JP6476964B2 - Breather structure of vehicle - Google Patents

Description

  The present invention relates to a breather structure for a vehicle equipped with an electric parking brake device.

  In recent years, an electric parking brake device in which a vehicle parking brake device (parking brake) is electrified is becoming widespread. The parking brake device is a braking device provided as a separate system from a braking system using a brake pedal, and operates a wheel friction braking mechanism using a wire cable pulled by a passenger's manual operation. On the other hand, in the electric parking brake device, the wire cable is pulled by an electric motor (see Patent Document 1).

  The operating state of the electric motor is controlled in accordance with, for example, button operation, pedal operation, vehicle stop state, and the like. Thereby, an electric motor can be operated easily and a wheel can be locked. Further, if the tractive force generated by the electric motor is weakened, the lock of the wheel is released, so that it can be used instead of the depression operation of the brake pedal when starting on a slope. Note that the mounting position of the electric parking brake device is set mainly in the vehicle interior or the lower surface of the floor panel of the vehicle interior in consideration of waterproofness and dustproofness (see Patent Documents 2 and 3).

Japanese Unexamined Patent Publication No. 2000-211485 JP 2002-242968 A JP 2007-040442 A

  However, when the electric parking brake device is fixed to the lower surface of the floor panel, the operation sound and vibration are easily transmitted to the passenger compartment. In particular, recent electric parking brake devices have been developed that have a function of locking or unlocking a wheel by depressing an accelerator pedal or depressing a brake pedal. When such an electric parking brake device is used, the wheel may be frequently locked or released in a multi-story parking lot or a congested road. For this reason, there is a risk that the quietness of the passenger compartment is lowered by the operating sound and vibration of the electric parking brake device.

  In view of this, it has been studied to attach an electric parking brake device at a location away from the passenger compartment to enhance the quietness of the passenger compartment. As a specific mounting position of the electric parking brake device, for example, it may be set on a vehicle frame. However, since the vehicle frame is disposed at the lower part of the vehicle body, the electric parking brake device is easily flooded, and there is a problem that water easily enters the device. In other words, when the electric parking brake device is submerged under the surface of the water due to flooding of the river or heavy rain, water that has soaked into the wire cable may be sucked into the device and hinder the normal operation of the electric parking brake device. .

  For such a problem, it is conceivable to connect the breather hose to the electric parking brake device to maintain the internal pressure at the same pressure as the external air pressure and prevent moisture from entering the device. However, in this case, the route of the breather hose becomes long, and the possibility of deformation and breakage of the hose due to vibration of the vehicle body increases, and the cost increases due to an increase in the number of parts.

  The present case has been devised in view of the above-described problems, and an object thereof is to provide a breather structure capable of shortening the route of the breather hose while improving the traffic performance of the vehicle. It should be noted that the present invention is not limited to this purpose, and is an operational effect that is derived from each configuration shown in “Mode for Carrying Out the Invention” to be described later. Can be positioned as a purpose.

(1) A breather structure for a vehicle disclosed herein includes a first pipe for opening to the atmosphere that communicates the inside and outside of an electric parking brake device fixed to the lower portion of the vehicle. Moreover, it is formed in a shape that merges with the first pipe at the merging portion, and includes a second pipe for opening to the atmosphere that communicates the inside and outside of the differential device of the vehicle.
The atmospheric open end located upstream from the junction is disposed upward along the dash panel of the vehicle. In addition, at least one of the first pipe and the second pipe located on the downstream side of the merging portion has a hose that absorbs vibration.

The first pipe and the second pipe include metal pipes, resin pipes, rubber hoses, and the like. The “downstream side of the merging portion” means a section from the merging portion to the electric parking brake in the first pipe and a section from the merging portion to the differential device in the second pipe. Means. The hose is interposed in any one of these sections, or any one of these sections is formed by the hose.
The electric parking brake device is an electric parking brake device having a built-in motor for operating or releasing the parking brake of the vehicle in accordance with an occupant operation.

(2) It is preferable that the atmospheric open end is opened below a cowl top of the vehicle.
(3) It is preferable that the said electric parking brake apparatus is fixed to the outer side of the side member extended in the vehicle length direction (vehicle front-back direction) among frames.
It is preferable that the vehicle is a frame vehicle in which a body is placed on the frame via a mount.

(4) It is preferable that said 2nd piping is a breather piping of the front differential apparatus which transmits motive power to the front wheel of the said vehicle.
In this case, it is preferable that the electric parking brake device is disposed in the vicinity of the front differential device and behind the front wheel of the vehicle. For example, it is preferable to provide a damper device that is fixed to the side member and suppresses vibration of the frame. Further, it is preferable that the electric parking brake device is opposed to the damper device in a vehicle width direction.

According to the breather structure of the disclosed vehicle, the total piping path can be shortened by joining the electric parking brake device fixed to the lower portion of the vehicle and the breather piping of the differential device into one. As a result, it is possible to satisfy the breath function while suppressing deformation, breakage, and dropout of the piping due to vehicle body vibration and engine vibration, and it is possible to improve vehicle traffic performance. Further, since the route of the breather hose is simplified, the number of parts can be reduced and the cost can be reduced.
Further, by fixing the breather hose along the dash panel, the open end can be lifted to a relatively high position, and it is possible to easily avoid the entry of water from the breather hose. In addition to this, since the breather hose is not opened into the vehicle interior, the soundproofing of the vehicle interior can be enhanced and the waterproofness of the electric parking brake device can be enhanced.
Furthermore, since a hose that absorbs vibration is included in either the first piping or the second piping downstream from the junction, it is possible to absorb relative vibration between the electric parking brake device and the differential device. It is possible to more reliably suppress deformation, breakage, and dropout of the first pipe and the second pipe.

1 is an exploded perspective view of a vehicle to which a breather structure of an embodiment is applied. It is a top view which shows the flame | frame (under a floor panel) of the vehicle of FIG. It is a right view (A arrow view of FIG. 2) which shows an electric parking brake apparatus. It is a perspective view which shows the breather hose of an electric parking brake apparatus and a front differential apparatus.

  A vehicle breather structure as an embodiment will be described with reference to the drawings. The embodiment described below is merely an example, and there is no intention of excluding various modifications and technical applications that are not explicitly described in the following embodiment. Each configuration of the present embodiment can be implemented with various modifications without departing from the spirit of the present embodiment, and can be selected or combined as necessary.

[1. Constitution]
[1-1. flame]
FIG. 1 illustrates a vehicle 10 to which the breather structure of this embodiment is applied. The vehicle 10 is a frame vehicle in which a body 11 is placed on a frame 1 via a mount 4 and has a separate frame structure in which the frame 1 and the body 11 are separated. FIG. 1 schematically shows a state where the frame 1 and the body 11 are separated from each other by omitting the description of the power train device and the suspension device of the vehicle 10.

  The frame 1 is a structural member that forms a skeleton of the vehicle 10 and supports a load acting on the vehicle 10. A frame 1 shown in FIG. 1 is a ladder frame formed by connecting a pair of side members 2 and a plurality of cross members 3 in a ladder shape, and is arranged so that the vehicle length direction (vehicle longitudinal direction) is a longitudinal direction. The The side members 2 are members that extend in the vehicle length direction over substantially the entire length from the front end portion to the rear end portion of the vehicle 10, and are provided as a pair on the left and right sides with an interval in the vehicle width direction.

  The cross-sectional shape of the side member 2 is formed, for example, in a closed cross-sectional shape (circular, square, etc.) or a U-shape (groove shape, channel shape). The left and right side members 2 are arranged so as to have a substantially bilaterally symmetrical shape throughout the vehicle 10. The distance between the side members 2 is widened or narrowed in the vehicle width direction depending on the location according to the shape of the body 11 and the layout of various devices mounted on the vehicle 10. For example, as shown in FIG. 2, the side member 2 is formed with a narrow interval in the vicinity of the wheel house so as not to interfere with the front wheel 12. Further, in the vicinity of the rear wheel 13, it is formed in a shape curved upward so as to avoid the axle. Hereinafter, when the two side members 2 are distinguished from each other, they are referred to as a right side member 21 and a left side member 23, respectively.

  The cross member 3 is a member that connects the pair of side members 2 in the vehicle width direction, and a plurality of cross members 3 are provided at intervals in the vehicle length direction. The cross-sectional shape of the cross member 3 is formed in a closed cross-sectional shape or a U-shape like the side member 2. The vehicle 10 shown in FIG. 1 is provided with six cross members 3. Hereinafter, when these cross members 3 are distinguished, they are referred to as a first cross member 31, a second cross member 32,.

  As shown in FIG. 1, the first cross member 31 connects the left and right side members 2 at the front end of the vehicle 10. Further, the second cross member 32 and the third cross member 33 are arranged in front of and behind the axle of the front wheel 12. On the other hand, the fourth cross member 34 is disposed in the vicinity of the center portion in the vehicle length direction of the entire frame 1. Further, the fifth cross member 35 and the sixth cross member 36 are arranged in front of and behind the axle of the rear wheel 13.

  A body 11 is placed and supported on the frame 1 via a plurality of mounts 4. The mount 4 is a shock absorber that reduces vibrations and shocks transmitted to the body 11, and is, for example, a rubber mount or a viscous mount. Six mounting locations for the mount 4 are set for each of the right side member 21 and the left side member 23. In the example shown in FIG. 1, two places before and after the axle of the front wheel 12, two places before and after the axle of the rear wheel 13, one place below the passenger compartment 62, one place near the rear end of the side member 2. Placed in. Hereinafter, among the mounts 4 arranged immediately after the front wheels 12, the one fixed to the right side member 21 is called a first mount 41, and the one fixed to the left side member 23 is called a second mount 42.

[1-2. Various mounted products]
As shown in FIG. 2, the powertrain device of the vehicle 10 is disposed between the pair of side members 2. These powertrain devices are attached to the frame 1 of the vehicle 10 via mounts and elastic members. The engine 16 and the transmission 17 are disposed in front of the third cross member 33 and in the vicinity of the center in the vehicle width direction. A power transfer unit 25 is disposed behind the transmission 17. In the power transfer unit 25, the driving force generated by the engine 16 is distributed to the front wheels 12 and the rear wheels 13.

  A rear propeller shaft 18 is extended behind the power transfer unit 25, and a front propeller shaft 26 is extended forward. A rear end portion of the rear propeller shaft 18 is connected to a rear differential device 19 in the vicinity of the axle of the rear wheel 13. Similarly, the front end portion of the front propeller shaft 26 is connected to the front differential device 27 in the vicinity of the axle of the front wheel 12. These differential devices 19 and 27 are fixed to the frame 1 via a buffer mechanism such as a spring or a damper. Universal joints and sleeve yokes are interposed between the propeller shafts 18 and 26 and the differential devices 19 and 27.

  An exhaust system device 20 (an exhaust pipe, an exhaust catalyst device, a silencer, etc.) of the engine 16 is disposed on the right side of the rear propeller shaft 18. On the other hand, a fuel tank 15 of the engine 16 is disposed on the left side of the rear propeller shaft 18. The position of the fuel tank 15 is set within a range sandwiched between the fourth cross member 34 and the fifth cross member 35 in a top view. In the present embodiment, the fuel tank 15 is fixed to each of the fourth cross member 34, the fifth cross member 35, and the left side member 23. Further, a muffler is disposed on the right side of the fuel tank 15 with the rear propeller shaft 18 interposed therebetween.

  A dynamic damper 8 (damper device) for suppressing vibration of the frame 1 is attached to the outer surface 24 of the left side member 23. The dynamic damper 8 is disposed in the vicinity of the center portion where the amplitude of the frame 1 is likely to be relatively large (for example, between the third cross member 33 and the fourth cross member 34), and functions as a weight for suppressing the resonance of the frame 1. To do. The position of the dynamic damper 8 is set behind the second mount 42. That is, the second mount 42 is disposed between the dynamic damper 8 and the front wheel 12. Thereby, a stepping stone (chipping) from the front wheel 12 to the dynamic damper 8 is suppressed.

[1-3. Electric parking brake device]
The vehicle 10 is equipped with an electric parking brake device 5 (EPB, Electric Parking Brake) that electronically controls the operation and release of the parking brake. The electric parking brake device 5 is a braking device provided separately from a normal braking system using a brake pedal. For example, a friction braking mechanism (drum brake device, disc brake device, etc.) built in the rear wheel 13 is wired. Pulling with the cable 7 has a function of locking (constraining) the rotation of the rear wheel 13.

  The electric parking brake device 5 incorporates a battery-driven motor 6. The operating state of the motor 6 is controlled according to the operation of the occupant. For example, when the motor 6 is rotated forward, the wire cable 7 is pulled and the rear wheel 13 is locked. Further, when an operation for rotating the motor 6 in the reverse direction is performed, the traction force of the wire cable 7 is weakened and the lock of the rear wheel 13 is released. These operations are associated with, for example, a button operation, an accelerator pedal depression operation, a stop state of the vehicle 10, and the like.

  The traction force of the wire cable 7 transmitted to the left and right rear wheels 13 is evenly distributed by the equalizer 9 (distributor). The equalizer 9 is fixed to the side member 2 adjacent to the electric parking brake device 5 together with the electric parking brake device 5. Two wire cables 7 extending from the equalizer 9 are routed on the frame 1 and connected to each of the left and right rear wheels 13.

  The electric parking brake device 5 and the equalizer 9 of the present embodiment are fixed to the side surface of the side member 2 outside the vehicle below the floor panel 14 of the vehicle compartment 62. That is, as shown in FIG. 3, the electric parking brake device 5 and the equalizer 9 are fixed to the outer surface 22 of the right side member 21. The electric parking brake device 5 and the equalizer 9 are not in contact with the floor panel 14. Further, like the dynamic damper 8, the electric parking brake device 5 and the equalizer 9 are in the vicinity of the central portion where the amplitude of the frame 1 tends to be relatively large (for example, between the third cross member 33 and the fourth cross member 34). Placed in.

  That is, the electric parking brake device 5 and the equalizer 9 are disposed so as to face the dynamic damper 8 with the rear propeller shaft 18 interposed therebetween in a top view, and are opposed to the dynamic damper 8 in the vehicle width direction. Thereby, the electric parking brake device 5 and the equalizer 9 function as a weight that suppresses the resonance of the frame 1. Since the electric parking brake device 5 and the equalizer 9 are disposed outside the side member 2, the electric parking brake device 5 and the equalizer 9 do not overlap with the fuel tank 15 of the vehicle 10 when viewed in the vehicle length direction.

  The fixed positions of the electric parking brake device 5 and the equalizer 9 are set behind the first mount 41. That is, the first mount 41 is disposed between the electric parking brake device 5 and the equalizer 9 and the front wheel 12. As a result, as shown by the hatched area in FIG. 3, the stepping stones (chipping) from the front wheels 12 are less likely to collide with the electric parking brake device 5 and the equalizer 9, and the protection of the electric parking brake device 5 and the equalizer 9 is improved. To do.

[1-4. Breezer Horse]
The electric parking brake device 5 is connected to a breather hose that communicates the inside and the outside. In the example shown in FIG. 3, an emergency release cable 53 is connected between the manual release device 54 and the case main body 58 of the electric parking brake device 5 in which the motor 6 is built, and the breather hose 51 is connected from the manual release device 54. Is extended. The breather hose 51 and the emergency release cable 53 function as an atmosphere opening passage (first pipe) that communicates the inside and outside of the electric parking brake device 5.

  The manual release device 54 is a device for releasing the parking brake from the outside of the vehicle 10 in an emergency. The attachment position of the manual opening device 54 is set in the vicinity of the electric parking brake device 5 so that it can be easily accessed from the right side surface of the vehicle 10. Note that the wire cable 7 can be loosened and the rear wheel 13 can be unlocked by opening the lid of the sealed manual opening device 54 and pushing and pulling the emergency release cable 53.

  Both the breather hose 51 and the emergency release cable 53 are hoses covered with a water-resistant coating. One end of the breather hose 51 is opened inside the lid of the manual opening device 54, and the other end is opened in the engine room 61 of the vehicle 10. As shown in FIG. 3, the breather hose 51 is disposed along the outer surface 22 of the right side member 21 in the vehicle length direction below the floor panel 14 of the passenger compartment 62. Further, the front side of the breather hose 51 is disposed upward along the dash panel 28 (surface on the engine room 61 side) and is opened below the cowl top 29.

  The cowl top 29 is a planar member that is stretched in the vehicle width direction at the upper end portion of the dash panel 28 and has a shape that projects toward the engine room 61 ahead of the dash panel 28. The open end 55 of the breather hose 51 is disposed under the wing of the cowl top 29. Therefore, for example, even if rainwater enters the engine room 61 through the gap between the garnish 30 and the bonnet 57 through the windshield 56, the suction of water from the open end 55 is prevented. Alternatively, water splashing on the open end 55 at the time of river crossing is also prevented.

  As shown in FIG. 4, a breather hose 52 is connected to the front differential device 27 as an air release passage (second pipe) communicating between the inside and the outside. The breather hose 52 starts from the front differential device 27 and extends in the vehicle width direction along the axle of the front wheel 12, and then extends toward the rear of the vehicle along the right side member 21. Is arranged upward. Moreover, the breather hose 52 is connected so as to merge with the breather hose 51 of the electric parking brake device 5 in the vicinity of the surface of the dash panel 28. Accordingly, the open end 55 (atmospheric open end shared by merging) is also an air release port of the breather hose 52 and an air open port of the breather hose 51. The breather hoses 52 and 51 are fixed to the dash panel 28 at a plurality of locations including the junction 60.

  Here, of the entire passage for opening to the atmosphere, a section from the junction 60 to the electric parking brake device 5 is referred to as a first section, and a section from the junction 60 to the front differential device 27 is referred to as a second section. The section from the junction 60 to the open end 55 is called a third section. The breather structure in the present embodiment has a structure in which the first section, the second section, and the third section are connected to a trifurcated portion at the junction 60.

  The breather hoses 51 and 52 of the present embodiment are both rubber or soft resin hoses having elasticity to absorb vibrations, but are partially connected by piping materials (pipes) made of metal or hard resin. ing. The first section and the second section are mainly formed by a hose, and the third section is mainly formed by a pipe. Therefore, it has a structure capable of absorbing vehicle body vibration in both the first section and the second section. In addition, when using a pipe for a 1st area and a 2nd area, it is preferable to interpose a hose which absorbs a vibration at least in any one of a 1st area and a 2nd area. Alternatively, it is preferable to form at least one of the first section and the second section with a hose that absorbs vibration.

  Since the electric parking brake device 5 is fixed to the side member 2 of the vehicle 10, the electric parking brake device 5 can be displaced under the influence of vehicle body vibration. On the other hand, since the front differential device 27 is connected to the transmission 17 via the transfer device 25 and the front propeller shaft 26, it can be displaced by the influence of not only the vehicle body vibration but also the vibration of the engine 16. Such a difference in vibration characteristics is one of the factors that cause deformation, breakage, or dropout of the passage for opening to the atmosphere.

  However, by including a hose in at least one of the first section and the second section, such a difference in vibration characteristics is absorbed by the hose, and the electric parking brake device 5 and the front differential device 27 are Relative vibration is suppressed. Therefore, deformation, breakage, and dropout of the piping material in the first section and the second section are effectively suppressed.

[2. Action, effect]
(1) In the breather structure of the vehicle 10 described above, the breather hose 52 of the front differential device 27 and the breather hose 51 of the electric parking brake device 5 are provided so as to merge. On the other hand, both the front differential device 27 and the electric parking brake device 5 are fixed to the frame 1 of the vehicle 10 (that is, the side member 2 and the cross member 3).

  In this way, the breather hoses 51 and 52 of the apparatus fixed to the same frame 1 are merged and integrated to shorten the hose routing route, and the hose is deformed or broken due to vehicle body vibration or engine vibration. Can be suppressed. Accordingly, both the breather function of the front differential device 27 and the electric parking brake device 5 can be sufficiently satisfied, and the traffic performance of the vehicle 10 can be improved. Further, since the breather path is simplified, the number of parts can be reduced, and the cost can be reduced.

  The breather hose for opening to the atmosphere as described above is connected not only to the front differential device 27 and the electric parking brake device 5, but also to the transmission 17, the power transfer unit 25, and the like. However, since the transmission 17 and the power transfer unit 25 are arranged on the power transmission path of the engine 16, they are affected by the vibration of the engine 16. This is one of the reasons why the powertrain device is attached to the frame 1 via a mount and an elastic member. Therefore, if the breather hose of the transmission 17 and the power transfer unit 25 and the breather hose 51 of the electric parking brake device 5 are merged, the hose may be deformed or damaged due to a difference in vibration state. On the other hand, when the front differential device 27 fixed to the same frame 1 and the breather hoses 52 and 51 of the electric parking brake device 5 are joined, the occurrence of such a problem can be avoided.

(2) In the above breather structure, the breather hoses 52 and 51 are fixed along the dash panel 28 as shown in FIG. Thereby, the open end 55 can be lifted to a relatively high position, and entry of moisture from the open end 55 can be easily avoided.
The breather hoses 52 and 51 are disposed on the dash panel 28 on the engine room 61 side. That is, the floor panel 14 of the passenger compartment 62 does not need to be perforated with a through hole for opening to the atmosphere, so that the soundproofing and waterproofing properties of the passenger compartment 62 can be improved.

  (3) In the breather structure, at least one of the first section and the second section includes a hose that absorbs vibration. Thereby, the relative vibration between the electric parking brake device 5 and the front differential device 27 can be absorbed, and the breather hose 51, the breather hose 52, and the emergency release cable 53 are more reliably deformed, broken, or dropped. Can be suppressed.

  (4) In the above breather structure, the open ends 55 of the breather hoses 52 and 51 are opened below the cowl top 29 as shown in FIG. Thereby, even when water enters from the gap between the garnish 30 and the bonnet 57, it is possible to prevent water from being sucked into the open end 55 and splashed onto the open end 55.

  (5) The electric parking brake device 5 is fixed to the side member 2 separated from the body 11. Thereby, the distance between the electric parking brake device 5 and the front differential device 27 is shortened. Therefore, the path length of the breather hose 51 can be shortened as compared with the case where the electric parking brake device 5 is disposed inside the vehicle compartment 62. In addition, noise and vibration that can be caused by the operation of the electric parking brake device 5 are not easily transmitted to the body 11, and the soundproofing and vibrationproofing properties of the vehicle compartment 62 can be improved.

  In addition, since the vehicle compartment 62 is supported by the frame 1 via the mount 4, it is not necessary to insert vibration-proof rubber at the mounting location of the electric parking brake device 5 and the cost can be reduced. Furthermore, the vibration of the frame 1 can be suppressed by the mass of the electric parking brake device 5, and the stability and quietness against the vibration of the vehicle 10 can be enhanced.

  (6) In the above breather structure, the breather hose 52 of the front differential device 27 and the breather hose 51 of the electric parking brake device 5 are integrally connected. As shown in FIG. 2, the electric parking brake device 5 is disposed in the vicinity of the front differential device 27 and behind the front wheel 12 of the vehicle 10. Thereby, compared with the case where the breather hose of the rear differential device 19 and the breather hose 51 of the electric parking brake device 5 are connected integrally, for example, the hose length can be further shortened.

(7) The fixed position of the electric parking brake device 5 is set on the side surface (outer surface 22) of the side member 2 outside the vehicle. Thereby, inspection and maintenance of breather hose 51 and parts exchange become easy, and maintenance nature can be improved.
The electric parking brake device 5 is provided so as to face the dynamic damper 8 in the vehicle width direction, as shown in FIG. Thereby, the vibration of the frame 1 in the vehicle length direction can be efficiently suppressed, and the silence and the vehicle body stability against the vibration of the vehicle 10 can be improved. Therefore, the deformation and breakage of the breather hoses 51 and 52 can be more effectively suppressed.

[3. Modified example]
Regardless of the embodiment described above, various modifications can be made without departing from the spirit of the invention. Each structure of this embodiment can be selected as needed, or may be combined appropriately.
In the above-described embodiment, the breather structure of the vehicle 10 to which the ladder-type ladder frame is applied has been described in detail. However, other frames can be applied to the vehicle 10. For example, a perimeter frame (a frame arranged so as to surround the outer periphery of the vehicle) or a truss frame (a truss structure frame having a triangular frame as a basic shape) can be applied.

  Further, the breather structure described above can be applied not only to a frame vehicle in which the body 11 is placed on the frame 1 via the mount 4 but also to an unseparated frame vehicle and a monocoque vehicle. If the vehicle 10 has at least the differential device (the front differential device 27 or the rear differential device 19) and the electric parking brake device 5 fixed to the frame 1, the above-described embodiment is applied by applying the above breather structure. You can get the same effect.

  In the above-described embodiment, the breather hose 52 of the front differential device 27 and the breather hose 51 of the electric parking brake device 5 are joined, but the breather hose of the rear differential device 19 is joined instead of the front differential device 27. You may let them. In this case, if these breather hoses are merged in the vicinity of the electric parking brake device 5 and extended to the front of the dash panel 28, the open end 55 is disposed below the cowl top 29 as in the above-described embodiment. Can do.

5 Electric parking brake device 10 Vehicle 27 Front differential device 28 Dash panel 29 Cowl top 51 Breather hose (first piping)
52 Breather hose (second piping)
53 Emergency release cable (first piping)
55 Open end 60 Junction

Claims (4)

A first pipe for opening to the atmosphere communicating between the inside and outside of the electric parking brake device fixed to the lower part of the vehicle;
Formed into a shape that merges with the first piping at the merging portion, and includes a second piping for opening to the atmosphere that communicates the inside and outside of the differential device of the vehicle,
An atmospheric open end located upstream from the junction is disposed upward along the dash panel of the vehicle,
A breather structure for a vehicle, wherein at least one of the first pipe and the second pipe located downstream of the merging portion has a hose that absorbs vibration. 2. The breather structure for a vehicle according to claim 1, wherein the open end portion of the atmosphere is opened below a cowl top of the vehicle. The vehicle breather structure according to claim 1 or 2, wherein the electric parking brake device is fixed to the outside of a side member extending in the vehicle length direction of the frame. The vehicle breather structure according to any one of claims 1 to 3, wherein the second pipe is a breather pipe of a front differential device that transmits power to a front wheel of the vehicle.

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