Pivotal neck razor

1. A pivotal neck razor comprising:

a holder including an end; and

a razor head attached to the holder, wherein

the razor head includes an elastic support body, a connection unit that is continuous with the end of the holder, and a blade assembly that includes blade bodies,

the blade assembly includes a front side from which a blade edge of each of the blade bodies is exposed and a rear side that is opposite to the front side,

the elastic support body is located at the rear side,

the elastic support body includes a support portion that supports the blade assembly and a flexible portion located between the support portion and the connection unit,

the blade assembly is urged by the flexible portion of the elastic support body to be stationary at a neutral position, and

the blade assembly is movable to at least one movement position from the neutral position against an urging force of the flexible portion, wherein

the connection unit and the blade assembly each include a fulcrum portion that supports the blade assembly on the connection unit,

the support portion is one of two support portions that support the blade assembly,

the flexible portion is one of two flexible portions,

one of the two flexible portions is arranged between one of the two support portions and the connection unit,

the other one of the two flexible portions is arranged between the other one of the two support portions and the connection unit,

the blade edge of each of the blade bodies extends in a direction corresponding to a first-second direction,

the two flexible portions are arranged at two sides of the connection unit in the first-second direction,

the blade edges of the blade bodies are arranged in a third-fourth direction that is orthogonal to the first-second direction, and

the fulcrum portion of the connection unit and the fulcrum portion of the blade assembly are located at a first side of the blade edges of all the blade bodies in the third-fourth direction,

wherein the blade assembly moves along a first arc about the fulcrum portion of the connection unit in a vertical plane defined by a fifth-sixth direction and the third-fourth direction and along a second arc about the fulcrum portion of the connection unit in a horizontal plane defined by the first-second direction and the fifth-sixth direction, wherein the fifth-sixth direction is orthogonal to both the third-fourth direction and the first-second direction,

wherein the two support portions and the connection unit are integrally molded, and the two flexible portions and the continuous portions are integrally molded, and

wherein the continuous portions integrally connect the support portion and the connection unit.

2. The pivotal neck razor according to claim 1 , wherein

the connection unit includes a projection located at the rear side of the blade assembly,

the projection projects toward the blade assembly and includes a free end, and

the fulcrum portion of the connection unit is formed on the free end.

3. The pivotal neck razor according to claim 1 , wherein the blade assembly moves in a movement direction along an arc to form an arcuate path between the neutral position and the movement position.

4. The pivotal neck razor according to claim 3 , wherein the fulcrum portion of the connection unit is arcuate in correspondence with the movement direction.

5. The pivotal neck razor according to claim 1 , wherein

each of the flexible portions includes an inner end that is adjacent to the connection unit and an outer end that is adjacent to one of the two support portions that is adjacent to the flexible portion,

a space between the two outer ends of the two flexible portions defines a planned space, and

the fulcrum portion of the connection unit and the fulcrum portion of the blade assembly are arranged inside the planned space.

6. The pivotal neck razor according to claim 1 , wherein

the blade assembly is movable in a plurality of movement directions,

the at least one movement position is a plurality of movement positions, and

the blade assembly moves in at least one of the movement directions between the neutral position and each of the movement positions.

7. The pivotal neck razor according to claim 6 , wherein

the movement positions include a first movement position and a second movement position,

the blade assembly moves in a movement direction along the first arc to form a first arcuate path on the vertical plane between the neutral position and the first movement position, and

the blade assembly moves in a movement direction along the second arc to form a second arcuate path on the horizontal plane between the neutral position and the second movement position.

8. The pivotal neck razor according to claim 1 , wherein

each of the flexible portions includes an inner end that is adjacent to the connection unit, an outer end that is adjacent to one of the two support portions that is adjacent to the flexible portion, and an inclined portion located between the inner end and the outer end,

a space between the two outer ends of the two flexible portions defines a planned space, and

the inclined portion of each of the flexible portions is inclined to approach the planned space from the inner end of the flexible portion toward the outer end of the flexible portion.

9. The pivotal neck razor according to claim 8 , wherein a distance between the two flexible portions increases from the inner ends to the outer ends.

10. The pivotal neck razor according to claim 1 , wherein the connection unit of the razor head and the end of the holder each include a coupling portion that couples the connection unit to the end in a removable manner.