JP4539323B2 - Rear body structure of the vehicle - Google Patents

Description

  The present invention relates to a rear vehicle body structure of a vehicle, and in particular, a so-called curtain airbag device for deploying and inflating an airbag main body in a curtain shape at a side portion in a vehicle interior while mounting an air conditioning duct on the rearmost pillar of the vehicle is mounted. The present invention relates to a rear body structure of a vehicle.

  Conventionally, it is known to arrange an air conditioner at the rear of the vehicle in order to improve the air conditioning performance in the passenger compartment.

  For example, Patent Document 1 below discloses an air conditioner disposed at the rear of a vehicle. In this patent document 1, the air conditioning duct which guides the air-conditioning air of an air conditioner to the roof side is arrange | positioned at the rearmost pillar.

  As described above, when the air conditioning duct is arranged at the rearmost pillar, a large cross-sectional area of the air conditioning duct can be secured by using a relatively large rearmost pillar, so that the air conditioning performance can be improved.

  In recent years, in order to improve the safety of passengers in the rear seat, a three-point seat belt device is often used for the rear seat. When this three-point seat belt device is adopted, a shoulder anchor (upper end support portion of the seat belt) is installed on the rearmost pillar located on the side of the rear seat.

  Furthermore, in recent years, a so-called curtain airbag device has also been proposed in which an airbag body is deployed and inflated in a curtain shape on the side of the vehicle interior in order to protect passengers in the vehicle interior when the vehicle collides or rolls over. Yes.

  For example, in Patent Document 2 below, the airbag body of a curtain airbag device is set so as to be deployed and inflated to the vicinity of a so-called belt line (lower opening edge of the vehicle side window). A device in which almost the entire region is covered with an airbag body is disclosed.

  As described in Patent Document 2, in this curtain airbag device, in order to secure the tension (tension) of the airbag body in the vehicle front-rear direction in the vicinity of the belt line, It is necessary to install from the lowermost front pillar to the lowermost pillar via the roof side rail.

JP 11-254947 A JP 2001-328503 A

  By the way, in the curtain airbag device for rollover that operates the airbag body at the time of rollover or rollover prediction, it is necessary to protect the occupant by maintaining the airbag body deployed and inflated for a long time. For this reason, it is necessary to increase the size of the inflator that supplies gas to the airbag body.

  In Patent Document 2 described above, the inflator is installed on the rearmost pillar. When the inflator is increased in size as described above, if the inflator is installed on the rearmost pillar, a large layout space is required for the rearmost pillar. .

  As described in Patent Document 1, an air conditioning duct is disposed on the rearmost pillar to ensure air conditioning performance, and a shoulder anchor is disposed on the rearmost pillar to improve the safety of the rear seat occupant. If the airbag main body is placed in the rearmost pillar to secure the tension of the curtain airbag device as shown in 2, the rearmost pillar needs more layout space to place these equipment. become.

  However, if the rear pillar is too large, depending on the vehicle model, the rear side of the rear pillar will become a blind spot in a wide range, which may worsen the driver's rear view, or against the seated occupant of the rear seat There is a problem that the side field of view is blocked and the feeling of pressure on the occupant increases.

Therefore, the present invention optimizes the equipment arranged in the rearmost pillar in the rear body structure of the vehicle, thereby preventing the deterioration of the air conditioning performance, improving the safety of the rear seat occupant, and supporting the rollover. While ensuring the performance of the curtain airbag device, it is possible to suppress the enlargement of the rearmost pillar and improve the driver's rear view or the side view of the rear seated occupant, and It can be used effectively as a shock absorbing member, can improve the safety of the passenger in the rear seat, and can prevent the head of the passenger in the rear seat from directly interfering with the shoulder anchor during rollover An object is to provide a rear body structure of a vehicle.

The rear vehicle body structure of the vehicle according to the present invention includes an air conditioning duct extending in a vertical direction for guiding conditioned air from the air conditioner to the roof side, a shoulder anchor of a seat belt device, and a curtain airbag device stored in the rearmost pillar of the vehicle. The curtain airbag device is configured to deploy and inflate the airbag body into a curtain shape at least during rollover or rollover prediction. airbag body of the air bag system, the co attaching a rear end portion thereof to the lower portion of the rearmost pillar, the inflator of the curtain air bag system, installed in a predetermined vehicle parts other than the outermost rear pillar, the air-conditioning The duct is located in the space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel, and the rear of the airbag body in the stored state. The shoulder anchor is disposed rearward of the air conditioning duct and disposed in a space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel, and is fixed to the vehicle body panel. It is a thing.

  According to the above configuration, the curtain airbag device is configured as a curtain airbag device that supports rollover by setting the airbag body to expand and inflate in a curtain shape at least during rollover, and the rear end portion of the airbag body By attaching to the lower part of the rearmost pillar, it is possible to obtain tension in the vicinity of the belt line of the airbag body at the time of deployment and inflation, and by installing the inflator in a predetermined vehicle part other than the rearmost pillar, The inflator capacity can be set freely without increasing the size of the rear pillar.

  For this reason, the rear pillars are equipped with necessary equipment such as air conditioning ducts, shoulder anchors, and stored airbag bodies, while securing tension in the vicinity of the belt line required for a rollover-capable curtain airbag device. And the inflator can be enlarged.

  The rearmost pillar is not particularly limited as long as it is a pillar installed at the rear end of the vehicle, and if it is a three-row seat wagon type vehicle, it means a D-pillar, and a two-row seat hatchback type vehicle. If so, C pillar.

Furthermore, the predetermined vehicle parts other than the rearmost pillar are the roof of the vehicle, the front pillar other than the rearmost pillar (A to C pillar when the rearmost pillar is D pillar, and A, when the rear pillar is C, B pillar).

Further, according to the above configuration, the air-conditioning duct is disposed adjacent to the rear of the airbag body in the housed state in the space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel, and the shoulder anchor is located behind the air-conditioning duct. Will be placed in.

For this reason, an air conditioning duct with a hollow inside is arranged on the front side of the rearmost pillar, and a highly rigid and hard shoulder anchor is installed on the rear side in order to change the belt pull-out direction of the seat belt device. As a result, even if the head of the passenger in the rear seat near the rearmost pillar interferes with the rearmost pillar during rollover, it interferes with the hollow air conditioning duct and the air conditioning duct collapses. The shock will be absorbed.

Therefore, the air-conditioning duct can be effectively used as an impact absorbing member, and the safety of passengers in the rear seat can be improved.

Moreover, according to the said structure, a shoulder anchor is arrange | positioned in the space enclosed by the pillar trim of a rearmost pillar, and a vehicle body panel, and is fixed to a vehicle body panel.

For this reason, since the shoulder anchor is not exposed to the outside of the rearmost pillar (in the vehicle interior), it is possible to prevent the head of the passenger in the rear seat from directly interfering with the shoulder anchor during a rollover or the like.

Therefore, even if the head of the passenger in the rear seat interferes with the rearmost pillar at the time of rollover or the like, since it does not directly interfere with the hard shoulder anchor, the safety at the time of rollover or the like can be further improved. In addition, when the shoulder anchor is provided in the vehicle interior, it is necessary to cover the periphery of the high-rigidity portion such as metal of the shoulder anchor with a low-rigidity member in order to reduce the impact when the head contacts the shoulder anchor. The protrusion of the shoulder anchor to the indoor side becomes large and the design and the like deteriorate, but this can be prevented.

  In one embodiment of the present invention, the roof air-conditioning duct connected to the air-conditioning duct is disposed so as to extend in the vehicle front-rear direction along the roof rail on the roof side portion, and the inflator is positioned forward of the vehicle from the roof air-conditioning duct. It is arranged on the side roof or on the pillar ahead of the rearmost pillar.

  According to the above configuration, by arranging the roof air-conditioning duct so as to extend in the vehicle front-rear direction along the roof rail on the roof side, air-conditioned air can be blown into the vehicle interior from the vicinity of the roof rail on the roof side. Moreover, the presence of the inflator does not affect the roof air-conditioning duct by arranging the inflator on the roof in front of the vehicle from the roof air-conditioning duct or the pillar in front of the rearmost pillar.

  For this reason, air-conditioning air can be blown into the passenger compartment from the side of the vehicle that is substantially the same as the direction in which sunlight such as side windows is inserted, and the cross-sectional area of the roof air-conditioning duct can be set freely.

  Therefore, the effect of the air-conditioned air can be efficiently obtained, and the air-conditioning performance can be improved because the flow of the air-conditioned air is not hindered.

  Especially when the inflator is placed on the roof in front of the vehicle from the roof air conditioning duct, the vertical length of the pillar is not limited by the presence of the inflator, so the distance between the belt line and the roof is set short. It is possible to improve the degree of freedom in designing the appearance of the vehicle.

  In one embodiment of the present invention, the inflator is disposed on the roof such that the longitudinal direction extends in the vehicle width direction.

  According to the above configuration, the inflator is disposed on the roof so that the longitudinal direction of the inflator extends in the vehicle width direction.

  For this reason, the inflator comprised with a hard container can generally be utilized as a reinforcement member which raises the rigidity of the vehicle width direction of a roof. Further, by arranging the roof in the vehicle width direction, the length of the inflator is not limited as in the case of the pillar, so the length of the inflator can be set relatively freely, and the inflator capacity can be increased.

  Therefore, the inflator can contribute to improving the rigidity of the vehicle body, and the inflator can be easily increased in size.

  In one embodiment of the present invention, a translucent vehicle body roof opening device is installed at the center of the roof in the vehicle front-rear direction, and the inflator is installed on the vehicle front side from the vehicle body roof opening device. is there.

  According to the above configuration, the translucent vehicle body roof opening device is installed at the center of the roof in the vehicle longitudinal direction, and the inflator extending in the vehicle width direction is installed on the vehicle front side from the vehicle body roof opening device.

  For this reason, the arrangement position of the vehicle body roof opening device on the vehicle rear side is not hindered by the inflator.

  Therefore, the translucent vehicle body roof opening device can be installed as far as possible to the vehicle rear side, and a feeling of release can be obtained to the vehicle rear side of the passenger compartment.

  The vehicle body roof opening device has a vehicle roof such as a sunroof device or a glass roof and is provided with an opening so that a transparent member such as glass can be opened and closed, a glass is fixed, a vehicle body such as a canvas top device, etc. Examples include a roof provided with an opening and the opening covered with a translucent cloth or the like.

In one embodiment of the present invention, a shock absorbing rib is formed in a portion of the pillar trim where a shoulder anchor is installed, and a shock absorbing rib is not formed in at least a portion adjacent to the air conditioning duct.

  According to the above configuration, the shock absorbing rib is formed on the pillar trim in the portion where the shoulder anchor is installed, and the shock absorbing rib is not formed in the adjacent portion of the air conditioning duct.

  For this reason, in the part where the shock absorption performance is improved by contacting with the air conditioning duct, the shock absorption rib is not formed, and the shock absorption rib is formed only in the necessary part, so that the pillar trim is not enlarged more than necessary. It can be formed as thin as possible.

  Therefore, the pillar trim can be made thin and the rearmost pillar can be made as thin as possible while absorbing the impact when the passenger's head in the rear seat interferes.

  According to the present invention, the rear pillar is provided with necessary equipment such as an air-conditioning duct, a shoulder anchor, and a stored airbag body, but in the vicinity of the belt line required for a rollover-compatible curtain airbag device. Securing the tension and increasing the size of the inflator for supplying gas for a long period of time.

In addition, the air conditioning duct is disposed adjacent to the rear of the stored airbag body in a space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel, and the shoulder anchor is disposed rearward of the air conditioning duct. As a result, even if the head of the passenger in the rear seat near the rearmost pillar interferes with the rearmost pillar during rollover, it interferes with the hollow air conditioning duct and the air conditioning duct is crushed. Will be absorbed. Therefore, the air-conditioning duct can be effectively used as an impact absorbing member, and the safety of passengers in the rear seat can be improved.

In addition, the shoulder anchor is not exposed to the outside of the rear pillar (in the vehicle compartment) by placing the shoulder anchor in the space surrounded by the pillar trim of the rear pillar and the vehicle body panel and fixing it to the vehicle body panel. It is possible to prevent the head of the occupant in the rear seat from directly interfering with the shoulder anchor during rollover.

Therefore, the present invention optimizes the equipment arranged in the rearmost pillar in the rear body structure of the vehicle, thereby preventing the deterioration of the air conditioning performance, improving the safety of the rear seat occupant, and supporting the rollover. While ensuring the performance of the curtain airbag device, it is possible to improve the rear view of the driver or the side view of the rear seat occupant by suppressing the enlargement of the rearmost pillar, and to impact the air conditioning duct. It can be effectively used as an absorbing member, can improve the safety of the occupant of the rear seat, and can prevent the head of the occupant of the rear seat from directly interfering with the shoulder anchor at the time of rollover .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall side view of a vehicle adopting the rear body structure of the vehicle according to the embodiment, FIG. 2 is an overall side view when a curtain airbag device is operated, and FIG. 3 is an overall plan view of the vehicle.

  The vehicle V of the present embodiment is a three-row seat wagon type vehicle in which a front seat 1, a first rear seat 2, and a second rear seat 3 are provided in a vehicle interior from the front side of the vehicle. The floor surface 4 in the passenger compartment is a flat surface extending substantially horizontally in the vehicle front-rear direction.

  In addition, the vehicle V is provided with a front door 5 and a rear door 6 on the side of the vehicle corresponding to the front seat 1 and the first rear seat 2, and a front door window 5 a and a rear door 6 are disposed above the front door 5. A rear door window 6a is formed in the upper part, and a quarter window 7 is formed in the upper part of the side part of the second rear seat 3.

  A line connecting the opening lower edges of the side windows 5a, 6a, 7 in the vehicle front-rear direction is referred to as a so-called belt line L. In the vehicle V of the present embodiment, the belt line L is set so as to incline rearward so as to shift upward as it goes toward the vehicle rear side, thereby enhancing the merchantability in design.

  Further, pillars extending in the vertical direction of the vehicle are arranged in front, rear, and between the windows 5a, 6a, and 7 on the respective side portions. Specifically, the A pillar 8 is in front of the front door 5, the B pillar 9 is between the front door 5 and the rear door 6, the C pillar 10 is between the rear door 6 and the quarter window 7, and the D pillar 11 is behind the quarter window 7. Is arranged.

  Among these pillars, the B-pillar 9, the C-pillar 10, and the D-pillar 11 are provided with seat belt devices 12 to protect the passengers of each seat. These seat belt devices 12 are all three-point seat belt devices, and are provided with shoulder anchors 13 at the top of each pillar and retractor mechanisms 14 at the bottom of the pillar.

  In addition, an air conditioner 16 that generates air-conditioning air such as air for cooling is installed in the vehicle body side panel 15 on the rear side of the second rear seat 3. In the air conditioner 16, a blower motor 16a is installed on the front side of the vehicle, and a cooler unit 16b having an evaporator is installed on the rear side of the vehicle.

  In this air conditioner 16, air in the vehicle compartment (inside air) is taken into the inside of the device 16 by a blower motor 16a, and the inside air is cooled by an evaporator to produce cooling air.

  This air for cooling is led to the roof 21 side of the upper part of the vehicle by the vertical air conditioning duct 17 connected to the upper part of the cooler unit 16b.

  The vertical air conditioning duct 17 is installed in the D pillar 11 so as to extend in the vertical direction along the D pillar 11. The upper and lower air-conditioning ducts 17 are made of a resin member having a hollow inside, and are formed to have a predetermined cross-sectional area in order to allow sufficient air-conditioning air to flow.

  In addition, a roof air conditioning duct 18 is arranged on the roof 21 of the vehicle continuously to the upper and lower air conditioning ducts 17. The roof air-conditioning duct 18 includes roof side duct portions 18a and 18a extending in the vehicle front-rear direction on both sides of the vehicle, and end roofs extending in the vehicle width direction on the vehicle rear end portion and connecting the left and right roof side duct portions 18a and 18a. A duct portion 18b, and bulging roof duct portions 18c and 18c that bulge toward the center of the vehicle at a connecting portion between the roof side duct portions 18a and 18a and the end roof duct portion 18b are provided.

  Among these, the roof side duct portions 18a and 18a are disposed along the side rails 19 and 19 extending in the vehicle front-rear direction at the upper end of the vehicle side portion, and are respectively positioned above the C pillar 10 and above the rear door window 6a. There are provided outlets 20 for blowing air-conditioned air.

  For this reason, it becomes possible to blow air-conditioning air from the side upper part in the passenger compartment to the passengers of the first rear seat 2 and the second rear seat 3, and the same direction as the quarter window 7 and the rear door window 6a into which the sun enters. It becomes possible to blow out air for cooling from. For this reason, the part heated by sunlight can be cooled immediately, and air-conditioning performance can be improved effectively.

  A cloth airbag main body 31 of the curtain airbag device is arranged in a folded storage state so as to surround the front door window 5a, the rear door window 6a, and the quarter window 7 at the side upper part in the vehicle interior. Specifically, the A pillar 8 is disposed so as to extend upward from the front end lower portion 8a, extend in the vehicle front-rear direction along the side rail 19, and further extend from the upper end of the D pillar 11 to the rear end lower portion 11a.

  By arranging the airbag main body 31 in this way, as shown in FIG. 2, when the airbag main body 31 is deployed and inflated in a curtain shape on the side of the vehicle interior when the vehicle rolls over, the vicinity of the belt line L Thus, a tension in the vehicle front-rear direction can be generated in the airbag main body 31. That is, by setting attachment points of the airbag main body 31 at the front end lower portion 8a of the A pillar 8 and the rear end lower portion 11a of the D pillar 11, the belt line L and the lower end 31a of the airbag main body 31 are substantially at the time of deployment. It is possible to provide tension at the coincident position.

  The airbag main body 31 is composed of a cloth-like non-inflatable portion 32 and a bag-like inflatable portion 33..., And in operation, by supplying gas to the inflatable portion 33. By inflating 31 in the vehicle width direction and shortening the length of the airbag body 31 in the vehicle longitudinal direction, a tension in the vehicle longitudinal direction is generated at the lower end of the airbag body 31.

  The inflatable portions 33 are set substantially at the position of the occupant's head H, and are configured to reduce the impact of the occupant's head during a rollover and a side collision.

  For this reason, when the airbag main body 31 is deployed and inflated, exposure from the windows 5a, 6a, and 7 to the outside of the vehicle can be suppressed, and occupant protection such as during rollover can be reliably performed.

  A cylindrical inflator 34 that supplies gas to the airbag body 31 is installed on the roof 21 above the B pillar 9.

  This inflator 34 is not a general inflator that generates a high-temperature gas by igniting a gas generating agent such as sodium azide by an ignition device, but is sealed at a low temperature by enclosing a predetermined compressed gas and releasing a closing valve during operation. This is a low-temperature gas type inflator 34 that supplies gas (gas slightly higher than the atmospheric temperature) to the airbag body 31.

  The low-temperature gas type inflator 34 does not cause a phenomenon in which, when the airbag body 31 is deployed and inflated, it is rapidly cooled by constant-temperature air in the vehicle interior and the gas volume contracts instantaneously. Use when you want to expand and inflate for a long time.

  Since this inflator 34 is an inflator 34 for a rollover-capable curtain airbag device, a large amount of gas needs to be ejected for a long period of time, and the inflator 34 is composed of an inflator 34 that is larger than the inflator of a normal airbag device. .

  In particular, in the inflator 34 according to the present embodiment, the compressed gas is sealed, and the size is inevitably increased. Therefore, in the present embodiment, the inflator 34 is disposed so that the longitudinal direction extends in the vehicle width direction. For this reason, it can arrange | position in a space longer than the case where it installs in a pillar etc., and the large sized inflator 34 can be arrange | positioned easily.

  Further, the inflator 34 is disposed at an adjacent position on the rear side of the roof cross member 22 extending in the vehicle width direction, and is attached to the roof cross member 22. In general, since the inflator 34 is formed of a hard container, when the inflator 34 is attached to the roof cross member 22 as described above, the inflator 34 functions as a reinforcing member of the roof cross member 22 to increase the vehicle body rigidity in the vehicle width direction. Will increase.

Further, the arrangement position of the inflator 34 is a substantially central position in the vehicle front-rear direction, and is a position substantially coincident with the gas supply port 31 b to the airbag body 31 described above. For this reason, when the curtain airbag device is operated, the gas ejection direction of the inflator 34 and the supply direction to the airbag body 31 are substantially the same, and the gas supply performance is improved.
Reference numeral 35 denotes a communication pipe that connects the inflator 34 and the airbag body 31.

  The inflator 34 is configured to operate when a rollover of the vehicle V is detected or predicted to rollover by the rollover detection sensor S provided at the center of the vehicle. Although not described in detail, when a vehicle roll angle of a predetermined angle or more (for example, 5 to 30 °) is detected from the rollover detection sensor S by a central processing unit (not shown), it is determined that rollover or rollover is predicted, and the inflator Is configured to output an operation signal.

  A sunroof device 41 capable of opening and closing the roof 21 above the front seat 1 with glass or the like is disposed on the vehicle front side of the inflator 34, and sunlight is directed from above to the first rear seat 2 on the vehicle rear side of the inflator 34. A glass roof 42 fixed to the roof for taking in the light is disposed.

  As described above, the inflator 34 is disposed between the sunroof device 41 and the glass roof 42, particularly on the vehicle front side of the glass roof 42, so that the inflator 34 interferes with the vehicle rear end position of the glass roof 42. There is nothing.

  For this reason, the roof 21 can be made into the glass roof 42 to the vehicle rear side, and sunlight can be taken in to the back in the vehicle interior. However, the vehicle roof side of the glass roof 42 is limited by the inflator 34, but since the sunroof device 41 is provided, the sun does not disappear in front of the passenger compartment.

  Further, since the glass roof 42 and the sunroof device 41 are arranged in the center of the roof as described above, there is no interference with the roof air-conditioning duct 18 extending along the roof rail 19.

  Furthermore, the air conditioning performance of the vehicle interior in which the vehicle V equipped with the glass roof 42 and the sunroof device 41 is easily heated as described above is also provided by arranging the roof air conditioning duct 18 along the roof rail 19 so that the air conditioning air can be Since it can blow out from, it can improve.

  An overhead console 43 provided with various operation switches (for example, operation switches of the sunroof device 41) is disposed between the left and right inflators 34, 34.

  A power cylinder 44 of a power lift gate device is disposed on the opposite D pillar 11 where the upper and lower air conditioning ducts 17 are disposed. Thus, by arranging the power cylinder 44 on the opposite D pillar 11, even if the vehicle is provided with a power lift gate device, it is possible to prevent the D pillar 11 from becoming large.

  In this embodiment, the inflator 34 is arranged so as to extend in the vehicle width direction. However, as shown by a one-dot chain line in FIGS. The inflator 134 may be disposed at such a position.

  In this case, the center portion of the roof 21 can be used more effectively. For example, an effect that the degree of freedom in layout can be increased, for example, the glass roof 42 is set on the entire roof surface.

Further, since the inflator 134 is disposed along the relatively strong side rail 19, there is little possibility that the inflator 134 will be damaged at the time of rollover and the operation reliability of the inflator 134 can be improved.
3 is a front window, and 24 is a back window.

  Next, a specific structure in the vicinity of the D pillar 11 will be described with reference to FIGS. 4 is a detailed side view in the vicinity of the D pillar 11, and FIG. 5 is a cross-sectional view taken along line AA in FIG. In addition, about the component mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 5, the D pillar 11 includes a pillar outer panel 51 that constitutes a vehicle body outer plate and a pillar inner panel 52 that constitutes a vehicle body inner plate, thereby forming a pillar vehicle body closed cross-section 53. Further, by arranging the pillar trim 54 constituting the vehicle interior wall on the inner side of the vehicle body, an equipment storage space 55 is formed between the pillar inner panel 52 and the pillar trim 54.

  In this case, the pillar body closed section 53 is formed such that the width in the vehicle width direction is longer toward the rear side of the vehicle and the width in the vehicle front-rear direction is longer toward the outer side of the vehicle. The rigidity against both the impact from the side of the vehicle is increased.

  In the equipment storage space 55, the airbag body 31 in the storage state is disposed from the front side of the vehicle in the vehicle front-rear direction, the vertical air conditioning duct 17 is disposed behind the airbag body 31, and the shoulder anchor 13 is disposed behind the airbag body 31. ing. Further, in the vehicle width direction, the airbag body 31 is disposed on the outermost side of the vehicle, the vertical air conditioning duct 17 is disposed on the inner side, and the shoulder anchor 13 is disposed on the inner side.

  The airbag body 31, the vertical air conditioning duct 17, and the shoulder anchor 13 are fixed to the pillar inner panel 52 by mounting bolts 56 and 57, respectively.

  In addition, the pillar inner panel 52 is formed with a plurality of bent portions 52a, 52b, 52c to enhance the rigidity of the vehicle body.

  As described above, by arranging the equipment such as the airbag main body 31, first, in the airbag main body 31 in the stored state, from the position closest to the rear end portion of the quarter window 7 during operation such as rollover, The front end portion of the pillar trim 54 is expanded to expand and expand toward the vehicle front side.

  Therefore, as described above, the airbag main body 31 can secure tension in the vehicle front-rear direction in the vicinity of the belt line L.

  Moreover, in the vertical air-conditioning duct 17, a large cross-sectional area that is long in the vehicle front-rear direction can be secured, and as shown in FIG. 5, the occupant head H of the second rear seat 3 is in an obliquely forward position. Therefore, when it interferes with the D pillar 11 at the time of rollover or side collision, the upper and lower air conditioning ducts 17 can be crushed to absorb the impact.

  Therefore, the vertical air conditioning duct 17 can use the vertical air conditioning duct 17 as a shock absorber that protects the occupant while ensuring air conditioning performance.

  Furthermore, since the shoulder anchor 13 is disposed on the vehicle rear side of the D pillar 11, there is less possibility that the head H of the occupant interferes with the hard shoulder anchor 13, and the occupant protection of the second rear seat 3 is achieved. be able to. Moreover, since this arrangement position is located on the vehicle inward side, the point for guiding the seat belt can be positioned more rearward of the occupant's shoulder with respect to the occupant's shoulder of the second rear seat 3. Therefore, the occupant's shoulder can be restrained more reliably, and the effect of the three-point seat belt device 12 can be more reliably obtained.

  Further, shock absorbing ribs 58 are formed on the inner side surface (side surface of the equipment storage space 55) of the pillar trim 54 corresponding to the position where the shoulder anchor 13 is provided, and the occupant's head H temporarily moves to the vehicle rear side. And even if it interferes with the shoulder anchor 13, it is comprised so that an impact may be relieved.

  Since the shock absorbing ribs 58 are provided only in this portion and the shock absorbing ribs 58 are not provided in other portions, the pillar trim 54 itself can be made compact without increasing the size.

  Thus, in this embodiment, the equipment such as the airbag body 31 in the housed state, the upper and lower air conditioning ducts 17 and the shoulder anchors 13 are appropriately arranged in the equipment storage space 55 of the D pillar 11. The enlargement of the D pillar 11 is prevented, the range of blind spots on the rear side of the D pillar 11 can be reduced, the rear view of the driver can be improved, or the side view of the seated occupant in the rear seat can be improved. Sufficiently secured.

  In particular, since the inflator 34 to be enlarged is not arranged on the D pillar 11 but on the roof 21, it is possible to reliably prevent the D pillar 11 from being enlarged.

  Moreover, since the airbag main body 31 arrange | positioned at this D pillar 11 is accommodated in the state which folded the expansion part 33 instead of the non-expansion part 32 in order to protect the head of the seating passenger | crew of a back seat, comparison Although the inflator 34 is not arranged on the D pillar as described above, it can be surely arranged on the D pillar 11.

  In the present embodiment, the shoulder anchor 13 is disposed in the equipment storage space 55 in consideration of protection of the head H of the occupant of the second rear seat 3, but the shoulder anchor 13 is stored in the equipment storage space 55. The space 55 may be placed outside (in the passenger compartment). In this case, since the shoulder anchor 13 and the seat belt S are not present in the equipment storage space 55, the pillar trim 54 can be configured more compactly.

Next, reference examples shown in FIGS. 6 to 8 will be described. 6 is an overall side view of the vehicle corresponding to FIG. 1, FIG. 7 is an overall plan view of the vehicle corresponding to FIG. 3, and FIG. 8 is a cross-sectional view corresponding to FIG.

In this reference example , the layout position of the inflator 234 is set to the B pillar 9 in order to increase the layout flexibility of the roof 21, and the layout position of the shoulder anchor 13 in the equipment storage space 55 of the D pillar 11 is set to the D pillar. 11 is set on the vehicle front side. In addition, about the component similar to the above-mentioned embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

In this reference example , the inflator 234 is disposed in the B pillar 9 above the belt line L with the longitudinal direction directed in the vertical direction. Specifically, the ejection direction is arranged upward.

  As described above, since the inflator does not have to be disposed on the roof 21 by being disposed in the B pillar 9, the layout freedom of the roof 21 can be increased, and the roof air conditioning duct 18 of the air conditioner 16 and The sunroof device 41 and the like can be laid out freely.

  Further, by disposing the inflator 234 in the B pillar 9, the inflator is not disposed in the D pillar 11, so that the driver's rear view is not deteriorated.

In this reference example , the layout in the equipment storage space 55 of the D pillar 11 is such that the shoulder anchor 113 is disposed on the vehicle front side, and the vertical air conditioning duct 117 is disposed on the vehicle rear side.

  As described above, when the shoulder anchor 113 is disposed on the vehicle front side, the shoulder anchor 13 is disposed at a position that is not easily affected by the deformation of the D pillar 11 due to the rear collision of the vehicle. Sometimes, the shoulder anchor 13 can be prevented from being damaged, and the safety of the occupant of the second rear seat 3 at the time of a rear collision can be improved.

  On the other hand, the upper and lower air-conditioning duct 117 is provided with a bent portion 117a at the center to form a closed section. By providing the bent portion 117 a in this way, the cross-sectional rigidity of the upper and lower air conditioning duct 117 is increased, and also when being assembled to the D pillar 11, alignment with the pillar inner panel 52 can be easily performed.

  Further, the pillar trim 154 is provided with shock absorbing ribs 158 only on the vehicle front side corresponding to the shoulder anchor 13. Also in this case, since the shock absorbing rib 158 is provided only in a part, the pillar trim 54 itself can be made compact without increasing the size of the pillar trim 54 itself.

Therefore, in this reference example , since the equipment such as the airbag main body 31 in the storage state, the vertical air conditioning duct 117, and the shoulder anchor 113 are appropriately arranged in the equipment storage space 55 of the D pillar 11, D The enlargement of the pillar 11 can be prevented, the range of blind spots on the rear side of the D pillar 11 can be reduced, and the driver's rear view and the side view of the rear seat occupant can be improved.

In particular, since the inflator 234 is disposed on the B pillar 9, it is possible to prevent the D pillar 11 from being enlarged and to increase the layout freedom of the roof 21.
Other operational effects are the same as those in the above-described embodiment.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The rearmost pillar of the present invention corresponds to the D pillar of the embodiment,
Similarly,
Air conditioning ducts correspond to the upper and lower air conditioning ducts 17, 117,
The vehicle roof opening device corresponds to the glass roof 42,
The space corresponds to the equipment storage space 55,
The present invention is not limited to the above-described embodiment, but includes an embodiment applied to the rear body structure of any vehicle. In the above-described embodiment, a three-row seat wagon type vehicle has been described. However, a two-row seat hatchback type vehicle may be used.

  The inflator may also be implemented with a general high-temperature type inflator. Furthermore, the installation position of the inflator may be an A pillar or a C pillar.

  Further, instead of the glass roof, a sunroof device may be disposed, or a canvas top device may be disposed.

1 is an overall side view of a vehicle according to an embodiment. 1 is an overall side view of a vehicle when a curtain airbag device is operated. FIG. The detailed side view of D pillar vicinity. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. The whole vehicle side view of a reference example . The whole top view of the vehicle of a reference example . Sectional view corresponding to FIG. 5 of Reference Example.

11 ... D pillar (last pillar)
13, 113 ... shoulder anchors 17, 117 ... vertical air conditioning duct (air conditioning duct)
DESCRIPTION OF SYMBOLS 18 ... Roof air-conditioning duct 19 ... Roof rail 31 ... Airbag main body 34,134,234 ... Inflator 42 ... Glass roof (vehicle body roof opening device)
55. Equipment storage space (space)
58,158 ... Shock absorbing rib

Claims (5)

In the rearmost pillar of the vehicle, an air-conditioning duct extending in the vertical direction for guiding the air-conditioned air from the air-conditioning device to the roof side, a shoulder anchor of the seat belt device, and an airbag main body in the storage state of the curtain airbag device are arranged. A vehicle rear body structure,
The curtain airbag device is set to expand and inflate the airbag body into a curtain shape at least during rollover or rollover prediction,
The airbag body of the curtain airbag apparatus, the co attaching a rear end portion thereof to the lower portion of the rearmost pillar,
The inflator of the curtain airbag device is installed in a predetermined vehicle part other than the rearmost pillar ,
The air conditioning duct is disposed adjacent to the rear of the stored airbag body in a space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel, and the shoulder anchor is disposed rearward of the air conditioning duct. And a rear body structure of the vehicle that is disposed in a space surrounded by the pillar trim of the rearmost pillar and the vehicle body panel and is fixed to the vehicle body panel . The roof air-conditioning duct connected to the air-conditioning duct is arranged to extend in the vehicle front-rear direction along the roof rail on the roof side,
2. The rear body structure of the vehicle according to claim 1, wherein the inflator is disposed on a roof in front of the vehicle from the roof air-conditioning duct or a pillar in front of the rearmost pillar. The rear body structure of the vehicle according to claim 1, wherein the inflator is disposed on the roof such that a longitudinal direction extends in a vehicle width direction. In the vehicle front-rear direction center of the roof, a translucent vehicle body roof opening device is installed,
The vehicle rear body structure according to claim 3, wherein the inflator is installed on the vehicle front side of the vehicle body roof opening device. A shock absorbing rib is formed on a portion of the pillar trim where a shoulder anchor is installed, and a shock absorbing rib is not formed at least on the adjacent portion of the air conditioning duct.
The rear body structure of the vehicle according to claim 1 .

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