Electric work machine
An electric work machine avoids lowering the visibility of a workpiece by an operator. An electric work machine includes a motor, an output unit operable with a rotational force from the motor, a light emitter at least partially surrounding the output unit, an optical member including an outer cylinder located radially outward from the light emitter, and a light transmitter located frontward from the light emitter to allow light emitted from the light emitter to pass through, and a light shield located radially outward from the outer cylinder.
1. An electric work machine, comprising:
a motor;
an output unit operable with a rotational force from the motor;
a light emitter at least partially surrounding the output unit;
an optical member including
an outer cylinder located radially outward from the light emitter, and
a light transmitter located frontward from the light emitter, the light transmitter being configured to allow light emitted from the light emitter to pass through;
a light shield located radially outward from the outer cylinder; and
a first adhesive between an outer circumferential surface of the outer cylinder and an inner circumferential surface of the light shield.
2. The electric work machine according to claim 1 , wherein
the light shield has a lower light transmittance than the optical member.
3. The electric work machine according to claim 1 , wherein
the light shield comprises a synthetic resin.
4. The electric work machine according to claim 1 , wherein
the light shield comprises a polycarbonate resin containing a colored pigment.
5. The electric work machine according to claim 1 , wherein
the light shield is black.
6. The electric work machine according to claim 1 , wherein
the optical member has a groove recessed radially inward from an outer circumferential surface of the optical member, and the groove receives the first adhesive.
7. The electric work machine according to claim 6 , wherein
the light shield includes a protrusion located frontward from the groove, and the protrusion protrudes radially inward from an inner circumferential surface of the light shield.
8. The electric work machine according to claim 7 , wherein
the protrusion has an inner end in contact with the optical member.
9. The electric work machine according to claim 8 , wherein
the protrusion surrounds the optical member, and
the optical member is fitted to the protrusion.
10. The electric work machine according to claim 1 , wherein
the light shield has a front end surrounding an emission surface of the light transmitter.
11. The electric work machine according to claim 1 , wherein
the light shield has a front end aligned with or located frontward from a front end of the light transmitter in a front-rear direction.
12. The electric work machine according to claim 1 , further comprising:
a substrate surrounding the output unit and including a ring portion,
wherein the light emitter includes a light-emitting diode chip on a front surface of the ring portion.
13. The electric work machine according to claim 12 , further comprising:
a second adhesive fixing the substrate and the optical member together.
14. The electric work machine according to claim 13 , wherein
the second adhesive fixes a rear surface of the substrate and an inner circumferential surface of the outer cylinder together.
15. The electric work machine according to claim 13 , wherein
the second adhesive is light-shielding.
16. The electric work machine according to claim 12 , further comprising:
a phosphor covering the light-emitting diode chip.
17. The electric work machine according to claim 12 , wherein
the optical member includes an inner cylinder located radially inward from the ring portion, and
the light transmitter connects a front end of the outer cylinder and a front end of the inner cylinder.
18. The electric work machine according to claim 1 , wherein the output unit includes an anvil strikable by a hammer in a rotation direction.
19. An electric work machine, comprising:
a motor;
an output unit operable with a rotational force from the motor;
a light emitter at least partially surrounding the output unit;
an optical member including
an outer cylinder located radially outward from the light emitter, and
a light transmitter located frontward from the light emitter, the light transmitter being configured to allow light emitted from the light emitter to pass through;
a light shield located radially outward from the outer cylinder;
a substrate surrounding the output unit and including a ring portion; and
an adhesive fixing the substrate and the optical member together,
wherein the light emitter includes a light-emitting diode chip on a front surface of the ring portion.