Work machine

1 . A work machine comprising:

a motor;

a housing that houses the motor;

an operating portion movably supported by the housing and operable by an operator between an active position and a non-active position;

a switch housed in the housing and configured to be in an ON state to drive the motor when the operating portion is in the active position and be in an OFF state to stop the motor when the operating portion is in the non-active position; and

a suspension device supported by the housing,

wherein the switch is configured such that when the suspension device is pulled, a pressing force applied to the switch in the ON state is reduced while the operating portion is in the active position, thereby causing the switch to be in the OFF state.

2 . The work machine according to claim 1 ,

wherein the housing has a transmission mechanism that is movable between an initial position and a withdrawn position, and

wherein the transmission mechanism is configured to move from the initial position to the withdrawn position by being pulled via the suspension device to turn the switch in the ON state to the OFF state when in the initial position.

3 . The work machine according to claim 2 further comprising a switching portion movably provided inside the housing, wherein the switching portion is operable by an operator and configured to switch the switch from the OFF state to the ON state by moving from an OFF position to an ON position based on operation of the operating portion by an operator.

4 . The work machine according to claim 3 ,

wherein the switching portion is configured to move from the OFF position to the ON position, thereby changing a relative position of the switch portion with respect to the switch to switch the switch from the OFF state to the ON state, and

wherein the relative position of the switch portion with respect to the switch is changed by pulling the suspension device, and the switch is switched from the ON state to the OFF state.

5 . The work machine according to claim 4 ,

wherein the transmission mechanism, in the initial position, maintains a posture of the switching portion in the ON position, and

wherein the transmission mechanism, in the withdrawn position, releases a posture-maintaining state of the ON position with respect to the switching portion and changes the posture of the switching portion to switch the switch from the ON state to the OFF state.

6 . The work machine according to claim 3 ,

wherein the operating portion is integrally and movably coupled to the switching portion,

wherein the operating portion is engaged with the housing to hold the operating portion and the switching portion in the ON position, and

wherein an engagement state between the operating portion and the housing is released by moving the transmission mechanism from the initial position to the withdrawn position.

7 . The work machine according to claim 6 ,

wherein the switching portion is extended in a first direction,

wherein the operating portion is coupled to one side end of the switching portion in the first direction, and a switch pressure portion extending to one side in a second direction, which is orthogonal to the first direction, is provided on an other side end of the switching portion in the first direction,

wherein the switch pressure portion, in the ON position of the switching portion, presses the switch to the one side in the first direction, and

wherein the transmission mechanism maintains a posture of the switching portion by supporting the other side end of the switching portion in the first direction from the other side in the second direction.

8 . The work machine according to claim 7 ,

wherein the switch is supported by a switch support member,

wherein the switch support member is provided in the housing, movable in the first direction and is interlockably coupled to the transmission mechanism, and

wherein the switch support member moves to one side in the first direction in conjunction with a movement of the transmission mechanism from the initial position to the withdrawn position.

9 . The work machine according to claim 7 ,

wherein the switch pressure portion is coupled to the transmission mechanism by a coupling member, and

wherein the switch pressure portion, as the transmission mechanism moves from the initial position to the withdrawn position, is pulled by the coupling member to the other side in the first direction and displaced to the other side in the first direction.

10 . The work machine according to any of the claim 7 ,

wherein the transmission mechanism is extended in the first direction and coupled to the housing movable in the first direction,

wherein one side portion of the transmission mechanism in the first direction is disposed between the housing and the switching portion inside the housing to support the switching portion, and

wherein a suspension coupling portion configured to be couplable to the suspension device outside the housing is formed on the other side end of the transmission mechanism in the first direction.

11 . The work machine according to claim 10 ,

wherein a stopper portion is provided at said one side end of the transmission mechanism in the first direction, and

wherein the stopper portion, in the withdrawn position of the transmission mechanism, is in contact with the housing, thereby restricting movement of the transmission mechanism toward the withdrawn position.

12 . The work machine according to any of the claim 7 , wherein an inclined surface on a side surface on one side in the second direction is formed on the one side end of the transmission mechanism in the first direction, and the inclined surface is inclined toward the other side in the second direction toward the one side in the first direction.

13 . The work machine according to claim 1 , wherein the suspension device can be pulled to reduce the pressing force on the switch in the ON state to become the OFF state while the operating portion remains in the active position.

14 . The work machine according to claim 1 ,

wherein the operating portion is movable between a non-operated position and an operated position,

wherein while the suspension device is not pulled, when the operating portion is in the non-operated position, the switch is OFF state, and when the operating portion is in the operated position, the switch is ON state, and

wherein, while the suspension device is pulled, the switch is OFF state even when the operating portion is in the operated position.

15 . The work machine according to claim 1 , further comprising:

a switching portion movably provided inside the housing,

wherein the switching portion is configured to move in response to an operation by an operator on the operating portion, thereby changing a relative position of the switching portion with respect to the switch to switch the switch between an OFF state and an ON state, and

wherein, in response to pulling of the suspension device, the relative position of the switching portion with respect to the switch is changed with the operating portion being in the ON position, thereby switching the switch from the ON state to the OFF state.

16 . A work machine comprising:

a motor configured to be switchable between a drive state and a stop state;

a housing that houses the motor; and

a transmission mechanism that is supported by the housing, and connected to a suspension device,

wherein the transmission mechanism:

is configured to be movable from an initial position to a withdrawn position and movable from the withdrawn position to the initial position while being supported by the housing,

allows the motor to switch between the drive state and the stop state when in the initial position and restricts the drive of the motor when in the withdrawn position,

is configured to enter an operating state that restricts driving of the motor by moving from the initial position to the withdrawn position, and

is configured to enter an initial state that allows driving of the motor by moving from the withdrawn position to the initial position when in the operating state.

17 . A work machine comprising:

a motor;

a housing that houses the motor;

a switch housed in the housing and configured to be switchable to an ON state to drive the motor or to an OFF state to stop the motor;

a switching portion operable by an operator and configured to switch the switch from the OFF state to the ON state by moving from an OFF position to an ON position;

an ON-lock mechanism configured to cause the switching portion to enter an ON-lock state in which the switching portion is held in the ON position after the operation to the switching portion is released; and

a suspension device supported by the housing,

wherein the ON-lock mechanism is configured to release the ON-lock state of the switching portion and move the switching portion to the OFF position from the ON position when the suspension device is pulled and the switching portion is in the ON-lock state.