JP2016215968A - Seat structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a space for arranging a switch which detects a relative turn position change of a seatback part with respect to a seat part, in a seat structure for an automobile which is supported to a vehicle body frame while a seatback frame in which the seat part is arranged on a seat frame supported by the vehicle body frame, and which supports the seatback part is switchable to a lodging state that the seatback part is stacked on the seat part, and an erecting state that the seatback part is erected at a rear side of the seat part.SOLUTION: A support stay 73 having a support plate part 73a which is erected at an upper part is arranged at a vehicle body frame F in a position corresponding to a rear part of a seat 67, an attachment stay 78 arranged at a seatback frame is supported to the support plate part 73a via a pivot 79 so as to be turnable, and a rotary switch 84 which detects relative turn positions of the support stay 73 and the attachment stay 78 is arranged coaxial with the pivot 79 so as to penetrate the pivot 79.SELECTED DRAWING: Figure 11

Description

  The present invention provides a seat seat portion provided on a seat frame supported by a vehicle body frame, and a seat back frame supporting the seat back portion is in a lying state in which the seat back portion is stacked on the seat seat portion and the seat. The present invention relates to a seat structure for riding that is supported by the vehicle body frame so as to be able to switch a standing state in which a back portion is raised behind the seat portion.

  Such a seat structure for boarding is known by patent documents 1 grade.

Actual registration No. 2557849

  In the one disclosed in Patent Document 1, a support shaft and a bracket are provided on the seat seat portion side, and a switching mode of a seat switch attached to the bracket on a seat back portion that is rotatably supported by the support shaft. There is provided a contact switching member for changing. Therefore, it is necessary to secure a space for arranging the switch around the support shaft, and reducing the space is an issue.

  The present invention has been made in view of such circumstances, and provides a seat structure for a ride that can reduce a space for arranging a switch for detecting a change in a relative rotational position of a seat back portion with respect to a seat seat portion. The purpose is to do.

  In order to achieve the above object, the present invention provides a seat seat portion on a seat frame supported by a vehicle body frame, and the seat back frame that supports the seat back portion includes the seat back portion and the seat seat portion. In a seat structure for riding supported by the vehicle body frame so as to be able to be switched between an overlaid state and a standing state in which the seat back portion is raised behind the seat seat portion, a support having a support plate portion standing upward A stay is provided on the vehicle body frame at a position corresponding to a rear portion of the seat seat portion, and an attachment stay provided on the seat back frame is rotatably supported by the support plate portion via a support shaft, A rotary switch that detects the relative rotation position of the support stay and the mounting stay is the same as the support shaft so as to penetrate the support shaft. To be placed in the first feature.

  According to the present invention, in addition to the configuration of the first feature, the rotary switch includes a base member, an inner rotary accommodated in the base member so as to rotate together with the mounting stay, the base member, A seal member interposed between the inner rotary members, wherein the base member is supported on the support stay side with a connector portion provided on the base member facing downward. And

  According to the present invention, in addition to the configuration of the second feature, the seat frame is mounted on a floor portion of a loading platform provided at a rear portion of the vehicle body frame included in the rough road traveling vehicle and opened upward. Three features.

  In the present invention, in addition to the configuration of the second feature, the rotary switch is disposed between the support plate portion of the support stay and the mounting stay disposed on the inner side in the vehicle width direction of the support plate portion. This is a fourth feature.

  Furthermore, the present invention provides a seat belt for restraining an occupant sitting on the seat seat, wherein the rotary switch is arranged on one side in the vehicle width direction of the seat seat in addition to the configuration of the third or fourth feature. A buckle for detachably engaging the tongue plate provided on the seat is provided on one side in the vehicle width direction of the seat seat portion, and a seat belt switch for detecting the seat belt is provided on the buckle. The fifth feature.

  According to the first feature of the present invention, the mounting stay provided on the seat back frame is rotatably supported by the support plate portion of the support stay fixed to the vehicle body frame via the support shaft. Since the rotary switch that detects the relative rotation position of the mounting stay is arranged coaxially with the support shaft, it is placed around the support shaft to arrange the switch that detects the change in the relative rotation position of the seat back relative to the seat seat. The space to be secured can be reduced.

  According to the second feature of the present invention, the space between the base member of the rotary switch and the inner rotary member is sealed with the seal member, and the connector portion provided on the base member faces downward. Infiltration can be suppressed as much as possible, and waterproofness can be improved.

  According to the third aspect of the present invention, the seat seat frame is mounted on the floor of the loading platform provided at the rear of the vehicle body frame included in the wasteland traveling vehicle, and the upper portion of the loading platform is opened to thereby Even if a large amount of water accumulates, the rotary switch structure with improved waterproofness can prevent water from entering the rotary switch.

  According to the fourth feature of the present invention, since the rotary switch is arranged between the support plate portion of the support stay and the mounting stay arranged in the vehicle width direction, the rotary switch is protected without the need for providing a special protection structure. In this way, the protection structure can be simplified.

  Furthermore, according to the fifth feature of the present invention, the rotary switch and the seat belt switch provided on the buckle are arranged on one side in the vehicle width direction of the seat seat portion. Wiring workability can be improved and maintenance can be improved.

It is a side view of a four-wheel drive vehicle for wasteland travel. FIG. 2 is a view taken in the direction of arrow 2 in FIG. FIG. 5 is a perspective view of the vicinity of a riding seat in a state where a seat seat is in an open position. It is a longitudinal cross-sectional view of the vicinity of the riding seat in a state where the seat seat is in the open position. It is a disassembled perspective view of a seat seat part. It is a vertical side view which shows sequentially the situation at the time of returning a seat seat part to a closed position. It is a 7-7 line arrow directional view of FIG. It is a perspective view of a passenger seat. It is the perspective view which abbreviate | omitted the cover member and was seen from the 9 arrow direction of FIG. It is a longitudinal cross-sectional view which shows the structure of a rotary switch, Comprising: It is sectional drawing which follows the 10-10 line of FIG. It is the 11-11 line sectional view of FIG.

  Embodiments of the present invention will be described with reference to the accompanying FIGS. In the following description, front / rear, left / right, and upper / lower refer to directions viewed from a passenger who rides on a four-wheel drive vehicle for traveling on a rough terrain.

  First, in FIGS. 1 and 2, a pair of left and right front wheels WF are suspended at the front part of a body frame F of a four-wheel drive vehicle for running on a wasteland, and a pair of left and right rear wheels WR are suspended at the rear part of the body frame F. Suspended.

  The vehicle body frame F includes a pair of left and right lower frames 11 extending in the front-rear direction, a pair of left and right center standing frames 12 rising upward from a middle portion in the front-rear direction of the lower frames 11, and upper ends of the center standing frames 12. A pair of left and right front side frames 13 that extend forward and extend forward and downward from the middle of the lower frame 11 and extend from the upper end of the center standing frame 12 to the rear and extend downward from the middle. Intermediate bending of a pair of left and right front side frames 13, a pair of left and right rear side frames 14 connected to the rear of the lower frame 11, an upper center cross frame 15 connecting the upper ends of the pair of left and right center standing frames 12, and a pair of left and right front side frames 13. Front cross frame 16 connecting the parts, And an upper rear cross frame 17 for connecting the intermediate bent portion of the rear side frames 14.

  The pair of left and right center standing frames 12 and the pair of left and right front side frames 13 constitute an outer part of the front riding space FS for the driver and the assistant, and allow the driver and the assistant to get on. A front floor 19 disposed in front of the center standing frame 12 is supported by the front portion of the vehicle body frame F. Further, the pair of left and right center standing frames 12 and the pair of left and right rear side frames 14 constitute an outer part of the rear passenger space RS for passengers, and the center standing frame 12 is disposed at the rear of the vehicle body frame F. The loading platform 20 disposed behind the vehicle is supported.

  In the front passenger space FS for the driver and the assistant, a driver seat and a passenger seat provided on the front floor 19 supported by the front portion of the body frame F and spaced apart in the vehicle width direction, and driving A bench seat type riding seat 21 integrally having an auxiliary seat arranged between a passenger seat and a passenger seat is arranged according to the present invention. In this embodiment, the left side portion of the riding seat 21 is A driver's seat is determined corresponding to the steering handle 25 disposed in front of the steering wheel.

  A front cover 26 is supported on the front portion of the vehicle body frame F so as to cover the pair of left and right front wheels WF from above. Further, a front side cover 28 that covers the rear lower part of the front riding space FS from the side, a pair of left and right center side covers 29 that covers the front lower part of the rear riding space RS from the side, and the rear riding space RS A pair of left and right rear side covers 30 that cover the rear lower portion from the side are attached to the vehicle body frame F. A pair of left and right front doors 33 that can open and close a front entrance 31 formed between the front side cover 28 and the front cover 26 are formed by a pair of upper and lower hinge portions 35 at the left and right rear portions of the front cover 26. A rear door 34 that can be opened and closed and that can open and close a rear entrance 32 formed between the center side cover 29 and the rear side cover 30 is provided at the front of the rear side cover 30. Each is supported so as to be rotatable at 36.

  The vehicle body frame F supports an engine E disposed below a center portion in the vehicle width direction of the riding seat 21, and a front wheel drive shaft 38 for driving a pair of left and right front wheels WF is provided on the engine frame F. A rear wheel drive shaft 39 that extends forward from the engine body EB of E and drives a pair of left and right rear wheels WR extends rearward from the engine body EB.

  3 and 4 together, the riding seat 21 is a seat seat 22 and a seat fixedly supported by the vehicle body frame F so as to rise upward behind the seat seat 22. And a closed position in which the seat seat portion 22 constituting a part of the riding seat 21 can seat a passenger as shown by the solid line in FIG. 2 and the chain line in FIG. And the open position shown by the solid line in FIG. 3 and FIG.

  The seat support portion 40 that supports the seat seat portion 22 in the closed position from below is configured to stand up from the front floor 19 while allowing the seat seat portion 22 to be attached to and detached from the seat support portion 40. Provided on the body frame F. The seat support portion 40 includes a first opening 43A that opens toward the first maintenance space 41A for performing maintenance around the engine body EB in the engine E, and a right front of the engine body EB. A second opening 43B that opens to face the second maintenance space 41B for performing maintenance of the fuel tank 37 disposed in the housing, and a storage space 42 that stores the battery 45, the control unit 46, and the like are formed. Thus, the storage recess 44 that is open upward is provided, and the seat seat portion 22 has the first maintenance space 41A, the second maintenance space 41B, and the storage space in the closed position. The occupant can be seated while covering at least one (all in this embodiment) of 42 from above. In the first maintenance space 41A, so that the opening of at least one (all in this embodiment) of the second maintenance space 41B and the housing space 42.

  In FIG. 5, the seat seat portion 22 includes a bottom plate 47, a cushion 48 provided on the bottom plate 47, and a top coat 49 that covers the cushion 48 from above. The seat seat portion 22 is provided with a seating sensor 51 that detects the seating state of the passenger on the passenger seat side. In this embodiment, the seat seat portion 22 is sandwiched between the cushion 48 and the top coat 49. The seating sensor 51 is disposed on the passenger seat side so that the passenger sitting on the seat seat portion 22 on the passenger seat side does not feel uncomfortable due to the presence of the seating sensor 51. A seat 50 is sandwiched between the cushion 48 and the top coat 49.

  The rear part of the seat seat part 22 and the intermediate part in the front-rear direction of the seat support part 40 are connected via a pair of metal swing arms 52 arranged at intervals in the vehicle width direction. The swing arm 52 is formed to extend linearly.

  The swing arm 52 has a flat connecting plate portion 52 a at one end thereof, and the connecting plate portion 52 a is rotatably connected to the sheet support portion 40 via a connecting shaft 53. . That is, the swing arm 52 is supported at the intermediate portion in the front-rear direction of the seat support portion 40 such that one end portion of the swing arm 52 can rotate about the connection portion to the seat support portion 40, that is, the connection shaft 53. . The other end of the swing arm 52 is pivotally connected to the rear portion of the bottom plate 47 of the seat seat portion 22 via a shaft 54.

  The pair of swing arms 52 are provided between the rear portion of the seat seat portion 22 and the middle portion in the front-rear direction of the seat support portion 40 at positions corresponding to the driver's seat and the passenger seat, respectively. A sensor cord 55 connected to 51 is wired along the swing arm 52 arranged on the passenger seat side. Moreover, the sensor cord 55 is held by the swing arm 52 on the passenger seat side. In this embodiment, the sensor cord 55 is a clip 56 attached to the swing arm 52 on the passenger seat side. Is retained.

  By the way, the connecting position of the swing arm 52 to the seat seat portion 22 and the seat support portion 40 is such that the front edge portion 22a of the seat seat portion 22 in the open position is the seat support portion 40. It is set so as to be positioned between the instrument panel 57 disposed in front of the seat support portion 40 and supported by the front portion of the vehicle body frame F.

  In addition, the front edge portion 22a of the seat seat portion 22 in the open position is disposed at a position spaced upward from the upper surface of the front floor 19, as shown in FIG. The seat seat 22 at the position is supported by the swing arm 52 and the front surface 40 a of the seat support 40.

  Referring also to FIG. 6, the connecting plate portion 52 a at one end of the swing arm 52 penetrates the connecting shaft 53 provided at the intermediate portion in the front-rear direction of the seat support portion 40. A long hole 58 extending long in the longitudinal direction of the swing arm 52 is provided so as to extend long in the front-rear direction when the seat seat portion 22 is in the closed position.

  Further, a pair of fitting holes 59 spaced in the vehicle width direction are provided at the rear part of the seat support part 40 so as to open forward, and at the rear part of the seat seat part 22, A pair of fitting protrusions 60 that can be fitted into the fitting holes 59 are provided. In this embodiment, the pair of fitting holes 59 are formed in different shapes depending on the relationship with the surroundings of the fitting holes 59.

  Further, at two positions spaced apart in the vehicle width direction of the seat support portion 40, there are provided regulating protrusions 61 projecting upward, and the bottom plate 47 of the seat seat portion 22 is provided with the seat seat portion. In the state where 22 is in the closed position, integral regulating members 63 each having a regulating hole 62 into which the regulating projection 61 is fitted are fixed.

  In the state in which the seat seat portion 22 is moved from the open position to the closed position and approaches the closed position as indicated by the solid line from the position indicated by the chain line, first, as shown in FIG. As shown in FIG. 6B, the seat protrusion 22 is slid rearward in the front-rear direction until the connecting shaft 53 reaches the front part of the long hole 58 as shown in FIG. The seat is fitted into the fitting hole 59 and the seat seat portion 22 is rotated to the closed position as shown in FIG. The seat 22 is held in the closed position.

  In addition, an elastic member 64 that is in contact with the upper surface of the seat support portion 40 at the closed position is attached to the lower surface of the front portion of the bottom plate 47 in the seat seat portion 22.

  Referring to FIGS. 7 and 8 together, a pair of left and right passenger seats 66 disposed in the rear riding space RS is provided on the loading platform 20, and these passenger seats 66 are A seat seat 67 on which the passenger sits, a first seat back portion 68 for supporting a lower back of the passenger sitting on the seat seat 67, and an upper back of the passenger sitting on the seat seat 67 And a second seat back portion 69 disposed above the first seat back portion 68 so as to support each other.

  The loading platform 20 is configured to be supported by the rear portion of the vehicle body frame F and open upward. A seat frame 70 is attached to the floor portion 20a of the loading platform 20, and the seat frame. The seat seat 67 is provided on 70, and in this embodiment, the seat frame 70 is mounted on a frame support frame 72 provided on the floor plate 20a and rising upward.

  Further, the first seat back part 68 and the second seat back part 69 which are arranged at intervals in the vertical direction are supported by a seat back frame 71, and the seat back frame 71 has the first seat back frame 71. A lying state in which the seat back portion 68 and the second seat back portion 69 are overlaid on the seat seat portion 67, and the first seat back portion 68 and the second seat back portion 69 are connected to the seat seat portion 67. It is supported by the vehicle body frame F so as to be able to switch between an upright state in which it stands up rearward.

  With reference to FIGS. 9 to 11, a stay support portion 82 is provided at the rear portion of the vehicle body frame F at a portion corresponding to the rear portion of the seat seat portion 67. A support stay 73 having a support plate portion 73 a standing upright is fixed by bolts 74, nuts 75, and rivets 76. The support stay 73 is disposed at a position corresponding to the rear portion of the seat seat portion 67 on both sides in the vehicle width direction of the seat seat portion 67.

  Further, on both sides in the vehicle width direction of the seat back frame 71, side plate portions 77 protruding forward are integrally provided so as to be disposed on the outer side in the vehicle width direction of the support plate portion 73a, respectively. The back frame 71 is provided with a mounting stay 78 that is integrally connected to the side plate portion 77 and is disposed on the inside of the support stay 73 in the vehicle width direction of the support plate portion 73a.

  The side plate portions 77 and the mounting stays 78 arranged on both sides of the seat seat portion 67 in the vehicle width direction are rotatable with respect to the support plate portion 73a of the support stay 73 via bolts 79 as support shafts. Supported. A boss member 80 is fixed to the inner surface of the support plate portion 73a, and the bolt 79 is inserted into the side plate portion 77, the support plate portion 73a, the boss member 80, and the mounting stay 78, and the mounting stay is fixed. An end portion of the bolt 79 projecting inward in the vehicle width direction from 78 is screwed into a nut 81 fixed to the mounting stay 78.

  The relative rotation position of the support stay 73 and the mounting stay 78 is detected by a rotary switch 84. The rotary switch 84 is one side in the vehicle width direction of the seat seat portion 67, in this embodiment, It is arranged coaxially with the bolt 79 so as to penetrate the bolt 79 outside the seat seat portion 67 in the vehicle width direction, and is arranged between the support plate portion 73a and the mounting stay 78 in the vehicle width direction. Is done.

  Cover members 85 and 86 that cover the support plate portion 73a, the side plate portion 77, and the mounting stay 78 are attached to both sides of the seat back frame 71 in the vehicle width direction. The cover member 85 disposed on the outer side in the width direction is formed so as to cover the rotary switch 84 as well.

  Referring to FIG. 11, the rotary switch 84 includes a base member 87 and an inner rotary 88 accommodated in the base member 87 so as to rotate together with the mounting stay 78.

  The base member 87 is sandwiched between the mounting stay 78 and the base member 80, and the end of the base member 87 on the support plate portion 73 a side is fitted into the base member 80. A positioning recess 89 opened downward is formed in the lower part of the base member 87, and a positioning rod 90 inserted through the positioning recess 89 is implanted in the support plate 73a. Therefore, by inserting the positioning rod 90 into the positioning recess 89, the base member 87 is positioned so as not to be able to rotate relative to the bolt 79, and is supported on the support plate portion 73a side of the support stay 73. In this positioning state, a connector portion 87a that faces downward is provided integrally with the base member 87.

  The inner rotary 88 is accommodated in the base member 87 with annular seal members 91 and 92 interposed between the inner rotary 88 and an engaging projection 88a provided integrally with the inner rotary 88. However, the inner rotary 88 operates together with the mounting stay 78, that is, the seat back frame 71, by being inserted into and engaged with a locking hole 93 provided in the mounting stay 78.

  As the inner rotary 88 rotates about the axis of the bolt 79 between the base member 87 and the inner rotary 88 at a position sandwiched between the pair of seal members 91 and 92 from both sides in the axial direction, A contact mechanism 94 for switching between connection and disconnection is provided, and a plurality of terminals 95 connected to the fixed contact of the contact mechanism 94 are disposed in the connector portion 87a.

  A take-up device 97 for the seat belt 96 for restraining the passenger sitting on the seat seat portion 67 of the passenger seat 66 is provided in a portion near the upper rear cross frame 17 at the upper part of the rear side frame 14. Supported by the stay 98. The seat belt 96 extended from the winding device 97 is sequentially inserted into an upper through anchor 99 and a lower through anchor 100 disposed below the upper through anchor 99.

  The seat belt 96 is inserted into the intermediate tongue plate 101, and an end tongue plate 102 is attached to the front end portion of the seat belt 96. The intermediate tongue plate 101 is detachably engaged with a first buckle 103 disposed inside the seat seat portion 67 in the passenger seat 66 in the vehicle width direction, and the end tongue plate 102 is The second seat buckle 104 disposed on the outer side in the vehicle width direction of the seat seat portion 67 is detachably engaged.

  The first buckle 103 has a distal end of a first support arm 105 whose base end portion is rotatably supported by a support stay 73 via a bolt 107 and a nut 108 on the inner side in the vehicle width direction of the seat seat portion 67. Provided in the section. The second buckle 104 includes a second support arm 106 whose base end portion is rotatably supported by a support stay 73 via a bolt 109 and a nut 110 on the outer side in the vehicle width direction of the seat seat portion 67. Provided at the tip.

  In addition, the second buckle 104 disposed on the outer side in the vehicle width direction of the seat seat portion 67 detects that the end tongue plate 102 is engaged with the second buckle 104, thereby the seat. A seat belt switch 111 configured to detect the wearing of the belt 96 is provided.

  By the way, the conducting wire 113 led out from the connector 112 detachably attached to the connector part 87 a of the rotary switch 84 and the conducting wire 114 led out from the second buckle 104 so as to be connected to the seat belt switch 111 are described. It is gathered and extended forward.

  Next, the operation of the present embodiment will be described. A part of a bench seat type passenger seat 21 that integrally includes a driver seat and a passenger seat and an auxiliary seat disposed between the driver seat and the passenger seat is configured. The seat seat portion 22 to be able to seat an occupant while covering at least one of the first maintenance space 41A, the second maintenance space 41B, and the storage space 42 (all in this embodiment) from above. Displaceable between the closed position and the open position where at least one of the first maintenance space 41A, the second maintenance space 41B, and the storage space 42 (all in this embodiment) is opened. Is supported by the vehicle body frame F. A seat support portion 40 that supports the seat seat portion 22 in the closed position from below is opposed to the seat support portion 40. The seat seat portion 22 is provided on the vehicle body frame F so that the seat seat portion 22 can be attached and detached, and the rear portion of the seat seat portion 22 and the middle portion in the front-rear direction of the seat support portion 40 are connected via a swing arm 52. Therefore, it is possible to avoid the seat seat portion 22 in the open position from projecting greatly above the seat support portion 40 and to be in front of the seat support portion 40, and to displace the seat seat portion 22 to the open position. By doing so, the upper openings of the first maintenance space 41A, the second maintenance space 41B, and the storage space 42 can be greatly opened.

  A seating sensor 51 for detecting the seating state of the occupant on the seat seat 22 is provided on the seat seat 22, and a sensor cord 55 connected to the seating sensor 51 is wired along the swing arm 52. Therefore, it is not necessary to remove the sensor cord 55 when displacing the seat portion 22 to the open position, and the work of removing the sensor cord 55 can be omitted to improve workability.

  Further, since the sensor cord 55 is held by the swing arm 52 via the clip 56, the sensor cord 55 is held by the swing arm 52 when the seat seat portion 22 is displaced to the open position. , Workability can be further increased.

  Further, the front edge portion 22a of the seat seat portion 22 in the open position is positioned between the seat support portion 40 and the instrument panel 57 disposed in front of the seat support portion 40. Since the connecting position of the swing arm 52 to the seat seat portion 22 and the seat support portion 40 is set, the seat seat portion 22 in the open position is arranged using the wide floor portion in front of the riding seat 21. In this way, a large amount of displacement from the closed position to the open position of the seat portion 22 can be secured.

  Moreover, the seat support portion 40 is provided on the vehicle body frame F so as to rise upward from the front floor 19, and the front edge portion 22 a of the seat seat portion 22 in the open position is from the upper surface of the front floor 19. Since the seat seat portion 22 in the open position is supported by the swing arm 52 and the front surface 40a of the seat support portion 40 so as to be disposed at a position spaced apart upward, when in the open position The front edge portion of the seat seat portion 22 does not contact the upper surface of the front floor 19, and the front edge portion 22 a of the seat seat portion 22 can be prevented from becoming dirty due to contact with the front floor 19.

  Further, the swing arm 52 made of metal is formed to extend linearly so as to be able to rotate with the connecting portion 53 of the one end portion of the swing arm 52 to the sheet support portion 40 as a fulcrum. Therefore, when returning the seat portion 22 from the open position to the closed position, the swing seat 52 can turn the seat seat portion 22 in a fan shape to return to the closed position, thereby further improving workability.

  In addition, a long hole 58 that extends long in the front-rear direction in the state where the seat seat 22 is in the closed position is provided at one end of the swing arm 52 at the intermediate part in the front-rear direction of the seat support part 40. And a fitting hole 59 provided at the rear portion of the seat seat portion 22 and provided at the rear portion of the seat support portion 40 and opened forward. Since the mating projection 60 is provided in a projecting manner, the seat seat 22 can be slid in the front-rear direction by the long hole 58 when the seat seat 22 is in the vicinity of the closed position. The fitting projection 60 can be fitted to and released from the fitting hole 59 in the closed position, and the support structure of the seat seat 22 to the seat support 40 in the closed position can be simplified.

  A pair of left and right passenger seats 66 are provided on the rear loading platform 20 of the vehicle body frame F, and the passenger seats 66 are seat seats provided on a seat frame 70 supported by the vehicle body frame F. A first seat back portion 68 that supports the lower portion of the back of the passenger sitting on the seat seat portion 67, and an upper portion of the back of the passenger sitting on the seat seat portion 67. A second seat back portion 69 disposed above the seat back portion 68, and the first and second seat back portions 68 and 69 are supported by a seat back frame 71, and the seat back frame 71 is a lying state in which the first and second seat back portions 68 and 69 are overlaid on the seat seat portion 67, and the first and second seat back portions 68 and 69 are located behind the seat seat portion 67. It is supported by the body frame F as a possible switching of upright state to stand. In addition, a support stay 73 having a support plate portion 73a standing upward is provided on the vehicle body frame F at a position corresponding to the rear portion of the seat seat portion 67, and a mounting stay 78 provided on the seat back frame 71 includes a bolt. A rotary switch 84 that is rotatably supported by the support plate portion 73 a via 79 and detects the relative rotation position of the support stay 73 and the mounting stay 78 penetrates the bolt 79. 79 and the same axis. Therefore, the space to be secured around the bolt 79 can be reduced in order to arrange the rotary switch 84 for detecting the relative rotation position change of the seat back portions 68 and 69 with respect to the seat seat portion 67.

  The rotary switch 84 is interposed between the base member 87, the inner rotary 88 accommodated in the base member 87 so as to rotate together with the mounting stay 78, and the base member 87 and the inner rotary 88. Since the base member 87 is supported on the support stay 73 side with the connector portion 87a provided on the base member 87 facing downward, the inside of the rotary switch 84 is provided. It is possible to suppress water intrusion to the water as much as possible and improve waterproofness.

  Further, since the seat frame 70 is mounted on the floor portion 20a of the loading platform 20 provided at the rear portion of the vehicle body frame F included in the rough road traveling vehicle, the upper portion of the loading platform 20 is opened. Although a large amount of water may accumulate on the loading platform 20, the structure of the rotary switch 84 with improved waterproofness can prevent water from entering the rotary switch 84.

  Further, since the rotary switch 84 is disposed between the support plate portion 73a of the support stay 73 and the mounting stay 78 disposed on the inner side in the vehicle width direction of the support plate portion 73a, a special protective structure is provided. It is possible to simplify the protective structure by protecting the rotary switch 84 without the need to provide the switch.

  Further, the rotary switch 84 is arranged on one side of the seat seat portion 67 in the vehicle width direction, and the end tongue plate 102 provided on the seat belt 96 for restraining the occupant sitting on the seat seat portion 67 can be engaged and disengaged. A second buckle 104 to be engaged with the seat belt 67 is provided on one side in the vehicle width direction of the seat seat portion 67, and a seat belt switch 111 for detecting the wearing of the seat belt 96 is provided on the second buckle 104. Further, the wiring workability of the conducting wires 113 and 114 connected to the rotary switch 84 and the seat belt switch 111 can be improved, and the maintenance property can be improved.

  In addition, the passenger seat 66 has the first and second seat back portions 68 and 69 raised upward from the seat seat portion 67 by the rotary switch 84 and the seat belt switch 111, and the seat belt 96. Can be detected at the same time, and the seat belt wearing state including the passenger seat 66 can be displayed on the meter display unit to improve usability.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

  For example, the present invention can be applied to a front-side riding seat, and can also be applied to detecting opening and closing of a seat seat when the seat seat of the riding seat is a flip-up system. .

20 ... loading platform 20a ... floor 67 ... seat seat 68, 69 ... seat back 70 ... seat frame 71 ... seat back frame 73 ... support stay 73a ... · Support plate portion 78 · · · Mounting stay 79 · · · Support shaft bolt 84 · · · Rotary switch 87 · · · Base member 87a · · · Connector portion 88 · · · Inner rotary 91 and 92 · · · seal Member 96 ... Seat belt 102 ... Tongue plate 104 ... Buckle 111 ... Seat belt switch F ... Body frame

Claims (5)

  A seat seat portion (67) is provided on a seat frame (70) supported by the vehicle body frame (F), and the seat back frame (71) supporting the seat back portions (68, 69) includes the seat back portion. The vehicle body can be switched between a lying state in which (68, 69) is overlaid on the seat seat portion (67) and an upright state in which the seat back portion (68, 69) is raised behind the seat seat portion (67). In the vehicle seat structure supported by the frame (F), the vehicle body frame has a support stay (73) having a support plate portion (73a) rising upward at a position corresponding to the rear portion of the seat seat portion (67). An attachment stay (78) provided in (F) and provided in the seat back frame (71) is rotatably supported by the support plate portion (73a) via a support shaft (79). A rotary switch (84) for detecting a relative rotational position of the support stay (73) and the mounting stay (78) is coaxial with the support shaft (79) so as to penetrate the support shaft (79). A seat structure for riding, which is arranged.   The rotary switch (84) includes a base member (87), an inner rotary (88) accommodated in the base member (87) so as to rotate together with the mounting stay (78), and the base member ( 87) and a seal member (91, 92) interposed between the inner rotary (88), and the base member (87) has a connector portion (87a) provided on the base member (87). The seat structure for riding according to claim 1, wherein the seat structure is supported on the support stay (73) side so as to face downward.   The seat frame (70) is mounted on a floor portion (20a) of a loading platform (20) provided at a rear portion of the vehicle body frame (F) included in a rough road traveling vehicle and opened upward. The riding seat structure according to claim 2.   The rotary switch (84) is disposed between the support plate portion (73a) of the support stay (73) and the mounting stay (78) disposed on the inner side in the vehicle width direction of the support plate portion (73a). The riding seat structure according to claim 2, wherein the riding seat structure is arranged.   A tongue plate provided on a seat belt (96) for restraining an occupant sitting on the seat seat (67), wherein the rotary switch (84) is disposed on one side in the vehicle width direction of the seat seat (67). A buckle (104) for releasably engaging (102) is provided on one side in the vehicle width direction of the seat seat portion (67), and detects a seat belt switch (111) mounted on the seat belt (96). The seat structure for riding according to claim 3 or 4, wherein the buckle (104) is provided.

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