JP7139747B2 - power supply and vehicle - Google Patents

Description

The present disclosure relates to power supply devices and vehicles.

2. Description of the Related Art Conventionally, cab-over type vehicles are known in which the cab can be tilted with respect to the vehicle body (see, for example, Patent Document 1). In such a vehicle, a lock member for locking the cab to the vehicle body, a tilt member for tilting the cab with respect to the vehicle body, a drive section for driving the tilt member, and a drive circuit for driving the drive section. is provided.

As a drive circuit, for example, a drive circuit 200 as shown in FIG. 1A is known. The drive circuit 200 has an up/down changeover switch 210 , an up changeover switch 220 , a lock changeover switch 230 , a down changeover switch 240 , a drive changeover switch 250 , a drive section 260 , and an alarm section 270 .

The up/down changeover switch 210 selects the connection destination of the supply path 201 to which electric power is supplied, the first energization path 202 which is the path for tilting up the cab, and the second energization path 202 which is the path for tilting the cab down. Switch to either one of the routes 203 and 203 . The up changeover switch 220 is provided in the first energization path 202, and switches to the cutoff state (UP LIMIT side) when the tilt member is at the upper limit position, and switches to the energized state when the tilt member is not at the upper limit position.

The lock changeover switch 230 is provided in the energization path 204 connected to both the first energization path 202 and the second energization path 203 . The lock changeover switch 230 cuts off the conducting path 204 (on the LOCK side) when the cab is locked to the vehicle body by the locking member, and brings the conducting path 204 into the conducting state (released) when the cab is unlocked by the locking member. side).

The descent changeover switch 240 connects either the energization path 205 connected in parallel to the energization path 204 or the energization path 204 to the driving path 206 connected to the drive unit 260 . Specifically, when the tilt member is at the lower limit position, the descent changeover switch 240 switches to a state (DOWN LIMIT side) that electrically connects the energization path 204 and the drive path 206, and when the tilt member is not at the lower limit position, the energization path 205 and drive path 206 are brought into conduction.

The drive changeover switch 250 is provided on the drive path 206 and switches the drive path 206 between a conductive state and a cutoff state. The drive unit 260 raises the tilt member when power is supplied from the first power supply path 202 , and lowers the lowering member when power is supplied from the second power supply path 203 . The alarm unit 270 outputs an alarm when power is supplied to the drive circuit 200 .

Note that FIG. 1A shows an example in which each switch state is a state when the tilt member is lowered.

JP-A-2000-238669

By the way, in some vehicles, even though the cab is locked to the vehicle body, there is a possibility that the switch state, for example, as shown in FIG. This can occur in configurations where the tilt member reaches its lower limit position after the cab has moved to the vehicle body position. Specifically, the switch state in FIG. 1B is the time from when the cab moves to the position of the vehicle body, when the lock changeover switch 230 switches the energization path 204 to the cutoff state, until the tilt member reaches the lower limit position. This occurs when the up/down selector switch 210 is switched to the first energization path 202 during this period.

In this case, even though the cab is locked, a force to raise the cab acts on the cab, so an excessive load is applied to the tilting member and the parts connected to the tilting member, which in turn damages the vehicle. I was afraid. The configuration described in Patent Document 1 does not take into consideration the switching state described above, and therefore has a certain limit as a configuration for preventing damage to the vehicle.

An object of the present disclosure is to provide a power supply device and a vehicle that can prevent the vehicle from being damaged due to tilting of the cab.

A power supply device according to the present disclosure includes:
A power supply device that supplies power to a drive unit that tilts a cab with respect to a vehicle body,
a tilt-up energization path portion supplied with the electric power for tilting up the cab with respect to the vehicle body;
a tilt-down energization path section to which the electric power for tilting down the cab with respect to the vehicle body is supplied;
an up/down switching unit that switches a connection destination of the power supply source to either one of the tilt-up energization path and the tilt-down energization path;
a blocking unit that blocks the tilt-up power supply path when the cab is locked to the vehicle body so that the cab cannot be tilted;
a detour energization prevention unit configured to prevent the electric power for tilting up the cab from bypassing the cutoff unit and being supplied to the driving unit;
Prepare.

A vehicle according to the present disclosure includes:
a tilt member for tilting the cab with respect to the vehicle body;
the driving unit that drives the tilt member;
the power supply device described above;
Prepare.

According to the present disclosure, it is possible to prevent the vehicle from being damaged due to tilting of the cab.

1 is a diagram showing a conventional drive circuit; FIG. 1 is a diagram showing a conventional drive circuit; FIG. FIG. 4 is a diagram showing a normal state in which the cab is not tilted up, of the vehicle according to the embodiment of the present disclosure; FIG. 5 is a diagram showing a tilted state in which the cab of the vehicle according to the embodiment is tilted up; FIG. 5 is an enlarged view of the tilt portion when the tilt member is at the lower limit position; FIG. 4 is an enlarged view of the tilt portion when the tilt member is at a position where the cab can be pushed up; It is a figure which shows the power supply apparatus which concerns on this Embodiment. It is a figure for demonstrating operation|movement of a power supply apparatus. It is a figure for demonstrating operation|movement of a power supply apparatus. It is a figure for demonstrating operation|movement of a power supply apparatus. It is a figure for demonstrating operation|movement of a power supply apparatus.

Hereinafter, embodiments of the present disclosure will be described in detail based on the drawings. FIG. 2A is a diagram showing a normal state of vehicle 1 according to the embodiment of the present disclosure, in which cab 2 is not tilted up. FIG. 2B is a diagram showing a tilted state in which the cab 2 of the vehicle 1 according to the present embodiment is tilted up.

As shown in FIGS. 2A and 2B, the vehicle 1 is a large vehicle such as a cab-over type commercial vehicle, and includes a cab 2, a vehicle body 3, a lock mechanism 4, a tilt section 5, and a power supply device 100 ( See FIG. 5).

The cab 2 is supported by the front end portion of the vehicle body 3 and configured to be tiltable with respect to the vehicle body 3 . Specifically, the cab 2 is configured to be movable between a normal state in which it is not tilted up (see FIG. 2A) and a tilted state in which it is tilted up (see FIG. 2B).

The lock mechanism 4 is a mechanism for locking the cab 2 to the vehicle body 3 when the cab 2 is in the normal state. The lock mechanism 4 is, for example, a known mechanism configured by an engaging portion provided on one of the cab 2 and the vehicle body 3 and an engaged portion provided on the other of the cab 2 and the vehicle body 3 .

The lock mechanism 4 can, for example, be manually engaged by the user to engage the engaging portion and the engaged portion, that is, unlock the cab 2 from the vehicle body 3, and the cab 2 transitions from the tilt state to the normal state. It is a mechanism that automatically engages (locks) the engaging portion and the engaged portion when it is engaged. Note that the lock mechanism 4 is not limited to this, and may be any mechanism as long as it can lock and unlock the cab 2 and the vehicle body 3 .

The tilt section 5 tilts the cab 2 when the cab 2 transitions between the normal state and the tilt state. FIG. 3A is an enlarged view of the tilt portion 5 when the tilt member 52 is at the lower limit position. FIG. 3B is an enlarged view of the tilt portion 5 when the tilt member 52 is in a position where the cab 2 can be pushed up.

As shown in FIGS. 3A and 3B, the tilt section 5 has a cylindrical member 51 and a tilt member 52. As shown in FIGS. The cylindrical member 51 has a hollow cylindrical shape and is provided below the cab 2 in the vehicle body 3, for example.

The tilt member 52 is configured to be able to move up and down with respect to the cylindrical member 51, and is a member that tilts the cab 2 by coming into contact with the cab 2 from below.

The tilt member 52 is configured to be movable between a lower limit position and an upper limit position. The lower limit position of the tilt member 52 is a position at which it does not come into contact with the cab 2 in the normal state, as shown in FIG. 3A. The upper limit position of the tilting member 52 is the position where the tilting member 52 is completely raised until the cab 2 is in the tilted state (see FIG. 2B).

The tilt member 52 rises from the lower limit position, contacts the cab 2 in the normal state and pushes it up, thereby tilting the cab 2 up into the tilted state, as shown in FIG. 3B. Then, the tilt member 52 descends from the tilted position (upper limit position) to tilt down the cab 2 to the normal state. After the cab 2 is tilted to the normal state, the tilt member 52 is further lowered from the position shown in FIG. 3B to the lower limit position shown in FIG. 3A.

As shown in FIG. 4 , the power supply device 100 is a drive circuit that supplies power to a drive section 160 (such as a pump) that drives the tilt member 52 . The power supply device 100 includes an up/down switching section 110, a rising switching section 120, a blocking section 130, a falling switching section 140, a drive switching section 150, a driving section 160, an alarm section 170, and a first diode 180. , a second diode 181 as an example of a first element portion, and a third diode 182 as an example of a second element portion.

The up/down switching unit 110 is a switch that switches the connection destination of the supply path 101 connected to the supply source (not shown) to which electric power is supplied to either the first energization path 102 or the second energization path 103. is.

The first energization path 102 is an energization path for energizing the drive unit 160 and is an energization path to which electric power for tilting up the cab 2 is supplied. The second energization path 103 is an energization path for energizing the drive unit 160, and is an energization path to which electric power for tilting the cab 2 is supplied.

The up/down switching unit 110 switches between the first energization path 102 (UP side) and the second energization path 103 (DOWN side) by, for example, manually operating a tilt lever provided outside the vehicle 1 by the user. The connection destination of the supply route 101 is switched to either one.

The rising switching unit 120 is a switch provided on the first energization path 102 . The rising switching unit 120 switches the first energization path 102 between a cutoff state (UP LIMIT side) in which the first energization path 102 is cut off and an energization state in which the first energization path 102 is energized. Specifically, when the tilt member 52 is at the upper limit position, the elevation switching unit 120 is in a cut-off state, and when the tilt member 52 is at a position other than the upper limit position, it is in a conductive state.

Further, the criterion for judging whether or not the tilt member 52 is at the upper limit position is, for example, that an arm portion (not shown) provided on the tilt member 52 is provided on the cab 2 at the same time when the tilt member 52 reaches the upper limit position. It is possible to determine whether or not to press a switch (not shown). In this case, the rising switching unit 120 is configured to switch between the disconnection state and the conduction state in conjunction with the pressing state of the switch. Note that the criterion for determining whether the tilt member 52 is at the upper limit position is not limited to this, and any criteria may be used.

The cut-off unit 130 is a switch provided in the third energization path 104 that is the energization path between the first energization path 102 and the drive unit 160 . The first energization path 102 and the third energization path 104 correspond to the "tilt-up energization path portion" of the present disclosure.

The breaker 130 switches to the cutoff state (LOCK side) when the cab 2 is locked to the vehicle body 3 so that the cab 2 cannot be tilted, and is switched to the conducting state (release side) when the cab 2 is unlocked from the vehicle body 3. switch to

Further, whether or not the cab 2 is locked to the vehicle body 3 may be determined, for example, based on a signal from a sensor (not shown) capable of determining the locked state of the lock mechanism 4 . In this case, the cutoff unit 130 is configured to switch between the cutoff state and the conductive state in conjunction with the change of the signal. Note that the determination as to whether or not the cab 2 is locked to the vehicle body 3 is not limited to this, and may be determined in any manner.

Also, the first conducting path 102 is connected to the third conducting path 104 via the first diode 180 . The first diode 180 has an anode connected to the first conduction path 102 side and a cathode connected to the third conduction path 104 side. Thus, the power supply device 100 is configured such that power is supplied only from the first power supply path 102 side to the third power supply path 104 side.

The descent switching unit 140 is a switch provided on the second current path 103 . The down switching unit 140 switches the second energization path 103 between a cut-off state (DOWN LIMIT side) in which the second energization path 103 is cut off and an energization state in which the second energization path 103 is energized. Specifically, the descent switching unit 140 is in a disconnecting state when the tilt member 52 is at the lower limit position, and is in a conducting state when the tilt member 52 is at a position other than the lower limit position.

Further, the criterion for determining whether the tilt member 52 is at the lower limit position is, for example, that an arm portion (not shown) provided on the tilt member 52 is provided on the vehicle body 3 at the same time when the tilt member 52 reaches the lower limit position. It is possible to determine whether or not to press a switch (not shown). In this case, the descent switching unit 140 is configured to switch between the disconnection state and the conduction state in conjunction with the pressing state of the switch. Note that the criterion for determining whether the tilt member 52 is at the lower limit position is not limited to this, and any criteria may be used.

Further, the second current path 103 is connected to the previous stage of the down switching section 140 and to the previous stage of the cutoff section 130 of the third current path 104 via the second diode 181 . The second diode 181 has an anode connected to the upstream side of the down switching section 140 in the second conducting path 103 and a cathode connected to the upstream side of the breaking section 130 in the third conducting path 104 .

That is, the second diode 181 prevents power supply from the first power supply path 102 and the third power supply path 104 to the second power supply path 103, and prevents power supply from the second power supply path 103 to the third power supply path 104. allow. The second energization path 103 corresponds to the "tilt-down energization path portion" of the present disclosure. The path by the second diode 181 corresponds to the "detour current prevention section" and the "connection path section" of the present disclosure.

Thus, the power supply device 100 is configured such that power is supplied only from the second power supply path 103 side to the third power supply path 104 side. In other words, the second diode 181 prevents the electric power for tilting up the cab 2 from bypassing the blocking unit 130 and being supplied to the driving unit 160 . In other words, the second diode 181 prevents the electric power for tilting up the cab 2 from being supplied from the first conducting path 102 to the driving section 160 via the second conducting path 103 .

In addition, the second energization path 103 is connected to each other after the descent switching section 140 and after the cutoff section 130 in the third energization path 104 . A confluence point P of the second current path 103 and the third current path 104 is connected to a drive path 105 that is connected to the drive section 160 .

The drive switching unit 150 is a switch provided in the drive path 105, and switches the drive path 105 to either a conductive state or a cut-off state. For example, when a user presses a drive switch for driving the drive unit 160, the drive switching unit 150 brings the drive path 105 into a conductive state, and when the drive switch is not pressed, brings the drive path 105 into a cut-off state. .

The alarm unit 170 is provided in parallel with the driving unit 160, and is a buzzer that outputs an alarm while the cab 2 is tilting to inform the user or the like that the cab 2 is tilting. be. The alarm path 106 connected to the alarm unit 170 is connected to the first energization path 102 on the downstream side of the rising switching unit 120 . As a result, when the cab 2 transitions from the normal state to the tilt state, the alarm unit 170 is activated until the tilt member 52 rises to the upper limit position.

Also, the alarm path 106 is connected to the confluence point P of the downstream energization path 103 and the third energization path 104 via the third diode 182 . The alarm path 106 and the path of the third diode 182 correspond to the "alarm path portion" of this disclosure. The third diode 182 corresponds to the "bypass current prevention section" of the present disclosure.

Specifically, the third diode 182 has an anode connected to the junction P side and a cathode connected to the alarm path 106 side. That is, the third diode 182 prevents power supply from the alarm path 106 to the drive path 105 and allows power supply from the drive path 105 to the alarm path 106 . As a result, when the cab 2 transitions from the tilt state to the normal state, the alarm unit 170 is activated until the tilt member 52 descends to the lower limit position.

Next, the operation of power supply device 100 will be described. First, the operation of the power supply device 100 when shifting the cab 2 from the normal state to the tilt state will be described.

As shown in FIG. 4 , when the cab 2 is shifted from the normal state to the tilted state, the lock between the cab 2 and the vehicle body 3 is released manually by the user or the like, and the breaker 130 conducts the third current path 104 . state. After the third energization path 104 is set to the conducting state, the up/down switching unit 110 switches the connection destination of the supply path 101 to the first energization path 102 side by the user's operation.

At this time, since the cab 2 is in the normal state, that is, the tilt member 52 is not at the upper limit position, the ascending switching unit 120 sets the first energization path 102 to the conductive state. As a result, electric power is supplied to the driving portion 160 via the first current path 102, the third current path 104 and the drive path 105, and the tilt member 52 starts to rise.

As shown in FIG. 5, when the tilt member 52 is lifted and moved to the upper limit position, the lift switching portion 120 switches from the conductive state (solid line) to the cutoff state (broken line). As a result, power supply from the supply path 101 to the first power supply path 102 is cut off, and power supply to the drive unit 160 is stopped.

Note that when the tilt member 52 rises above the lower limit position, the downward switching portion 140 switches from the cut-off state (broken line) to the conductive state (solid line). 4 and 5, since power continues to be supplied to the alarm path 106 while power is being supplied to the first current path 102, the alarm unit 170 continues to output an alarm during the tilting operation of the cab 2. state. Then, when the tilt member 52 rises and moves to the upper limit position, the elevation switching unit 120 is turned off, power is no longer supplied to the alarm path 106, and the alarm unit 170 stops outputting the alarm.

Next, the operation of the power supply device 100 when shifting the cab 2 from the tilt state to the normal state will be described.

As shown in FIG. 6 , when the cab 2 is shifted from the tilted state to the normal state, the up/down switching unit 110 switches the connection destination of the supply path 101 to the second current path 103 side by the user's operation. At this time, since the tilt member 52 is not at the lower limit position, the descent switching unit 140 sets the second energization path 103 to the conductive state. As a result, electric power is supplied to the driving portion 160 via the second power supply path 103, and the tilt member 52 begins to descend.

Further, since the cab 2 is not locked to the vehicle body 3, the breaker 130 sets the third current path 104 to the conductive state. As a result, power is supplied to the drive unit 160 not only from the second current path 103 but also from the second diode 181 and the third current path 104 .

Note that when the tilt member 52 descends from the upper limit position, the elevation switching unit 120 switches the first energization path 102 from the conductive state (broken line) to the disconnected state (solid line).

When the tilt member 52 descends, the cab 2 descends to the position shown in FIG. 2A. At this time, as shown in FIG. 7, the cab 2 is locked to the vehicle body 3, so that the breaker 130 switches the third conduction path 104 from the conducting state (broken line) to the breaking state (solid line).

Immediately after the cab 2 descends to the position of the normal state shown in FIG. 2A, the tilt member 52 has not yet descended to the state shown in FIG. It remains set to the conducting state (solid line). Therefore, power is supplied to the driving section 160 only through the second current path 103 via the lowering switching section 140 .

After that, when the tilt member 52 continues to descend by supplying electric power to the drive unit 160 and descends to the lower limit position shown in FIG. is set, and power supply to the drive unit 160 is stopped.

6 and 7, while power is being supplied to the second current path 103, power continues to be supplied to the alarm path 106 via the second current path 103 and the third diode 182. During the tilt operation of , the alarm unit 170 continues to output an alarm. Then, when the tilt member 52 descends and moves to the lower limit position, the blocking portion 130 enters the blocking state, and the descent switching portion 140 enters the blocking state. As a result, power is no longer supplied to the alarm path 106, and the alarm unit 170 stops outputting the alarm.

By the way, as shown in FIG. 8 , in a state in which the disconnecting unit 130 has disconnected the third energization path 104 (a state in which the cab 2 is locked to the vehicle body 3 ) due to a user's erroneous operation or the like, the up/down switching unit 110 Therefore, the connection destination of the supply path 101 may be switched to the first energization path 102 .

3B to the position shown in FIG. 3A, that is, during the descent of the tilt member 52 after the cab 2 is locked to the vehicle body 3. For example, the connection destination of the path 101 is switched from the second energization path 103 to the first energization path 102 . Further, as an erroneous operation by the user, there is a case where the user forgets to unlock the cab 2 with respect to the vehicle body 3 when raising the cab 2 .

In this case, for example, if the second energization path 103 and the first energization path 102 are electrically connected, power will be supplied to the drive unit 160 via the first energization path 102 and the second energization path 103 .

In this case, the tilt member 52 may be raised while the cab 2 is locked to the vehicle body 3, and the tilt portion 5 may be subjected to an excessive load, resulting in damage to the vehicle 1.

However, in this embodiment, the electric power supplied to the first power supply path 102 is not supplied to the second power supply path 103 . Specifically, the power supplied to the first conduction path 102 is not supplied to the second conduction path 103 by the second diode 181 . As a result, since electric power is not supplied to the drive unit 160 when the cab 2 is locked, it is possible to prevent the vehicle 1 from being damaged due to an erroneous operation by the user or the like.

Further, since the third diode 182 is provided between the alarm path 106 and the confluence P (drive path 105), the power supplied to the first energization path 102 passes through the alarm path 106 to the drive path 105 side. not supplied to That is, the third diode 182 prevents the electric power for tilting up the cab 2 from being supplied from the first energization path 102 and the third energization path 104 to the driving section 160 via the alarm path 106 .

As a result, when the cab 2 is locked, the electric power supplied to the first energization path 102 is not supplied to the drive unit 160 via the alarm path 106, so that the vehicle 1 may be damaged due to an erroneous operation by the user. can be prevented.

In addition, since the alarm path 106 is connected between the elevation switching section 120 and the cut-off section 130, for example, when the tilt member 52 is not at the upper limit position, that is, when the elevation switching section 120 is in a conductive state, the supply path 101 is connected to the first energization path 102, the alarm unit 170 always outputs an alarm. Therefore, for example, even when the cab 2 is in the normal state and locked to the vehicle body 3, if the supply path 101 is connected to the first energization path 102, an alarm is output. In this case, since the cab 2 does not tilt as described above, the user can notice an erroneous operation such as forgetting to unlock the cab 2 by the alarm.

Further, since the second diode 181 connects the second conduction path 103 and the first conduction path 102, for example, when the tilt member 52 is at the lower limit position, that is, when the downward switching portion 140 is in the cutoff state and the cutoff portion When the supply path 101 is connected to the second energization path 103 while 130 is in a conductive state, the alarm unit 170 always outputs an alarm. At this time, the cab 2 is in the normal state, in the unlocked state, and the tilt member 52 does not descend any further. If an erroneous operation such as connecting the supply path 101 to the second energization path 103 is performed in such a case, an alarm is also output. In this case, since the cab 2 does not tilt, the user can notice an erroneous operation of the up/down switching unit 110 by the alarm.

Although the second diode 181 has been exemplified as the first element portion in the above-described embodiment, the present disclosure is not limited to this, and an element portion having a switch function, for example, may be used. In this case, when the supply path 101 and the first energization path 102 are connected and the third energization path 104 is cut off, the element section may be cut off.

Further, in the above embodiment, the second diode 181 is provided between the second current path 103 and the third current path 104, so that the power supplied to the first current path 102 is transferred to the second current path 103. Although configured not to be supplied, the present disclosure is not so limited. For example, the second energization path 103 and the third energization path 104 may not be connected between the third energization path 104 and the first energization path 102, and the second energization path 103 may be provided with a cutoff switch or the like. You can set it.

In addition, each of the above-described embodiments merely shows an example of implementation for carrying out the present disclosure, and the technical scope of the present disclosure should not be construed to be limited by these. That is, the present disclosure can be embodied in various forms without departing from its spirit or key features.

INDUSTRIAL APPLICABILITY The power supply device of the present disclosure is useful as a power supply device and a vehicle capable of preventing damage to the vehicle due to tilting of the cab.

1 Vehicle 2 Cab 3 Vehicle Body 4 Locking Mechanism 5 Tilt Part 51 Cylindrical Member 52 Tilt Member 100 Electric Power Supply Device 101 Supply Path 102 First Conduction Path 103 Second Conduction Path 104 Third Conduction Path 105 Drive Path 106 Alarm Path 110 Up/Down Switching Section 120 Rise Switching Section 130 Blocking Section 140 Falling Switching Section 150 Drive Switching Section 160 Driving Section 170 Alarm Section 180 First Diode 181 Second Diode 182 Third Diode

Claims (9)

A power supply device that supplies power to a drive unit that tilts a cab with respect to a vehicle body,
a tilt-up energization path portion supplied with the electric power for tilting up the cab with respect to the vehicle body;
a tilt-down energization path section to which the electric power for tilting down the cab with respect to the vehicle body is supplied;
an up/down switching unit that switches a connection destination of the power supply source to either one of the tilt-up energization path and the tilt-down energization path;
a blocking unit that blocks the tilt-up power supply path when the cab is locked to the vehicle body so that the cab cannot be tilted;
a detour current prevention unit configured to prevent the electric power for tilting up the cab from bypassing the cutoff unit and being supplied to the driving unit;
A power supply device comprising: The detour energization prevention unit prevents the electric power for tilting up the cab from being supplied from the tilt-up energization path unit via the tilt-down energization path unit.
The power supply device according to claim 1 . The detour energization prevention unit includes a first element portion provided in a connection path portion that connects the tilt-down energization path portion and the tilt-up energization path portion,
The first element section prevents the power supply from the tilt-up power supply path section to the tilt-down power supply path section and prevents the power supply from the tilt-down power supply path section to the tilt -up power supply path section. allow,
3. The power supply device according to claim 2. The connection path portion connects the tilt-up current-carrying path portion and the tilt-down current-carrying path portion at a stage preceding the cut-off portion.
4. The power supply device according to claim 3. The tilt-up energization path section and the tilt-down energization path section are connected to each other after the cut-off section, and supply the electric power to the driving section via a common energization path.
The power supply device according to any one of claims 1 to 4. an alarm path unit connected to each of the tilt-up energization path unit and the tilt-down energization path unit so as to be able to supply the power to the alarm unit provided in parallel with the drive unit;
The power supply device according to any one of claims 1 to 5. The detour energization prevention unit prevents the electric power for tilting up the cab from being supplied from the tilt-up energization path unit via the alarm path unit.
The power supply device according to claim 6. The detour energization prevention unit includes a second element unit provided in the alarm path unit connected to the drive path connected to the drive unit after the cutoff unit,
The second element section prevents the supply of the electric power from the alarm path section to the drive path, and prevents the supply of the electric power from the tilt-up energization path section and the tilt-down energization path section to the alarm path section. allow,
The power supply device according to claim 7. a tilt member for tilting the cab with respect to the vehicle body;
the driving unit that drives the tilt member;
a power supply device according to any one of claims 1 to 8;
vehicle equipped with

Images