JP2006290287A

JP2006290287A - Vehicular hood device

Info

Publication number: JP2006290287A
Application number: JP2005117136A
Authority: JP
Inventors: Makoto Takehara; 誠竹原
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2005-04-14
Filing date: 2005-04-14
Publication date: 2006-10-26

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular hood device capable of excellently opening/closing a hood member while effectively absorbing the impact force by ensuring the flapping force of the hood member. <P>SOLUTION: The vehicular hood device comprises a hood retaining means 22 which is formed in front of a cabin 10 of a vehicle 5, retains a rear end 21b of a hood member 21 to cover a room space part 1 having an upper open port from an upper part in an opening/closing manner with respect to the vehicle body 5, and displaces the rear end of the hood member upwardly by a link mechanism 25, a lift means 30 to upwardly urge the hood member with respect to the vehicle body, a lock means 43 which regulates the upward displacement of the rear end of the hood member in the lift means in a normal state and releases the regulation when detecting the collision or the possibility of the collision, and a damper means 60 which is expanded while opening/closing the hood member in a normal state to provide the damping force. When the collision or the possibility of the collision is detected, and the rear end of the hood member is displaced upwardly, the rate of expansion to the opening/closing degree of the damper means 60 is set to be smaller than that when the hood member is opened/closed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、フード部材を跳ね上げることにより、フード部材の変形ストロークを確保する車両用フード装置に関する。 The present invention relates to a vehicle hood apparatus that ensures a deformation stroke of a hood member by flipping up the hood member.

車両は、上部が開口するエンジンルームにエンジンが載置されるとともに、エンジンルームを覆うフード部材と、このフード部材を開く際にフード部材を持ち上げる持上機構とを備える車両用フード装置を備えている。持上機構は、例えばフード部材とエンジンルームの開口部とを連結してフード部材を開閉（起倒）可能に支持するリンク機構と、フード部材を上方へ付勢するリフトアップ手段を備えている。また、エンジンルームが前側にある車両では、前突などの衝突時にその衝突物により衝撃力がフード部材の上面から入力される場合がある。 The vehicle includes a vehicle hood device including an engine mounted in an engine room having an upper opening, a hood member that covers the engine room, and a lifting mechanism that lifts the hood member when the hood member is opened. Yes. The lifting mechanism includes, for example, a link mechanism that connects the hood member and the opening of the engine room to support the hood member so that the hood member can be opened and closed (tilted), and a lift-up unit that biases the hood member upward. . Further, in a vehicle having an engine room on the front side, an impact force may be input from the upper surface of the hood member due to the collision object during a collision such as a front collision.

しかし、フード部材の下にはエンジンやエンジンの各種補記類が配置されており、フード部材部材とエンジン等との隙間が狭いのでフード部材の変形ストロークを充分に確保することができず、フード部材に入力される衝撃力を充分に緩衝することが難しい。このため、フード部材に加わる衝撃力を効果的に緩衝することが求められている。 However, the engine and various supplementary notes for the engine are arranged under the hood member, and since the gap between the hood member member and the engine or the like is narrow, the deformation stroke of the hood member cannot be secured sufficiently, and the hood member It is difficult to sufficiently buffer the impact force input to the. For this reason, it is required to effectively buffer the impact force applied to the hood member.

そこで、フード部材に加わる衝撃力を効果的に緩衝するために、フード部材の後端側を所定量跳ね上げる跳ね上げ機構を備え、衝突などにより車体前端に衝撃力が入力されるとフード部材を跳ね上げることでフード部材とエンジン等との隙間を増大してフード部材の変形ストロークをより多く確保し、フード部材に加わる衝撃力を緩衝する構造が特許文献１で提案されている。 Therefore, in order to effectively buffer the impact force applied to the hood member, it is provided with a flip-up mechanism that flips the rear end side of the hood member by a predetermined amount, and when the impact force is input to the front end of the vehicle body due to a collision or the like, the hood member is Patent Document 1 proposes a structure in which a gap between the hood member and the engine or the like is increased by jumping up to secure a larger deformation stroke of the hood member and buffer an impact force applied to the hood member.

特開２００３−１８２５１０号公報JP 2003-182510 A

特許文献１においては、フード部材後端を跳ね上げる跳ね上げ機構とフード部材の前端側を持ち上げる持ち上げ機構とを共通のリンク機構と１つのリフトアップ手段で構成している。このような構造では、構成の簡素化を図ることはできるが、エンジンルームを開閉するためにフード部材を持ち上げる際の持上力と、衝撃力を緩衝するためにフード部材を跳ね上げる際の跳上力とがリフトアップ手段の設定によって決まってしまう。このため、フード持上時の開閉性を基準に付勢手段による持上力（付勢力）を設定すると、衝撃力の緩衝する際の跳上力（付勢力）が弱まり、跳上力を基準にリフトアップ手段による付勢力を設定するとフード部材を通常開閉する際の持上力が強くなってフード部材が急激に持ち上がってしまう場合や、付勢力が強すぎてフード部材の閉じる際に大きな力を要してしまい、フード開閉動作に支障を来たしてしまう。 In Patent Document 1, a flip-up mechanism that flips up the rear end of the hood member and a lift mechanism that lifts the front end side of the hood member are configured by a common link mechanism and one lift-up means. In such a structure, the configuration can be simplified, but the lifting force when lifting the hood member to open and close the engine room and the jumping force when raising the hood member to buffer the impact force The upper force is determined by the setting of the lift-up means. For this reason, if the lifting force (biasing force) by the biasing means is set based on the opening / closing characteristics when lifting the hood, the jumping force (biasing force) when the impact force is buffered will be weakened, and the jumping force will be the reference If the urging force by the lift-up means is set, the lifting force when the hood member is normally opened and closed becomes strong and the hood member lifts up suddenly, or the urging force is too strong to close the hood member. Will cause trouble in the hood opening and closing operation.

本発明は、フード部材の跳上力を確保して衝撃力を効果的に緩衝しながらフード部材の開閉動作も良好に行える車両用フード装置を提供することを、その目的とする。 An object of the present invention is to provide a hood device for a vehicle that secures a jumping force of the hood member and effectively cushions an impact force, and can also perform an opening / closing operation of the hood member satisfactorily.

上記目的を達成するため、本発明にかかる車両用フード装置では、車両のキャビン前方に形成され、上部開放口を有する室空間部を上部から塞ぐフード部材と、フード部材の後端部を車体に対して開閉自在に保持すると共に、リンク機構によりフード部材の後端部を上方へ変位可能に構成されたフード保持手段と、車体に対してフード部材を上方に付勢するリフト手段と、通常状態ではリフト手段におけるフード部材の後端部の上方変位を規制し、衝突または衝突可能性が検出された際に規制を解除するロック手段と、通常状態ではフード部材の開閉の際に伸縮して減衰力を付与するダンパー手段とを備え、衝突または衝突可能性が検出されてフード部材の後端部が上方へ変位する際に、フード部材の開閉時に比べてダンパー手段の開閉度合いに対する伸縮率が少なくなるようにしている。 In order to achieve the above object, in a vehicle hood apparatus according to the present invention, a hood member formed in front of a cabin of a vehicle and closing a chamber space having an upper opening from above, and a rear end portion of the hood member on the vehicle body A hood holding means configured to be able to be opened and closed with respect to the hood member and to be displaced upward by a link mechanism, a lift means for urging the hood member upward with respect to the vehicle body, and a normal state In the lift means, the upward displacement of the rear end of the hood member is restricted, and when the collision or the possibility of collision is detected, the lock means is released, and in the normal state, it is expanded and contracted when the hood member is opened and closed. Damper means for applying force, and when the collision or the possibility of collision is detected and the rear end of the hood member is displaced upward, the degree of opening and closing of the damper means is higher than when the hood member is opened and closed. Expansion ratio is set to be smaller for.

本発明にかかる車両用フード装置では、ダンパー手段とフード部材との連結位置を、フード保持手段と異なる位置としている。この異なる位置としては、フード保持手段よりも前方または後方となる位置が挙げられる。 In the vehicle hood apparatus according to the present invention, the connecting position of the damper means and the hood member is set to a position different from the hood holding means. Examples of the different positions include positions that are forward or rearward of the hood holding means.

本発明にかかる車両用フード装置において、リンク機構は、両端が回動自在に支持されフード部材と室空間部の開口縁との間に掛け渡され、車体前後方向に沿って配置される第１リンク部材と、第１リンク部材より短く形成され、その両端がフード部材と室空間部の開口縁との間に回動自在に掛け渡された第２リンク部材とを少なくとも有する構成とし、ロック手段を衝突または衝突可能性が検出された際に第２リンク部材をフード部材から離脱させるように構成している。 In the vehicular hood apparatus according to the present invention, the link mechanism includes a first link member that is rotatably supported at both ends, is spanned between the hood member and the opening edge of the chamber space portion, and is disposed along the longitudinal direction of the vehicle body. The lock member includes at least a link member and a second link member that is formed shorter than the first link member and whose both ends are rotatably spanned between the hood member and the opening edge of the chamber space. The second link member is configured to be detached from the hood member when a collision or collision possibility is detected.

リンク機構としては、第１リンク部材のフード部材側端部と第２リンク部材のフード部材側端部との間を回転自在に連結する中間リンク部材を備え、第２リンク部材のフード部材側端部がこの中間リンク部材とともにフード部材に対して脱着可能な支持部を介してフード部材に支持されるように構成し、ロック手段を、衝突または衝突可能性が検出された際に、上記支持部での支持を解除するように構成している。支持部は、中間リンク部材の第２リンク部材側端部とフード部材との間を脱着可能に支持する構成としている。 The link mechanism includes an intermediate link member that rotatably connects the hood member side end of the first link member and the hood member side end of the second link member, and the hood member side end of the second link member And the intermediate link member is supported by the hood member via a support portion that is detachable with respect to the hood member. When the collision means or the collision possibility is detected, the support portion It is configured to release the support at. The support part is configured to support the second link member side end of the intermediate link member and the hood member so as to be detachable.

支持部は、第２リンク部材のフード部材側一端と中間リンク部材とを支持する支持軸と、フード部材に設けられて支持軸を支持する支持軸受け部とを備え、支持軸が支持軸受け部に支持されることで第２リンク部材のフード部材側端部と中間リンク部材とが共にフード部材に支持された構成とし、ロック手段は、衝突または衝突可能性が検出された際に、支持軸をスライドさせることで、支持軸と支持軸受け部との支持を解除する支持軸スライド機構として構成している。 The support portion includes a support shaft that supports the one end of the second link member on the hood member side and the intermediate link member, and a support bearing portion that is provided on the hood member and supports the support shaft, and the support shaft serves as the support bearing portion. The hood member side end portion of the second link member and the intermediate link member are both supported by the hood member by being supported, and the locking means is configured to support the support shaft when a collision or collision possibility is detected. By making it slide, it is comprised as a support shaft slide mechanism which cancels | releases the support of a support shaft and a support bearing part.

本発明に係る車両用フード装置では、リフト手段がリンク機構内に設けられていることを更なる特徴としている。また、リフト手段がリンク機構の各支持点で形成される多角形の内角を広げる方向へ付勢するように配置されていることを特徴としている。 The vehicle hood apparatus according to the present invention is further characterized in that the lift means is provided in the link mechanism. Further, the lift means is arranged so as to urge in the direction of expanding the inner angle of the polygon formed at each support point of the link mechanism.

本発明にかかる車両用フード装置において、ダンパー手段は、その両端が回転自在に支持され、フード部材と室空間部の開口縁との間に掛け渡されていて、ダンパー手段の両端を結ぶ線と、第１リンク部材の両端を結ぶ線との交点（Ｘ）を、ダンパー手段の室空間部の開口縁との連結端よりも前方下方に仮想配置するとともに、第１リンク部材の両端を結ぶ線と第２リンク部材の両端を結ぶ線との交点（Ｙ）を第２リンク部材の室空間部の開口縁との連結端よりも後方上方に仮想配置したことを特徴としている。 In the vehicle hood apparatus according to the present invention, the damper means is rotatably supported at both ends thereof, spanned between the hood member and the opening edge of the chamber space portion, and a line connecting both ends of the damper means. The intersection (X) with the line connecting both ends of the first link member is virtually arranged forward and lower than the connection end with the opening edge of the chamber space portion of the damper means, and the line connecting both ends of the first link member And an intersection (Y) of a line connecting both ends of the second link member is virtually arranged rearward and upward from a connection end with the opening edge of the chamber space portion of the second link member.

本発明によれば、車両のキャビン前方に形成された上部開放口を有する室空間部を上部から塞ぐフード部材の後端部を車体に対して開閉自在に保持すると共に、リンク機構によりフード部材の後端部を上方へ変位可能に構成されたフード保持手段と、車体に対してフード部材を上方に付勢するリフト手段と、通常状態ではリフト手段におけるフード部材の後端部の上方変位を規制し衝突または衝突可能性が検出された際に規制を解除するロック手段と、通常状態ではフード部材の開閉の際に伸縮して減衰力を付与するダンパー手段とを備え、衝突または衝突可能性が検出されてフード部材の後端部が上方へ変位する際に、フード部材の開閉時に比べてダンパー手段の開閉度合いに対する伸縮率を少なくなるように構成したので、通常状態では、ダンパー手段の伸縮率が十分に機能してフード部材の開放速度が抑制され、衝突または衝突可能性が検出された際には極力早く後端部が跳ね上げるので、フード部材の跳上力を確保して衝撃力を効果的に緩衝しながらフード部材の開閉動作も良好に行える。 According to the present invention, the rear end portion of the hood member that closes the chamber space portion having the upper opening formed in front of the cabin of the vehicle from the upper portion is held openably and closably with respect to the vehicle body, and the hood member is opened by the link mechanism. A hood holding means configured to be able to displace the rear end portion upward, a lift means for urging the hood member upward with respect to the vehicle body, and restricting upward displacement of the rear end portion of the hood member in the lift means in a normal state And a locking means for releasing the regulation when a collision or a collision possibility is detected, and a damper means for expanding and contracting when a hood member is opened and closed in a normal state to provide a damping force. When the detected rear end of the hood member is displaced upward, the expansion / contraction ratio with respect to the degree of opening / closing of the damper means is reduced compared to when the hood member is opened / closed. The expansion / contraction rate of the damper means functions sufficiently to suppress the opening speed of the hood member, and when the collision or the possibility of collision is detected, the rear end jumps up as soon as possible, ensuring the hood member's jumping force Thus, the hood member can be opened and closed well while effectively buffering the impact force.

本発明によれば、ダンパー手段とフード部材との連結位置を、フード保持手段と異なる位置することで、フード部材を支える部分が複数箇所となり、連結位置あるいはフード保持手段による保持部を中心とした跳上げ時のフード部材の回動やブレが抑制されるため、衝突時において所望の状態を保持したままフード部材を跳ね上げることができ、良好な緩衝特性を得られる。 According to the present invention, the connecting position between the damper means and the hood member is located differently from the hood holding means, so that the portion supporting the hood member becomes a plurality of places, and the connection position or the holding portion by the hood holding means is the center. Since the rotation and blurring of the hood member at the time of jumping are suppressed, the hood member can be flipped up while maintaining a desired state at the time of collision, and a good buffering characteristic can be obtained.

本発明によれば、リンク機構が、両端が回動自在に支持されフード部材と室空間部の開口縁との間に掛け渡され、車体前後方向に沿って配置される第１リンク部材と、第１リンク部材より短く形成され、その両端がフード部材と室空間部の開口縁との間に回動自在に掛け渡された第２リンク部材とを有し、ロック手段が衝突または衝突可能性が検出された際に、第２リンク部材をフード部材から離脱させる構成としたので、構造を簡素化してリンク機構を設けるができ、コストを抑えることができる。 According to the present invention, the link mechanism includes a first link member that is rotatably supported at both ends, is spanned between the hood member and the opening edge of the chamber space, and is disposed along the longitudinal direction of the vehicle body. The second link member is formed shorter than the first link member, and both ends of the link member are rotatably spanned between the hood member and the opening edge of the chamber space portion. Since the second link member is detached from the hood member when the sway is detected, the structure can be simplified and the link mechanism can be provided, and the cost can be reduced.

リンク機構は、第１リンク部材のフード部材側端部と第２リンク部材のフード部材側端部との間を回転自在に連結する中間リンク部材を備え、第２リンク部材のフード部材側端部が中間リンク部材とともにフード部材に対して脱着可能な支持部を介してフード部材に支持され、ロック手段が衝突または衝突可能性が検出された際に、支持部での支持を解除するので、第１リンク部材と第２リンク部材はロックが解除されてフード部材が跳ね上げられても、通常のフード部材の開き時と同じような状態となり、容易に閉じ状態に戻すことができる。 The link mechanism includes an intermediate link member that rotatably connects the hood member side end of the first link member and the hood member side end of the second link member, and the hood member side end of the second link member Is supported by the hood member together with the intermediate link member via a support part that is detachable from the hood member, and when the locking means detects a collision or a collision possibility, the support part releases the support. Even if the first link member and the second link member are unlocked and the hood member is flipped up, the state becomes the same as when the normal hood member is opened, and can be easily returned to the closed state.

支持部は、中間リンク部材の第２リンク部材側端部とフード部材との間を脱着可能に支持するので、支持部を構成するスペースを広く取ることができ、組み付け人の作業性がよくなる。 Since the support portion detachably supports the second link member side end portion of the intermediate link member and the hood member, the space constituting the support portion can be widened, and the workability of the assembler is improved.

本発明によれば、支持部は、第２リンク部材のフード部材側一端と中間リンク部材とを支持する支持軸と、フード部材に設けられて支持軸を支持する支持軸受け部とを有して構成され、支持軸が支持軸受け部に支持されることで第２リンク部材のフード部材側端部と中間リンク部材とが共にフード部材に支持され、ロック手段が、衝突または衝突可能性が検出された際に、支持軸をスライドさせることで、支持軸と支持軸受け部との支持を解除する支持軸スライド機構であるので、第２リンク部材とフード部材、中間リンク部材とフード部材とを一本の支持軸を用いて支持でき、第２リンク部材と中間リンク部材との支持部を個別に設けなくて良く、部品点数の低減と省スペースかを図れる。
本発明によれば、リンク機構内にリフトアップ手段が設けられているので、省スペース化を図りながら構造の簡素化を図ることができる。 According to the present invention, the support portion includes a support shaft that supports the one end of the second link member on the hood member side and the intermediate link member, and a support bearing portion that is provided on the hood member and supports the support shaft. And the support shaft is supported by the support bearing portion so that the hood member side end portion of the second link member and the intermediate link member are both supported by the hood member, and the locking means detects a collision or a collision possibility. Since the support shaft slide mechanism releases the support between the support shaft and the support bearing portion by sliding the support shaft at the time, the second link member and the hood member, and the intermediate link member and the hood member It is possible to support the second link member and the intermediate link member separately by using the support shaft, and it is possible to reduce the number of parts and save space.
According to the present invention, since the lift-up means is provided in the link mechanism, the structure can be simplified while saving space.

本発明によれば、ダンパー手段の両端を回転自在に支持してフード部材と室空間部の開口縁との間に掛け渡し、このダンパー手段の両端を結ぶ線と、第１リンク部材の両端を結ぶ線との交点（Ｘ）を、ダンパー手段の室空間部の開口縁との連結端よりも前方下部に仮想配置するとともに、第１リンク部材の両端を結ぶ線と第２リンク部材の両端を結ぶ線との交点（Ｙ）を第２リンク部材の室空間部の開口縁との連結端よりも後方上方に仮想配置したので、ダンパー手段とフード部材の連結部よりもリンク部材とフード部材の連結部が上方位置となって、フード部材を前方に傾斜した状態で跳ね上げることができる。 According to the present invention, the both ends of the damper means are rotatably supported, spanned between the hood member and the opening edge of the chamber space portion, and the line connecting the both ends of the damper means and the both ends of the first link member are connected. The intersection (X) with the connecting line is virtually arranged at the lower front part of the connecting end with the opening edge of the chamber space portion of the damper means, and the line connecting both ends of the first link member and both ends of the second link member are arranged. Since the intersection (Y) with the connecting line is virtually arranged rearward and upper than the connection end with the opening edge of the chamber space portion of the second link member, the link member and the hood member are connected to each other more than the connection portion between the damper means and the hood member. The connecting portion is in the upper position, and the hood member can be flipped up in a state of being inclined forward.

（第１の実施形態）
本発明の第１の実施形態について図１から図６を用いて説明する。図１は、車両、例えば自動車の前側を示している。この自動車は、キャビン１０よりも前側にエンジン１１が載置される例えばＦＦ式の車両であって、エンジン１１が載置される室空間部としてのエンジンルーム１２を前側に備えている。自動車は、フロントサスペンションとして例えば、車幅方向両端にそれぞれストラット型サスペンション装置を備えている。エンジンルーム１２は、例えば車幅方向両端にストラット型サスペンション装置のストラットが収容されるストラットハウスパネル１３をそれぞれ備えている。これらストラットハウスパネル１３の開口緑部となる上端縁１３ａは、車幅方向に所定の幅を持って前後方向に沿って略水平とされている。 (First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows the front side of a vehicle, for example an automobile. This automobile is, for example, an FF type vehicle in which the engine 11 is placed on the front side of the cabin 10 and includes an engine room 12 as a chamber space on which the engine 11 is placed on the front side. The automobile includes, for example, strut suspension devices at both ends in the vehicle width direction as front suspensions. The engine room 12 includes, for example, strut house panels 13 in which struts of a strut type suspension device are accommodated at both ends in the vehicle width direction. The upper end edge 13a serving as an opening green portion of the strut house panel 13 has a predetermined width in the vehicle width direction and is substantially horizontal along the front-rear direction.

この自動車は車両用フード装置２０を備えている。車両用フード装置２０は、エンジンルーム１２を上側から覆うフード部材２１と、フード部材２１の車幅方向両端後側でフード部材２１と自動車の車体５側とを連結し、フード部材２１を車両前端側から時上方向に持ち上げるフード保持手段としての一対の持ち上げ機構２２と、車体５に対してフード部材２１を上方に付勢するリフト手段としてのコイルスプリング３０と、通常状態ではコイルスプリング３０におけるフード部材２１の後端部２１ｂの上方変位を規制して、衝突または衝突可能性が検出された際に規制を解除するロック手段を構成するソレノイド装置４３と、通常状態では、フード部材２１の開閉の際に伸縮して減衰力を付与するダンパー手段としてのガススプリング６０とを備えている。 This automobile includes a vehicle hood device 20. The vehicle hood device 20 connects the hood member 21 that covers the engine room 12 from above, the hood member 21 and the vehicle body 5 side of the hood member 21 at both vehicle width direction rear ends, and connects the hood member 21 to the front end of the vehicle. A pair of lifting mechanisms 22 as hood holding means for lifting upward from the side, a coil spring 30 as lifting means for biasing the hood member 21 upward with respect to the vehicle body 5, and a hood in the coil spring 30 in a normal state A solenoid device 43 that constitutes a locking means for restricting upward displacement of the rear end portion 21b of the member 21 and releasing the restriction when a collision or a collision possibility is detected, and in a normal state, the hood member 21 is opened and closed. A gas spring 60 is provided as a damper means that expands and contracts to provide a damping force.

フード部材２１は、その前端部２１ａの中央に車体５側と係合するためにストライカ２３を備えている。車体５側には、ストライカ２３と係合するラッチ２４を備えている。これによりフード部材２１が閉められている状態では、ストライカ２３とラッチ２４とが係合してフード部材２１の前端部２１ａを車体５側に固定するように構成されている。本形態において、ストライカ２３は、図３（ａ），図３（ｂ）に示すように、ラッチ２４に対して車両前後方向に寸法Ｌ分移動可能とされている。 The hood member 21 includes a striker 23 at the center of the front end portion 21a for engaging with the vehicle body 5 side. A latch 24 that engages with the striker 23 is provided on the vehicle body 5 side. Thus, when the hood member 21 is closed, the striker 23 and the latch 24 are engaged to fix the front end portion 21a of the hood member 21 to the vehicle body 5 side. In this embodiment, as shown in FIGS. 3A and 3B, the striker 23 is movable by a dimension L in the vehicle front-rear direction with respect to the latch 24.

図２は、フード部材２１が閉められた状態において、車体５の左側に配置される持ち上げ機構２２と、それに関連する構成を上から見た状態を表している。持ち上げ機構２２は、車体５の左右でそれぞれ略対象に設けられているので、以下に車体５の左例の持ち上げ機構２２を代表して説明する。 FIG. 2 shows a state in which the lifting mechanism 22 disposed on the left side of the vehicle body 5 and the related configuration are viewed from above in a state where the hood member 21 is closed. Since the lifting mechanism 22 is provided substantially on the left and right sides of the vehicle body 5, the lifting mechanism 22 of the left example of the vehicle body 5 will be described below as a representative.

持ち上げ機構２２は、フード部材２１と車体５側、例えばエンジンルーム１２のストラットハウスパネル１３の上端縁１３ａとを連結して起倒可能なリンク機構２５を備えている。リンク機構２５は、ストラットハウスパネル１３の上端縁１３ａに固定される車両側固定部材３１と、フード部材２１に固定されるフード側固定部材３２と、車両側固定部材３１とフード側固定部材３２との間に前後方向に沿って掛け渡される第１リンク部材３３および第２リンク部材３４とを備えて起倒可能に構成されている。 The lifting mechanism 22 includes a link mechanism 25 that can be tilted by connecting the hood member 21 and the vehicle body 5 side, for example, the upper end edge 13a of the strut house panel 13 of the engine room 12. The link mechanism 25 includes a vehicle side fixing member 31 fixed to the upper end edge 13a of the strut house panel 13, a hood side fixing member 32 fixed to the hood member 21, a vehicle side fixing member 31, and a hood side fixing member 32. The first link member 33 and the second link member 34 that are stretched along the front-rear direction are provided so as to be able to rise and fall.

車両側固定部材３１は、ストラットハウスパネル１３の上端縁１３ａに沿って略前後方向に延びる例えば断面が略矩形の車両側アーム部３１ａを備えている。また、車両側アーム部３１ａの前端から略中央に掛けてストラットハウスパネル１３の上端縁１３ａに沿って車幅方向外側に広がる車両側フランジ３１ｂを備えている。車両側固定部材３１は、車両側アーム部３１ａと車両側フランジ３１ｂとがストラットハウスパネル１３の上端緑１３ａに、例えば図示しないボルトやナットを用いて締結固定されている。 The vehicle-side fixing member 31 includes a vehicle-side arm portion 31a having a substantially rectangular cross section, for example, extending in the front-rear direction along the upper end edge 13a of the strut house panel 13. In addition, a vehicle-side flange 31b is provided that extends from the front end of the vehicle-side arm portion 31a to substantially the center and extends outward in the vehicle width direction along the upper end edge 13a of the strut house panel 13. In the vehicle-side fixing member 31, a vehicle-side arm portion 31a and a vehicle-side flange 31b are fastened and fixed to the upper end green 13a of the strut house panel 13 using, for example, bolts and nuts (not shown).

フード側固定部材３２は、フード部材２１の内面に沿って略前後方向に延びる、断面が例えば略矩形のフード側アーム部３２ａを備えている。フード側アーム部３２ａの前端から略中央に掛けてフード部材２１の内面に沿って車幅方向内側に広がるフード側フランジ３２ｂを備えている。フード側固定部材３２は、フード側アーム部３２ａとフード側フランジ３２ｂとが、フード部材２１が閉められた状態において車両側固定部材３１と対向する位置から車幅方向内側によった位置に例えば図示しないボルトやナットを用いて締結されることで、図１に示すように、フード部材２１の後端部２１ｂ寄りに固定されている。 The hood-side fixing member 32 includes a hood-side arm portion 32a having a substantially rectangular cross section, for example, extending in the front-rear direction along the inner surface of the hood member 21. A hood-side flange 32b is provided that extends from the front end of the hood-side arm portion 32a to substantially the center and extends inward in the vehicle width direction along the inner surface of the hood member 21. The hood side fixing member 32 is, for example, illustrated at a position along the vehicle width direction from a position where the hood side arm portion 32a and the hood side flange 32b face the vehicle side fixing member 31 when the hood member 21 is closed. As shown in FIG. 1, it is fixed near the rear end 21 b of the hood member 21 by fastening with a bolt or nut that is not used.

第１リンク部材３３と第２リンク部材３４とは、車幅方向において車両側固定部材３１とフード側固定部材３２との間に位置しており、前後方向に沿って車両前端側に第１リンク部材３３が、車両後端側に第２リンク部材３４が位置している。第１リンク部材３３の車両側固定部材３１側の一端３３ａは、車両側固定部材３１の車両側アーム部３１ａの前側部３１ｃの車幅方向内面に回動自在に、例えばピン４０ａによってお互いに挿通されて支持されている。第２リンク部材３４の車両側固定部側の一端３４ａは、車両側固定部材３１の車両側アーム部３１ａの後側部分３１ｄの車幅方向内面に回動自在に、例えばピン４０によってお互いに挿通されて支持されている。 The first link member 33 and the second link member 34 are located between the vehicle-side fixing member 31 and the hood-side fixing member 32 in the vehicle width direction, and the first link on the vehicle front end side along the front-rear direction. The member 33 has the second link member 34 located on the vehicle rear end side. One end 33a of the first link member 33 on the vehicle side fixing member 31 side is rotatably inserted into the inner surface in the vehicle width direction of the front side portion 31c of the vehicle side arm portion 31a of the vehicle side fixing member 31, for example, by a pin 40a. Has been supported. The one end 34a of the second link member 34 on the vehicle side fixing portion side is rotatably inserted into the inner surface in the vehicle width direction of the rear portion 31d of the vehicle side arm portion 31a of the vehicle side fixing member 31, for example, by a pin 40. Has been supported.

第１リンク部材３３と第２リンク部材３４のそれぞれフード側固定部材３２側一端３３ｂ，３４ｂは、中間リンク部材４１に回動自在に支持されており、中間リンク部材４１がフード側固定部材３２に支持されることで、第１リンク部材３３と第２リンク部材３４とが車両側固定部材３１とフード側固定部材３２とに掛け渡されるようになっている。 The hood side fixing member 32 side one ends 33 b and 34 b of the first link member 33 and the second link member 34 are rotatably supported by the intermediate link member 41, and the intermediate link member 41 is supported by the hood side fixing member 32. By being supported, the first link member 33 and the second link member 34 are stretched over the vehicle side fixing member 31 and the hood side fixing member 32.

中間リンク部材４１は、例えば車幅方向に沿って第１リンク部材３３および第２リンク部材３４とフード側固定部材３２との間に位置している。第１リンク部材３３のフード側固定部材３２側の一端３３ｂは、中間リンク部材４１の前端４１ａの車幅方向外面に回動自在に、例えばピン４２によってお互いに挿通されることで支持されている。第２リンク部材３４のフード側固定部材３２側の一端３４ｂは、中間リンク部材４１の後側部４１ｂの車幅方向外面に回動自在に、例えばピン４０によってお互いに挿通されて支持されている。 The intermediate link member 41 is located between the first link member 33 and the second link member 34 and the hood side fixing member 32 along the vehicle width direction, for example. One end 33b of the first link member 33 on the hood side fixing member 32 side is supported by being inserted into each other by, for example, pins 42 so as to be rotatable on the outer surface in the vehicle width direction of the front end 41a of the intermediate link member 41. . One end 34b of the second link member 34 on the hood side fixing member 32 side is rotatably supported on the outer surface in the vehicle width direction of the rear side portion 41b of the intermediate link member 41, for example, inserted and supported by the pins 40. .

第２リンク部材３４は、第１リンク部材３３よりも短く形成されており、フード部材２１が全開になると、つまりリンク機構２５が起きた状態になると、フード部材２１が図３（ｃ）に示すように傾斜してエンジンルーム１２を見渡せるようになっている。第１リンク部材３３と第２リンク部材３４の長さと、車両側固定部材３１および中間リンク部材４１での第１リンク部材３３と第２リンク部材３４との支持端同士の間隔などは、エンジンルーム１２が充分に見渡せるようにそれぞれ調節されている。 The second link member 34 is formed shorter than the first link member 33. When the hood member 21 is fully opened, that is, when the link mechanism 25 is raised, the hood member 21 is shown in FIG. Thus, the engine room 12 can be looked over at an inclination. The length of the first link member 33 and the second link member 34 and the distance between the support ends of the first link member 33 and the second link member 34 in the vehicle side fixing member 31 and the intermediate link member 41 are determined in the engine room. Each 12 is adjusted so that it can be fully viewed.

中間リンク部材４１とフード側固定部材３２との支持構造を詳細に説明すると、中間リンク部材４１の前端４１ａは、ピン４２をフード側固定部材３２に向けて延長するとともに、該ピン４２をフード側固定部材３２のフード側アーム部３２ａに挿通することフード側固定部材３２に対して回動自在に支持されている。 The support structure of the intermediate link member 41 and the hood side fixing member 32 will be described in detail. The front end 41a of the intermediate link member 41 extends the pin 42 toward the hood side fixing member 32, and the pin 42 is connected to the hood side. The hood side arm 32 a of the fixing member 32 is inserted through the hood side fixing member 32 so that the hood side fixing member 32 is rotatably supported.

中間リンク部材４１の後端４１ｃは、フード側固定部材３２のフード側アーム部３２ａの後端３２ｄよりも後側で車幅方向内側に向かって屈曲する屈曲部４１ｄを備えている。フード側固定部材３２のフード側アーム部３２ａの後端３２ｄには、ソレノイド装置４３が屈曲部４１ｄと対向するように設けられている。 The rear end 41c of the intermediate link member 41 includes a bent portion 41d that bends inward in the vehicle width direction on the rear side of the rear end 32d of the hood side arm portion 32a of the hood side fixing member 32. A solenoid device 43 is provided at the rear end 32d of the hood side arm portion 32a of the hood side fixing member 32 so as to face the bent portion 41d.

ソレノイド装置４３は、前後方向にスライドし、支持軸を構成する軸部４３ａと、軸部４３ａをスライドさせる駆動部４３ｂとを備えている。屈曲部４１ｄは、ソレノイド装置４３の軸部４３ａを挿通可能な支持軸受け部となる挿通孔４４を備えている。このため、ソレノイド装置４３は、軸部４３ａが屈曲部４１ｄの挿通孔４４に挿通されることにより、フード側固定部材３２と中間リンク部材４１の屈曲部４１ｄとがお互いに支持されるように構成されている。さらに、図４に示すように、駆動部４３ｂが軸部４３ａを挿通孔４４から引き抜く方向にスライドさせると、フード側固定部材３２と中間リンク部材４１の屈曲部４１ｄとの支持が解除されるようになり、第２リンク部材３４のフード側固定部材３２側の一端３４ｂが中間リンク部材４１とともにフード側固定部材３２から離脱されるようになる。 The solenoid device 43 includes a shaft portion 43a that slides in the front-rear direction and forms a support shaft, and a drive portion 43b that slides the shaft portion 43a. The bent portion 41 d includes an insertion hole 44 serving as a support bearing portion through which the shaft portion 43 a of the solenoid device 43 can be inserted. Therefore, the solenoid device 43 is configured such that the hood side fixing member 32 and the bent portion 41d of the intermediate link member 41 are supported by each other when the shaft portion 43a is inserted into the insertion hole 44 of the bent portion 41d. Has been. Further, as shown in FIG. 4, when the drive portion 43 b slides the shaft portion 43 a in the direction of pulling out from the insertion hole 44, the support between the hood side fixing member 32 and the bent portion 41 d of the intermediate link member 41 is released. Thus, the one end 34 b of the second link member 34 on the hood side fixing member 32 side is detached from the hood side fixing member 32 together with the intermediate link member 41.

すなわち、屈曲部４１ｄの挿通孔４４とソレノイド装置４３の軸部４３ａとは、第２リンク部材３４のフード側固定部材３２側の一端３４ｂと中間リンク部材４１とを共にフード側固定部材３２に支持する支持部である。また、ソレノイド装置４３は、駆動部４３ｂがフード側固定部材３２と中間リンク部材４１の屈曲部４１ｄとの支持を解除する、すなわち支持軸をスライドさせることで、支持軸と支持軸受け部との支持を解除する支持軸スライド機構であり、第２リンク部材３４のフード側固定部材３２側の一端３４ｂを中間リンク部材４１とともにフード側固定部材３２から離脱させる離脱機能を備えることになる。このように、中間リンク部材４１は、前端４１ａと屈曲部４１ｄとがそれぞれフード側固定部材３２に支持されることにより、フード側固定部材３２に一体に支持される。 That is, the insertion hole 44 of the bent portion 41 d and the shaft portion 43 a of the solenoid device 43 support both the one end 34 b of the second link member 34 on the hood side fixing member 32 side and the intermediate link member 41 on the hood side fixing member 32. It is a support part to do. Further, in the solenoid device 43, the drive portion 43b releases the support between the hood side fixing member 32 and the bent portion 41d of the intermediate link member 41, that is, the support shaft and the support bearing portion are supported by sliding the support shaft. This is a support shaft slide mechanism for releasing the linking mechanism, and has a detaching function for separating the one end 34b of the second link member 34 on the hood side fixing member 32 side from the hood side fixing member 32 together with the intermediate link member 41. As described above, the intermediate link member 41 is supported integrally with the hood side fixing member 32 by the front end 41 a and the bent portion 41 d being supported by the hood side fixing member 32.

ガススプリング６０は、その上端６０ａがフード側アーム部３２aの前端側にピン３０３で連結され、その下端に向かって延びるロット部６０ｂの先端が車体側、例えばエンジンルーム１２側にピン３０４で結合されており、それぞれの端部が回動自在に支持されている。すなわち、ガススプリング６０とフード部材２１との連結位置は、リンク機構２５とフード部材２１との連結位置と異なる位置とされている。本形態では、第１リンク部材３３の端部３３ｂとフード側アーム部３２aとの連結位置となるピン４２よりもガススプリング６０の上端６０ａとフード側アーム部３２aとの連結位置となるピン３０３が前方側に配置されている。ガススプリング６０は、フード側アーム部３２aと車体５側とに回動可能に連結されることで、フード部材２１の開閉の際にロッド部３０ａが伸縮してフード部材２１の開閉動作に減衰力を付与している。 The upper end 60a of the gas spring 60 is connected to the front end side of the hood side arm portion 32a by a pin 303, and the tip of a lot portion 60b extending toward the lower end is connected to the vehicle body side, for example, the engine room 12 side by a pin 304. Each end is rotatably supported. That is, the coupling position between the gas spring 60 and the hood member 21 is different from the coupling position between the link mechanism 25 and the hood member 21. In this embodiment, the pin 303 that serves as a connection position between the upper end 60a of the gas spring 60 and the hood side arm 32a rather than the pin 42 that serves as a connection position between the end 33b of the first link member 33 and the hood side arm 32a. It is arranged on the front side. The gas spring 60 is rotatably connected to the hood side arm portion 32a and the vehicle body 5 side, so that the rod portion 30a expands and contracts when the hood member 21 is opened and closed, and a damping force is applied to the opening and closing operation of the hood member 21. Is granted.

コイルスプリング３０は、その下端３０ａがエンジンルーム１２側に、その上端３０ｂがフード側固定部材３２のフード側アーム部３２ａにそれぞれピン３０１，３０２を介してそれぞれ取り付けられている。ピン３０１は、ピン４０ａとピン４０ｂとの間に配置され、ピン３０２は、ピン４２とピン３０３の間で、かつピン３０１より車両前方側に配置されている。コイルスプリング３０は、例えば常にピン３０２に略上方に付勢する付勢力を与えている。 The coil spring 30 has a lower end 30a attached to the engine room 12 side and an upper end 30b attached to the hood side arm portion 32a of the hood side fixing member 32 via pins 301 and 302, respectively. The pin 301 is disposed between the pin 40a and the pin 40b, and the pin 302 is disposed between the pin 42 and the pin 303 and on the vehicle front side from the pin 301. For example, the coil spring 30 always applies a biasing force that biases the pin 302 substantially upward.

これにより、例えば乗員がストライカ２３とラッチ２４との係合を解除すると、コイルスプリング３０の付勢力（押上力）でフード部材２１が全開位置まで開くとともに、その上昇時にガススプリング６０によってコイルスプリング３０の付勢力（押上力）が減衰される。 Thus, for example, when the occupant releases the engagement between the striker 23 and the latch 24, the hood member 21 is opened to the fully open position by the urging force (pushing force) of the coil spring 30, and the coil spring 30 is moved by the gas spring 60 when the hood member 21 is raised. The urging force (push-up force) is attenuated.

上記構造により、リンク機構２５は、ストラットハウスパネル１３の上端緑１３ａとフード部材２１とを連結し、フード部材２１が閉められる状態では、図３（ａ）に示すように折畳まれ、フード部材２１を開く場合は、図３（ｃ）に示すように起き上がるようになっている。つまり、ソレノイド装置４３によりコイルスプリング３０によるフード部材２１の後端部２１ｂの上方変位が規制されている。 With the above structure, the link mechanism 25 connects the upper end green 13a of the strut house panel 13 and the hood member 21, and when the hood member 21 is closed, the link mechanism 25 is folded as shown in FIG. When 21 is opened, it gets up as shown in FIG. That is, upward displacement of the rear end portion 21 b of the hood member 21 by the coil spring 30 is restricted by the solenoid device 43.

本形態では、図３に示すように、ガススプリング６０の両端６０ａ，６０ｂを結ぶ線ａ１と、第１リンク部材３３の両端３３ａ，３３ｂを結ぶ線ａ２との交点（Ｘ）が、ガススプリング６０の室空間部の開口縁との連結端部となるピン３０４よりも車両前方下方に仮想配置するとともに、第１リンク部材３４の両端を結ぶ線ａ２と第２リンク部材３４の両端３４ａ、３４ｂを結ぶ線ａ３との交点（Ｙ）を、第２リンク部材３４の室空間部の開口縁との連結端部となるピン４０ｂよりも車両後方上方に仮想配置している。このため、フード部材２１の開閉度合いに対するガススプリング６０の伸縮率が、フード部材２１の後端部２１ｂが上方へ変位する跳上動作の際に、フード部材２１の前端２１ａ側を上方へ開閉する押上時に比べて小さく成るように設定されている。 In this embodiment, as shown in FIG. 3, an intersection (X) between a line a1 connecting both ends 60a and 60b of the gas spring 60 and a line a2 connecting both ends 33a and 33b of the first link member 33 is the gas spring 60. The pin a which is the connecting end portion with the opening edge of the chamber space portion is virtually arranged below the front of the vehicle, and a line a2 connecting both ends of the first link member 34 and both ends 34a and 34b of the second link member 34 are arranged. The intersection (Y) with the line a3 to be connected is virtually arranged above the rear side of the vehicle with respect to the pin 40b serving as a connecting end with the opening edge of the chamber space of the second link member 34. For this reason, the expansion / contraction ratio of the gas spring 60 with respect to the degree of opening and closing of the hood member 21 opens and closes the front end 21a side of the hood member 21 when the rear end portion 21b of the hood member 21 is displaced upward. It is set to be smaller than that at the time of pushing up.

一方、図１に示すように、車両用フード装置２０は、車体５の例えば前端に衝撃力検出センサ５１と、衝撃力検出センサ５１に接続されるＥＣＵ５２とを備えている。衝撃力検出センサ５１は、車体５の前端に衝撃力が入力されると、その衝撃力値を検出するとともに、その情報をＥＣＵ５２に伝える。ＥＣＵ５２は、コンピュータで構成されていて、ソレノイド装置４３の駆動部４３ｂが接続されており、車体５の前端に入力される衝撃力が所定値以上の場合は、図４に示すように駆動部４３ｂを駆動制御して、軸部４３ａをスライドさせて挿通孔４４から引抜き、屈曲部４１ｄとフード側固定部材３２との支持を解除するようになっている。 On the other hand, as shown in FIG. 1, the vehicle hood device 20 includes an impact force detection sensor 51 and an ECU 52 connected to the impact force detection sensor 51, for example, at the front end of the vehicle body 5. When an impact force is input to the front end of the vehicle body 5, the impact force detection sensor 51 detects the impact force value and transmits the information to the ECU 52. The ECU 52 is configured by a computer, and is connected to the drive unit 43b of the solenoid device 43. When the impact force input to the front end of the vehicle body 5 is a predetermined value or more, the drive unit 43b is shown in FIG. The shaft portion 43a is slid and pulled out from the insertion hole 44, and the support between the bent portion 41d and the hood side fixing member 32 is released.

図３に示すように、ガススプリング６０の両端６０ａ、６０ｂを結ぶ線ａ１と、第１リンク部材３３の両端３３ａ，３３ｂを結ぶ線ａ２との交点（Ｘ）を、ピン３０４よりも車両前方下方に仮想配置するとともに、第１リンク部材３４の両端を結ぶ線ａ２と第２リンク部材３４の両端３４ａ、３４ｂを結ぶ線ａ３との交点（Ｙ）を、第２リンク部材３４のピン４０ｂよりも車両後方上方に仮想配置し、さらにストライカ２３がラッチ２４に対して車両前後方向に寸法Ｌ分移動可能とされている。このため、衝突または衝突可能性が検出されてフード部材２１の後端部２１ｂが上方へ変位する際に、ピン４０がピン４１よりも高い位置（Ｈ＞ｈ）へ移動しようとする。また、屈曲部４１ｂとフード側固定部材３２との支持が解除されると、中間リンク部材４１とフード側固定部材３２との支持は、中間リンク部材４１の前端４１ａでの支持だけとなる。加えて、中間リンク部材４１の前端４１ａとフード側固定部材３２との支持は、お互いに回動自在になっている。このため、屈曲部４１ｄとフード側固定部材３２との支持が解除されると、フード部材２１は、図５に示すように、コイルスプリング３０の付勢力により上方に跳ね上げられるようになっている。 As shown in FIG. 3, an intersection (X) between a line a1 connecting both ends 60a and 60b of the gas spring 60 and a line a2 connecting both ends 33a and 33b of the first link member 33 is lower than the pin 304 in the front of the vehicle. And the intersection (Y) between the line a2 connecting both ends of the first link member 34 and the line a3 connecting both ends 34a, 34b of the second link member 34 is set to be more than the pin 40b of the second link member 34. It is virtually arranged in the rear upper part of the vehicle, and the striker 23 can move by a dimension L in the vehicle front-rear direction with respect to the latch 24. For this reason, when the collision or the collision possibility is detected and the rear end portion 21b of the hood member 21 is displaced upward, the pin 40 tends to move to a position (H> h) higher than the pin 41. Further, when the support of the bent portion 41 b and the hood side fixing member 32 is released, the support of the intermediate link member 41 and the hood side fixing member 32 is only the support at the front end 41 a of the intermediate link member 41. In addition, the support of the front end 41a of the intermediate link member 41 and the hood side fixing member 32 is rotatable with respect to each other. For this reason, when the support of the bent portion 41d and the hood side fixing member 32 is released, the hood member 21 is flipped upward by the urging force of the coil spring 30 as shown in FIG. .

このとき、第１リンク部材３３は、フード側固定部材３にとともに跳ね上がり起きた状態となる。さらに、第２リンク部材３４は、中間リンク部材４１を介して第１リンク部材とに連結されているので、第１リンク部材３３とともに起きた状態となり、リンク機構２５は起きた状態となる。 At this time, the first link member 33 jumps up and rises with the hood side fixing member 3. Furthermore, since the 2nd link member 34 is connected with the 1st link member via the intermediate link member 41, it will be in the state which arose with the 1st link member 33, and the link mechanism 25 will be in the state which arose.

すなわち、自動車が走行中に、例えば障害物と衝突する等して車体５の前端から衝撃力が入力されると、衝撃力検出センサ５１が衝撃力値を検出し、その情報がＥＣＵ５２に伝えられる。衝撃力が所定値以上であると、ＥＣＵ５２の制御により駆動部４３ｂが図４に示すように軸部４３ａを挿通孔４４から引抜き、中間リンク部材４１の屈曲部４１ｄとフード側固定部材３２との支持を解除する。 That is, when an impact force is input from the front end of the vehicle body 5 while the vehicle is traveling, for example, by colliding with an obstacle, the impact force detection sensor 51 detects the impact force value, and the information is transmitted to the ECU 52. . When the impact force is equal to or greater than a predetermined value, the drive portion 43b pulls out the shaft portion 43a from the insertion hole 44 as shown in FIG. 4 under the control of the ECU 52, and the bent portion 41d of the intermediate link member 41 and the hood side fixing member 32 Release support.

次いで、図５に示すように、コイルスプリング３０の付勢力によってフード部材２１が跳ね上げられてエンジン１１とフード部材２１との距離が広がる。このため、図６（ａ）に示すように、衝突によって障害物がフード部材２１の上面に倒れ込むなどしてフード部材２１の上面から衝撃力が入力されても、フード部材２１の変形ストロークが増加しているので衝撃力を充分吸収することができる。また、ダンパー手段６０が伸縮可能であるので、図６（ｂ）に示すようにリンク機構２５にも弾性力をもたせることができ、コイルスプリング３０の付勢力とともに衝撃力を吸収する。このため、フード部材２１に入力される衝撃力は効果的に吸収される。図６（ａ）の２点鎖線は衝撃力吸収後のフード部材２１を示し、図６（ｂ）の点線は衝撃力吸収後のダンパー手段６０、リンク機構２５及びリフトアップ手段３０の状態を示す。 Next, as shown in FIG. 5, the hood member 21 is flipped up by the urging force of the coil spring 30 to increase the distance between the engine 11 and the hood member 21. For this reason, as shown in FIG. 6A, even if an impact force is input from the upper surface of the hood member 21 due to an obstacle falling into the upper surface of the hood member 21 due to a collision, the deformation stroke of the hood member 21 increases. Therefore, the impact force can be absorbed sufficiently. Further, since the damper means 60 can be expanded and contracted, the link mechanism 25 can be given an elastic force as shown in FIG. 6B, and the impact force is absorbed together with the urging force of the coil spring 30. For this reason, the impact force input to the hood member 21 is effectively absorbed. 6A shows the hood member 21 after absorbing the impact force, and the dotted line in FIG. 6B shows the state of the damper means 60, the link mechanism 25 and the lift-up means 30 after absorbing the impact force. .

上記構成の車両用フード装置２０によれば、車体５の前端に所定値以上の衝撃力が入力されると、フード側固定部材３２と屈曲部４１ｄとの支持を解除するだけでフード部材２１が跳ね上げられてフード部材２１の変形ストロークが増加し、フード部材２１に入力される衝撃力をフード部材２１の変形とコイルスプリング３０の付勢力によって効果的に緩衝することができる。 According to the vehicle hood device 20 having the above configuration, when an impact force of a predetermined value or more is input to the front end of the vehicle body 5, the hood member 21 is simply released from the support of the hood side fixing member 32 and the bent portion 41d. The deformation stroke of the hood member 21 is increased, and the impact force input to the hood member 21 can be effectively buffered by the deformation of the hood member 21 and the biasing force of the coil spring 30.

リンク機構２５は、第１リンク部材３３と第２リンク部材３４とが中間リンク部材４１を介して連結される構造の採用により、フード部材２１が跳ね上げられると起きた状態になる。このため、フード部材２１が跳ね上げられた後にフード部材２１を全開させるだけで、容易にフード部材２１の跳ね上げ状態を解除することができる。この解除動作により、フード部材２１は、その後端部２１ｂを回動中心として全開位置へと上昇するが、この際、ガススプリング６０の開閉度合いに対する伸縮率が十分に機能するので、コイルスプリング３０の付勢力を跳上力が高くなるように強く設定した場合でも、フード部材２１の開放速度が抑制されるので、フード部材２１の急激な上昇を防止できる。 The link mechanism 25 is in a state where the first link member 33 and the second link member 34 are connected to each other via the intermediate link member 41 and is caused when the hood member 21 is flipped up. For this reason, the hood member 21 can be easily lifted up simply by fully opening the hood member 21 after the hood member 21 is flipped up. By this releasing operation, the hood member 21 rises to the fully open position with the rear end portion 21b as the center of rotation. At this time, the expansion / contraction ratio with respect to the degree of opening and closing of the gas spring 60 functions sufficiently. Even when the urging force is set so as to increase the jumping force, the opening speed of the hood member 21 is suppressed, so that the hood member 21 can be prevented from rapidly rising.

中間リンク部材４１は、前端４１ａと、後端４１ｃに設けられる屈曲部４１ｄとでフード側固定部材３２に支持されている。このため、フード側固定部材３２が中間リンク部材４１の前端４１ａを支点として中間リンク部材４１と相対的に回動しようとする時のソレノイド装置４３の軸部４３ａと挿通孔４４との間にかかる押し付け力が小さくなるので、軸部４３ａを少ない力でスライドさせることができる。すなわち、駆動部４３ｂを大掛かりなものにすることがなくなる。また、ソレノイド装置４３をフード側固定部材３２のフード側アーム部３２ａの後端３２ｄに、挿通孔４４を屈曲部４１ｄに設けることにより、それぞれが比較的スペースのある箇所に設けられるようになるので、ソレノイド装置４３を容易に配置するとともに挿通孔４４を容易に設けることができる。 The intermediate link member 41 is supported by the hood side fixing member 32 by a front end 41a and a bent portion 41d provided at the rear end 41c. Therefore, the hood-side fixing member 32 is interposed between the shaft portion 43a of the solenoid device 43 and the insertion hole 44 when the hood-side fixing member 32 tries to rotate relative to the intermediate link member 41 with the front end 41a of the intermediate link member 41 as a fulcrum. Since the pressing force becomes small, the shaft portion 43a can be slid with a small force. That is, the driving unit 43b is not made large. Further, by providing the solenoid device 43 at the rear end 32d of the hood-side arm portion 32a of the hood-side fixing member 32 and the insertion hole 44 at the bent portion 41d, each can be provided at a location with a relatively large space. The solenoid device 43 can be easily arranged and the insertion hole 44 can be easily provided.

一方、衝撃力検出センサ５１が衝撃力値を検出しない状態、車両停止状態であって図３（ａ）に示すようにフード部材２１の閉状態からラッチ２４とストライカ２３との係合を解除する。このとき、屈曲部４１ｂとフード側固定部材３２との支持は解除されていないため、中間リンク部材４１とフード側固定部材３２との支持が、中間リンク部材４１の前端４１ａと後端４１ｂの双方での支持となる。また、リンク機構２５は、第１リンク部材３３と第２リンク部材３４とが中間リンク部材４１を介して連結される構造の採用により起きた状態になる。このため、フード部材２１は後端部２１ｂを回動中心として全開位置へと上昇し、その上昇が進む程ガススプリング６０のロット部３０ａが十分に延びるので、コイルスプリング３０の付勢力を跳上力が高くなるように強く設定した場合でも、フード部材２１の開放速度を抑制することができ、フード部材２１の急激な上昇を防止できる。 On the other hand, the engagement of the latch 24 and the striker 23 is released from the closed state of the hood member 21 as shown in FIG. . At this time, since the support of the bent portion 41b and the hood side fixing member 32 is not released, the support of the intermediate link member 41 and the hood side fixing member 32 is supported by both the front end 41a and the rear end 41b of the intermediate link member 41. It becomes support in. Moreover, the link mechanism 25 will be in the state which arose by adoption of the structure where the 1st link member 33 and the 2nd link member 34 are connected via the intermediate link member 41. FIG. Therefore, the hood member 21 rises to the fully open position with the rear end portion 21b as the center of rotation, and the lot portion 30a of the gas spring 60 sufficiently extends as the rise proceeds, so that the urging force of the coil spring 30 jumps up. Even when the force is set so as to increase, the opening speed of the hood member 21 can be suppressed, and a rapid rise of the hood member 21 can be prevented.

本形態では、中間リンク部材４１に挿通孔４４を設けているが、これに限定されるものではなく、例えば、フード側固定部材３２に屈曲部４１ｄに対向する屈曲部を設けて、そこに挿通孔４４を形成し、中間リンク部材４１の屈曲部４１ｄにソレノイド装置４３を備えるようにしてもよい。また、屈曲部４１ｄとフード側固定部材３２との支持には、ソレノイド装置４３が用いられているが、これに限定されるものではない。
（第２の実施形態）
本発明の第２の実施形態に係る車両用フード装置２０の中間リンク部材４１とフード側固定部材３２との支持について、図７，図８を用いて説明する。第１の実施形態と同様な機能を有する構成部材については、同実施形態と同一符号を付し、詳細な説明は省略する。図７は、フード部材２１が閉められた状態おいて、車体５の左側に配置される第２の実施形態の持ち上げ機構２２を上から見た状態を示している。中間リンク部材４１の前端４１ａとフード側固定部材３２との支持構造は、第１の実施形態と同じあるのでここでの説明を省略する。 In this embodiment, the insertion hole 44 is provided in the intermediate link member 41. However, the present invention is not limited to this. For example, the hood-side fixing member 32 is provided with a bent portion that faces the bent portion 41d and is inserted therethrough. A hole 44 may be formed, and the bent portion 41 d of the intermediate link member 41 may be provided with a solenoid device 43. Moreover, although the solenoid apparatus 43 is used for the support of the bending part 41d and the hood side fixing member 32, it is not limited to this.
(Second Embodiment)
The support of the intermediate link member 41 and the hood side fixing member 32 of the vehicle hood apparatus 20 according to the second embodiment of the present invention will be described with reference to FIGS. Constituent members having the same functions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and detailed description thereof is omitted. FIG. 7 shows a state in which the lifting mechanism 22 according to the second embodiment disposed on the left side of the vehicle body 5 is viewed from above with the hood member 21 closed. Since the support structure of the front end 41a of the intermediate link member 41 and the hood-side fixing member 32 is the same as that of the first embodiment, the description thereof is omitted here.

図８は、中間リンク部材４１の後端４１ｃの近傍を拡大して示している。第２リンク部材３４のフード側固定部材３２側の一端３４ｂは、車幅方向外面にソレノイド装置４３を備えている。フード側固定部材３２のフード側アーム部３２ａの後端３２ｄには、挿通孔４４が設けられており、第２リンク部材３４のフード側固定部材３２側の一端３４ｂから中間リンク部材４１の後端４１ｃを通してフード側固定部材３２の挿通孔４４までは、軸部４３ａが挿通されることでそれぞれ回動自在に支持されている。軸部４３ａは、フード側固定部材３２のフード側アーム部３２ａに挿通される部分が他の部分より太い大径部５５に形成されている。 FIG. 8 is an enlarged view of the vicinity of the rear end 41 c of the intermediate link member 41. One end 34b of the second link member 34 on the hood side fixing member 32 side includes a solenoid device 43 on the outer surface in the vehicle width direction. An insertion hole 44 is provided in the rear end 32d of the hood side arm portion 32a of the hood side fixing member 32, and the rear end of the intermediate link member 41 extends from one end 34b on the hood side fixing member 32 side of the second link member 34. The shaft portion 43a is inserted into the insertion hole 44 of the hood side fixing member 32 through 41c, and is supported rotatably. The shaft portion 43a is formed in a large-diameter portion 55 where the portion inserted into the hood-side arm portion 32a of the hood-side fixing member 32 is thicker than the other portions.

中間リンク部材４１は、軸部４３ａの大径部５５が挿通可能な挿通孔５６が設けられていることにより、図８（ｂ）に示すように、ソレノイド装置４３の駆動部４３ｂが軸部４３ａを第２リンク部材３４側にスライドさせることにより、軸部４３ａの大径部５５が中間リンク部材４１の挿通孔５６に収容され、軸部４３ａとフード側固定部材３２との支持が解除されるようになる。 Since the intermediate link member 41 is provided with an insertion hole 56 through which the large-diameter portion 55 of the shaft portion 43a can be inserted, as shown in FIG. 8B, the drive portion 43b of the solenoid device 43 is connected to the shaft portion 43a. Is slid toward the second link member 34 so that the large-diameter portion 55 of the shaft portion 43a is accommodated in the insertion hole 56 of the intermediate link member 41, and the support between the shaft portion 43a and the hood side fixing member 32 is released. It becomes like this.

中間リンク部材４１の挿通孔５６の第２リンク部材３４側は、例えば軸部４３ａの基部５７と略同径にまで絞ってある絞り部５８となっている。このため、軸部４３ａの基部５７は、中間リンク部材４１では絞り部５８に支持されるので、中間リンク部材４１のガタツキを防止することができるとともに、軸部４３ａがスライドされることにより、中間リンク部材４１からも抜け出ることを防止している。 The second link member 34 side of the insertion hole 56 of the intermediate link member 41 is, for example, a narrowed portion 58 that is narrowed to substantially the same diameter as the base portion 57 of the shaft portion 43a. For this reason, since the base portion 57 of the shaft portion 43a is supported by the throttle portion 58 in the intermediate link member 41, it is possible to prevent the intermediate link member 41 from rattling, and when the shaft portion 43a is slid, It also prevents the link member 41 from coming out.

第２の実施形態では、中間リンク部材４１の後端４１ｃがフード側固定部材３２に支持されていることに加え、第２リンク部材３４からフード側固定部材３２のフード側アーム部３２ａまでを軸部４３ａで支持している。このため、第１の実施形態の効果に加えて、別途に第２リンク部材３４と中間リンク部材４１とをお互いに支持する支持部品または支持構造が不要となるので、部品点数の削減または構造を簡素化できる。さらに、中間リンク部材４１は、第１リンク部材３３と第２リンク部材３４とのそれぞれの支持点範囲内でフード側固定部材３２に支持されているので、リンク機構２５をコンパクトに構成することができる。
（第３の実施形態）
本発明の第３の実施形態に係る車両用フード装置２０は、リフト手段の配置場所を上記の形態に対して変更したものである。図９（ａ）に示すように、本形態においてリフト手段には、ねじりコイルスプリング３００を用いている。ねじりコイルスプリング３００は、その本体部がピン４２に巻装され、その一端３００ａをピン４０に、その他端３００ｂがフード側固定部材３２のフード側アーム部３２ａの後端３２ｄにそれぞれ係止されていて、フード部材２１を上方に付勢している。つまり、このねじりコイルスプリング３００はリンク機構２５内に設けられていて、リンク機構の各支持点で形成される多角形の内角を広げる方向へ付勢するように配置されている。 In the second embodiment, in addition to the rear end 41c of the intermediate link member 41 being supported by the hood side fixing member 32, the shaft from the second link member 34 to the hood side arm portion 32a of the hood side fixing member 32 is pivoted. It is supported by the portion 43a. For this reason, in addition to the effects of the first embodiment, there is no need for a separate support component or support structure for supporting the second link member 34 and the intermediate link member 41 with each other. It can be simplified. Furthermore, since the intermediate link member 41 is supported by the hood side fixing member 32 within the range of the support points of the first link member 33 and the second link member 34, the link mechanism 25 can be configured in a compact manner. it can.
(Third embodiment)
The vehicular hood apparatus 20 according to the third embodiment of the present invention is obtained by changing the arrangement place of the lift means with respect to the above embodiment. As shown in FIG. 9A, in this embodiment, a torsion coil spring 300 is used as the lift means. The main body of the torsion coil spring 300 is wound around the pin 42, and its one end 300a is locked to the pin 40 and the other end 300b is locked to the rear end 32d of the hood side arm portion 32a of the hood side fixing member 32. The hood member 21 is biased upward. That is, the torsion coil spring 300 is provided in the link mechanism 25 and is arranged so as to be urged in a direction in which the inner angle of the polygon formed by each support point of the link mechanism is widened.

このような構成によると、自動車が走行中に、例えば障害物と衝突する等して車体５の前端から衝撃力が入力され、衝撃力が所定値以上であると、ＥＣＵ５２の制御により駆動部４３ｂが軸部４３ａを挿通孔４４から引抜き、中間リンク部材４１の屈曲部４１ｄとフード側固定部材３２との支持が解除される。すると、ねじりコイルスプリング３００の付勢力によってフード部材２１が跳ね上げられてエンジン１１とフード部材２１との距離が広がる。このため、図９（ｂ）に示すように、衝突によって障害物がフード部材２１の上面に倒れ込むなどしてフード部材２１の上面から衝撃力が入力されても、フード部材２１の変形ストロークが増加しているので衝撃力を充分吸収することができるとともに、ねじりコイルスプリング３００の付勢力も衝撃力を吸収するので、フード部材２１に入力される衝撃力は効果的に吸収される。 According to such a configuration, when the automobile is traveling, for example, an impact force is input from the front end of the vehicle body 5 by colliding with an obstacle, and when the impact force exceeds a predetermined value, the drive unit 43b is controlled by the ECU 52. The shaft 43a is pulled out from the insertion hole 44, and the support of the bent portion 41d of the intermediate link member 41 and the hood side fixing member 32 is released. Then, the hood member 21 is flipped up by the urging force of the torsion coil spring 300, and the distance between the engine 11 and the hood member 21 is increased. For this reason, as shown in FIG. 9B, even if an impact force is input from the upper surface of the hood member 21 due to an obstacle falling into the upper surface of the hood member 21 due to a collision, the deformation stroke of the hood member 21 increases. Therefore, the impact force can be sufficiently absorbed, and the urging force of the torsion coil spring 300 also absorbs the impact force, so that the impact force input to the hood member 21 is effectively absorbed.

上記構成の車両用フード装置２０によれば、車体５の前端に所定値以上の衝撃力が入力されると、フード側固定部材３２と屈曲部４１ｄとの支持を解除するだけでフード部材２１が跳ね上げられてフード部材２１の変形ストロークが増加し、フード部材２１に入力される衝撃力をフード部材２１の変形とねじりコイルスプリング３００の付勢力によって効果的に緩衝することができる。また、リンク機構２５内にねじりコイルスプリング３００が設けられているので、省スペース化を図れ、より構造の簡素化を図ることができる。 According to the vehicle hood device 20 having the above configuration, when an impact force of a predetermined value or more is input to the front end of the vehicle body 5, the hood member 21 is simply released from the support of the hood side fixing member 32 and the bent portion 41d. As a result, the deformation stroke of the hood member 21 is increased, and the impact force input to the hood member 21 can be effectively buffered by the deformation of the hood member 21 and the biasing force of the torsion coil spring 300. Further, since the torsion coil spring 300 is provided in the link mechanism 25, space can be saved and the structure can be further simplified.

第１の実施形態〜第３の実施形態において、リンク機構２５は中間リンク部材４１を備えているが、中間リンク部材４１を用いずに、第１リンク部材３３と第２リンク部材３４とのフード側固定部材３２側一端３３ｂ，３４ｂをそれぞれフード側固定部材３２に直接回動自在に支持し、車体５の前端に所定値以上の衝撃力が入力されると第２リンク部材３４とフード側固定部材３２との支持を解除するようにしてもよい。この場合も、別途専用の跳ね上げ機構を用いることなくフード部材２１を跳ね上げることができる。 In the first to third embodiments, the link mechanism 25 includes the intermediate link member 41, but the hood of the first link member 33 and the second link member 34 without using the intermediate link member 41. The side fixing member 32 side one ends 33b and 34b are directly supported by the hood side fixing member 32 so as to freely rotate. When an impact force of a predetermined value or more is input to the front end of the vehicle body 5, the second link member 34 and the hood side fixing are fixed. The support with the member 32 may be released. Also in this case, the hood member 21 can be flipped up without using a separate dedicated flip-up mechanism.

第１の実施形態〜第３の実施形態では、フード部材２１が前端から持ち上げられる構造になっているが、これに限定されるものではなく、持ち上げ機構２２の前後を逆にしてフード部材２１の前端側とエンジンルーム１２側とを連結し、フード部材２１をキャビン側端から持ち上げられるようにした構成としてもよい。この場合でも、同様の効果が得られる。 In the first to third embodiments, the hood member 21 is structured to be lifted from the front end. However, the present invention is not limited to this, and the front and rear of the lifting mechanism 22 are reversed. The front end side and the engine room 12 side may be connected so that the hood member 21 can be lifted from the cabin side end. Even in this case, the same effect can be obtained.

各形態において、車両用フード装置２０はエンジンルーム１２に用いられているが、適用範囲としてはこの場所に限定されるものではなく、例えばトランクルームなどに用いられてもよい。この場合は、車体５のトランクルーム側端から衝撃力が入力されるとトランクルームを覆うフード部材が跳ね上げられことにより、同様の効果が得られる。また、車両用フード装置２０が搭載されるのは、自動車に限定されるものでもない。 In each embodiment, the vehicle hood device 20 is used in the engine room 12, but the application range is not limited to this place, and may be used in a trunk room, for example. In this case, when an impact force is input from the trunk room side end of the vehicle body 5, the same effect is obtained by the hood member covering the trunk room being flipped up. In addition, the vehicle hood device 20 is not limited to an automobile.

本発明の第１の実施形態に係る車両前方の構成を示す一部破断斜視図である。1 is a partially broken perspective view showing a configuration in front of a vehicle according to a first embodiment of the present invention. 車体左側に配置される第１の実施形態に係る持上機構の倒れた状態を示す平面図でする。It is a top view which shows the state which the lifting mechanism based on 1st Embodiment arrange | positioned at the vehicle body left side fell down. （ａ）は、車体左側に配置される本発明の第１の実施形態に係る持ち上げ機構の倒れた状態を示す側面図、（ｂ）はストライカの移動範囲を示す拡大図、（ｃ）は車体左側に配置された本発明の第１の実施形態に係る持ち上げ機構の起きた状態を示す側面図である。(A) is a side view showing a tilted state of the lifting mechanism according to the first embodiment of the present invention disposed on the left side of the vehicle body, (b) is an enlarged view showing the movement range of the striker, and (c) is a vehicle body It is a side view which shows the state which the raising mechanism based on the 1st Embodiment of this invention arrange | positioned on the left side occurred. 本発明の第１の実施形態に係る中間リンク部材の屈曲部とフード側固定部材の後端との支持解除状態を一部破断して示す平面図である。FIG. 5 is a plan view showing a partially broken state of the support release state between the bent portion of the intermediate link member and the rear end of the hood side fixing member according to the first embodiment of the present invention. 本発明の第１の実施形態に係るフード部材が跳ね上げられた状態を示す側面図である。It is a side view showing the state where the hood member concerning the 1st embodiment of the present invention was flipped up. 本発明の第１の実施形態に係るフード部材の上面から衝撃力が入力された時のフード部材の様子を車幅方向外側から見た状態を示す側面図、（ｂ）はフード部材の上面から衝撃力が入力された時のダンパー装置とリンク機構とリフトアップ手段の様子を車幅方向外側から見た状態を示す側面図である。The side view which shows the state which looked at the mode of the hood member when the impact force was input from the upper surface of the hood member which concerns on the 1st Embodiment of this invention from the vehicle width direction outer side, (b) is from the upper surface of a hood member. It is a side view which shows the state which looked at the state of the damper apparatus, the link mechanism, and the lift-up means when the impact force was input from the vehicle width direction outer side. 車体左側に配置される本発明の第２の実施形態に係る持ち上げ機構の倒れた状態を示す平面図である。It is a top view which shows the state in which the lifting mechanism based on the 2nd Embodiment of this invention arrange | positioned at the vehicle body left side fell down. （ａ）は本発明の第２の実施形態に係る中間リンク部材の後端とフード側固定部材の後端との支持状態を示す一部破断平面図、（ｂ）は本発明の第２の実施形態に係る中間リンク部材の後端とフード側固定部材の後端の支持解除状態を示す一部破断平面図である。(A) is a partially broken plan view showing a support state of the rear end of the intermediate link member and the rear end of the hood side fixing member according to the second embodiment of the present invention, and (b) is a second plan view of the present invention. It is a partially broken top view which shows the support cancellation | release state of the rear end of the intermediate link member which concerns on embodiment, and the rear end of the hood side fixing member. （ａ）は、リンク機構とリフト手段とを一体化した本発明の第３の実施形態に係る持ち上げ機構の倒れた状態を示す側面図、（ｂ）は本発明の第３の実施形態に係る持ち上げ機構の起きた状態を示す側面図である。(A) is a side view which shows the fall state of the lifting mechanism which concerns on the 3rd Embodiment of this invention which integrated the link mechanism and the lift means, (b) concerns on the 3rd Embodiment of this invention. It is a side view which shows the state which the raising mechanism raised.

符号の説明Explanation of symbols

１エンジンルーム（室空間部）
５車体
１０キャビン
１３ａ上端縁（開口縁部）
２０車両用フード装置
２１フード部材
２１ｂフード部材の後端部
２２持ち上げ機構（フード保持手段）
２５リンク機構
３０リフトアップ手段（コイルスプリング）
３３第１リンク部材
３３ａ第１リンク部材の端部
３３ｂ第１リンク部材のフード部材側端部
３４第２リンク部材
３４ａ第２リンク部材の端部
３４ｂ第２リンク部材のフード部材側端部
４０ｂ第２リンク部材の室空間部の開口縁との連結端
４１中間リンク部材
４１ｃ後端
４１ｄ屈曲部（中間リンク部材の後端）
４３ロック手段
４３ａ軸部（支持軸）
４３ｂ駆動部（支持軸スライド機構）
４４挿通孔（支持軸受け部）
６０ダンパー手段（ガススプリング）
６０ａ，６０ｂダンパー手段の両端
３００リフトアップ手段（ねじりコイルスプリング）
３０３ダンパー手段とフード部材との連結位置
３０４ダンパー手段の室空間部の開口縁との連結端
ａ１ダンパーの両端を結ぶ線
ａ２第１リンク部材の両端を結ぶ線
ａ３第２リンク部材の両端を結ぶ線
1 Engine room (room space)
5 Car body 10 Cabin 13a Upper edge (opening edge)
DESCRIPTION OF SYMBOLS 20 Vehicle hood apparatus 21 Hood member 21b Rear end part of hood member 22 Lifting mechanism (hood holding means)
25 Link mechanism 30 Lift-up means (coil spring)
33 First link member 33a End portion of first link member 33b End portion of first link member on hood member side 34 Second link member 34a End portion of second link member 34b End portion of hood member side of second link member 40b First Connection end with opening edge of chamber space portion of two link members 41 Intermediate link member 41c Rear end 41d Bending portion (rear end of intermediate link member)
43 Locking means 43a Shaft (support shaft)
43b Drive unit (support shaft slide mechanism)
44 Insertion hole (support bearing)
60 Damper means (gas spring)
60a, 60b Both ends of damper means 300 Lift-up means (torsion coil spring)
303 Connection position of damper means and hood member 304 Connection end of damper means with opening edge of chamber space portion a1 Line connecting both ends of damper a2 Line connecting both ends of first link member a3 Connecting both ends of second link member line

Claims

車両のキャビン前方に形成され、上部開放口を有する室空間部を上部から塞ぐフード部材と、
前記フード部材の後端部を車体に対して開閉自在に保持すると共に、リンク機構により前記フード部材の後端部を上方へ変位可能に構成されたフード保持手段と、
前記車体に対して前記フード部材を上方に付勢するリフト手段と、
通常状態では前記リフト手段における前記フード部材の後端部の上方変位を規制し、衝突または衝突可能性が検出された際に前記規制を解除するロック手段と、
通常状態では、前記フード部材の開閉の際に伸縮して減衰力を付与するダンパー手段とを備え、
前記ダンパー手段は、衝突または衝突可能性が検出されて前記フード部材の後端部が上方へ変位する際に、前記フード部材の開閉時に比べ開閉度合いに対する伸縮率が少なくなることを特徴とする車両用フード装置。 A hood member that is formed in front of the cabin of the vehicle and closes a room space portion having an upper opening from above,
A hood holding means configured to hold the rear end portion of the hood member so as to be openable and closable with respect to the vehicle body, and to be capable of displacing the rear end portion of the hood member upward by a link mechanism;
Lift means for urging the hood member upward relative to the vehicle body;
Lock means for restricting upward displacement of the rear end portion of the hood member in the lift means in a normal state, and releasing the restriction when a collision or collision possibility is detected;
In a normal state, it comprises a damper means that expands and contracts when the hood member is opened and closed to give a damping force,
The damper means is characterized in that when the collision or the possibility of collision is detected and the rear end portion of the hood member is displaced upward, the expansion / contraction ratio with respect to the degree of opening / closing is less than when the hood member is opened / closed. Food equipment.

請求項１記載の車両用フード装置において、
前記ダンパー手段と前記フード部材との連結位置を、前記フード保持手段と異なる位置したことを特徴とする車両用フード装置。 The vehicle hood apparatus according to claim 1,
A vehicle hood apparatus characterized in that a connecting position between the damper means and the hood member is different from the hood holding means.

請求項１または２記載の車両用フード装置において、
前記リンク機構は、両端が回動自在に支持され、前記フード部材と前記室空間部の開口縁との間に掛け渡され、車体前後方向に沿って配置される第１リンク部材と、該第１リンク部材より短く形成され、その両端が前記フード部材と前記室空間部の開口縁との間に回動自在に掛け渡された第２リンク部材とを有し、
前記ロック手段は、衝突または衝突可能性が検出された際に、前記第２リンク部材を前記フード部材から離脱させることを特徴とする車両用フード装置。 The vehicle hood apparatus according to claim 1 or 2,
The link mechanism is rotatably supported at both ends, spanned between the hood member and an opening edge of the chamber space portion, and a first link member disposed along the longitudinal direction of the vehicle body, A second link member that is formed shorter than one link member, and whose both ends are rotatably spanned between the hood member and the opening edge of the chamber space,
The vehicle hood apparatus, wherein the locking means causes the second link member to be detached from the hood member when a collision or a collision possibility is detected.

請求項３に記載の車両用フード装置において、
前記リンク機構は、前記第１リンク部材の前記フード部材側端部と前記第２リンク部材の前記フード部材側端部との間を回転自在に連結する中間リンク部材を備え、前記第２リンク部材の前記フード部材側端部が前記中間リンク部材とともに前記フード部材に対して脱着可能な支持部を介して前記フード部材に支持され、
前記ロック手段は、衝突または衝突可能性が検出された際に、前記支持部での支持を解除することを特徴とする車両用フード装置。 In the vehicle hood apparatus according to claim 3,
The link mechanism includes an intermediate link member that rotatably connects the hood member side end of the first link member and the hood member side end of the second link member, and the second link member The hood member side end of the hood member is supported by the hood member via a support part that can be attached to and detached from the hood member together with the intermediate link member.
The vehicle hood apparatus, wherein the lock means releases the support at the support portion when a collision or a collision possibility is detected.

請求項４に記載の車両用フード装置において、
前記支持部は、前記中間リンク部材の前記第２リンク部材側端部と前記フード部材との間を脱着可能に支持することを特徴とする車両用フード装置。 The vehicle hood device according to claim 4,
The said support part is supported between the said 2nd link member side edge part of the said intermediate link member, and the said hood member so that attachment or detachment is possible, The vehicle hood apparatus characterized by the above-mentioned.

請求項４または５記載の車両用フード装置において、
前記支持部は、前記第２リンク部材の前記フード部材側一端と前記中間リンク部材とを支持する支持軸と、前記フード部材に設けられて前記支持軸を支持する支持軸受け部とを有して構成され、前記支持軸が前記支持軸受け部に支持されることで前記第２リンク部材の前記フード部材側端部と前記中間リンク部材とが共に前記フード部材に支持され、
前記ロック手段は、衝突または衝突可能性が検出された際に、前記支持軸をスライドさせることで、前記支持軸と前記支持軸受け部との支持を解除する支持軸スライド機構であることを特徴とする車両用フード装置。 In the vehicle hood apparatus according to claim 4 or 5,
The support portion includes a support shaft that supports the hood member-side end of the second link member and the intermediate link member, and a support bearing portion that is provided on the hood member and supports the support shaft. Configured, the support shaft is supported by the support bearing portion, so that the hood member side end of the second link member and the intermediate link member are both supported by the hood member,
The lock means is a support shaft slide mechanism that releases support of the support shaft and the support bearing portion by sliding the support shaft when a collision or collision possibility is detected. Vehicle hood device.

請求項１乃至６の何れかに記載の車両用フード装置において、
前記リフト手段が前記リンク機構内に設けられていることを特徴とする車両用フード装置。 The vehicle hood apparatus according to any one of claims 1 to 6,
A vehicle hood apparatus, wherein the lift means is provided in the link mechanism.

請求項７記載の車両用フード装置において、
前記リフト手段は、前記リンク機構の各支持点で形成される多角形の内角を広げる方向へ付勢するように配置されていることを特徴とする車両用フード装置。 The vehicle hood device according to claim 7,
The vehicular hood apparatus, wherein the lift means is arranged so as to bias in a direction in which an inner angle of a polygon formed by each support point of the link mechanism is widened.

請求項３乃至８の何れかに記載の車両用フード装置において、
前記ダンパー手段は、その両端が回転自在に支持され、前記フード部材と前記室空間部の開口縁との間に掛け渡されていて、
前記ダンパー手段の両端を結ぶ線と、前記第１リンク部材の両端を結ぶ線との交点（Ｘ）を、前記ダンパー手段の前記室空間部の開口縁との連結端よりも前方下方に仮想配置するとともに、前記第１リンク部材の両端を結ぶ線と前記第２リンク部材の両端を結ぶ線との交点（Ｙ）を前記第２リンク部材の前記室空間部の開口縁との連結端よりも後方上方に仮想配置したことを特徴とする車両用フード装置。
The vehicle hood apparatus according to any one of claims 3 to 8,
The damper means is rotatably supported at both ends thereof, and is spanned between the hood member and the opening edge of the chamber space portion,
The intersection (X) of the line connecting both ends of the damper means and the line connecting both ends of the first link member is virtually arranged below the connecting end of the damper means with the opening edge of the chamber space portion. In addition, the intersection (Y) of the line connecting both ends of the first link member and the line connecting both ends of the second link member is set to be more than the connecting end of the second link member with the opening edge of the chamber space portion. A vehicular hood apparatus characterized by being virtually arranged rearward and upward.