18 As shown, the bracket 95a is attached to the armature plate 6 and the housing 110 with the fasteners 115. In other words, in the present embodiment, the cable guide 85 and the driving mechanism 100 are fixed together to the anchor plate 6 with the same fixing means 115 (bracket). In the present embodiment, the welds 90 and 91 are not provided. In the present embodiment, the fasteners 115 are an example of a common bracket.

In the structure described above, for. For example, the braking device 2 can be simplified in structure because the cable guide 85 and the drive mechanism 100 are fixed to the anchor plate 6 with the same fixing means 115 (bracket). In addition, the cable guide 85 and the drive mechanism 100 are detachable with improved replacement work efficiency.

Third embodiment

one in the 19 The illustrated third embodiment differs from the first embodiment mainly in the support structure of the cable guide 85. In the present embodiment, the cable guide 85 is fixed to the anchor plate 6 via a washer 96. FIG. The washer 96 is fixed to the boss 6e together with a washer 97. As shown in FIG. In detail, the washer 96 is inserted between the boss 6e and the washer 97 and fixed to the boss 6e. The washer 96 extends to the first cover 86 of the cable guide 85, and an end (distal end) of the washer 96 on the first cover 86 side is fixed to the distal end 86b of the first cover 86 by the weld 91. In the present embodiment, the proximal end 86a of the first cover 86 is fixed to the anchor plate 6 by the weld 90 (see Figs 15 ). In other words, the first cover 86 is fixed to the anchor plate 6 at least at the opposite ends (the proximal end 86a and the distal end 86b) in the extending direction of the first cover 86 . Another part of the first cover 86 may be fixed to the anchor plate 6 in addition to the proximal end 86a and the distal end 86b.

In the structure described above, the distal end of the disc 96 extending from the projection 6e to the first cover 86 is fixed to the first cover 86 by the weld 91. FIG. Consequently, the welding work can be facilitated in comparison with directly welding the first cover 86 to the projection 6e.

Fourth embodiment

one in the 20 The illustrated fourth embodiment differs from the first embodiment mainly in the shape of the first cover 86 of the cable guide 85. In the present embodiment, the small-diameter part 86h2 of the first cover 86 is bent over the entire length. The small-diameter part 86h2 is an example of a curved part between the proximal end 86a and the distal end 86b. The first cover 86 may be bent over the entire length. In this case, the first cover 86 having a substantially constant outside diameter over the entire length can be easily bent.

In the structure described above, for. For example, the force applied to the part of the first cover 86 sliding with the cable 82 can be better distributed than in a case where the small-diameter part 86h2 has a linear part.

Fifth embodiment

one in the 21 until 24 The fifth embodiment shown differs from the first embodiment mainly in the structure of the cable guide 85. As shown in FIGS 21 and 22 1, the cable guide 85 of the present embodiment has a metal member 98 in addition to the first cover 86 and the second cover 87 (in Figs 21 and 22 not shown). In the present embodiment, the first cover 86 is made of a synthetic resin material such as. B. nylon or PBT, as from the 23 is evident. The distal end 86b of the first cover 86 is provided with an annular recess 86p, and a projection (not shown) of the second cover 87 fits into the recess 86p to fix the first cover 86 and the second cover 87 to each other. The shape of the distal end 86b can be the same as that of the first embodiment.

Like in the 24 As shown, the metal member 98 has a post 98a and a bracket 98b. The metal element 98 can e.g. B. from the same metallic material as that of the anchor plate 6 can be made.

Like in the 21 As shown, the bracket 98a has a substantially U-shaped section and extends along the outer periphery of the first cover 86. The bracket 98a supports the first cover 86 covering a portion of the outer periphery of the first cover 86. As shown in FIG. The first cover 86 is fitted into the bracket 98a. The support 98a is provided with a concavity 98c between the opposite ends in the extending direction. The concavity 98c makes the support 98a easily deformable, and the support 98a can be easily deformed to hold the first cover 86 in a constrained manner.

The bracket 98b extends from the end of the support 98a on the anchor plate 6 side to the outside of the first cover 86. The bracket 98b is formed along the anchor plate 6 in a disc-like manner, and is fixed to the anchor plate 6. As shown in FIG. The bracket 98b is provided with through holes 98d. The bracket 98b can be attached to the anchor plate 6 and the housing 110 with the fasteners 115 (in Fig 21 not shown) inserted into the through holes 98d, or may be fixed to the armature plate 6 by a weld or welds (not shown).

How from the 21 As can be seen, the support 98a and the first cover 86 extend diagonally with respect to a surface 98b1 of the bracket 98b, which surface 98b1 contacts the anchor plate 6. In the structure described above, the first cover 86 is made of a synthetic resin material, resulting in reduction of the cable guide 85 in weight.

In the present embodiment, the support 98a and the first cover 86 extend diagonally with respect to the contact surface 98b1 of the bracket 98b on the anchor plate 6. This can reduce or eliminate the amount (angle) of bending and tilting of the surface 6a of the anchor plate 6. whose surface 6a supports the surface 98b1 of the cable guide 85, e.g. B. to insert the cable 82 obliquely with respect to the wheel axle in the anchor plate 6.

Sixth embodiment

one in the 25 The sixth embodiment shown differs from the first embodiment mainly in the shape of the first cover 86 of the cable guide 85.

The first cover 86 of the present embodiment has a varying diameter portion 86q. The outer diameter of the varying diameter part 86q decreases from the proximal end 86a to the distal end 86b. The varying-diameter part 86q has a surface 86r facing the anchor plate 6 . The surface 86r contacts the anchor plate 6. The through hole 86c penetrates the surface 86r. A center 86c penetrates the surface 86r. A center 86ca of the through hole 86c in the surface 86r is eccentric with respect to a center 86ra of the surface 86r. As an example, the center 86ca of the through hole 86c is eccentric to be closer to the inside than the outside of the curvature of the first cover 86 . The center 86ca of the through hole 86c may be eccentric to be closer to the outside of the curvature of the first cover 86 than to the inside. With such a structure, as an example, a larger area of the surface 86r, ie, a non-eccentric side relative to the center 86ca of the through hole 86c, can be secured. At this time, the non-eccentric side of the surface 86r relative to the center 86ca of the through hole 86c can receive a larger load.

Seventh embodiment

one in the 26 The seventh embodiment shown differs from the first embodiment mainly in the shape of the first cover 86 of the cable guide 85.

The first cover 86 of the present embodiment has a large-diameter part 86s and a small-diameter part 86t. The large-diameter portion 86s extends from the proximal end 86a to the distal end 86b. The large-diameter portion 86s is fixed to the anchor plate 6 . The small-diameter part 86t extends from the large-diameter part 86s to the distal end 86b. The outer diameter of the small-diameter part 86t is smaller than the outer diameter of the large-diameter part 86s. The diameter of the through hole 86c is substantially constant through the large-diameter part 86s and the small-diameter part 86t. With this structure, the large-diameter part 86s can be thickened in thickness and thus can be firmly fixed to the anchor plate 6 by welding.

The elements in the above-described embodiments can be combined within the range of technical feasibility.

The embodiments described above additionally disclose the following features.

A vehicle brake has the cable guide, the braking member, the drive mechanism, the cable, and a support member.

The first cover has a curved part that is curved between opposite ends of the first cover.

The vehicle brake has a bracket that has a surface that contacts a surface of the support member, is connected to the first cover, and protrudes outward from the first cover.

The first cover extends diagonally with respect to the surface of the bracket.

The first cover is provided with a first through hole having the first lubricant reservoir and extending across the opposite ends of the first cover.

The cable guide has a surface that contacts the support member and through which the through hole passes.

The through hole in the surface is eccentric with respect to the center of the surface.

The first cover is fixed to the support member at at least two separate locations in the extending direction of the cable.

The drive mechanism has a housing provided with a recess.

An annular sealing member interposed between a proximal end of the first cover and the housing is fitted into the recess.

The first cover is made of a metallic material, and an outer periphery of the cable is surrounded and fixed by the support member through annular welding.

The first cover is made of a metallic material, and only a part of the outer periphery of the cable in the circumferential direction is fixed to the support member by welding.

The drive mechanism has a housing.

There is a bracket connected to the first cover and protruding outwardly from the first cover.

The bracket is attached to the housing with fasteners.

There is a metal member that supports the first cover and is fixed to the support member.

The first cover is made of a synthetic resin material.

The cable has a core member and a waterproof coating covering the outer periphery of the core member and sandwiched between the core member and the second bracket.

For example, the above embodiments have been described such that the braking device 2 is a leading/trailing drum brake, but according to the present invention, it may be a device of another type.

reference list

1

wheel

2

Braking device (vehicle brake)

3

brake shoe (brake element)

6

anchor plate (support element)

82

Cable

85

cable routing

86

first cover

86e1, 86e2

curved part

86i

first lubricant container

87

second cover

87e

second lubricant tank

88

lubricant

110

Housing

Claims (7)

A vehicle brake having a cable guide (85) which receives and guides a cable (82), the cable (82) being interposed between a braking element (3) and a driving mechanism (100) to rotate the braking element (3) using a power of the A drive mechanism (100) to brake a wheel, the cable guide (85) comprising: a first cover (86) having a closed portion extending along the cable (82) while covering the cable (82 ) covered to slidably guide the cable (82) and having a first lubricant reservoir (86i) capable of containing a lubricant between the first cover (86) and the cable (82); and a second cover (87) having a closed portion, extending along the cable (82) while covering the cable (82), and having a second lubricant tank (87e) connected to the first lubricant tank (86i). and being able to contain the lubricant between the second cover (87) and the cable (82), the second cover (87) including a first bracket (87a) which attaches to the first cover (86) without leakage of the lubricant from the first lubricant container (86i) and the second lubricant container (87e), and a second bracket (87b) spaced from the first cover (86) and attached to the cable (82) without leakage of the lubricant from the second the lubricant reservoir (87e) is fixed, the second cover (87) stretching and contracting therealong with movement of the cable (82) relative to the first cover (86); the braking element (3); the drive mechanism (100); the cable (82); a support member (6) to which the drive mechanism (100) is fixed; a drive mechanism mount (115) which attaches the drive mechanism (100) to the support member (6); and a cable guide bracket (90; 91) different from the drive mechanism bracket (115) and fixing the cable guide (85) to the support member (6), characterized in that the support member (6) is a vehicle brake anchor plate connectable to the body of the vehicle . A vehicle brake comprising: a cable guide (85) accommodating and guiding a cable (82), the cable (82) being interposed between a braking element (3) and a driving mechanism (100) to rotate the braking element (3) using a power of the drive mechanism (100) to brake a wheel, the cable guide (85) comprising: a first cover (86) having a closed portion which extends along the cable (82) while covering the cable ( 82) covered to slidably guide the cable (82) and having a first lubricant reservoir (86i) capable of containing a lubricant between the first cover (86) and the cable (82); and a second cover (87) having a closed portion, extending along the cable (82) while covering the cable (82), and having a second lubricant tank (87e) connected to the first lubricant tank (86i). and being able to receive the lubricant between the second cover (87) and the cable (82), the second cover (87) comprising a first bracket (87a) which is attached to the first cover (86) without leakage of the lubricant from the first lubricant reservoir (86i) and the second lubricant reservoir (87e), and a second bracket (87b) spaced from the first cover (86) and attached to the cable (82 ) secured without leakage of lubricant from the second lubricant reservoir (87e), the second cover (87) stretching and contracting along with movement of the cable (82) relative to the first cover (86); the braking element (3); the drive mechanism (100); the cable (82); a support member (6) to which the drive mechanism (100) is fixed; and a common bracket (115) attaching the cable guide (85) and the drive mechanism (100) to the support member (6), characterized in that the support member (6) is a vehicle brake anchor plate connectable to the body of the vehicle, wherein the first cover (86) has a bracket (95a) projecting outwardly from the first cover (86), the bracket (95a) and the drive mechanism (100) being mounted together with the common bracket (115) on the support member (6 ) are attached. vehicle brake after claim 1 or 2 wherein the first cover (86) comprises two curved parts (86e1; 86e2) between opposite ends in an extending direction of the first cover (86). Vehicle brake according to one of Claims 1 until 3 wherein the first cover (86) is made of a non-stretchable member, and the second cover (87) is made of a stretchable member stretchable in an extending direction of the cable (82). Vehicle brake according to one of Claims 1 until 4 wherein the drive mechanism (100) is fixed to a support member (6), and the first cover (86) is fixed at least at opposite ends to the support member (6) in the direction of extension. Vehicle brake according to one of Claims 1 until 5 wherein the drive mechanism (100) comprises a housing (110) provided with a bore, the first cover (86) is fitted into the bore, and an annular sealing member (116) between the first cover (86) and the housing (110) is inserted and fitted into the hole. Vehicle brake according to one of Claims 1 until 6 , further comprising a bracket (98b) connected to the first cover (86) and protruding outwardly from the first cover (86), the drive mechanism (100) being fixed to the support member (6), the bracket (98b ) has a surface (98b1) contacting a surface of the support member (6), and the first cover (86) extends diagonally with respect to the surface of the bracket (98b).

Images