JP2015105641A - Attachment structure of vehicle canister - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure of a vehicle canister which improves the desorption efficiency of an evaporative fuel and protects the canister when the canister receives an external force.SOLUTION: In an attachment structure of a canister 10, a bracket 9 for attaching the canister 10 to a dash panel 6 has a plate part 14. The plate part 14 curves so as to expand to the engine room 4 side. A space part 18, in which air in an engine room 4 may flow, is formed between the plate part 14 and the dash panel 6.

Description

  The present invention relates to a mounting structure for a vehicle canister, and more particularly to a mounting structure for a vehicle canister for adsorbing evaporated fuel.

  A vehicle such as an automobile is provided with a canister for adsorbing evaporated fuel leaking from the fuel tank to the atmosphere and preventing hydrocarbons (HC) contained in the fuel from being released to the atmosphere. For example, the canister is attached to a dash panel or the like in the vicinity of the internal combustion engine via a bracket in the engine room.

  As a conventional mounting structure for this kind of vehicle canister, for example, the one described in Patent Document 1 is known. In this vehicle canister mounting structure, a rectangular groove section having an opening on the outer side is formed in both vertical frames of the first bracket mounted on the outer periphery of the main body case so as to penetrate vertically, and is formed on the bottom surface of the groove section. Has a plurality of protrusions, and a recess is formed in the lower frame.

  The second bracket attached to the vehicle body is formed with a fitting piece that fits into the groove of the first bracket, and the elastic piece provided at the lower end of the second bracket is elastically fitted to the dent portion. Protruding parts are provided. The first bracket has a locking surface with which a stopper formed at the lower end of the first bracket comes into contact when the first bracket is fitted into a predetermined position of the second bracket.

  This vehicle canister mounting structure is such that when the canister is assembled to the second bracket, the groove portion of the first bracket and the guide portion of the second bracket are fitted and slid to the proper assembly completion position. When it reaches, it can prevent that a 1st bracket and a 2nd bracket remove | deviate because a protrusion and a dent part engage.

JP-A-9-79230

However, in such a conventional vehicle canister mounting structure, a space for positively flowing the air in the engine room is not formed on the back surface of the bracket. At the time of starting after the stop, the canister cannot be sufficiently heated with the hot air so that the outer peripheral surface of the canister is surrounded by the hot air in the engine room.
For this reason, the adsorbent such as activated carbon built in the canister cannot be sufficiently heated by the hot air in the engine room, and it is difficult to efficiently remove the evaporated fuel from the adsorbent.

  In addition, the conventional vehicle canister mounting structure has a structure that prevents the first bracket and the second bracket from coming off by engaging the protrusion and the recess. When an in-vehicle component in the engine room comes into contact with the canister due to an external force acting on the canister, the canister and the in-vehicle component may strongly interfere with each other and the canister may be damaged.

  The present invention has been made by paying attention to the above-described problems, and can improve the efficiency of removing evaporated fuel and can protect the canister when the canister receives an external force. An object of the present invention is to provide a canister mounting structure.

  A first aspect of the present invention is a vehicle canister mounting structure having an adsorbent that is attached to a dash panel installed behind a vehicle engine room via a bracket and adsorbs evaporated fuel generated in a fuel tank. The bracket has a plate portion that is curved so that at least a central portion in the vertical direction bulges toward the engine room side, and a space portion in which air in the engine room can flow between the plate portion and the dash panel. Is formed, and a canister is attached to the other surface of the plate portion opposite to the one surface of the plate portion facing the space portion.

  As a second aspect of the present invention, a plurality of projecting claw portions that protrude from the plate portion toward the engine room side and incline so that the projecting direction front end portions approach each other are formed at both ends in the width direction of the plate portion. An engaging portion that is located between the plurality of protruding claw portions and engages with the plurality of protruding claw portions is provided on the outer peripheral portion of the canister that faces the other surface of the canister. A pair of openings extending in the vertical direction of the plate portion may be formed in a portion of the plate portion facing the plate, and the vertical length of the pair of openings may be longer than the vertical length of the engaging portion. .

  As a third aspect of the present invention, the engagement portion has a recess that is recessed from the other surface of the plate portion toward the outer peripheral surface of the canister, and at least the width of the recess when the canister is attached to the plate portion. Both ends in the direction may face the opening.

  As a fourth aspect of the present invention, the plate portion is formed with a plurality of protruding claw portions, a base portion that curves so as to bulge toward the engine room side, and an upper portion of the base portion. The upper curved portion that curves obliquely upward from the upper portion of the base toward the dash panel and the lower curved portion that curves obliquely downward from the lower portion of the base portion toward the dash panel, and is engaged with the base portion. The lower stopper part is formed to contact the part in the vertical direction to restrict the canister from moving downward relative to the plate part, and the lower stopper part is formed at the boundary between the base part and the lower curved part. Also good.

As a fifth aspect of the present invention, the pair of openings are formed so as to sandwich the lower stopper portion from both sides in the width direction, and the length in the width direction of the base portion between the pair of openings is the pair of openings. It may be shorter from the upper end to the lower end.
As a 6th aspect of this invention, the notch extended toward a lower stopper from a pair of opening part may be formed in the site | part of the base part located in the lower end part of a pair of opening part.

  As a seventh aspect of the present invention, an upper fastening portion that is continuous with the plate portion and fastened to the dash panel is formed at the upper portion of the bracket, and is continuous with the plate portion and fastened to the dash panel at the lower portion of the bracket. A lower fastening portion is formed, and the lower fastening portion is a first lower fastening portion formed at one end portion in the width direction of the bracket and a second lower fastening portion formed at the other end portion in the width direction of the bracket. The first lower fastening portion protrudes downward from the second lower fastening portion, and the second lower fastening portion is closer to the protruding claw portion than the first lower fastening portion. You may arrange.

  As described above, according to the first aspect described above, the bracket has the plate portion, and is curved so that at least the central portion in the vertical direction of the plate portion bulges toward the engine room side, and between the plate portion and the dash panel. Since the space in which the air in the engine room can flow is formed, the back surface of the canister can be heated with hot air flowing in the space between the plate portion and the dash panel. For this reason, the hot air staying in the engine room during the temporary stop of the internal combustion engine or at the start after the temporary stop can be distributed to the outer circumferential surface of the canister in the circumferential direction.

  Therefore, the adsorbent can be heated with hot air to promote the evaporative fuel detachment from the adsorbent, and the evaporative fuel detachability can be improved during a temporary stop of the internal combustion engine or at the start after the temporary stop.

  In addition, when an in-vehicle component placed in front of the canister comes into contact with the canister due to an external force acting on the vehicle, the plate portion can be deformed to the space portion side by concentrating stress on the bulging portion of the plate portion. The canister can be easily detached from the bracket to protect the canister.

  According to said 2nd aspect, a pair of opening part extended in the up-down direction of a plate part is formed in the site | part of the plate part facing the protrusion direction front-end | tip part of a some protrusion nail | claw part, and a pair of opening part Since the vertical length of the engagement part is longer than the vertical length of the engaging part, hot air that flows into the space between the plate part and the dash panel is blown to the back of the canister through the opening to Can be warmed. For this reason, it is possible to heat the adsorbent more effectively by circulating hot air more effectively on the outer circumferential surface of the canister in the circumferential direction.

  In addition, since a pair of openings extending in the vertical direction of the plate portion are formed in the portion of the plate portion facing the protruding direction tip portions of the plurality of protruding claws formed in the plate portion, the openings are sandwiched between the openings. A difference in rigidity can be provided between the inner side in the width direction and the outer side in the width direction of the plate portion.

  For this reason, when an in-vehicle component arranged in front of the canister comes into contact with the canister due to an external force acting on the vehicle, stress can be concentrated on the portion of the plate portion on the outer side in the width direction where the protruding claw portion is provided. The engaging portion of the canister that engages with the protruding claw portion can be detached from the protruding claw portion. Therefore, the canister can be easily separated from the plate portion more effectively, and the canister can be protected more effectively.

  According to the third aspect, the engaging portion has a recess that is recessed from the other surface of the plate portion toward the outer peripheral surface of the canister, and at least the width of the recess in the state where the canister is attached to the plate portion. Since both ends in the direction oppose the opening, hot air that flows into the space between the plate portion and the dash panel can flow into the recess through the opening.

  For this reason, the amount of hot air contacting the back surface of the canister can be increased, the inside of the engine room can be heated during the temporary stop of the internal combustion engine or at the start after the temporary stop, etc. It can improve more effectively.

  According to said 4th aspect, the lower stopper part which contact | abuts to the base part of a bracket in an up-down direction with respect to an engaging part, and controls that a canister moves below with respect to a plate part is formed, Since the lower stopper portion is formed at the boundary between the base portion and the lower curved portion, the rigidity of the portion of the plate portion around the lower stopper portion can be increased by the amount having the lower stopper portion.

  For this reason, when an external force is applied to the canister, stress can be concentrated on the lower stopper portion, and the lower curved portion can be cut from the base portion. Therefore, the engaging portion can be detached from the lower stopper portion, the canister can be easily detached from the bracket, and the canister can be more effectively protected.

  According to said 5th aspect, a pair of opening part is formed so that a lower stopper part may be inserted | pinched from the width direction both sides, and the width direction length of the base part between a pair of opening parts is a pair of opening part Therefore, the width direction length of the base portion on the lower end side of the opening portion can be made shorter than the length direction of the base portion on the upper end side of the opening portion. For this reason, when an external force is applied to the canister and stress concentrates on the lower stopper portion, the lower curved portion can be more effectively cut from the base portion. Therefore, the engaging portion can be more effectively detached from the lower stopper portion.

  According to said 6th aspect, since the notch extended toward a lower stopper from a pair of opening part is formed in the site | part of the base part located in the lower end part of a pair of opening part, external force is applied to a canister When stress is concentrated on the lower stopper portion, stress can be easily transmitted from the lower stopper portion to the notch portion, and the lower curved portion can be more effectively cut from the base portion. Therefore, the engaging portion can be more effectively detached from the lower stopper portion.

  According to said 7th aspect, while making a 1st lower side fastening part protrude below rather than a 2nd lower side fastening part, a 2nd lower side fastening part is rather than a 1st lower side fastening part. Since it arrange | positions near a protrusion nail | claw part, an intensity | strength difference can be provided in the width direction one side and the other side with respect to the width direction centerline of a bracket.

  For this reason, when an external force is applied to the canister, the stress can be concentrated on the protruding claw portion formed around the second lower fastening portion, and is formed around the second lower fastening portion. The protruding claw portion can be cut.

  Therefore, the engaging portion can be detached from the cut claw portion, the canister can be more easily detached from the bracket, and the canister can be more effectively protected.

FIG. 1 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a plan view of a front portion of the vehicle to which the canister is attached. FIG. 2 is a view showing an embodiment of the mounting structure for a vehicle canister according to the present invention, and is a side view of the front portion of the vehicle to which the canister is attached. FIG. 3 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, which is a configuration diagram of a main part of the engine and a front view of the canister as viewed from the V1-V1 direction of FIG. FIG. 4 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a side view of the canister and a bracket. FIG. 5 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a cross-sectional view taken in the direction of arrows V2-V2 in FIG. FIG. 6 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a view of the canister and a bracket as viewed from the rear of the vehicle. FIG. 7 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is an exploded view of the canister and a bracket. FIG. 8 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a front view of a bracket. FIG. 9 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, showing a post-deformation bracket, and corresponds to a cross-sectional view taken in the direction of arrows V2-V2 in FIG. FIG. 10 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a front view of the bracket after deformation. FIG. 11 is a view showing an embodiment of a mounting structure for a vehicle canister according to the present invention, and is a structural view of a bracket having another shape.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a vehicle canister mounting structure according to the present invention will be described with reference to the drawings.
FIGS. 1-11 is a figure which shows the attachment structure of the canister for vehicles of one Embodiment which concerns on this invention.

First, the configuration will be described.
1 and 2, the vehicle 1 includes a vehicle body 2 indicated by a virtual line. An engine room 4 in which an engine 3 as an internal combustion engine is accommodated is formed in front of the vehicle body 2, and the engine room 4 and a passenger compartment 5 in which a passenger is boarded are partitioned by a dash panel 6. That is, the dash panel 6 is installed behind the engine room 4.

  The engine 3 is composed of a gasoline engine, a diesel engine, or the like, and a transmission 7 indicated by an imaginary line is attached to the left side of the vehicle 1. An intake manifold 8 as an in-vehicle component is connected to the rear of the engine 3 (see FIG. 3), and outside air introduced from an intake pipe (not shown) is supplied to the engine 3 through a intake manifold 8 to a plurality of cylinders (not shown). be introduced.

  A canister 10 is attached to the dash panel 6 via a bracket 9 (see FIGS. 4 and 5). The canister 10 has a function of adsorbing evaporated fuel generated in a fuel tank (not shown) and preventing the evaporated fuel from being released into the atmosphere. An adsorbing material (not shown) such as activated carbon for adsorbing water is incorporated.

  One end of a vapor pipe 11 is connected to the canister 10, and the other end of the vapor pipe 11 is connected to a fuel tank. The vapor pipe 11 introduces vapor, which is fuel evaporated in the fuel tank, into the canister 10, and the vapor introduced into the canister 10 through the vapor pipe 11 is adsorbed by the adsorbent.

  One end of the atmospheric piping 12 is connected to the main body case 10A of the canister 10, the other end of the atmospheric piping 12 is opened to the atmosphere, and the atmospheric air is introduced into the main body case 10A through the atmospheric piping 12.

  One end of the purge pipe 13 is connected to the main body case 10 </ b> A, and the other end of the purge pipe 13 is connected to the intake manifold 8. The purge pipe 13 is provided with a purge valve (not shown). When the purge valve is opened, the atmosphere and vapor introduced from the atmosphere pipe 12 to the canister 10 by the suction negative pressure generated in the intake manifold 8 through the intake pipe. A so-called purge gas is introduced into the intake manifold 8.

  6 to 8, the bracket 9 includes a plate part 14, a fastening part 15 as an upper fastening part, a fastening part 16 as a lower fastening part and a first lower fastening part, a fastening part, and a second fastening part. And a fastening portion 17 as a lower fastening portion.

  The fastening portion 15 constitutes the upper portion of the bracket 9 and is continuous with the upper portion of the plate portion 14. The fastening parts 16 and 17 constitute the lower part of the bracket 9 and are continuous with the lower part of the plate part 14. The fastening portion 16 is formed at one end portion in the width direction of the bracket 9 (right end portion of the vehicle 1), and the fastening portion 17 is formed at the other end portion in the width direction of the bracket 9 (left end portion of the vehicle 1). ing.

  Bolts 30 are inserted into the fastening portions 15 to 17 (see FIGS. 8 and 10), and the fastening portions 15 to 17 are attached to the dash panel 6 by the bolts 30 so that the bracket 9 is attached to the dash panel. It is attached to the panel 6. In the bracket 9 of this embodiment, the portion of the bracket 9 excluding the fastening portions 15 to 17 constitutes the plate portion 14.

  4 and 5, the plate portion 14 is continuous with the base portion 19 which is curved so that the central portion in the vertical direction swells toward the engine room 4, and the upper portion of the base portion 19. An upper curved portion 20 that curves diagonally upward (backward obliquely upward of the vehicle 1) toward the panel 6, and a lower curve that curves diagonally downward (backward obliquely downward of the vehicle 1) from the lower portion of the base portion 19 toward the dash panel 6. The side bending portion 21 is included. That is, the plate part 14 is formed in an arch shape.

  A space portion 18 through which air in the engine room 4 can flow is formed between the plate portion 14 and the dash panel 6, and the canister 10 is connected to one surface 14 a of the plate portion 14 facing the space portion 18. It is attached to the other surface 14b of the plate portion 14 on the opposite side.

  6 to 8, an upper stopper portion 24 is formed above the base portion 19 and a lower stopper portion 25 is formed below the base portion 19. 19 and the lower curved portion 21.

  A plurality of protruding claw portions 22A, 22B, 23A, and 23B are formed at both ends in the width direction of the base portion 19 of the plate portion. The projecting claw portions 22A and 22B project from the plate portion 14 toward the engine room 4 and are inclined so that the projecting direction front end portions 22a and 22b approach each other.

  The projecting claw portions 23A and 23B are provided below the projecting claw portions 22A and 22B. The projecting claw portions 23A and 23B project from the plate portion 14 to the engine room 4 side, and projecting direction front end portions 22a and 22b. Are inclined so as to approach each other.

  Engagement protrusions 26 and 27 as engagement parts are provided vertically apart from each other on the main body case 10A of the canister 10 facing the other surface 14b of the plate part 14, and the engagement protrusions 26 and 27 are separated from each other. The protrusion claw portions 22A, 22B, 23A, and 23B are located.

  The engaging protrusion 26 is adapted to be engaged with the protruding claw portions 22A and 22B so as to be sandwiched between the protruding claw portions 22A and 22B of the base portion 19, and the engaging protrusion 27 is protruded from the base portion 19. It is engaged with the protruding claw portions 23A and 23B so as to be sandwiched between the claw portions 23A and 23B. For this reason, the canister 10 is fixed to the bracket 9 and attached to the dash panel 6 via the bracket 9.

  When the engaging protrusions 26 and 27 are engaged with the protruding claw portions 22A and 22B and the protruding claw portions 23A and 23B, the upper surface of the engaging protrusion 26 and the lower surface of the engaging protrusion 27 are the upper stopper portion 24 and By coming into contact with the lower stopper portion 25, it is possible to prevent the canister 10 from coming out of the bracket 9 in the vertical direction.

  That is, the upper stopper part 24 and the lower stopper part 25 abut against the engaging protrusions 26 and 27 in the vertical direction and restrict the canister 10 from moving upward and downward relative to the plate part 14. Here, in the bracket 9 of the present embodiment, the fastening portion 17 is disposed closer to the protruding claw portion 23B than the fastening portion 16.

  In FIG. 8, a pair of opening portions 28 and 29 are formed in the portion of the plate portion 14 that faces the protruding end portions 22a, 22b, 23a, and 23b of the protruding claw portions 22A, 22B, 23A, and 23b. The openings 28 and 29 extend in the vertical direction of the plate portion 14, and the length in the extending direction is longer than the vertical length of the engagement protrusions 26 and 27.

  In FIG. 7, the engagement protrusions 26 and 27 have recesses 26 a and 27 a that are recessed from the other surface 14 b of the plate portion 14 toward the outer peripheral surface of the main body case 10 </ b> A, and the canister 10 is attached to the plate portion 14. In this state, both ends in the width direction of the recesses 26a and 27a are opposed to the openings 28 and 29 (see FIG. 6).

  In FIG. 8, the openings 28 and 29 are formed in the plate portion 14 so as to sandwich the upper stopper portion 24 and the lower stopper portion 25 from both sides in the width direction, and the width of the base portion 19 between the openings 28 and 29. The direction length is formed shorter from the upper end to the lower end of the openings 28 and 29.

Next, the operation will be described.
Air taken from the outside of the vehicle 1 (shown by arrows in FIGS. 1 and 2) flows in the engine room 4 and is heated by the engine 3 to become hot air.

  On the other hand, the adsorbent incorporated in the canister 10 is preferably heated efficiently by hot air because the ability of the evaporated fuel adsorbed by the adsorbent to improve when the adsorbent becomes high.

  According to the mounting structure of the canister 10 of the present embodiment, the bracket 9 for mounting the canister 10 to the dash panel 6 has the plate portion 14, and the plate portion 14 is curved so as to bulge out to the engine room 4 side. A space 18 is formed between the plate portion 14 and the dash panel 6 so that air in the engine room 4 can flow.

  For this reason, as shown by the solid line arrow A in FIG. 6, the back surface of the main body case 10 </ b> A can be warmed by the hot air flowing into the space 18 between the plate portion 14 and the dash panel 6, and the engine 3 is temporarily stopped. Hot air staying in the engine room 4 at the time of starting or after a temporary stop can be circulated on the outer circumferential surface of the main body case 10A in the circumferential direction.

  Therefore, the adsorbent can be heated with hot air to promote the detachment of the evaporated fuel from the adsorbent, and the evaporative fuel detachability can be enhanced during the temporary stop of the engine 3 or at the start after the temporary stop.

  In particular, the bracket 9 of the present embodiment extends in the vertical direction of the plate portion 14 to the portion of the plate portion 14 that faces the protruding direction front end portions 22a, 22b, 23a, and 23b of the protruding claw portions 22A, 22B, 23A, and 23B. The existing openings 28 and 29 were formed, and the vertical lengths of the openings 28 and 29 were formed longer than the vertical lengths of the engagement protrusions 26 and 27.

  For this reason, as shown by the broken line arrow B in FIG. 6, hot air flowing into the space 18 between the plate portion 14 and the dash panel 6 is blown to the back surface of the main body case 10 </ b> A through the openings 28 and 29. 10 backs can be warmed. Therefore, the adsorbent can be heated more effectively by circulating hot air more effectively on the outer circumferential surface of the main body case 10A.

  On the other hand, if an external force is applied to the vehicle 1 and the external force is applied to the canister 10 by the intake manifold 8 or the like located in front of the canister 10 coming into contact with the canister 10, the canister 10 may be crushed and damaged. is there.

  Since the bracket 9 of the present embodiment can deform the plate portion 14 toward the space portion 18 by concentrating stress on the bulging portion of the plate portion 14 when the intake manifold 8 or the like contacts the canister 10, The canister 10 can be easily detached from the bracket 9 to protect the canister 10.

  In particular, according to the bracket 9 of the present embodiment, the vertical direction of the plate portion 14 is located at the portion of the plate portion 14 facing the protruding direction front end portions 22a, 22b, 23a, 23b of the protruding claw portions 22A, 22B, 23A, 23B. Since the openings 28 and 29 extending in the direction are formed, a difference in rigidity can be provided between the inner side in the width direction and the outer side in the width direction of the plate part 14 with the openings 28 and 29 interposed therebetween.

  Therefore, when an external force acts on the vehicle 1 and the intake manifold 8 or the like comes into contact with the canister 10, stress is applied to the portion of the plate portion 14 on the outer side in the width direction where the protruding claw portions 22A, 22B, 23A, and 23B are provided. The engaging protrusions 26 and 27 of the canister 10 that engage with the protruding claw portions 22A, 22B, 23A, and 23B can be separated from the protruding claw portions 22A, 22B, 23A, and 23B. Therefore, the canister 10 can be more easily detached from the plate portion 14 more effectively, and the canister 10 can be protected more effectively.

  Further, the engagement protrusions 26 and 27 of the bracket 9 of the present embodiment have concave portions 26a and 27a that are recessed from the other surface 14b of the plate portion 14 toward the outer peripheral surface of the main body case 10A, and the canister 10 has the plate portion 14. In the state where the recesses 26a and 26b are attached to each other, the width direction both ends of the recesses 26a and 26b face the openings 28 and 29. Therefore, as shown in FIG. 6, the hot air flowing into the space between the plate part 14 and the dash panel 6 is , Can flow into the recesses 26a, 27a through the openings 28, 29.

  For this reason, the amount of hot air contacting the back surface of the main body case 10A can be increased, the inside of the engine room 4 can be heated during the temporary stop of the engine 3 or at the start after the temporary stop, etc. The separation performance can be improved more effectively.

  Further, in the bracket 9 of the present embodiment, the canister 10 is restricted from moving downward with respect to the plate portion 14 by contacting the base portion 19 of the plate portion 14 with the engaging protrusions 26 and 27 in the vertical direction. Since the lower stopper portion 25 is formed, and the lower stopper portion 25 is formed at the boundary between the base portion 19 and the lower curved portion 21, the plate portion 14 around the lower stopper portion 25 is provided by the amount having the lower stopper portion 25. The rigidity of the part can be increased.

  Therefore, when an external force is applied to the canister 10, stress can be concentrated on the lower stopper portion 25, and the lower curved portion 21 can be cut from the base portion 19 (see FIGS. 9 and 10, cutting location). Is indicated by the symbol C). Therefore, the engagement protrusion 27 can be detached from the lower stopper portion 25, and the canister 10 can be protected by facilitating the separation of the canister 10 from the bracket 9 in the downward direction indicated by the arrow in FIG.

  Further, the openings 28 and 29 of the bracket 9 of the present embodiment are formed so as to sandwich the lower stopper portion 25 from both sides in the width direction, and the length in the width direction of the base portion 19 between the openings 28 and 29 is the opening. Since the length of the base portion 19 on the lower end side of the openings 28 and 29 is reduced in the width direction, the length in the width direction of the base portion 19 on the upper end side of the openings 28 and 29 is reduced. It can be shorter than the length.

  For this reason, when the external force is applied to the canister 10 and the stress concentrates on the lower stopper portion 25, the lower curved portion 21 can be more effectively cut from the base portion 19. Accordingly, the engagement protrusion 27 can be more effectively detached from the lower stopper portion 25.

  In addition, the bracket 9 according to the present embodiment causes the fastening portion 16 to protrude downward from the fastening portion 17, and the fastening portion 17 is disposed closer to the protruding claw portion 23 </ b> B than the fastening portion 16. An intensity difference can be provided on one side and the other side in the width direction with respect to the line.

  For this reason, when an external force is applied to the canister 10, stress can be concentrated on the protruding claw portion 23B formed around the fastening portion 17, and the protruding claw portion 23B can be cut.

  Therefore, the engaging protrusion 27 can be detached from the cut projection claw portion 23B, the canister 10 can be more easily detached from the bracket 9, and the canister 10 can be more effectively protected.

  In the canister 10 mounting structure of the present embodiment, as shown in FIG. 11, the base portion 19 is located at the lower end portion of the openings 28 and 29 from the openings 28 and 29 toward the lower stopper portion 25. The notches 31a and 31b extending may be formed. In this way, when an external force is applied to the canister 10 and stress concentrates on the lower stopper portion 25, the stress can be easily transmitted from the lower stopper portion 25 to the notches 31a and 31b. The curved portion 21 can be cut more effectively. Accordingly, the engagement protrusion 27 can be more effectively detached from the lower stopper portion 25.

  The bracket 9 of the present embodiment includes a plate portion 14 having a base portion 19 that is curved so that the central portion in the vertical direction swells toward the engine room 4, and the plate portion 14 is formed in an arch shape. However, the present invention is not limited to this.

  For example, the width direction one end part and width direction other end part of a plate part are located in the dash panel 6 side, and the width direction center part of a plate part bulges from the width direction one end part and the width direction other end part to the engine room 4 side. It may be formed in a semicircular shape that is curved. In short, the bracket 9 may have a structure having a plate portion that is curved so that at least a central portion in the vertical direction bulges toward the engine room 4 side.

  While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Engine (internal combustion engine), 4 ... Engine room, 6 ... Dash panel, 9 ... Bracket, 10 ... Canister, 14 ... Plate part, 14a ... One side (one side of plate part), 14b ... the other surface (the other surface of the plate portion), 15 ... the fastening portion (upper fastening portion), 16 ... the fastening portion (lower fastening portion, first lower fastening portion), 17 ... the fastening portion (lower fastening) Part, second lower fastening part), 18 ... space part, 19 ... base part, 20 ... upper curved part, 21 ... lower curved part, 22A, 22B, 23A, 23B ... projecting claw part, 22a, 22b, 23a, 23b ... projecting direction tip, 25 ... lower stopper, 26, 27 ... engagement protrusion (engagement), 26a, 27a ... recess, 28, 29 ... opening

Claims (7)

A vehicle canister mounting structure that is attached to a dash panel installed behind a vehicle engine room via a bracket and has an adsorbent that adsorbs evaporated fuel generated in a fuel tank,
The bracket has a plate portion that curves so that at least a central portion in the vertical direction bulges toward the engine room
A space is formed between the plate portion and the dash panel so that air in the engine room can flow,
The canister mounting structure for a vehicle, wherein the canister is attached to the other surface of the plate portion opposite to the one surface of the plate portion facing the space portion. A plurality of projecting claw portions that project from the plate portion to the engine room side and incline so that the projecting direction front ends approach each other are formed at both ends in the width direction of the plate portion,
On the outer peripheral part of the canister that faces the other surface of the plate part, an engaging part that is located between the plurality of protruding claw parts and engages with the plurality of protruding claw parts is provided,
A pair of openings extending in the vertical direction of the plate part is formed at a portion of the plate part facing the protruding front ends of the plurality of protruding claws, and the vertical length of the pair of openings is set. The vehicle canister mounting structure according to claim 1, wherein the engaging portion is longer than a vertical length of the engaging portion.   The engaging portion has a concave portion that is recessed from the other surface of the plate portion toward the outer peripheral surface of the canister, and in a state where the canister is attached to the plate portion, at least both ends in the width direction of the concave portion are The mounting structure for a vehicle canister according to claim 2, wherein the mounting structure faces the opening. The plate portion includes a plurality of protruding claw portions, a base portion that is curved so as to bulge toward the engine room, and an upper portion of the base portion. An upper curved portion that curves obliquely upward toward the panel, and a lower curved portion that curves obliquely downward from the lower portion of the base portion toward the dash panel,
A lower stopper portion is formed on the base portion so as to abut against the engaging portion in the vertical direction and restrict the canister from moving downward with respect to the plate portion,
4. The vehicle canister mounting structure according to claim 3, wherein the lower stopper portion is formed at a boundary between the base portion and the lower curved portion.   The pair of openings are formed so as to sandwich the lower stopper part from both sides in the width direction, and the length in the width direction of the base part between the pair of openings is from the upper end to the lower end of the pair of openings. The mounting structure for a vehicle canister according to claim 4, wherein the mounting structure becomes shorter.   6. The notch extending from the pair of openings toward the lower stopper is formed in a portion of the base portion located at the lower end of the pair of openings. Mounting structure for vehicle canisters. An upper fastening portion that is continuous with the plate portion and fastened to the dash panel is formed at an upper portion of the bracket, and a lower fastening that is continuous with the plate portion and fastened to the dash panel is formed at a lower portion of the bracket. Part is formed,
The lower fastening portion is composed of a first lower fastening portion formed at one end portion in the width direction of the bracket and a second lower fastening portion formed at the other end portion in the width direction of the bracket,
The first lower fastening portion projects downward from the second lower fastening portion, and the second lower fastening portion is closer to the projecting claw portion than the first lower fastening portion. The vehicle canister mounting structure according to claim 6, wherein the vehicle canister mounting structure is arranged.

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