JP2018062856A - engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine which can inhibit damage of a tubular member during a vehicle front collision even if a state in which an engine hanger is attached to an engine body is maintained.SOLUTION: An engine is disposed spaced away from a metal cowl in an engine room. The engine includes: an engine body; an engine hanger 11; and a tubular member. The engine hanger 11 has a hanger body 110 and a protector 111. The hanger body 110 is attached to a cylinder head of the engine body or an outer peripheral surface of the cylinder block and made of metal. The protector 111 is made of resin or rubber and covers a head of the hanger body 110. Further, inner surfaces 111d1, 111f1 of the protector 111 form spaces SPx, SPz with a tip part front surface 110g1 and a tip part upper surface 111g2 in a tip part 110g of the hanger body 110.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an engine, and more particularly to a structure of an engine hanger that is maintained attached to an engine body even after the engine is mounted on a vehicle.

  In a vehicle such as an automobile, an engine hanger attached to the outer peripheral surface of the engine body is used for loading and unloading the engine at the time of manufacture or repair (Patent Document 1).

  The engine hanger may be attached to the engine body only when the engine is loaded or unloaded, or the engine hanger may be kept attached in relation to peripheral devices of the engine body.

JP 2009-293573 A

  However, in the case where the engine hanger is kept attached to the engine body, it is conceivable that a tubular member such as a fuel hose is pinched between the tip of the engine hanger and the cowl at the time of a vehicle front collision.

  Specifically, the fuel hose and harness may be disposed so as to pass over the engine and pass through a gap between the engine and the cowl. In this case, there is a concern that the gap between the engine and the cowl becomes small at the time of the frontal collision of the vehicle, and the fuel hose or harness is caught between the engine hanger and the cowl. If a situation occurs in which the fuel hose or the like is sandwiched between the engine hanger and the cowl in this way, the fuel hose and the harness may be damaged.

  The present invention is intended to solve the above-described problems, and suppresses damage to the tubular member at the time of frontal collision of the vehicle even when the engine hanger is attached to the engine body. It is an object to provide an engine that can be used.

  The engine according to one aspect of the present invention is arranged in the engine room with a gap with respect to a metal cowl protruding forward from the rear side of the vehicle, and a tubular member is arranged in the gap. It is an engine that has been made. And the engine which concerns on this aspect is provided with an engine main body and an engine hanger.

  The engine body includes a cylinder head and a cylinder block.

  The engine hanger has a hanger body and a protector. The hanger body is attached to the outer peripheral surface of the cylinder head or the cylinder block, and is made of metal. The protector is attached so as to cover at least a part of the edge of the hanger body.

  The hanger body and the cowl are more rigid than the tubular member, and the protector is less rigid than the hanger body.

  In the engine according to this aspect, at least a part of the edge of the hanger body is covered with a protector. For this reason, even if a situation of a vehicle front collision occurs and the tubular member is sandwiched between the cowl and the engine hanger, damage to the tubular member is suppressed by the protector having rigidity lower than that of the hanger body. That is, in the engine according to this aspect, even if the tubular member is sandwiched between the engine hanger and the cowl due to a frontal collision of the vehicle, the low-rigid protector works to alleviate the force of sandwiching the tubular member.

  Therefore, in the engine according to this aspect, even when the state where the engine hanger is attached to the engine body is maintained, the tubular member can be prevented from being damaged at the time of the vehicle front collision.

  In the engine according to another aspect of the present invention, in the above configuration, the protector is configured such that an outer corner portion on the tubular member and the cowl side is a curved surface or an inclined surface.

  In the engine according to this aspect, since the outer corner portion of the protector is formed of a curved surface or an inclined surface, the tubular member substantially comes into surface contact with the outer surface of the protector at the time of front collision of the vehicle. Therefore, in the protector which concerns on this aspect, compared with the case where a tubular member carries out point contact with respect to a protector, it becomes possible to suppress damage to a tubular member more reliably.

  In the engine according to another aspect of the present invention, in the above configuration, the protector is arranged such that a part of the inner surface is spaced from the outer surface of the hanger body.

  In the engine according to this aspect, since a part of the inner surface of the protector and the outer surface of the hanger body are spaced apart from each other, the protector is attached to the hanger body by an amount corresponding to the distance at the time of a vehicle front collision. Can move. Therefore, in the engine hanger according to this aspect, the cushioning property is ensured and the damage to the tubular member can be further suppressed by the gap between the protector and the hanger body.

  Note that it is not always necessary to secure a space in the interval between the protector and the hanger body. For example, it can also be set as the structure filled with the material (material which is easy to deform | transform) whose rigidity is lower than a protector.

  In the engine according to another aspect of the present invention, in the configuration described above, the protector is configured such that a portion other than the part of the inner surface protrudes in a convex shape toward the outer surface of the hanger body. At least a part of the top of the projecting portion protruding from the abutment is in contact with the outer surface of the hanger body.

  In the engine according to this aspect, the distance between the inner surface of the protector and the outer surface of the hanger body is held by a convex portion provided on the inner surface of the protector. Therefore, until an external force is applied to the engine hanger, the distance between the protector and the hanger body is maintained, and cushioning when the external force is applied can be ensured.

  In an engine according to another aspect of the present invention, in the engine body configured as described above, when the side on which the cylinder head is attached with respect to the cylinder block is an upper side in the first direction, the hanger body includes the cylinder head or A base portion attached to an outer peripheral surface of the cylinder block; a trunk portion that is continuous with the base portion and extends upward in the first direction; and a base portion that is continuous with the trunk portion and extends upward in the first direction. And the protector covers at least the head, and the convex portion is directed from the upper side in the first direction to the lower side in the first direction, which is the opposite side. It is provided in a rib shape.

  In the engine according to this aspect, since the convex portion provided on the inner surface of the protector has a rib shape, the protector and the hanger main body can be secured while ensuring high wearability if the protector is mounted in the extending direction of the convex portion. It becomes possible to ensure the space | interval between.

  In the engine according to another aspect of the present invention, in the above-described configuration, the inner surface of the protector is provided with the plurality of convex portions having different projecting directions.

  In the engine according to this aspect, since a plurality of convex portions having different projecting directions are provided, the interval between the inner surface of the protector and the outer surface of the hanger body also corresponds to the projecting direction of the plurality of convex portions. Become multiple. Therefore, in the engine which concerns on this aspect, even when the contact direction of the tubular member with respect to an engine hanger changes with the state of a vehicle front collision, damage to a tubular member can be suppressed correspondingly.

  In the engine according to another aspect of the present invention, in the configuration described above, a part of the inner surface of the protector is a portion facing a tip portion of the head in the hanger body.

  In the engine according to this aspect, a portion (a part of the inner surface) that is spaced between the inner surface of the protector and the outer surface of the hanger body is a tip portion of the head of the hanger body. This is because in the engine hanger, the tip of the head of the hanger body faces the tubular member. By adopting such a configuration, it is possible to effectively suppress the tubular member from being damaged at the time of a vehicle front collision.

  In the engine according to another aspect of the present invention, the protector is made of resin or rubber.

  In the engine according to this aspect, the protector is made of resin or rubber, and the rigidity is lower than that of the metal hanger body. Thereby, it becomes possible to effectively suppress the tubular member from being damaged at the time of a vehicle front collision.

  The engine which concerns on each said aspect can suppress damage to the tubular member at the time of a vehicle front collision, even when maintaining the state which attached the engine hanger to the engine main body.

1 is a schematic side view showing an engine 1 and its peripheral structure according to a first embodiment of the present invention. 1 is a schematic front view showing a configuration of an engine hanger 11. FIG. 2 is a schematic exploded perspective view showing the configuration of the engine hanger 11. FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2, and is a schematic cross-sectional view showing a partial configuration of the engine hanger 11. FIG. 4 is a diagram showing a VV cross section of FIG. 2, and is a schematic cross sectional view showing a partial configuration of an engine hanger 11. FIG. 3 is a cross-sectional view taken along the line VI-VI in FIG. 2, and is a schematic cross-sectional view showing a partial configuration of the engine hanger 11. It is a schematic diagram which shows the engine hanger 11, the fuel hose 12, and the cowl 2. FIG. (A) And (b) is a schematic diagram which shows the engine hanger 11, the fuel hose 12, and the cowl 2 at the time of vehicle front collision. It is the model which shows the engine hanger 81, the fuel hose 12, and the cowl 2 among the structures of the engine which concerns on 2nd Embodiment of this invention, (a) shows the state before a vehicle front collision, ( b) shows the state at the time of vehicle front collision.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The form described below is one embodiment of the present invention, and the present invention is not limited to the following form except for the essential configuration.

[First Embodiment]
1. Engine 1 and its peripheral structure The engine 1 and its peripheral structure according to this embodiment will be described with reference to FIG. FIG. 1 is a schematic side view showing a partial configuration of the engine 1 and its peripheral structure in the engine room. The left side in the X direction is the vehicle front side Fr, and the right side in the X direction is the vehicle rear side Re.

  As shown in FIG. 1, the engine 1 according to the present embodiment is disposed in front of the vehicle Fr rather than the cowl 2 in the engine room. The engine 1 includes an engine body 10 and an engine hanger 11.

  The engine body 10 includes a cylinder head 10a and a cylinder block 10b, and the cylinder head 10a is disposed on the upper side in the Z direction with respect to the cylinder block 10b. The engine body 10 according to the present embodiment is, for example, a multi-cylinder diesel engine, and a detailed illustration is omitted, but a plurality of cylinders are arranged in a direction perpendicular to the paper surface.

  The engine hanger 11 is attached to the outer peripheral surface on the right side in the X direction of the cylinder block 10b of the engine body 10 as indicated by an arrow A. The engine hanger 11 extends upward in the Z direction from a portion (base) attached to the cylinder block 10b. The detailed configuration of the engine hanger 11 will be described later.

  A fuel hose 12 is disposed above the cylinder head 10 a in the engine body 10 and above the engine hanger 11. In other words, the fuel hose 12 is disposed so as to pass above the cylinder head 10 a in the engine body 10 in the Z direction and to pass through the gap between the engine hanger 11 and the cowl 2. The fuel hose 12 is a tubular member made of resin or rubber.

  Although not shown, a plurality of tubular members such as a harness are disposed in addition to the fuel hose 12 in the gap between the engine hanger 11 and the cowl 2.

  The cowl 2 is projected from the vehicle rear Re side toward the vehicle front Fr side with respect to the engine room. The cowl 2 is a metal plate-like member (for example, a steel plate) and has higher rigidity than any of the plurality of tubular members as described above.

2. Configuration of Engine Hanger 11 The configuration of the engine hanger 11 will be described with reference to FIGS.

  As shown in FIGS. 2 and 3, the engine hanger 11 includes a hanger body 110, a protector 111, and a rivet 112.

  The hanger main body 110 is made of metal, and is formed in a state in which the base portion 110a, the trunk portion 110b, and the head portion 110c are continuous from the lower side in the Z direction. The trunk portion 110b is inclined with respect to the Z direction.

  As shown in FIG. 3, the hanger body 110 has three holes 110d, 110e, and 110f. Among these, the holes 110 d and 110 e opened in the base 110 a are holes for attaching the hanger body 110 to the cylinder block 10 b of the engine body 10. The hole portion 110f opened in the head portion 110c is a hole portion that allows the shaft portion 112a of the rivet 112 to be inserted in order to attach the protector 111 to the hanger body 110.

  Further, the hanger body 110 is provided with side edge portions 110h and 110i formed by bending both edge portions in the width direction (Y direction) toward the front side in the X direction. The hanger body 110 is improved in rigidity by forming the side edge portions 110h and 110i.

  An upper end in the Z direction of the hanger body 110 is a tip portion 110g having an arc shape along the hole 110f. And as shown in the part enclosed with the dashed-two dotted line of FIG. 3, the nut part 110j used at the time of engine suspension is weld-joined by the back surface side of the head 110c in the hanger main body 110. As shown in FIG.

  The protector 111 covers the upper head portion 110c of the hanger body 110 in the Z direction. The protector 111 has a cap shape with the Z-direction upper portion closed as a whole.

  As shown in FIG. 3, the protector 111 is provided with a hole 111 a that allows the shaft 112 a of the rivet 112 to be inserted. The protector 111 is formed using a resin material (for example, PBT (polybutylene terephthalate)). Therefore, the protector 111 has a lower rigidity than the metal hanger body 110, the cowl 2, and the like.

  The hanger body 110 has higher rigidity than any of the plurality of tubular members as described above.

3. Detailed Configuration of Engine Hanger 11 The detailed configuration of the engine hanger 11 will be described with reference to FIG. 4 is a view showing a cross section taken along line IV-IV in FIG.

  As shown in FIG. 4, in the engine hanger 11, the head 110 c of the hanger body 110 is housed in the inner space 111 c of the protector 111, and covers both sides in the X direction and the upper side in the Z direction. Specifically, both sides in the X direction with respect to the head portion 110c of the hanger body 110 are covered by the front wall portion 111f and the rear wall portion 111i of the protector 111, and the upper side in the Z direction is the head wall portion 111d of the protector 111. Covered by.

  As described above, the front wall 111f of the protector 111 has a hole 111a that allows the rivet 112 to be inserted, and the rear wall 111i has a hole 111b at the same position. The shaft portion 112a of the rivet 112 inserted through the hole portion 111a is hooked on the inner peripheral wall of the nut portion 110j.

Here, as shown in FIG. 4, in the protector 111, the outer corner portion 111e, which is a butted portion between the head wall portion 111d and the front wall portion 111f, is configured with a curved surface. Specifically, outer corner section 111e is constituted by a curved surface of the rounded corners of a radius of curvature R _111.

In addition, the curvature radius R ₁₁₁ of the outer corner portion 111e in the present embodiment is, for example, about 2.5 mm.

  Next, as shown in a portion surrounded by a two-dot chain line in FIG. 4, the head wall portion 111g and the front wall portion 111f of the protector 111 are arranged with gaps SPx and SPz with respect to the tip portion 110g of the hanger body 110. Has been. Of course, the outer corner portion 111e of the protector 111 is also arranged at a distance from the edge of the tip portion 110g of the hanger body 110.

Specifically, the front wall portion inner surface 111f ₁ of the front wall portion 111f of the protector 111 is in a state where a distance Gx is opened with respect to the front end portion front surface 110g ₁ of the front end portion 110g of the hanger body 110. Further, the head wall portion inner surface 111d ₁ in the head wall portion 111d of the protector 111 is also in a state in which a distance Gz is opened with respect to the tip portion upper surface 110g ₂ in the tip portion 110g of the hanger body 110.

  As will be described later, the gaps SPx and SPz between the tip 110g of the hanger body 110 and the protector 111 are maintained unless an external force exceeding a predetermined value is applied to the protector 111 from the outside.

  Here, the distance Gx is, for example, about 0.5 mm, and the distance Gz is, for example, about 0.5 mm.

4). Detailed Configuration of Protector 111 The detailed configuration of the protector 111 will be described with reference to FIGS. 5 is a view showing a VV cross section in FIG. 2, and FIG. 6 is a view showing a VI-VI cross section in FIG.

  As shown in FIG. 5, the protector 111 has arm portions 111 g and 111 h that cover the periphery of the side edge portions 110 h and 110 i in the hanger body 110.

The arm portion 111g has convex portions 111g ₁ and 111g ₂ that protrude inward. Protrusions 111 g ₁ is made so as to project X inward, at least part of the top portion is in contact with the X-direction end surface of the side edge portion 110h. The convex portion 111g ₂ is provided so as to protrude inward in the Y direction, and at least a part of the top portion is in contact with the outer surface in the Y direction of the side edge portion 110h.

Similarly, the arm portion 111h has convex portions 111h ₁ and 111h ₂ that project inward. The convex portion 111h ₁ protrudes inward in the X direction, and at least a part of the top portion is in contact with the end surface in the X direction of the side edge portion 110i. The convex portion 111h ₂ is projected inward in the Y direction, and at least a part of the top portion is in contact with the outer surface in the Y direction of the side edge portion 110i.

Here, as shown in two portions surrounded by a two-dot chain line in FIG. 5, each of the convex portions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ is provided in a rib shape extending in the Z direction. Yes. The rib widths of these rib-shaped convex portions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ become wider toward the upper side in the Z direction. Accordingly, when the hanger body 110 is inserted into the internal space 111c of the protector 111, the contact area between the protrusions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ and the hanger body 110 increases as the insertion amount increases. Thus, the insertion is stopped at a predetermined position.

Next, as shown in FIG. 6, in the protector 111, the rear wall 111i is also provided with _two convex portions 111i ₁ and 111i ₂ that project inward in the X direction. As shown in the portion surrounded by a two-dot chain line in FIG. 6, each of the _two convex portions 111i ₁ and 111i ₂ is also a rib shape extending in the Z direction, and each rib width goes upward in the Z direction. It is getting wider.

The convex portion 111i ₁ extends upward in the Z direction starting from a portion that contacts the outer edge on the left side in the Y direction of the hole portion 111b. The convex portion 111i ₂ extends upward in the Z direction, starting from a portion in contact with the outer edge on the right side in the Y direction of the hole portion 111b.

As shown in FIG. 6, the two convex portions 111i ₁ and 111i ₂ provided on the rear wall portion 111i abut against a part of the outer surface on the left side in the X direction of the nut portion 110j.

5. Suppression of damage to the fuel hose 12 at the time of frontal collision of the vehicle The suppression of damage to the fuel hose 12 when it is assumed that the vehicle equipped with the engine 1 according to the present embodiment has undergone frontal collision will be described with reference to FIGS. FIG. 7 is a diagram illustrating a state before a vehicle front collision, and FIGS. 8A and 8B are diagrams illustrating a state during a vehicle front collision.

First, as shown in FIG. 7, in the state of the vehicle before突前, between the engine hanger 11 and the cowl 2, in a state where the gap G ₁ is perforated. Thereby, as described above, the gaps Gx and Gz are secured between the hanger body 110 and the protector 111.

  As shown in FIG. 7, the fuel hose 12 is disposed so as to pass above the engine hanger 11 in the Z direction and between the cowl 2 and the engine hanger 11.

  Next, the state at the time of vehicle front collision will be described separately for each moving direction of the protector 111 relative to the hanger body 110.

As shown in FIG. 8A, the engine 1 is pressed toward the vehicle rear side at the time of a vehicle front collision, the cowl 2 and the engine hanger 11 approach each other, and the force B ₁ acts on the engine hanger 11 from the cowl 2. . In the state shown in FIG. 8 (a), under the force _{B 1} from the cowl 2, protector 111 is moved in the X direction with respect to the hanger body 110 (arrow _B 2). Than this, the front wall portion 111f abuts the protector 111 to the distal end portion front surface 110g ₁ of the distal end portion 110g of the hanger body 110.

Incidentally, as shown in FIG. 8 (a), even in the state, the gap between the headwall portion inner surface 111 g ₁ of the headwall portion 111d at the distal end upper surface 110g ₂ and protector 111 of the distal end portion 110g of the hanger body 110 SPz is maintained.

  As described above, even when the fuel hose 12 is sandwiched between the cowl 2 and the engine protector 11, the fuel hose 12 does not directly contact the edge of the hanger body 110, and the curved outer corner of the protector 111 is configured. The portion 111e is hit by the surface.

  In addition, since the gap SPz between the front end portion 110g of the hanger body 110 and the head wall portion 111d of the protector 111 is maintained even during a frontal collision of the vehicle, a certain degree of cushioning is ensured.

  Therefore, in this embodiment, the energy per unit area added to the fuel hose 12 at the time of a vehicle front collision can be reduced.

Next, as shown in FIG. 8 (b), the engine 1 is pressed to the vehicle rear side at the time of the frontal collision of the vehicle, the cowl 2 and the engine hanger 11 approach, and the force C ₁ against the engine hanger 11 from the cowl 2. Works. In the state shown in FIG. 8 (b), under the force _{C 1} from the cowl 2, protector 111 is moved in the Z direction with respect to the hanger body 110 (arrow _C 2). Than this, headwall unit 111d abuts the protector 111 to the distal end portion upper surface 110g ₂ of the distal end portion 110g of the hanger body 110.

Incidentally, as shown in FIG. 8 (b), even in the state, the gap between the front wall portion inner surface 111f ₁ of the front wall portion 111f at the distal end front 110g ₁ and protector 111 of the distal end portion 110g of the hanger body 110 SPx is maintained.

  As described above, even when the fuel hose 12 is sandwiched between the cowl 2 and the engine protector 11, the fuel hose 12 does not directly contact the edge of the hanger body 110, and the curved outer corner of the protector 111 is configured. The portion 111e is hit by the surface.

  In addition, since the gap SPx between the front end portion 110g of the hanger body 110 and the front wall portion 111f of the protector 111 is maintained even during a frontal collision of the vehicle, a certain degree of cushioning is ensured.

  Therefore, in this embodiment, the energy per unit area added to the fuel hose 12 at the time of a vehicle front collision can be reduced.

6). Effect In the engine 1 according to the present embodiment, the head portion 110c of the hanger body 110 is covered with the protector 111 so that the edge of the tip 110g of the hanger body 110 does not directly contact the fuel hose 12 even at the time of a frontal collision of the vehicle. Yes. For this reason, even if the fuel hose 12 that is a tubular member is sandwiched between the cowl 2 and the engine hanger 11 at the time of a frontal collision of the vehicle, damage to the fuel hose 12 is suppressed by the low-rigid protector 111. That is, in the engine 1, even if the fuel hose 12 is sandwiched between the engine hanger 11 and the cowl 2 due to a frontal collision of the vehicle, the low-rigid protector 111 works to alleviate the force of sandwiching the fuel hose 12.

  Therefore, in the engine 1 according to the present embodiment, even when the state where the engine hanger 11 is attached to the engine body 10 is maintained, damage to the fuel hose 12 at the time of a vehicle front collision can be suppressed.

  Further, in the engine hanger 11 according to the present embodiment, the protector 111 outer corner portion 111e is configured by a curved surface. As a result, the fuel hose 12 comes into surface contact with the outer corner portion 111e of the protector 111 at the time of a frontal collision of the vehicle, and the damage to the fuel hose 12 can be more reliably suppressed.

  In the engine hanger 11 according to this embodiment, the gaps SPx and SPz are provided between the hanger body 110 and the protector 111. Accordingly, the protector 111 can move with respect to the hanger body 110 by the gaps SPx and SPz at the time of a vehicle front collision. Therefore, in the engine hanger 11, cushioning properties are ensured by the gaps SPx and SPz between the hanger body 110 and the protector 111, and damage to the fuel hose 12 can be suppressed.

  In this embodiment, the gaps SPx and SPz are left between the protector 111 and the hanger body 110. However, other than this, for example, a material having a lower rigidity than the protector 111 (a material that is easily deformed). ) In between.

In the present embodiment, the gaps SPx and SPz before the front collision of the vehicle are maintained by the plurality of convex portions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ , 111i ₁ , and 111i ₂ protruding from the protector 111. It was. Therefore, it is possible to reliably ensure cushioning when an external force is applied to the engine hanger 11.

[Second Embodiment]
The configuration of the engine according to the second embodiment of the present invention will be described with reference to FIG. In FIG. 9, the engine hanger 81, the fuel hose 12, and the cowl 2 are extracted from the configuration of the engine. FIG. 9A shows a state before the vehicle front collision, and FIG. 9B shows a state at the time of the vehicle front collision.

  9 (a) and 9 (b), the cowl 2 and the fuel hose 12 are the same as those in the first embodiment, and the configuration omitted in the drawing is the same as that in the first embodiment. Therefore, the description below is omitted.

  As shown in FIG. 9A, in the engine hanger 81, a protector 811 is attached to the outer side of the tip 810 g of the hanger body 810. Similar to the first embodiment, the hanger body 810 is made of a metal material, and the protector 811 is made of a resin material (for example, PBT (polybutylene terephthalate)).

Specifically, the distal end portion front surface 810g ₁ of the distal end portion 810g of the hanger body 810, and contact the front wall portion inner surface 811f ₁ of the front wall portion 811f is substantially without gaps in the protector 811, the distal end of the distal end portion 810g of the hanger body 810 the part upper surface 810 g _2, headwall inner surface 811d ₁ of headwall portion 811d of the protector 811 is in close contact substantially without clearance.

Incidentally, as shown in FIG. 9 (a), in the protector 811, butt portion between the front wall portion inner surface 811f ₁ and headwall inner surface 811 d _1, i.e., the inner surface of the outer corner portion 811 e, the corners of the hanger body 810 It is formed at a substantially right angle according to the shape of the portion 810k.

  On the other hand, the outer corner 811e of the protector 811 is configured with a curved surface. Specifically, as in the first embodiment, the outer corner portion 811e is formed of a rounded curved surface having a radius of curvature similar to that of the outer corner portion 111e.

  Next, suppression of damage to the fuel hose 12 at the time of a vehicle front collision will be described with reference to FIG.

  As shown in FIG. 9 (b), in the engine hanger 81 according to the present embodiment, the protector 811 is in close contact with the tip 810g of the hanger body 810, so that there is no gap between the cowl 2 and the engine hanger 81. When the force of the arrow D is applied due to the narrow interval, the damage to the fuel hose 12 is suppressed by the protector 811 having relatively low rigidity. That is, the protector 811 according to the present embodiment is made of the resin material having low rigidity with respect to the hanger body 810 and the like, and further, the portion where the fuel hose 12 contacts is a curved outer corner 811e. Damage to the fuel hose 12 is suppressed.

  In the present embodiment, the engine hanger 81 does not have a space between the tip 810g of the hanger body 810 and the protector 811. Therefore, although the cushioning property due to the space cannot be obtained, the outer side as described above. The damage of the fuel hose 12 can be sufficiently suppressed by the shape of the corner portion 811e and the constituent material of the protector 811.

[Modification]
In the first embodiment and the second embodiment, the protectors 111 and 811 are integrally formed as a cap-shaped member. However, the present invention is not limited to this. For example, a configuration in which a plurality of members are mounted on the hanger main bodies 110 and 810 can be employed.

  In the first embodiment and the second embodiment, PBT is adopted as the constituent material of the protectors 111 and 811, but the present invention is not limited to this. That is, the protector is not particularly limited as long as it has at least lower rigidity than the hanger body. For example, other resin materials or rubber materials can be used, or a metal thin plate can be used. In the case of forming a protector using a thin metal plate, the protector made of the thin metal plate is deformed at the time of a frontal collision of the vehicle, and the cushioning property can be secured by the deformation.

  In the first embodiment and the second embodiment, the protectors 111 and 811 are put on the heads 110c of the hanger main bodies 110 and 810, but the present invention is not limited to this. That is, empirically or experimentally, the protector may be put on a region where the fuel hose 12 abuts at the time of a vehicle front collision in the engine hanger.

  In the first embodiment, the gaps SPx and SPz are opened between the tip 110g of the hanger body 110 and the protector 111. However, the present invention is not limited to this. For example, a member (for example, sponge or rubber) having a rigidity lower than that of the protector may be interposed between the tip of the hanger body and the protector.

  Moreover, in the said 1st Embodiment and the said 2nd Embodiment, although the diesel engine was employ | adopted as the engine main body 10, this invention is not limited to this. For example, a gasoline engine can be employed.

  Moreover, in the said 1st Embodiment and the said 2nd Embodiment, although it was set as the structure which fixed the engine hanger 11 and 81 to the outer surface of the vehicle rear side of the engine main body 10, this invention is not limited to this. Absent. For example, it can be fixed to the outer surface of the engine body on the vehicle front side or the vehicle side side.

  Moreover, in the said 1st Embodiment and the said 2nd Embodiment, although the fuel hose 12 was employ | adopted as an example of a tubular member, this invention is not limited to this. For example, a harness for sending a signal or power, a hydraulic pipe, or the like may be used.

In the first embodiment, the plurality of convex portions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ , 111i ₁ , and 111i ₂ are each formed in a rib shape, but the present invention is not limited to this. It is not something to receive. For example, a plurality of dot-like convex portions may be provided. Further, the convex portion may be deformed by buckling or the like at the time of a vehicle front collision.

In the first embodiment, the plurality of convex portions 111g ₁ , 111g ₂ , 111h ₁ , 111h ₂ , 111i ₁ , 111i ₂ are separated from each other. However, the present invention is not limited thereto. Absent. For example, it is good also as arrange | positioning the continuous rib-shaped convex part.

  In the first embodiment and the first embodiment, the outer corners 111e and 811e of the protectors 111 and 811 are configured by curved surfaces, but the present invention is not limited to this. For example, it is good also as comprising with a slope.

1 Engine 2 Cowl 10 Engine body 11, 81 Engine hanger 12 Fuel hose (tubular member)
110,810 Hanger body 111,811 Protector

Claims (8)

In the engine room, the metal cowl protruding forward from the rear side of the vehicle is disposed with a gap, and the engine in which the tubular member is disposed in the gap,
An engine body having a cylinder head and a cylinder block;
An engine hanger attached to an outer peripheral surface of the cylinder head or the cylinder block, and having a metal hanger body and a protector attached to cover at least a part of an edge of the hanger body; ,
With
The hanger body and the cowl are more rigid than the tubular member,
The protector is less rigid than the hanger body.
engine. The engine according to claim 1,
In the protector, the outer corner portion on the tubular member and the cowl side is configured by a curved surface or a slope.
engine. The engine according to claim 1 or 2, wherein
The protector is arranged such that a part of the inner surface is spaced from the outer surface of the hanger body.
engine. The engine according to claim 3,
The protector has a portion other than the portion of the inner surface protruding in a convex shape toward the outer surface of the hanger body, and at least a portion of the top of the protruding portion protruding in the convex shape. Is in contact with the outer surface of the hanger body,
engine. The engine according to claim 4,
In the engine main body, when the side on which the cylinder head is attached to the cylinder block is the upper side in the first direction,
The hanger body includes a base portion attached to an outer peripheral surface of the cylinder head or the cylinder block, a trunk portion that is continuous with the base portion, and extends upward in the first direction, and is continuous with the trunk portion. And a head extending upward in the first direction,
The protector covers at least the head,
The convex portion is provided in a rib shape extending from the upper side in the first direction toward the lower side in the first direction, which is the opposite side.
engine. The engine according to claim 5, wherein
On the inner surface of the protector, a plurality of the convex portions having different projecting directions are provided.
engine. The engine according to claim 5 or 6, wherein
A part of the inner surface of the protector is a portion facing the tip of the head in the hanger body.
engine. The engine according to any one of claims 1 to 7,
The protector is made of resin or rubber.
engine.

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