JP2022156068A - Outrigger device of service car - Google Patents

Abstract

To provide an outrigger device which can shorten time to the touch-down completion of an outrigger.SOLUTION: When an outrigger beam 6 lies at a storage position, a movable panel 7e lies at a position of covering an opening 7d1 from outside. At an initial position of the movable panel 7e, an engaging member 7a1 and an engaging member 7b1 lie at positions separated from gripping lever 6d and a rotary lever 6e, and the outrigger beam 6b is locked to an outrigger box 6a by means of a double lock mechanism of an outrigger lock mechanism and a travel lock mechanism. When the movable panel 7e is moved in an elongation direction to the outrigger beam 6b with respect to the attachment panel 7d, the engaging member 7a1 of a first lock release part 7a and the engaging member 7b1 of a second lock release part 7b, too, move in the above-mentioned direction, and the gripping lever 6d and the rotary lever 6e are actuated by the engaging member 7a1 and the engaging member 7b1, so that the outrigger lock mechanism and the travel lock mechanism are released of locking.SELECTED DRAWING: Figure 7

Description

There is an application for the application of Article 30, Paragraph 2 of the Patent Act.

TECHNICAL FIELD The present invention relates to an outrigger device mounted on a work vehicle such as a fire engine, a rescue vehicle, a crane vehicle, and an aerial work vehicle.

In order to prevent the vehicle body from overturning when carrying out the required work by extending the working mobile body on the working vehicle equipped with a working mobile body such as a telescoping or folding ladder, boom, or crane, It is equipped with outriggers (for example, Patent Document 1 below). The outriggers are equipped on the left and right sides of the vehicle body, and consist of an outrigger box fixed to the vehicle body, an outrigger beam attached to the outrigger box, and a jack that can be raised and lowered at the tip of the outrigger. be. The outrigger beams are telescopically attached to the outrigger boxes, and between the storage position where they are fully retracted and the extended position where they are extended from the storage position and protrude a predetermined distance in the vehicle width direction, It can expand and contract in the vehicle width direction. Usually, as the extended position of the outrigger beam, the extended position suitable for the work can be selected from the maximum extended position and one or a plurality of intermediate extended positions. In order to prevent the outrigger beams from jumping out of the outrigger box due to vibrations or sharp turns while the vehicle is running, the outrigger beams are locked in the retracted position. An outrigger locking mechanism is provided to lock the outrigger beams in the extended position. In addition, a travel lock mechanism is provided to lock the outrigger beams in the retracted position, and by locking the outrigger beams in the retracted position with a double lock mechanism of the outrigger lock mechanism and the travel lock mechanism, the outrigger beams can pop out when the vehicle is traveling. are more strictly prevented.

FIG. 13(a) shows a known outrigger 10 in which an outrigger beam 10b is fully retracted and stored in an outrigger box 10a fixed to the vehicle body (storage position). An operation lever (grasping lever 11) of the outrigger lock mechanism is provided on one side (left side in the figure) of the tip of the outrigger beam 10b {Fig. 13(b)}, and the other side (right side in the figure). is provided with an operation lever (rotational lever 12) {FIG. 13(c)} of the lock mechanism for running.

The outrigger lock mechanism is a mechanism that locks the outrigger beam 10b to the outrigger box 10a with a lock pin or the like (not shown) at each of the retracted position and the extended position of the outrigger beam 10b. Locking and unlocking of the outrigger lock mechanism are operated by the grasping lever 11 . With the outrigger beam 10b in the retracted position, gripping the gripping lever 11 and displacing it from the initial position shown in FIG. is unlocked, and the outrigger beam 10b can be extended from the retracted position (the travel lock mechanism must also be unlocked). In this state, when the outrigger beam 10b is extended to the extended position and the gripping lever 11 is released, the gripping lever 11 autonomously returns to the initial position shown in FIG. , the lock pin or the like is actuated to switch to locking, and the outrigger beam 10b is locked at the extended position.

The travel lock mechanism is a mechanism that locks the outrigger beam 10b to the outrigger box 10a with the engaging claw 12a and the engaging pin 12b of the rotating lever 12 when the outrigger beam 10b is in the retracted position. The engaging pin 12b is fixed to the other side (the right side in FIG. 13(a)) of the tip of the outrigger box 10a. When the outrigger beam 10b is at the retracted position, the engaging claw 12a of the rotating lever 12 engages with the engaging pin 12b to lock the outrigger beam 10b at the retracted position. When the outrigger beam 10b is in the retracted position, the rotating lever 12 is gripped and displaced from the initial position shown in FIG. The engagement claw 12a of the rotating lever 12 is released from the engagement pin 12b to release the lock.

Utility Model Registration No. 3221401

In the outriggers having the dual lock mechanism of the outrigger lock mechanism and the travel lock mechanism as described above, when extending the outrigger beam from the retracted position to the extended position, the operator must push the operation lever of the outrigger lock mechanism to one side. It is necessary to hold it with one hand, hold the operating lever of the lock mechanism for travel with the other hand, unlock both lock mechanisms, and move backward in this state to extend the outrigger beam. Moving backwards with both hands occupied, particularly at a work site with poor footing, can easily lead to loss of body balance. not. In addition, in order to enable more stable grounding of the outriggers, there are cases where a sole plate is laid on the grounding point of the jack. After extending it to the extended position, it is forced to return to the vehicle body side to pick up the floorboard, and then return to the grounding point of the jack and lay the floorboard. For these reasons, the time from the start of outrigger extension to the completion of ground contact tends to be long.

After the work vehicle arrives at the work site, the outriggers are grounded, and after the grounding is completed, the work vehicle is operated to perform the required work. will be late. Therefore, there is a recognized need to reduce the time required for the outriggers to touch the ground in order to start work quickly. In particular, fire engines and rescue vehicles are required to promptly start fire extinguishing and rescue operations after arriving at the disaster site.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an outrigger device capable of shortening the time required for the outriggers to complete the contact with the ground.

In order to solve the above problems, the present invention provides an outrigger device comprising an outrigger mounted on a work vehicle and an operation mechanism provided at the tip of the outrigger, wherein the outrigger is a vehicle body of the work vehicle. a storage position where the outrigger box is attached to the outrigger box and stored in the outrigger box in a fully contracted state; an outrigger beam that can be extended and contracted in the vehicle width direction, a jack that is provided at the tip of the outrigger beam so that it can be raised and lowered, and the outrigger beam that is locked with respect to the outrigger box at the retracted position and the extended position. and a travel lock mechanism capable of locking the outrigger beam with respect to the outrigger box at the retracted position, wherein the operation mechanism unlocks the outrigger beam by the outrigger lock mechanism. a first unlocking portion for unlocking the outrigger beam by the travel lock mechanism; a second unlocking portion for unlocking the outrigger beam; the first unlocking portion and the second unlocking portion; an operating handle for interlocking operation, wherein the first unlocking portion and the second unlocking portion operate in conjunction with the operation of pulling the operating handle in the extending direction of the outrigger beam, Provided is an outrigger device for a working vehicle, wherein the lock of the outrigger lock mechanism and the lock of the lock mechanism for travel are unlocked.

According to the present invention, it is possible to provide an outrigger device capable of shortening the time required for the outriggers having the dual lock mechanism of the outrigger lock mechanism and the travel lock mechanism to complete the contact with the ground.

It is a left side view of a rescue vehicle. It is an enlarged view of the A section of FIG. It is the figure which looked at the outrigger apparatus from the left side of the vehicle body. It is the figure which looked at the outrigger device from the front side of the vehicle body. It is the figure which looked at the outrigger apparatus from the rear side of the vehicle body. 6(a) is a view of the outrigger device viewed from above the vehicle body, FIG. 6(a) shows a state in which the movable panel is in the initial position, and FIG. 6(b) shows the movable panel from the initial position in FIG. 6(a). It shows a state in which the outrigger beam has moved in the extension direction. 7(a) is a view of the outrigger device as seen from the front side of the vehicle body, and FIG. 7(b) is a view of the outrigger device as seen from the rear side of the vehicle body. Fig. 8(a) shows the outrigger device as seen from the front side of the vehicle body, and Fig. 8(b) shows the outrigger device as seen from the rear side of the vehicle body. It is a diagram. Fig. 9(a) shows the outrigger device as seen from the front side of the vehicle body, and Fig. 9(b) shows the outrigger device as seen from the rear side of the vehicle body. It is a diagram. Fig. 10(a) shows the outrigger device as seen from the front side of the vehicle body, and Fig. 10(b) shows the outrigger device as seen from the rear side of the vehicle body. It is a diagram. 11(a) shows a state in which the movable panel is in the initial position, and FIG. 11(b) shows a state in which the movable panel is in the position shown in FIG. 11(a). has moved in the extension direction of the outrigger beam from its initial position. 12(a) shows a state in which the movable panel is in the initial position, and FIG. 12(b) shows the movable panel in FIG. 12 ( It shows a state moved in the extension direction of the outrigger beam from the initial position of a). They are a perspective view {FIG. 13(a)} showing a known outrigger, a side view {FIG. 13(b)} of a grip lever, and a perspective view {FIG. 13(c)} of a travel lock mechanism including a rotating lever.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a rescue vehicle as a work vehicle. Rescue vehicles are vehicles loaded with materials and equipment necessary for rescue operations at disaster sites such as fires and natural disasters. Among the rescue vehicles, there are also those that have the functions of fire trucks, loaded with materials and equipment necessary for firefighting activities. The rescue work vehicle shown in the figure is a double-cabin vehicle consisting of a high-roofed front cabin 1 and a rear cabin 2 behind it. Behind the rear cabin 2, there is a shutter that opens and closes to store materials and equipment necessary for rescue activities. In the upper part of the storage room 3, a working mobile body such as a telescopic crane 4 is loaded, and in the lower rear part of the storage room 3, left and right outrigger devices 5 are installed. there is In addition, on the upper portion of the outrigger device 5, equipment for supporting the base portion 4a of the crane 4, turning and raising and lowering the crane 4, other equipment, equipment, and the like are loaded.

The outrigger device 5 will be described below, but since the left and right outrigger devices 5 have substantially the same configuration, the outrigger device 5 on the side appearing in FIG. However, description of the outrigger device 5 on the opposite side will be omitted.

As shown in FIGS. 3 to 6, the outrigger device 5 includes an outrigger 6 and an operating mechanism 7 provided at the tip of the outrigger 6. As shown in FIGS.

In this embodiment, the outrigger 6 has substantially the same configuration as the known outrigger 10 shown in FIG. Main elements are a beam 6b and a jack 6c provided at the tip of the outrigger beam 6b so as to be able to move up and down. The outrigger beam 6b can extend and contract in the vehicle width direction between a storage position where it is stored in the outrigger box 6a in a fully contracted state and an extended position where it extends from the storage position and projects in the vehicle width direction. Usually, as the extended position of the outrigger beam 6b, the extended position suitable for the work can be selected from the maximum extended position and one or a plurality of intermediate extended positions. Further, an outrigger lock mechanism capable of locking the outrigger beam 6b with respect to the outrigger box 6a at the retracted position and the extended position, and a traveling lock mechanism capable of locking the outrigger beam 6b with respect to the outrigger box 6a at the retracted position are provided. ing. The operation lever (gripping lever 6d) of the outrigger lock mechanism is provided on one side (the left side in FIG. 3) of the tip of the outrigger beam 6b, and the operation lever (rotating lever 6e) of the travel lock mechanism is provided on the outrigger It is provided on the other side (right side in FIG. 3) of the tip of the beam 6b. The configuration and operation of the outrigger lock mechanism, the grip lever 6d, the travel lock mechanism, and the rotating lever 6e are also substantially the same as those of the known outrigger 10 shown in FIG.

As shown in FIGS. 4 to 6, the operation mechanism 7 includes a first unlocking portion 7a for unlocking the outrigger beams 6b by the outrigger lock mechanism, and a first unlocking portion 7a for unlocking the outrigger beams 6b by the travel lock mechanism. and an operation handle 7c for operating the first unlocking portion 7a and the second unlocking portion 7b in conjunction with each other.

In this embodiment, the first unlocking portion 7a is configured by attaching an engaging member 7a1 that can be engaged with the gripping lever 6d to a movable panel 7e, which will be described later, via a position adjusting screw 7a2 and a bracket 7a3. be. A tip portion of the engaging member 7a1 faces the grip lever 6d in the vehicle width direction (longitudinal direction of the outrigger beam 6b). The proximal end portion of the engaging member 7a1 is externally fitted on the threaded shaft of the position adjusting screw 7a2, and fixed to the threaded shaft with a nut (double nut) screwed onto the threaded shaft so that the position thereof can be adjusted. The base end of the screw shaft of the position adjustment screw 7a2 is fixed to a bracket 7a3, and the bracket 7a3 is fixed to the inner surface of a movable panel 7e, which will be described later. The screw shaft of the position adjustment screw 7a2 is arranged in parallel with the vehicle width direction, and by adjusting the fixed position of the base end portion of the engagement member 7a1 with respect to the screw shaft with a nut, the tip portion of the engagement member 7a1 and the screw shaft are adjusted. The clearance δ1 in the vehicle width direction with the grip lever 6d can be set to a desired value (initial clearance δ10).

Further, in this embodiment, the second unlocking portion 7b has an engaging member 7b1 that can be engaged with the rotating lever 6e, which is attached to a movable panel 7e, which will be described later, via a position adjusting screw 7b2 and a bracket 7b3. Consists of A tip portion of the engaging member 7b1 faces the rotating lever 6e in the vehicle width direction. A proximal end portion of the engaging member 7b1 is externally fitted on the screw shaft of the position adjusting screw 7b2, and fixed to the screw shaft so that the position can be adjusted with a nut (double nut) screwed onto the screw shaft. The base end of the screw shaft of the position adjustment screw 7b2 is fixed to a bracket 7b3, and the bracket 7b3 is fixed to the inner surface of a movable panel 7e, which will be described later. The screw shaft of the position adjustment screw 7b2 is arranged in parallel with the vehicle width direction, and by adjusting the fixing position of the base end portion of the engagement member 7b1 with respect to the screw shaft with a nut, the tip portion of the engagement member 7b1 and the screw shaft are adjusted. The clearance δ2 in the vehicle width direction between the rotating lever 6e can be set to a desired value (initial clearance δ20).

Further, in this embodiment, the operating mechanism 7 abuts on a mounting panel 7d detachably attached to the distal end portion of the outrigger 6 and on the peripheral edge portion of the opening 7d1 provided in the mounting panel 7d. is provided with a movable panel 7e covering from the outside. The mounting panel 7d is detachably attached to, for example, a jack box 6c1 of the jack 6c with a mounting member 7d2. The movable panel 7e is attached to the mounting panel 7d via, for example, an extendable stopper 7e1, and is movable in the vehicle width direction with respect to the mounting panel 7d. The movement of the movable panel 7e in the vehicle width direction with respect to the mounting panel 7d is guided by the stopper 7e1, and the maximum amount of movement of the movable panel 7e in the vehicle width direction with respect to the mounting panel 7d is restricted by the stopper 7e1. The stopper 7e1 may be provided with a damper mechanism such as a gas type, a spring type, or a hydraulic type.

The first unlocking portion 7a and the second unlocking portion 7b are attached to the inner surface of the movable panel 7e, and the operating handle 7c is attached to the outer surface of the movable panel 7e. As will be described in detail below, when the operating handle 7c is gripped and the movable panel 7e is moved along with the operating handle 7c with respect to the mounting panel 7d in the vehicle width direction, the first movable panel 7e attached to the inner surface side of the movable panel 7e is moved. The unlocking portion 7a and the second unlocking portion 7b operate in conjunction to switch between locking and unlocking of the outrigger lock mechanism and the travel lock mechanism.

FIG. 7 shows the state (initial state) when the outrigger beam 6b is in the retracted position. In the initial state shown in FIG. 7, the movable panel 7e of the operation mechanism 7 is in contact with the peripheral edge of the opening 7d1 of the mounting panel 7d and is positioned to cover the opening 7d1 from the outside. At the initial position of the movable panel 7e, the engaging member 7a1 of the first unlocking portion 7a and the engaging member 7b1 of the second unlocking portion 7b are positioned away from the grip lever 6d and the rotating lever 6e, respectively. The outrigger beam 6b is locked with respect to the outrigger box 6a by a dual lock mechanism consisting of an outrigger lock mechanism and a travel lock mechanism. At the initial position of the movable panel 7e, a gap δ1 in the vehicle width direction between the tip of the engaging member 7a1 and the grip lever 6d is set to a predetermined initial gap δ10 by a position adjusting screw 7a2 {Fig. 7 ( a)}, and the gap δ2 in the vehicle width direction between the tip of the engaging member 7b1 and the rotating lever 6e is set to a predetermined initial gap δ20 by the position adjusting screw 7b2 {Fig. )}. When the engaging member 7a1 moves from the position of the initial gap δ10 by a distance δ10 in the extending direction of the outrigger beam 6b {rightward in FIG. When it moves in the above direction, the gripping lever 6d is displaced in the gripping direction {rightward in FIG. 7(a)} (operation of the gripping lever 6d). Then, when the engaging member 7a1 moves from the position of the initial clearance δ10 in the above direction by a predetermined distance X1, the displacement amount of the grip lever 6d reaches a predetermined amount, and the lock of the outrigger lock mechanism is released. Further, when the engaging member 7b1 moves from the position of the initial gap δ20 by a distance δ20 in the extending direction of the outrigger beam 6b {leftward in FIG. When it moves further in the above direction from the position, the rotating lever 6e is displaced in the rotating direction (counterclockwise direction in FIG. 7B) (operation of the rotating lever 6e). Then, when the engaging member 7b1 moves from the position of the initial gap δ20 in the above direction by a predetermined distance X2, the displacement amount of the rotating lever 6e reaches a predetermined amount, and the engaging claw 6e1 of the rotating lever 6e is moved to the engaging pin 6a1. (Fixed to the other side of the tip of the outrigger box 6a), the travel lock mechanism is unlocked.

In this embodiment, the timing at which the locking of the outrigger lock mechanism is released by moving the engaging member 7a1 in the above direction is changed so that the distance X1≧the distance X2. The initial clearance δ10 and the initial clearance δ20 are set so as to coincide with or (slightly) after the timing at which the travel lock mechanism is unlocked (δ10>δ20). This is because if the outrigger lock mechanism is unlocked before the travel lock mechanism is unlocked, when the operator extends the outrigger beam 6b from the retracted position, the outriggers are locked at the moment the travel lock mechanism is unlocked. This is because the beam 6b suddenly moves in the extension direction, which may cause the operator to lose his/her body balance. By setting the unlocking timing of the outrigger lock mechanism to coincide with or (slightly) later than the unlocking timing of the travel lock mechanism, the above situation can be prevented.

In FIG. 8, the operating handle 7c is grasped with one hand and pulled in the extension direction of the outrigger beam 6b {rightward in FIG. 8(a), leftward in FIG. 8(b)} to move the movable panel 7e to the operating handle 7c. It also shows a state in which the mounting panel 7d is moved in the above direction by a distance X=.delta.20. Along with the movement of the movable panel 7e, the engaging member 7a1 of the first unlocking portion 7a and the engaging member 7b1 of the second unlocking portion 7b also move from the initial position shown in FIG. do. As shown in FIG. 8(b), at the moving position of the movable panel 7e, the distal end of the engaging member 7b1 comes into contact with the rotating lever 6e (δ2=0) to operate the rotating lever 6e (for traveling). unlocking operation of the locking mechanism) is started. On the other hand, as shown in FIG. 8(a), a gap δ1 (=δ10-δ20) remains between the tip of the engaging member 7a1 and the grip lever 6d. The operation of the gripping lever 6d (the unlocking operation of the outrigger lock mechanism) has not yet started.

FIG. 9 shows a state in which the operating handle 7c is further pulled to move the movable panel 7e in the above direction with respect to the mounting panel 7d by a distance X=.delta.10 (distance from the initial position shown in FIG. 7). Along with the movement of the movable panel 7e, the engaging member 7a1 of the first unlocking portion 7a and the engaging member 7b1 of the second unlocking portion 7b also move from the initial position shown in FIG. do. As shown in FIG. 9(a), when the movable panel 7e is in the moving position, the tip of the engaging member 7a1 comes into contact with the gripping lever 6d (δ1=0), and the gripping lever 6d is actuated (the outrigger lock mechanism is activated). unlocking operation) is started. As shown in FIG. 9(b), the operation of the rotating lever 6e (the unlocking operation of the travel lock mechanism) progresses from the state shown in FIG. 8(b). The operation of the rotating lever 6e (the unlocking operation of the travel lock mechanism) is not yet completed.

FIG. 10 shows a state in which the operating handle 7c is further pulled to move the movable panel 7e in the above direction with respect to the mounting panel 7d by a distance X=X1 (distance from the initial position shown in FIG. 7). Along with the movement of the movable panel 7e, the engaging member 7a1 of the first unlocking portion 7a and the engaging member 7b1 of the second unlocking portion 7b also move in the above direction from the initial position shown in FIG. 7 by the distance X1. do. When the movable panel 7e moves by the distance X1 with respect to the mounting panel 7d, the stopper 7e1 acts to limit the amount of movement of the movable panel 7e with respect to the mounting panel 7d to the distance X1. As shown in FIG. 10(a), at this moving position of the movable panel 7e, the operation of the grip lever 6d (the unlocking operation of the outrigger lock mechanism) is completed, and the lock of the outrigger lock mechanism is released. Further, as shown in FIG. 10(b), at this moving position of the movable panel 7e, the operation of the rotating lever 6e (the unlocking operation of the lock mechanism for traveling) is also completed, and the engaging claw 6e1 of the rotating lever 6e is released. is disengaged from the engaging pin 6a1, and the locking of the running lock mechanism is also released. distance from the initial position), and in the case of X1=X2, the traveling lock mechanism is unlocked at the same time as the outrigger lock mechanism at the movement position of the movable panel 7e shown in the figure, and X1>X2. In this case, the travel lock mechanism is unlocked before the outrigger lock mechanism at a position before the movement position of the movable panel 7e shown in FIG.

When the outrigger lock mechanism and the travel lock mechanism are unlocked in the manner shown in FIG. 10, the outrigger beam 6b can be extended from the retracted position. When the operator moves in the extension direction of the outrigger beam 6b while pulling the operating handle 7c with one hand from the state shown in FIG. The outrigger beam 6b is pulled and extended in the vehicle width direction by the contacting engaging member 7b1. Then, after the outrigger beam 6b is extended to a predetermined extended position, the operating handle 7c is pushed to move the movable panel 7e together with the operating handle 7c to the vehicle body side with respect to the mounting panel 7d. It is returned to a position where it abuts against the peripheral edge of the opening 7d1. Then, the engaging member 7a1 returns to the position separated from the gripping lever 6d by the initial gap δ10, and accordingly the gripping lever 6d returns to the initial position shown in FIG. 7 by itself, and the outrigger lock mechanism is switched to lock. As a result, the outrigger beam 6b is locked at the extended position by the outrigger lock mechanism, and contraction from the extended position is prevented, ensuring work safety. At this time, the engaging member 7b1 returns to the initial position shown in FIG. 7, and accordingly the rotating lever 6e rotates toward the initial position shown in FIG. Since it is in a remote position, the travel lock mechanism does not work.

When the outrigger beam 6b is returned from the extended position to the retracted position, one hand is applied to the mounting panel 7d while the other hand is used to pull the operating handle 7c, thereby moving the movable panel 7e together with the operating handle 7c to the mounting panel 7d. 10), and in this state, the outrigger beam 6b is moved toward the vehicle body while pushing the mounting panel 7d with one hand to move the outrigger beam 6b to the retracted position. Shrink until After retracting the outrigger beam 6b to the retracted position, the operation handle 7c is pushed to move the movable panel 7e along with the operation handle 7c toward the vehicle body with respect to the mounting panel 7d, thereby closing the opening 7d1 of the mounting panel 7d. back to a position where it abuts on the periphery of the Then, the outrigger lock mechanism and the travel lock mechanism are automatically switched to the lock state, and return to the initial state shown in FIG. As for the travel lock mechanism, in the process of returning the outrigger beam 6b to the retracted position, the engaging claw 6e1 of the rotating lever 6e comes into contact with the engaging pin 6a1, and the rotating lever 6e rotates the engaging pin 6e1. 12b and autonomously returns to the initial position shown in FIG.

With the outrigger device 5 of this embodiment, the outrigger beam 6b can be extended from the retracted position simply by gripping the operating handle 7c with one hand and pulling it in the extension direction of the outrigger beam 6b. It is easy to keep the balance of the body when extending the beam 6b, and the outrigger beam 6b can be quickly extended to a predetermined extended position. In addition, when laying a floor board on the grounding point of the jack 6c in order to enable more stable grounding of the outrigger 6, the operator holds the operating handle 7c with one hand and holds the floor board with the other hand, The outrigger beam 6b can be extended. Then, after the outrigger beam 6b is extended to a predetermined overhanging position and locked by the outrigger lock mechanism, the sole plate held by the other hand is laid on the grounding point of the jack 6c, and the jack 6c is started to descend. can be done. Therefore, the time from the start of extension of the outriggers 6 to the completion of ground contact is shorter than before, and fire fighting and rescue activities can be started promptly after the rescue vehicle arrives at the disaster site.

Further, as shown in FIGS. 1 and 2, when the outrigger beam 6b is in the stowed position, the mounting panel 7d and the movable panel 7e serve as part of the exterior panel of the vehicle body to cover the mounting location of the outrigger 6 from the outside. is no longer exposed to the outside. Therefore, the exterior design of the rescue work vehicle is enhanced. In addition, since it is prevented that a worker or the like gets into the gap between the outriggers 6, the safety is improved.

In order to prevent the movable panel 7e from unexpectedly moving with respect to the mounting panel 7d when the outrigger beams 6b are locked (retracted position and extended position), the outer edge of the movable panel 7e is positioned so that the opening 7d1 of the mounting panel 7d does not move. It is preferable to provide holding means for holding the state of contact with the peripheral portion, for example, attracting means such as a magnet and/or a mechanical locking mechanism. In this embodiment, a magnet indicated by reference numeral 7f in FIGS. 3 and 4 is provided, and a locking mechanism indicated by reference numeral 7g in FIG. A locking mechanism) is provided so that the outer edge of the movable panel 7e can be kept in contact with the peripheral edge of the opening 7d1 of the mounting panel 7d.

11 and 12 show modifications of the operating mechanism 7. FIG. The operation mechanism 7 according to these modifications has an autonomous return function of the movable panel 7e, and when the operation handle 7c is released while the movable panel 7e is moved in the extension direction of the outrigger beam 6b with respect to the mounting panel 7d, , the movable panel 7e autonomously returns to its original position, that is, to the position where it abuts against the peripheral edge of the opening 7d1 of the mounting panel 7d. In the variant shown in FIG. 11, one or more spring-loaded shafts 7e2 are attached to the movable panel 7e and the mounting panel 7d. When the movable panel 7e is moved in the extension direction of the outrigger beam 6b with respect to the mounting panel 7d, the spring 7e21 of the shaft 7e2 with the spring is compressed and elastic force is accumulated {Fig. 11(b)}. In this state, when the operating handle 7c is released, the elastic force of the spring 7e21 causes the movable panel 7e to move toward the vehicle body with respect to the mounting panel 7d and autonomously return to its original position {FIG. 11(a)}. Moreover, in the modification shown in FIG. 12, some or all of the plurality of stoppers 7e1 are replaced with stoppers 7e3 with springs. When the movable panel 7e is moved with respect to the mounting panel 7d in the extension direction of the outrigger beam 6b, the spring 7e31 of the spring-equipped stopper 7e3 is compressed and elastic force is accumulated {Fig. 12(b)}. In this state, when the operating handle 7c is released, the elastic force of the spring 7e31 causes the movable panel 7e to move toward the vehicle body with respect to the mounting panel 7d and autonomously return to its original position {FIG. 12(a)}. Since other items conform to the above-described embodiment, redundant description is omitted.

Further, the configuration and operation of the first unlocking portion and the second unlocking portion are not limited to those of the above-described embodiment and modifications, and the outrigger lock mechanism and the running lock mechanism equipped on the mounted outriggers. can be appropriately determined according to the configuration and operation of the operating lever. For example, in known outriggers, a rotating lever of a lock mechanism for traveling is provided on the side of the tip of the outrigger box, and an engaging pin that engages with an engaging claw of the rotating lever is provided on the outrigger beam. Provided on the side of the tip, with the outrigger beam in the retracted position, the rotating lever is rotated toward the vehicle body to disengage the engaging claw of the rotating lever from the engaging pin to release the lock. (The gripping lever of the outrigger lock mechanism is the same as the known outrigger shown in FIG. 13 and the above-described embodiment and modification). When the present invention is applied to an outrigger having such a configuration, when the movable panel moves a predetermined distance in the extension direction of the outrigger beam with respect to the mounting panel in conjunction with the operation of pulling the operation handle, the movable The engaging member of the unlocking portion of the lock mechanism for running provided on the inner surface side of the panel moves in the opposite direction (toward the vehicle body), and presses the rotating lever to rotate toward the vehicle body side. , constitute the unlocking portion of the running lock mechanism (the unlocking portion of the outrigger lock mechanism is the same as in the above-described embodiment and modification). This can be realized, for example, by attaching the engaging member of the unlocking portion of the running lock mechanism to the inner surface side of the movable panel via a link mechanism, a rack and pinion mechanism, or the like.

5 Outrigger Device 6 Outrigger 6a Outrigger Box 6b Outrigger Beam 6d Grip Lever 6e Rotating Lever 7 Operation Mechanism 7a First Unlocking Part 7b Second Unlocking Part 7c Operation Handle 7d Mounting Panel 7e Movable Panel

Claims (6)

An outrigger device comprising an outrigger mounted on a work vehicle and an operation mechanism provided at the tip of the outrigger,
The outrigger has an outrigger box fixed to the vehicle body of the working vehicle, a storage position where the outrigger box is attached to the outrigger box and stored in the outrigger box in a fully contracted state, and an outrigger extending from the storage position in the vehicle width direction. an outrigger beam that can extend and contract in the vehicle width direction between an overhanging position that extends outward, a jack that is provided at the tip of the outrigger beam so that it can be raised and lowered, and the outrigger beam with respect to the outrigger box. an outrigger lock mechanism capable of locking at a retracted position and the extended position; and a travel lock mechanism capable of locking the outrigger beam with respect to the outrigger box at the retracted position,
The operating mechanism includes a first unlocking portion for unlocking the outrigger beam by the outrigger lock mechanism, and a second unlocking portion for unlocking the outrigger beam by the travel lock mechanism. and an operating handle for operating the first unlocking portion and the second unlocking portion in conjunction with each other, and the second unlocking portion is operated in conjunction with the operation of pulling the operating handle in the extending direction of the outrigger beam. 1. An outrigger device for a work vehicle, wherein the first unlocking portion and the second unlocking portion are actuated to unlock the outrigger lock mechanism and the travel lock mechanism. The timing at which the outrigger lock mechanism is unlocked by the first unlocking portion is set to be simultaneous with or after the timing at which the travel lock mechanism is unlocked by the second unlocking portion. The outrigger device for a work vehicle according to claim 1. The outrigger lock mechanism has a first operating lever for operating its locking and unlocking, and the travel lock mechanism has a second operating lever for operating its locking and unlocking. The unlocking portion operates the first operating lever to unlock the outrigger lock mechanism when operated, and the second unlocking portion operates the second operating lever when operated. 3. The outrigger device for a work vehicle according to claim 1, wherein the travel lock mechanism is unlocked by moving the outrigger. The operating mechanism includes a mounting panel attached to the tip of the outrigger and an opening provided in the mounting panel from the outside. wherein the first unlocking portion and the second unlocking portion are attached to the inner surface of the movable panel, and the operating handle is attached to the outer surface of the movable panel. 4. The outrigger device for a work vehicle according to any one of 3. 5. The work vehicle according to claim 4, wherein when the outrigger beam is in the retracted position, the mounting panel and the movable panel serve as part of an exterior panel of the work vehicle and cover the mounting location of the outrigger from the outside. outrigger device. The outrigger device for a work vehicle according to any one of claims 1 to 5, wherein the work vehicle is a fire engine or a rescue vehicle.

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