JPH07186695A - Auxiliary machine arrangement structure for vehicle - Google Patents

Abstract

PURPOSE:To secure the degree of freedom of layout in an engine room and obtain the compact engine room, as for a front engine type vehicle. CONSTITUTION:A flywheel 58 is installed at the output end of a propeller shaft 21, and a starter 61 having a gear 60 meshed with a gear 59 on the periphery of the wheel 58 is installed. Between the propeller shaft 21 and the wheel 58, a rubber coupling 62 is provided, and a transmission 23 and the prepeller shaft 21 are connected so that power can be transmitted through the coupling 62. Further, a pulley 63 is installed in close to the transmission 23 of the coupling 62, and the pulley 63 transmits power to the driving pulley 66 of a compressor 65 for air conditioning through a belt, and to the driving pulley 68 of an alternator 67. The compressor and the alternator 67 are fixed on a bracket supported on a clutch cover 69 which is installed so as to cover the front end of a torque converter 55.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of auxiliaries driven by engine power in a so-called front engine type vehicle.

[0002]

2. Description of the Related Art In a front engine type vehicle, an alternator driven by engine power,
Auxiliary components such as a starter and an air conditioning compressor are arranged in the vicinity of the engine, that is, inside the engine room in front of the vehicle compartment or on the back side (front) of the instrument panel that forms the front wall of the vehicle compartment. It is normal. However, since such devices require a relatively large installation space, arranging them all in front of the vehicle compartment reduces the degree of freedom in layout in the vehicle interior including the engine compartment. There is also a circumstance that the foot space for front seat occupants becomes smaller. In view of this, it has been proposed to arrange the air conditioning system at the rear portion of the vehicle instead of arranging it at the front portion of the vehicle (see Japanese Patent Laid-Open No. 5-50839). However, arranging the rear seats rearward in this manner causes another problem that the space in the luggage compartment must be reduced.

[0003]

[Problems to be Solved] However, if the rear seat is arranged rearward in this way, another problem arises in that the space in the luggage compartment must be reduced. The present invention is configured in view of the above circumstances, and has a front engine type vehicle auxiliary device arrangement capable of ensuring a degree of freedom of layout in the engine room of the vehicle compartment and providing a compact engine room. It is intended to provide a structure. It is another object of the present invention to provide an auxiliary machine arrangement structure for a front engine type vehicle, in which the layout of the rear side of the instrument panel can be facilitated and the foot space of the front seat occupant can be widened.

[0004]

The present invention is configured as follows to achieve the above object. A vehicle auxiliary equipment arranging structure according to the present invention includes an engine arranged in a front portion of a vehicle, an auxiliary machine arranged in a space below a floor panel below a rear seat of the vehicle, and an engine extending in a front-rear direction of the vehicle. And a drive shaft for transmitting power from the auxiliary machine, wherein the auxiliary machine is driven by engine power transmitted through the drive shaft. In this case, further, preferably, the transmission is arranged in the lower space of the floor panel below the rear seat, and the drive shaft is connected to the transmission in a power-transmittable manner. It is preferable that the auxiliary device is arranged laterally of the transmission by utilizing a space. In addition,
It is desirable from the standpoint of assembly efficiency to assemble the auxiliary machine and the transmission as a unit by subassembly. In a preferred aspect, the accessory is an air conditioning compressor. Further, the accessory may be any or all of an alternator, an oil pump, and a starter. Further, according to another feature of the present invention, an air conditioning system including at least one of a blower, an evaporator, and a heater core, which is arranged in a space under the floor panel below the rear seat, and air from the air conditioning system is introduced into the vehicle interior. And a part of the air conditioning duct is arranged in the space below the floor panel. With such a configuration, it is possible to eliminate the duct arranged at the foot of the front seat occupant, and to widen the foot space of the front seat occupant. The floor panel has different levels in the front and rear of the passenger compartment, and a so-called kick-up part, which has a higher level than the front part, is provided below the rear seat, and the air-conditioning is provided in the space below the kick-up part. The system is deployed.

Further, in this case, if the air conditioning system, the auxiliary equipment and the transmission are unitized, the assembling efficiency of the vehicle can be further improved.

[0006]

As described above, in the present invention, attention is paid to a space below the rear seat, which has a relatively large margin as compared with the layout in the engine room or the front of the vehicle compartment. The machines were laid out in the space below the rear seats. That is, since the engine auxiliary equipment or the air conditioning system, which is usually arranged on the rear side of the instrument panel in front of the front engine seat or the front seat, is arranged below the kick-up portion of the floor panel below the rear seat, The degree of freedom in layout can be secured in the space in the engine compartment and the front of the vehicle compartment, and the layout around the instrument panel can be improved. In particular, the front seat occupant's feet can be widened. The engine power is transmitted via a drive shaft, that is, a propeller shaft, to an auxiliary machine, an air conditioning system, a transmission, etc. arranged below the rear seat. Conventionally, when transmitting power to the rear wheels in the front engine, it is necessary to transmit the power via the propeller shaft. Therefore, the present invention can effectively utilize the existing configuration.

In particular, the air conditioning system is arranged under the rear seat, and the temperature is adjusted from this position, and the purified air is distributed and introduced into various parts of the vehicle through ducts. Since this position is close to the center of the vehicle, air can be distributed easily, and the air duct, which conventionally required a large space in front of the front seat occupant, can be eliminated. As a result, the configuration of the instrument panel, which is largely overhanging in front of the front seat occupant, can be refreshed and made compact.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Referring to FIGS. 1 to 3, there is shown an auxiliary machine arrangement structure for a vehicle according to an exemplary embodiment of the present invention. The vehicle 1 according to this embodiment has two front seats 2 and 2
A four-passenger vehicle equipped with two rear seats 3, and an instrument panel 5 forming a front wall of a passenger compartment 4 extends in a lateral direction of the vehicle 1 in front of an occupant of a front seat 2. A steering column 6 is provided so as to project backward from the instrument panel 5 and licks upward, and a steering wheel 7 is provided at the tip of the steering column 6 to form a steering device. Instrument panel 5
A display portion 8 of the instrument is located on the upper side, and further on the front side, a lower end of a windshield 10 having a cowl box 9 is supported. A hood 11 is arranged in front of the windshield 10 so as to be substantially continuous,
The space between the front wheels 12 below the engine room 1
Make up 3. Below the cowl box 9, a dash panel 14 that partitions the vehicle compartment 4 and the engine compartment 13 is provided. The engine room 13 has a vertically installed engine 1
5, a radiator 16 is arranged in front of the engine 15, and a cooler condenser 17 is arranged further in front of the radiator 16. A front bumper 18 is disposed in front of the condenser 17 for the cooler so as to extend in the lateral direction, and constitutes a front end portion of the vehicle 1. The lower portion of the passenger compartment 4 is defined by a floor panel 19, and the floor panel 19
A tunnel portion 20 is provided at the central portion of the so as to project from the general floor surface and extend in the front-rear direction. Tunnel section 20
Inside, a propeller shaft 21 that transmits the power from the engine 15 to the rear wheels is provided. Floor panel 19
Below the rear seat 3 at the rear, a so-called kick-up portion 22 having a level higher than that of the floor panel 19 at the front of the passenger compartment is provided. In the configuration of this example, the transmission 23 is disposed below the kick-up portion 22, and the differential 24 is provided at the rear of the transmission 23. The engine driving force distributed by the differential 24 is used for the rear wheels. It is adapted to be transmitted to the rear wheel 26 via the drive shaft 25.

A trunk room 27 is formed at the rear of the rear seat 3 at the rear of the vehicle, and a spare tire 28 is arranged below the trunk room 27. A rear bumper 29 is located at the rear of the level of the spare tire 28. The rear wheel is supported by a rear suspension device including three lateral links 30, 31, 32. 2 and 3
As shown in FIG. 3, the air conditioning system includes a blower 33, an evaporator 34, and a heater core 35, and the blower 33 is arranged in the space on the right side of the transmission 23 and inside the right rear wheel 26 of the vehicle 1 at substantially the same level. , The evaporator 34, and the heater core 34 are arranged in the space on the left side of the transmission 23 at substantially the same level as the transmission 23. Air is introduced into the blower 33 from an intake duct 36. The intake duct 36 extends upward and rearward beyond the floor panel 19 from the blower 33, and extends above the rear portion of the right rear wheel 26. It has a suction port 37 that opens at a position, and air is introduced from this suction port 37 to the blower 33 below the floor panel 19. Referring to FIGS. 4 and 5 together, a perspective view and a system diagram of the layout of the air conditioning duct are shown. The air from the blower 33 is sent into the main duct 38 extending laterally from the left side of the blower 33. The suction port is a suction port 37 for introducing outside air.
It has a suction port 37b for circulating a and internal air, and can be switched by a switching damper 39.

The main duct 38 bends forward near the left rear wheel 26 and extends forward. In this case, the main duct 3
8 extends above the transmission 23 to the left, and to the transmission 23 on the left side is an evaporator 34.
The heater core 35 is housed inside to allow the circulating air to exchange heat and adjust the temperature to a desired temperature. After that, the main duct 38 is bent forward as described above, and extends on the left side of the tunnel portion 20 substantially in parallel with this. A rear seat duct 40 that branches off at the side portion of the rear seat 3 is provided. The rear seat duct 40 extends from the main duct 38 to both the left and right sides, and the side of the rear seat occupant is closed upward in the panel structure. A vent 41 that blows conditioned air inward from the side of the upper half of the rear seat occupant is provided at the upper end. A switching damper 42 is provided at the branch portion. The main duct 38 extends from the front side of the branch point of the rear seat duct 40 to the right side in the lateral direction, and is further divided into two slightly behind the front seat 2.
As a result, it is possible to avoid interference with the fuel tank 43 located in front of it. The right duct 44 of the split duct extends further from the lower side of the propeller shaft 21 to the right side, and extends forward along the right side of the propeller shaft 21. The other duct 45 of the split ducts, namely the left duct, extends forward on the left side of the propeller shaft 21.

The left and right ducts branch at the rear of the front seat 2, and the right duct 44 has a front side duct 46 branching to the right. The front side duct 46 extends to the right and extends to the center pillar 47. Reaching the lower part of the center pillar 47 and extending upward inside the closed pillar panel structure of the center pillar 47, and connecting to front side vents 48a, 48b having openings so as to blow out to the upper part of the front seat occupant. Similarly, the left-side duct also branches into the left-side front side duct, and has vents 51a and 51b that extend upward inside the left-side center pillar 47 and blow air to the upper portion of the passenger seat occupant. Furthermore, the left duct 44 and the right duct 45 have a duct 50 that branches off slightly at the front side, and blow out holes 49a, 4a, 4a that blow out in the front-back direction on the floor surface, that is, at the feet of the occupant.
9b. It extends forward and reaches the lower portion of the instrument panel 4, and further extends upward to communicate with a defroster 52 that removes the cloudy windshield 9. In this case, the left and right ducts 44 and 45 communicate with one defroster duct 53. The defroster duct 53 extends laterally along the inner surface of the lower end of the windshield 9, and is provided with a center defroster 52a that blows out to the front part of the driver and the assistant and a side defroster opening 52b that blows out from both sides. ing.

In the conventional structure, the front seat occupant is provided with a center vent and a side vent in front of the occupant, and air is blown toward the occupant from this, but this structure is abolished. did. As a result, it is not necessary to take a space for a duct in front of the front seat occupant, and the layout of the rear surface of the instrument panel 4 can be made compact. The defroster described above can be used to blow air to the occupants, and the side vents 4 are attached to the center pillar 47.
Since the air can be ejected to the occupant by providing the parts 8 and 51, the cooling and heating effect on the occupant does not decrease. As described above, in this embodiment, since the air conditioning system is arranged below the kick-up portion 22 of the rear seat 3, the air conditioning system of the conventional structure on the rear side of the instrument panel 4 shown by the hatched portion in FIG. 1 is used. Since it is no longer necessary to secure the arrangement area of, the structure of this portion can be formed compactly. Referring to FIGS. 6 to 12, there is shown a lower body structure of the rear portion of the vehicle according to the present embodiment, particularly around the transmission 23. As shown in FIG. 9, the transmission 2
3 includes a torque converter 55 connected to the rear end of the propeller shaft 21, and a parallel shaft type transmission gear mechanism 56 provided on the output side of the torque converter 55. A rear differential device 24 is connected to the output side of the transmission 23 so that power can be transmitted.

The structure and operation of the transmission 23 and the rear differential device 24 are not different from those of the conventionally known device, and since they do not constitute the feature of the present invention, their detailed description will not be given in this document. However, in the present invention, a flywheel 58 is provided at the output end of the propeller shaft 21, and a starter 61 having a gear 60 that meshes with a gear 59 around the flywheel 58 is provided. Further, a rubber coupling 62 is provided between the propeller shaft 21 and the flywheel 58, and the transmission 23 and the propeller shaft 21 are connected via the rubber coupling 62 so that power can be transmitted. Further, a pulley 63 is provided near the transmission 23 of the rubber coupling 62.
As shown in FIG. 1, this pulley 63 is
The drive pulley 66 of the air-conditioning compressor 65 and the drive pulley 68 of the alternator 67 are connected so that power can be transmitted. Further, referring also to FIG. 12, the air conditioning compressor 65 and the alternator 67 are fixed by a bracket 70 supported by a clutch cover 69 provided so as to cover the front end side of the torque converter 55.

The clutch cover 69 and the bearing 71
The drive shaft 72 is rotatably supported via.
Further, the alternator 67 and the air-conditioning compressor 65 are integrally connected to the clutch cover 69 via the bracket 73, and are also connected to each other by the stay 74. As a result, the transmission 23 including the alternator 67, the air conditioning compressor 65, and the clutch cover 69 is unitized, so that the assembling work can be streamlined. As described above, the transmission 23 of this example is arranged in the space below the kick-up portion 22 of the floor panel 19, and is supported on the vehicle body side by the two support members 75 and 76, that is, the transaxle members from below. There is. Two transaxle members are provided in parallel so as to be laterally extended so as to be spaced apart from each other in the front-rear direction. Both ends of the transaxle member extend in both front-rear directions of the vehicle in the front-rear direction. It is connected to the side sill or the rear side member 77. The transaxle members 75 and 76 having a channel-shaped cross section are bent in a U-shape in the central portion, and the transmission 23 is supported by the U-shaped recess. In this case, as shown in FIG. 10, a mount bracket 78 in which an elastic material such as rubber is interposed is provided between the transmission case 77 and the support portion of the transaxle member, and both mount brackets 78. Are connected through. Further, a mounting bracket 80 is provided at a rear portion of the differential case 79 of the rear differential device 24 which is configured integrally with the transmission 23, and an elastic member 81 is interposed via the bracket 80 to be coupled to the transaxle members 75 and 76. ing. That is, the transmission 23 and the rear differential device 24 are attached to the vehicle body side via an elastic member.

The air-conditioning duct has an undercover 8 supported by transaxle members 75 and 76 so as to cover the lower part and front and rear of the undercover 8.
The upper part of 1 is supported on the lower surface of the floor panel 19.

[0016]

As described above, according to the present invention, in the vehicle of the front engine type, the air conditioning system and the accessories are arranged in the space below the rear seat.
The layout of the engine compartment and the space in front of the vehicle compartment can be made compact. In addition, it is possible to secure a wide space in front of the front seat occupant.

[Brief description of drawings]

FIG. 1 is a side sectional view showing the inside and the lower portion of a vehicle according to the present invention,

FIG. 2 is a plan view showing the inside of the vehicle shown in FIG.

FIG. 3 is a sectional view of the vehicle of FIG.

FIG. 4 is a perspective view showing a layout of an air conditioning duct of a vehicle according to the present invention,

FIG. 5 is a system diagram of an air conditioning duct,

FIG. 6 is a plan view of the lower body structure of the rear part of the vehicle,

FIG. 7 is an elevation view of a lower body structure at the rear of the vehicle,

FIG. 8 is a perspective view around the transmission at the rear of the vehicle,

FIG. 9 is a partial cross-sectional view showing a connection relationship between accessories and devices around a transmission arranged at a rear portion of a vehicle,

FIG. 10 is a perspective view showing a supporting state of the transmission,

FIG. 11 is a perspective view showing an arrangement state of accessories around the transmission;

FIG. 12 is a perspective view showing a connection state of auxiliary equipment at a front end portion of a transmission.

[Explanation of symbols]

1 vehicle, 4 instrument panel, 5 steering column, 12 front wheels, 13 engine room, 14
Engine, 19 floor panel, 23 transmission, 26 rear wheel, 33 blower, 34 evaporator, 35 heater core, 38 main duct, 55, torque converter.

Claims (9)

[Claims] 1. An engine arranged in a front portion of a vehicle, an auxiliary machine arranged in a lower space of a floor panel below a rear seat of the vehicle, and a drive shaft extending in a front-rear direction of the vehicle and transmitting power from the engine. And the auxiliary machine is driven by engine power transmitted through the drive shaft. 2. The vehicle according to claim 1, further comprising a transmission arranged in a space below a floor panel below a rear seat, wherein the drive shaft is connected to the transmission in a power-transmittable manner. Auxiliary equipment arrangement structure. 3. The auxiliary equipment arrangement structure for a vehicle according to claim 2, wherein the auxiliary equipment is arranged laterally of the transmission. 4. The auxiliary equipment arrangement structure for a vehicle according to claim 2, wherein the auxiliary equipment and the transmission are unitized. 5. The auxiliary equipment arrangement structure for a vehicle according to claim 1, wherein the auxiliary equipment is an air conditioning compressor. 6. The auxiliary equipment arrangement structure for a vehicle according to claim 1, wherein the auxiliary equipment is an alternator, an oil pump, or a starter. 7. An air conditioning system including at least one of a blower, an evaporator and a heater core arranged in a space below the floor panel below the rear seat, and an air conditioning duct for introducing air from the air conditioning system into a passenger compartment. A vehicle auxiliary equipment arrangement structure, wherein a part of the air conditioning duct is arranged in a space below the floor panel. 8. The auxiliary equipment arrangement structure for a vehicle according to claim 7, wherein the air conditioning system is arranged in a space below the kick-up portion of the floor panel. 9. A vehicle auxiliary equipment arrangement structure according to claim 7, wherein the air conditioning system, the auxiliary equipment, and the transmission are unitized.