JP6468483B2 - Fluid pressure feed tube connection structure - Google Patents

Description

  In order to pressure-feed a fluid from one of two spaces partitioned by a vehicle body panel to the other, the present invention arranges two fluid pressure-feeding tubes through which the fluid circulates in the two spaces and connects the two. Connection structure.

  In Patent Document 1, a power harness connector that is pulled out of an engine room through a dash panel is fixed to a dash side panel of the dash panel via a bracket, and the body harness connector is connected to the power harness connector. The structure which connects both by inserting in is described. Further, a state in which the bracket is supported in a cantilever manner on the dash side panel is illustrated.

Japanese Utility Model Publication No. 63-152749

  In the structure described in Patent Document 1, after the power harness is passed from one of the two spaces partitioned by the dash panel to the other, the power harness and the body side harness are connected in the other space. For this reason, the complicated operation | work of inserting the harness for power supply in the harness insertion hole of a dash panel is required.

  Moreover, in order to ensure the watertightness between the two spaces, it is necessary to separately provide a member for filling the gap between the power harness and the harness insertion hole, resulting in an increase in the number of parts.

  Furthermore, when the structure of Patent Document 1 is applied to a fluid pumping tube that pumps fluid, since the bracket is supported in a cantilevered manner, the support rigidity of the bracket becomes insufficient, and the fluid acts by force acting from the pumped fluid. There is a possibility that the pumping tube and bracket will vibrate greatly.

  Therefore, the present invention has a simple configuration in which two fluid pumping tubes are arranged in two spaces and connected to each other in order to pump fluid from one of the two spaces partitioned by the vehicle body panel to the other. It is an object of the present invention to provide a connection structure that can improve the connection workability of the fluid pumping tube and can increase the support rigidity and water tightness.

  In order to achieve the above object, the present invention arranges two fluid pumping tubes through which fluid flows in two spaces in order to pump fluid from one of the two spaces partitioned by the vehicle body panel to the other. It is a connection structure of a fluid pressure feeding tube that connects both, and includes a bracket mounting hole, a bracket, and a connector.

  The bracket mounting hole is formed in the vehicle body panel and communicates the two spaces. The bracket is plate-shaped, and a concave portion that is partially recessed from the flat portion is provided integrally with the flat portion. The recess has an inclined surface portion and a wall surface portion. The inclined surface portion is inclined with respect to the flat surface portion, and the wall surface portion closes between the flat surface portion and the outer edge of the inclined surface portion in a region where the outer edge of the inclined surface portion is separated from the flat surface portion. A connector mounting hole is formed in the inclined surface portion. The connector has two connection ports to which two fluid pumping tubes are respectively connected, and is attached to the connector mounting hole.

  With the connector mounted in the connector mounting hole, the bracket covers the bracket mounting hole with the flat surface in contact with the peripheral edge of the bracket mounting hole on the body panel, and the two connection ports of the connector are in two spaces, respectively. Exposed. At least one of the two connection ports of the connector opens in a direction substantially orthogonal to the through direction of the connector mounting hole in a state where the connector is mounted in the connector mounting hole. The connector is attached to the connector attachment hole in such a posture that one connection port opens in a direction away from the flat portion.

  In the above configuration, when two fluid pressure feeding tubes are connected, a connector is attached to the connector attachment hole of the bracket, and the flat portion of the bracket is fixed in surface contact with the peripheral portion of the bracket attachment hole of the vehicle body panel. In this state (bracket mounting state), the two connection ports of the connector are exposed in the two spaces, respectively, so that the two fluid pressure feeding tubes respectively arranged in the two spaces can be connected to the two connection ports. Therefore, it is not necessary to insert the fluid pressure feeding tube into the vehicle body panel, and the connection workability is good.

  At least one of the two connection ports of the connector opens in a direction substantially orthogonal to the through direction of the connector mounting hole in a state where the connector is mounted in the connector mounting hole. For this reason, if the connector mounting surface portion in which the connector mounting hole is formed is substantially parallel to the vehicle body panel, the connection direction of the fluid pressure feeding tube to one connection port is substantially parallel to the vehicle body panel, and one connection port is If it is close to the vehicle body panel, the work space is restricted by the vehicle body panel, and the connection work of the fluid pressure feeding tube may not be easily performed. On the other hand, in the above configuration, the inclined surface portion to which the connector is attached is inclined with respect to the flat portion, and the connector is attached to the connector attachment hole in a posture in which one connection port opens in a direction away from the flat portion. The connection direction of the fluid pressure feeding tube to one of the connection ports is not a direction substantially parallel to the vehicle body panel, but a direction heading obliquely toward the vehicle body panel. For this reason, even when one of the connection ports is close to the vehicle body panel, the work space is hardly restricted by the vehicle body panel, and the connection work of the fluid pressure feeding tube can be easily performed.

  A flat portion and a concave portion are integrally provided on the bracket, and the wall surface portion closes between the outer edge of the inclined surface portion inclined with respect to the flat portion and the flat portion in the concave portion. In other words, the wall surface portion continues the outer edge of the inclined surface portion and the flat surface portion in a state where it rises from both the flat surface portion and the inclined surface portion. For this reason, a wall surface part functions as a rib which reinforces a plane part and an inclined surface part, and a bracket becomes difficult to change. Further, in the bracket mounting state, since the flat portion is fixed in surface contact with the vehicle body panel, the bracket is firmly supported by the vehicle body panel. Therefore, the support rigidity of the fluid pumping tube by the bracket can be increased.

  The wall surface portion of the bracket closes between the inclined surface portion and the flat surface portion, and in the bracket mounting state, the flat surface portion is fixed in surface contact with the peripheral edge portion of the bracket mounting hole of the vehicle body panel, and the bracket covers the bracket mounting hole. The watertightness between the two spaces can be ensured by the bracket.

  As described above, the connection workability of the two fluid pressure feeding tubes can be improved by a simple configuration in which the bracket to which the connector is attached is fixed to the vehicle body panel. Moreover, the support rigidity of the fluid pumping tube and the water tightness between the two spaces can be enhanced.

  Moreover, you may insert the recessed part of a bracket into the bracket attachment hole of a vehicle body panel, and you may engage with a bracket attachment hole. By engaging the concave portion of the bracket with the bracket mounting hole, the bracket can be easily positioned with respect to the vehicle body panel. Moreover, the mounting state of the bracket with respect to the vehicle body panel is stabilized, and the support rigidity of the fluid pumping tube by the bracket can be further increased.

  According to the present invention, in order to pressure-feed fluid from one of the two spaces partitioned by the vehicle body panel to the other, the two fluid pressure-feeding tubes are respectively arranged in the two spaces and connected to each other, with a simple configuration. The connection workability of the two fluid pumping tubes can be improved, and the support rigidity and water tightness can be improved.

It is sectional drawing which shows the connection structure of one Embodiment of this invention. It is a figure which shows the bracket of FIG. 1, (a) is a perspective view, (b) is IIb-IIb arrow sectional drawing of (a).

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a floor panel (vehicle body panel) 20 that partitions an upper vehicle interior space 10 and a lower vehicle interior space 11 is fixed to the lower part of the cab of the vehicle. 11, flexible tubes (fluid pumping tubes) 12 and 13 for pumping fluid from one of the two spaces 10 and 11 to the other are respectively arranged. In the present embodiment, three flexible tubes 12 and 13 are arranged in the vehicle interior space 10 and the vehicle interior space 11, respectively, and three systems of fluid pressure feed paths are provided between the vehicle interior space 10 and the vehicle interior space 11. Is formed. In the fluid pumping path of each system, the flexible tube 12 in the vehicle interior space 10 and the flexible tube 13 in the vehicle interior space 11 are connected in the same manner. A description of the two systems will be omitted as appropriate. Further, as the above-described one system, a fluid pressure feeding path for pressure-feeding air (pressurized air) for performing on / off control of a vehicle parking brake (not shown) from the vehicle interior space 11 to the vehicle interior space 10 will be described. For this reason, in the following description, the flexible tube 12 in the vehicle interior space 10 may be referred to as a downstream tube, and the flexible tube 13 in the vehicle interior space 11 may be referred to as an upstream tube.

  The flexible tubes 12 and 13 are flexible fluid-feeding pipe bodies made of resin or the like, and are piped separately on the upstream side and the downstream side in the fluid-feeding direction with the floor panel 20 in between. ing. In the present embodiment, air is applied as an example of fluid pressure-fed by the flexible tubes 12 and 13, but a liquid such as oil can also be applied. In this embodiment, the air pressure-fed by the flexible tubes 12 and 13 is used for controlling the parking brake of the vehicle, and the upstream end of the upstream tube 13 is an air tank (not shown) fixed to a vehicle body frame (not shown). The downstream end is connected to the connector 15. The upstream end of the downstream tube 12 is connected to the connector 15, the downstream end is connected to an operating part (not shown) of the parking brake, and the upstream tube 13 and the downstream tube 12 communicate with each other via the connector 15.

  The connector 15 has a connection port (one connection port) 17 to which the downstream end of the upstream tube 13 is connected, and a connection port 16 to which the upstream end of the downstream tube 12 is connected. By inserting / removing the downstream end of the upstream tube 13 into / from the connection port 16, the upstream tube 13 is detachably connected to the connector 15, and by connecting / disconnecting the upstream end of the downstream tube 12 to / from the connection port 16, the downstream side The tube 12 is detachably connected to the connector 15. A substantially L-shaped fluid flow passage (not shown) that connects the two connection ports 16, 17 is formed inside the connector 15, and the opening direction of the connection port 17 (the upstream tube 13 from the connection port 17 is connected). The extending direction) is bent approximately 90 ° with respect to the opening direction of the connection port 16 (extending direction of the downstream tube 12 from the connection port 16). The air flowing out from the air tank flows from the upstream tube 13 to the downstream tube 12 via the connector 15.

  As shown in FIGS. 1 and 2, the floor panel 20 is formed with an oval bracket mounting hole 21 that connects the vehicle interior space 10 and the vehicle exterior space 11, and the bracket 1 is attached to the bracket mounting hole 21. Is done. The peripheral edge of the bracket mounting hole 21 includes linear straight edges 21a and 21b facing each other, and curved edges 21c and 21d curved in a semicircular shape between both ends of the two straight edges 21a and 21b (FIG. 2 ( a)).

  The bracket 1 is a press-molded metal plate, and includes a flat planar portion 2, a concave portion 3 partially recessed from the central region of the planar portion 2 to one side (lower side in FIG. 1), and the planar portion 2. A peripheral rib 4 that is bent and raised from the outer peripheral edge to the other side (upper side in FIG. 1) is integrally provided. Similar to the peripheral edge of the bracket mounting hole 21, the outer peripheral edge of the recess 3 is a straight linear edge 3a, 3b facing each other, and a curved edge 3c that curves in a semicircular shape between both ends of the two linear edges 3a, 3b. , 3d (see FIG. 2A), and is set to a size and shape slightly smaller than the peripheral edge of the bracket mounting hole 21. By inserting the recess 3 into the bracket mounting hole 21 from the vehicle interior space 10, the lower surface of the flat surface portion 2 comes into surface contact with the upper surface of the floor panel 20 at the peripheral edge of the bracket mounting hole 21, and the recess 3 is connected to the bracket mounting hole 21. Engage. In this state, the bracket 1 is fastened and fixed to the floor panel 20 by the bolts 22 and the nuts 23. The bracket 1 may be formed by resin injection molding or the like. Further, the bracket 1 may be fixed to the floor panel 20 with rivets or the like.

  The concave portion 3 includes a flat inclined surface portion 5 that is inclined with respect to the flat surface portion 2, and a wall surface that blocks between the flat surface portion 2 and the outer edge of the inclined surface portion 5 in a region where the outer edge of the inclined surface portion 5 is separated from the flat surface portion 2. Part 6 is formed. Since the inclined surface portion 5 of the present embodiment is bent from one of the straight edges 3a on the outer peripheral edge of the concave portion 3, the region (the straight edge 3b and the curved edges 3c, 3d) of the outer edge of the inclined surface portion 5 excluding the straight portion 3a. The region separated from the plane portion 2 is a region separated from the plane portion 2.

  The inclined surface portion 5 is formed with three connector mounting holes 7 into which the three systems of connectors 15 are inserted and fixed by fastening. In a state where the connector 15 is attached to each connector attachment hole 7 and the flat surface portion 2 is fixed in contact with the peripheral edge portion of the bracket attachment hole 21 of the floor panel 20, the bracket 1 covers the bracket attachment hole 20 and 2 of the connector 15. The two connection ports 16 and 17 are exposed in the vehicle interior space 10 and the vehicle exterior space 11, respectively. In the connector mounting state in which the connector 15 is mounted in the connector mounting hole 7, the connection port 16 in the vehicle interior space 10 out of the two connection ports 16 and 17 of the connector 15 opens in substantially the same direction as the penetration direction of the connector mounting hole 7. Then, the connection port 17 of the vehicle exterior space 11 opens in a direction substantially orthogonal to the through direction of the connector mounting hole 7. The connector 15 is attached to the connector attachment hole 7 in such a posture that the connection port 17 opens in a direction away from the plane portion 2. The connector 15 attached to the connector attachment hole 7 closes the connector attachment hole 7.

  When connecting the upstream side tube 13 and the downstream side tube 12, the connector 15 is attached to the connector mounting hole 7 of the bracket 1, and the flat surface portion 2 of the bracket 1 is brought into surface contact with the peripheral edge portion of the bracket mounting hole 21 of the floor panel 20. And fix. Since the two connection ports 16 and 17 of the connector 15 are exposed in the vehicle interior space 10 and the vehicle exterior space 11 in this bracket mounting state, respectively, the downstream tube 12 arranged in the vehicle interior space 10 and the vehicle exterior space 11 are arranged. The planned upstream tube 13 can be connected to the two connection ports 16 and 17, respectively. Therefore, it is not necessary to insert the fluid pressure feeding tubes 12 and 13 into the floor panel 20, and the connection workability is good.

  One connection port 17 of the connector 15 opens in a direction substantially orthogonal to the through direction of the connector mounting hole 15 in a state where the connector 15 is mounted in the connector mounting hole 7. For this reason, when the connector mounting surface part (in this embodiment, the inclined surface part 5) in which the connector mounting hole 7 is formed is substantially parallel to the floor panel 20, the connection direction of the upstream tube 13 to the connection port 17 is the floor panel 20. If the connection port 17 is close to the floor panel 20, the work space is restricted by the floor panel 20, and the upstream tube 13 may not be easily connected. . On the other hand, in the present embodiment, the inclined surface portion 5 to which the connector 15 is attached is inclined with respect to the flat surface portion 2, and the connector 15 is in a position in which the connection port 17 opens in a direction away from the flat surface portion 2. 7, the connection direction of the upstream tube 13 to the connection port 17 is not a direction substantially parallel to the floor panel 20, but a direction toward the floor panel 20 from an oblique direction. For this reason, even when the connection port 17 is close to the floor panel 20, the work space is not easily restricted by the floor panel 20, and the connection work of the upstream tube 13 can be easily performed.

  A flat portion 2 and a concave portion 3 are integrally provided in the bracket 1, and the wall portion 6 blocks the outer edge of the inclined surface portion 5 that is inclined with respect to the flat portion 2 and the flat portion 2 in the concave portion 3. In other words, the wall surface portion 6 causes the outer edge of the inclined surface portion 5 and the flat surface portion 2 to continue in a state where the wall surface portion 6 is bent and raised from both the flat surface portion 2 and the inclined surface portion 5. For this reason, the wall surface part 6 functions as a rib which reinforces the plane part 2 and the inclined surface part 5, and the bracket 1 becomes difficult to deform | transform. Further, the deformation of the plane portion 2 is also suppressed by the peripheral rib 4. Furthermore, since the flat portion 2 is fixed in surface contact with the floor panel 20 in the bracket mounting state, the bracket 1 is firmly supported by the floor panel 20. Therefore, the support rigidity of the fluid pumping tubes 12 and 13 by the bracket 1 can be increased.

  The wall surface portion 6 of the bracket 1 closes the space between the inclined surface portion 5 and the flat surface portion 2. In the bracket mounting state, the flat surface portion 2 is fixed in surface contact with the peripheral edge portion of the bracket mounting hole 21 of the floor panel 20. Since the bracket mounting hole 21 is covered, the watertightness between the vehicle interior space 10 and the vehicle exterior space 11 can be secured by the bracket 1.

  Thus, the workability of connecting the two fluid pressure feeding tubes 12 and 13 can be improved by a simple configuration in which the bracket 1 to which the connector 15 is attached is fixed to the vehicle body panel. Moreover, the 12, 13 support rigidity of the fluid pumping tube and the water tightness between the two spaces 10, 11 can be enhanced.

  Further, since the concave portion 3 of the bracket 1 is inserted into the bracket mounting hole 21 of the floor panel 20 and engaged with the bracket mounting hole 21, the bracket 1 can be easily positioned with respect to the floor panel 20. Moreover, the mounting state of the bracket 1 with respect to the floor panel 20 is stabilized, and the support rigidity of the fluid pumping tubes 12 and 13 by the bracket 1 can be further increased.

  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, in the range which does not deviate from this invention, an appropriate change is possible. . 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.

  In the present embodiment, an example in which three fluid pumping paths are connected by one bracket 1 is described, but the number of fluid pumping paths connected by one bracket 1 is not limited to this, and one system, two systems, or There may be four or more systems. When it is possible to connect multiple systems of fluid pumping paths with one bracket 1, it is possible to reduce the number of parts and the number of work steps compared to the case where brackets are provided for each system.

  In the present embodiment, the connector 15 is used in which the opening direction of one of the two connection ports 16 and 17 is in a direction substantially orthogonal to the penetrating direction of the connector mounting hole 7 in the connector mounting state. You may use the connector which opens in the direction (opposite direction) from which one connection port is mutually orthogonally crossed substantially orthogonally with respect to the penetration direction of the connector attachment hole 7. FIG.

  In the present embodiment, the structure in which the floor panel 20 partitions the vehicle interior space 10 and the vehicle exterior space 11 has been described. However, the present invention can be applied as long as the other vehicle body panel partitions the two spaces.

  The present invention can be applied to various vehicles as a structure for connecting two fluid pumping tubes arranged respectively in two spaces partitioned by a vehicle body panel.

DESCRIPTION OF SYMBOLS 1 Bracket 2 Plane part 3 Concave part 4 Peripheral rib 5 Inclined surface part 6 Wall surface part 7 Connector mounting hole 10 Car interior space 11 Car exterior space (one space)
12 Downstream tube (flexible tube, fluid pumping tube)
13 Upstream tube (flexible tube, fluid pumping tube)
15 Connector 16 Connection port 17 Connection port (One connection port)
20 Floor panel (body panel)
21 Bracket mounting hole

Claims (2)

In order to pressure-feed fluid from one of the two spaces partitioned by the vehicle body panel to the other, two fluid pressure-feeding tubes through which the fluid circulates are arranged in the two spaces, respectively, and the fluid pressure-feeding tube connection structure Because
A bracket mounting hole formed in the vehicle body panel and communicating the two spaces;
A concave portion partially recessed from the flat portion is provided integrally with the flat portion, the concave portion has an inclined surface portion and a wall surface portion, the inclined surface portion is inclined with respect to the flat surface portion, and the wall surface portion is A plate-like bracket in which an outer edge of the inclined surface portion is separated from the flat surface portion to block between the flat portion and the outer edge of the inclined surface portion, and a connector mounting hole is formed in the inclined surface portion;
A connector that has two connection ports to which the two fluid pumping tubes are respectively connected, and is attached to the connector attachment hole;
In the state where the connector is attached to the connector attachment hole, and the flat surface portion is fixed in contact with the peripheral edge portion of the bracket attachment hole of the vehicle body panel, the bracket covers the bracket attachment hole, and the 2 of the connector Two connection ports are exposed in the two spaces,
At least one of the two connection ports of the connector opens in a direction substantially orthogonal to the penetration direction of the connector mounting hole in a state where the connector is mounted in the connector mounting hole.
The connector is attached to the connector attachment hole in a posture in which the one connection port opens in a direction away from the flat portion. The fluid pressure feeding tube connection structure according to claim 1,
The fluid pressure feeding tube connection structure, wherein the recess of the bracket is inserted into the bracket mounting hole of the vehicle body panel and engages with the bracket mounting hole.

Images