JP4815404B2 - Grommet and small vehicle fuel hose support structure - Google Patents

Description

  The present invention provides an improvement in a grommet which is formed by an elastic body having an insertion hole through which a hose is inserted, and is elastically attached to the hose so as to support an arbitrary position in the longitudinal direction of the hose on a support body, and the grommet The present invention relates to an improvement of a fuel hose support structure for a small vehicle using a hood.

In the scooter type vehicle, by attaching a grommet in the middle of the fuel hose connecting the fuel pump provided in the fuel tank and the fuel injection valve provided in the power unit, the grommet is brought into contact with the upper surface of the fuel tank, Patent Document 1 discloses a structure in which a longitudinal intermediate portion of a fuel hose is supported by an upper surface of a fuel tank.
JP 2007-55542 A

  The grommet disclosed in Patent Document 1 has a slit extending over the entire length in the axial direction, and the grommet is mounted in the middle of the fuel hose by opening the slit to insert the fuel hose into the insertion hole of the grommet. I am doing so. However, since the slit is provided in the elastic body along one radial direction of the insertion hole, the slit is opened after the fuel hose is inserted into the insertion hole so that the grommet is not dropped from the fuel hose. In addition, after insertion into the insertion hole of the fuel hose, it is necessary to perform post-processing such as wrapping tape around the outer periphery of the elastic body or preventing the slit from being opened with adhesive, which increases the number of parts and assembly man-hours. There is also a problem that the cost increases.

  In a small vehicle in which a fuel tank is arranged below the low-floor type floor and the power unit is swingably supported on the body frame, the fuel hose can be securely and stably held against the vibration of the power unit. desired.

  The present invention has been made in view of such circumstances, and reduces the number of parts and the number of assembling steps for mounting on the hose, and in turn reduces the cost, and the fuel hose against vibration of the power unit. It is an object of the present invention to provide a fuel hose support structure for a small vehicle that can be reliably and stably supported.

  In order to achieve the above object, the invention described in claim 1 is characterized in that an insertion hole through which the hose is inserted is provided in the elastic body, and the hose is elastically supported so that an arbitrary position in the longitudinal direction of the hose is supported by the support body. In the grommet to be attached to the elastic body, the elastic body is provided with a recess extending in the entire axial direction of the insertion hole so that the inner end is opened at one place in the circumferential direction of the insertion hole and the outer end is closed. The insertion hole can be expanded so that the hose can be inserted by spreading.

  According to a second aspect of the invention, in addition to the configuration of the first aspect of the invention, the concave portion is widened by inserting the hose through the insertion hole.

  The invention according to claim 3 is for hose support, wherein an insertion hole through which the hose is inserted is provided in the elastic body, and the hose is elastically attached to the hose so as to support the arbitrary position in the longitudinal direction of the hose on the support body. In the grommet, an incision portion extending in the axial direction of the insertion hole is provided in the elastic body with both ends being passed through the inner periphery of the insertion hole and the outer periphery of the elastic body, and a bending portion is provided in the intermediate portion. It is possible to open the portion and insert the hose into the insertion hole.

  The invention according to claim 4 is a grommet that is formed by providing an elastic body with an insertion hole through which a hose is inserted, and is elastically attached to the hose to support an arbitrary position in the longitudinal direction of the hose on a support body. The insertion hole is provided in the elastic body with an oval cross-sectional shape, and the insertion hole is shortened by compressing the elastic body in the long diameter direction of the insertion hole when the hose is inserted through the insertion hole. It is possible to enlarge in the radial direction.

  According to a fifth aspect of the invention, in addition to the configuration of the invention according to any one of the first to fourth aspects, the outer peripheral surface of the cylindrical elastic body is brought into contact with the outer surface of the support body. It is characterized by being substantially flat when viewed from the side.

  Further, in the invention according to claim 6, the grommet according to any one of claims 1 to 5 can swing on the fuel pump provided in the fuel tank disposed below the low floor type floor and on the vehicle body frame. The fuel tank is attached to a fuel hose connecting to a fuel injection valve provided in a power unit supported by the fuel unit, and is in contact with an outer surface of the fuel tank in the vicinity of a flange portion provided on the outer periphery.

  In addition, the fuel tank 32 of an Example respond | corresponds to the support body of this invention.

  According to the first aspect of the present invention, the elastic body is provided with the recess extending over the entire length in the axial direction of the insertion hole so that the inner end is opened at one place in the circumferential direction of the insertion hole and the outer end is closed. Since the insertion hole is enlarged so that the hose can be inserted, the insertion of the hose into the insertion hole can be facilitated, and the grommet can be firmly fixed to the hose by utilizing the tightening force of the elastic body. Therefore, the grommet can be firmly fixed to the hose without using a tape or an adhesive, and the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost. Further, even when the resilient force of the elastic body is increased to increase the tightening force, the insertion work into the insertion hole of the hose can be easily performed.

  According to the second aspect of the present invention, the insertion hole can be enlarged by expanding the recess when the hose is inserted through the insertion hole, so that the insertion of the hose into the insertion hole becomes easier.

  According to the third aspect of the present invention, the elastic body is provided with the incision portion extending through the inner circumference of the insertion hole and the outer circumference of the elastic body and having a bent portion at the middle portion and extending over the entire axial length of the insertion hole. Since the incision can be opened and the hose can be inserted into the insertion hole, the hose is inserted into the insertion hole from the incision with an external force applied so as to open the incision. In the state where the insertion of the hose into the insertion hole is facilitated and the external force acting on the elastic body is stopped and the incision is closed, the grommet is detached from the hose due to the middle of the incision being bent. The grommet can be firmly fixed to the outer surface of the hose by tightening with the elastic force of the elastic body while preventing this. Therefore, the grommet can be firmly fixed to the hose without using a tape or an adhesive, and the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost.

  According to the invention of claim 4, the elastic body is provided with an insertion hole having an oblong cross-sectional shape, and the insertion hole is expanded in the minor axis direction by compressing the elastic body in the major axis direction of the insertion hole. Therefore, the elastic body can be compressed and the hose can be easily inserted into the insertion hole, and the grommet can be firmly fixed to the hose by utilizing the tightening force of the elastic body. Therefore, the grommet can be firmly fixed to the hose without using a tape or an adhesive, and the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost.

  According to the invention described in claim 5, the elastic body is cylindrical, and the outer surface of the elastic body is formed substantially flat in a side view so as to abut on the outer surface of the support. The friction force between the support and the grommet is made relatively large so that the hose is in contact with the support in a wide range, and the hose is reliably supported while the hose is reliably prevented from contacting the support. be able to.

  According to a sixth aspect of the present invention, in the small vehicle in which the fuel tank is disposed below the low floor type floor and the power unit is swingably supported on the vehicle body frame, the fuel pump provided in the fuel tank; The fuel hose connecting the fuel injection valve provided in the power unit is equipped with the grommet according to any one of claims 1 to 4, and the fuel tank has an outer surface near the flange portion on the outer periphery of the fuel tank. Since the grommet is abutted, the position of the grommet can be stabilized by bringing the grommet into contact with the fuel tank in the vicinity of the relatively strong flange, and the fuel hose can be reliably secured against vibration of the power unit. Can be protected.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

  1 to 7 show a first embodiment of the present invention. FIG. 1 is a left side view of a scooter type motorcycle, FIG. 2 is a perspective view showing a part of a body frame, and FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, FIG. 5 is a perspective view of the grommet, and FIG. 6 is a grommet before the fuel hose is inserted (A) and after the fuel hose is inserted (B). FIG. 7 is a sectional view taken along line 6-6 in FIG. 3, and FIG. 7 is a sectional view taken along line 7-7 in FIG.

  First, in FIG. 1, a scooter type motorcycle that is a small vehicle includes a front wheel WF that is steered by a steering handle 11, an engine E, and a belt-type continuously variable transmission M that continuously changes the output of the engine E. And a rear wheel WR driven by a swing type power unit P. The power unit P is supported by a body frame F so as to be swingable.

  Referring also to FIG. 2, the vehicle body frame F includes a head pipe 13 that pivotally supports the front wheel WF and supports the front fork 12 to which the steering handle 11 is connected, and the head pipe 13 A down frame 14 extending downwardly from 13, a pair of left and right lower frames 15, 15 integrally connected to both sides of the lower end portion of the down frame 14, and the rear ends of both lower frames 15. Are connected to the rear ends of the lower frames 15. Thus, a seat frame 18 rising upward from the rear frames 17 is provided, and the lower frames 15 are opened upward. It is formed to have a U-shaped cross section.

  The power unit P is supported by a stay 20 provided at an intermediate portion between the rear frames 17 through a support shaft 21 so as to be swingable. A rear cushion unit is provided between the rear portion of the power unit P and the rear frame 17. 22 is provided.

  3 and 4 together, the engine body 23 in the engine E is in a posture in which the cylinder axis C is inclined upward until it becomes substantially horizontal, and a cylinder constituting a part of the engine body 23 A throttle body 27 is connected via an intake pipe 26 to an intake pipe portion 25 provided integrally with the upper side surface of the head 24, and an air cleaner 28 disposed on the left side of the rear wheel WR and above the rear portion of the power unit P. Is connected to the upstream end of the throttle body 27. A fuel injection valve 29 is attached to the intake pipe portion 25.

  Referring to FIG. 1, an upstream end of an exhaust pipe 30 is connected to a lower side surface of the cylinder head 24, and a downstream end of the exhaust pipe 30 is connected to an exhaust muffler 31 disposed on the right side of the rear wheel WR. Connected.

  A fuel tank 32 is disposed between the lower frames 15 in the vehicle body frame F. The fuel tank 32 is formed by connecting a flange portion 34a provided on the outer periphery of a cover 34 to a flange portion 33a provided on an upper portion of a box-shaped tank body 33 opened upward. A flange portion 35 configured by the portions 33a and 34a and disposed on the outer periphery of the fuel tank 32 is fastened to the upper surfaces of the lower frames 15 by a plurality of bolts 36, 36.

  A part of the power unit P and a part of the vehicle body frame F are covered with a vehicle body cover 37 made of synthetic resin, and an occupant sitting on the vehicle seat 19 may put his / her feet on the vehicle body cover 37. A low floor type floor 38 is formed, and the fuel tank 32 is disposed below the floor 38.

  2 and 4, a fall sensor 40 is attached to the lower end portion of the down frame 14 in the vehicle body frame F so as to be positioned in front of the fuel tank 32. The fall sensor 40 is for detecting the fall of the motorcycle and stopping the fuel supply and ignition to the engine E. The stay 41 attached to the lower end of the down frame 14 with a bolt 42 includes: A support portion 41a that is bifurcated downward is provided, and the fall sensor 40 is attached to the support portion 41a. That is, collars 43, 43 are mounted on both sides of the fall sensor 40 via elastic members 44, 44, and bolts 45, 45 inserted through the collars 43 ... are weld nuts 46, fixed to the support portion 41a. 46, and the bolts 45 are tightened so that the fall sensor 40 is attached to the stay 41 so as to be surrounded by the down frame 14 and the lower frame 15 of the vehicle body frame F and the fuel tank 32. It is done.

  The fuel tank 32 is provided with a fuel pump 48 so that a part protrudes upward from the upper surface of the fuel tank 32. The fuel pump 48 and the intake pipe portion 25 of the cylinder head 24 in the power unit P are provided. A fuel hose 49 is connected to the fuel injection valve 29 provided on the fuel injection valve 29.

  An intermediate portion of the fuel hose 49 is supported by the fuel tank 32, the lower frame 15 of the vehicle body frame F, and the cylinder head 24.

  A grommet 50A according to the present invention is attached to the fuel hose 49 in the vicinity of the flange portion 35 provided on the outer periphery of the fuel tank 32, and the grommet 50A is disposed on the upper surface of the fuel tank 32 in the vicinity of the flange portion 35. It abuts and is supported alone without using a clamp or the like. A grommet 51 is attached to the fuel hose 49 in front of the engine body 23, and a clamper 54 that holds the grommet 51 is fastened to the support plate 55. On the other hand, a bracket 56 is fastened to the rear portion of the left lower frame 15 in the body frame F together with the front portion of the left rear frame 17 by two bolts 57, 57, and the support plate 55 is attached to the bracket 56. To be concluded. Further, a grommet 52 is attached to the fuel hose 49 on the right side of the cylinder head 24 in the engine body 23, and a clamper 58 that holds the grommet 52 is fastened to the cylinder head 24 with a bolt 69.

  5 to 7, the grommet 50 </ b> A includes an insertion hole 59 through which the fuel hose 49 is inserted in the elastic body 60, and a fuel hose to support an arbitrary position in the longitudinal direction of the fuel hose 49 on the fuel tank 32. 49, and a recess 61 extending over the entire length in the axial direction of the insertion hole 59 so that the inner end is opened at one circumferential direction of the insertion hole 59 and the outer end is closed. Provided. Moreover, at least one end along the axial direction of the insertion hole 59, in this embodiment, one end is provided with a tapered surface 59a whose diameter increases toward the outside in the axial direction.

The grommet 50A allows the insertion hole 59 to be expanded so that the fuel hose 49 can be inserted by expanding the recess 61. In this embodiment, the recess 61 The fuel hose 49 extends through the hole 59. That is, as shown in FIG. 6A, in a natural state where the fuel hose 49 is not inserted, the diameter d ₁ of the insertion hole 59 is set smaller than the diameter d ₂ of the fuel hose 49 (d ₁ <d ₂ ). Has been. When Thus by inserting the fuel hose 49 to the through hole 59, the recess 61, the fuel hose 49 while the width before insertion of the fuel hose 49 to the through hole 59 was t _1, the insertion hole 59 6B, as shown in FIG. 6B, the width expands to be t ₂ (> t ₁ ), thereby expanding the insertion hole 59 so that the fuel hose 49 can be inserted. The fuel hose 49 can be easily inserted into the insertion hole 59. In addition, after the fuel hose 49 is inserted into the insertion hole 59, the elastic body 60 elastically tightens the fuel hose 49.

  An external force that compresses the elastic body 60 in the radial direction passing through the recess 61 of the insertion hole 59 is applied to the elastic body 60 to expand the recess 61 to enlarge the insertion hole 59. In this state, the insertion hole 59 is expanded. It is also possible to allow the fuel hose 49 to be inserted therethrough.

  The elastic body 60 has a cylindrical shape, and the outer peripheral surface of the elastic body 60 is formed substantially flat in a side view so as to abut on the upper surface of the fuel tank 32.

  Further, the outer circumferences of the grommets 51 and 52 are held by the clampers 54 and 58, and there is no possibility that the fuel hose 49 is detached from the grommets 51 and 52 when the clamps 54 and 58 are held. Similarly to the grommet, it may have a slit extending over the entire length in the axial direction, or may have the same shape as the grommet 50A.

  Next, the operation of the first embodiment will be described. The grommet 50A is configured such that an insertion hole 59 through which the fuel hose 49 is inserted is provided in the elastic body 60. The inner end of the insertion hole 59 in one circumferential direction is provided. A recess 61 is provided in the elastic body 60 so that the outer end is closed and the outer end is closed, and the grommet 50A is inserted so that the fuel hose 49 can be inserted by expanding the recess 61. The hole 59 can be enlarged. Therefore, it is easy to insert the fuel hose 49 into the insertion hole 59, and the grommet 50A is firmly fixed to the fuel hose 49 using the tightening force of the elastic body 60 when the fuel hose 49 is inserted into the insertion hole 59. can do. Therefore, the grommet can be firmly fixed to the hose without using a tape or an adhesive, and the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost. Further, even when the elastic force of the elastic body 60 is increased to increase the tightening force, the insertion work of the fuel hose 49 into the insertion hole 59 can be easily performed.

  In addition, in this embodiment, the recess 61 is expanded by inserting the fuel hose 49 through the insertion hole 59, and the insertion of the fuel hose 49 when the fuel hose 49 is inserted through the insertion hole 59 causes the insertion of the recess 61. As the hole 59 expands, the fuel hose 49 can be more easily inserted into the insertion hole 59.

  Further, since at least one end of the insertion hole 59 in the axial direction, in this embodiment, one end is the tapered surface 59a, the operation of inserting the fuel hose 49 into the insertion hole 59 is facilitated, and the assembling property can be further enhanced.

  Further, the elastic body 60 is cylindrical, and the outer surface of the elastic body 60 is formed substantially flat in a side view so as to abut on the upper surface of the fuel tank 32, so The frictional force between the fuel tank 32 and the grommet 50A is made relatively large so as to contact the upper surface in a wide range, and the fuel hose 49 is prevented from coming into contact with the fuel tank 32 while reliably preventing the fuel hose 49 from contacting the fuel tank 32. 49 can be reliably supported.

  Further, a grommet 50A is attached to a fuel hose 49 that connects a fuel pump 48 provided in the fuel tank 32 and a fuel injection valve 29 provided in the power unit P, and the fuel tank 32 is disposed in the vicinity of the flange portion 35 provided on the outer periphery. Since the grommet 50A is in contact with the upper surface of the tank 32, the position of the grommet 50A can be stabilized by bringing the grommet 50A into contact with the fuel tank 32 in the vicinity of the relatively strong flange portion 35. Moreover, the fuel hose 49 can be reliably protected against the vibration of the power unit P.

  8 and 9 show a second embodiment of the present invention. FIG. 8 is a front view of the grommet corresponding to FIG. 6, and FIG. 9 is a sectional view taken along line 9-9 of FIG.

  The grommet 50B is formed by an insertion hole 62 through which the fuel hose 49 is inserted in the elastic body 63, and is elastically attached to the fuel hose 49 so that the fuel tank 32 supports an arbitrary position in the longitudinal direction of the fuel hose 49. The elastic body is provided with an incision 64 that extends through the inner circumference of the insertion hole 62 and the outer circumference of the elastic body 63 and has a bent portion 64a at the intermediate portion and covers the entire axial length of the insertion hole 62. The fuel hose 49 can be inserted into the insertion hole 62 by opening the incision 64.

  According to the second embodiment, the fuel hose 49 is inserted by inserting the fuel hose 49 from the incision 64 into the insertion hole 62 with an external force applied to the elastic body 63 so as to open the incision 64. The fuel hose 49 is detached from the grommet 50B by the bent portion 64a in the middle of the incision portion 64 in a state where the insertion into the hole 62 is facilitated and the external force action on the elastic body 63 is stopped and the incision portion 64 is closed. The grommet 50 </ b> B can be firmly fixed to the outer surface of the fuel hose 49 by tightening with the elastic force of the elastic body 63 while preventing this. Therefore, the grommet 50B can be firmly fixed to the fuel hose 49 without using a tape or an adhesive, so that the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost.

  Moreover, since the fuel hose 49 can be inserted into the insertion hole 62 from the side of the grommet 50B according to the second embodiment, the grommet 50B is attached from the side to the intermediate portion of the already installed fuel hose 49. It is also possible.

  FIG. 10 is a view corresponding to FIG. 6 for showing the grommet of the third embodiment of the present invention in the order of the natural state (A), the compressed state (B), and the fuel hose inserted state (C).

  The grommet 50 </ b> C includes an insertion hole 66 through which the fuel hose 49 is inserted in the elastic body 65. The grommet 50 </ b> C is elastically attached to the fuel hose 49 so that the fuel tank 32 supports an arbitrary position in the longitudinal direction of the fuel hose 49. The insertion hole 66 is provided in the elastic body 65 with an elliptical cross-sectional shape, and a tapered surface 66a for facilitating the insertion of the fuel hose 49 is provided at one end of the insertion hole 66. .

The short diameter d ₃ of the insertion hole 66 is set smaller than the diameter d ₂ of the fuel hose 49 (d ₃ <d ₂ ) in the natural state shown in FIG. Thus, when the fuel hose 49 is inserted through the insertion hole 66, the elastic body 65 is compressed in the major axis direction of the insertion hole 66 as shown by the arrow in FIG. The short diameter d ₄ of the insertion hole 66 in this state is set to be equal to or larger than the diameter d ₂ of the fuel hose 49 (d ₄ ≧ d ₂ ). The fuel hose 49 can be inserted as shown by C).

  According to the third embodiment, the elastic body 65 is provided with the insertion hole 66 having an oblong cross-sectional shape, and the elastic body 65 is compressed in the major axis direction of the insertion hole 66 so that the insertion hole 66 has a shorter diameter. Since the elastic body 65 can be compressed and the fuel hose 49 can be easily inserted into the insertion hole 66, the grommet 50C can be attached to the fuel hose 49 using the tightening force of the elastic body 65. Can be firmly fixed. Therefore, the grommet 50C can be firmly fixed to the fuel hose 49 without using a tape or an adhesive, and the number of parts can be reduced and the number of assembling steps can be reduced to reduce the cost.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

  For example, in each of the above-described embodiments, the grommets 50A, 50B, and 50C attached to the fuel hose 49 have been described. However, the present invention is not limited to the fuel hose 49, and is for supporting the middle of the hose on the support. Widely applicable to grommets.

  The cross-sectional shape of the insertion hole is not limited to the circular shape or the oval shape of the above embodiment, and the cross-sectional shape of the insertion hole may be changed according to the shape of the hose. Correspondingly, the cross-sectional shape of the insertion hole may be a rhombus.

1 is a left side view of a scooter type motorcycle according to a first embodiment. It is a perspective view which shows a part of vehicle body frame. FIG. 3 is a view taken along line 3-3 in FIG. 1. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is a perspective view of a grommet. FIG. 6 is a cross-sectional view of the grommet before fuel hose insertion (A) and after fuel hose insertion (B) cut along line 6-6 in FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. It is a front view corresponding to FIG. 6 of the grommet of 2nd Example. FIG. 9 is a sectional view taken along line 9-9 in FIG. 8. It is a figure corresponding to Drawing 6 for showing a grommet of a 3rd example in order of a natural state (A), a compression state (B), and a fuel hose insertion state (C).

Explanation of symbols

29 .. Fuel injection valve 32... Fuel tank 35 as a support body... Flange portion 48... Fuel pump 49 .. fuel hose 50A, 50B, 50C .. grommet 59, 62, 66. · Insertion hole 59a · · · Tapered surfaces 60, 63 and 65 · · · Elastic body 61 · · · concave portion 64 · · · cutting portion 64a · · · bending portion F · · · body frame P · · · power unit

Claims (6)

  An insertion hole (59) through which the hose (49) is inserted is provided in the elastic body (60), and the hose (49) is provided in the hose (49) to support an arbitrary position in the longitudinal direction of the hose (49) on the support body (32). In the grommet to be mounted elastically, the recess (61) extends over the entire axial length of the insertion hole (59) so that the inner end is opened at one circumferential position of the insertion hole (59) and the outer end is closed. Is provided in the elastic body (60), and the insertion hole (59) can be expanded so that the hose (49) can be inserted by expanding the recess (61). Grommet.   The grommet according to claim 1, wherein the concave portion (61) widens by inserting the hose (49) through the insertion hole (59).   An insertion hole (62) through which the hose (49) is inserted is provided in the elastic body (63), and the hose (49) is provided in the hose (49) to support an arbitrary position in the longitudinal direction of the hose (49) on the support body (32). In the grommet for supporting a hose that is elastically mounted, both ends are passed through the inner periphery of the insertion hole (62) and the outer periphery of the elastic body (63), and a bent portion (64a) is provided at the intermediate portion. An incision (64) extending over the entire length in the axial direction of the insertion hole (62) is provided in the elastic body (60), and the incision (64) is opened to insert the hose (49) into the insertion hole (62). Grommet characterized by making it possible.   An insertion hole (66) through which the hose (49) is inserted is formed in the elastic body (65), and the hose (49) is provided in the hose (49) to support an arbitrary position in the longitudinal direction of the hose (49) on the support body (32). In the grommet to be mounted elastically, the insertion hole (66) is provided in the elastic body (65) with an elliptical cross-sectional shape, and the hose (49) is inserted through the insertion hole (66). The grommet which made it possible to expand the insertion hole (59) in the minor axis direction by compressing the elastic body (65) in the major axis direction of the insertion hole (66).   The outer peripheral surface of the cylindrical elastic body (60, 63, 65) is formed substantially flat in a side view so as to abut on the outer surface of the support body (32). The grommet in any one of 1-4.   A fuel pump (48) provided in a fuel tank (32), wherein the grommet (50A, 50B, 50C) according to any one of claims 1 to 5 is arranged below a low floor type floor (38); The fuel tank (32) is attached to a fuel hose (49) connected to a fuel injection valve (29) provided in a power unit (P) supported in a swingable manner on the vehicle body frame (F). A fuel hose support structure for a small vehicle, wherein the fuel hose support structure is in contact with the outer surface of the fuel tank (32) in the vicinity of the flange portion (35).

Images