JP4429778B2 - Hood support structure - Google Patents

Description

  The present invention relates to a structure in which a hood that opens and closes an opening of a front portion of a vehicle body is supported on the vehicle body side.

  A hood that closes an opening defined by the body frame is disposed at the front of the vehicle. In a front engine vehicle, a space surrounded by a vehicle body frame forms an engine room, and an engine and its accessories are arranged. The rear end side of the hood is connected to the vehicle body side via a hinge, and a structure in which a latch on the vehicle body side and a detachable striker are provided on the front end side of the hood is general (see, for example, Patent Document 1). In this structure, when the front end of the hood is raised, the hood is opened, and when lowered, the hood is closed.

  Assuming that an obstacle collides from above, the hood located in the front part of the vehicle adopts a structure that reduces the impact at the time of collision. In the hood support structure described in Patent Document 1, the head portion of the hood mounting bolt of the hinge is formed low to ensure the deformation amount of the outer panel near the hinge of the hood at the time of collision. That is, energy can be absorbed by deformation of the outer panel.

Here, as for the rise of the hood in the state in which the latch and the striker are disengaged, those due to human power, those due to gas stays, and the like are known. There is a problem that the burden on the operator of opening and closing the hood is heavy for the thing due to human power, but the problem due to the gas stay can avoid this problem. When the gas stay is used, the gas stay is interposed between the vehicle body and the hood so as to bias the hood in the opening direction.
JP 2000-6845 A

  However, since the gas stay urges the hood in the opening direction, if an obstacle collides with the hood from above, the gas stay will be stretched between the hood and the vehicle body side, impeding shock absorption due to deformation of the hood. End up.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hood support structure capable of effectively absorbing an impact when an obstacle collides with the hood even when a gas stay is used. It is to provide.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a hinge for pivotally connecting the vehicle body and the hood, and a gas stay for supporting both ends of the hood in the opening direction with both ends supported on the vehicle body and the hood. A detachable mechanism for detaching the vehicle side end of the gas stay from the vehicle body side when the hood moves further downward from the closed position, and the vehicle side end of the gas stay When the hood rotates in the opening direction by sliding between a substantially cylindrical tube member formed in the portion and a substantially columnar shaft member that is in sliding contact with the inner surface of the tube member and is fixed to the vehicle body side, The gas stay is rotated in one direction with respect to the vehicle body side, and the gas stay is rotated in the other direction with respect to the vehicle body side when the hood is rotated in the closing direction. Formed and shaft A cylindrical member notch extending in the width direction and having a width direction length smaller than the diameter of the shaft member, and a radial length of the shaft member formed in a partial section in the circumferential direction of the shaft member. When the gas stay is further rotated from the closed position of the hood in the other direction, the cylindrical member notch reaches the section where the shaft member notch is formed. The cylindrical member is configured to be detached from the shaft member .

  According to the first aspect of the present invention, when an obstacle collides with the closed hood from above, the hood moves further downward from the closed state. At this time, the gas stay is detached from the vehicle body side by the separation mechanism.

  Therefore, when an obstacle collides with the hood from above, the gas stay does not stretch between the hood and the vehicle body side, and the impact can be efficiently absorbed by the entire structure by the outer panel, the hinge, and the like of the hood. That is, it is possible to achieve both the reduction of the burden of the hood opening work by the gas stay during normal use and the absorption of shock when the obstacle collides, which is extremely advantageous in practical use.

Further , the cylindrical member that is in sliding contact with the shaft member fixed on the vehicle body side rotates about the shaft member, so that the gas stay is allowed to rotate relative to the vehicle body side when the hood is opened and closed. During normal use where the hood is located between the closed state and the open state, the position of the cylindrical member notch relative to the shaft member changes due to the rotation of the cylindrical member formed on the gas stay, but the cylindrical member notch is not the axial member notch. It does not reach the section where is formed.

  Here, when an obstacle collides with the closed hood from above, an impact in the other direction is applied from the hood to the gas stay. As a result, the gas stay rotates further in the other direction from the closed position of the hood, the cylindrical member formed in the gas stay moves, and the cylindrical member notch reaches the section where the shaft member notch in the shaft member is formed.

  In the section where the shaft member notch is formed, the length of the shaft member in the radial direction is smaller than the length of the tube member notch in the width direction. Deviate from. Therefore, the cylindrical member can be removed from the shaft member with a simple configuration.

  Here, the structure which forms a cylindrical member notch in the vicinity of a gas stay main body is preferable. With such a configuration, the direction in which the cylindrical member is detached from the shaft member substantially coincides with the axial direction of the gas stay. Since the urging force of the gas stay acts on the cylinder member in the direction toward the vehicle body side, and the impact applied to the hood acts in the direction of pressing the gas stay against the vehicle body side, the cylinder member has its axial direction from the gas stay. The force acts, and the cylindrical member can be more accurately removed from the shaft member.

In the invention described in claim 2, in the hood support structure according to claim 1, wherein the releasing mechanism is inserted through the tubular member notch between the closed position and the open position of the hood is provided on the shaft member protruding And when the gas stay is further rotated from the closed position of the hood in the other direction, the protruding portion of the shaft member and the peripheral edge of the cylindrical member notch in the cylindrical member interfere with each other. And

According to the second aspect of the present invention, in addition to the operation of the first aspect, the tube member is moved to the shaft member following the rotation of the gas stay during normal use where the hood is located between the closed state and the open state. However, the protruding portion of the shaft member is always located inside the cylindrical member notch, and does not hinder the sliding of the shaft member and the cylindrical member.

  When an obstacle collides with the closed hood from above, an impact in the other direction is applied from the hood to the gas stay. As a result, the gas stay rotates further in the other direction from the closed position of the hood, the cylindrical member formed on the gas stay moves, and the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch in the cylindrical member.

  When the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch, rotation of the cylindrical member relative to the shaft member is prevented. As a result, the force received from the projecting portion acts on one end side in the circumferential direction of the tubular member notch in the tubular member, and the force received from the gas stay acts on the other circumferential end side so that the tubular member notch expands in the circumferential direction. Transforms into As a result, the cylindrical member can be more reliably removed from the shaft member, and the impact can be absorbed more efficiently. In addition, since the attitude of the gas stay to be removed from the vehicle body side is accurately determined, the behavior of each part when an obstacle collides can be accurately grasped, which is extremely advantageous in designing the vehicle body frame and each part.

According to a third aspect of the present invention, there is provided a hood support comprising: a hinge that rotatably connects the vehicle body side and the hood; and a gas stay that has both ends supported on the vehicle body side and the hood side and urges the hood in the opening direction. In the structure, when the hood is moved further downward from the closed position, a substantially cylindrical formed at the vehicle body side end portion of the gas stay is provided, and a detaching mechanism is provided to detach the vehicle body side end portion of the gas stay from the vehicle body side When the hood is rotated in the opening direction by sliding between the cylindrical member and the substantially cylindrical shaft member that is in sliding contact with the inner surface of the cylindrical member and is fixed to the vehicle body side, the gas stay moves relative to the vehicle body side. When the hood rotates in one direction and the hood rotates in the closing direction, the gas stay is configured to rotate in the other direction with respect to the vehicle body side. The detachment mechanism is formed on the cylindrical member and extends in the axial direction. Extend and wide A cylindrical member notch whose length is smaller than the diameter of the shaft member, and a projecting portion that is provided in the shaft member and passes through the cylindrical member notch between the closed position and the open position of the hood, When the hood is further rotated in the other direction from the closed position of the hood, the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch in the cylindrical member, so that the cylindrical member is detached from the axial member. It is characterized by that.

According to the third aspect of the present invention, the cylinder member that is in sliding contact with the shaft member fixed to the vehicle body side rotates about the shaft member, thereby allowing the gas stay to rotate with respect to the vehicle body side when the hood is opened and closed. The Here, during normal use where the hood is located between the closed state and the open state, the cylindrical member moves relative to the shaft member following the rotation of the gas stay, but the protruding portion of the shaft member is always notched in the cylindrical member. The sliding of the shaft member and the cylindrical member is not hindered.

  When an obstacle collides with the closed hood from above, an impact in the other direction is applied from the hood to the gas stay. As a result, the gas stay rotates further in the other direction from the closed position of the hood, the cylindrical member formed on the gas stay moves, and the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch in the cylindrical member.

  When the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch, rotation of the cylindrical member relative to the shaft member is prevented. As a result, a force received from the projecting portion acts on one end side in the circumferential direction of the tubular member notch in the tubular member, and a force received from the gas stay acts on the other circumferential end side, so that the tubular member notch expands in the circumferential direction. Transforms into

  Thereby, a cylinder member can be reliably extracted from a shaft member, and an impact can be absorbed efficiently. In addition, since the attitude of the gas stay to be removed from the vehicle body side is accurately determined, the behavior of each part when an obstacle collides can be accurately grasped, which is extremely advantageous in designing the vehicle body frame and each part.

  Here, the structure which forms a cylindrical member notch in the vicinity of a gas stay main body is preferable. With such a configuration, the direction in which the cylindrical member is detached from the shaft member substantially coincides with the axial direction of the gas stay. Since the urging force of the gas stay acts on the cylinder member in the direction toward the vehicle body side, and the impact applied to the hood acts in the direction of pressing the gas stay against the vehicle body side, the cylinder member has its axial direction from the gas stay. The force acts, and the cylindrical member can be more accurately removed from the shaft member.

The invention according to claim 4, in the hood support structure according to any one of claims 1 to 3, a virtual line extending in the axial direction from the gas stay is the cylindrical member notch from the axial center of the shaft member It is configured to be offset to the opposite side.

According to the invention described in claim 4 , in addition to the action of any one of claims 1 to 3 , the force from the gas stay is applied to the cylinder member so as to deviate from the center of the shaft member. The cylindrical member notch is positioned on an imaginary line parallel to the force action line, and the cylindrical member is easily detached from the shaft member.

  Thus, according to the hood support structure of the present invention, even when a gas stay is used, an impact can be effectively absorbed when an obstacle collides with the hood.

  1 to 5 show an embodiment of the present invention. FIG. 1 is an explanatory side view of an automobile when the hood is closed, and FIG. 2 is an explanatory side view of the automobile when the hood is open. 3 is an external perspective view of the hood support structure, FIG. 4 is a longitudinal sectional view of the hood support structure, and FIG. 5 is an explanatory side view of the automobile vehicle in a state where an obstacle collides with the hood.

  As shown in FIG. 1, this hood support structure supports a hood 1 that opens and closes an engine room of an automobile vehicle of a front engine vehicle on the body frame 2 side. The hood support structure includes a hinge 3 that rotatably connects the body frame 2 and the rear end of the hood 1. The hood support structure includes a gas stay 4 that is interposed between the vehicle body frame 2 and the hood 1 and biases the hood 1 in the opening direction. At the front end of the hood 1, there is provided a striker 7 that can be freely engaged and disengaged with a latch 6 installed on a cross member 5 of the vehicle body. Thereby, the hood 1 rotates around the rear end side, and when the latch 6 and the striker 7 are disengaged in the closed state, the hood 1 is moved by the urging force of the gas stay 4 until the hood 1 is opened. Further, the hood 1 in the open state is moved until the worker becomes a closed state by applying a downward force to the front end side, and the latch 6 and the striker 7 are engaged and locked to the vehicle body side.

  In the present embodiment, as shown in FIG. 1, the hinge 3 includes a substantially L-shaped vehicle body side member 3a and a substantially L-shaped hood side member 3b that is rotatably connected to the vehicle body side member 3a. The vehicle body side member 3a has a front / rear extension portion fastened and fixed to the vehicle body frame 2 extending in the front / rear direction with bolts and the like, and a vertical extension portion extending upward from the rear end of the front / rear extension portion. Moreover, the hood side member 3b has a front-rear extension part fastened and fixed to the hood 1 with a bolt or the like, and a vertical extension part extending downward from the rear end of the front-rear extension part. And the vehicle body side member 3a and the hood side member 3b are made rotatable by connecting the end portions of the vertically extending portions of the vehicle body side member 3a and the hood side member 3b. As a result, as shown in FIG. Thus, the hood 1 rotates with respect to the vehicle body side.

  As shown in FIG. 1, the gas stay 4 is disposed so as to incline forward and both ends are supported on the body frame 2 side and the hood 1 side. In the present embodiment, the end portion of the gas stay 4 on the hood 1 side is rotatably attached to the front end of the front and rear extending portion of the hood side member 3 b in the hinge 3. As shown in FIG. 3, a substantially cylindrical housing 8 is formed at the end of the gas stay 4 on the vehicle body side. A cylindrical bolt 9 screwed with the vehicle body frame 2 is in sliding contact with the inner surface of the housing 8. A housing 8 as a cylindrical member and a cylindrical bolt 9 as a shaft member extend to the left and right and are installed in the upper part of the vehicle body near the wheel apron 10. In the present embodiment, as shown in FIG. 3, the cylindrical bolt 9 is formed thicker than the portion where the head portion is in sliding contact with the inner surface of the housing 8 in order to restrict the movement of the housing 8 to the left and right. Yes.

  As described above, when the hood 1 is rotated in the opening direction as shown in FIG. 2 by sliding between the substantially cylindrical housing 8 and the substantially columnar cylindrical bolt 9, the gas stay 4 is aligned with the vehicle body frame 2. When the hood 1 is rotated in the closing direction as shown in FIG. 1, the gas stay 4 is configured to rotate in the other direction with respect to the vehicle body frame 2.

  As shown in FIG. 3, a housing notch 11 extending in the axial direction and having a width direction length A smaller than the diameter of the cylindrical bolt 9 is formed in the vicinity of the gas stay main body of the housing 8. In addition, the width direction length A here is the length of the chord of the notch 11 in the housing section as shown in FIG. 4A, and is not the circumferential length in the housing section. In the present embodiment, the housing notch 11 is formed on the upper side of the housing 8. In the present embodiment, the gas stay 4 is configured such that the imaginary line extending in the axial direction substantially coincides with the axial center of the cylindrical bolt 9. For example, as shown in FIG. 6, the imaginary line extending in the axial direction of the gas stay 4 may be offset to the opposite side of the axial center of the cylindrical bolt 9 and the housing notch 11, that is, to the lower side.

  Further, as shown in FIG. 4A, the cylindrical bolt 9 includes a cylindrical bolt in a partial section in the circumferential direction so that the radial length B of the cylindrical bolt 9 is smaller than the width A of the housing notch 11. A bolt notch 12 is formed. This cylindrical bolt notch 12 is also formed in the axial direction, similarly to the housing notch 11. The cylindrical bolt notch 12 is formed at the lower rear side of the cylindrical bolt 9, and accordingly, the cylindrical bolt 9 is formed with an inclined surface 9 a that is lowered forward. In the present embodiment, as shown in FIG. 4A, the inclined surface 9a is formed in a straight line when viewed from the side. In the present embodiment, when the hood 1 moves further downward from the closed position, the detachment mechanism that detaches the vehicle body side end portion of the gas stay 4 from the vehicle body frame 2 includes the housing notch 11 and the cylindrical bolt notch 12. .

  4A and 4B, the positional relationship between the notches 11 and 12 is such that the housing notch 11 of the housing 8 is a cylindrical bolt in the cylindrical bolt 9 between the closed position and the open position of the hood 1. The formation section of the notch 12 is not reached. As shown in FIG. 5, when the gas stay 4 rotates further in the other direction from the closed position of the hood 1, the housing notch 11 reaches the section where the cylindrical bolt notch 12 is formed as shown in FIG. Thus, the housing 8 is configured to be detached from the cylindrical bolt 9.

  As shown in FIGS. 4A and 4B, the cylindrical bolt 9 is provided with a protruding portion 13 that passes through the housing notch 11 between the closed position and the open position of the hood 1. As a result, when the gas stay 4 further rotates in the other direction from the closed position of the hood 1, the protrusion 13 of the cylindrical bolt 9 interferes with the peripheral edge of the housing notch 11 in the housing 8 as shown in FIG. It is supposed to be. In the present embodiment, the protruding portion 13 is formed in a plate shape extending in the radial direction of the cylindrical bolt 9. Further, since the housing notch 11 is formed on the upper side of the housing 8, the protrusion 13 is also formed on the upper side of the cylindrical bolt 9 correspondingly. In the present embodiment, the detachment mechanism has a protrusion 13 in addition to the housing notch 11 and the cylindrical bolt notch 12.

  According to the hood support structure configured as described above, the housing 8 that is in sliding contact with the cylindrical bolt 9 fixed to the vehicle body side rotates about the cylindrical bolt 9, so that the gas stay 4 is opened and closed when the hood 1 is opened and closed. Rotation with respect to the vehicle body is allowed. That is, as described above, during normal use in which the hood 1 is located between the closed state and the open state, the position of the housing notch 11 relative to the cylindrical bolt 9 changes due to the rotation of the housing 8 formed in the gas stay 4. The housing notch 11 does not reach the section where the cylindrical bolt notch 12 is formed (see FIGS. 4A and 4B). Although the housing 8 moves with respect to the cylindrical bolt 9 following the rotation of the gas stay 4, the protruding portion 13 of the cylindrical bolt 9 is always located inside the housing notch 11, and the sliding of the cylindrical bolt 9 and the housing 8 is made. There is no hindrance to the movement (see FIGS. 4A and 4B).

  Here, as shown in FIG. 5, when an obstacle collides with the closed hood 1 from above, an impact in the other direction is applied from the hood 1 to the gas stay 4. As a result, the gas stay 4 rotates further in the other direction from the closed position of the hood 1, the housing 8 formed in the gas stay 4 moves, and the housing notch 11 is formed in the column bolt notch 12 in the column bolt 9. (See FIG. 4C).

  In the section in which the cylindrical bolt notch 12 is formed, the radial length B of the cylindrical bolt 9 is smaller than the width length A of the housing notch 11, so that a force in a direction away from the cylindrical bolt 9 acts on the housing 8. The housing 8 is removed from the cylindrical bolt 9. Therefore, the housing 8 can be removed from the cylindrical bolt 9 with a simple configuration. Here, since the main body of the gas stay 4 is fixed in the vicinity of the housing notch 11, the direction of separation from the cylindrical bolt 9 in the housing 8 substantially coincides with the axial direction of the gas stay 4. The urging force of the gas stay 4 acts on the housing 8 in the direction toward the vehicle body side, and the impact applied to the hood 1 acts in the direction of pressing the gas stay 4 against the vehicle body side. The axial force acts from 4. As a result, when the obstacle collides with the hood 1, the housing 8 is pulled out from the cylindrical bolt 9 and the gas stay 4 is detached from the vehicle body side.

  Further, in the present embodiment, since the projecting portion 13 is formed on the cylindrical bolt 9, when an obstacle collides with the closed hood 1 from above, the gas stay 4 moves further in the other direction from the closed position of the hood 1. The housing 8 formed on the gas stay 4 moves and the projection 13 of the cylindrical bolt 9 interferes with the peripheral edge of the housing notch 11 in the housing 8.

  Thus, when the protrusion 13 of the cylindrical bolt 9 interferes with the peripheral edge of the housing notch 11, the rotation of the housing 8 relative to the cylindrical bolt 9 is prevented. As a result, as shown in FIG. 4C, the force received from the protruding portion 13 acts on one end side of the housing notch 11 in the housing 8 and the urging force received from the gas stay 4 on the other end side in the circumferential direction. By acting, the housing notch 11 is deformed in a direction extending in the circumferential direction, and the housing 8 can be more reliably removed from the cylindrical bolt 9.

  As described above, according to the hood support structure of the present embodiment, when the obstacle collides with the hood 1 from above, the gas stay 4 is detached from the vehicle body side. The outer structure of the hood 1, the hinge 3, and the like can absorb the impact efficiently throughout the entire structure. Therefore, even if a pedestrian collides with the hood 1, an injury value exerted on the pedestrian is drastically reduced as compared with the conventional structure. As described above, it is possible to achieve both the reduction of the burden of the work of opening the hood 1 by the gas stay 4 during normal use and the absorption of shock when the obstacle collides, which is extremely advantageous in practical use.

  In addition, according to the hood support structure of the present embodiment, when the obstacle collides with the hood 1, the protruding portion 13 of the cylindrical bolt 9 interferes with the peripheral edge of the housing notch 11, so that the cylindrical member is more reliably Can be removed from the shaft member, and the impact can be absorbed efficiently. Further, since the posture in which the gas stay 4 is detached from the vehicle body side is accurately determined, the behavior of each part when an obstacle collides can be accurately grasped, which is extremely advantageous in designing the vehicle body frame 2 and each part.

  In the above-described embodiment, the gas stay 4 is disposed in the forwardly lowered posture and interposed between the hood 1 and the vehicle body frame 2, but the gas stay 4 is disposed in the rearwardly lowered posture as shown in FIG. It may be done. In this case, if the housing 8, the cylindrical bolt 9 and the like are formed upside down, the same effect as the above embodiment can be obtained.

  Moreover, in the said embodiment, although the temporary wire which extended the gas stay 4 to the axial direction showed what passes along the axial center of the cylindrical bolt 9, the virtual line extended to the axial direction is shown, for example in FIG. Alternatively, the cylindrical bolt 9 may be offset to the opposite side of the axial center of the cylindrical bolt 9 and the housing notch 11, that is, to the lower side. In this case, since the imaginary line extending in the axial direction from the gas stay 4 is configured to be offset from the axial center of the cylindrical bolt 9 to the side opposite to the housing notch 11, the force from the gas stay 4 is applied to the housing 8 on the cylindrical bolt. Thus, the housing notch 11 is positioned on a virtual line parallel to the line of action of force from the center of the cylindrical bolt 9 so that the housing 8 can be easily detached from the cylindrical bolt 9.

  Moreover, in the said embodiment, although the projection part 13 was provided in the cylindrical volt | bolt 9 and the thing made to interfere with the periphery of the housing notch 11 of the housing 8 at the time of the collision with the hood 1 of an obstacle was shown, for example, it shows in FIG. Thus, even if the protruding portion 13 is not provided, the gas stay 4 is dropped at the time of a collision, and the outer panel of the hood 1, the hinge 3, and the like can efficiently absorb the impact throughout the structure.

  Furthermore, in the above-described embodiment, the cylindrical bolt 9 is formed with the cylindrical bolt notch 12. However, for example, as shown in FIG. 8, the obstacle collides with the hood 1 without forming the cylindrical bolt notch 12. If the protruding portion 13 of the cylindrical bolt 9 sometimes interferes with the peripheral edge of the housing notch 11 of the housing 8, the housing 8 can be separated from the cylindrical bolt 9.

  In the above embodiment, the gas stay 4 is supported on the vehicle body frame 2 by the housing 8 and the cylindrical bolt 9, but the gas stay 4 is moved to the vehicle body side using a spherical bolt such as a so-called ball joint. Of course, it may be supported. Furthermore, although the thing using the cylindrical bolt 9 as a shaft member was shown, the rod etc. which were shape | molded integrally with the vehicle body frame 2 may be sufficient, the structure of the hinge 3, the shape of the cylindrical bolt notch 12, etc. Of course, the specific detailed structure can be changed as appropriate.

It is side surface explanatory drawing of the motor vehicle when the hood which shows one Embodiment of this invention is a obstruction | occlusion state. It is side surface explanatory drawing of a motor vehicle when a hood is an open state. It is an external appearance perspective view of a food support structure. It is the longitudinal cross-sectional view of a hood support structure, (a) is a figure showing when the hood is closed, (b) is a figure showing when the hood is in an open state, (c) is a hood It is the figure which showed the state which the obstacle collided with. It is side surface explanatory drawing of the motor vehicle in the state which the obstacle collided with the hood. It is a longitudinal cross-sectional view of the hood support structure which shows a modification. It is side surface explanatory drawing of the motor vehicle vehicle which shows a modification. It is a longitudinal cross-sectional view of the hood support structure which shows a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hood 2 Body frame 3 Hinge 4 Gas stay 8 Housing 9 Cylindrical bolt 11 Housing notch 12 Cylindrical bolt notch 13 Protruding part A Length of housing notch width B Length of cylindrical bolt in radial direction

Claims (4)

In a hood support structure provided with a hinge that rotatably connects the vehicle body side and the hood, and a gas stay that is supported on the vehicle body side and the hood side and urges the hood in the opening direction,
When the hood is moved further downward from the closed position, a detachment mechanism is provided for detaching the vehicle body side end of the gas stay from the vehicle body side,
The hood is opened by sliding between a substantially cylindrical tube member formed at the vehicle body side end of the gas stay and a substantially columnar shaft member that is in sliding contact with the inner surface of the tube member and fixed to the vehicle body side. The gas stay rotates in one direction with respect to the vehicle body side when rotating in the direction, and the gas stay rotates in the other direction with respect to the vehicle body side when the hood rotates in the closing direction;
The separation mechanism is
A cylindrical member notch formed on the cylindrical member, extending in the axial direction and having a widthwise length smaller than the diameter of the axial member;
A shaft member notch formed in a partial section in the circumferential direction of the shaft member, and having a radial length of the shaft member smaller than a width direction length of the cylindrical member notch,
When the gas stay rotates further in the other direction from the closed position of the hood, the cylindrical member notch reaches a section where the shaft member notch is formed, and the cylindrical member is configured to be detached from the shaft member. off over de support structure characterized. The detachment mechanism has a protrusion provided on the shaft member and inserted through the cylindrical member notch between a closed position and an open position of the hood,
2. The structure according to claim 1, wherein when the gas stay is further rotated in the other direction from the closed position of the hood, the protruding portion of the shaft member interferes with a peripheral edge of the cylindrical member notch in the cylindrical member. The hood support structure described in 1. In a hood support structure provided with a hinge that rotatably connects the vehicle body side and the hood, and a gas stay that is supported on the vehicle body side and the hood side and urges the hood in the opening direction,
When the hood is moved further downward from the closed position, a detachment mechanism is provided for detaching the vehicle body side end of the gas stay from the vehicle body side,
The hood is opened by sliding between a substantially cylindrical tube member formed at the vehicle body side end of the gas stay and a substantially columnar shaft member that is in sliding contact with the inner surface of the tube member and fixed to the vehicle body side. The gas stay rotates in one direction with respect to the vehicle body side when rotating in the direction, and the gas stay rotates in the other direction with respect to the vehicle body side when the hood rotates in the closing direction;
The separation mechanism is
A cylindrical member notch formed on the cylindrical member, extending in the axial direction and having a widthwise length smaller than the diameter of the axial member;
A projecting portion that is provided on the recording shaft member and passes through the tubular member notch between the closed position and the open position of the hood,
When the gas stay rotates further in the other direction from the closed position of the hood, the protruding portion of the shaft member interferes with the peripheral edge of the cylindrical member notch in the cylindrical member, and the cylindrical member is detached from the shaft member. off over de support structure characterized by being configured to. Virtual line extending from the gas stay in the axial direction, according to any one of claims 1 to 3, characterized by being configured to be offset on the opposite side of the cylindrical member notch from the axial center of the shaft member Hood support structure.

Images