Utility vehicle

1. A utility vehicle comprising:

a body;

a frame supporting the body;

an on-board device mounted on the frame and to which outside air is supplied;

a chamber body having an intake space defined therein, the chamber body being separable in a first direction into a first member on a first side of the chamber body in the first direction and opened to a second side opposite to the first side, and a second member detachably attached to the first member from the second side and opened to the first side, a first one of the first member and the second member having an engaging claw for connecting the first member and the second member, and a second one of the first member and the second member having an engaging portion to be engaged with the engaging claw; and

a connecting pipe connecting the chamber body and the on-board device,

wherein the first member includes a first frame-shaped outer wall portion defining a region on the first side in the intake space, a first tip surface that isforming an end surface at the second side of the first frame-shaped outer wall portion, and a tip protrusion protruding from the first tip surface te-toward the second side,

wherein the second member includes a second frame-shaped outer wall portion defining a region on the second side in the intake space, a second tip surface forming an end surface at the first side of the second frame-shaped outer wall portion, and a tip recess recessed from the second tip surface toward the second side and fittable to the tip protrusion,

wherein the engaging claw has a claw portion extending in a second direction perpendicular to the first direction and towards an interior of the chamber body, and the engaging portion has a recess also extending in the second direction, and

wherein the claw portion of the engaging claw is fitted into the recess of the engaging portion in a direction towards the interior of the chamber body when the engaging claw detachably engages the engaging portion.

2. The utility vehicle according to claim 1 , wherein the tip protrusion and the tip recess are located at an end portion closer to an inner periphery of the first tip surface of the first frame-shaped outer wall portion and to an inner periphery of the second tip tip surface of the second frame-shaped outer wall portion, respectively, than to an outer periphery of the first tip surface of the first frame-shaped outer wall portion and to an outer periphery of the second tip tip surface of the second frame-shaped outer wall portion, respectively.

3. The utility vehicle according to claim 1 , wherein the first one of the first member and the second member has a guide protruding toward to the second one of the first member and the second member and extending along an inner peripheral surface of the second one.

4. The utility vehicle according to claim 3 , wherein the guide is located on the first one of the first member and the second member having the engaging claw, and is adjacent to a circumferential position of the engaging claw on the inner peripheral surface.

5. The utility vehicle according to claim 4 , wherein, the guide is adjacent to the circumferential position of the engaging claw on the inner peripheral surface at both sides of the chamber body.

6. The utility vehicle according to claim 3 , wherein the guide has an inclined slope in a portion facing the inner peripheral surface.

7. The utility vehicle according to claim 1 , wherein:

the chamber body includes an air intake port communicating with the intake space, a connecting port to which the connecting pipe is connected, and an internal flow path connecting the air intake port and the connecting port,

a walled one of the first member and the second member has a flow path wall protruding toward a grooved one of the first member and the second member and defining the internal flow path, and the grooved one of the first member and the second member has a groove portion into which the flow path wall is fitted, and

the groove portion has a pair of ridges and a guide projection higher than the pair of ridges.

8. The utility vehicle according to claim 1 , wherein one of the first member and the second member is fixed to the frame.

9. The utility vehicle according to claim 8 , wherein:

the predetermined first direction is a vehicle width direction,

the one of the first member and the second member is a center one of the first member and the second member located on a center side in the vehicle width direction, and

an outer one of the first member and the second member is located outwardly in the vehicle width direction with respect to the center one of the first member and the second member.

10. The utility vehicle according to claim 9 , wherein the first member has higher rigidity than the second member.

11. The utility vehicle according to claim 9 , wherein the outer one of the first member and the second member is substantially flush with the body.

12. The utility vehicle according to claim 9 , wherein an outer shape of the outer one of the first member and the second member is larger than an outer shape of the center one of the first member and the second member at a mating portion where the first member and the second member are attached to each other in a vehicle side view.

13. The utility vehicle according to claim 1 , wherein an outer width dimension of the tip protrusion is larger than an outer width dimension of the tip recess in a direction orthogonal to the predetermined direction.

14. A chamber body having an intake space defined inside therein and configured to supply outside air taken into the intake space to an on-board device,

the chamber body being separable in a first direction into;

a first member disposed on a first side of the chamber body in the predetermined first direction and opened to a second side opposite to the first side, and

a second member detachably attached to the first member from the second side and opened to the first side,

wherein a first one of the first member and the second member has an engaging claw for connecting the first member and the second member, and a second one of the first member and the second member having an engaging portion to be engaged with the engaging claw,

wherein the first member includes a first frame-shaped outer wall portion defining a region on the first side in the intake space, a first tip surface forming an end surface at the second side of the first frame-shaped outer wall portion, and a tip protrusion protruding from the first tip surface toward the second side, and

wherein the second member includes a second frame-shaped outer wall portion defining a region on the second side in the intake space, a second tip surface forming an end surface at the first side of the second frame-shaped outer wall portion, and a tip recess recessed from the second tip surface toward the second side and fittable to the tip protrusion,

wherein a claw portion of the engaging claw extends in a second direction perpendicular to the first direction and towards an interior of the chamber body, and the engaging portion has a recess also extending in the second direction, and

wherein the claw portion of the engaging claw is fitted into the recess of the engaging portion in a direction towards the interior of the chamber body when the engaging claw detachably engages the engaging portion.

15. A utility vehicle comprising:

a body;

a frame supporting the body;

an on-board device mounted on the frame and to which outside air is supplied;

a chamber body having an intake space defined therein, the chamber body being separable in a predetermined direction into a first member on a first side of the chamber body in the predetermined direction and opened to a second side opposite to the first side, and a second member detachably attached to the first member from the second side and opened to the first side, a first one of the first member and the second member having an engaging claw for connecting the first member and the second member, and a second one of the first member and the second member having an engaging portion to be engaged with the engaging claw; and

a connecting pipe connecting the chamber body and the on-board device,

wherein the first member includes a first frame-shaped outer wall portion defining a region on the first side in the intake space, a first tip surface forming an end surface at the second side of the first frame-shaped outer wall portion, and a tip protrusion protruding from the first tip surface toward the second side,

wherein the second member includes a second frame-shaped outer wall portion defining a region on the second side in the intake space, a second tip surface forming an end surface at the first side of the second frame-shaped outer wall portion, and a tip recess recessed from the second tip surface toward the second side and fittable to the tip protrusion,

wherein the chamber body includes:

an air intake port communicating with the intake space,

a connecting port to which the connecting pipe is connected, and

an internal flow path connecting the air intake port and the connecting port,

wherein a walled one of the first member and the second member has a flow path wall protruding toward a grooved one of the first member and the second member and defining the internal flow path, and a cover of the grooved one of the first member and the second member has a groove portion into which the flow path wall is fitted.

16. The utility vehicle according to claim 15 , wherein the groove portion has a pair of ridges and a guide projection higher than the pair of ridges.

17. The utility vehicle according to claim 1 , wherein the tip protrusion includes a protrusion inner surface flush with an inner peripheral surface of the first frame-shaped outer wall portion, and the tip recess is open towards an inner peripheral surface of the second frame-shaped outer wall portion.