JP2019217905A - Actuator unit for electric parking brake and vehicle having the same - Google Patents

Abstract

To provide an actuator unit for an electric parking brake which can be installed at a small vehicle without affecting structure and layouts of a crushable space and other members such as a brake cable.SOLUTION: An actuator unit (1) includes: a holding member (6) fixed to a structure (2) of a vehicle (V); a linear actuator (7) fixed to the holding member; a lever (9) connected to an output member (30) of the actuator and a brake cable (5). The actuator and the brake cable are connected through the lever to enable the actuator unit to be arranged not in front of a traction rod (3) and an equalizer (4) but at the lateral side of these components. Therefore, the actuator unit can be disposed at the rear relative to a crushable space (44) provided at the front end side of the vehicle without changing a layout of the brake cable.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to an actuator unit for an electric parking brake of a vehicle and a vehicle including the same.

  The electric parking brake of a vehicle includes an actuator that converts the rotation of an electric motor into a linear motion and outputs the same, a pair of left and right brake cables whose front ends are connected to the actuator via an equalizer, and a rear end of each brake cable. And a pair of left and right brakes for the rear wheels connected to the vehicle (for example, see Patent Document 1). As the brake, a drum type for mechanically expanding a shoe of a drum brake, a disk type for pressing a pad against a disk, and the like are employed. When the output member of the actuator disposed in front of the equalizer moves forward, the equalizer distributes force evenly to the left and right, pulls the pair of left and right brake cables forward, and brakes the pair of left and right rear wheels.

JP 2008-309516 A

  At the front end of the vehicle, a crushable space for absorbing energy at the time of a collision is provided. In a small car, when an electric parking brake is provided in place of a hand lever type or pedal type parking brake, the front end side of the actuator may be located in a crushable space. In this case, change the design of the crushable space so that safety is ensured even if the actuator is located in the crushable space, or change the layout of the brake cable so that the actuator can be placed sideways, and It was necessary to keep them from entering the crushable space.

  In view of such a problem, an object of the present invention is to provide an actuator unit for an electric parking brake that can be installed in a small car without affecting the structure and layout of other members such as a crushable space and a brake cable. I do.

  An electric parking brake actuator unit (1, 51, 61, 71) according to at least some embodiments of the present invention includes: a case (29) to be fixed to a structure (2) of a vehicle (V); An actuator (7) having an output member (30) linearly moving with respect to a case, a fulcrum (36) rotatable with respect to the structure, and connected to the output member at a position different from the fulcrum. A lever (9, having a first connecting portion (35) and a second connecting portion (41) to be connected to a pair of left and right brake cables (5) at positions different from the fulcrum portion and the first connecting portion. 53, 62), wherein the actuator and the pair of left and right brake cables include a first connection portion and a second connection portion of the lever, and are on a plane parallel to a rotation axis of the fulcrum portion. Characterized in that it is configured to be positioned on the same side with. Here, the connection between the lever and the output member or the brake cable is directly connected to each other or connected via another member (the connection member (8) or the traction member (3) and the equalizer (4)). And when.

  According to this configuration, since the output member pulls the brake cable via the lever, the brake cable can be pulled in a direction opposite to the displacement of the output member. Therefore, the actuator units can be arranged in parallel, not in series, with the brake cable or a member interposed between the brake cable and the lever. Therefore, the actuator unit can be installed in a small car without affecting the structure and layout of other members such as the crushable space and the brake cable.

  The electric parking brake actuator unit (1) according to at least some embodiments of the present invention, in the above-described configuration, further includes a holding member (6) to be fixed to the structure, and the case includes the holding member. The holding member fixes the case so as to be fixed to the structure via the support member, and the holding member rotatably supports the lever at the fulcrum.

  According to this configuration, since the actuator and the lever are supported by the structure by attaching the holding member to the structure, the attachment of the actuator unit is facilitated.

  In the actuator unit for an electric parking brake according to at least some embodiments of the present invention, in the above-described configuration, the holding member is configured to extend in a front-rear direction of the vehicle; And a pair of fixing portions (17, 18) to be fixed to the structure by extending from the front to the back in the direction intersecting the front-rear direction, respectively. The first fixing portion extends from the base so as to move forward toward one side in the left-right direction, and the second fixing portion extends from the base portion so as to move rearward toward the one side. Is preferred.

  According to this configuration, when the vehicle collides, the pair of fixed portions is easily deformed or broken, or the base portion is easily buckled. Therefore, the actuator unit does not prevent the space in which the actuator unit is arranged from absorbing energy at the time of a vehicle collision.

  The electric parking brake actuator unit according to at least some embodiments of the present invention is characterized in that, in the above-described configuration having the holding member, the holding member has a stopper (40) for limiting displacement of the lever. .

  According to this configuration, the pivotable range of the lever can be determined by the stopper.

  An actuator unit for an electric parking brake according to at least some embodiments of the present invention, in any one of the above configurations, wherein the lever includes a first lever piece (42) including the fulcrum portion and the first connection portion; A second lever piece (43) rigidly connected to the first lever piece at the fulcrum portion, the second lever piece including the fulcrum portion and the second connecting portion, wherein the second lever piece is connected to the first lever piece. On the other hand, the fulcrum is offset in the direction of the rotation axis.

  According to this configuration, it is possible to allow a shift in the position between the output member and the brake cable in the rotation axis direction.

  According to at least some embodiments of the present invention, there is provided a vehicle to which the actuator unit for an electric parking brake according to any one of the above configurations is attached, wherein the structure includes a pair of left and right front side frames (2a, 2a). A first cross member (2b) bridged between the pair of left and right front side frames, and a second cross member bridged between the pair of left and right front side frames behind the first cross member. A member (2c), a pair of left and right bump pasties (2d, 2d) extending from the front ends of the pair of left and right front side frames, and a bumper beam (2e) bridged between the front ends of the pair of left and right bump pasties. The electric parking brake actuator unit is fixed to the first cross member and the second cross member. And characterized in that it is.

  According to this configuration, the electric parking brake actuator unit is disposed behind the crash bull space (44) formed by the pair of left and right bump pasties and the bumper beam, and the electric parking brake actuator unit has the function of the crushable space. Does not inhibit.

  In the vehicle according to at least some embodiments of the present invention, in the above-described configuration, the actuator and the pair of left and right brake cables are disposed behind the lever.

  According to this configuration, the actuator unit does not affect the structure and layout of other members such as the crushable space and the brake cable.

  In the vehicle according to at least some embodiments of the present invention, in the above-described configuration, the lever includes an equalizer (4) connected to front ends of the pair of left and right brake cables, and a traction member (3) connected to the equalizer. ) To the pair of left and right brake cables.

  According to this configuration, the pair of left and right brake cables can be pulled evenly.

  In the vehicle according to at least some embodiments of the present invention, in the above-described configuration, the equalizer and the traction member are arranged on a side of the electric parking brake actuator unit.

  According to this configuration, the length of the electric parking brake mechanism in the front-rear direction can be reduced.

  According to the present invention, it is possible to provide an electric parking brake actuator unit that can be installed in a small vehicle without affecting the structure and layout of other members such as a crushable space and a brake cable.

Schematic bottom view of a vehicle to which an actuator unit for an electric parking brake according to a first embodiment is attached. 1 is a perspective view of an electric parking brake actuator unit according to a first embodiment. FIG. 2 is a plan view of the electric parking brake actuator unit according to the first embodiment. Front view of the electric parking brake actuator unit according to the first embodiment Rear view of actuator unit for electric parking brake according to first embodiment Schematic bottom view of a vehicle equipped with an electric parking brake actuator unit according to a second embodiment Schematic bottom view of a vehicle equipped with an electric parking brake actuator unit according to a third embodiment Schematic bottom view of a vehicle equipped with an electric parking brake actuator unit according to a fourth embodiment

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The front-back, left-right, and up-down directions in the description correspond to the front-back, left-right, and up-down directions of the vehicle V, respectively.

  FIG. 1 is a bottom view showing a part of a vehicle V to which an actuator unit 1 for an electric parking brake according to the first embodiment is attached. The vehicle V includes a structure 2, an actuator unit 1 fixed to the structure 2, and a front end side connected to the actuator unit 1 via a traction rod 3 and an equalizer 4. It has a pair of left and right brake cables 5, 5 connected to a pair of brakes (not shown).

  The structure 2 includes a pair of left and right front side frames 2a, 2a, a first cross member 2b bridged between front ends of the pair of left and right front side frames 2a, 2a, and a pair of left and right front side frames 2a. , 2a, a pair of left and right bump pasties 2d, 2d extending from the front ends of the pair of left and right front side frames 2a, 2a, and a pair of left and right bump pasties. It has a bumper beam 2e spanned between the front ends, a side sill 2f disposed behind the second cross member 2c, and the like. The front side of the actuator unit 1 is fixed to the first cross member 2b, and the rear side is fixed to the second cross member 2c.

  Each of the brake cables 5 has an outer case 5a fixed to the structure 2 and an inner cable 5b slidably held in the outer case 5a (hereinafter, the description of pulling the brake cable 5 means the inner cable 5b). This means that the cable 5b is pulled so as to slide on the outer case 5a). The left and right ends of the equalizer 4 are pin-connected to the front ends of the pair of left and right inner cables 5b and 5b, and the center in the left-right direction of the equalizer 4 is pin-connected to the rear end of the traction rod 3. The traction rod 3 and the equalizer 4 are arranged on the right side of the actuator unit 1. The actuator unit 1 pulls the pair of left and right brake cables 5, 5 via the traction rod 3 and the equalizer 4 to brake the rear wheels, and releases the pair of left and right brake cables 5, 5. The braking of the rear wheels is released. Note that another traction member such as a cable may be used instead of the traction rod 3.

  2 to 5 show the actuator unit 1. FIG. The actuator unit 1 includes a holding member 6 to be fixed to the first and second cross members 2b and 2c, an actuator 7 held by the holding member 6, a rotatable support by the holding member 6, and a connecting member. It has a lever 9 connected to the actuator 7 via 8, and a plug 10 for electrically connecting the actuator 7 to a power supply (not shown) and an ECU (not shown).

  The holding member 6 holds the other members of the actuator unit 1 and is fixed to the first and second cross members 2b and 2c of the vehicle V, so that the other members are individually separated by the first and second cross members. This is a member whose main purpose is to eliminate the need to attach to the structure 2 such as 2b and 2c, and to facilitate the attachment of the actuator unit 1 to the structure 2. The holding member 6 includes a base 11 to be fixed to the first and second cross members 2b and 2c, and a first pipe 12 and a second pipe 13 connected to the base 11 so as to partially surround the actuator 7. , A base plate 11, a first pipe member 12 and a second pipe member 13, and a mounting plate 14 to which the actuator 7 is mounted.

  The base 11 has a plate shape substantially perpendicular to the left-right direction, and the front-rear direction is the longitudinal direction. The base 11 is reduced in weight by providing openings 15 at the front and rear, and an electric cable 16 connected to the plug 10 is inserted into the opening 15 at the front. Further, a first bracket 17 and a second bracket 18 are fixed to the front end side and the rear end side of the base portion 11 so as to extend obliquely right forward and obliquely rearward right. Each of the first bracket 17 and the second bracket 18 has a plate shape that is substantially perpendicular to the vertical direction. As shown in FIG. 1, the first bracket 17 is fastened to a third bracket 19 projecting rearward from the first cross member 2 b located in front of the actuator unit 1 by a fastener 20 (bolt and welded to the third bracket 19). Nut). The second bracket 18 is connected to a fourth bracket 21 projecting forward from a second cross member 2c located behind the actuator unit 1 together with a pair of left and right outer cases 5a, 5a. (Welded nut).

  FIG. 2 to FIG. 5 are referred to again. The first pipe member 12 is connected to the rear end and the lower end of the base 11 on the rear end side, and is connected to the middle and lower end of the base 11 in the front-rear direction on the front end side. Extends. In plan view, the section from the rear end to the front end of the first pipe member 12 in the base 11 and the first pipe member 12 generally have a trapezoidal shape in which the section of the base 11 has a long base. The second pipe member 13 is connected to the rear end and the upper end of the base 11 on the rear end side, overlaps the first pipe member 12 in plan view, and extends parallel to the horizontal plane up to the short bottom of the trapezoidal first pipe member 12. Then, it is bent downward by 90 ° and connected to the front end of the short base of the trapezoid of the first pipe member 12.

  The mounting plate 14 is disposed so as to be orthogonal to the front-rear direction, and has a rear wall 22 to which the actuator 7 is mounted, an upper wall 23 extending forward from an upper edge of the rear wall 22, and a right side inclined forward. And a front wall 24 extending downward from the front edge of the upper wall 23. The rear wall 22, the upper wall 23 and the front wall 24 are lightened by having openings 25, 26 and 27, respectively. The actuator 7 is inserted into the openings 25 and 27 of the rear wall 22 and the front wall 24, respectively. The rear wall 22 and the front wall 24 have a substantially rectangular frame shape, and the upper wall 23 has a trapezoidal frame shape having two right angles. The mounting plate 14 is formed by bending a single flat plate provided with openings 25, 26, and 27 at the boundary between the rear wall 22 and the upper wall 23 and at the boundary between the upper wall 23 and the front wall 24. . The right edges of the rear wall 22, the upper wall 23, and the front wall 24 are substantially in contact with the base 11. The upper left corner and the lower left corner of the rear wall 22 are in contact with the second pipe member 13 and the first pipe member 12, respectively. The left edge of the front wall 24 abuts on the front part of the second pipe member 13 extending in the up-down direction, and the lower edge of the front wall 24 abuts on the front part of the first pipe member 12 whose right end side is inclined forward. ing. The base 11, the first pipe member 12, the second pipe member 13, the mounting plate 14, the first bracket 17 and the second bracket 18 are fixed to each other by welding or the like. Since the first pipe member 12 and the second pipe member 13 are used, and the openings 15 and 26 are provided in the plate-like member, a binding band 28 for fixing the electric cable 16 is wound around the holding member 6. It is easier.

  The actuator 7 includes a case 29 fixed to the holding member 6 and an output member 30 protruding forward from a front portion of the case 29 and linearly moving back and forth with respect to the case 29. An electric motor (not shown) and a conversion mechanism (not shown) for converting the rotation of the electric motor into a linear motion of the output member 30 are provided inside the case 29. The case 29 is fixed to the mounting plate 14 and a mounting member 31 fixed to a rear portion (a rear leg in a trapezoid) of the first pipe member 12 by a fastener 20 such as a bolt. The attachment member 31 has a plate portion fixed to the first pipe member 12 and the attachment plate 14, and an attachment portion fixed to the plate and engaged with the fastener 20. The output member 30 is a rod-shaped member extending in the front-rear direction, and is inserted into the opening 27 of the front wall 24.

  The connecting member 8 is a member extending substantially in the front-rear direction. The connecting member 8 extends rearward from the intermediate portion, and a pair of rear connecting pieces 32, 32 facing each other in the vertical direction. It has a pair of front connection pieces 33, 33 facing vertically. The front end side of the output member 30 protrudes between the pair of rear connection pieces 32, 32, and the shaft member 34 extending vertically extends through the front end side of the output member 30 and the pair of rear connection pieces 32, 32. Accordingly, the connecting member 8 is pin-connected to the output member 30. Further, a first connecting portion 35 provided on the left end side of the lever 9 protrudes between the pair of front connecting pieces 33, 33, and a shaft member 34 extending in the vertical direction is connected to the first connecting portions 35, 1 The connecting member 8 is pin-connected to the lever 9 by penetrating the pair of front connecting pieces 33, 33. The output member 30 and the lever 9 are connected to each other via the connecting member 8, so that the deviation of the trajectory between the front end side of the output member 30 of the linear trajectory and the first connecting portion 35 of the lever 9 of the circular trajectory is connected. It is absorbed by the displacement of the member 8. Note that the output member 30 and the lever 9 may be directly pin-connected to each other without using the connecting member 8. In this case, a long hole (not shown) having a long diameter in the left-right direction is provided in the first connecting portion 35, and the shaft member 34 attached to the output member 30 is slidably and rotatably inserted through the long hole, It is desirable to absorb the orbital deviation.

  The lever 9 extends substantially in the left-right direction, and is supported by the holding member 6 so as to be rotatable around a vertical direction at a fulcrum portion 36 located at an intermediate position in the left-right direction. The holding member 6 has a pair of upper and lower support plates 37, 37 extending leftward from a portion of the base 11 that projects forward from the front wall 24. The lever 9 is inserted between the pair of upper and lower support plates 37, 37, and the shaft member 38 extending in the vertical direction penetrates the pair of upper and lower support plates 37, 37 and the fulcrum 36 of the lever 9. The lever 9 is pin-connected to the holding member 6. Further, an insertion hole 39 through which the lever 9 is inserted is provided in a plate-like portion of the base 11 protruding forward from the front wall 24. The front end and the rear end of the insertion hole 39 function as a stopper 40 and determine a rotatable range of the lever 9.

  When the actuator unit 1 is attached to the first and second cross members 2b and 2c, the second connecting portion 41 provided on the right end side of the lever 9 is pivoted about the front end of the towing rod 3 (see FIG. 1) and the vertical direction. It is rotatably pin-connected. In the present embodiment, when mounted on the vehicle V, the output member 30 and the towing rod 3 are offset from each other in the vertical position, that is, the position of the lever 9 in the rotation axis direction. Therefore, the lever 9 is constituted by a first lever piece 42 on the left end side and a second lever piece 43 on the right end side which are offset from each other in the rotation axis direction. The first lever piece 42 includes a first connecting portion 35 and a fulcrum portion 36. The second lever piece 43 is located below the first lever piece 42 and includes the fulcrum 36 and the second connecting part 41. The first lever piece 42 and the second lever piece 43 are rigidly connected to each other at the fulcrum 36.

  When the occupant operates a switch or the like provided in the cabin of the vehicle V, the electric parking brake operates. When braking a pair of left and right rear wheels, the output member 30 is operated so as to be displaced rearward. When the output member 30 is displaced rearward, the lever 9 rotates so as to pull the traction rod 3 forward. The towing rod 3 pulls the pair of left and right brake cables 5 forward through the equalizer 4 to brake the pair of left and right rear wheels. Thereafter, when the output member 30 is operated to be displaced forward, the lever 9 rotates in the reverse direction, the pulling of the traction rod 3 and the pair of left and right brakes is released, and the braking of the pair of right and left rear wheels is released. Is released.

  By having a link structure in which the output member 30 is connected to the traction rod 3 via the lever 9, the traction rod can be displaced in the opposite direction to the output member 30. Therefore, the actuator units 1 can be arranged not in front of the towing rod 3 and the equalizer 4 but in the upper, lower, left, and right directions. In other words, the actuator unit 1, the traction rod 3 and the equalizer 4 can be arranged behind the lever 9. Therefore, the degree of freedom of the layout of the actuator unit 1 is high, and even in a small car, the crushable space 44 (FIG. ), The actuator unit 1 can be arranged behind.

  Since the actuator 7 and the lever 9 are supported by the structure 2 via the holding member 6, the mounting of the actuator unit 1 to the vehicle V is easier than when the actuator 7 and the lever 9 are individually supported by the structure 2. It is easy and can be retrofitted.

  The base 11 of the holding member 6 is not directly fixed to the first and second cross members 2b and 2c, but is first and second through the first bracket 17 and the second bracket 18 extending laterally. It is fixed to the cross members 2b and 2c. That is, the base 11 is laterally offset from a fixing point of the first bracket 17 and the second bracket 18 with respect to the third bracket 19 and the fourth bracket 21. Therefore, when the space in which the actuator unit 1 is disposed beyond the crushable space 44 at the time of the collision of the vehicle V is collapsed, the first bracket 17 and the second bracket 18 are deformed or broken, or the base 11 is easily buckled. ing. Therefore, the actuator unit 1 hardly contributes to an increase in the rigidity of the vehicle V, and the space in which the actuator unit 1 is arranged is crushed at the time of a collision to absorb the energy of the collision. Such a mounting structure is suitable when there is a region behind the actuator unit 1 to be protected in the event of a collision, such as a vehicle compartment or a battery.

  Next, second to fourth embodiments will be described with reference to FIGS. In the description, configurations common to those of the other embodiments will be omitted from description and will be denoted by the same reference numerals. 6 to 8 are bottom views of the vehicle V to which the actuator unit 51 according to the second embodiment, the actuator unit 61 according to the third embodiment, and the actuator unit 71 according to the fourth embodiment are respectively mounted. .

  As shown in FIGS. 6 to 8, the actuator units 51, 61, 71 according to the second to fourth embodiments do not have the holding member 6 (see FIG. 1), unlike the actuator unit 1 of the first embodiment. . In the actuator units 51, 61, 71, the actuator 7 is fixed to the first and second cross members 2b, 2c via the bracket 52, and the levers 53, 62, 9 are connected to the first and second cross members 2b, 2c. Is rotatably supported by a bracket 54 fixed to the bracket 54. This is suitable when the installation space for the actuator units 51, 61, 71 is small. Further, since there is no holding member 6, even if the actuator units 51, 61, 71 are attached, they hardly contribute to an increase in the rigidity of the vehicle V. This is suitable when there is an area to be protected at the time of collision of a battery or the like.

  In the lever 9 according to the first embodiment, the ratio of the length from the first connection portion 35 to the fulcrum portion 36 and the length from the fulcrum portion 36 to the second connection portion 41 is approximately 1: 1. May be changed. For example, in the lever 53 according to the second embodiment shown in FIG. 6, the fulcrum portion 36 is provided between the first connection portion 35 and the second connection portion 41, and the length from the first connection portion 35 to the fulcrum portion 36 is provided. Is longer than the length from the fulcrum portion 36 to the second connecting portion 41, and can pull the brake cable 5 with a small output. In the lever 62 according to the third embodiment shown in FIG. 7, the first connection portion 35 and the second connection portion 41 are located on the same side with respect to the fulcrum portion 36, and from the fulcrum portion 36 to the first connection portion 35. Is longer than the length from the fulcrum portion 36 to the second connecting portion 41, and the brake cable 5 can be pulled with a small output.

  Further, the extending direction and the displacement direction of the output member 30 do not need to be the front-back direction, and need not be parallel to the extending direction and the displacement direction of the traction rod 3. For example, in the actuator unit 71 according to the fourth embodiment shown in FIG. 8, the towing rod 3 extends in the front-rear direction and is displaced in the front-rear direction. It extends obliquely toward it and is displaced in its extending direction. The actuator unit 71 according to the fourth embodiment is suitable when the length of the region where the actuator unit 71 is installed in the front-rear direction is shorter than that in the first embodiment.

  Although the description of the specific embodiments has been finished above, the present invention can be widely modified without being limited to the above embodiments. For example, the actuator units of the second to fourth embodiments may have a holding member. Also, even if the output member and the tow rod have different positions in the vertical direction, by tilting the lever up and down with respect to the left and right directions, the mutual position of the output member and the tow rod in the rotation axis direction is different. The lever may be constituted by one member having no step to eliminate the displacement. The length from the fulcrum to the first connection may be shorter than the length from the fulcrum to the second connection.

V: Vehicles 1, 51, 61, 71: Actuator unit 2: Structure (2a: Front side frame, 2b: First cross member, 2c: Second cross member, 2d: Bumpy stay, 2e: Bumper beam)
3: Towing rod (traction member)
4: Equalizer 5: Brake cable 6: Holding member 7: Actuator 9, 53, 62: Lever 11: Base 17: First bracket (first fixing portion)
18: Second bracket (second fixing portion)
29: case 30: output member 35: first connecting part 36: fulcrum part 40: stopper 41: second connecting part 42: first lever piece 43: second lever piece 44: crushable space

Claims (10)

A case to be fixed to a vehicle structure, and an actuator having an output member that moves linearly with respect to the case;
A fulcrum that is rotatable with respect to the structure, a first connecting part that is connected to the output member at a position different from the fulcrum, and a left and right one that is different from the fulcrum and the first connecting part. A lever having a second connecting portion to be connected to the pair of brake cables,
The actuator and the pair of left and right brake cables include the first connection portion and the second connection portion of the lever, and are located on the same side with respect to a plane parallel to a rotation axis of the fulcrum portion. An actuator unit for an electric parking brake, wherein the actuator unit is configured. Further comprising a holding member to be fixed to the structure,
The holding member fixes the case so that the case is fixed to the structure via the holding member,
The actuator unit for an electric parking brake according to claim 1, wherein the holding member rotatably supports the lever at the fulcrum.   The holding member includes a base configured to extend in the front-rear direction of the vehicle, and a first fixing unit that extends from front and rear of the base in a direction intersecting the front-rear direction and is fixed to the structure. The actuator unit for an electric parking brake according to claim 2, further comprising: a second fixing portion.   The first fixing portion extends from the base so as to move forward toward one side in the left-right direction, and the second fixing portion extends from the base portion so as to move rearward toward the one side. The actuator unit for an electric parking brake according to claim 3, wherein:   The actuator unit for an electric parking brake according to any one of claims 2 to 4, wherein the holding member has a stopper that limits displacement of the lever. The lever includes a first lever piece including the fulcrum part and the first connection part, and a second lever piece rigidly connected to the first lever piece at the fulcrum part including the fulcrum part and the second connection part. And having
The electric parking brake according to any one of claims 1 to 5, wherein the second lever piece is offset with respect to the first lever piece in a rotation axis direction of the fulcrum. Actuator unit. A vehicle equipped with the electric parking brake actuator unit according to any one of claims 1 to 6,
The structure includes a pair of left and right front side frames, a first cross member bridged between the pair of left and right front side frames, and a pair of front left and right front sides behind the first cross member. A second cross member spanned between the frames, a pair of left and right bump pasties extending from the front ends of the pair of left and right front side frames, and a bumper beam spanned between the front ends of the pair of left and right bump pasties. Has,
The vehicle, wherein the electric parking brake actuator unit is fixed to the first cross member and the second cross member.   The vehicle according to claim 7, wherein the actuator and the pair of left and right brake cables are disposed behind the lever.   The lever is connected to the pair of left and right brake cables via an equalizer connected to front ends of the pair of left and right brake cables and a traction member connected to the equalizer. Item 9. The vehicle according to Item 8.   The vehicle according to claim 9, wherein the equalizer and the traction member are arranged on a side of the electric parking brake actuator unit.

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