JP2023140613A - Driver's cab structure for vehicle - Google Patents

Abstract

To provide a structure around a driver's seat that enables a driver to sit on the seat smoothly and to leave the seat smoothly.SOLUTION: A seat pedestal 48 for supporting a driver's seat has: a base member 58 on which the driver's seat is placed; and support legs 60L, 60R erected on a floor of a driver's cab and connected to a front end of the base member 58. A staircase through which a driver passes to get on is disposed on a left side of the seat pedestal 48. A front left corner (a support-leg outer corner 70) of the support leg 60L on a staircase side is round-chamfered. This makes a foot of the driver getting on/getting off the vehicle less likely to be caught by the support leg 60L.SELECTED DRAWING: Figure 4

Description

The present invention relates to the structure of a driver's cab of a vehicle, and particularly to the structure around a seat where a driver is seated.

Patent Document 1 listed below shows a vehicle (10) in which a side entrance (60S) is provided on the side surface of the vehicle. The side entrance/exit (60S) is used by occupants (for example, passengers) boarding the low floor section (21A) at the center and rear of the vehicle (10) when getting on and off the vehicle. A seat (50) serving as a driver's seat for a driver (D) is provided in the front raised floor portion (22A). The seat (50) has a frame (50A) fixed on the floor panel (22) of the front raised floor part (22A) and a seat cushion (50B) fixed to the frame (50A) (Paragraph 0047 reference). When the driver (D) gets into the driver's seat, he/she gets on the vehicle through the side entrance/exit (60S), passes around the side of the seat (50) from the rear, and takes a seat on the seat (50). . Note that the symbols in parentheses above are the symbols used in Patent Document 1 below, and are not related to the symbols used in the description of the embodiments of the present application.

Japanese Patent Application Publication No. 2020-131981

In a vehicle where the driver is seated by going around the side of the seat from the rear, the structure around the seat, such as the member to which the seat is fixed, can be adjusted so that the driver can smoothly sit on and exit the seat. The structure will allow for people to leave their seats.

The driver's cabin structure of the vehicle according to the present invention includes a driver seat where the driver sits and a boarding passage arranged on the side of the driver seat, and the driver drives the vehicle through the boarding passage from the rear side of the vehicle. a boarding passage leading to the passenger seat, and a seat pedestal supporting the driver seat, which seat pedestal has support legs disposed corresponding to both ends of the front edge of the driver seat and erected on the floor of the driver's cabin. The corner between the front side of the support leg and the side surface on the boarding aisle side is rounded.

Since the corner between the front surface of the support leg and the side surface on the boarding aisle side is rounded, the driver is less likely to get his or her feet caught on the corner of the support leg when getting on and off, allowing smooth boarding and alighting.

FIG. 1 is a side view schematically showing a schematic configuration of a vehicle according to the present embodiment. FIG. 2 is a side view schematically showing the configuration of a driver's cab. FIG. 3 is a perspective view of the driver's cab seen from the rear. It is a perspective view showing a seat pedestal. It is a top view showing a seat pedestal.

Embodiments of the present invention will be described below with reference to the drawings. In the following description, unless otherwise specified, words expressing relative positions and directions, such as front, rear, left, right, top and bottom, refer to relative positions and directions with respect to the vehicle. In each figure, the direction of arrow FR is forward, the direction of arrow UP is upward, and the direction of arrow LH is leftward.

FIG. 1 is a diagram schematically showing the configuration of main parts of a vehicle 10. As shown in FIG. The vehicle 10 has a structure in which a vehicle body 14 is mounted on a ladder frame 12. The vehicle 10 is a so-called cab-over vehicle in which a driver's cab 16 and a motor compartment 18 below the driver's cab 16 are arranged at its front end. The prime mover room 18 accommodates a prime mover that drives the vehicle, such as an electric motor (not shown). A cabin 20 for passengers to board is arranged behind the driver's cab 16. A boarding/exit 21 is provided on the side of the cabin 20 for passengers to get on and off. The entrance/exit 21 may be provided on the left side of a vehicle destined for a country or region where vehicles are allowed to drive on the left side, or on the right side of the vehicle in a country where it is specified that vehicles drive on the right side. In this vehicle 10, the driver also gets on and off from the entrance 21 in the same way as passengers. The driver's cab floor 22 of the driver's cab 16 is located at a higher position than the cabin floor 24 of the passenger cabin 20. A windshield 26 is arranged in front of the driver's cab 16.

FIG. 2 is a side view schematically showing the general structure of the driver's cab 16. The vehicle body 14 mounted on the ladder frame 12 includes front side members 34 as frame members extending from left to right at the front of the vehicle body 14 in the front-rear direction. The front side member 34 supports the floor panel 36 of the driver's cabin floor 22 at its front portion, and its rear portion slopes downwardly toward the rear, and at its rear end, the front side member 34 supports the floor panel 36 of the driver's cabin floor 22. are combined. The skeletal structure includes a passenger cross member 40 that extends in the left-right direction along the leading edge of the passenger floor 24, and the passenger cross member 40 intersects and connects with the center side member 38. A plurality of lower support columns 42 are arranged upright on the passenger compartment cross member 40 and arranged along the direction in which the passenger compartment cross member 40 extends. The plurality of lower support columns 42 are coupled to a plurality of beams 44 (see FIG. 3) arranged to intersect therewith. The skeleton structure further includes a cab cross member 46 that extends in the left-right direction along the rear edge of the cab floor 22, and the cab cross member 46 intersects and is coupled to the front side member 34. The lower support column 42 and the driver's cab cross member 46 support a seat base 48. More specifically, the lower support 42 supports the seat pedestal 48 via a pedestal support beam 50 that is one of the plurality of beams 44 . A driver seat 52 is placed and fixed on the seat base 48. A staircase 54 leading from the passenger compartment floor 24 to the driver's cabin floor 22 is provided on the side of the driver seat 52.

FIG. 3 is a perspective view of the driver's cab 16 seen from the rear. As described above, the beam 44 is provided to cross the plurality of lower support columns 42 and connect the lower support columns 42 to each other. An upper strut 56 is provided which joins the pedestal support beam 50 and the upper several beams 44 at the bottom, and the upper strut 56 connects at its upper end to a roof frame member (not shown). A staircase 54 is provided to the left of the driver seat 52, and the driver enters the driver's cabin 16 through the stairs. Therefore, the stairs 54 are arranged on the side of the driver's seat, and define a boarding passage that the driver passes through when boarding the driver's cab 16. Note that the stairway 54 is provided to the left of the driver seat 52 in accordance with the specifications for countries with left-hand traffic; in the specifications for countries with right-hand traffic, the stairway 54 is provided to the right of the driver seat 52. good. Further, in a vehicle in which the driver's cabin floor 22 is provided at the same height as the passenger cabin floor 24, a flat passage is provided on the side of the driver's seat 52 instead of the stairs 54.

4 and 5 are diagrams showing a schematic configuration of the seat base 48, with FIG. 4 being a perspective view and FIG. 5 being a plan view. The seat base 48 includes two rod-shaped base members 58 extending in the front-rear direction and arranged parallel to each other, and two rod-shaped base members 58 that are erected on the driver's cab floor 22 and connected to the front end of the base member 58 at the upper end. It has support legs 60 of. Further, the seat base 48 includes a brace 62 that corresponds to the angle formed by the base member 58 and the support leg 60. The base member 58 and the support legs 60 may be prismatic components with a closed cross-section structure. The brace 62 may have a U-shaped cross-section, and the base member 58 and the support legs 60 may be located inside the U-shape. The two base members 58 are connected by a rear connecting plate 64 at the lower rear surface. Further, the two support legs 60 are connected at the front side by a front connecting plate 66. A substantially trapezoidal plate-shaped fixing plate 68 is provided at the lower end of the support leg 60, and the fixing plate 68 is fixed to the driver's cab floor 22, particularly to the driver's cab cross member 46, by fastening elements such as bolts. As a result, the front portion of the seat base 48 is fixed. Further, the rear end portion of the base member 58 is fixed to the pedestal support beam 50 by a fastening element such as a bolt, thereby fixing the rear portion of the seat pedestal 48. The driver seat 52 is placed on the base member 58 of the seat base 48 and fixed to the base member 58 by fastening elements such as bolts.

Compared to the driver seat of a sedan-type passenger car or the like, the seating surface of the driver seat 52 is higher from the floor panel 36 of the driver's cabin floor 22, and the support legs 60 support the driver seat 52 at a higher position. ing. Further, in a driver seat with a high seating surface, the position of the driver's feet is close to the support legs 60 when the driver is seated. When the driver takes a seat on the driver seat 52 from the stairs 54 or leaves the driver seat 52 to the stairs 54, the driver's feet are prevented from interfering with the support legs 60 on the side of the stairs 54. It is desirable to do so.

In the seat pedestal 48 of this embodiment, a corner 70 (hereinafter referred to as a support leg outer corner 70) formed by the front surface of the left support leg 60L and the side surface on the staircase 54 side is rounded. Two adjacent surfaces formed by bending sheet metal are generally connected by a cylindrical surface, but the radius of the round chamfer of the support leg outer corner 70 is sufficiently larger than the radius of the cylindrical surface formed by bending. big. Specifically, the radius of the round chamfer of the support leg outer corner 70 may be 15 mm or more, or may be 20 mm or more. In this embodiment, the radius of the round chamfer is 24.7 mm. Since the support leg outer corners 70 are rounded, it becomes difficult for the driver to get his or her feet on the support legs when getting on or off the vehicle, allowing the driver to get on or off the vehicle smoothly.

In order to share the specifications with a vehicle in which a staircase 54 is provided on the right side of the driver seat 52, the outer corner of the right support leg 60R may be rounded. Furthermore, in order to share the left and right support legs 60L and 60R, in addition to the outer corners of the front surface of the support legs 60, the inner corners may be rounded.

10 vehicle, 14 car body, 16 driver's cabin, 21 entrance, 22 driver's cabin floor, 36 floor panel, 42 lower support, 44 beam, 48 seat pedestal, 50 pedestal support beam, 52 driver seat, 54 stairs (boarding passage) ), 58 base member, 60 support leg, 62 brace, 64 rear connection plate, 66 front connection plate, 68 fixation plate, 70 support leg outer corner.

Claims (1)

A driver seat where the driver sits,
a boarding passage disposed to the side of the driver seat, through which the driver heads from the rear of the vehicle through the boarding passage to the driver seat;
a seat pedestal supporting the driver seat, the seat pedestal having support legs disposed corresponding to both ends of the front edge of the driver seat and standing upright on the floor of the driver's cabin;
Equipped with
A driver's cab structure for a vehicle, wherein a corner formed by a front surface of the support leg and a side surface on the boarding passage side is rounded.