JP6698181B2 - Fuel supply device - Google Patents

Description

The present invention relates to a fuel supply device.
The present application claims priority based on Japanese Patent Application No. 2017-016736 filed in Japan on February 1, 2017, and the content thereof is incorporated herein.

For example, a fuel supply device for a vehicle having a fuel pump for supplying fuel from a fuel tank to an engine is known. The fuel pump includes a pump body, a filter that prevents foreign matter from entering the pump body, and a housing that encloses the pump body and the filter. The pump body includes a pump unit and a motor unit that drives the pump unit.
Incidentally, the fuel pump may be fixed to the outside of the fuel tank via a fixing member for convenience of layout of the fuel pump and maintenance. In such a case, it is often the case that the housing cannot be disassembled, for example, by caulking the housing, so that the parts constituting the fuel pump are not disassembled outside the fuel tank.

JP, 2013-71697, A

  However, as in the above-described conventional technique, if the housing is made into a structure that cannot be disassembled by caulking and fixing it, there is a problem that maintenance work such as replacement of the filter and replacement of parts in the housing becomes troublesome. ..

  Therefore, the present invention provides a fuel supply device that can facilitate maintenance work and prevent the components from being disassembled.

In order to solve the above problems, according to a first aspect of the present invention, a pump main body, and a bottomed tubular first housing and second housing that fit the openings together to enclose the pump main body. And a fixing member for fixing the fuel pump to a body to be mounted, the opening being provided in one of the opening of the first housing and the opening of the second housing, and the other being provided in the other. An elastically deformable housing engaging piece extending toward the housing is provided, and the housing engaging piece is engageable with the other of the opening of the first housing and the opening of the second housing. An engagement portion is provided, and the fixing member is interposed between the pump attachment portion attached to the fuel pump, the attachment body attachment portion attached to the attachment body, and the fuel pump and the attachment body. and a main body portion that is, the pump mounting portion includes a engaging piece pressing portion for pressing the housing engagement piece from the radially outer side of said first housing and said second housing, said engagement piece retainer The part is a first arm part that extends from the main body part and is elastically deformable so as to cover the first housing and the second housing from the outside in the radial direction, and the tips of the main body part and the first arm part. On the side, a first engaging portion capable of engaging the main body portion and the first arm portion is provided .

In this way, the housing that encloses the pump main body is divided into the first housing and the second housing, and these two housings are engaged by the housing engaging piece and the engaging portion. The housing can be disassembled. Therefore, the maintenance work of the fuel supply device can be facilitated.
Further, the pump mounting portion for fixing the fuel pump to the mounted body has an engaging piece pressing portion that presses the housing engaging piece from the outside in the radial direction of each housing. By pressing the housing engaging piece by the engaging piece pressing portion, it is possible to prevent the first housing and the second housing from being disassembled. Therefore, the disassembly of the fuel pump can be prevented.
Further, the housing engaging piece can be more reliably pressed down by the main body portion and the first arm portion. Therefore, the fuel pump can be firmly supported by the pump mounting portion.

  According to a second aspect of the present invention, in the fuel supply device according to the first aspect of the present invention, the housing engagement portion is an engagement projection that protrudes outward in the radial direction, and the housing engagement piece. Is formed with either a recess or a hole capable of receiving the engagement projection, and the engagement piece retainer is arranged closer to the distal end side of the housing engagement piece than the recess and the hole. Has been done.

With this configuration, the housing engagement piece and the engagement portion can be reliably engaged with each other.
Further, by disposing the engaging piece pressing portion closer to the tip end side of the housing engaging piece than the concave portion and the hole, it is possible to prevent the housing engaging piece from rising from the engaging protrusion. Therefore, it is possible to reliably prevent the engagement protrusion from being disengaged from the recess or the hole.

  According to a third aspect of the present invention, in the fuel supply device according to the first aspect or the second aspect of the present invention, the engagement piece pressing portion is provided around one of the first housing and the second housing. It is formed in a ring shape so as to surround it.

  With this structure, the housing engagement piece can be reliably pressed from the outside in the radial direction of each housing by the engagement piece pressing portion. Therefore, it is possible to reliably prevent the two housings from being disassembled.

According to a fourth aspect of the present invention, in the fuel supply device according to any one of the first to third aspects of the present invention, the housing engaging portion projects toward the radially outer side. The housing engaging piece is formed with either a recess or a hole capable of receiving the engagement projection, and the first arm portion radially connects the recess and the hole. It is formed so as to cover it from the outside.

  With this configuration, the housing engaging piece can be more reliably pressed down by the first arm portion. Further, it is possible to reliably prevent the engagement between the housing engagement piece and the housing engagement portion from being released.

According to a fifth aspect of the present invention, a fuel supply device according to any one of the embodiments of the fourth aspect of the first aspect of the present invention, the object mounting body is a rod-shaped body, wherein the mounting body mounting portion Is a second arm portion that extends from the main body portion and is elastically deformable so as to cover the mounted body from the outside in the radial direction. The main body portion and the second arm portion are provided on the distal end side of the main body portion. And a second engaging portion capable of engaging with the second arm portion.

  With this configuration, the fixing member can be reliably fixed to the mounted body by the main body and the second arm.

According to a sixth aspect of the present invention, in the fuel supply device according to the fifth aspect of the present invention, the first arm portion extends from one side surface of the main body portion, and the second arm portion, The one side surface of the main body portion extends from the other side surface located on the opposite side of the fuel pump, and the first engaging portion includes the other side surface of the main body portion and the first arm portion. And the second engaging portion is provided on the one side surface of the main body portion and on the distal end side of the second arm portion.

Here, both side surfaces (one side surface and the other side surface) of the main body portion are locations where sufficient mechanical strength can be ensured. Therefore, by providing the first engaging portion and the second engaging portion on both side surfaces of the body portion, it is possible to sufficiently secure the fixing strength between the first arm portion and the second arm portion with respect to the body portion. It will be possible.
Further, when the fuel pump is assembled to the mounted body by the fixing member, vibration tends to occur along the direction in which the fuel pump approaches and separates from the mounted body. In such a situation, since the respective engaging portions are arranged on the two side surfaces facing each other in the direction orthogonal to the vibration direction, it is difficult to release the engaging portions. Further, for example, when the mounted body and the fuel pump are arranged side by side in the gravity direction, it is possible to avoid receiving the self-weight of the fuel pump at the engagement portion. Therefore, the engagement by the engagement portion can be reliably maintained.

According to a seventh aspect of the present invention, fuel supply device includes a pump body, a bottomed cylindrical first housing and the second housing to envelope the pump body by fitting the opening portions, the A fuel pump and a fixing member for fixing the fuel pump to a body to be attached are provided, and extend toward one of the opening of the first housing and the opening of the second housing toward the other. A housing engaging piece that is elastically deformable is provided, and a housing engaging portion that is engageable with the housing engaging piece in the other of the opening of the first housing and the opening of the second housing. And the fixing member includes a pump attachment portion attached to the fuel pump, an attachment body attachment portion attached to the attachment body, and a main body interposed between the fuel pump and the attachment body. The engaging piece pressing portion extends from both sides of the main body portion with the fuel pump interposed therebetween, and is elastically deformable so as to cover the first housing and the second housing from the outside in the radial direction. The third arm portion and the fourth arm portion, and the third arm portion and the fourth arm portion can be engaged with the tip end side of the third arm portion and the tip end side of the fourth arm portion. A third engaging portion is provided.

  With this configuration, it is not necessary to cover the first housing and the second housing with one arm, so that the workability of assembling is not impaired even when the fuel supply device is assembled in a narrow space. .. Therefore, a user-friendly fuel supply device can be provided.

According to an eighth aspect of the present invention, in the fuel supply device according to the seventh aspect of the present invention, the housing engaging portion is an engaging protrusion that protrudes outward in the radial direction, and the housing engaging piece. Is formed with either a recess or a hole capable of receiving the engagement projection, and the third arm and the fourth arm cover the recess and the hole from the outside in the radial direction. Is formed in.

  With this configuration, the housing engaging piece can be more reliably pressed down by the main body portion, the third arm portion, and the fourth arm portion. Further, it is possible to reliably prevent the engagement between the housing engagement piece and the housing engagement portion from being released.

According to a ninth aspect of the present invention, in the fuel supply device according to the seventh aspect or the eighth aspect of the present invention, the attached body is a rod-shaped body, and the attached body attaching portion is the main body portion. A fifth arm portion and a sixth arm portion which extend from both sides with the fuel pump interposed therebetween and which are elastically deformable so as to cover the mounted body from the outside in the radial direction, and the distal end side of the fifth arm portion, and A fourth engagement portion capable of engaging the fifth arm portion and the sixth arm portion is provided on the tip end side of the sixth arm portion.

  With this configuration, the fixing member can be reliably fixed to the mounted body by the main body, the fifth arm, and the sixth arm.

According to a tenth aspect of the present invention, in the fuel supply device according to any one of the first to ninth aspects of the present invention, the mounted body is a vehicle frame, and the fuel pump is , For supplying fuel to the engine of the vehicle.

  With this configuration, it is possible to provide a fuel supply device suitable for vehicles.

According to the present invention, the housing that encloses the pump main body is divided into the first housing and the second housing, and these two housings are engaged by the housing engaging piece and the engaging portion. Allows the housing to be disassembled. Therefore, the maintenance work of the fuel supply device can be facilitated.
The pump mounting portion for fixing the fuel pump to the mounted body has an engagement piece pressing portion that presses the housing engagement piece from the outside in the radial direction of each housing. By pressing the housing engaging piece by the engaging piece pressing portion, it is possible to prevent the first housing and the second housing from being disassembled. Therefore, the disassembly of the fuel pump can be prevented.
Further, the housing engaging piece can be more reliably pressed down by the main body portion and the first arm portion. Therefore, the fuel pump can be firmly supported by the pump mounting portion.

It is a perspective view of the fuel supply system in a 1st embodiment of the present invention. It is a partial cross-sectional side view of the fuel pump in the embodiment of the present invention. It is a perspective view of the fuel supply system in a 2nd embodiment of the present invention. FIG. 4 is a view on arrow A of FIG. 3. It is a top view of the fuel supply system in a 3rd embodiment of the present invention.

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

(Fuel supply device)
FIG. 1 is a perspective view of the fuel supply device 1, and FIG. 2 is a partial cross-sectional side view of the fuel pump 3.
As shown in FIGS. 1 and 2, a fuel supply device 1 includes a fuel pump 3 for supplying fuel to an engine (not shown) of a vehicle 2, and a fuel pump 3 having a rod-shaped (pipe-shaped) frame of the vehicle 2. Two fixing bands 4A and 4B for fixing to 30 are provided.

(Fuel pump)
The fuel pump 3 is arranged below the fuel tank (not shown) in the direction of gravity and is connected to this fuel tank via a hose (not shown). The fuel pump 3 includes a housing 5, and a pump body 6 and a filter 7 which are housed in the housing 5.

The pump main body 6 is arranged in most of the pump housing 10 except a pump housing 10 formed in a substantially cylindrical shape, a pump portion 11 installed inside one end of the pump housing 10, and a portion of the pump housing 10 where the pump portion 11 is arranged. The motor unit 12 and the motor unit 12 are the main components.
In the following description, the axial direction of the pump housing 10 will be simply referred to as the axial direction, the radial direction of the pump housing 10 will be simply referred to as the radial direction, and the circumferential direction of the pump housing 10 will be simply referred to as the circumferential direction.

A suction port 13 is provided on one end side of the pump housing 10. The suction port 13 takes in fuel into the pump body 6.
For the pump portion 11 of the pump body 6, for example, a non-volume type regenerative pump having an impeller is used. The pump unit 11 configured as described above is rotationally driven by the motor unit 12. A DC motor with a brush is used for the motor unit 12, for example. The motor unit 12 has a rotation shaft (not shown) along the axial direction. The pump unit 11 is connected to one end of the rotary shaft, and the pump unit 11 is rotationally driven around the rotary shaft.

  A gap (not shown) through which fuel can flow is provided between the pump housing 10 and the motor portion 12. An upper cup 14 is provided on the other end side of the pump housing 10 so as to close the opening of the pump housing 10. The upper cup 14 is provided with a discharge port 15 for discharging fuel to the outside of the pump body 6.

(housing)
The housing 5 is configured to be axially dividable into a first housing 8 and a second housing 9. That is, the first housing 8 and the second housing 9 are each formed in a bottomed cylindrical shape, and the housing 5 is configured by fitting the respective openings 8a and 9a sides. A partition wall 19 that separates a space inside the first housing 8 from a space inside the second housing 9 is provided at a fitting portion between the first housing 8 and the second housing 9.

  Then, the pump body 6 is housed in the first housing 8 so that the axial direction and the rotation axis coincide with each other. The pump body 6 is housed with the upper cup 14 facing the bottom 8 b side of the first housing 8. The suction port 13 of the pump body 6 faces the second housing 9 side through a communication hole 20 formed in the partition wall 19.

A fuel take-out pipe 16 that communicates with the discharge port 15 of the pump body 6 is provided on the bottom portion 8 b of the first housing 8. The fuel take-out pipe 16 is connected to an engine (neither is shown) via a hose. As a result, fuel is supplied from the fuel pump 3 to the engine.
A fuel passage 17 is formed in the bottom portion 8 b of the first housing 8 to connect the fuel take-out pipe 16 and the inside of the first housing 8. A pressure regulator 18 is provided in the middle of the fuel flow path 17.

The pressure regulator 18 keeps the pressure of the fuel supplied to the engine through the fuel extraction pipe 16 at a predetermined pressure. When the fuel in the fuel take-out pipe 16 becomes higher than a predetermined pressure, the fuel is returned to the first housing 8 via the pressure regulator 18.
A connector portion 21 is provided on the bottom portion 8b of the first housing 8. A connector (not shown) extending from an external power source is fitted into the connector portion 21. The connector portion 21 is provided with a terminal 22 that is electrically connected to the motor portion 12 of the pump body 6.

On the peripheral wall 8c of the first housing 8, a substantially cylindrical deaeration hole 23 is provided on the upper side in the direction of gravity so as to protrude upward on the direction of gravity. The degassing holes 23 discharge the vapor generated in the fuel pump 3 to the outside of the fuel pump 3. The deaeration hole 23 is connected to a fuel tank (neither is shown) via a hose.
Further, the deaeration hole 23 is provided with a check valve 24. The check valve 24 prevents the fuel from flowing back into the first housing 8 from a fuel tank (not shown).

  On the peripheral wall 8c of the first housing 8, a plurality of engagement protrusions 25 are provided in the radial direction slightly in front of the end of the opening 8a fitted with the second housing 9 (on the other end side, near the upper cup 14). It is formed so as to project toward the outside. The plurality of engagement protrusions 25 are arranged at equal intervals in the circumferential direction. The engagement projection 25 snap-fits (engages) the first housing 8 and the second housing 9 to integrate the first housing 8 and the second housing 9.

  The engaging projection 25 has an inclined surface 25a whose projection height gradually increases from one end side (opening 8a side, second housing 9 side) of the first housing 8 to the other end side (bottom 8b side). have. The side surface 25b of the engaging projection 25 opposite to the inclined surface 25a is a flat surface along the radial direction (perpendicular to the axial direction).

The filter 7 is housed in the second housing 9. The filter 7 prevents foreign matter from entering the pump body 6. The filter 7 is connected to the suction port 13 facing the second housing 9 side from the pump body 6 through a communication hole 20 formed in the partition wall 19.
A substantially cylindrical fuel intake port 26 is provided on the bottom portion 9b of the second housing 9 so as to project outward in the axial direction. The fuel intake port 26 is connected to a fuel tank (neither is shown) via a hose. As a result, the fuel in the fuel tank flows into the second housing 9 via the hose and the fuel intake port 26.

  On the inner peripheral surface side of the second housing 9 on the opening 9a side, a fitting portion 27 having a diameter increased through a step 27a is formed. The fitting portion 27 is fitted inside the opening 8a side of the first housing 8. Since the step portion 27a is formed in the fitting portion 27, the end portion of the opening 8a of the first housing 8 is brought into contact with the step portion 27a to position the first housing 8 with respect to the second housing 9. .

  The opening 9a of the second housing 9 is provided with a plurality of engaging pieces 28 extending from the peripheral edge toward the first housing 8 in the axial direction. The plurality of engagement pieces 28 are snap-fitted and fixed to the engagement protrusions 25 of the first housing 8 to integrate the first housing 8 and the second housing 9. Therefore, the number of the plurality of engagement pieces 28 is set to be the same as the number of the engagement protrusions 25 of the first housing 8. The plurality of engaging pieces 28 are arranged at equal intervals in the circumferential direction so as to correspond to the engaging protrusions 25.

  Each engagement piece 28 extends from the end of the opening 9a of the second housing 9 over the engagement projection 25 to the other end (FIG. 1, FIG. It is formed so as to extend to the left side in 2). Each engagement piece 28 is formed in a substantially rectangular shape when viewed in the radial direction. An engagement hole 29 into which the engagement protrusion 25 can be inserted is formed in a substantially central portion of the engagement piece 28. Each engagement piece 28 is configured to be slightly elastically deformable along the radial direction. As a result, the engaging pieces 28 are snap-fitted and fixed to the engaging protrusions 25.

(First embodiment)
(Fixed band)
As shown in FIG. 1, two fixing bands 4A and 4B for fixing the fuel pump 3 to the frame 30 of the vehicle 2 are provided side by side in the axial direction of the fuel pump 3. Since the two fixed bands 4A and 4B have the same configuration, only one fixed band 4A will be described below, and the other fixed band 4B will be described as necessary.

  The fixed band 4A is formed by bending one band 40 and fixing both ends thereof with screws 44. The fixing band 4A straddles the frame attachment portion 41 attached to the frame 30, the pump attachment portion 42 attached to the fuel pump 3, the frame attachment portion 41 and the pump attachment portion 42, and the frame attachment portion 41 and the pump attachment portion 42. And a connection support portion 43 that connects

  The frame attachment portion 41 is formed by bending a substantially central portion in the longitudinal direction of the band 40 into a substantially annular shape so as to surround the periphery of the frame 30. From both ends of the frame attachment portion 41, the connection support portions 43 are bent and extended toward the fuel pump 3 side. A pump mounting portion 42 is curvedly formed so as to surround the outer peripheral surface of the fuel pump 3 by a half circumference from the end of the connection support portion 43 opposite to the frame mounting portion 41. A side of the pump mounting portion 42 opposite to the coupling support portion 43 is bent and extended to form a connection portion 45. The connecting portion 45 is fixed by a screw 44. As a result, both ends of the band 40 are overlapped with each other, and the pump mounting portion 42 has a substantially annular shape so as to surround the periphery of the fuel pump 3.

  Here, the pump attachment portion 42 of the one fixed band 4A is on the engagement piece 28 of the second housing 9 and on the tip side (second portion) of the engagement hole 29 (the engagement protrusion 25 of the first housing 8). It is arranged on the side opposite to the bottom 9b of the housing 9). The pump mounting portion 42 of the other fixed band 4B is arranged closer to the bottom portion 9b than the center of the second housing 9 in the axial direction. In this way, since the fuel pump 3 is supported at two locations by the two fixing bands 4A and 4B, the fuel pump 3 can be reliably fixed to the frame 30.

(Operation of fuel supply device)
Next, the operation of the fuel supply device 1 will be described.
First, since the fuel pump 3 is arranged below the fuel tank (not shown) in the direction of gravity, the fuel flows into the second housing 9 of the fuel pump 3 through the fuel intake port 26 due to its own weight. It Here, a partition wall 19 that separates the space inside the first housing 8 from the space inside the second housing 9 is provided at the fitting portion between the first housing 8 and the second housing 9. Therefore, the fuel that has flowed into the second housing 9 is prevented from leaking to the first housing 8 side.

  When the pump portion 11 is rotationally driven by the motor portion 12 while the second housing 9 is filled with fuel, the fuel is sucked into the pump portion 11 from the suction port 13 through the filter 7. The fuel discharged from the pump portion 11 is pressure-fed to the other end side (upper cup 14 side) of the pump housing 10 through the gap between the pump housing 10 and the motor portion 12. After that, the fuel flows out to the fuel take-out pipe 16 through the discharge port 15 provided in the upper cup 14 and the fuel flow path 17. Further, fuel is supplied to an engine (not shown).

  When the pressure of the fuel in the fuel take-out pipe 16 becomes higher than a predetermined pressure, the fuel in the fuel take-out pipe 16 is returned into the first housing 8 via the pressure regulator 18. Further, the vapor generated in the fuel pump 3 reaches the degassing holes 23 by utilizing the buoyancy. The vapor that has reached the degassing holes 23 is further discharged to the fuel tank via the hose.

(Assembling the fuel supply device)
Next, the assembly of the fuel supply device 1 will be described.
First, the fuel pump 3 is assembled in advance. Then, the fuel pump 3 is attached to the first housing 8 in which the pressure regulator 18 is attached in advance. At this time, the upper cup 14 of the fuel pump 3 is directed toward the opening 8a side of the first housing 8, and the fuel pump 3 is inserted into the first housing 8 as it is.

  Subsequently, the filter 7 is attached to the suction port 13 from above after the partition wall 19 is attached to the opening 8a side of the first housing 8. Further, the opening 9a of the second housing 9 is directed toward the opening 8a of the first housing 8, and the second housing 9 is fitted into the first housing 8.

At this time, the position of the engagement protrusion 25 provided on the peripheral wall 8c of the first housing 8 and the position of the engagement piece 28 of the second housing 9 are aligned. When the second housing 9 is pushed toward the first housing 8 in this state, the engagement piece 28 abuts on the engagement protrusion 25. Further, when the second housing is pushed in, the engaging piece 28 moves along the inclined surface 25a of the engaging projection 25 while elastically deforming, and the engaging piece 28 rides on the engaging projection 25.
When the engagement hole 29 of the engagement piece 28 reaches the engagement projection 25, the restoring force of the engagement piece 28 inserts the engagement projection 25 into the engagement hole 29. As a result, the second housing 9 is snap-fit fixed (engaged) to the first housing 8. Then, the two housings 8 and 9 are integrated.

Next, the fuel pump 3 is fixed to the frame 30 via the two fixing bands 4A and 4B. The fixing of the fuel pump 3 to the frame 30 is completed by fixing the connecting portion 45 provided on each of the fixing bands 4A and 4B with the screw 44.
At this time, the pump attachment portion 42 of the one fixed band 4A is on the engagement piece 28 of the second housing 9 and on the tip side (second portion) of the engagement hole 29 (the engagement protrusion 25 of the first housing 8). It is arranged on the side opposite to the bottom 9b of the housing 9). That is, the tip end side of the engagement piece 28 is pressed from the outside in the radial direction by the pump attachment portion 42 of the fixed band 4A. Therefore, the engagement piece 28 is prevented from being pushed outward in the radial direction (floating).

Next, a case where the fuel supply device 1 is disassembled will be described.
When disassembling the fuel supply device 1, the screw 44 that fixes the connecting portion 45 of each of the fixing bands 4A and 4B is removed. As a result, the pump mounting portion 42 that presses the engaging piece 28 disengages from the engaging piece 28, so that the engaging piece 28 can be expanded radially outward. The engagement between the engagement piece 28 and the engagement protrusion 25 is released by displacing the second housing 9 in the direction away from the first housing 8 while expanding the engagement piece 28 outward in the radial direction. .. Therefore, the first housing 8 and the second housing 9 can be disassembled, and the maintenance work of the fuel supply device 1 can be performed.

  As described above, in the above-described first embodiment, the housing 5 is divided into the first housing 8 and the second housing 9. The first housing 8 is provided with the engaging projection 25, while the second housing 9 is provided with the engaging piece 28 that can be engaged with the engaging projection 25, so that the two housings 8 and 9 can be integrated. Therefore, the first housing 8 and the second housing 9 can be easily disassembled, and the maintenance work of the fuel supply device 1 can be easily performed.

  Further, in order to fix the fuel pump 3 to the frame 30, two fixing bands 4A and 4B are used. The pump mounting portion 42 of one of the two fixing bands 4A and 4B is arranged on the engagement piece 28. Therefore, the engagement piece 28 is pressed radially inward by the pump mounting portion 42 of the fixed band 4A. Therefore, it is possible to prevent the engagement piece 28 from expanding (lifting) outward in the radial direction. As a result, in the state where the fuel pump 3 is fixed to the frame 30 by the two fixing bands 4A and 4B, it is possible to reliably prevent the first housing 8 and the second housing 9 from being disassembled.

Moreover, the pump mounting portion 42 of the fixed band 4A is arranged on the engagement piece 28 and further toward the tip side than the engagement hole 29. Therefore, it is possible to more reliably prevent the engagement protrusion 25 from coming off from the engagement hole 29 of the engagement piece 28 with the fixed band 4A attached.
Further, since the pump mounting portion 42 is formed in a substantially annular shape so as to surround the periphery of the fuel pump 3, it is possible to reliably press the plurality of engaging pieces 28 inward in the radial direction with substantially the same force. it can. Therefore, it is possible to more reliably prevent the first housing 8 and the second housing 9 from being disassembled.

  The engaging protrusion 25 is inclined so that the protruding height gradually increases from one end side (opening 8a side, second housing 9 side) of the first housing 8 toward the other end side of the second housing 8. It has a surface 25a. Therefore, when the engagement piece 28 is snap-fitted and fixed to the engagement protrusion 25, the engagement piece 28 can be smoothly expanded by the inclined surface 25a. Therefore, the second housing 9 can be easily assembled to the first housing 8.

  Further, the side surface 25b of the engaging projection 25 opposite to the inclined surface 25a is a flat surface along the radial direction (perpendicular to the axial direction). For this reason, even if a force acts on the second housing 9 that is snap-fit fixed in the direction of coming out of the first housing 8, for example, the force that pushes outwardly in the radial direction does not act on the engagement piece 28. .. Therefore, the engagement state between the engagement protrusion 25 and the engagement piece 28 can be reliably maintained.

In the above-described first embodiment, the case where the engagement protrusion 25 is provided on the first housing 8 and the engagement piece 28 is provided on the second housing 9 has been described. However, the invention is not limited to this, and the engagement piece 28 may be provided on the first housing 8 and the engagement protrusion 25 may be provided on the second housing 9.
Further, in the above-described first embodiment, in the case where the engagement projection 29 is formed with the engagement hole 29 into which the engagement projection 25 can be inserted, and thereby the engagement projection 25 and the engagement piece 28 are snap-fit fixed. I explained. However, the present invention is not limited to this, as long as the engagement projection 25 and the engagement piece 28 can be engaged with each other. For example, the engagement piece 28 may be formed with an engagement recess that can receive the engagement protrusion 25 instead of the engagement hole 29.

  Further, in the above-described first embodiment, the case where the fixing bands 4A and 4B are configured by the substantially annular frame mounting portion 41, the substantially annular pump mounting portion 42, and the coupling support portion 43 has been described. However, the present invention is not limited to this, and the frame attachment portion 41 may be changed according to the shape of the attached body (frame 30) such as a substantially annular shape other than a circular shape. The pump mounting portion 42 may have any shape as long as it can press the engagement piece 28 from the outside in the radial direction. The connection support portion 43 may be omitted depending on the layout of the fuel supply device 1 or the like, or may be arbitrarily changed in shape.

  Further, in the above-described first embodiment, the case where the pump attachment portion 42 of the fixed band 4A is arranged on the engagement piece 28 and on the tip side of the engagement hole 29 has been described. However, the present invention is not limited to this, and it may be arranged on the engagement piece 28. With this configuration, the pump mounting portion 42 can prevent the engagement piece 28 from expanding (lifting) outward in the radial direction.

(Second embodiment)
Next, a second embodiment of the present invention will be described based on FIGS. 3 and 4. The same aspects as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted (the same applies to the following third embodiment).
3 is a perspective view of the fuel supply device 201, and FIG. 4 is a view on arrow A of FIG.
As shown in FIGS. 3 and 4, the difference between the first embodiment and the second embodiment is that, in the second embodiment, one fixing member 204 is used instead of the fixing bands 4A and 4B of the first embodiment. Therefore, the fuel pump 3 is fixed to the frame 30 of the vehicle 2.

(Fixing member)
The fixing member 204 is opposed to the main body 243 interposed between the fuel pump 3 and the frame 30 in a direction orthogonal to the extending direction of the frame 30 in the main body 243 (the extending direction of the fuel pump 3) 2 It is provided with a first arm portion 251 and a second arm portion 252 that extend from each of the two side surfaces 243a, 243b (first side surface 243a, second side surface 243b).

  The main body 243 is formed in a rectangular parallelepiped block shape so that the extending direction of the frame 30 is the lateral direction. An arc-shaped first recess 253 is formed on one surface of the main body 243 on the fuel pump 3 side when viewed from the lateral direction of the main body 243. On the other hand, on the other surface of the main body 243 on the frame 30 side, a second concave portion 254 having an arc shape when viewed from the lateral direction of the main body 243 is formed.

In addition, the main body 243 is formed so that the side surfaces thereof are flat except for the recesses 253 and 254. However, the present invention is not limited to this, and it is sufficient that at least the two side surfaces 243a and 243b of the first side surface 243a and the second side surface 243b are formed flat.
The radius of curvature of the first recess 253 is set to be substantially the same as the radius of curvature of the first housing 8 and the second housing 9. On the other hand, the radius of curvature of the second recess 254 is set to be slightly larger than the radius of curvature of the frame 30.

The first arm portion 251 is made of elastic rubber and formed in a band shape. The first arm portion 251 is curvedly extended from the first side surface 243 a of the main body portion 243 along the outer peripheral surfaces of the first housing 8 and the second housing 9. The first arm portion 251 has a tip extending to a second side surface 243b located on the opposite side of the first side surface 243a of the main body portion 243 with the fuel pump 3 interposed therebetween.
The axial width W1 of the fuel pump 3 in the first arm portion 251 (hereinafter simply referred to as the width W1 of the first arm portion 251) is substantially the same as the extension length of the engagement piece 28 of the second housing 9. It is set. Therefore, the first arm portion 251 covers the entire engagement piece 28 including the engagement protrusion 25 and the engagement hole 29.

The second arm portion 252 is made of elastic rubber and formed in a band shape. The second arm portion 252 is curvedly extended from the second side surface 243b of the main body portion 243 along the outer peripheral surface of the frame 30. The second arm portion 252 has a tip extending to the first side surface 243 a of the body portion 243.
The axial width W2 of the fuel pump 3 in the second arm portion 252 (hereinafter, simply referred to as the width W2 of the second arm portion 252) is set to be the same as the width W1 of the first arm portion 251.
The width W3 in the lateral direction of the main body 243 is also set to be the same as the width W1 of the first arm 251 and the width W2 of the second arm 252.

  Here, rectangular engaging holes 251a and 252a that are long in the widths W1 and W2 directions are formed at the tip of the first arm 251 and the tip of the second arm 252, respectively. On the other hand, on the second side surface 243b of the main body 243, a first engagement protrusion 243c engageable with the engagement hole 251a is formed at a position corresponding to the engagement hole 251a of the first arm 251. There is. In addition, a second engagement protrusion 243d that can engage with the engagement hole 252a is formed on the first side surface 243a of the main body portion 243 at a position corresponding to the engagement hole 252a of the second arm portion 252. There is. The arms 251 and 252 are snap-fitted and fixed to the main body 243 by the engagement holes 251a and 252a and the engagement protrusions 243c and 243d.

  Further, the length of the first arm portion 251 is slightly extended when the first arm portion 251 is laid along the outer peripheral surfaces of the first housing 8 and the second housing 9, and the first arm portion is attached to the main body portion 243. The length 251 is set to a fixed snap fit. Further, the length of the second arm portion 252 is snapped and fixed to the main body portion 243 in a slightly extended state when the second arm portion 252 is laid along the outer peripheral surface of the frame 30. It is set to length.

(Assembling the fuel supply device)
Next, the assembly of the fuel supply device 201 will be described. Since the assembly of the fuel pump 3 is the same as that of the first embodiment, the description thereof will be omitted.
When fixing the fuel pump 3 to the frame 30 via the fixing member 204, the engagement between the engagement protrusions 243c and 243d of the body portion 243 and the engagement holes 251a and 252a of the arm portions 251 and 252 are released in advance. I'll do it.

  Then, the fuel pump 3 is arranged on the first recess 253 of the main body 243. At this time, the fuel pump 3 is arranged such that the entire engagement piece 28 including the engagement protrusion 25 and the engagement hole 29 of the fuel pump 3 is located on the first recess 253. Further, at this time, the radius of curvature of the first recess 253 is set to be substantially the same as the radius of curvature of the first housing 8 and the second housing 9, so that the adhesion of the fuel pump 3 to the main body 243 is enhanced.

  Subsequently, the first arm portion 251 is wound around the fuel pump 3 so as to cover the first housing 8 and the second housing 9 from the radial outside. Then, the engagement hole 251a of the first arm portion 251 is engaged with the first engagement protrusion 243c of the main body portion 243. As a result, the first arm 251 is snap-fitted and fixed to the main body 243. At this time, since the second side surface 243b on which the first engaging protrusion 243c is formed to project is formed flat, the first arm portion 251 can be easily engaged with the first engaging protrusion 243c. Further, since the entire engagement piece 28 of the fuel pump 3 is located on the first recess 253, the first arm portion 251 covers the entire engagement piece 28.

Then, the second recess 254 of the main body 243 is brought into contact with the frame 30. At this time, since the radius of curvature of the second recess 254 is set to be slightly larger than the radius of curvature of the frame 30, the frame 30 is arranged on the second recess 254 regardless of the size of the frame 30. It is possible.
Then, with the second recess 254 of the main body 243 in contact, the second arm 252 is hung around the frame 30 so as to cover the frame 30 from the outside in the radial direction. Then, the engagement hole 252a of the second arm portion 252 is engaged with the second engagement protrusion 243d of the main body portion 243. As a result, the second arm portion 252 is snap-fitted and fixed to the body portion 243.

Here, each of the arms 251 and 252 is formed of rubber having elasticity. When the arms 251 and 252 are snap-fitted and fixed to the main body 243, the arms 251 and 252 are in a slightly stretched state. Therefore, the arm portions 251 and 252 are firmly fixed to the main body portion 243 by the restoring force (elastic force) acting on the arm portions 251 and 252. Further, the fuel pump 3 is pressed against the fixing member 204 by the restoring force (elastic force) acting on each of the arms 251 and 252. Therefore, the fuel pump 3 is firmly fixed to the fixing member 204. Similarly, the fixing member 204 is firmly fixed to the frame 30.
In particular, the radius of curvature of the first recess 253 of the main body 243 is set to be substantially the same as the radius of curvature of the first housing 8 and the second housing 9, so the fuel pump 3 rattles with respect to the fixing member 204. Can be prevented.

  As described above, in the above-described second embodiment, the fuel pump 3 is fixed to the frame 30 of the vehicle 2 by the single fixing member 204. The fixing member 204 is opposed to the main body portion 243 interposed between the fuel pump 3 and the frame 30 in a direction orthogonal to the extending direction of the frame 30 in the main body portion 243 (the extending direction of the fuel pump 3) 2 It is provided with a first arm portion 251 and a second arm portion 252 that respectively extend from one side surface (first side surface 243a, second side surface 243b). Then, the fuel pump 3 can be firmly fixed to the frame 30 by utilizing the elasticity of the arms 251 and 252. Further, since the arms 251 and 252 have elasticity, the arms 251 and 252 can be easily handled, and the fuel pump 3 can be easily attached to the fixing member 204. Furthermore, the fixing member 204 can be easily assembled to the frame 30.

  The first arm portion 251 covers the engagement projection 25 and the engagement hole 29 that engage the housings 8 and 9 of the fuel pump 3. Therefore, it is possible to reliably prevent the engagement piece 28 of the second housing 9 from being pressed by the first arm portion 251 and the engagement of the housings 8 and 9 from being released.

  Further, on the main body portion 243 of the fixing member 204, two side surfaces 243a, 243b (two side surfaces 243a, 243b located on both sides of the fuel pump 3 sandwiching each other) are opposed to each other in a direction orthogonal to the extending direction of the fuel pump 3. The engaging protrusions 243c and 243d for engaging the arm portions 251 and 252, respectively, are formed. The main body 243 has a block shape, and two side surfaces 243a and 243b face each other.

Therefore, when engaging the arms 251 and 252, the main body 243 can secure sufficient mechanical strength. Therefore, it becomes possible to sufficiently secure the fixing strength of the first arm portion 251 and the second arm portion 252 to the main body portion 243.
Moreover, since the side surfaces 243a and 243b are formed flat, the first arm portion 251 can be easily engaged with the first engagement protrusion 243c. Therefore, the workability of snap-fitting and fixing the arms 251 and 252 to the main body 243 can be improved.

  Here, when the fuel pump 3 is assembled to the frame 30 by the fixing member 204, vibration tends to occur along the direction in which the fuel pump 3 approaches and separates from the frame 30. In such a situation, since the arm portions 251 and 252 are snap-fitted and fixed to the two side surfaces 243a and 243b facing each other in the direction orthogonal to the vibration direction, the arm portions 251 and 252 of the arm portion 251 and 252 with respect to the main body portion 243 are fixed. It is possible to make it difficult to release the snap fit fixation. Further, the self-weight of the fuel pump 3 is not received at the engagement portion between the main body portion 243 and the first arm portion 251 or the engagement portion between the main body portion 243 and the second arm portion 252. Therefore, it is possible to make it difficult to reliably release the snap-fit fixation of the arms 251 and 252 with respect to the main body 243.

  In the above-described second embodiment, the case where the first arm 251 extends from the first side surface 243a of the main body 243 and the second arm 252 extends from the second side surface 243b of the main body 243. I explained. However, the present invention is not limited to this, and the arms 251 and 252 may extend from one of the two side surfaces 243a and 243b of the main body 243.

(Third Embodiment)
Next, a third embodiment of the present invention will be described based on FIG.
FIG. 5 is a plan view of the fuel supply device 301 of the third embodiment, and corresponds to FIG. 4 of the above-described second embodiment.
As shown in FIG. 5, the difference between the second embodiment and the third embodiment described above is that the structure of the fixing member 204 of the second embodiment and the structure of the fixing member 304 of the third embodiment are different. It is in.

(Fixing member)
The fixing member 304 is similar to the second embodiment described above in that the fixing member 304 has a main body 343 interposed between the fuel pump 3 and the frame 30.
From the two side surfaces 343a and 343b (first side surface 343a and second side surface 343b) facing each other in the direction orthogonal to the extending direction of the frame 30 (extending direction of the fuel pump 3), the main body portion 343 is located on the fuel pump 3 side. Two arm portions 351 and 352 (a first arm portion 351 and a second arm portion 352) extend toward. Further, two arm portions 353, 354 (third arm portion 353, fourth arm portion 354) are extended from the two side surfaces 343a, 343b toward the frame 30 on the main body portion 343.

  The first arm portion 351 is made of elastic rubber and formed in a band shape. The first arm portion 351 is curvedly extended from the first side surface 343 a of the main body portion 343 along the outer peripheral surfaces of the first housing 8 and the second housing 9. The length of the first arm portion 351 is set to cover about half of the outer peripheral surfaces of the first housing 8 and the second housing 9.

  The second arm portion 352 is made of elastic rubber and formed in a band shape. The second arm portion 352 is curvedly extended from the second side surface 343b of the main body portion 343 along the outer peripheral surfaces of the first housing 8 and the second housing 9. The length of the second arm portion 352 is set to a length that covers about half of the outer peripheral surfaces of the first housing 8 and the second housing 9.

The tip end portion of the first arm portion 351 and the tip end portion of the second arm portion 352 overlap each other on the side opposite to the main body portion 343 of the first housing 8 and the second housing 9. Engagement portions 351a and 352a are formed on the respective arm portions 351 and 352 at the overlapping portions. The engaging portions 351a and 352a are formed to be engageable with each other. As a result, the first arm portion 351 and the second arm portion 352 are engaged with each other.
Note that each of the engaging portions 351a and 352a may be configured such that one is a projection and the other is a recess or a hole that receives the projection. In addition, any other structure may be used as long as they can be engaged with each other.

  The third arm portion 353 is made of elastic rubber and formed in a band shape. The third arm portion 353 is curvedly extended from the first side surface 343 a of the main body portion 343 along the outer peripheral surface of the frame 30. The length of the third arm portion 353 is set to cover about half the outer peripheral surface of the frame 30.

  The fourth arm portion 354 is made of elastic rubber and formed in a band shape. The fourth arm portion 354 is curvedly extended from the second side surface 343b of the main body portion 343 along the outer peripheral surface of the frame 30. The length of the fourth arm 354 is set to cover about half the outer peripheral surface of the frame 30.

The tip end of the third arm 353 and the tip end of the fourth arm 354 overlap each other on the side opposite to the main body 343 of the frame 30. Engagement portions 353a and 354a are formed on the respective arm portions 353 and 354 at the overlapping portions. The respective engaging portions 353a and 354a are formed to be engageable with each other. As a result, the third arm portion 353 and the fourth arm portion 354 are engaged with each other.
Note that each of the engaging portions 353a and 354a may be configured such that one is a protrusion and the other is a recess or a hole that receives the protrusion. In addition, any other structure may be used as long as they can be engaged with each other.

  Here, all the widths (hereinafter, simply referred to as widths) of the body portion 343 and the arm portions 351 to 354 in the direction orthogonal to the extending direction of the frame 30 (the axial direction of the fuel pump 3) are set to be the same. There is. The width of the main body 343 and each of the arms 351 to 354 is set to be substantially the same as the extension length of the engagement piece 28 of the second housing 9. Therefore, each of the arm portions 351 to 354 covers the entire engagement piece 28 including the engagement protrusion 25 and the engagement hole 29.

Therefore, according to the above-described third embodiment, the same effect as that of the above-described second embodiment is obtained.
Further, according to the above-described third embodiment, as in the above-described second embodiment, the fuel pump 3 is fixed to the fixing member 204 by the one first arm portion 251, or the one second arm portion 252 is used. It is not necessary to attach the fixing member 204 to the frame 30. Therefore, even when the fuel supply device 301 is assembled in a narrow space, the assembling workability is not impaired. Therefore, the user-friendly fuel supply device 301 can be provided.

  In addition, in the above-mentioned 2nd Embodiment and 3rd Embodiment, the width of each arm 251,252,351-354 demonstrated the case where it was the same as the width of the main-body parts 243,343. Further, the width of each of the arms 251, 252, 351 to 354 has been described as being set to be substantially the same as the extension length of the engagement piece 28 of the second housing 9. However, the width of each of the arm portions 251, 252, 351 to 354 is not limited to this, and may not be the same as the width of the main body portions 243 and 343. Further, the width of each of the arms 251, 252, 351 to 354 may be different from the extension length of the engagement piece 28 of the second housing 9. However, the engagement protrusion 25 and the engagement hole 29 that engage the two housings 8 and 9 of the fuel pump 3 may be covered from the outside in the radial direction by the arms 251, 252, 351 to 354.

The present invention is not limited to the above-described embodiments, and includes various modifications of the above-described embodiments without departing from the spirit of the present invention.
For example, in the above-described embodiment, the case where the fuel supply device 1 is for supplying fuel to the engine (not shown) of the vehicle 2 has been described. However, the configuration of the fuel supply device 1 is not limited to this, and the configuration of the fuel supply device 1 can be adopted in various devices that require fuel supply.

In addition, in the above-described embodiment, the case where the pump unit 11 is, for example, a non-volume type regenerative pump having an impeller has been described. However, the pump section 11 is not limited to this, and various well-known pump structures known by names such as a centrifugal pump and a centrifugal pump can be adopted as the pump section 11.
The motor unit 12 is not limited to the DC motor with a brush, and various motors such as a brushless motor can be adopted.

According to the above fuel supply device, the housing that encloses the pump main body is divided into the first housing and the second housing, and these two housings are engaged by the housing engaging piece and the engaging portion. As a result, the housing can be disassembled. Therefore, the maintenance work of the fuel supply device can be facilitated.
Further, the pump mounting portion for fixing the fuel pump to the mounted body has an engaging piece pressing portion for pressing the housing engaging piece from the outside in the radial direction of each housing. By pressing the housing engaging piece by the engaging piece pressing portion, it is possible to prevent the first housing and the second housing from being disassembled. Therefore, the disassembly of the fuel pump can be prevented.

1, 201, 301... Fuel supply device, 3... Fuel pump, 4A, 4B... Fixed band (fixed member), 5... Housing, 6... Pump body, 8... First housing, 8a, 9a... Opening part, 9... 2nd housing, 25... Engagement projection (housing engagement part), 28... Engagement piece (housing engagement piece), 29... Engagement hole (hole, recess), 30... Frame (attached body), 41 ... Frame mounting portion (attached body mounting portion), 42... Pump mounting portion (engaging piece pressing portion), 204... Fixing member, 243, 343... Main body portion, 243a, 343a... First side surface (one side surface), 243b , 343b... Second side surface (other side surface), 243c... First engaging protrusion (first engaging portion), 243d... Second engaging protrusion (second engaging portion), 251... First arm portion, 251a... Engagement hole (first engagement part), 252... Second arm part, 252a... Engagement hole (second engagement part), 351... First arm part (third arm part), 351a, 352a... Engagement Part (third engaging part), 352... Second arm part (fourth arm part), 353... Third arm part... Third arm part (fifth arm part), 353a, 354a... Engaging part (fourth part) Engaging portion), 354... Fourth arm portion (sixth arm portion)

Claims (10)

A fuel pump having a pump main body, and a first housing and a second housing having a bottomed tubular shape and fitting the openings to each other to enclose the pump main body;
A fixing member for fixing the fuel pump to the attached body,
Equipped with
An elastically deformable housing engaging piece extending toward the other is provided in either one of the opening of the first housing and the opening of the second housing, and the opening of the first housing and the opening of the second housing are provided. A housing engaging portion that is engageable with the housing engaging piece is provided in the other one of the openings of the second housing,
The fixing member is
A pump mounting portion mounted on the fuel pump,
A mounted body mounting portion mounted on the mounted body,
A main body portion interposed between the fuel pump and the attached body,
Equipped with
The pump attachment portion has an engagement piece pressing portion that presses the housing engagement piece from a radial outside of the first housing and the second housing ,
The engagement piece pressing portion is a first arm portion that extends from the main body portion and is elastically deformable so as to cover the first housing and the second housing from a radial outside.
The fuel supply device is provided with a first engaging portion capable of engaging the main body portion and the first arm portion on the tip end side of the main body portion and the first arm portion . The housing engagement portion is an engagement protrusion that protrudes outward in the radial direction,
The housing engagement piece is formed with either a recess or a hole capable of receiving the engagement projection,
The fuel supply device according to claim 1, wherein the engagement piece pressing portion is arranged closer to the tip end side of the housing engagement piece than the recess and the hole. The fuel supply device according to claim 1 or 2, wherein the engagement piece pressing portion is formed in a ring shape so as to surround one of the first housing and the second housing. The housing engagement portion is an engagement protrusion that protrudes outward in the radial direction,
The housing engagement piece is formed with either a recess or a hole capable of receiving the engagement projection,
The fuel supply device according to any one of claims 1 to 3, wherein the first arm portion is formed so as to cover the recess and the hole from the outside in the radial direction. The attached body is a rod-shaped body,
The attached body attaching portion is a second arm portion extending from the main body portion and elastically deformable so as to cover the attached body from the outside in the radial direction,
The distal end side of the main body portion and said second arm portion, to any one of claims 4 and said body portion and the second arm portions claim 1 provided with a second engaging portion engageable The fuel supply device described. The first arm portion extends from one side surface of the main body portion,
The second arm portion extends from the other side surface located on the opposite side of the one side surface of the main body portion with the fuel pump interposed therebetween,
The first engagement portion is provided on the other side surface of the main body portion and a tip side of the first arm portion,
The fuel supply device according to claim 5 , wherein the second engagement portion is provided on the one side surface of the main body portion and a tip end side of the second arm portion. A fuel pump having a pump main body, and a first housing and a second housing having a bottomed tubular shape and fitting the openings to each other to enclose the pump main body;
A fixing member for fixing the fuel pump to the attached body,
Equipped with
An elastically deformable housing engaging piece extending toward the other is provided in either one of the opening of the first housing and the opening of the second housing, and the opening of the first housing and the opening of the second housing are provided. A housing engaging portion that is engageable with the housing engaging piece is provided in the other one of the openings of the second housing,
The fixing member is
A pump mounting portion mounted on the fuel pump,
A mounted body mounting portion mounted on the mounted body,
A main body portion interposed between the fuel pump and the attached body,
Equipped with
The engagement piece pressing portion extends from both sides of the main body portion with the fuel pump interposed therebetween, and is elastically deformable so as to cover the first housing and the second housing from the outside in the radial direction, The fourth arm,
A third engaging portion capable of engaging the third arm portion and the fourth arm portion is provided on the tip end side of the third arm portion and the tip end side of the fourth arm portion.
Fuel supply device. The housing engagement portion is an engagement protrusion that protrudes outward in the radial direction,
The housing engagement piece is formed with either a recess or a hole capable of receiving the engagement projection,
The fuel supply device according to claim 7 , wherein the third arm portion and the fourth arm portion are formed so as to cover the recessed portion and the hole portion from a radially outer side. The attached body is a rod-shaped body,
The attached body attaching portion includes a fifth arm portion and a sixth arm portion which extend from both sides of the main body portion with the fuel pump interposed therebetween and which are elastically deformable so as to cover the attached body from the radial outside. Yes,
The distal end side of the fifth arm portion, and the the tip end side of the sixth arm portions, according to claim 7 or claims and said fifth arm portion and the sixth arm portion provided with a fourth engaging portion engageable Item 8. The fuel supply device according to item 8 . The mounted body is a vehicle frame,
The fuel supply device according to any one of claims 1 to 9 , wherein the fuel pump is for supplying fuel to the engine of the vehicle.

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