JP5569175B2 - Vehicle engine cover structure - Google Patents

Description

  The present invention relates to an engine cover structure for a vehicle, and more particularly to an engine cover structure for a vehicle capable of suppressing interference between a fuel system component disposed at a vehicle rear position of the engine cover and the engine cover.

  Conventionally, there has been known an engine cover that covers an upper portion of a cylinder head cover of an engine mounted on a vehicle, and this engine cover reduces radiation sound from the engine and improves the appearance of the engine room. The engine cover is fixed to the engine side via a mounting portion provided on the back surface of the engine cover.

  In the engine cover device of Patent Document 1, a fuel filter is disposed on a dash panel, and an engine mounted horizontally so that an output shaft extends in the vehicle width direction, and a side surface of the engine facing the dash panel has the same height as the fuel filter. And a mounting bracket that supports the engine cover is mounted at the rear of the engine vehicle, and a protector that covers the rear of the auxiliary vehicle is mounted on the mounting bracket. Yes.

  In this engine cover device, when an impact load is applied to the engine obliquely from the front of the vehicle or from one side deviated from the center in the vehicle width direction, the left and right engine mount positions that support the engine are relatively Even if the engine is displaced and the vehicle moves rearward, the protector mounted on the mounting bracket prevents the auxiliary equipment such as the EGR valve from directly interfering with the fuel filter at the same height position.

JP 2007-177713 A

  In the engine cover device of Patent Document 1, it is possible to prevent interference between auxiliary equipment and a fuel filter as a fuel system component by using a mounting bracket for fixing the engine cover to the engine, fuel leakage due to damage of the fuel filter, etc. Can be prevented. However, in this engine cover device, when the engine moves with respect to the vehicle body due to the impact load at the time of the collision, a protector is interposed between the auxiliary equipment and the fuel system parts to interfere with the auxiliary equipment and the fuel system parts. Although it has been prevented, no consideration has been given to preventing interference between the engine cover and fuel system parts.

  The vehicle collision situation varies depending on the degree of impact load, impact load application position, impact load application direction, etc., and there is a case where the impact load does not act directly on the engine or the engine does not move relative to the vehicle body even if it acts. To do. Since the engine cover is installed in the engine by a mounting part such as a mounting bracket, when an impact load to the rear of the vehicle is applied to the engine cover, the engine does not move and only the engine cover is behind the vehicle. There is a risk of relative movement. In addition to the fuel filter, relatively small fuel system parts such as a fuel connector for connecting the vehicle body side fuel pipe and the engine side fuel pipe are disposed at the rear of the engine, and these fuel system parts are interfered with the engine cover. There is also a risk of causing damage or disengagement. In addition, when the engine cover is enlarged to enhance the sound insulation effect, or when the engine cover is fixed to other than the engine body, for example, the intake manifold, due to requirements in the engine layout, the engine cover alone can be moved to the rear of the vehicle. The possibility of interference between the engine cover and fuel system parts increases as the possibility of rearward movement increases.

  An object of the present invention is to provide an engine cover structure for a vehicle capable of restraining the interference between the fuel system component and the engine cover by restricting the movement of the engine cover to the rear of the vehicle when an impact load is applied to the engine cover. Etc. is to provide.

The engine cover structure for a vehicle according to claim 1 is an engine cover structure for a vehicle, wherein the engine is mounted in an engine room formed in a front portion of the vehicle body, and includes an engine cover that is fixed to the engine and covers an upper portion of the engine. A fuel system component disposed in a vicinity of the vehicle rear side portion of the engine cover, the fuel system component being in contact with the engine cover when an impact load to the vehicle rear is applied to the engine cover ; A projecting member projecting from the engine cover to the engine side, and a latching member fixed to the engine and disposed at a vehicle rear position from the projecting member, the latching member on the engine cover to the rear of the vehicle impact engine cover load acts is when the rearward movement of the engine cover engages the protrusion members Is regulated configured to be able to move to both the rear, the projecting member and the locking member is characterized in that it is respectively placed in the vehicle width direction substantially central portion of the engine.

  The engine cover structure of the vehicle includes a projecting member that projects from the engine cover to the engine side, and a locking member that is fixed to the engine and disposed at a position behind the projecting member. When an impact load to the rear of the vehicle is applied to the vehicle, the locking member fixed to the engine can lock the protruding member.

The invention of claim 2 is characterized in that, in the invention of claim 1, the engine is mounted horizontally in the engine room so that the output shaft extends in the vehicle width direction and is slanted in a slanted manner .

According to a third aspect of the present invention, there is provided an engine cover structure for a vehicle in which an engine is mounted in an engine room formed in a front portion of a vehicle body and includes an engine cover fixed to the engine and covering an upper portion of the engine. A fuel system component arranged in the vicinity of a rear side portion, and a fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover; and the engine cover And a locking member fixed to the engine and disposed at a position rearward of the vehicle, the locking member receiving an impact load to the rear of the vehicle on the engine cover. When the engine cover moves rearward due to the action, the protruding member is locked to restrict the rearward movement of the engine cover. Capable constructed, the an oil injection unit capable inject oil into the engine as well as projecting upwardly in the engine upper portion, the locking member includes a vehicle front side wall portion of the oil injection unit, the vehicle from the front side wall portion It has the protrusion part protruded ahead, It is characterized by the above-mentioned.
According to a fourth aspect of the present invention, in the third aspect of the present invention, the filler cap that closes the upper end opening of the oil injection portion, and the opening that allows the filler cap to be inserted at a position facing the filler cap of the engine cover are provided. And the protruding member is formed at a vehicle front position of the opening.

According to a fifth aspect of the present invention, there is provided an engine cover structure for a vehicle, in which an engine is mounted in an engine room formed at a front portion of a vehicle body, and the engine cover is fixed to the engine and covers an upper portion of the engine. A fuel system component arranged in the vicinity of a rear side portion, and a fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover; and the engine cover And a locking member fixed to the engine and disposed at a position rearward of the vehicle, the locking member receiving an impact load to the rear of the vehicle on the engine cover. When the engine cover moves rearward due to the action, the protruding member is locked to restrict the rearward movement of the engine cover. Capable constructed, the engine cover is characterized by having a low fragile portion in strength than the other portions in the vehicle front position than the projecting member.
According to a sixth aspect of the present invention, there is provided an engine cover structure for a vehicle in which an engine is mounted in an engine room formed in a front portion of a vehicle body and includes an engine cover fixed to the engine and covering an upper portion of the engine. A fuel system component arranged in the vicinity of a rear side portion, and a fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover; and the engine cover And a locking member fixed to the engine and disposed at a position rearward of the vehicle, the locking member receiving an impact load to the rear of the vehicle on the engine cover. When the engine cover moves rearward due to the action, the protruding member is locked to restrict the rearward movement of the engine cover. Capable constructed, it is characterized in that mounting the reinforcing member on the vehicle front side of the protrusion member.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, when an impact load to the rear of the vehicle acts on the engine cover at a vehicle front side end portion of the reinforcing member, the engine cover comes into contact with the engine cover from below to be deformed. It is characterized in that a deformation promoting portion capable of forming a starting point is provided.
According to an eighth aspect of the present invention, there is provided an engine cover structure for a vehicle in which an engine is mounted in an engine room formed in a front portion of a vehicle body and includes an engine cover fixed to the engine and covering an upper portion of the engine. A fuel system component arranged in the vicinity of a rear side portion, and a fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover; and the engine cover And a locking member fixed to the engine and disposed at a position rearward of the vehicle, the locking member receiving an impact load to the rear of the vehicle on the engine cover. When the engine cover moves rearward due to the action, the protruding member is locked to restrict the rearward movement of the engine cover. Capable constructed, the fuel system component is characterized in that provided between the lower surface of the upper surface and the bonnet of the engine cover.

According to a ninth aspect of the present invention, in the eighth aspect of the invention, the engine cover has a rear end portion overlapping with the fuel system component in a plan view at a position ahead of the vehicle relative to a rear end portion of the other portion. It is characterized by being formed.
According to a tenth aspect of the invention, in the ninth aspect of the invention, the engine cover is formed such that a portion overlapping the fuel system component in a plan view is formed in a downwardly inclined manner.
The invention of claim 11 is characterized in that, in the invention of any one of claims 1 to 10 , the fuel system part is a fuel connector made of synthetic resin.

According to the first aspect of the present invention, the engine cover includes the protruding member that protrudes from the engine cover toward the engine side, and the locking member that is fixed to the engine and disposed at the vehicle rear position from the protruding member. When the impact load is applied, the locking member can lock the protruding member, and the relative movement of the engine cover relative to the engine to the rear of the vehicle can be restricted. Therefore, it is possible to protect the fuel system component disposed at the vehicle rear position of the engine cover from interference with the engine cover, and to prevent the fuel system component from being damaged or disengaged.
Further, when an impact load from the front to the rear of the vehicle is applied to the engine cover, the pair of locking members and the projecting member suppresses the rotational movement about the locking member of the engine cover as the center of rotation. Interference between the rear end portion on one side in the width direction and the fuel system parts can be suppressed.

According to the invention of claim 2, it is possible to suppress the interference between the fuel system component and the engine cover while reducing the vehicle bonnet .

According to the invention of claim 3, the impact load can be supported by the front side wall portion of the highly rigid oil injection portion, and the movement of the engine cover to the rear of the vehicle can be surely restricted by the protruding portion.
According to the invention of claim 4 , the protruding member can be arranged at a position corresponding to the locking member by using the insertion opening as the service hole of the filler cap, and the mounting strength of the protruding member to the engine cover is increased. Can do.

According to the invention of claim 5 , the impact load acting on the engine cover is absorbed by the crushing deformation of the fragile portion provided at the vehicle front position of the projecting member, and is transmitted to the projecting member disposed behind the fragile portion. Can be prevented.
According to invention of Claim 6 , the rigidity of a protrusion member can be increased and the damage of the protrusion member by the impact load which acted on the engine cover can be prevented.

According to the invention of claim 7 , while increasing the rigidity of the projecting member, it is possible to absorb the impact load by the deformation of the front position of the projecting member and prevent the concentration of the impact load transmitted to the projecting member.
According to the eighth aspect of the present invention, when the engine cover moves rearward due to the impact load applied to the engine cover, it is possible to suppress interference between the fuel system parts and the engine cover.

According to the ninth aspect of the present invention, in the case of the collision form in which the bonnet is folded downward in a valley shape, even if the fuel system component is pushed downward from the bonnet, the fuel system component is not sandwiched between the bonnet and the engine cover. Damage can be prevented.
According to the tenth aspect of the present invention, when the engine cover moves rearward and upward due to the impact load applied to the engine cover, interference between the fuel system parts and the engine cover can be suppressed.
According to the eleventh aspect of the present invention, it is possible to suppress the occurrence of fuel leakage due to breakage or disengagement of the synthetic resin fuel connector at the time of frontal collision of the vehicle.

It is a perspective view of the vehicle body front part provided with the engine cover structure of this invention. It is a top view of the engine which attached the engine cover. It is a longitudinal cross-sectional view of the engine which attached the engine cover. It is principal part sectional drawing of the engine which attached the engine cover. It is a perspective view of an engine. It is the perspective view which looked at the engine cover from the back. It is the top view which looked at the engine cover from the back. It is a figure which shows the positional relationship of the protrusion member and oil injection part before a collision. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the collision initial stage. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the latter half of a collision. It is the perspective view which looked at the engine cover which concerns on Example 2 from the back surface. It is the XII-XII sectional view taken on the line of FIG. It is the perspective view which looked at the engine cover which concerns on Example 3 from the back surface. It is a figure which shows the positional relationship of the protrusion member and oil injection part before a collision. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the collision initial stage. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the latter half of a collision. It is the perspective view which looked at the engine cover which concerns on Example 4 from the back surface. It is a figure which shows the positional relationship of the protrusion member and oil injection part before a collision. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the collision initial stage. It is a figure which shows the positional relationship of the protrusion member and oil injection part of the latter half of a collision.

Hereinafter, modes for carrying out the present invention will be described based on examples.
In the following embodiments, the left-right direction in the figure is the left-right direction, and the up-down direction is the up-down direction.

Embodiments of the present invention will be described below with reference to FIGS.
As shown in FIG. 1, an engine room 2 is formed at the front of the vehicle body of a vehicle 1, and a pair of left and right front side frames 3 extending in the front-rear direction are disposed on the left and right sides of the engine room 2. The rear end portion of the engine room 2 is partitioned from the vehicle compartment 5 by the dash panel 4, and the rear end portions of the pair of front side frames 3 are coupled to the dash panel 4. A pair of left and right apron members 6 extending in the front-rear direction are disposed on the upper portion of the front side frame 3, and a pair of left and right suspension towers 7 are formed inside the apron member 6. The front side frame 3 is provided with an impact absorbing mechanism such as a crash can (not shown) formed at the front end and a bead (not shown) serving as a folding start point formed in the middle. The impact load transmitted to the passenger compartment 5 due to the deformation of the side frame 3 is reduced.

  The upper portion of the engine room 2 is covered with an inclined bonnet 8 (see FIGS. 3 and 4) formed so as to be inclined forward and inclined downward toward the outside in the vehicle width direction. Inside the engine room 2 are an in-line four-cylinder engine 9, a transmission (not shown) connected to the engine 9, an electronic unit 10 that controls the engine 9 and various control system devices, a battery 11, and an air cleaner 12. Various mechanisms and parts are accommodated and arranged.

The engine 9 is a multi-cylinder gasoline engine having a DOHC type valve mechanism having an intake camshaft (not shown) and an exhaust camshaft (not shown).
The engine 9 is mounted horizontally in the engine room 2 so that the output shaft extends in the vehicle width direction, and is supported by a pair of front side frames 3 via an engine mount (not shown) at a plurality of locations. As shown in FIGS. 3 and 4, the engine 9 is slanted in a rearwardly inclined manner so that the engine 9 is positioned rearward of the vehicle. Thereby, the bonnet 8 can be arrange | positioned in the downward position of the vehicle 1, and the low bonnet is achieved.

  As shown in FIGS. 3 to 5, the engine 9 includes a cylinder block 13 having four cylinders (not shown) in the vehicle width direction, a cylinder head 14 assembled on the top of the cylinder block 13, and a cylinder head 14. The cylinder head cover 15 made of a polyamide-based synthetic resin (for example, PA66) assembled to the upper part of the cylinder, the oil pan (not shown) assembled to the lower part of the cylinder block 13 and the like. An engine cover 40 that covers the upper portion of the engine 9 is attached to the engine 9.

  The cylinder head 14 includes an intake manifold 16 made of synthetic resin, an exhaust manifold 17 made of cast iron, a vacuum pump 18, a fuel pump 19 capable of supplying fuel to an injector (not shown) corresponding to each cylinder, a power A steering pump (not shown), a cam angle sensor (not shown), and the like are attached.

  Each intake passage of the intake manifold 16 is formed in a substantially curved shape that is curved forward and downward from the cylinder head 14 in a side view, and the downstream end corresponds to each cylinder formed in the vehicle front side wall portion of the cylinder head 14. The upstream end of each cylinder block 13 is connected to a surge tank 20 installed on the front side wall of the vehicle. An air cleaner 12 (see FIG. 1) and a throttle body 21 attached to the surge tank 20 are connected by an intake passage 22.

  As shown in FIG. 5, the intake manifold 16 is integrally formed with two left and right engaging portions 23, 23 for fixing the engine cover 40 to the engine 9. Each of the engaging portions 23, 23 is located between the two intake passages located on the left side and in the vicinity of the vehicle front side wall portion of the cylinder head 14, and between the two intake passages located on the right side and of the cylinder head 14. It is erected upward in the vicinity of the vehicle front side wall portion. The engaging portion 23 includes a spherical fitting portion 23a at the upper end and a support portion 23b that supports the fitting portion 23a from below.

  Each exhaust passage of the exhaust manifold 17 has an upstream end connected to an exhaust port formed on the vehicle rear side wall of the cylinder head 14 corresponding to each cylinder. The exhaust passages are once gathered at a downstream position, and this gathering portion is connected to a catalyst 24 arranged at a vehicle rear position of the engine 9.

  The vacuum pump 18 and the fuel pump 19 are held on the right side wall portion of the cylinder head 14. The vacuum pump 18 is negatively pressured by a cam portion (not shown) formed on the distal end side of a shaft portion in which a right end portion of an exhaust camshaft rotatably disposed on the rear side of the vehicle extends to the right outer side of the cylinder head 14. It is configured to generate.

  The fuel pump 19 is provided between the vacuum pump 18 and the right side wall portion of the cylinder head 14, and, like the vacuum pump 18, fuel is supplied by a cam portion (not shown) formed on the extension shaft portion of the exhaust camshaft. It can be introduced and discharged. The fuel pump 19 includes an introduction pipe 19a for introducing fuel, a discharge pipe 19b for supplying fuel to each injector, and the like.

  The fuel stored in the fuel tank has a metal fuel supply pipe 25 connected at one end to a fuel filter (not shown) disposed on the dash panel 4 and one end at the other end of the fuel supply pipe 25. The other end portion is supplied to the fuel pump 19 through the engine-side hose 26 made of synthetic resin and connected to the introduction pipe 19a.

  The fuel supply pipe 25 is disposed so as to rise upward from the lower position of the engine room 2 toward the front side. As shown in FIGS. 2 and 3, the other end of the fuel supply pipe 25 is positioned near the center on the right side in the vehicle width direction of the engine 9 in a plan view and the vehicle rear side end of the engine cover 40 in a side view. It is located above the part.

The other end portion of the fuel supply pipe 25 is connected to one end portion of the engine side hose 26 via a detachable connector 27 (fuel system component) made of synthetic resin. The connector 27 is disposed so as to be positioned between the upper surface of the engine cover 40 and the lower surface of the bonnet 8 in a side view.
The connector 27 includes a connector main body having a connection hole, a retainer that can be fitted into the connector main body, a seal member, a stopper ring, a seal lip, and the like. Therefore, it is easy to attach and detach the fuel supply pipe 25 and the engine side hose 26 at the time of service, and work efficiency can be increased.

  The engine-side hose 26 extends from the position where one end is connected to the other end of the fuel supply pipe 25 by the connector 27, that is, from the so-called connector arrangement position to the left in the vehicle width direction, and near the center portion on the left in the vehicle width direction of the engine 9. It is connected to the return introduction pipe 19a at a position. The folded portion of the engine side hose 26 is supported by a clip 29 fixed to the cylinder head 14. Thereby, even when a relative movement occurs between the engine 9 and the fuel supply pipe 25 that is the vehicle body side member, the relative movement can be absorbed by the deformation of the folded portion of the engine side hose 26.

Next, the cylinder head cover 15 will be described.
As shown in FIGS. 3 to 5, the cylinder head cover 15 is attached to the cylinder head 14 so as to cover the upper part of the cylinder head 14. The cylinder head cover 15 corresponds to the first bulging portion 15a as a cam cover formed corresponding to the intake camshaft disposed on the vehicle front side and extending in the vehicle width direction, and the exhaust camshaft disposed on the vehicle rear side. A second bulging portion 15b as a cam cover formed and extending in the vehicle width direction, an oil injection portion 30 having an opening through which oil can be injected into the cylinder head 14, a gauge mounting portion 32 to which an oil level gauge 33 can be mounted, etc. Are integrally formed.

  Between the first bulging portion 15a and the second bulging portion 15b, four plaque holes are provided in the vehicle width direction according to the combustion chamber (not shown) of each cylinder, and an ignition plug is provided in each plaque hole. (Not shown) is mounted. An oil separator space partitioned by a plurality of baffle plates is formed in the upper space in the second bulging portion 15b.

  The oil injecting portion 30 is located at a substantially central portion in the vehicle width direction of the first bulging portion 15a, that is, between the so-called second cylinder and the third cylinder, and is formed at the vehicle front position. The oil injection part 30 includes a cylindrical part 30a that protrudes upward from the upper surface of the first bulging part 15a, a front side wall part 30b that is formed in a vehicle front portion of the cylindrical part 30a and extends in the vertical direction, and a front side wall part 30b. It is comprised from the protrusion part 30c etc. which protruded ahead from the upper end part of the vehicle. A thread groove is formed on the inner peripheral surface of the upper end portion of the cylindrical portion 30a, and the filler cap 31 is screwed so as to close the upper end opening.

  The gauge mounting portion 32 is located on the left side of the first bulging portion 15a in the vehicle width direction, between the so-called first cylinder and the second cylinder, and is disposed at the vehicle front position. The gauge mounting portion 32 includes a cylindrical portion 32a that protrudes upward from the upper surface of the first bulging portion 15a. An oil level gauge 33 is attached to the upper end portion of the cylindrical portion 32a so as to close the upper end opening.

The cylinder head cover 15 is integrally formed with two holding portions 34 and 35 for fixing the engine cover 40 to the engine 9.
The holding portion 34 is disposed at the left front end position of the cylinder head cover 15, supports a substantially tapered mount rubber portion 34 a that can be fitted to a fitting portion 49 a formed on the engine cover 40, and the mount rubber 34 a, and the first portion. The support part 34b which protruded upwards from the upper surface of the 1 bulging part 15a is provided. The holding portion 35 is disposed at the right rear end position of the cylinder head cover 15, and similarly to the holding portion 34, the mounting rubber portion that can be fitted to the fitting portion 48 a formed on the engine cover 40, and the mount rubber portion. A supporting portion for supporting is provided.

Next, the engine cover 40 will be described.
As shown in FIGS. 1, 2, 6, and 7, an engine cover 40 made of a polyamide-based synthetic resin (for example, PA 6) includes a main body portion 41 that covers an upper portion of the center portion of the engine 9, and a left side portion of the engine 9. The first side portion 42 covering the upper side and the second side portion 43 covering the upper right portion of the engine 9 are integrally formed.

As shown in FIG. 2, the engine cover 40 is formed from a position in the vicinity of the front end portion of the intake manifold 16 to a position above the vehicle rear side wall portion of the cylinder head 14 in a plan view. It is configured in a substantially symmetrical trapezoidal shape with a narrow width.
As shown in FIGS. 2 to 4, the main body 41 has a rear end that overlaps with the connector 27 in a plan view so that the rear end of the first and second side portions 42 and 43 is positioned in front of the vehicle. The rear portion that is formed and overlaps with the connector 27 in plan view is formed in a downwardly inclined manner.

  The main body 41 includes a substantially elliptical recessed portion 44 recessed downward, a circular first opening 45 formed in the recessed portion 44, and a recessed portion 44 formed adjacent to the first opening 45. A second opening 46 formed at the position, two holding portions 47 and 47 formed at the front position of the main body 41 and adjacent to each other in the vehicle width direction, and an engagement formed at the rear position of the main body 41. And a projecting member 50 formed at a substantially central position of the main body 41.

  As shown in FIG. 2, the recessed portion 44 is formed corresponding to the upper positions of the oil injection portion 30 and the gauge mounting portion 32. The first opening 45 serving as a service hole is configured such that the filler cap 31 can be inserted at a position facing the filler cap 31 that closes the oil injection portion 30 (approximately the center position in the vehicle width direction of the engine 9). The first opening 45 has a tapered surface extending downward from the bottom surface of the recessed portion 44 and is formed in a partial conical shape. The second opening 46 as a service hole is configured such that the oil level gauge 33 can be inserted at a position facing the oil level gauge 33 that closes the gauge mounting portion 32. The second opening 46 is formed in a partial conical shape with a tapered surface extending downward from the bottom surface of the recessed portion 44.

  The holding portions 47 and 47 are formed so as to be engageable with the left and right engaging portions 23 and 23 formed in the intake manifold 16. Each of the holding portions 47 and 47 includes a substantially tapered mount rubber portion 47a that can be fitted to the fitting portion 23a, and a support portion 47b that supports the mount rubber 47a and protrudes downward from the lower surface of the main body portion 41. ing.

  The engaging portion 48 is formed so as to be engageable with a holding portion 35 formed at the right rear end position of the cylinder head cover 15. The engaging portion 48 includes a spherical fitting portion 48 a that can be fitted to the mount rubber portion of the holding portion 35, and a support portion 48 b that supports the fitting portion 48 a and protrudes downward from the lower surface of the main body portion 41. Has been.

  The protruding member 50 extends downward from the lower surface of the main body 41 (on the engine 9 side) at the vehicle front position of the first opening 45, that is, the vehicle front position of the cylindrical portion 30a, and is provided on the front side wall 30b. It is formed to bend toward the vehicle rear side at a position below 30c. The lower end portion of the protruding member 50 is formed in a partial annular shape so as to follow the outer peripheral surface of the cylindrical portion 30a. The separation distance between the lower end portion of the protruding member 50 and the outer peripheral surface of the cylindrical portion 30a is set to be larger than the distance that the protruding portion 30c protrudes forward from the outer peripheral surface of the cylindrical portion 30a. Thereby, when an impact load to the rear of the vehicle is applied to the engine cover 40, the movement of the protruding member 50 to the rear of the vehicle is restricted by contact with the front side wall 30b, and the lower end of the protruding member 50 protrudes from the lower end. The protrusion member 50 can be prevented from moving rearward by engagement with the portion 30c. In addition, when the engine cover 40 is attached / detached, the working efficiency can be increased without interference between the projecting member 50 and the projecting portion 30c.

  The base end portion of the protruding member 50 is connected to the lower surfaces of the main body portion 41 and the recessed portion 44 and the back surface of the tapered portion of the first opening 45. The projecting member 50 is formed corresponding to the arc of the vehicle front side portion of the first opening 45, and the width of the projecting member 50 in the vehicle width direction is formed larger than the width of the front side wall portion 30b in the vehicle width direction. Yes. The protruding member 50 has a plurality of vertical ribs 51 extending in the vertical direction on the vehicle front side wall portion, and a plurality of horizontal ribs 52 extending in the vehicle width direction intersecting the vertical rib 51 on the vehicle front side wall portion. Therefore, it is possible to increase the mounting strength of the protruding member 50 to the main body 41 and to prevent the protruding member 50 from being damaged by an impact load. A screw hole 55 is provided at the intersection of the vertical rib 51 and the horizontal rib 52.

  The rear end portions of the first side portion 42 and the second side portion 43 are formed at a vehicle rear position relative to the rear end portion of the main body portion 41. An engaging portion 49 is formed in the vehicle front-rear direction intermediate portion of the first side portion 42. The engaging portion 49 is formed so as to be engageable with the holding portion 34 formed at the left front end position of the cylinder head cover 15. The engaging portion 49 includes a spherical fitting portion 49a that can be fitted to the mount rubber portion 34a of the holding portion 34, and a support portion 49b that supports the fitting portion 49a and protrudes downward from the lower surface of the first side portion 42. It consists of and.

Next, the behavior of the protruding member 50 and the oil injection part 30 at the time of collision will be described based on FIGS.
As shown in FIG. 8, butt out member 50 of the front collision, the cylindrical portion 30a by a predetermined distance of the oil injection unit 30 spaced apart from being arranged ahead of the vehicle position. The lower end portion of the projecting member 50 is disposed at a lower position than the projecting portion 30c, and is disposed at a vehicle front position from the front end portion of the projecting portion 30c.

As shown in FIG. 9, when an impact absorbing mechanism such as a crash can provided on the front side frame 3 is activated by a collision of the vehicle 1 and the front end portion of the intake manifold 16 is crushed and deformed, A rear impact load is applied.
At this time, the engine cover 40 starts moving rearward of the vehicle, for example, by a direct pushing operation to the engine cover 40 or backward movement of the holding portion 23. As the engine cover 40 moves, the protruding member 50 moves backward, and the lower end portion of the protruding member 50 and the front side wall portion 30b of the oil injection portion 30 come into contact with each other, thereby restricting the movement of the engine cover 40 toward the rear of the vehicle. . Incidentally, the front wall portion 30b because it is located in the vehicle width direction substantially central position of the engine 9, the engine cover 40 is rotated operation with a rotation around the oil filler section 30 is restricted.

  As shown in FIG. 10, when the impact load due to the collision further increases, the impact load to the rear of the vehicle acting on the engine cover 40 increases. Since the engine 9 is disposed in the rear slant slant, the engine cover 40 moves upward along the front side wall portion 30b in synchronization with the rearward movement of the vehicle. Thereafter, when the lower end portion of the projecting member 50 is engaged with the projecting portion 30 c, the movement of the engine cover 40 toward the rear of the vehicle is restricted by the oil injection portion 30 and the engine 9 that holds the oil injection portion 30. The movement of the engine cover 40 toward the rear of the vehicle is prevented. Thereby, interference with the engine cover 40 and the connector 27 can be prevented.

  At this time, since the base end portion of the protruding member 50 is connected to the lower surface of the main body portion 41 and the recessed portion 44 and the back surface of the tapered portion of the first opening 45, the mounting strength can be increased due to the rib effect or the like. The peeling of the member 50 from the engine cover 40 can be prevented. Further, since the connector 27 is disposed between the upper surface of the engine cover 40 and the lower surface of the bonnet 8, the engine cover 40 is moved until the lower end portion of the protruding member 50 and the protruding portion 30 c are engaged. Even if the vehicle moves rearward, interference between the engine cover 40 and the connector 27 can be avoided. When the bonnet 8 is bent downward due to the impact, the rear end portion of the main body portion 41 overlapping with the connector 27 in a plan view is positioned at the front side of the vehicle with respect to the rear end portions of the first and second side portions 42 and 43. Thus, the connector 27 is prevented from being sandwiched between the engine cover 40 and the lower surface of the bonnet 8.

Next, operations and effects of the vehicle engine cover structure according to the first embodiment will be described.
This vehicle engine cover structure is a vehicle engine cover structure in which an engine 9 is mounted in an engine room 2 formed at the front of a vehicle body, and an engine cover 40 that is fixed to the engine 9 and covers an upper portion of the engine 9 is provided. The fuel system component (connector 27) disposed at the vehicle rear position of the engine cover 40, the projecting member 50 projecting from the engine cover 40 toward the engine 9, and the engine cover 9 fixed to the engine 9 and disposed at the vehicle rear position. The locking member (the front side wall portion 30b and the protruding portion 30c) is provided, and the locking member locks the protruding member 40 when the impact load to the rear of the vehicle acts on the engine cover 40, and the engine cover 40. The rearward movement of the vehicle can be regulated.

  According to the engine cover structure of the vehicle, since the protruding member 40 that protrudes from the engine cover 40 toward the engine 9 and the locking member that is fixed to the engine 9 and disposed at the rear side of the protruding member 50 are provided. When the impact load to the rear of the vehicle acts on the engine cover 40, the locking member can lock the protruding member 50, and the relative movement of the engine cover 40 to the rear of the vehicle with respect to the engine 9 can be restricted. Therefore, it is possible to protect the fuel system parts arranged at the vehicle rear position of the engine cover 40 from the interference with the engine cover 40, and to prevent the fuel system parts from being damaged or disengaged.

The engine 9 is mounted horizontally in the engine room 2 so that the output shaft extends in the vehicle width direction and is slanted in a slanted rear direction, so that the fuel system components and the engine cover 40 are reduced while reducing the bonnet of the vehicle 1. Interference can be suppressed.
Since the protruding member 50 and the locking member are respectively installed at the substantially central portion in the vehicle width direction of the engine 9, when an impact load from the front to the rear of the vehicle acts on the engine cover 40, one set of the locking member and the protruding member 50. Thus, rotational movement about the locking member of the engine cover 40 as a rotation center can be suppressed, and interference between the rear end portion of the engine cover 40 on one side in the vehicle width direction and the fuel system parts can be suppressed.

  An oil injection part 30 that protrudes upward from the upper part of the engine 9 and that can inject oil into the engine 9 is provided. The locking member is a vehicle front side wall part 30b of the oil injection part 30 and the front side wall part 30b forward of the vehicle. Since the projecting portion 30c protrudes, the impact load can be supported by the front side wall portion 30b of the highly rigid oil injection portion 30, and the rearward movement of the engine cover 40 can be reliably restricted by the projecting portion 30c. .

  A filler cap 31 for closing the upper end opening of the oil injection portion 30 and a first opening 45 into which the filler cap 31 can be inserted at a position facing the filler cap 31 of the engine cover 40 are provided, and the protruding member 50 has a first opening. Since the first opening 45 serving as the service hole of the filler cap 31 is formed at the vehicle front position of the portion 45, the protruding member 50 can be disposed at a position corresponding to the front side wall portion 30b and the protruding portion 30c. The attachment strength of the member 50 to the engine cover 40 can be increased.

  Since the fuel system component is provided between the upper surface of the engine cover 40 and the lower surface of the bonnet 8, when the engine cover moves rearward due to an impact load applied to the engine cover 40, the fuel system component and the engine cover Interference can be suppressed.

  The engine cover 40 is formed so that the rear end portion of the main body portion 41 overlapping with the fuel system parts in plan view is located at the vehicle front position relative to the rear end portions of the first and second side portions 42 and 43. In the case of a collision mode in which the 8 is folded downward in a valley shape, even if the fuel system component is pushed downward from the bonnet 8, the fuel system component can be prevented from being damaged without being sandwiched between the hood 8 and the engine cover 40.

The engine cover 40 has a rear end portion of the main body 41 that overlaps with fuel system parts in plan view, and is formed in a downwardly inclined manner. Then, interference between the fuel system parts and the engine cover 40 can be suppressed.
Since the fuel system part is the fuel connector 27 made of synthetic resin, it is possible to suppress the occurrence of fuel leakage due to damage or disconnection of the fuel connector 27 made of synthetic resin at the time of the front collision of the vehicle 1.

Next, Example 2 will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to Example 1. FIG.
As shown in FIG. 11, a weakened portion 53 having a lower strength than other portions is formed on the lower surface of the engine cover 40 </ b> A at the vehicle forward position of the protruding member 50.

As shown in FIG. 12, the fragile portion 53 is formed by a plurality of groove portions 53a extending in the vehicle width direction. The groove portion 53a is configured to be thinner than other portions.
The width of the groove 53a in the vehicle width direction is formed to be larger than the width of the protruding member 50 in the vehicle width direction. Therefore, the impact load acting on the engine cover 40A at the time of collision can be absorbed by the crushing deformation of the fragile portion 53, and concentration of the impact load transmitted to the base end portion of the projecting member 50 can be prevented, and damage to the projecting member 50 can be prevented. Can be prevented.

Next, Example 3 will be described based on FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to Example 1. FIG.
As shown in FIGS. 13 and 14, the protruding member 50 </ b> A provided on the engine cover 40 </ b> B includes a plurality of vertical ribs 51 extending in the vertical direction on the vehicle front side wall and a vehicle that intersects with the vertical ribs 51 on the vehicle front side wall. A plurality of horizontal ribs 52 extending in the width direction, a plate-shaped metal reinforcing member 54 provided on the front side wall surface of the protruding member 50A, and the like are provided. A screw hole 55 is formed at the intersection of the vertical rib 51 and the horizontal rib 52 on the vehicle front side wall surface of the protruding member 50A.

  The reinforcing member 54 extends downward from the position near the lower surface of the main body 41 so as to cover the vehicle front side from the base end position of the projecting member 50A to the lower front end portion, and is provided on the front side wall portion 30b. It is formed to bend toward the vehicle rear side at a position below the protrusion 30c. In a region extending from the lower front end portion of the reinforcing member 54 to the bent portion, a slit portion 54a into which the vertical rib 51 can be fitted is provided so as to extend in the longitudinal direction of the vehicle body. The reinforcing member 54 is attached to the protruding member 50 </ b> A via the screw 56 after the vertical rib 51 and the slit portion 54 a are fitted and positioned.

  As shown in FIG. 15, when an impact load to the rear of the vehicle is applied to the engine cover 40B, the protruding member 50A moves to the rear of the vehicle from the position shown in FIG. And the front side wall portion 30b of the oil injection portion 30 come into contact with each other to restrict the movement of the engine cover 40B toward the rear of the vehicle.

  As shown in FIG. 16, when the impact load to the rear of the vehicle with respect to the engine cover 40B increases, the projecting member 50A, the lower end portion of the reinforcing member 54, and the projecting portion 30c are engaged, and the vehicle of the engine cover 40B is engaged. Prevent backward movement. At this time, since the reinforcing member 54 is mounted on the vehicle front side of the protruding member 50A, the rigidity of the protruding member 50A including the reinforcing member 54 can be increased, and even when the impact load acting on the engine cover 40B is concentrated on the protruding member 50A. Breakage of the protruding member 50A can be prevented.

Next, Example 4 will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to Example 1. FIG.
As shown in FIGS. 17 to 20, the engine cover 40 </ b> C is formed with four boss portions 41 a that are arranged in two rows in the vertical and horizontal directions extending downward from the lower surface of the main body portion 41 at the vehicle front position of the protruding member 50 </ b> B. Yes. The boss portion 41a is formed with a screw hole (not shown) for a screw 58 for fixing the plate-shaped metal reinforcing member 57 (deformation promoting portion) to the engine cover 40C.

  The reinforcing member 57 includes a reinforcing portion 57a formed so as to cover the vehicle front side and the lower side wall surface of the protruding member 50B, a mounting portion 57b extending to the front of the vehicle connected to the upper end portion of the reinforcing portion 57a, and a front end portion of the mounting portion 57b. And a deformation promoting portion 57c that extends upward to a position near the lower surface of the main body 41. A wedge-shaped blade is formed at the upper end of the deformation promoting portion 57c.

As shown in FIG. 19, when an impact load to the rear of the vehicle is applied to the engine cover 40C, the protruding member 50B moves from the position shown in FIG. 18 to the rear of the vehicle, and the lower tip of the protruding member 50B and the reinforcing portion 57a. And the front side wall part 30b of the oil injection part 30 abut.
As shown in FIG. 20, when the impact load on the engine cover 40C toward the rear of the vehicle increases, the projecting member 50B, the lower end portion of the reinforcing portion 57a, and the projecting portion 30c are engaged, and the vehicle of the engine cover 40C is engaged. Prevent backward movement. At this time, the reinforcing member 57 rotates clockwise around the fixed portion of the screw 58 by the load input from the reinforcing portion 57a. By this turning operation, the blade of the deformation promoting portion 57c comes into contact with the lower surface of the main body portion 41, and the front portion of the vehicle is deformed by the protruding member 50B of the main body portion 41.

  As a result, a deformation promoting portion 57c is provided at the vehicle front side end portion of the reinforcing member 57 so as to be able to form a deformation starting point by contacting the engine cover 40C from below when an impact load to the rear of the vehicle is applied to the engine cover 40C. Therefore, while increasing the rigidity of the projecting member 50B, the impact load is absorbed by the deformation of the vehicle front position from the projecting member 50B of the engine cover 40C, and concentration of the impact load transmitted to the projecting member 50B can be prevented. Can be prevented from being damaged.

Next, a modification in which the above embodiment is partially changed will be described.
1) In the above-described embodiment, an example in which the connector as the fuel system component is disposed between the upper surface of the engine cover and the lower surface of the bonnet has been described. However, at least a position where there is a possibility of contact with the engine cover moved rearward of the vehicle It is applicable to fuel system parts arranged in A position lower than the upper surface of the engine cover, such as the vehicle rear position of the engine cover, may be used. In this case, interference between the bonnet and the fuel system parts can be suppressed even in a collision form in which the bonnet is folded downward in a valley shape.

2] In the above-described embodiment, the example in which the fuel system component is a connector has been described. However, the fuel system component can be applied to fuel system components other than the connector, and is applied to various fuel system components such as a fuel filter and a fuel pipe. In this case, the same effect as the present invention can be obtained.
3) In the above embodiment, the example in which the oil injection portion is used to form the front side wall portion and the protruding portion as the locking member has been described. However, the location where the locking member is formed is not limited to the oil injection portion. Even if it is a bulging part as, it can have the same effect.

4) In the above embodiment, the engine side engaging portion to which the engine cover is fixed is formed on the intake manifold. However, the present invention is not limited to the intake manifold, and the engine cover can be fixed to the head cover, the engine body, or the like. It is also possible to form a portion, and the same effect as the present invention can be achieved.

5) In addition, those skilled in the art can implement the present invention in various forms with various modifications without departing from the spirit of the present invention, and the present invention includes such modifications. is there.

  The present invention relates to a vehicle engine cover structure including an engine cover that covers an upper portion of an engine, and by restricting movement of the engine cover to the rear of the vehicle, a fuel system component disposed at the vehicle rear position and the engine cover are provided. Interference can be suppressed.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Engine room 8 Bonnet 27 Fuel connector 30 Oil injection part 30b Vehicle front side wall part 30c Protrusion part 31 Filler cap 40, 40A Engine cover 40B, 40C
41 Main Body 42 First Side 43 Second Side 45 First Opening 50, 50A Projecting Member 50B
53 Fragile portion 53a Groove portion 54, 57 Reinforcing member 57c Deformation promoting portion

Claims (11)

In the engine cover structure of a vehicle equipped with an engine cover mounted on the engine and covering the upper part of the engine, the engine is mounted in the engine room formed in the front part of the vehicle body.
A fuel system component arranged in the vicinity of the vehicle rear side portion of the engine cover, the fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover. When,
A projecting member projecting from the engine cover to the engine side;
A locking member fixed to the engine and disposed at a vehicle rear position from the protruding member,
The locking member is configured to be able to restrict movement of the engine cover to the rear of the vehicle by locking the protruding member when the engine cover moves rearward due to an impact load applied to the engine cover to the rear of the vehicle. It is,
The vehicle engine cover structure according to claim 1, wherein the protruding member and the locking member are respectively installed at a substantially central portion in the vehicle width direction of the engine.   2. The engine cover structure for a vehicle according to claim 1, wherein the engine is horizontally mounted in an engine room so that an output shaft extends in a vehicle width direction, and is slanted in a slanted rearward direction. In the engine cover structure of a vehicle equipped with an engine cover mounted on the engine and covering the upper part of the engine, the engine is mounted in the engine room formed in the front part of the vehicle body.
A fuel system component arranged in the vicinity of the vehicle rear side portion of the engine cover, the fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover. When,
A projecting member projecting from the engine cover to the engine side;
A locking member fixed to the engine and disposed at a vehicle rear position from the protruding member,
The locking member is configured to be able to restrict movement of the engine cover to the rear of the vehicle by locking the protruding member when the engine cover moves rearward due to an impact load applied to the engine cover to the rear of the vehicle. And
An oil injection part that protrudes upward at the top of the engine and can inject oil into the engine,
It said locking member, said oil and injection of the vehicle front wall, the engine cover structure of vehicles you; and a protrusion protruding from the front wall to the front of the vehicle. A filler cap for closing the upper end opening of the oil injection part;
An opening for inserting the filler cap at a position facing the filler cap of the engine cover;
The vehicle engine cover structure according to claim 3 , wherein the projecting member is formed at a vehicle front position of the opening . In the engine cover structure of a vehicle equipped with an engine cover mounted on the engine and covering the upper part of the engine, the engine is mounted in the engine room formed in the front part of the vehicle body.
A fuel system component arranged in the vicinity of the vehicle rear side portion of the engine cover, the fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover. When,
A projecting member projecting from the engine cover to the engine side;
A locking member fixed to the engine and disposed at a vehicle rear position from the protruding member,
The locking member is configured to be able to restrict movement of the engine cover to the rear of the vehicle by locking the protruding member when the engine cover moves rearward due to an impact load applied to the engine cover to the rear of the vehicle. And
The engine cover engine cover structure of vehicles you characterized as having a low fragile portion in strength than the other portions in the vehicle front position than the projecting member. In the engine cover structure of a vehicle equipped with an engine cover mounted on the engine and covering the upper part of the engine, the engine is mounted in the engine room formed in the front part of the vehicle body.
A fuel system component arranged in the vicinity of the vehicle rear side portion of the engine cover, the fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover. When,
A projecting member projecting from the engine cover to the engine side;
A locking member fixed to the engine and disposed at a vehicle rear position from the protruding member,
The locking member is configured to be able to restrict movement of the engine cover to the rear of the vehicle by locking the protruding member when the engine cover moves rearward due to an impact load applied to the engine cover to the rear of the vehicle. And
Vehicles of the engine cover structure characterized in that mounting the reinforcing member on the vehicle front side of the protrusion member. A deformation promoting portion capable of forming a deformation starting point by contacting the engine cover from below when an impact load to the rear of the vehicle acts on the engine cover is provided at a vehicle front side end portion of the reinforcing member. The engine cover structure for a vehicle according to claim 6 . In the engine cover structure of a vehicle equipped with an engine cover mounted on the engine and covering the upper part of the engine, the engine is mounted in the engine room formed in the front part of the vehicle body.
A fuel system component arranged in the vicinity of the vehicle rear side portion of the engine cover, the fuel system component that may contact the engine cover when an impact load to the rear of the vehicle acts on the engine cover. When,
A projecting member projecting from the engine cover to the engine side;
A locking member fixed to the engine and disposed at a vehicle rear position from the protruding member,
The locking member is configured to be able to restrict movement of the engine cover to the rear of the vehicle by locking the protruding member when the engine cover moves rearward due to an impact load applied to the engine cover to the rear of the vehicle. And
The fuel system component, an engine cover structure of vehicles you characterized in that provided between the lower surface of the upper surface and the bonnet of the engine cover. The engine cover to claim 8, characterized in that the rear end of the portion overlapping with the fuel system part in plan view is formed so that the front of the vehicle position than the rear end portion of the other part The vehicle engine cover structure as described. The engine cover structure for a vehicle according to claim 9 , wherein the engine cover is formed so that a portion overlapping the fuel system part in a plan view is inclined downward . The engine cover structure for a vehicle according to any one of claims 1 to 10, wherein the fuel system component is a synthetic resin fuel connector .