JP6641881B2 - Vehicle brakes - Google Patents

Description

  The present invention relates to a vehicle brake.

  2. Description of the Related Art Conventionally, there has been known a vehicular brake that converts a rotation of a motor into a linear motion of a cable in a motion conversion mechanism and obtains a braking state by pulling the cable and moving a brake shoe (for example, Patent Document 1).

JP 2014-504711 A

  In such a vehicle brake, for example, if the size of the motion conversion mechanism is large, it becomes difficult to mount the vehicle on a vehicle. Therefore, one of the objects of the present invention is to obtain, for example, a vehicle brake that can be configured to be smaller.

The vehicle brake of the present invention is, for example, a motor, an operating member that moves a braking member to brake a wheel, a female screw portion, the female screw portion and the female screw portion that are arranged in the axial direction of the female screw portion, and A driven part positioned radially outside of the female screw part and rotated by rotation of the motor, and opened toward the opposite side of the female screw part on the radially inner side of the driven part. A rotating member, a male screw portion meshing with the female screw portion, and a connecting portion arranged in the axial direction with the operating member and connected to the operating member. A moving member that moves in the axial direction with the connecting member, wherein the connecting portion is configured to be movable in the concave portion, and a connecting member that connects the connecting portion and the operating member is provided. To the above axis direction Capable guide part which the connecting member with guides to limit the rotation in the circumferential direction of the female screw portion is provided, the connecting member is movably configured within the recess.

In the above-described vehicle brake, the connecting portion is movable in the concave portion of the rotating member. Therefore, for example, the rotating member and the linear motion member having the connecting portion can be arranged more compactly in the axial direction, whereby the vehicle brake can be further downsized. The connecting member is used for connecting the linear motion member to the cable and for restricting rotation of the linear motion member. Further, the connecting member is movable into the concave portion of the rotating member. Therefore, the vehicle brake is more miniaturized than, for example, a configuration in which a mechanism for restricting the rotation of the linear motion member is provided separately from the connecting member, or a configuration in which the connecting member cannot enter the recess of the rotating member. sell.

  In the above-described vehicle brake, for example, the motor has a case that rotatably accommodates a rotor, and the driven parts are aligned with the case in the axial direction of the motor.

  According to the above-described vehicle brake, by disposing the driven portion in the axial direction of the case, for example, the motor and the rotating member having the driven portion can be more compactly disposed in the radial direction, and thereby, the vehicle brake However, the size can be further reduced.

  In the vehicle brake, for example, the motor has a case that rotatably houses the rotor, and the female screw portion is arranged in a radial direction of the motor with the case.

  According to the vehicle brake, by arranging the female screw portion in the radial direction of the case, for example, the motor and the rotating member having the female screw portion can be more compactly arranged in the axial direction, whereby the vehicle brake is It can be more compact.

FIG. 1 is an exemplary schematic rear view of a vehicle brake according to an embodiment, as viewed from the rear of the vehicle. FIG. 2 is an exemplary schematic side view of the vehicle brake according to the embodiment as viewed from the outside in the vehicle width direction. FIG. 3 is an exemplary schematic side view of the operation of the braking member by the vehicle brake moving mechanism according to the embodiment, and is a diagram in a non-braking state. FIG. 4 is an exemplary and schematic side view of the operation of the braking member by the vehicle brake moving mechanism according to the embodiment, and is a diagram in a braking state. FIG. 5 is an exemplary and schematic cross-sectional view of a drive mechanism included in the vehicle brake according to the embodiment, in a non-braking state. FIG. 6 is an exemplary and schematic cross-sectional view of a drive mechanism included in the vehicle brake according to the embodiment, and is a diagram in a braking state. FIG. 7 is a sectional view taken along line VII-VII of FIG.

  Hereinafter, exemplary embodiments of the present invention will be disclosed. A configuration of the embodiment described below, and an operation and a result (effect) provided by the configuration are examples. The present invention can be implemented by configurations other than those disclosed in the following embodiments. Further, according to the present invention, at least one of various effects (including derivative effects) obtained by the configuration can be obtained.

  In FIGS. 1 to 4, for convenience, the front in the vehicle front-rear direction is indicated by an arrow X, the outside in the vehicle width direction (axle direction) is indicated by an arrow Y, and the upper side in the vehicle up-down direction is indicated by an arrow Z. .

  Also, in the following, a case where the brake device 2 as an example of the vehicle brake is applied to the left rear wheel (non-driving wheel) is illustrated, but the present invention is similarly applicable to other wheels. It is.

<Structure of brake device>
As shown in FIG. 1, the brake device 2 is housed inside a peripheral wall 1 a of a cylindrical wheel 1. The brake device 2 is configured as a drum brake. That is, as shown in FIG. 2, the brake device 2 includes arc-shaped brake shoes 3 on both front and rear sides. Around the brake device 2, a cylindrical drum 4 (see FIGS. 3 and 4) is provided. The drum 4 rotates integrally with the wheel 1 around a rotation center C along the vehicle width direction (Y direction). The brake device 2 moves the two brake shoes 3 so as to contact the inner peripheral surface 4 a of the cylindrical drum 4. As a result, the friction between the brake shoe 3 and the drum 4 brakes the drum 4 and thus the wheel 1. The brake shoe 3 is an example of a braking member.

  The brake device 2 includes, as actuators for moving the brake shoes 3, a wheel cylinder 51 (see FIG. 2) that operates by hydraulic pressure, and a motor 120 (see FIG. 5) that operates by energization. The wheel cylinder 51 and the motor 120 can move two brake shoes 3 respectively. The wheel cylinder 51 is used, for example, for braking during traveling, and the motor 120 is used, for example, for braking during parking. That is, the brake device 2 is an example of an electric parking brake. Note that the motor 120 may be used for braking during traveling.

  The brake device 2 includes a disk-shaped back plate 6 as shown in FIGS. The back plate 6 is provided in a posture crossing the vehicle width direction. That is, the back plate 6 extends substantially along the direction intersecting with the vehicle width direction, specifically, substantially along the orthogonal direction (XZ plane). As shown in FIG. 1, components of the brake device 2 are provided on both the outside and the inside of the back plate 6 in the vehicle width direction. The back plate 6 directly or indirectly supports each component of the brake device 2. That is, the back plate 6 is an example of a support member. The back plate 6 is connected to a connection member (not shown) with the vehicle body. The connection member is, for example, a part of a suspension (for example, an arm, a link, a mounting member, and the like). The opening 6b provided in the back plate 6 shown in FIG. 2 is used for coupling with a connecting member. Note that the brake device 2 can also be used for driving wheels. When the brake device 2 is used for driving wheels, an axle (not shown) passes through an opening 6c provided in the back plate 6 shown in FIG. The back plate 6 is made of, for example, a metal material.

  The wheel cylinder 51 and the brake shoes 3 shown in FIG. 2 are arranged outside the back plate 6 in the vehicle width direction. The brake shoe 3 is movably supported by the back plate 6. In the present embodiment, as shown in FIG. 3, for example, the lower end 3a of the brake shoe 3 is supported by the back plate 6 so as to be rotatable around the rotation center C1. The rotation center C1 is substantially parallel to the rotation center C of the wheel 1. The wheel cylinder 51 is supported on the upper end of the back plate 6. The wheel cylinder 51 has two movable parts (pistons, not shown) that can protrude in the vehicle front-rear direction (left-right direction in FIG. 2). The wheel cylinder 51 causes the two movable parts to protrude according to the pressure. The two protruding movable parts press the upper end 3b of the brake shoe 3, respectively. Due to the protrusion of the two movable parts, the two brake shoes 3 rotate around the rotation center C1, respectively, and move such that the upper ends 3b are separated from each other in the vehicle front-rear direction. Accordingly, the two brake shoes 3 move radially outward of the rotation center C of the wheel 1. A belt-like lining 31 is provided on the outer peripheral portion of each brake shoe 3 along a cylindrical surface. Therefore, the lining 31 and the inner peripheral surface 4a (see FIG. 4) of the drum 4 come into contact with each other by the movement of the two brake shoes 3 radially outward of the rotation center C. The drum 4 and thus the wheel 1 are braked by friction between the lining 31 and the inner peripheral surface 4a. Further, as shown in FIG. 2, the brake device 2 includes a return member 32. When the operation of pushing the brake shoe 3 by the wheel cylinder 51 is released, the return member 32 moves the two brake shoes 3 from a position where the brake shoe 3 comes into contact with the inner peripheral surface 4a of the drum 4 (braking position Pb, see FIG. 4). The drum 4 is moved to a position not in contact with the inner peripheral surface 4a (non-braking position Pn, initial position, see FIG. 3). The return member 32 is an elastic member such as a coil spring, for example, and applies a force in a direction approaching the other brake shoe 3, that is, a force in a direction away from the inner peripheral surface 4 a of the drum 4 to each brake shoe 3. .

<Configuration and operation of moving mechanism>
Further, the brake device 2 includes a moving mechanism 8 (see FIGS. 3 and 4) that moves the two brake shoes 3 from the non-braking position Pn to the braking position Pb. The moving mechanism 8 is provided outside the back plate 6 in the vehicle width direction. As shown in FIGS. 2 to 4, the moving mechanism 8 includes a lever 81 (not shown in FIG. 2), a cable 82, and a strut 83. The lever 81 is disposed between one of the two, for example, between the brake shoe 3L on the left side of FIG. 2 and the back plate 6 so as to overlap the brake shoe 3L and the back plate 6 in the axial direction of the rotation center Ax of the wheel 1. Is provided. The lever 81 is rotatably supported by the brake shoe 3L about the rotation center Ax2. The rotation center Ax2 is located on the side of the brake shoe 3L remote from the rotation center Ax0, in the upper end in FIG. 2, and is substantially parallel to the rotation center Ax and the rotation center Ax0. The cable 82 moves the lower end portion 81a farther from the rotation center Ax2 of the lever 81 in a direction approaching, for example, the brake shoe 3R on the right side in FIG. The cable 82 moves substantially along the back plate 6. The strut 83 is interposed between the lever 81 and another brake shoe 3R different from the brake shoe 3L on which the lever 81 is supported, and stretches between the lever 81 and the other brake shoe 3R. The connection position P1 between the lever 81 and the strut 83 is set between the rotation center Ax2 and the connection position P2 between the cable 82 and the lever 81. The cable 82 is an example of an operating member that moves the brake shoe 3.

  In such a moving mechanism 8, when the cable 82 is pulled and moves to the right in FIGS. 3 and 4, the lever 81 moves in a direction approaching the brake shoe 3R as shown in FIG. 4 (arrow a). The lever 81 pushes the brake shoe 3R via the strut 83 (arrow b). As a result, the brake shoe 3R rotates from the non-braking position Pn (FIG. 3) around the rotation center Ax0 (arrow c), and moves to a position (braking position Pb, FIG. 4) in contact 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 a point of force, the rotation center Ax2 corresponds to a fulcrum, and the connection position P1 between the lever 81 and the strut 83 corresponds to an action point. Further, in a state where the brake shoe 3R is in contact with the inner peripheral surface 4a, when the lever 81 moves to the right in FIGS. 3 and 4, that is, when the strut 83 moves in a direction to push the brake shoe 3R (arrow a), the strut 83 stretches. Thus, the lever 81 rotates in the direction opposite to the direction in which the lever 81 moves, that is, in the counterclockwise direction in FIGS. 3 and 4 around the connection position P1 with the strut 83 (arrow d). Thus, the brake shoe 3L rotates from the non-braking position Pn (FIG. 3) around the rotation center Ax0, and moves to a position (braking position Pb, FIG. 4) in contact with the inner peripheral surface 4a of the drum 4. Thus, the operation of the moving mechanism 8 causes the brake shoes 3L, 3R to move from the non-braking position Pn to the braking position Pb. In the state after the brake shoe 3R comes into contact with the inner peripheral surface 4a of the drum 4, the connection position P1 between the lever 81 and the strut 83 becomes a fulcrum. The amount of movement of the brake shoes 3L, 3R is very small, for example, 1 mm or less.

<Drive mechanism>
In the drive mechanism 100 shown in FIGS. 1, 2, 5, and 6, the drive mechanism 100 moves the two brake shoes 3 from the non-braking position Pn to the braking position Pb via the moving mechanism 8. The drive mechanism 100 is located inside the back plate 6 in the vehicle width direction, and is fixed to the back plate 6. The cable 82 shown in FIGS. 2 to 4 passes through an opening (not shown) provided in the back plate 6.

  As shown in FIG. 5, the drive mechanism 100 includes a housing 110, a motor 120, a speed reduction mechanism 130, and a motion conversion mechanism 140.

  The housing 110 supports a motor 120, a speed reduction mechanism 130, and a motion conversion mechanism 140. Housing 110 includes a plurality of members. The plurality of members are connected and integrated by a connecting tool (not shown) such as a screw. An accommodation room R surrounded by a wall 111 is provided in the housing 110. The motor 120, the speed reduction mechanism 130, and the motion conversion mechanism 140 are accommodated in the accommodation room R and covered by the wall 111. The housing 110 can be called a base, a support member, a casing, or the like. Note that the configuration of the housing 110 is not limited to those illustrated here.

  The motor 120 is an example of an actuator, and has a case 121 and a housing component housed in the case 121. The housing components include, for example, a stator, a rotor, a coil, a magnet (not shown), and the like, in addition to the shaft 122. The shaft 122 protrudes from the case 121 in the direction D1 along the first rotation center Ax1 of the motor 120. The direction D1 is the right side in FIG. The motor 120 is driven by driving power based on the control signal, and rotates the shaft 122. Shaft 122 may also be referred to as an output shaft.

  Reduction mechanism 130 includes a plurality of gears rotatably supported by housing 110. The plurality of gears are, for example, a first gear 131, a second gear 132, and a third gear 133. The speed reduction mechanism 130 can be referred to as a rotation transmission mechanism.

  The first gear 131 rotates integrally with the shaft 122 of the motor 120. The first gear 131 can be called a drive gear.

  The second gear 132 rotates around a second rotation center Ax2 parallel to the first rotation center Ax1. Second gear 132 includes 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 larger than the number of teeth of the first gear 131. Therefore, the second gear 132 is reduced to a lower rotation speed than the first gear 131. The output gear 132b is located in a direction opposite to the direction D1 with respect to the input gear 132a. The second gear 132 can 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 larger than the number of teeth of the output gear 132b. Therefore, the third gear 133 is reduced to a lower rotation speed than the second gear 132. The third gear 133 can be referred to as a driven gear. Note that the configuration of the speed reduction mechanism 130 is not limited to those illustrated here. The reduction mechanism 130 may be a rotation transmission mechanism other than a gear mechanism, such as a rotation transmission mechanism using a belt, a pulley, or the like.

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

  The rotation member 141 rotates around the third rotation center Ax3. The rotating member 141 has a small-diameter portion 141a and a large-diameter portion 141b having a larger outer diameter than the small-diameter portion 141a. The small diameter portion 141a is a portion of the rotating member 141 that is located in a direction opposite to the D1 direction, and has a cylindrical shape. The large diameter portion 141b is a portion of the rotating member 141 located in the direction D1. The large diameter part 141b has a bottom wall part 141b1 and a side wall part 141b2. The bottom wall portion 141b1 projects radially from the end of the small-diameter portion 141a in the direction D1, and is formed in an annular and plate-like shape. The side wall portion 141b2 extends in the direction D1 from the peripheral edge of the bottom wall portion 141b1, and is formed in a cylindrical shape. The side wall 141b2 may be referred to as a peripheral wall or a cylindrical wall. The large-diameter portion 141b is provided with a concave portion 141b3 that is open in the direction D1.

  The teeth of the third gear 133 are provided on the side wall portion 141b2 of the large diameter portion 141b. That is, the rotating member 141 is also the third gear 133. The part of the third gear 133 where the teeth are provided is an example of a driven part. The cylindrical portion 112 of the housing 110 is accommodated in the concave portion 141b3. In the concave portion 141b3, the thrust bearing 143 is located between the end portion 112a of the cylindrical portion 112 in the direction opposite to the direction D1 and the bottom wall portion 141b1. The thrust bearing 143 receives a load in the axial direction of the third rotation center Ax3. The thrust bearing 143 is a thrust roller bearing in the example of FIG. 5, but is not limited thereto. The large-diameter portion 141b and thus the rotating member 141 are rotatably supported by the housing 110 via a thrust bearing 143.

  The small diameter portion 141a is inserted into a radial bearing 144 housed in the first hole 113a of the housing 110. The cross section of the first hole 113a is substantially circular. The first hole 113a extends along the axial direction of the third rotation center Ax3. The small diameter portion 141a and thus the rotating member 141 are rotatably supported by the housing 110 via a radial bearing 144. The radial bearing 144 is a metal bush in the example of FIG. 5, but is not limited to this.

  The rotating member 141 is provided with a through-hole 141c having a circular cross section penetrating the small-diameter portion 141a and the bottom wall portion 141b1. A female screw portion 145a is provided in the through hole 141c.

  The translation member 142 extends along the third rotation center Ax3 and penetrates the rotation member 141. The linear member 142 has a rod-shaped part 142a and a connecting part 142b.

  The rod portion 142a is inserted into the through hole 141c of the rotating member 141, the concave portion 141b3 of the large diameter portion 141b of the rotating member 141, and the second hole 113b provided in the cylindrical portion 112 of the housing 110. The cross section of the second hole 113b is substantially circular. The second hole 113b is located in the direction D1 of the first hole 113a, and extends along the axial direction of the third rotation center Ax3. The cross section of the rod portion 142a is substantially circular. The rod-shaped part 142a is provided with a male screw part 145b that meshes with the female screw part 145a of the rotating member 141.

  The connecting portion 142b is connected to the end 82a of the cable 82 by a connecting member 146. The connecting member 146 penetrates the end 82a of the cable 82 and the connecting portion 142b as shown in FIG. The connection member 146 is, for example, a pin.

  As shown in FIG. 7, a groove 113c is provided on the inner surface of the second hole 113b provided in the cylindrical portion 112 of the housing 110. The groove 113c extends with a substantially constant width and depth along the third rotation center Ax3. The grooves 113c are provided at two positions with the third rotation center Ax3 therebetween. The longitudinal end of the connecting member 146 is inserted into the groove 113c. The circumferential width of the third rotation center Ax of the groove 113c is set slightly larger than the width of the longitudinal end of the connecting member 146. Therefore, the connection member 146 and the circumferential surface of the groove 113c are in contact with each other, so that the rotation of the connection member 146 and thus the translation member 142 around the third rotation center Ax3 is restricted. In addition, as shown in FIG. 6, the connecting member 146 can move into the recess 141b3. That is, the connecting member 146 is located in the concave portion 141b3 in a state where the translation member 142 is located at the braking position Pb. The surface 113d of the groove 113c in the direction D1 shown in FIG. 7 restricts the movement of the connecting member 146 in the direction D1. The surface 113d can be referred to as a stopper or a position limiter. The structure for connecting the linear member 142 and the cable 82 is not limited to the example shown in FIG.

  In such a configuration, the rotation of the shaft 122 of the motor 120 is transmitted to the rotation member 141 via the speed reduction mechanism 130, and when the rotation member 141 rotates, the female screw part 145a of the rotation member 141 and the male screw part of the linear member 142 Due to the engagement with the 145b and the restriction of the rotation of the translation member 142 by the housing 110 in the groove 113c, the translation member 142 is braked to the non-braking position Pn (FIG. 5) along the axial direction of the third rotation center Ax3. It moves between the position Pb (FIG. 6).

  The portion of the cylindrical portion 112 of the housing 110 where the groove 113c is provided is an example of a rotation restricting portion that restricts the rotation of the connecting member 146 and thus the translation member 142 around the third rotation center Ax3. It is also an example of a guide portion that guides the translation member 142 along the axial direction of the third rotation center Ax3.

  In the above-described embodiment, as shown in FIG. 6, in a state where the translation member 142 is at the braking position Pb, the connecting portion 142 b between the translation member 142 and the cable 82 is 141b3. Therefore, according to the present embodiment, for example, the rotation member 141 and the linear motion member 142 can be arranged more compactly in the axial direction of the third rotation center Ax3, and the brake device 2 can be further reduced in size.

  In the present embodiment, as shown in FIG. 6, a connecting member 146 that connects the linear motion member 142 and the cable 82 is movable in the concave portion 141b3 of the rotating member 141. That is, according to the present embodiment, the connecting member 146 is used to connect the linear motion member 142 and the cable 82 and is used to limit the rotation of the linear motion member 142. Further, the connecting member 146 is located in the concave portion 141b3 of the rotating member 141 in a state where the translation member 142 is at the braking position Pb. Therefore, according to the present embodiment, for example, as compared with a configuration in which a mechanism for restricting rotation of the linear motion member 142 is provided separately from the coupling member 146 or a configuration in which the coupling member 146 cannot enter the recess 141b3, The device 2 can be smaller.

  In the present embodiment, as shown in FIGS. 5 and 6, the third gear 133 (driven portion) included in the rotating member 141 is arranged in the axial direction of the first rotation center Ax1 that is the rotation center of the motor 120. And the case 121 of the motor 120. Therefore, according to the present embodiment, for example, the third gear 133 is not aligned with the case 121 of the motor 120 in the axial direction of the first rotation center Ax1, that is, the third gear 133 is formed of the case 121 of the motor 120. The motor 120 and the rotary member 141 can be more compactly arranged in the radial direction than in a configuration in which the motor 120 and the rotating member 141 are radially displaced from the region located in the axial direction. Thus, the size of the brake device 2 can be further reduced.

  In the present embodiment, as shown in FIGS. 5 and 6, the female screw portion 145 a included in the rotating member 141 is provided with a case of the motor 120 in the radial direction of the first rotation center Ax1 which is the rotation center of the motor 120. It is lined with 121. Therefore, according to the present embodiment, for example, the female screw portion 145a is not aligned with the case 121 of the motor 120 in the radial direction of the first rotation center Ax1, that is, the female screw portion 145a has the diameter of the case 121 of the motor 120. The motor 120 and the rotating member 141 can be more compactly arranged in the radial direction than in a configuration in which the motor 120 and the rotating member 141 are displaced in the axial direction from the region located in the axial direction. Thus, the size of the brake device 2 can be further reduced.

  As described above, the embodiment of the present invention has been exemplified, but the above embodiment is merely an example, and is not intended to limit the scope of the invention. The above embodiments can be implemented in other various forms, and various omissions, replacements, combinations, and changes can be made without departing from the spirit of the invention. In addition, the specifications (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) of each configuration, shape, etc. may be changed as appropriate. Can be implemented.

  For example, in the above embodiment, the brake device 2 is configured as a leading trailing type drum brake, but the present invention can also be configured as another type of brake device. Further, the present invention can be implemented as a configuration corresponding to the other actuator of a brake device having a disk brake by one actuator and a drum brake by another actuator.

  Further, in the above-described embodiment, the configuration in which the operating member that moves the braking member is the cable 82 is illustrated, but the operating member may be other than the cable 82, such as a rod or a lever. Also, the actuating member may move the braking member by pushing instead of pulling.

  DESCRIPTION OF SYMBOLS 1 ... Wheel, 2 ... Brake device (vehicle brake), 3 ... Brake shoe (braking member), 82 ... Cable (operating member), 110 ... Housing, 113c ... Groove part (guide part), 120 ... Motor, 121 ... Case Reference numeral 133: third gear (driven portion), 141: rotating member, 141b3: concave portion, 142: linear member, 142b: connecting portion, 145a: female screw portion, 145b: male screw portion, 146: connecting member.

Claims (3)

Motor and
An actuating member for moving a braking member to brake the wheel;
A female screw portion, and a driven portion which is arranged in the axial direction of the female screw portion and the female screw portion and is positioned outside the female screw portion in the radial direction of the female screw portion and rotated by the rotation of the motor, A rotating member provided with a concave portion opened toward the opposite side to the female screw portion on the radially inner side than the driven portion,
A direct-acting member that has a male screw portion that meshes with the female screw portion, and a connecting portion that is aligned with the male screw portion in the axial direction and connected to the operating member, and that moves in the axial direction with rotation of the rotating member. When,
With
The connection portion is configured to be movable in the recess ,
A connecting member that connects the connecting portion and the operating member,
A guide portion that guides the connection member movably in the axial direction and restricts the connection member from rotating along the circumferential direction of the female screw portion is provided,
A vehicle brake , wherein the connecting member is configured to be movable in the recess. The motor has a case that rotatably houses the rotor,
The driven unit, aligned with the casing in the axial direction of the motor, a vehicle brake of claim 1. The motor has a case that rotatably houses the rotor,
The female screw portion is aligned with said casing in a radial direction of the motor vehicle brake according to claim 1 or 2.

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