JP2017115794A - Fuel supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel supply device capable of improving shock resistance with respect to a collision load in the head-on collision and in the rear collision of a vehicle and the like.SOLUTION: A fuel supply device 10 includes a flange unit 14, a pump unit 16, connection shafts 48 and a joint member 50. The flange unit 14 has a flange body 25 for closing an opening part 23 of a fuel tank 12 of a vehicle and the like. The pump unit 16 has a fuel pump 28 arranged in a horizontal state in the fuel tank 12, and a pump holding member 30 for holding the fuel pump 28. The pair of connection shafts 48 is provided in a suspended manner in the flange body 25. The joint member 50 is provided at the pump holding member 30, and both connection shafts 48 are inserted in an axial direction in a movable manner. Both units 14, 16 are connected so as to be relatively movable in the vertical direction. Both connection shafts 48 are arranged side by side in the cross direction in parallel with each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fuel supply device that supplies fuel in a fuel tank of a vehicle or the like to an internal combustion engine, so-called engine.

  A prior art fuel supply apparatus as a conventional example will be described. FIG. 6 is a plan view conceptually showing the fuel supply device. As shown in FIG. 6, the fuel supply apparatus 100 includes a lid side unit 102, a pump side unit 104, a pair of both connecting shafts 106, and a joint portion 108. The lid side unit 102 has a lid member 114 that closes an opening 112 formed in the upper surface portion 111 of a fuel tank 110 such as a vehicle. The pump-side unit 104 includes a fuel pump 116 that is horizontally disposed in the fuel tank 110 and a pump holding member 118 that holds the fuel pump 116. The pair of both connecting shafts 106 are provided in a suspended manner on the lid member 114. The joint portion 108 is provided in the pump holding member 118, and the both connecting shafts 106 are inserted so as to be movable in the axial direction (front and back direction in FIG. 6). Thereby, the lid side unit 102 and the pump side unit 104 are connected so as to be relatively movable in the vertical direction (the front and back direction in FIG. 6). Further, both connecting shafts 106 are arranged in parallel to each other in the left-right direction of the vehicle. An example of the fuel supply apparatus 100 including the pump-side unit 104 having the fuel pump 116 arranged vertically in the fuel tank 110 is described in Patent Document 1. Patent document 1 is a reference technique.

JP 2010-1332066 A

  According to the conventional example, both connecting shafts 106 are arranged in parallel to each other in the left-right direction of the vehicle. For this reason, sufficient impact resistance cannot be obtained with respect to the collision load at the time of the front collision or rear collision of the vehicle. For this reason, when the collision load is excessive, there is a possibility that a problem such as deformation of the base portion of the connecting shaft 106 in the lid side unit 102, the joint portion 108, or the connecting shaft 106 may occur. The subject of this invention is providing the fuel supply apparatus which can improve the impact resistance with respect to the collision load at the time of front collision or rear collision of vehicles.

  The above problem can be solved by the fuel supply device of the present invention. According to a first aspect of the present invention, there is provided a lid-side unit having a lid member for closing an opening formed in an upper surface portion of a fuel tank such as a vehicle, a fuel pump disposed horizontally in the fuel tank, and the fuel A pump-side unit having a pump holding member for holding a pump, a pair of both connecting shafts suspended from the lid member, and provided on the pump holding member and movable in the axial direction. A joint part inserted into the fuel supply device, wherein the lid side unit and the pump side unit are connected to each other so as to be relatively movable in the vertical direction. These fuel supply devices are arranged in parallel with each other in the longitudinal direction. According to this configuration, both the connecting shafts are arranged in parallel in the front-rear direction of the vehicle or the like, so that compared to the conventional example, the impact resistance against the collision load at the time of front collision or rear collision of the vehicle or the like. Can be improved. Accordingly, it is possible to suppress problems such as deformation of the base portion of the connecting shaft, the joint portion, and the connecting shaft in the lid-side unit, which are generated when the collision load in the front-rear direction of the vehicle is excessive.

  According to a second aspect, in the first aspect, the joint portion is configured separately from the pump holding member, and the joint portion is arranged in the vehicle with respect to one end portion in the left-right direction of the pump holding member. The sub-tank is a fuel supply device that is connected to be rotatable about an axis extending in the front-rear direction, and the sub-tank extends in the left-right direction of the vehicle or the like. According to this structure, a pump holding member and a joint part can be rotated relatively. For this reason, even if it is a pump side unit provided with the sub tank extended in the left-right direction, such as vehicles, it can be rotated so that it may extend below to the lid side unit at the time of the assembly of the fuel supply device to a fuel tank. . Thereby, the insertion property of the pump side unit into the fuel tank can be improved. Further, the pump side unit inserted into the fuel tank may be rotated toward the lid side unit so as to be horizontally arranged in the fuel tank.

  According to a third invention, in the second invention, the lower end portion of at least one of the two connecting shafts is set so as to be able to contact the pump holding member when the two units approach more than a predetermined distance. It is a fuel supply device. According to this configuration, in a fuel tank that deforms depending on a change in internal pressure, a change in fuel amount, or a change in fuel amount due to a temperature change such as temperature, both units may approach more than a predetermined amount due to the contraction of the fuel tank. . In this case, when the lower end portion of at least one of the two connecting shafts contacts the pump holding member, it is possible to prevent the two units from approaching each other. Thereby, shrinkage | contraction of the up-down direction of a fuel tank can be suppressed.

  In a fourth aspect based on the third aspect, the joint portion has an upper piece portion and both side piece portions, and is formed in a gate shape straddling the pump holding member. The fuel supply device is connected to a pump holding member so as to be rotatable, and the both connecting shafts are inserted into the upper piece so as to be movable in the axial direction. According to this configuration, both side pieces of the joint portion straddling the pump holding member are rotatably connected to the pump holding member. Thereby, a joint part and a pump holding member can be rotated stably, and an upper piece part and both connection shafts can be moved to an axial direction stably.

  According to a fifth aspect of the present invention based on the fourth aspect, the side piece corresponding to the connecting shaft capable of contacting the pump holding member among the two side pieces of the joint portion is the pump at the lower end of the connecting shaft. It is a fuel supply apparatus which has a control part which controls the protrusion outside a holding member. According to this configuration, the connecting shaft to the outside of the pump holding member by the restricting portion of the side piece corresponding to at least one of the connecting shafts when the two units further approach after the connecting shaft contacts the pump holding member. It is possible to regulate the protrusion of the lower end of the. For this reason, while suppressing further approach of both units, the protrusion of the lower end part of the connection shaft outside a pump holding member can be suppressed.

  According to a sixth invention, in any one of the first to fifth inventions, the pump side unit includes a sub tank provided in the pump holding member and storing fuel, and the sub tank is opened on a lower surface side. And a bag-like fuel filter portion that closes an opening on the lower surface side of the tank body portion, and the fuel filter portion is sucked into the fuel pump from the fuel tank. The fuel supply device is provided so as to filter both the fuel to be discharged and the fuel sucked into the fuel pump from the sub tank. According to this configuration, fuel can be stored in the sub tank provided in the pump side unit. In addition, the bag-like fuel filter portion that closes the opening on the lower surface side of the tank main body portion allows both the fuel sucked into the fuel pump from the fuel tank and the fuel sucked into the fuel pump from the sub-tank. It can be filtered. Therefore, even when the remaining amount of fuel in the fuel tank decreases, the engine can be operated if there is a remaining amount in at least one of the fuel in the fuel tank and the fuel in the sub tank. . In addition, the height of the sub tank can be reduced. For this reason, the gravity center of the pump side unit can be lowered, and the installation posture of the pump side unit with respect to the fuel tank can be stabilized. This is effective in improving the impact resistance against a collision load at the time of front collision or rear collision of a vehicle or the like.

It is a top view showing roughly the fuel supply device concerning one embodiment. It is a front view which shows roughly the fuel supply apparatus seen from the vehicle back. It is a side view which shows roughly the fuel supply apparatus seen from the vehicle right side. It is a front view which shows roughly the expansion | extension state of a fuel supply apparatus. It is a side view which shows schematically the approach state of both units. It is a top view which shows roughly the fuel supply apparatus concerning a prior art example.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. The fuel supply device according to the present embodiment supplies fuel in a fuel tank mounted on a vehicle such as an automobile equipped with an engine that is an internal combustion engine to the engine. 1 is a plan view schematically showing the fuel supply device, FIG. 2 is a front view schematically showing the fuel supply device as seen from the rear of the vehicle, and FIG. 3 is a schematic view of the fuel supply device as seen from the right side of the vehicle. It is a side view. 1 to 3 show the fuel supply device installed in the fuel tank. In FIG. 1 to FIG. 3, the front, rear, left, right, top, and bottom directions are as shown in the drawings, and correspond to the directions of the vehicle. That is, the front-rear direction corresponds to the vehicle length direction, the left-right direction corresponds to the vehicle width direction, and the up-down direction corresponds to the vehicle height direction.

  As shown in FIG. 2, the fuel supply device 10 is installed in the fuel tank 12. The fuel supply device 10 includes a flange unit 14, a pump unit 16, and a coupling mechanism 18. For convenience of explanation, the fuel tank 12, the flange unit 14, the pump unit 16, and the coupling mechanism 18 will be described in this order.

  The fuel tank 12 is made of resin and is formed in a hollow container shape having an upper surface portion 20 and a bottom surface portion 21. A circular hole-shaped opening 23 is formed in the upper surface portion 20. The fuel tank 12 is mounted with a top surface 20 and a bottom surface 21 in a horizontal state with respect to a vehicle (not shown). For example, liquid fuel such as gasoline is stored in the fuel tank 12.

  The flange unit 14 is made of resin and has a disk-shaped flange main body 25. The flange unit 14 is attached to the upper surface portion 20 of the fuel tank 12 and closes the opening 23. The flange body 25 is provided with a discharge port 26, an electrical connector (not shown), and the like. Although not shown, on the upper surface side of the flange body 25, a fuel supply pipe connected to the engine is connected to the discharge port 26, and an external connector is connected to an electrical connector (not shown). The flange unit 14 corresponds to a “lid unit” in this specification. The flange body 25 corresponds to a “lid member” in the present specification.

  The pump unit 16 is placed horizontally on the bottom surface portion 21 in the fuel tank 12. The pump unit 16 includes a fuel pump 28 and a pump holding member 30. The fuel pump 28 is an electric fuel pump that sucks and discharges fuel. The outer shape of the fuel pump 28 has a substantially cylindrical shape.

  The pump holding member 30 is made of resin, has a long rectangular shape that is elongated in the left-right direction in plan view, and is formed in a flat shape in the up-down direction (see FIGS. 1 and 3). A pump holding portion 31 is formed on the central portion of the pump holding member 30. The fuel pump 28 is held by the pump holding portion 31 with the axial direction directed to the left and right. As a result, the fuel pump 28 is disposed horizontally on the pump holding member 30 in a so-called horizontal orientation. A fuel inlet (not shown) provided at one end of the fuel pump 28 in the axial direction is directed to the left, and a fuel outlet (not shown) provided at the other end is directed to the right. Yes.

  A sub-tank 34 as a reservoir for storing fuel is provided on the lower surface side of the pump holding member 30. The sub tank 34 includes a tank main body 36 formed on the pump holding member 30 and a fuel filter 38 attached so as to overlap the lower surface side of the tank main body 36. The tank body 36 is formed in a shallow box shape with the lower surface side being an opening (referred to as “lower surface opening”) in the pump holding member 30. The tank main body 36 includes an upper plate portion 40 having a long rectangular plate shape including the upper surface of the pump holding member 30 and a side frame portion 41 having a rectangular frame shape (see FIG. 3). It can be seen that the pump holding member 30 also serves as the tank main body 36.

  The fuel filter 38 is formed in a hollow bag shape from a resin nonwoven fabric or the like. The fuel filter 38 has a long rectangular shape that is elongated in the left-right direction in a plan view and is formed in a flat shape in the up-down direction. The fuel filter 38 is disposed in the tank main body 36 so as to close the lower surface opening. Although not shown, a resin-made internal holding member that holds the bag shape of the fuel filter 18 is disposed in the internal space of the fuel filter 38.

  The upper surface side of the fuel filter 38 faces the lower surface opening of the sub tank 34. Although not shown, the tank main body portion 36 is provided with a spacing member for forming a slight gap between the lower surface of the fuel filter 38 and the bottom surface portion 21 of the fuel tank 12. In addition, a fuel introduction hole (not shown) for introducing the fuel in the fuel tank 12 into the sub tank 34 is formed in the upper plate portion 40 of the pump holding member 30. For this reason, the fuel in the fuel tank 12 is introduced into the sub tank 34 from the fuel introduction hole and stored. The fuel filter 38 corresponds to a “fuel filter portion” in this specification.

  The internal space of the fuel filter 38 and the fuel inlet of the fuel pump 28 are connected in communication via a connection pipe 43. The fuel filter 38 filters the fuel drawn into the fuel pump 28. Specifically, the fuel filter 38 filters both the fuel sucked into the fuel pump 28 from the fuel tank 12 outside the sub tank 34 and the fuel sucked into the fuel pump 28 from the sub tank 34. Further, since the fuel filter 38 is formed to be long in the left-right direction, it is possible to increase the filtration area and suppress air suction that occurs when the vehicle is traveling on a curve.

  The discharge port 26 of the flange unit 14 and the fuel pump 28 (specifically, the fuel discharge port) are connected in communication via a piping member 45 made of a flexible bellows-like hose or the like. Although not shown, the electrical connector of the flange unit 14 and the fuel pump 28 (specifically, the electrical connector) are electrically connected via a flexible wiring member. Further, a pressure regulator is provided between the fuel pump 28 and the piping member 45 to adjust the fuel pressure and to discharge the surplus fuel. Excess fuel from the pressure regulator may be discharged into the fuel tank 12 but may be discharged into the sub tank 34.

  As shown in FIG. 3, the connecting mechanism 18 includes a pair of both connecting shafts 48 and a joint member 50. Both connecting shafts 48 are made of a metal round bar or hollow pipe. One end portions (upper end portions) of both the connecting shafts 48 are connected to the lower surface side of the flange main body 25 of the flange unit 14 by press fitting or the like. Thus, the pair of both connecting shafts 48 are provided in a suspended manner on the flange body 25. Both connecting shafts 48 are arranged in parallel in the front-rear direction.

  The joint member 50 is configured separately from the pump holding member 30. The joint member 50 is made of resin and has a gate shape. The joint member 50 includes an upper piece 51 and a pair of front and rear side pieces 52 extending in parallel from both ends of the upper piece 51. The both side pieces 52 are disposed so as to straddle one end (for example, the right end) of the pump holding member 30 in the front-rear direction (see FIGS. 1 and 2). The lower end portions of the both side piece portions 52 are rotatably connected to the left end portion of the pump holding member 30 in the left-right direction via a support shaft 54. Thereby, the pump unit 16 and the joint member 50 are connected so that relative rotation is possible around the axis | shaft extended in the front-back direction.

  A pair of front and rear insertion holes 56 penetrating in the vertical direction are formed in the upper piece portion 51 of the joint member 50 at a predetermined interval from each other. Both connecting shafts 48 are inserted into both insertion holes 56 so as to be movable in the axial direction (vertical direction) (more specifically, slidable). Thereby, the flange unit 14 and the joint member 50 are connected so as to be relatively movable in the vertical direction. Further, both connecting shafts 48 are arranged between the both side pieces 52 of the joint member 50. A flange-shaped retaining member 58 is attached to the lower ends of both the connecting shafts 48. When the retaining member 58 comes into contact with the upper piece 51, both the connecting shafts 48 are retained (see FIG. 4). The joint member 50 corresponds to a “joint portion” in this specification.

  By the relative movement of the flange unit 14 and the joint member 50 in the vertical direction and the relative rotation of the pump unit 16 and the joint member 50, the flange unit 14 and the pump unit 16 can be moved relative to each other in the vertical direction. It is linked movably. Although not shown, a spring is provided between the flange main body 25 of the flange unit 14 and the upper plate portion 40 of the joint member 50 to urge the flange unit 14 and the pump unit 16 away from each other.

  As shown in FIG. 2, on the front and rear surfaces of the pump holding member 30, both rotation stoppers 60 corresponding to the lower left ends of both side pieces 52 are formed in a protruding piece shape (see FIG. 3). In the horizontal state of the pump holding member 30, the both side pieces 52 and the both rotation stoppers 60 are in contact with or close to each other.

  As shown in FIG. 3, a pair of front and rear receiving portions 62 facing the lower end portions of both connecting shafts 48 are formed on the upper plate portion 40 of the pump holding member 30 so as to be symmetrical in the front-rear direction. Moreover, the both side piece parts 52 of the joint member 50 and the two connecting shafts 48 respectively adjacent to the both side piece parts 52 are arranged adjacent to each other. The outer sides of both connecting shafts 48 are covered by both side pieces 52. The pump unit 16 corresponds to a “pump side unit” in this specification.

  Next, the operation of the fuel supply device 10 will be described. When the fuel pump 28 is driven by driving power from the outside, both the fuel in the fuel tank 12 and the fuel in the sub tank 34 are sucked into the fuel pump 28 via the fuel filter 38. The fuel is boosted by the fuel pump 28, the fuel pressure is adjusted by the pressure regulator, discharged to the piping member 45, and further supplied from the discharge port 26 of the flange unit 14 to the engine.

  Next, assembly of the fuel supply device 10 to the fuel tank 12 will be described. FIG. 4 is a front view schematically showing an extended state of the fuel supply device. As shown in FIG. 4, the fuel supply device 10 is extended when assembled to the fuel tank 12. That is, the flange unit 14 and the joint member 50 are separated in the vertical direction, and the retaining member 58 of both the connecting shafts 48 and the upper piece portion 51 of the joint member 50 are brought into contact with each other. In addition, the pump unit 16 is rotated in a direction that lowers to the left with respect to the joint member 50. Thereby, the fuel supply apparatus 10 is set to the extended state.

  Subsequently, the extended fuel supply device 10 is inserted into the opening 23 of the fuel tank 12 while being lowered from above. In the vicinity of the bottom in the fuel tank 12, the pump unit 16 is rotated on the joint member 50 in a horizontal direction and then placed on the bottom surface 21 of the fuel tank 12 (FIG. 2 and FIG. 2). 3). At this time, the both side piece portions 52 and the both rotation preventing portions 60 are in contact with each other, thereby restricting the rotation of the pump holding member 30 from the horizontal state to the left upward direction (see FIG. 2). Further, the flange unit 14 is concentrically disposed above the opening 23 of the fuel tank 12 (see the two-dot chain line in FIGS. 2 and 3).

  Subsequently, the flange unit 14 is pressed downward to close the opening 23 of the fuel tank 12 (see FIGS. 1 to 3). As a result, the pump unit 16 is held in a state of being pressed against the bottom surface portion 21 of the fuel tank 12 by an urging force of a spring (not shown). Further, the flange unit 14 is fixed to the upper surface portion 20 of the fuel tank 12 by fixing means (not shown) such as a fixing metal fitting and a bolt. As described above, the assembly of the fuel supply device 10 to the fuel tank 12 is completed. In this state, the receiving portion 62 of the pump holding member 30 and the lower end portions of both the connecting shafts 48 face each other with a predetermined gap (see FIG. 3).

  By the way, when the fuel tank 12 is deformed depending on the change in the internal pressure or the change in the fuel amount due to the temperature change such as the temperature in the installation state of the fuel supply device 10 (see FIGS. 1 to 3), the upper surface portion of the fuel tank 12 The distance between 20 and the bottom portion 21 changes. In this case, when the distance between the upper surface portion 20 and the bottom surface portion 21 of the fuel tank 12 is increased, the flange unit 14 and the pump unit 16 are separated from each other through the sliding of the joint member 50 and both the connecting shafts 48. Move relative to Conversely, when the distance between the upper surface portion 20 and the bottom surface portion 21 of the fuel tank 12 becomes smaller, the flange unit 14 and the pump unit 16 are moved through the sliding between the joint member 50 and the connecting shafts 48. Move relative to the approaching direction. Thereby, the flange unit 14 and the pump unit 16 can follow the change in the distance between the upper surface portion 20 and the bottom surface portion 21 of the fuel tank 12.

  Further, when the fuel tank 12 contracts excessively, the both receiving portions 62 of the pump holding member 30 and the lower end portions of both the connecting shafts 48 abut (see FIG. 5). Thereby, the approach more than predetermined of both units 14 and 16 is controlled.

  Further, when the fuel tank 12 further contracts excessively, it is expected that the lower end portions of both the connecting shafts 48 bend so as to protrude from the both receiving portions 62 of the pump holding member 30 to the outside of the pump holding member 30 (in FIG. 5). , See alternate long and two short dashes line 48). However, the both side piece portions 52 of the joint member 50 and the two connecting shafts 48 adjacent to the both side piece portions 52 are arranged adjacent to each other. For this reason, the both-side piece portions 52 of the joint member 50 restrict outward protrusion of the lower end portions of the two connecting shafts 48 (see the two-dot chain line 48 in FIG. 5). The side piece portion 52 of the joint member 50 corresponds to a “regulating portion” in this specification. Further, it can be seen that the side piece portion 52 also serves as a restricting portion.

  According to the fuel supply apparatus 10 described above, both connecting shafts 48 are arranged in parallel in the front-rear direction (see FIGS. 1 to 3). For this reason, compared with a prior art example, the impact resistance with respect to the collision load at the time of front collision or rear collision of a vehicle etc. can be improved. Thereby, it is possible to suppress problems such as deformation of the base portion of the connecting shaft 48 and the joint member 50 and the connecting shaft 48 in the flange unit 14 that are generated when the collision load in the front-rear direction of the vehicle is significant.

  Further, the pump holding member 30 and the joint member 50 can be relatively rotated. Therefore, even the pump unit 16 including the sub tank 34 extending in the left-right direction can be rotated so as to extend downward with respect to the flange unit 14 when the fuel supply device 10 is assembled to the fuel tank 12. (See FIG. 4). Thereby, the insertion property of the pump unit 16 into the fuel tank 12 can be improved. Further, the pump unit 16 inserted into the fuel tank 12 may be rotated toward the flange unit 14 so as to be horizontally disposed on the bottom surface portion 21 in the fuel tank 12.

  Further, in the fuel tank 12 that is deformed depending on a change in internal pressure due to a temperature change such as an air temperature, a change in the amount of fuel, or a change in the amount of fuel, the units 14 and 16 approach more than a predetermined amount due to the contraction of the fuel tank 12 There is. In this case, the lower end portions of both connecting shafts 48 abut against the both receiving portions 62 of the pump holding member 30 (see FIG. 5). Thereby, the approach beyond the predetermined of both units 14 and 16 can be controlled. The vertical contraction of the fuel tank 12 can be suppressed.

  Further, both side pieces 52 of the joint member 50 straddling the pump holding member 30 are rotatably connected to the pump holding member 30. Thereby, the joint member 50 and the pump holding member 30 can be stably rotated, and the upper piece 51 and the two connecting shafts 48 can be stably moved in the axial direction.

  Further, when the units 14 and 16 are further approached after the connection shaft 48 is brought into contact with the pump holding member 30, the two side portions 52 of the joint member 50 corresponding to the both connection shafts 48 are brought out of the pump holding member 30. It is possible to regulate the protrusion of the lower end portions of both the connecting shafts 48 (see the two-dot chain line 48 in FIG. 5). For this reason, while suppressing further approach of both the units 14 and 16, it can suppress the protrusion of the lower end part of the connection shaft 48 out of the pump holding member 30.

  Further, the fuel can be stored in the sub tank 34 provided in the pump unit 16. Further, both of the fuel sucked into the fuel pump 28 from the fuel tank 12 and the fuel sucked into the fuel pump 28 from the sub tank 34 by the bag-like fuel filter 38 that closes the lower surface opening of the tank main body 36. The fuel can be filtered. For this reason, even when the remaining amount of fuel in the fuel tank 12 decreases, the engine can be operated if at least one of the fuel in the fuel tank 12 and the fuel in the sub-tank 34 has a remaining amount. Is possible. In addition, the height of the sub tank 34 can be reduced. For this reason, the gravity center of the pump unit 16 can be lowered, and the installation posture of the pump unit 16 with respect to the fuel tank 12 can be stabilized. This is effective in improving the impact resistance against a collision load at the time of front collision or rear collision of a vehicle or the like.

[Other Embodiments] The present invention is not limited to the embodiments and can be modified without departing from the gist of the present invention. For example, the present invention is not limited to a vehicle such as an automobile, and may be applied to the fuel supply apparatus 10 for other vehicles. Further, the components provided in each unit of the fuel supply apparatus 10 may be appropriately increased or decreased or changed. Moreover, you may change the shape of the joint member 50 suitably. The joint member 50 may be fixed to the pump holding member 30 or may be formed on the pump holding member 30 as a joint portion. Further, the lower end portion of one of the connecting shafts 48 does not need to contact the pump holding member 30 when the units 14 and 16 approach each other more than a predetermined distance. Moreover, you may form a control part in the shape which covers the connection shaft 48, for example, a cross-sectional semicircle shape, U shape, and a circular shape. Further, the restricting portion may be additionally formed on the joint member 50. Further, the restricting portion may be additionally formed on the pump holding member 30.

DESCRIPTION OF SYMBOLS 10 ... Fuel supply apparatus 12 ... Fuel tank 14 ... Flange unit (lid side unit)
16 ... Pump unit (pump side unit)
20 ... Upper surface portion 21 ... Bottom surface portion 23 ... Opening portion 25 ... Flange body (lid member)
28 ... Fuel pump 30 ... Pump holding member 34 ... Sub tank 38 ... Fuel filter (fuel filter)
48 ... Connection shaft 50 ... Joint member (joint part)
51 ... Upper piece 52 ... Side piece (regulator)

Claims (6)

A lid-side unit having a lid member for closing an opening formed in an upper surface portion of a fuel tank such as a vehicle;
A fuel pump disposed horizontally in the fuel tank, and a pump-side unit having a pump holding member for holding the fuel pump;
A pair of both connecting shafts provided suspended from the lid member;
A joint part provided in the pump holding member and through which both the connecting shafts are movably inserted in the axial direction;
With
A fuel supply device in which the lid side unit and the pump side unit are connected so as to be relatively movable in the vertical direction,
The both connecting shafts are fuel supply devices that are arranged in parallel to each other along the longitudinal direction of the vehicle or the like. The fuel supply device according to claim 1,
The joint part is configured separately from the pump holding member,
The joint portion is connected to one end portion in the left-right direction of the pump holding member so as to be rotatable about an axis extending in the front-rear direction of the vehicle or the like,
The fuel supply device, wherein the sub tank extends in a left-right direction of the vehicle or the like. The fuel supply device according to claim 2,
The fuel supply device, wherein a lower end portion of at least one of the connection shafts is set to be able to contact the pump holding member when the two units approach each other more than a predetermined distance. The fuel supply device according to claim 3,
The joint part has an upper piece part and both side piece parts and is formed in a gate shape straddling the pump holding member,
The both side pieces are rotatably connected to the pump holding member,
The fuel supply device, wherein the both connecting shafts are inserted through the upper piece so as to be movable in the axial direction. The fuel supply device according to claim 4,
Of the both side piece portions of the joint portion, the side piece portion corresponding to the connecting shaft capable of contacting the pump holding member is a restricting portion that restricts the lower end portion of the connecting shaft from protruding out of the pump holding member. A fuel supply device. A fuel supply device according to any one of claims 1 to 5,
The pump side unit includes a sub tank provided in the pump holding member and storing fuel,
The sub-tank has a tank body portion having an opening on the lower surface side, and a bag-like fuel filter portion that closes the opening on the lower surface side of the tank body portion,
The fuel filter unit is provided so as to filter both the fuel sucked into the fuel pump from the fuel tank and the fuel sucked into the fuel pump from the sub tank. .

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