JP2005153554A - Rear part structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear part structure of a vehicle capable of improving easiness-to-use of a back door. <P>SOLUTION: The back door 3 rotatably supported in the vertical direction A and opening-closing an opening part 22, is arranged in an upper edge part 23 of a rear surface 21 of a car body 2 in a rear part of a one-box car 1. This back door 3 is constituted with vertically divided upper side door 31 and lower side door 32 and hinges 33 and 33 for connecting both doors 31 and 32, as the center. Pulleys 35 and 35 are arranged on the left-right sides on the car inside of the upper side door 31, and a door side projection part is arranged on the left-right sides of the lower side door 32. A car body side projection part is arranged between the pulleys 35 and the door side projection part on the left-right sides of a rear surface 21 of the car body 2. Wires 4 and 4 suspended by the pulleys 35 and tensioned by being fixed to the lower side door 32 and the rear surface 21 of the car body 2, are also arranged in the rear part of the one-box car 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rear structure of a vehicle provided with a flip-up type back door.

  Conventionally, an opening 103 is provided on the rear surface 102 of the vehicle body 101 at the rear part of the one box car, for example, as in the one box car 100 shown in FIG. A flip-up-type back door 105 is attached through this. The back door 105 has an upper end 151 that is attached to the upper edge 121 via a hinge 104 and is supported so as to be rotatable in the vertical direction A. By rotating in the vertical direction A, the opening 103 is opened and closed. doing.

  However, since the flip-up back door 105 is supported by the vehicle body 101 so as to be rotatable in the vertical direction A, a back door extending in the vertical direction A as shown in FIG. 105 rotation trajectories 105x are formed.

  Therefore, in the space 110 formed on the rear side when the vehicle 100 is stopped, the length 110a in the front-rear direction B is the front-rear direction of the rotation locus 105x of the back door 105 even if the length in the left-right direction is longer than the vehicle width. When the length B is shorter than the length 105a (a linear distance connecting the rear end of the rotation trajectory 105x and the rear end of the vehicle body 101), when the back door 105 is opened and closed, it touches an object such as the wall 110 located behind. Therefore, it cannot be opened and closed sufficiently.

  In addition, even if there is a sufficient space 120 for opening and closing the back door 105 on the rear side of the vehicle, if the vertical dimension 105b of the back door 105 is relatively large, the rotation trajectory 105x of the back door 105 is the rear of the vehicle body. In order to further swell to the side, the back door 105 must be opened and closed while the person is retracting. Therefore, the usability of the back door 105 is not good.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a vehicle rear structure that can improve the usability of a back door.

  In order to solve the above problems, in the rear structure of the vehicle according to claim 1 of the present invention, the opening is supported by an upper edge of the opening provided on the rear surface of the vehicle body so as to be rotatable in the vertical direction. In a rear structure of a vehicle having a back door that opens and closes, an upper door and a lower door that are divided into upper and lower parts, and a door connection that rotatably connects the lower door to the upper door in the vertical direction. And the upper door rotates in the vertical direction between the back door split position and the back door fully opened position, and the lower door is moved via the door connecting means. Lower door rotating means for rotating in the vertical direction between the fully closed position of the back door and the folding position of folding the upper door to the vehicle interior side is provided.

  In such a configuration, since the lower door of the back door is pivoted in the vertical direction while being bent toward the inside of the vehicle at the time of opening and closing, the length of the back door in the front-rear direction compared to the conventional back door that is not bent. Becomes shorter. Therefore, even when the space on the vehicle rear side is narrower than the space where the conventional back door can be opened and closed, the back door can be sufficiently opened and closed. In addition, even if the length of the back door in the vertical direction is relatively large, it is possible to open and close the back door without a person retreating.

  Further, in the rear structure of the vehicle according to claim 2, the door connecting means has one end side fixed to the vehicle interior side of the upper door and the other end side fixed to the vehicle interior side of the lower door, and in the vertical direction. It is assumed that the hinge is formed to be foldable.

  In such a configuration, the lower door can be connected to the upper door so as to be rotatable in the vertical direction with a simple configuration.

  Further, in the rear structure of the vehicle according to claim 3, the lower door rotating means includes suspension means provided on the vehicle interior side of the upper door, and the lower door rotating means positioned below the suspension means. A pair of fixing means provided on the inner side of the side door and on the rear part of the vehicle body, and both ends of the lower door through the pair of fixing means in a state of being suspended by the hanging means, A string-like member fixed and stretched to the rear portion of the vehicle body, and the hanging means is formed to support the string-like member so as to be movable in the front-rear direction of the vehicle body, As for the string-like member, one end fixed to the lower door moves in the vertical direction as the hanging means moves in the vertical direction as the upper door rotates in the vertical direction. By moving the lower door up and down It is assumed to rotate.

  In such a configuration, the lower door can be rotated in the vertical direction with a simple configuration.

  Further, in the rear structure of the vehicle according to claim 4, the pair of fixing means are formed so as to protrude, while the both ends of the string-like member are annular so as to be hooked with a gap between the pair of fixing means. It is supposed to be formed.

  In such a configuration, since the degree of freedom is generated in the movement of both ends of the string-like member, the movement of the string-like member can be made smooth.

  Further, in the rear structure of the vehicle according to claim 5, the suspension means is provided swingably on the vehicle inner side of the upper door.

  In such a configuration, when the string-like member moves on the suspension means, the suspension means swings to reduce the load on the upper door accompanying the movement of the string-like member. The movement can be made smooth.

  In the rear structure of the vehicle according to claim 1 of the present invention, the lower door of the back door rotates in the vertical direction while being bent toward the inside of the vehicle when opening and closing, so that the back door is compared with a conventional back door that is not bent. The length of the rotation trajectory in the front-rear direction is shortened. Therefore, even when the space on the vehicle rear side is narrower than the space where the conventional back door can be opened and closed, the back door can be sufficiently opened and closed. In addition, even if the length of the back door in the vertical direction is relatively large, it is possible to open and close the back door without a person retreating. Therefore, the usability of the back door can be improved.

  In the rear structure of the vehicle according to the second aspect, the lower door can be connected to the upper door so as to be rotatable in the vertical direction with a simple configuration. Therefore, the usability of the back door can be improved while suppressing the cost.

  In the rear structure of the vehicle according to the third aspect, the lower door can be rotated in the vertical direction with a simple configuration. Therefore, the usability of the back door can be improved while suppressing the cost.

  In the rear structure of the vehicle according to the fourth aspect, since the freedom of movement of both ends of the string-like member is generated, the movement of the string-like member can be made smooth. Therefore, the open / close operability of the back door can be improved.

  Further, in the rear structure of the vehicle according to claim 5, when the string-like member moves on the suspension means, the suspension means swings so that the load applied to the upper door as the string-like member moves is increased. Since it is reduced, the movement of the string-like member can be made smooth. Therefore, the opening / closing operation of the back door can be improved.

  In order to explain the present invention in more detail, it will be described below with reference to the accompanying drawings.

  FIG. 1 is a right side view of a rear structure of a one-box car 1 showing an embodiment of the present invention. An opening 22 is provided on the rear surface 21 of the vehicle body 2 at the rear of the one-box car 1, and a flip-up back door 3 is attached to the upper edge 23 of the opening 22. As shown in FIG. 2, the back door 3 has an upper end 30 attached to an upper edge 23 via a hinge 24 and is supported so as to be rotatable in the vertical direction A, and is rotated in the vertical direction A. Thus, the opening 22 is opened and closed.

  As shown in FIG. 3, the back door 3 includes an upper door 31 and a lower door 32 which are divided into upper and lower parts, and a pair of hinges 33 which are door connecting means of the present invention for connecting the doors 31 and 32. 33. A rubber plate 34 is attached to the lower end surface 31 a of the upper door 31 and the upper end surface 32 a of the lower door 32, which are divided surfaces of the doors 31 and 32.

  As shown in FIG. 4, the upper door 31 is provided with an opening 312 at an intermediate portion between the left and right side edge portions 311 a of the inner panel 311 constituting the vehicle interior, and a closing member 313 for closing the opening 312 is provided. It has been.

  The closing member 313 includes a closing portion 313a that closes the opening 312 and a mounting portion 313b provided on the peripheral side of the closing portion 313a. A pin 315 is provided on the peripheral portion 314 of the mounting portion 313b opening 312. It is attached with. The closing portion 313a is formed to be recessed toward the inside 31x of the upper door 31, and an insertion hole 313d is provided in the bottom portion 313c.

  In the closing member 313, a pulley 35 which is a hanging means of the present invention is provided. The pulley 35 includes a support member 351 attached to the bottom portion 313c of the closing portion 313a, and a roller 353 that is supported on the support member 351 via a rotation shaft 352 so as to be rotatable in the front-rear direction B of the vehicle body.

  The support member 351 includes a support member attachment portion 354 attached to the bottom portion 313c of the closing portion 313a, and a support member main body 355 attached to the support member attachment portion 354.

  The support member mounting portion 354 is formed in an I-shape, and is inserted into the insertion portion 354a through the insertion hole 313d in the bottom portion 313c of the closing portion 313a and the inner side provided at the inner end (the vehicle body rear side end) of the insertion portion 354a. The engaging part 354b is composed of an engaging part 354b and an outer engaging part 354c provided at the outer end (front end of the vehicle body) of the insertion part 354a.

  The inner locking portion 354b is formed to be longer than the insertion portion 354a so as to be locked to the inner surface 313e of the bottom portion 313c of the closing portion 313a. Therefore, the pulley 35 swings inward of the upper door 31 when the insertion portion 354a of the support member 351 is inserted into the insertion hole 313d of the closing portion 313a and the inner locking portion 354b is locked by the closing portion 313a. It is provided freely.

  The outer locking portion 354c is longer than the insertion portion 354a so as to be locked to the outer surface 313f of the bottom portion 313c of the closing portion 313a, and penetrates the inside in the left-right direction of the outer locking portion 354c. A through hole 354d is provided.

  On the other hand, the support member main body 355 includes a first attachment portion 356 attached to the outer locking portion 354c and a second attachment portion 358 attached to the first attachment portion 356 with pins 357 and 357.

  The first attachment portion 356 includes a U-shaped insertion portion 356a that is inserted through the through hole 354d of the outer locking portion 354c, and a pair of extension portions 356b that are extended outwardly from both ends of the insertion portion 356a in a U-shape. 356b.

  Therefore, the support member main body 355 is supported by the insertion portion 356a being inserted into the through hole 354d of the outer locking portion 354c and the insertion portion 356a and the extending portions 356b, 356b being locked by the outer locking portion 354c. The member mounting portion 354 is provided to be swingable.

  On the other hand, the second mounting portion 358 is formed in a Mt. Fuji shape, and both ends of the bottom portion 358b are fastened with pins 357 at the tip portions of both extending portions 356b, 356b with the top 358a facing the front side of the vehicle body. The rotating shaft 352 is attached to the center portion of the second attachment portion 358 in the vehicle width direction.

  The roller 353 is supported at the center by a rotating shaft 352 and rotates in the longitudinal direction B of the vehicle body. A groove (not shown) is formed on the outer peripheral surface 353a of the roller 353 along the outer periphery of the roller 353. ) Is formed.

  On the other hand, as shown in FIG. 3, the lower door 32 is provided with a handle 36 at the center of the vehicle outer surface 322 of the upper end 321. Further, in the lower door 32, a pair of door side projections constituting the door side fixing means of the present invention are formed on the left and right side edge portions 325 and 325 of the inner surface 324 as shown in FIG. Portions 37 and 37 are provided.

  The door-side protruding portion 37 is formed to protrude forward from the vehicle inner side surface 324 of the lower end portion 323 of the lower door 32. 372. The base portion 371 is formed in a columnar shape, while the locking portion 372 is formed in a spherical shape wider than the base portion 371.

  Further, as shown in FIG. 3, the hinge 33 includes an upper door attachment portion 331 attached to an inner side surface 31 c (an outer surface of the inner panel 311) of the lower end portion 31 b of the upper door 31 and a lower end portion 331 a of the upper door attachment portion 331. An upper end portion 333a is supported by a pivot shaft 332 so as to be pivotable in the vertical direction, and a lower door attachment portion 333 attached to the inner surface 32 of the upper end portion 321 of the lower door 32.

  Accordingly, the hinge 33 is formed such that one end side is fixed inside the upper door 31 and the other end side is fixed inside the lower door 32 so that the hinge 33 can be bent in the vertical direction A. Are connected to each other so as to be rotatable in the vertical direction A.

  On the other hand, as shown in FIG. 6, a pair of vehicle body side projections 26, 26 constituting the vehicle side fixing means of the present invention are provided on the right and left right edges 25, 25 of the opening 22 on the rear surface 21 of the vehicle body 2. It is provided between the pulleys 35 and 35 and the door side projections 36 and 36.

  The vehicle body-side protrusion 26 is formed to protrude rearward from the rear surface 21 of the vehicle body 2, and includes a base portion 261 that protrudes from the rear surface 21 and a locking portion 262 that is provided at the tip of the base portion 261. The base portion 261 is formed in a columnar shape, while the locking portion 262 is formed in a spherical shape wider than the base portion 261.

  In addition, a pair of left and right wires 4 and 4 which are the string-like members of the present invention are provided at the rear portion of the one box car 1. 37 and the vehicle body side projections 26 and 26 constitute the lower door rotating means of the present invention.

  As shown in FIGS. 2 and 4, the wire 4 is suspended by a middle portion 41 supported by a roller 353 of a pulley 35 so as to be movable in the longitudinal direction B of the vehicle body, as shown in FIGS. 5 and 6. Further, the door side end portion 42 and the vehicle body side end portion 43 are provided in a state of being fixed and stretched to the lower door 32 and the rear surface 21 of the vehicle body 2 via both protrusions 37 and 26. The both end portions 42 and 43 of the wire 4 are formed in an annular shape so as to be hooked between the door-side protrusion portion 37 and the vehicle body-side protrusion portion 26 with gaps 42a and 43a therebetween.

  Further, at the rear part of the one-box car 1, as shown in FIG. 2, a pair of connecting the inner side of the upper door 31 and the left and right side edges 25, 25 of the vehicle body rear surface 21 above the wires 4, 4. Gas stays 5 and 5 are provided.

  The gas stay 5 includes a cylinder tube 51 whose upper end is attached to the upper part of the inner panel 311 (see FIG. 4) of the upper door 31, and an inner upper end that is reciprocally inserted from the lower end of the cylinder tube 51. 21 and a rod 52 attached to the left and right side edges 25.

  The cylinder tube 51 is filled with gas, and a rod (not shown) is provided at one end of the rod 52. When the back door 3 is fully closed, the gas in the cylinder tube 51 is pushed by this piston. Has been compressed.

  In order to open the back door 3 in such a configuration, the back door 3 is lifted by holding the handle 36 of the lower door 32. Then, as shown in FIG. 7, as the upper door 31 rotates from the divided position C to the fully opened position D of the back door 3, the pulleys 35 and 35 move upward.

  As the pulleys 35 and 35 move upward, the wires 4 and 4 move to the front side of the rollers 353 and 353 using the rotation of the rollers 353 and 353, and thereby the end 42 on the door side. , 42 moves upward.

  By the movement of the door-side end portions 42, 42, the lower door 32 is pulled up to the inside of the vehicle and the hinges 33, 33 are bent upward, so that the upper door is turned upward from the fully closed position E to the inside of the vehicle. Folded inside 31 cars.

  When the upper door 31 rises above a predetermined position, the rods 52 and 52 of the gas stays 5 and 5 are extended upward by the gas pressure to urge the upper door 31 upward. Therefore, the upper door 31 is naturally rotated upward until it is positioned at the fully open position D while being assisted by the extension force of the gas stays 5 and 5, and the upper door 31 is moved to the fully open position with the lower door 32 folded. Hold on D.

  On the other hand, in order to close the back door 3, the back door 3 is lowered by holding the handle 36 of the lower door 32. Then, as the upper door 31 rotates from the fully open position D of the back door 3 to the divided position C as shown in FIG. 7, the pulleys 35, 35 move downward.

  As the pulleys 35 and 35 move downward, the wires 4 and 4 move to the rear side of the rollers 353 and 353 using the rotation of the rollers 353 and 353, and thereby the end 42 on the door side. , 42 moves downward.

  When the doors 42 and 42 move, the lower door 32 is lowered to the outside of the vehicle and the hinges 33 and 33 are bent downward, so that the vehicle can be moved from the folding position F folded to the inside of the upper door 31. It turns downward and returns to its original state (fully closed position E).

  When the upper door 31 is lowered below a predetermined position, the rods 52 and 52 of the gas stays 5 and 5 are contracted by the weight of the back door 3 to urge the upper door 31 downward. Therefore, the upper door 31 is naturally rotated downward until it returns to the division position C while being assisted by the weight of the back door 3.

  Thus, in the present embodiment, when the back door 3 is opened and closed, the lower door 32 is rotated in the vertical direction A between the fully closed position E and the folding position F by the lower door rotating means. The back door 3 rotates in the vertical direction A while being bent toward the inside of the vehicle.

  For this reason, the back door 3 has a length dimension 105b in the vertical direction that is the same as the length 3b in the vertical direction of the back door 3 and is not formed to be foldable (see FIGS. 8 and 9). The length 3a in the front-rear direction B of the rotation locus 3x is shorter than the length 105a in the front-rear direction of the rotation locus 105x of the conventional back door 105.

  Therefore, even if the space 110 formed on the rear side when the vehicle 1 is stopped is narrower than the space 120 that can be opened and closed by the conventional back door 105, the length 110a of the space 110 in the front-rear direction B is a turning locus. If it is longer than 3x length 3a in the front-rear direction B, the back door 3 can be sufficiently opened and closed without coming into contact with an object such as the wall 110 located behind. Further, the back door 3 is bent, so that it is possible to open and close the back door 3 without retreating a person even if the length dimension 3b in the vertical direction is relatively large. Therefore, in the rear structure of the vehicle 1 of the present embodiment, usability of the back door 3 can be improved.

  In addition, by using the hinge 33 as a door connecting means for connecting the upper door 31 and the lower door 32 of the back door 3, the lower door 32 can be freely rotated in the vertical direction A to the upper door 31 with a simple configuration. Can be linked. Therefore, in the rear structure of the vehicle 1 of the present embodiment, it is possible to improve the usability of the back door 3 while suppressing costs.

  Further, the back door 3 is divided and configured by providing a rubber plate 34 on the lower end surface 31 a of the upper door 31 and the upper end surface 32 a of the lower door 32, which are the split surfaces of the doors 31 and 32. However, watertightness and safety can be maintained.

  Further, the lower door rotating means is composed of the wires 4 and 4, the pulleys 35 and 35, the door side protrusions 37 and 37, and the vehicle body side protrusions 26 and 26. The door 32 can be rotated in the vertical direction A. Therefore, in the rear structure of the vehicle 1 according to the present embodiment, the usability of the back door 3 can be further improved while suppressing the cost.

  Further, both end portions 42 and 43 of the wire 4 are formed in an annular shape so as to be caught in the door-side projection portion 37 and the vehicle body-side projection portion 26 with gaps 42a and 43a therebetween. Since the degree of freedom occurs, the movement of the wire 4 can be made smooth. Therefore, in the rear structure of the vehicle 1 of the present embodiment, the opening / closing operability of the back door 3 can be improved.

  Further, since the pulley 35 is swingably provided inside the upper door 31, the pulley 35 swings when the wire 4 moves on the pulley 35. This reduces the load on the upper door 31 as the wire 4 moves, so that the movement of the wire 4 can be made smooth. Therefore, in the rear structure of the vehicle 1 of the present embodiment, the open / close operability of the back door 3 can be further improved.

  In the rear structure of the vehicle 1 according to the present embodiment, the wire 4 is used as the string-like member, and the pulley 35 is used as a hanging means for suspending the string-like member. A belt or the like may be used, or a gear, a member having an insertion hole through which the string-like member is inserted, a hook-like member that hooks the string-like member, or the like may be used as the hanging means.

It is a right view of the rear part structure of the one box car which shows embodiment of this invention. It is a right view of the rear part structure of the one box car which shows the state which opened the back door to the middle. It is a right view of a back door. It is sectional drawing which shows the principal part of an upper door in a back door. It is a right view which shows the lower end part of a lower door in a back door. It is a right view which shows the principal part of an intermediate part in a vehicle body rear part. It is a right view of the rear part structure of the one box car which shows the opening / closing operation | movement of a back door. It is a perspective view which shows the rear part structure of the conventional one box car. It is a right view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 One box car 2 Car body 3 Back door 4 Wire 21 Rear surface 22 Opening part 23 Upper edge part 26 Car body side protrusion part 31 Upper door 32 Lower door 33 Hinge 35 Pulley 37 Door side protrusion part 42 Door side edge part 42a Crevice 43 Car body Side end 43a Clearance A Vertical direction B Front-rear direction of vehicle body C Split position D Fully open position E Fully closed position F Folding position

Claims (5)

In the rear structure of the vehicle provided with a back door that is supported by the upper edge of the opening provided on the rear surface of the vehicle body so as to be pivotable in the vertical direction, and opens and closes the opening.
The back door is composed of an upper door and a lower door divided into upper and lower parts, and door connecting means for connecting the lower door to the upper door so as to be rotatable in the vertical direction.
As the upper door rotates in the vertical direction between the back door split position and the back door fully open position, the back door is fully closed via the door connecting means. And a lower door rotating means for rotating in a vertical direction between the upper door and a folding position at which the upper door is folded inward. The door connecting means is composed of a hinge formed so that one end side is fixed to the inner side of the upper door and the other end side is fixed to the inner side of the lower door, and is foldable in the vertical direction. The rear structure of the vehicle according to claim 1, wherein the vehicle has a rear structure. The lower door rotation means is provided on the vehicle inner side of the upper door, and on the vehicle inner side of the lower door and on the rear part of the vehicle body. A pair of fixing means, and a string-like shape in which both ends are fixed to the inner side of the lower door and the rear part of the vehicle body via the pair of fixing means in a state of being suspended by the suspension means Composed of members,
The suspension means is formed to support the string-like member so as to be movable in the front-rear direction of the vehicle body,
In the string-like member, one end fixed to the lower door moves in the vertical direction as the hanging means moves in the vertical direction as the upper door rotates in the vertical direction. The rear structure of the vehicle according to claim 1 or 2, wherein the lower door is rotated in the vertical direction. 4. The pair of fixing means are formed so as to protrude, and the both end portions of the string-like member are formed in an annular shape so as to be hooked with a gap between the pair of fixing means. Vehicle rear structure. The vehicle rear part structure according to claim 3 or 4, wherein the suspension means is swingably provided on the inner side of the upper door.

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