A lever device comprising: a housing; and a lever unit pivotally coupled to the housing so that the lever unit is pivotal in a plurality of different directions (A, B), wherein the lever unit includes a lever shaft, and a pivot shaft that extends from two opposite sides of the lever shaft in a direction intersecting the lever shaft, wherein the pivot shaft functions as a pivot axis of the lever unit when the lever unit is pivoted in a first direction; and wherein the housing includes a retainer that is configured to accommodate the pivot shaft; the lever device being characterized in that the pivot shaft includes a first guide including four guide walls (33a-33d) that are defined by curved surfaces and lie along a circumference of the same circle when viewed in an axial direction of the pivot shaft, wherein two (33a, 33c) of the guide walls (33a-33d) extend at one side of the lever shaft as opposing walls defined by concentric arcuate surfaces and the other two (33b, 33d) of the guide walls (33a-33d) extend at the other side of the lever shaft as opposing walls defined by concentric arcuate surfaces, and the first guide is configured to slide on the retainer when the lever unit is pivoted in the first direction to permit movement of the lever unit, and a second guide including two guide walls (34a, 34b) as opposing walls that connect the four guide walls (33a-33d) of the first guide, wherein the two guide walls (34a, 34b) of the second guide are parts of a spherical surface centering on a pivot fulcrum point of the lever unit and are defined by arcuate surfaces in a cross-sectional view taken along the axial direction, and the second guide is configured to slide on the retainer when the lever unit is operated in a second direction to permit movement of the lever unit. a housing; and a lever unit pivotally coupled to the housing so that the lever unit is pivotal in a plurality of different directions (A, B), wherein the lever unit includes a lever shaft, and a pivot shaft that extends from two opposite sides of the lever shaft in a direction intersecting the lever shaft, wherein the pivot shaft functions as a pivot axis of the lever unit when the lever unit is pivoted in a first direction; and a lever shaft, and a pivot shaft that extends from two opposite sides of the lever shaft in a direction intersecting the lever shaft, wherein the pivot shaft functions as a pivot axis of the lever unit when the lever unit is pivoted in a first direction; and wherein the housing includes a retainer that is configured to accommodate the pivot shaft; the lever device being characterized in that the pivot shaft includes a first guide including four guide walls (33a-33d) that are defined by curved surfaces and lie along a circumference of the same circle when viewed in an axial direction of the pivot shaft, wherein two (33a, 33c) of the guide walls (33a-33d) extend at one side of the lever shaft as opposing walls defined by concentric arcuate surfaces and the other two (33b, 33d) of the guide walls (33a-33d) extend at the other side of the lever shaft as opposing walls defined by concentric arcuate surfaces, and the first guide is configured to slide on the retainer when the lever unit is pivoted in the first direction to permit movement of the lever unit, and a second guide including two guide walls (34a, 34b) as opposing walls that connect the four guide walls (33a-33d) of the first guide, wherein the two guide walls (34a, 34b) of the second guide are parts of a spherical surface centering on a pivot fulcrum point of the lever unit and are defined by arcuate surfaces in a cross-sectional view taken along the axial direction, and the second guide is configured to slide on the retainer when the lever unit is operated in a second direction to permit movement of the lever unit. a first guide including four guide walls (33a-33d) that are defined by curved surfaces and lie along a circumference of the same circle when viewed in an axial direction of the pivot shaft, wherein two (33a, 33c) of the guide walls (33a-33d) extend at one side of the lever shaft as opposing walls defined by concentric arcuate surfaces and the other two (33b, 33d) of the guide walls (33a-33d) extend at the other side of the lever shaft as opposing walls defined by concentric arcuate surfaces, and the first guide is configured to slide on the retainer when the lever unit is pivoted in the first direction to permit movement of the lever unit, and a second guide including two guide walls (34a, 34b) as opposing walls that connect the four guide walls (33a-33d) of the first guide, wherein the two guide walls (34a, 34b) of the second guide are parts of a spherical surface centering on a pivot fulcrum point of the lever unit and are defined by arcuate surfaces in a cross-sectional view taken along the axial direction, and the second guide is configured to slide on the retainer when the lever unit is operated in a second direction to permit movement of the lever unit.