JP2019031253A - Exhaust pipe structure of parking brake device and exhaust pipe of parking brake device - Google Patents

Abstract

To prevent interference between an exhaust pipe and other components located below a floor panel and prevent damage of the exhaust pipe located above the floor panel.SOLUTION: An exhaust pipe 10 of a parking brake device integrally has a floor insertion part 22 which is inserted into a floor insertion hole of a floor panel 15 to be protected by a grommet 4 and an upper area 23 which continues from the floor insertion part 22, extends upward, and is connected to a control valve 11. A protector 16 is a cylindrical body, and the upper area 23 of the exhaust pipe 10 is inserted into a through hole of the protector 16. An inner peripheral surface 25 of the through hole of the protector 16 and an outer peripheral surface 27 of the upper area 23 of the exhaust pipe 10 are brought into close contact with each other. A lower end 16b of the protector 16 is brought into contact with an upper surface of the grommet 4 which is located at an upper surface 15a side of the floor panel 15.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an exhaust pipe structure of a parking brake device using compressed air and an exhaust pipe of the parking brake device.

  Patent Document 1 discloses a parking brake device configured such that compressed air is supplied to and discharged from a brake chamber when a driver releases or operates a control valve attached to the upper surface of a floor panel of a driver's seat. Have been described. The floor panel is formed with a through hole facing the control exhaust port of the control valve. An exhaust pipe is attached to the control exhaust port of the control valve, and the exhaust pipe extends through the floor panel through the floor panel.

JP 2005-104190 A

  In the parking brake device described in Patent Document 1, the exhaust pipe (exhaust pipe) extends to the lower side of the floor panel, so that the exhaust pipe may interfere with other components arranged below the floor panel. . To prevent interference between the exhaust pipe and other parts below the floor panel, slide the exhaust pipe upward with respect to the through hole in the floor panel, and the exhaust pipe will be exposed above the floor panel. Therefore, a portion of the exhaust pipe exposed above the floor panel may come into contact with a part above the floor panel, and the exhaust pipe may be damaged.

  Accordingly, the present invention provides an exhaust pipe structure of a parking brake device that can prevent interference between the exhaust pipe and other parts below the floor panel and prevent the exhaust pipe from being damaged above the floor panel. And an exhaust pipe of a parking brake device.

  In order to solve the above-described problem, a first aspect of the present invention is a parking system that operates a control valve disposed above a floor panel of a vehicle to supply and discharge air to and from a brake chamber to release or operate a parking brake. An exhaust pipe structure connected to the control valve of the brake device and capable of discharging air from the control valve side to the lower side of the floor panel, and includes an exhaust pipe and a cylindrical protector. The exhaust pipe has an insertion portion that passes through a floor through hole formed in the floor panel, and an upper region that continuously extends from the insertion portion and is connected to the control valve. It can be discharged below the floor panel. The cylindrical protector is disposed above the floor panel, and at least a part of the upper region of the exhaust pipe is inserted. The outer diameter of the protector is larger than the outer diameter of the exhaust pipe insertion portion. The lower end of the protector contacts the upper surface side of the floor panel. The outer peripheral surface of the upper region of the exhaust pipe and the inner peripheral surface of the protector are in contact with each other.

  In the above configuration, since the outer peripheral surface of the upper region of the exhaust pipe and the inner peripheral surface of the protector are in contact with each other, the relative movement of the exhaust pipe and the protector can be suppressed by the frictional force. Further, the outer diameter of the protector is larger than the outer diameter of the insertion portion of the exhaust pipe, and the lower end of the protector is in contact with the upper surface side of the floor panel, so that the movement of the exhaust pipe downward with respect to the floor through hole can be suppressed. . For this reason, since the downward movement of the lower end of the exhaust pipe can be restricted to a predetermined height position, interference between the lower end of the exhaust pipe and other parts below the predetermined height position is prevented. can do.

  Moreover, the cylindrical protector with which at least one part of the upper area | region of an exhaust pipe is inserted is provided. That is, since at least a part of the upper region of the exhaust pipe is protected by the protector, the upper region of the exhaust pipe can be prevented from being damaged.

  A second aspect of the present invention is the exhaust pipe structure of the parking brake device according to the first aspect, wherein an upper region of the exhaust pipe and a protector are curved from the floor panel side and extend in a direction crossing the vertical direction. .

  In the above configuration, the upper region of the exhaust pipe and the protector are curved from the floor panel side and extend in a direction crossing the vertical direction. For this reason, when a force that moves the lower end of the exhaust pipe downward acts, the lower surface side of the outer peripheral surface of the upper area of the exhaust pipe is pressed against the inner peripheral surface of the protector above the floor panel. The movement of the exhaust pipe can be further suppressed. For this reason, the movement of the exhaust pipe downward with respect to the floor through hole can be further suppressed, and interference between the exhaust pipe and other parts below the floor panel can be prevented.

  According to a third aspect of the present invention, a control valve disposed above a vehicle floor panel is operated to supply and discharge air to and from a brake chamber, and connected to a control valve of a parking brake device that releases or activates a parking brake. The exhaust pipe is capable of discharging air from the control valve side to the lower side of the floor panel, and includes an insertion portion and an upper region. The insertion part is inserted through a floor through hole formed in the floor panel. The upper region is formed thicker than the insertion portion and has a thick portion that continuously extends upward from the insertion portion, and is disposed above the floor panel and connected to the control valve. The outer diameter of the thick part in the upper region is larger than the outer diameter of the insertion part. The lower end of the thick part of the upper region is in contact with the upper surface side of the floor panel.

  In the above configuration, the outer diameter of the thick portion of the upper region of the exhaust pipe is larger than the outer diameter of the insertion portion, and the lower end of the thick portion of the upper region is in contact with the upper surface side of the floor panel. The movement of the exhaust pipe can be restricted by contact between the lower end of the thick wall portion and the upper surface side of the floor panel. For this reason, since the downward movement of the lower end of the exhaust pipe can be restricted to a predetermined height position, interference between the lower end of the exhaust pipe and other parts below the predetermined height position is prevented. can do.

  Moreover, since the thick part of the upper region of the exhaust pipe is formed thicker than the insertion part, it is possible to prevent the exhaust pipe from being damaged above the floor panel.

  According to the present invention, interference between the exhaust pipe and other parts below the floor panel can be prevented, and damage to the exhaust pipe above the floor panel can be prevented.

It is the schematic of a vehicle provided with a parking brake device. It is a schematic sectional drawing of the principal part of the exhaust pipe structure of the parking brake apparatus which concerns on 1st Embodiment of this invention. It is a perspective view from the upper part of the principal part of the exhaust pipe structure of a parking brake apparatus. It is a schematic sectional drawing of the principal part of the exhaust pipe of the parking brake apparatus which concerns on 2nd Embodiment of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction.

  As shown in FIG. 1, the exhaust pipe structure according to the present embodiment supplies and discharges compressed air to and from the air supply / discharge chamber 12a of the brake chamber 12 when the occupant operates the control valve 11 for parking brake. The present invention is applied to the exhaust pipe 10 of the wheel park type parking brake device 7 for releasing or operating the brake. The control valve 11 has an operation lever 11 a that is operated by an occupant, and is disposed above the floor panel 15 that defines the lower part of the passenger compartment 2 of the vehicle 1. The operation lever 11a is exposed in the passenger compartment 2. Below the floor panel 15, the engine 5 and connecting parts (other parts) 6 (see FIG. 2) connected to the engine 5 are arranged.

  When the occupant operates the operation lever 11a to release the control valve 11, compressed air is supplied from the air tank 13 to the air supply / discharge chamber 12a of the brake chamber 12, the parking brake is released, and the rear wheel 3 is allowed to rotate. The When the occupant operates the control lever 11a to operate the control valve 11, compressed air is discharged from the air supply / discharge chamber 12a of the brake chamber 12, the parking brake is activated, and the rotation of the rear wheel 3 is prohibited. The compressed air discharged from the air supply / discharge chamber 12a of the brake chamber 12 when the parking brake is operated is discharged from the control valve 11 side to the lower side of the floor panel 15 through the exhaust pipe 10 connected to the control valve 11.

  As shown in FIGS. 2 and 3, the floor panel 15 is formed with a floor through hole 17 that penetrates the floor panel 15 up and down and communicates the upper and lower sides of the floor panel 15. The grommet 4 is attached to the floor through hole 17. A bracket 18 is fixed to the upper surface 15 a side of the floor panel 15, and the control valve 11 and the cover 19 are fixed to the bracket 18. The control valve 11 is disposed in front of the floor through hole 17. The cover 19 covers the periphery of the control valve 11, the exhaust pipe 10, a protector 16 described later, and the floor through hole 17 from above. A storage portion 20 that is recessed downward is formed on the upper surface side of the cover 19. In the present embodiment, the storage portion 20 that is recessed downward is provided on the upper surface side of the cover 19, but the shape of the cover 19 is not limited to this.

  The exhaust pipe structure of the parking brake device 7 has an exhaust pipe 10 for discharging compressed air discharged from the air supply / discharge chamber 12a of the brake chamber 12 to the lower side of the floor panel 15 when the parking brake is operated. And a protector 16 for protecting the exhaust pipe 10.

  The exhaust pipe 10 is inserted through the floor through hole 17 of the floor panel 15, one end 10 a is connected to the control valve 11 above the floor panel 15, and the other end (lower end) 10 b is a space 21 below the floor panel 15. Placed in. The exhaust pipe 10 has a floor insertion part (insertion part) 22 that is inserted through the floor through hole 17 and protected by the grommet 4, and an upper region that extends continuously upward from the floor insertion part 22 and is connected to the control valve 11. 23 and a lower region 24 that extends continuously downward from the floor insertion portion 22 in a substantially vertical direction. The lower end 10 b of the exhaust pipe 10 (the lower end 10 b of the lower region 24) is disposed at a position sufficiently spaced upward from the connection component 6 connected to the engine 5 below the floor panel 15. The upper region 23 of the exhaust pipe 10 is curved from the floor insertion part 22 side and extends forward. The inner diameter of the exhaust pipe 10 is formed to be substantially the same from one end 10a to the other end 10b. Further, the outer diameter of the exhaust pipe 10 is large enough to be inserted through the floor through hole 17 and is formed to have substantially the same diameter from one end 10a to the other end 10b.

  The protector 16 is a cylindrical body having an inner diameter that is slightly larger than the outer diameter of the exhaust pipe 10 and an outer diameter that is larger than the outer diameter of the exhaust pipe 10, and penetrates from the one end 16a to the other end 16b. It has a hole (not shown). The upper region 23 of the exhaust pipe 10 is inserted into the through hole of the protector 16. In a state where the upper region 23 of the exhaust pipe 10 is inserted through the through hole of the protector 16, the inner peripheral surface 25 of the through hole of the protector 16 and the outer peripheral surface 27 of the upper region 23 of the exhaust pipe 10 are in close contact with each other. And the relative movement of the protector 16 is suppressed. When the protector 16 is attached to the upper region 23 of the exhaust pipe 10, the exhaust pipe 10 that is linearly extended is inserted into the through hole of the protector 16 that is linearly extended. Then, the exhaust pipe 10 and the protector 16 are bent while the protector 16 is attached to the upper region 23 of the exhaust pipe 10. That is, the protector 16 is curved from the floor insertion part 22 side and extends forward together with the exhaust pipe 10. The other end (lower end) 16 b of the protector 16 is in contact with the upper surface of the grommet 4 on the upper surface 15 a side of the floor panel 15. The protector 16 is attached to the exhaust pipe 10 in a state where the lower end 16b of the protector 16 is in contact with the upper surface 15a side of the floor panel 15 and the lower end 10b of the exhaust pipe 10 is connected to the engine 5 below the floor panel 15. It is set so as to be disposed at a position sufficiently spaced upward from the connection component 6. The protector 16 covers a part of the upper region 23 of the exhaust pipe 10 on the floor insertion portion 22 side, and the one end 10 a side of the exhaust pipe 10 is exposed forward from the one end 16 a of the protector 16. That is, the protector 16 is attached to at least a region of the upper region 23 of the exhaust pipe 10 that continues upward from at least the upper surface 15 a side of the floor panel 15. The protector 16 covers a region 26 close to the inner surface of the cover 19 (in this embodiment, the lower surface of the storage unit 20) in the upper region 23 of the exhaust pipe 10, and prevents the region 26 and the cover 19 from contacting each other. The exhaust pipe 10 is protected.

  In the exhaust pipe structure of the parking brake device 7 configured as described above, the inner peripheral surface 25 of the through hole of the protector 16 and the outer peripheral surface 27 of the upper region 23 of the exhaust pipe 10 are in contact with each other, and the exhaust pipe 10 and the protector 16 are in contact. Relative movement is restricted. Further, the lower end 16 b of the protector 16 is in contact with the upper surface of the grommet 4 on the upper surface 15 a side of the floor panel 15. For this reason, the downward movement of the exhaust pipe 10 with respect to the floor through hole 17 can be restricted, and the downward movement of the lower end 10b of the exhaust pipe 10 can be restricted to a predetermined height position. Interference between the lower end 10b of the pipe 10 and the connection component 6 connected to the engine 5 below the predetermined height position can be prevented.

  Further, since the protector 16 is curved from the floor insertion portion 22 side and extends forward together with the exhaust pipe 10, when a force that moves the lower end 10 b of the exhaust pipe 10 downward is applied, the protector 16 is disposed above the floor panel 15. The lower surface side of the outer peripheral surface 27 of the upper region 23 is pressed against the inner peripheral surface 25 of the protector 16. For this reason, the movement of the exhaust pipe 10 downward with respect to the floor through-hole 17 can be effectively suppressed, and the connection connected to the lower end 10b of the exhaust pipe 10 and the engine 5 below the predetermined height position. Interference with the component 6 can be prevented.

  Moreover, since the protector 16 is attached to the upper region 23 of the exhaust pipe 10, damage to the upper region 23 of the exhaust pipe 10 can be prevented. For example, the protector 16 covers the region 26 close to the inner surface of the cover 19 in the upper region 23 of the exhaust pipe 10, prevents contact between the region 26 and the cover 19, and protects the exhaust pipe 10. Ten upper regions 23 can be prevented from being damaged.

  Therefore, according to the present embodiment, interference between the exhaust pipe 10 and the connecting component 6 connected to the engine 5 below the floor panel 15 is prevented, and damage to the exhaust pipe 10 above the floor panel 15 is prevented. can do.

  In the present embodiment, the upper region 23 and the protector 16 of the exhaust pipe 10 are curved, but the upper region 23 and the protector 16 of the exhaust pipe 10 may not be curved.

  Further, in the present embodiment, the inner peripheral surface 25 of the protector 16 and the outer peripheral surface 27 of the exhaust pipe 10 are brought into close contact with each other in a state where the upper region 23 of the exhaust pipe 10 is inserted into the through hole of the protector 16. Although the relative movement of 10 and the protector 16 was suppressed, it is not limited to this. For example, the upper region 23 of the exhaust pipe 10 and the protector 16 may be fixed to each other, and the relative movement between the upper region 23 of the exhaust pipe 10 and the protector 16 may be restricted.

  In this embodiment, since the control valve 11 is disposed in front of the floor through hole 17, the upper region 23 of the exhaust pipe 10 and the protector 16 are curved from the floor insertion portion 22 side and extended forward. The direction in which the upper region 23 of the exhaust pipe 10 and the protector 16 are curved is not limited to this, and is determined according to the positional relationship between the control valve 11 and the floor through hole 17.

  Moreover, in this embodiment, although the internal diameter and the outer diameter of the exhaust pipe 10 were formed in the substantially same diameter ranging from the one end 10a to the other end 10b, it is not limited to this.

  Further, in the present embodiment, the exhaust pipe 10 that is linearly extended is inserted into the through hole of the protector 16 that is linearly extended, and the protector 16 is attached to the upper region 23 of the exhaust pipe 10. Although the exhaust pipe 10 and the protector 16 are curved, the curved upper region 23 of the exhaust pipe 10 may be inserted into the through hole of the curved protector 16.

  Further, in this embodiment, the lower end 16b of the protector 16 is brought into contact with the upper surface of the grommet 4 on the upper surface 15a side of the floor panel 15. However, when the grommet 4 is not attached, the protector is placed on the upper surface 15a of the floor panel 15. The lower end 16b of 16 may be brought into direct contact. That is, contacting the lower end 16b of the protector 16 with the upper surface 15a of the floor panel 15 means directly contacting the upper surface 15a of the floor panel 15 and placing other parts between the upper surface 15a of the floor panel 15. In contact with the upper surface side of the other component in the intervened state.

  In the present embodiment, a part of the upper region 23 of the exhaust pipe 10 on the floor insertion portion 22 side is covered by the protector 16, and the one end 10 a side of the exhaust pipe 10 is exposed from the one end 16 a of the protector 16. However, the present invention is not limited to this, and the entire upper region 23 of the exhaust pipe 10 may be covered with the protector 16.

  In the present embodiment, the protector 16 is disposed between the upper region 23 of the exhaust pipe 10 and the cover 19, and the upper region 23 of the exhaust pipe 10 is protected from the cover 19 by the protector 16, but is not limited thereto. The protector 16 is arranged between the edge of other parts other than the cover 19 disposed in the cover 19 and the upper region 23 of the exhaust pipe 10, and the upper region 23 of the exhaust pipe 10 is disposed by the protector 16. You may protect from an edge etc.

  Next, 2nd Embodiment of this invention is described based on drawing. The parking brake device 7 of the present embodiment is different from the first embodiment in that the shape of the exhaust pipe 41 and the protector 16 are not provided. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 4, the parking brake device 7 has an exhaust pipe 41 connected to the control valve 11 and capable of discharging compressed air from the control valve 11 side to the lower side of the floor panel 15.

  The exhaust pipe 41 is inserted through the floor through hole 17 of the floor panel 15, one end 41 a is connected to the control valve 11 above the floor panel 15, and the other end (lower end) 41 b is a space 21 below the floor panel 15. Placed in. The exhaust pipe 41 is inserted into the floor through-hole 17 to be protected by the grommet 4, and a floor insertion portion (insertion portion) 42, and an upper region continuously extending from the floor insertion portion 42 and connected to the control valve 11. 43 and a lower region 44 that continuously extends downward from the floor insertion portion 42 and extends linearly along a substantially vertical direction. The lower end 41b of the exhaust pipe 41 (the lower end 41b of the lower region 44) is disposed at a position sufficiently spaced upward from the connection component 6 connected to the engine 5 below the floor panel 15. The upper region 43 of the exhaust pipe 41 is curved from the floor insertion part 42 side and extends forward. The inner diameter of the exhaust pipe 41 is formed to be substantially the same from one end 41a to the other end 41b. The outer diameters of the floor insertion portion 42 and the lower region 44 of the exhaust pipe 41 are formed so as to be able to be inserted through the floor through hole 17. The upper region 43 of the exhaust pipe 41 includes a thick portion 45 having an outer diameter larger than the outer diameter of the floor insertion portion 42 and a thin portion 46 having a size substantially the same as the outer diameter of the floor insertion portion 42. The thick portion 45 is formed thicker than other regions of the exhaust pipe 41 (the lower region 44, the floor insertion portion 42, and the thin portion 46), and continuously extends upward from the floor insertion portion 42. The lower end 47 of the thick portion 45 is in contact with the upper surface of the grommet 4 on the upper surface 15a side of the floor panel 15. The thick portion 45 has a region 48 in the upper region 43 of the exhaust pipe 41 that is close to the inner surface of the cover 19 (in this embodiment, the lower surface of the storage unit 20). The thin portion 46 extends continuously from the upper end of the thick portion 45 and is connected to the control valve 11.

  In the exhaust pipe 41 of the parking brake device 7 configured as described above, the lower end 47 of the thick portion 45 of the upper region 43 abuts on the upper surface of the grommet 4 on the upper surface 15a side of the floor panel 15, so that the floor through hole 17 The downward movement of the exhaust pipe 41 can be restricted by the contact between the lower end 47 of the thick portion 45 and the upper surface 15a side of the floor panel 15. For this reason, since the downward movement of the lower end 41b of the exhaust pipe 41 can be restricted to a predetermined height position, the lower end 41b of the exhaust pipe 41 is connected to the engine 5 below the predetermined height position. Interference with the connected component 6 can be prevented.

  Moreover, since the thick part 45 is formed thicker than the other area | region (the lower area | region 44, the floor insertion part 42, and the thin part 46) of the exhaust pipe 41, the part in the upper part of the floor panel 15 is equivalent to it. Damage to the exhaust pipe 41 can be prevented. For example, since the thick portion 45 has a region 48 that is close to the inner surface of the cover 19 in the upper region 43 of the exhaust pipe 41, when the upper region 43 of the exhaust pipe 41 and the cover 19 are in contact, The region 48 of the thick portion 45 of the upper region 43 of the exhaust pipe 41 is brought into contact. In this way, the portion with which the cover 19 may come into contact is formed thicker than the other areas of the exhaust pipe 41, so that the exhaust pipe 41 is protected and the upper region 43 of the exhaust pipe 41 is protected. Breakage can be prevented.

  Therefore, according to the present embodiment, interference between the exhaust pipe 41 and the connection component 6 connected to the engine 5 below the floor panel 15 is prevented, and damage to the exhaust pipe 41 above the floor panel 15 is prevented. can do.

  In the present embodiment, the upper region 43 of the exhaust pipe 41 is curved, but the upper region 43 of the exhaust pipe 41 may not be curved.

  In this embodiment, since the control valve 11 is disposed in front of the floor through hole 17, the upper region 43 of the exhaust pipe 41 is curved from the floor insertion part 42 side and extended forward. The direction in which the upper region 43 is curved is not limited to this, and is determined according to the positional relationship between the control valve 11 and the floor through hole 17.

  Further, in this embodiment, the lower end 47 of the thick portion 45 of the exhaust pipe 41 is brought into contact with the upper surface of the grommet 4 on the upper surface 15a side of the floor panel 15, but when the grommet 4 is not attached, the floor panel Alternatively, the lower end 47 of the thick portion 45 may be brought into direct contact with the upper surface 15a of the fifteen. That is, contacting the lower end 47 of the thick wall portion 45 with the upper surface 15a of the floor panel 15 means directly contacting the upper surface 15a of the floor panel 15 and other surfaces between the upper surface 15a of the floor panel 15. Abutting on the upper surface side of the other component with the component interposed.

  In this embodiment, the thick portion 45 and the thin portion 46 are provided in the upper region 43 of the exhaust pipe 41. However, the entire region of the upper region 43 of the exhaust pipe 41 is thick without providing the thin portion 46. The unit 45 may be used.

  In the present embodiment, the upper region 43 of the exhaust pipe 41 is protected from the cover 19, but the present invention is not limited to this, and the upper region 43 of the exhaust pipe 41 is other than the cover 19 disposed in the cover 19. You may protect by the thick part 45 from the edge etc. of another component.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  For example, in the first embodiment and the second embodiment, the lower areas 24 and 44 are provided in the exhaust pipes 10 and 41, and the lower ends 10b and 41b of the exhaust pipes 10 and 41 are disposed below the floor panel 15. The lower ends 10 b and 41 b of the exhaust pipes 10 and 41 may be arranged at the same height as the lower surface of the floor panel 15 without providing the lower regions 24 and 44 in the exhaust pipes 10 and 41.

  Further, other parts below the floor panel 15 are not limited to the connection parts 6 connected to the engine 5.

1: Vehicle 7: Parking brake device 10, 41: Exhaust pipe 11: Control valve 12: Brake chamber 15: Floor panel 15a: Upper surface of floor panel 16: Protector 16b: Lower end of protector 17: Floor through holes 22, 42: Floor Insertion part (insertion part)
23, 43: Upper region 25: Inner peripheral surface 27 of the protector: Outer peripheral surface 45 of the upper region 45: Thick portion 47: Lower end of the thick portion

Claims (3)

The control valve disposed above the vehicle floor panel is operated to supply / discharge air to / from the brake chamber, and is connected to the control valve of the parking brake device for releasing or operating the parking brake. An exhaust pipe structure capable of discharging air below the floor panel;
An insertion portion for inserting a floor through hole formed in the floor panel; and an upper region extending continuously upward from the insertion portion and connected to the control valve. An exhaust pipe that can be discharged downward of the floor panel;
A cylindrical protector disposed above the floor panel and into which at least a part of the upper region of the exhaust pipe is inserted;
The outer diameter of the protector is larger than the outer diameter of the insertion portion of the exhaust pipe,
The lower end of the protector contacts the upper surface side of the floor panel,
An exhaust pipe structure of a parking brake device, wherein an outer peripheral surface of the upper region of the exhaust pipe and an inner peripheral surface of the protector are in contact with each other. The exhaust pipe structure of the parking brake device according to claim 1,
The exhaust pipe structure of a parking brake device, wherein the upper region of the exhaust pipe and the protector are curved from the floor panel side and extend in a direction crossing the vertical direction. The control valve disposed above the vehicle floor panel is operated to supply / discharge air to / from the brake chamber, and is connected to the control valve of the parking brake device for releasing or operating the parking brake. An exhaust pipe capable of exhausting air below the floor panel,
An insertion part for inserting a floor through hole formed in the floor panel;
An upper region that is formed thicker than the insertion portion and has a thick portion that continuously extends upward from the insertion portion, and is disposed above the floor panel and connected to the control valve; Prepared,
The outer diameter of the thick part of the upper region is larger than the outer diameter of the insertion part,
An exhaust pipe of a parking brake device, wherein a lower end of the thick part of the upper region is in contact with an upper surface side of the floor panel.

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