JPH0971268A - Hood installing structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the correction process unnecessary by improving the positioning accuracy of an engine hood and front fenders. SOLUTION: In a bump rubber to carry out the positioning of an engine hood 1 which can be opened and closed freely, in its blocking position, as well as to support the engine hood 1, a pair of front fenders 2 are fixed to the positions opposing to the ends of the engine hood 1 respectively, and a prescribed angle of inclined surface 51 to guide the end of the engine hood 1 to the center in the car width direction is formed at the upper part of the bump rubber 5, while a support surface 50 to support the engine hood 1 at a specific height from the bottom surface abutting with the front fenders 2 is formed at the lower part of the bump rubber 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a hood mounting structure capable of assembling a vehicle engine hood and a front fender with high accuracy.

[0002]

2. Description of the Related Art Vehicles such as automobiles are equipped with openable and closable hood members such as an engine hood and a trunk lid. In an assembly line for such hood members, for example, a preassembled radiator is used at the front end. A front fender, a hood lock, and the like are assembled to the core by fastening, and the front end is assembled so that the engine hood hinged to the vehicle body side is locked at a predetermined position.

Explaining this, as shown in FIG. 7, at the position where the engine hood 1 whose front end is openably supported is closed, the upper end 1U ends of both sides of the engine hood 1 and the left and right front ends. The engine hood 1 in the vehicle width direction (X direction in the drawing, the same applies hereinafter) and the gaps ΔX _L , X _R with the inner end of the fender 2 are substantially equal, and in the vehicle body vertical direction (Z direction in the drawing, the same applies below) The assembly is performed so that the gap ΔZ between the upper end 1U and the upper end of the front fender 2 falls within a predetermined range.

In the assembly of this front end, the lower surface of the extending portion 20 of the front fender 2 bent toward the inside of the vehicle body contacts both ends of the upper surface of the radiator core 3 arranged in the vehicle width direction, The bolts inserted into the tight holes 2A formed in the extending portion 20 are screwed into the nuts 30 fixed to the rear surfaces of both ends of the radiator core 3 to connect the front fender 2 to the radiator core 3.

On the other hand, the engine hood 1 is preliminarily attached to the vehicle body via a hinge (not shown) so as to be openable and closable toward the front of the vehicle body, and the striker 7 projecting downward from the front end of the engine hood 1 is almost the radiator core 3. In the central part,
It is selectively locked by a hood lock 81 fastened to a radiator core support 4 arranged in the vehicle body vertical direction (Z direction in the figure).

Positioning of the front fender 2 in the vehicle width direction is performed by restricting the relative displacement of the front fender 2 with the bolt through which the tight hole 2A is inserted in the vehicle width direction, while the engine hood 1 is positioned in the vehicle width direction. Positioning of striker 7
Is positioned in the vehicle width direction at a position where the hood lock 81 engages with the hood lock 81, and the engaging portion 81L with which the hood lock 81 engages the striker 7 restricts the displacement of the striker 7 in the vehicle width direction. The mounting position of the engine hood 1 in the vehicle width direction is determined by the mounting position of the radiator core support 4 that supports the engine.

On the other hand, in the vertical positioning of the vehicle body, the front fender 2 is determined according to the position of the radiator core 3 in the vertical direction of the vehicle body.
And the gap between the upper end of the front fender 2 and the vehicle body in the vertical direction ΔZ
Is performed by the bump rubber 80 screwed to the radiator core 3 because it varies depending on the closed position of the engine hood 1.

The bump rubbers 80, 80 are screwed into screw holes (not shown) formed in the radiator core 3 on both sides of the hood lock 81 facing the lower surface of the engine hood 1. By properly adjusting the screwing amount of the rubber 80, the protrusion height of the bump rubber 80 from the upper surface of the radiator core 3 is adjusted,
A gap ΔZ in the vehicle body vertical direction between the engine hood 1 and the front fender 2 in the closed position is set within a predetermined range.

[0009]

However, in the above-mentioned conventional hood mounting structure, the position of the engine hood 1 in the vehicle width direction is determined by the mounting position of the radiator core support 4 supporting the hood lock 81. The position where the striker 7 is locked varies depending on the vehicle body accuracy σ ₃ between the lock 81 and the nut 30 that attaches the front fender 2, and the gap ΔX _L between the front fender 2 and the vehicle width direction,
X _R becomes non-uniform, and the appearance of the vehicle is impaired. Similarly, the gap ΔZ between the engine hood 1 and the front fender 2 at the closed position is the same as the bump rubber 8
Since the variation σ ₂ of the screwing amount of 0 and the vehicle body accuracy σ ₁ of the mounting surface of the nut 30 of the radiator core 3 to the mounting surface of the bump rubber 80 vary depending on the engine hood 1 and the front fender 2 in the vertical direction of the vehicle body. can not be uniformly manage the gap [Delta] Z, after assembly of the front end exit correct these body accuracy and variation σ ₁ ~σ _3, a uniform gap [Delta] X _L of the engine hood 1 and the front fender 2, X _R, and Z Therefore, there is a problem that a correction process for adjusting the building after the completion of the assembly is required and the productivity is reduced.

Therefore, the present invention has been made in view of the above problems, and provides a hood mounting structure for a vehicle in which the engine hood can be assembled with high accuracy regardless of the vehicle body accuracy and the correction process can be omitted. With the goal.

[0011]

According to a first aspect of the present invention, a pair of fenders are fastened by being superposed on the upper surfaces of both ends of a structural member arranged in the vehicle width direction, and a base end of the fender is located at a predetermined position of a vehicle body. A hood member hingedly connected to the other end of the hood member, the other end of which can be opened and closed toward the structural member, and the hood member is interposed between the hood member and the structural member or fender to support the hood and a closed position of the hood. A bump rubber formed of an elastic body for positioning, a striker formed on the hood toward the structural member, and a hood lock fixed to the structural member to selectively lock the striker. In a vehicle hood mounting structure, the bump rubber is fixedly provided at positions where the pair of fenders are opposed to ends of a hood member in a vehicle width direction, and the hood is provided above the bump rubber. An inclined surface with a predetermined angle is formed to guide the end of the material toward the center in the vehicle width direction, while a hood member is supported on the lower part of the bump rubber at a predetermined height from the bottom surface in contact with the fender. Form a support surface.

A second aspect of the present invention is the bump rubber according to the first aspect, wherein the lower portion of the bump rubber having a supporting surface has a predetermined elasticity capable of supporting the hood member, and the inclined surface. The upper portion formed with is composed of a second elastic member having elasticity lower than that of the first elastic member.

In a third aspect based on the first aspect, the hood lock is formed to allow displacement of the striker in the vehicle width direction.

Further, in a fourth aspect based on the first aspect, at the mounting position of the bump rubber, a nut that is projecting from the structural member and screwed into a stud bolt penetrating the fender is disposed. On the bottom surface of the bump rubber, a hole is formed to fit with the nut and the stud bolt protruding from the nut.

[0015]

Therefore, in the first aspect of the invention, the hood member arranged between the pair of fenders fastened to the structural member is openably and closably supported with respect to the structural member arranged in the vehicle width direction, In the predetermined closed position, the hood is locked to the structural member by locking the strike to the hood lock.

Bump rubbers made of an elastic body having inclined surfaces and supporting surfaces at a predetermined angle are fixed to the fenders facing both ends of the hood member in the vehicle width direction, and the hood member is moved to the closed position. When displaced, both ends of the hood member are guided toward the center in the vehicle width direction along the inclined surfaces of the bump rubber fixed to the fender, and then supported by the supporting surface at a predetermined height from the fender. Therefore, the hood member can be positioned on the basis of the pair of fenders without being affected by the accuracy of the structural members, and the gap between the fender and the hood member in the vehicle width direction and the vehicle body vertical direction can be constantly set to be constant. You can

According to a second aspect of the present invention, the bump rubber is composed of first and second elastic members having different elasticity, the first elastic member having a predetermined elasticity capable of supporting the hood member, and closing the hood member. While suppressing the internal deformation, the second elastic member has elasticity lower than that of the first elastic member, can be deformed according to the vehicle body accuracy in the vehicle width direction, and can guide the hood member to the center in the vehicle width direction. .

According to the third aspect of the invention, the hood member guided by the bump rubber is displaced in the vehicle width direction according to the vehicle body accuracy when the striker is engaged with the hood lock.
Since the hood lock allows the striker to be displaced in the vehicle width direction, the striker can be smoothly locked to reliably close the hood member.

According to a fourth aspect of the present invention, the fastening between the fender and the structural member is made so as to project from the structural member and is also fastened together by a stud bolt and a nut penetrating the fender. A hole opened at the bottom of the bump rubber is fitted to the bump rubber so that the bump rubber is fixed to cover the stud bolt and the nut, and the stud bolt and the nut are not exposed in the gap between the hood member and the fender.

[0020]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

1 to 6 show an embodiment of the present invention, in the same manner as in the conventional example, a pair of left and right front fenders 2 are superposed on and fastened to the upper surface of a radiator core 3, and the engine hood 1 in the closed position is fixed. A hood mounting structure for a vehicle that is positioned at a predetermined position is shown. The same parts as those in the conventional example shown in FIG.

The radiator core 3 as a structural member arranged in the vehicle width direction is fastened with a radiator core support 4 arranged in the vertical direction of the vehicle body at a substantially central portion of the engine as a hood member which can be freely opened and closed. A hood lock 6 that selectively locks a striker 7 provided on the hood 1 is fastened to the radiator core support 4.

The hood lock 6 is arranged in place of the hood lock 81 of the conventional example, and is provided with an engaging portion 6A that allows the displacement of the striker 7 in the vehicle width direction within a predetermined range W. , The displacement of the striker 7 above the vehicle body is selectively restricted.

In place of the nut 30 of the conventional example, stud bolts 8, 8 are fixedly attached to both ends of the radiator core 3 for fastening the front fender 2, respectively. As shown in FIG. The screw portion projects upward from the back surface of the radiator core 3, is inserted into the tight hole 2A of the front fender 2, and the nut 9 is fastened from the upper side in the drawing to the front fender 2 via the extension portion 20.
Are connected to the radiator core 3.

From the radiator core 3 to the front fender 2
As shown in FIG. 5, the engine hood 1 has a pair of stud bolts 8 and nuts 9 protruding from the upper surfaces of the left and right ends of the engine hood 1.
The bump rubber 5 interposed between the front fender 2 and the radiator core 3 is fitted into each other.

The bump rubbers 5, 5 fitted into the left and right stud bolts 8 and nuts 9 are trapezoidal on the upper surface of the first elastic member 5A having a rectangular cross section, as shown in FIG. A second elastic member 5B having a cross section is placed and integrally coupled, and the first elastic member 5A has a support surface 50 that supports the engine hood 1 while abutting the front fender 2 at the bottom surface. Make up the bottom,
The second elastic member 5B forming the upper part includes the engine hood 1
An inclined surface 51 is formed which is capable of guiding the lower end portion 1L (see FIG. 1) of the vehicle from the side and guiding it to the center in the vehicle width direction.

The side surface on the inner side of the vehicle body of the second elastic member 5B for guiding the lower end 1L of the engine hood 1 is formed with an inclined surface 51 directed upward and outward of the vehicle body at a predetermined angle θ with respect to the horizontal plane. The surface 51 is formed to have a predetermined width L in the vehicle width direction toward the outside of the vehicle body, and the pair of bump rubbers 5 and 5 disposed on the pair of left and right front fenders 2 at the coupling position of the radiator core 3 are the inclined surfaces. 51 are opposed to each other with the vehicle width direction centered. According to an experiment conducted by the inventor of the present application, the angle θ and the width L of the inclined surface 51 are preferably in the vicinity of θ = 60 ° and L = 2 mm or more.

The first elastic member 5A constituting the lower part of the bump rubber 5 is provided with a support surface 50 extending from the lower end of the inclined surface 51 toward the inside of the vehicle body and supporting the lower surface of the engine hood 1 with its upper surface. The height H of the engine hood 1 from the bottom surface to the support surface 50 in the vertical direction of the vehicle body is
At a position where L abuts on the support surface 50, a gap ΔZ in the vehicle body vertical direction between the upper surface end portion 1U of the engine hood 1 and the upper end of the front fender 2 is set to a predetermined value.

Here, the bump rubber 5 has a plurality of elasticity, and the spring constant (elasticity) of the first elastic member 5A is the second.
It is set to be larger than the spring constant of the elastic member 5B.

The first elastic member 5A has elasticity capable of supporting the load of the engine hood 1, while the second elastic member 5B is set to be elastic so as to guide the closing engine hood 1 to a predetermined position. As shown, the spring constant of the first elastic member 5A is set so that the deflection when a load F = 10 kg in the vertical direction of the vehicle body is applied is 1.0 mm.
As for the spring constant of the elastic member 5B, the deflection when the component force F ₁ = F cos θ applied to the inclined surface 51 by the load F is applied is 2.0 mm.
Is set.

Since the stud bolt 8 and the nut 9 are fitted to each other, on the lower surface of the bump rubber 5, an engagement hole 52 fitted to the outer periphery of the nut 9 and a screw hole 53 fitted to the stud bolt 8 are coaxial. The engaging hole 52 and the screw hole 53 form a hole.

Assembly of the front end of the vehicle configured as described above will be described below.

First, as shown in FIG. 1, the radiator core support 4 and the hood lock 6 are fastened to the radiator core 3, and the tight holes 2A of the front fender 2 are inserted into the stud bolts 8 as shown in FIG. After that, the nuts 9 are fastened, and the left and right front fenders 2 are connected to the radiator core 3. The engine hood 1 is assembled to the vehicle body in the previous process.

Then, the bump rubber 5 is fitted into the stud bolt 8 and the nut 9 protruding through the radiator core 3 to the upper surface of the extended portion 20 of the front fender 2 so that the bump rubber 5 is fitted to the bottom surface of the bump rubber 5. Front fender 2
It is brought into contact with the extended portion 20 of.

At this time, a pair of left and right bump rubbers 5, 5
Are fitted so that the inclined surfaces 51 face each other toward the center of the vehicle body, and the engaging holes 52 formed inside mesh with the nut 9, and the screw holes 53 engage with the threads of the stud bolt 8.
The bottom surface of the bump rubber 5 is the extension 2 of the front fender 2.
While being in contact with 0, the radiator core 3 is securely coupled without falling off.

The engine hood 1 is closed after the bump rubbers 5 and 5 are assembled.

The front end of the engine hood 1 which is displaced toward the radiator core 3 is, as shown in FIG.
L and 1L are inclined surfaces 51 and 5 of the left and right bump rubbers 5 and 5, respectively.
1 is guided to the support surface 50 along the angle θ of the inclined surface 51 while slidingly contacting each other, and the striker 7 is locked to the hood lock 6 at the position where the lower surface end portions 1L and 1L contact the support surface 50. .

The engine hood 1 is slidably contacted with the sloped surfaces 51 of the left and right bump rubbers 5, 5 so that the bump rubbers 5
The second elastic member 5B constituting the upper part of the engine hood is equally biased toward the inside of the vehicle body to position the engine hood 1 at a predetermined center, and the upper end 1U of the engine hood 1 and the front fender 2 shown in FIG. Gap between the inner edge of and
X _L and X _R are always set to be equal without being affected by the vehicle body accuracy σ ₃ shown in the above-mentioned conventional example, and the engine hood 1 being closed is guided by the bump rubber 5 to cause an error in mounting or an error in vehicle body accuracy. The engaging portion 6A of the hood lock 6 permits the displacement of the striker 7 in the vehicle width direction with a predetermined width W, so that the engine hood 1 and the front fender 2 or Radiator core 3
Even if there is an error in the relative position with respect to the striker 7, the striker 7 can be reliably guided to the inner circumference of the engaging portion 6A, the engine hood 1 can be positioned smoothly, and special positioning adjustment can be performed. without gaps [Delta] X _L in the left and right by simply closing the engine hood 1, it is possible to set the X _R to be equal.

The bump rubber 5 is composed of a first elastic member 5A and a second elastic member 5B having different spring constants (elasticity), and the first elastic member 5A has a spring constant capable of supporting the engine hood 1. , The deflection due to the load of the engine hood 1 can be reduced, and the gap ΔZ between the engine hood 1 and the front fender 2 in the vertical direction of the vehicle body can be always kept constant, while the spring constant of the second elastic member 5B is set to the first elastic member 5A.
When the front fenders 2 and 2 or the radiator core 3 have a large error in vehicle body accuracy in the vehicle width direction, the second elastic member 5B is deformed to absorb these errors and set the engine hood 1 to a lower level. Left and right gap ΔX _L ,
It is possible to guide X _{R to} be equal.

The gap ΔZ in the vehicle body vertical direction between the upper end 1U of the engine hood 1 and the upper end of the front fender 2 is a bump rubber in which the lower end 1L of the engine hood 1 is attached to the extension 20 of the front fender 2. Support surface 5
0, and the supporting surface 50 is disposed at a predetermined height from the extending portion 20 of the front fender 2, so that the vertical gap Δ between the engine hood 1 and the front fender 2 is Δ.
It is possible to accurately position Z with respect to the front fender 2 at all times, and as in the above-mentioned conventional example, the accuracy σ _{1 in} the vehicle body vertical direction of the bump rubber mounting surface and the nut mounting surface of the radiator core 3 and the bump by the operator. As it is not affected by the rubber mounting error σ ₂ , it becomes possible to set the gap ΔZ in the vertical direction of the vehicle body to a predetermined value simply by closing the engine hood 1 as in the vehicle width direction.
The productivity can be improved by eliminating the post-treatment process such as the building adjustment as in the conventional example, and the bump rubber 5 is the first elastic member 5A having elasticity necessary for supporting the engine hood 1. And the second elastic member 5B having elasticity necessary for guiding the engine hood 1, it is possible to reliably position and support the engine hood 1 while suppressing an increase in the number of parts. is there.

Further, the bump rubber 5 is a stud bolt 8
Since it is simply fitted from above to the bump rubber 80, the man-hours can be reduced and productivity can be significantly improved as compared with the case where the height is adjusted while screwing the bump rubber 80 as in the conventional example.
It is possible to shorten the tact time, and since the bump rubber 5 covers the stud bolt 8 and the nut 9, the engine hood 1 as in the prior art example.
Since the bolts are not exposed in the gaps ΔX _L and X _R between the front fender 2 and the front fender 2, the appearance of the vehicle can be improved.

In the above embodiment, the case where the present invention is applied to the engine hood is shown, but it may be applied to a trunk lid or the like although not shown.

[0043]

As described above, according to the first aspect of the present invention, positioning is performed at the closed position of the hood member from the pair of bump rubber inclined surfaces for guiding both ends of the hood member to the center in the vehicle width direction and the fender. Since it is performed by the support surface that supports the hood member at a height of 1, the positioning of the hood member can be performed with high accuracy on the basis of the pair of fenders without being affected by the accuracy of the structural member. It is possible to improve productivity by eliminating the correction process as in the example, and to suppress the increase in the number of parts by positioning with the single bump rubber in the vehicle width direction and the vehicle body vertical direction, and to reduce the manufacturing cost. It is possible to promote the reduction of power consumption, and because the bump rubber is simply fitted into the stud bolt, it is possible to simplify the work of attaching the hood member and shorten the tact time. That.

According to a second aspect of the present invention, the bump rubber is composed of first and second elastic members having different elasticity, the first elastic member having a predetermined elasticity capable of supporting the hood member, and closing the hood member. While suppressing the internal deformation, the second elastic member has elasticity lower than that of the first elastic member and can be deformed according to the vehicle body accuracy in the vehicle width direction to guide the hood member to the center in the vehicle width direction. It is possible to reliably guide and support the hood member with the bump rubber integrally formed.

According to the third aspect of the invention, the hood member guided by the bump rubber is displaced in the vehicle width direction according to the accuracy of the vehicle body when the striker is engaged with the hood lock.
Since the hood lock allows the striker to be displaced in the vehicle width direction, the hood member can be reliably closed while guiding the hood member along the inclined surface.

According to a fourth aspect of the present invention, the fastening between the fender and the structural member is made so as to project from the structural member and is also fastened together by a stud bolt and a nut penetrating the fender. The hole opened on the bottom of the bump rubber fits into the bump rubber, and the bump rubber is fixed so as to cover the stud bolt and nut, and the stud bolt and nut are not exposed in the gap between the hood member and the fender. The aesthetics can be improved.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a front end in a vehicle width direction as seen from the front of a vehicle body, showing an embodiment of the present invention.

FIG. 2 shows a bump rubber, (A) is a plan view,
(B) shows the AA arrow sectional drawing of (A), respectively.

FIG. 3 is a schematic cross-sectional view in the vehicle width direction as seen from the front of the vehicle body, showing the relationship between the engine hood and the bump rubber in the closed position.

FIG. 4 is a cross-sectional view of a main part in a vehicle width direction showing how a front fender is assembled with a radiator core.

FIG. 5 is a sectional view of an essential part showing the manner of assembling the bump rubber.

FIG. 6 is a schematic sectional view showing how the engine hood is positioned.

FIG. 7 is a schematic cross-sectional view in the vehicle width direction as seen from the front of the vehicle body, showing how the conventional engine hood is positioned.

[Explanation of symbols]

 1 engine hood 2 front fender 2A tight hole 3 radiator core 4 radiator core support 5 bump rubber 5A first elastic member 5B second elastic member 6 hood lock 7 striker 8 stud bolt 9 nut 30 through hole 30 nut 50 support surface 51 inclined surface 52 engagement hole 53 screw part

Claims (4)

[Claims] 1. A pair of fenders, which are overlapped and fastened to the upper surfaces of both ends of a structural member arranged in the vehicle width direction, and a base end of which is hinged to a predetermined position of a vehicle body, and the other end of which is aforesaid. A hood member that can be opened and closed toward the structural member, and an elastic body that is interposed between the hood member and the structural member or the fender to support the hood and position the hood in the closed position. A bump rubber, a striker formed on a hood toward the structural member, and a hood lock fixed to the structural member to selectively lock the striker, wherein the bump rubber is provided. The pair of fenders are fixed to the hood member at positions facing the ends of the hood member in the vehicle width direction, and the ends of the hood member are oriented toward the center of the vehicle width direction at the upper part of the bump rubber. While forming an inclined surface at a predetermined angle to guide the hood, a supporting surface for supporting the hood member at a predetermined height from the bottom surface contacting the fender is formed at the bottom of the bump rubber. Vehicle hood mounting structure. 2. The bump rubber has a lower portion having a supporting surface and has a predetermined elasticity capable of supporting a hood member.
2. The vehicle hood mounting structure according to claim 1, wherein the elastic member and the upper portion having the inclined surface include a second elastic member having elasticity lower than that of the first elastic member. 3. The hood mounting structure for a vehicle according to claim 1, wherein the hood lock is formed to allow displacement of the striker in a vehicle width direction. 4. A nut for screwing with a stud bolt protruding from the structural member and penetrating a fender is provided at a mounting position of the bump rubber, and the nut and the nut are provided on a bottom surface of the bump rubber. The hood mounting structure for a vehicle according to claim 1, wherein a hole portion that fits into the protruding stud bolt is formed.