JPH06917U - Locomotive walk board storage device - Google Patents

Abstract

(57) [Abstract] [Purpose] The walk board is stored by effectively utilizing the tilting motion of the tiltable luggage box and the dead space of the luggage box that does not interfere with the luggage, and the engagement of the walk board regardless of the tilting of the luggage box. It is an object of the present invention to provide a walk board storage device capable of achieving ease of work removal. [Structure] A walk board storage device 21 for storing and holding a walk board 11 hung between the rear end of the cargo box 3 and the ground on the front wall 3a side of the cargo box 3 has one end 11a of the walk board 11. An engaging portion 22 for engaging the lower side of the front wall 3a from the rear of the vehicle body, and the front wall 3a
A stopper (23) for holding the other end (11b) of the step board (11) from above is provided on the upper side. Further, the stopper 23 is provided with a long and slender vertically elongated hole provided at the left and right ends of the stopper 23.
24, 24, and bolt members 25, 25 for fastening the left and right ends of the stopper 23 through the elongated holes 24 to the upper side of the left position of the front wall 3a by a fastener 26 so that they can be tightened or loosened. Are provided to connect the step board 11 to the engaging portion 22 and the stopper 23.
Is stored and held on the front wall 3a side of the packing box 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a step board storage device for a lorry.

[0002]

[Prior art]

 In general, a freight vehicle is designed to load and unload luggage on a luggage box mounted on its chassis through a walking board that extends between the rear end of the luggage box and the ground.

Then, such a walking board is removed from the rear end of the luggage box after the loading and unloading of the luggage to and from the luggage box is completed, and is provided at the rear of the rear end of the luggage box. It will be stored in a walking board storage box that has an opening that opens.

[0004]

[Problems to be solved by the device]

 By the way, when a walker board storage box is provided below the rear end of the packing box as described above, since a suspension system and rear wheels are arranged below the rear end of the packing box, interference with these is avoided. It is difficult to place the walk box in the lower part of the rear end of the luggage box while avoiding it.In addition, in the case of a freight vehicle in which the luggage box is tiltably mounted on the chassis, the walk board is not supported when the luggage box is tilted. There is a risk that the storage box will interfere with the tilting movement of the luggage box, and there has been a demand for improvements in the storage position of the walking board.

In addition, in consideration of traveling vibration, it is necessary to engage the walk board in the walk board storage box with an engaging tool or the like so that the walk board does not drop from the walk board storage box. In this case, if the step board storage box is provided below the rear end of the luggage box, the worker engages and disengages with the engaging tool in a cramped posture in which the operator leans below the rear end of the luggage box. It must be done, and its workability becomes poor.

The present invention has been made in view of the above points, and an object thereof is to walk by effectively utilizing the tilting motion of a tiltable packing box and the dead space of the packing box that does not disturb the load. It is an object of the present invention to provide a step board storage device in which the boards are stored and the workability of the step boards can be maintained regardless of the tilting of the packing box.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a solution means taken by the present invention is a step board storage device for a freight vehicle, which is mounted on a luggage box mounted on a chassis between a rear end of the luggage box and the ground. It is premised on a freight vehicle in which luggage is loaded and unloaded through the handed walk board. Then, on the front wall of the packing box, one end of the step board is engaged with the engaging portion from the rear of the vehicle body on the lower side, and the other end of the step board is embraced with the stopper holding from the upper side, respectively. Set up. Further, in the stopper, an elongated hole that allows the stopper to move upward and downward with respect to the front wall of the luggage box, and a fastening metal fitting that secures the stopper to the front wall of the luggage box through the elongated hole. Is provided, and the walk board is stored and held on the front wall side of the luggage box by the engaging portion and the stopper.

[0008]

[Action]

 With the above structure, according to the present invention, when the walking board removed from the rear end of the packing box is stored after the loading and unloading of the luggage to and from the packing box is completed, one end side of the walking board is held by the engaging portion. The lower side of the front wall is engaged from the rear of the vehicle body. Next, a stopper, which is fastened to the upper side of the front wall of the packing box by the fastening metal fittings through the long holes, releases the fastening by the fastening metal fittings and positions the fastening metal fittings at the lower end of the long holes. While moving to the upper side of the front wall of the luggage box, the other end of the walking board is held from above the floor surface of the luggage box. After that, at the position where the other end of the walk board is held, the stopper is fastened to the upper side of the front wall of the cargo box through the long hole by the fastening metal fittings so that the walk board can be stowed on the front wall side of the cargo box. Complete.

On the other hand, when the step board is removed from the front wall of the luggage box, the stopper on the upper side of the front wall of the luggage box is released from the fastening, and the stopper is moved upward along the long hole to move the walk board. Release the hug by the stopper on the other end. Then, the engagement of the one end side of the walking board by the engaging part with the lower side of the front wall of the luggage box is released by lifting the walking board upward, etc., and the removal of the walking board from the front wall side of the luggage box is completed. To do.

As a result, the walk board does not need to be stored by arranging the walk board storage box under the rear end of the load box while avoiding interference with the suspension device, rear wheels, and the like, and the tiltable load box can be stored. The walk board is stored and held in the dead space on the front wall side of the luggage box that does not interfere with the luggage without inclining the tilting motion of the.

Moreover, since the step board is stored and held on the front wall side of the luggage box by the engaging portion and the stopper, the operator can bend the downward direction of the rear end of the luggage box in a cramped posture by the engaging tool. The step board can be engaged and disengaged more smoothly and easily compared to those that were engaged and disengaged.

[0012]

[Effect of device]

 As described above, according to the step board storage device for a freight vehicle of the present invention, the engaging portion for engaging one end side of the step board with the lower side of the front wall of the luggage box from the rear of the vehicle body and the other end of the step board. The stopper is provided with a long hole capable of holding the side from above the floor of the luggage box from above, and a stopper provided with a securing metal fitting that can be secured to the upper side of the front wall of the luggage box through the elongated hole. Since the step board is stored and held on the front wall side of the box, the step board can be stored and held in the dead space on the front wall side of the load box that does not interfere with the tilting movement of the load box and luggage, and can be removed smoothly and easily. The workability of engaging and disengaging the step board can be improved.

[0013]

【Example】

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

5 to 8 show a freight vehicle using a step board storage device according to an embodiment of the present invention, in which 1 is a chassis of a vehicle V connected to a rear portion of a cabin C, and SC is on the chassis 1. Is mounted on the sub-chassis 2, 2 is a tilting frame pivotally supported at the rear end of the sub-chassis SC about a horizontal axis 2a and 3 is slid forward and backward with respect to the tilting frame 2. It is a freely supported luggage box. The packing box 3 includes a front wall 3a formed at a height substantially corresponding to the cabin C, left and right side walls 3b and 3c formed at a height approximately half the front wall 3a, and the left and right side walls. It comprises a rear wall 3d which has a pivot shaft (not shown) at its lower end and which can be opened and closed, and a floor surface 3e on which luggage can be mounted, the rear wall 3d being formed at a height substantially corresponding to 3b and 3c.

A rear end of the tilting frame 2 is connected to a rear end of a lift cylinder 4 having a base shaft 4a fixed to a substantially central portion of the sub chassis SC. It is rotatably supported around a horizontal axis 5. That is, when the lift cylinder 4 is extended, the tilting frame 2 is in a tilted state, and when the lift cylinder 4 is shortened, the tilting frame 2 is in a fallen state. Further, an extendable telescopic cylinder 6 is linked between the front end of the tilting frame 2 and the packing box 3, and the telescopic cylinder 6 extends and contracts to move the packing box relative to the tilting frame 2. 3 is designed to slide. Therefore, when loading and unloading the luggage into and from the luggage box 3, an inclination angle of the luggage box 3 that allows smooth loading and unloading of the luggage, that is, an inclination angle of the luggage box 3 with respect to the ground surface is approximately 12 °. So that the lift cylinder 4 is extended, and in this state, the telescopic cylinder 6 is extended and the load box 3 is slid backward with respect to the tilting frame 2, so that the load close to the ground surface can be obtained. The luggage is loaded and unloaded from the rear end of the box 3.

Further, as shown in FIGS. 3 and 4, at the left and right positions of the rear end portion of the packing box 3, the packing box brought closer to the ground surface by the extension of the lift cylinder 4 and the telescopic cylinder 6. A pair of left and right walking boards 11 and 11 are provided between the rear end portion 3 and the ground. Each step board 11 has an engaging groove 12 having a substantially semi-circular cross section which is engageable with the rod-like engaging portions 10 provided at the left and right positions of the rear end of the luggage box 3. It has one end portion 11a which it has, and the other end portion 11b which is formed in an acute angle in a side view so as to minimize the difference with respect to the ground surface.

As shown in FIGS. 1 and 2, a walk board storage device 21 for storing and holding each walk board 11 (having the same configuration) is provided at the left and right positions of the front wall 3a of the packing box 3. Therefore, only the left side of the vehicle body will be described). The walk board storage device 21 has left and right ends fastened to the lower side of the left side of the front wall 3a by bolts 20, ... And nuts 19, and the one end portion 11a of the walk board 11 with respect to the lower side of the front wall 3a. And a rod-shaped engaging portion 22 formed in a substantially U-shape that is long in the vehicle width direction so as to be sandwiched between the rear side of the vehicle body and the front side of the front wall 3a. It is provided with a stopper 23 having a substantially U-shaped cross section that holds the end 11a from above. The stopper 23 is provided with elongated holes 24, 24 provided in the left and right side end portions of the stopper 23 in the vertical direction and the left and right end portions of the stopper 23 through the elongated holes 24. Bolt members 25, 25 and nuts 28, 28 as fastening metal fittings for fastening to the upper side of the left side of the wall 3a, and a grip hand 27 for enabling an upward lifting operation of the stopper 23 are provided. A base end of a rod-shaped fastener 26 that allows tightening or loosening operation of the bolt member 25 is fixed to the head of each bolt member 25, and the bolt member 25 is loosened by the fastener 26. By operation, the stopper 23 is movable in the vertical direction within the elongated hole 24 with respect to the front wall 3a via each bolt member 25. In this case, the walk boards 11 and 11 removed from the left end of the rear end portion of the luggage box 3 after the loading of the luggage into the luggage box 3 is located closer to the front wall 3a than the sides of the luggage box 3 (side walls 3b and 3c). Will be stored.

In FIG. 1, reference numeral 31 is a guide panel for protecting the luggage C from falling from the upper end of the front wall 3a of the luggage box 3 into the cabin C during loading and unloading.

Therefore, in the above embodiment, when the step board 11 removed from the left end of the rear end portion of the luggage box 3 is stored after the loading and unloading of the luggage to and from the luggage box 3 is completed, as shown in FIG. After engaging the engagement groove 12 in the one end 11a of the walk plate 11 with the portion 22 in a substantially horizontal state, and then raising the other end 11b of the walk plate 11 in that state, the engaging portion The one end portion 11a of the step board 11 is engaged with the lower side of the front wall 3a left position of the luggage box 3 from the rear side of the vehicle body by 22. Next, as shown in FIG. 4, the fastening of the stopper 23 by the bolt members 25, 25 through the elongated holes 24 at the left and right ends of the packing box 3 with respect to the upper left position of the front wall 3a is performed by the fastener 26. Then, the bolt members 25 are moved to the upper end of the front wall 3a by the grip hand 27 while moving the bolt members 25 to the lower ends of the elongated holes 24 by releasing the bolt members 25 to the lower end of the oblong holes 24. The box 3 is held from above on the floor surface 3e. Thereafter, at the position where the other end side 11b of the walk board 11 is held, each bolt member 25 of the stopper 23 is fastened to the upper side of the left position of the front wall 3a through each elongated hole 24 by tightening the fastener 26. Then, the step board 11 removed from the right position of the rear end portion of the packing box 3 is also subjected to the same process, whereby the storage of the step boards 11, 11 on the front wall 3a side of the packing box 3 is completed.

On the other hand, when the walk board 11 is removed from the left position of the front wall 3a of the packing box 3, the fastening by the bolts 25 of the stopper 23 to the upper side of the left position of the front wall 3a is performed by loosening the fastener 26. The stopper 23 is released and moved to the upper side of the front wall 3a with the grip hand 27 while moving each bolt member 25 to the lower end of each oblong hole 24, and the stopper 23 of the other end 11b of the walk board 11 is used. Release the hug. Next, the engagement of the one end portion 11a of the walk plate 11 by the engagement portion 22 with the lower side of the front wall 3a left position is performed by lifting the walk plate 11 upward and the lower portion of the front wall 3a left position and the engagement portion 22. The walking board 11 released from the right position of the rear end portion of the packing box 3 is released by pulling out the packing board 3 from the front, and the walking boards 11 and 11 from the front wall 3a side of the packing box 3 are also subjected to the same process. Removal is completed.

As a result, the walk board 11 does not need to be placed and stored in the walk board storage box below the rear end of the luggage box while avoiding interference with the suspension equipment and rear wheels, and can be tilted. In addition, the step plates 11 and 11 should be stored and stored in the dead space on the front wall 3a side of the luggage box 3 that does not interfere with the luggage without inducing the tilting / sliding movement of the slidable luggage box 3. You can

Moreover, since the step boards 11 and 11 are stored and held on the front wall 3a side of the luggage box 3 by the left and right step board storage devices 21 each having the engaging portion 22 and the stopper 23, the operator can store the steps. Compared to the engaging and disengaging work with the engaging tool in a cramped posture in which the walking board 11 is bent under the rear end of the box, the engaging and disengaging work of the walk board 11 can be performed smoothly and easily. It is possible to improve the engagement / disengagement workability of 11.

The present invention is not limited to the above embodiment, but includes various other modifications. For example, in the above-described embodiment, the step board storage device 21 is applied to the luggage box 3 that is tiltable and slidable with respect to the chassis 1, but the front wall of the luggage box that is fixed immovably with respect to the chassis. It is needless to say that the step board storage device may be applied to the side or to the front wall side of the luggage box that can be tilted only with respect to the chassis.

[Brief description of drawings]

FIG. 1 is a side view of a walk board storage device as viewed from the left side of a vehicle body.

FIG. 2 is a front view of the step board storage device on the left side of the vehicle body as viewed from the rear of the vehicle body.

FIG. 3 is an explanatory diagram illustrating engagement with respect to an engagement portion of a walking board.

FIG. 4 is an explanatory diagram for explaining how the walking board is held by a stopper.

FIG. 5 is a side view of the luggage box in a collapsed state.

FIG. 6 is a view corresponding to FIG. 5 in a tilted state.

FIG. 7 is a view corresponding to FIG. 5 in a sliding state after tilting.

FIG. 8 is a perspective view of the vehicle as viewed obliquely from the rear in a sliding state after tilting the load box.

[Explanation of symbols]

 1 Chassis 3 Packing Box 3a Front Wall 11 Walk Plate 11a One End (One End) 11b The Other End (Other End) 21 Walk Board Storage Device 22 Engagement Part 23 Stopper 24 Long Hole 25 Bolt Member (Securing Metal Fitting) 28 Nut ( (Lashing metal fittings)

Claims (1)

[Scope of utility model registration request] 1. A freight vehicle in which luggage is loaded and unloaded onto a luggage box mounted on a chassis by means of a walking board that is bridged between the rear end of the luggage box and the ground. On the front wall of the luggage box, an engaging portion that engages one end side of the walk board from the rear of the vehicle body is provided on the lower side, and a stopper that holds the other end side of the walk board from the upper side is provided on the upper side. In the stopper, an elongated hole that allows the stopper to move in the vertical direction with respect to the front wall of the luggage box, and a fastening metal fitting that secures the stopper to the front wall of the luggage box through the elongated hole. Is provided,
A walk board storage device for a freight vehicle, wherein the walk board is stored and held on the front wall side of the luggage box by the engaging portion and the stopper.