JP2002274248A - Load receiving deck elevating/sinking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a load receiving deck elevating/sinking device of such a structure that a slide member is installed inside guide members in such a way as elevated and sunk by a cylinder and a load receiving table is installed in the lower part of the slide member, in which mounting and removal of the slide member can be made simply and easily at the time of parts repair or in the replacing works. SOLUTION: A lower bracket 31 to bear the base part of an elevating/sinking cylinder 8 is removably fixed by bolt 34 and nut 35 to a lower reinforcing girder 16 installed between the bottoms of the guide members 6 on the left and right.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading / unloading device for lifting a loading platform between a ground surface and a loading platform on the side of a truck such as a truck.

[0002]

2. Description of the Related Art As shown in FIGS. 19 and 20, a conventional lifting / lowering device for a receiving stand is provided with a slide member 03 via a plurality of rollers 02 on a pair of left and right guide members 01 fixed to the vehicle side.
The load receiving table 04 is mounted horizontally below the slide member 03, and the lifting cylinder 0
5, the loading table 04 is moved up and down. The rollers 02 of the slide member 03 project from both left and right side surfaces of the slide member 03, and the lifting cylinder 05 has a base fixed to a lower part of the guide member 01 by a bracket 0.
6 and the tip of the rod 07 is supported by a bracket 08 fixed to the upper part of the slide member 03, so that the slide member 03 and the lifting cylinder 05 are lifted.
Are arranged on the substantially same vertical plane as the guide member 01 between the left and right guide members 01, so that the entire elevating device can be made compact so that it can be easily mounted on a vehicle.

[0003]

By the way, in the above-mentioned cargo handling device, when parts such as the roller 02 of the slide member 03 are damaged, the slide member 03 is moved to the guide member 01.
It is necessary to remove the lower end of the roller and replace the roller 02 and the like. However, in the conventional structure, since the bracket 06 for pivotally supporting the base of the lifting / lowering cylinder 05 protrudes rearward, when the slide member 03 is moved downward along the guide member 01, the upper end of the slide member 03 is reinforced. Digit 09
However, there is a problem that it cannot be moved downward due to interference with the bracket 06.

In order to solve the above problem, a bracket 06 is used.
It is conceivable to shift the mounting position in the front-rear direction. However, in this case, a problem arises that the elevating device becomes large, and the assembling work to the vehicle becomes difficult. SUMMARY OF THE INVENTION The present invention provides a lifting and lowering device for a loading tray, which makes the entire device compact and allows the slide member to be easily attached and detached.

[0005]

SUMMARY OF THE INVENTION The present invention provides a pair of left and right guide members fixed to a vehicle body, a slide member capable of moving up and down in the guide member, a lifting cylinder capable of moving up and down the slide member, A load receiving table provided substantially horizontally at a lower end of the slide member, wherein the slide member and the lifting / lowering cylinder are disposed on the same vertical plane as the guide member between left and right guide members; In the platform elevating device, the elevating cylinder has one end connected to an upper portion on a slide member side and the other end connected to a mounting member detachably provided at a lower portion on a guide member side. Things. Thus, when the slide member is removed from the guide member, the upper portion of the slide member does not interfere with the mounting member, and the slide member can be easily attached and detached.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a side view of a fire truck 1, and a loading tray elevating device 3 is provided at the rear of the bed 2 of the fire truck 1.
Are arranged in the packing box 4. The loading tray lifting device 3 includes:
As shown in FIGS. 2 to 9, a pair of left and right guide members 6 provided at the rear end of the vehicle body 5, a slide member 7 that moves up and down along the guide member 6, and a lifting cylinder 8 that moves the slide member 7 up and down And a loading table 9 mounted horizontally below the slide member 7 so that the loading table 9 can be raised and lowered between the loading platform 2 surface and the ground by the expansion and contraction operation of the lifting cylinder 8. . The slide member 7
The lifting cylinder 8 is disposed on the substantially same vertical plane as the guide member 6 between the left and right guide members 6, so that the entire lifting device can be made compact so that it can be easily mounted on a vehicle. is there.

[0010] Reference numeral 10 denotes a two-wheel hose car mounted on the cargo receiving table 9. The hose car 10 rotatably supports wheels 12 on both right and left sides of a hose car body 11 as shown in FIGS. 10 and 11. A hose for water discharge (not shown) is housed in the hose car body 11 in a wound state. Reference numeral 13 denotes a handle provided on the hose car body 11 so that the hose car 10 can be moved by holding the handle 13.

As shown in FIG. 3, each of the pair of guide members 6 is formed of a channel material having a groove 14. Each of the guide members 6 is fixed to a rear portion of the vehicle body 5 with the grooves 14 facing each other. The guide member 6 has an upper reinforcing girder 1 erected so as to close an upper end opening thereof.
5 and a lower reinforcing girder 16 erected on the front surface of the lower end.

The sliding member 7 is formed in a box shape in cross section, and the reinforcing girder 1 erected between its upper ends.
7, the left and right slide members 7 are reinforced and supported. A plurality of rollers 19 having guide plates 18 are rotatably protruded from both left and right sides of the slide member 7, and the rollers 19 are rotatably introduced into the concave grooves 14 of the guide member 6. The slide member 7 is held by the guide member 6 via the rollers 19 so as to be able to move up and down.

Reference numeral 20 denotes a securing device for securing the slide member 7 at the highest position. The securing device 20 is provided on the outer surface of the guide member 6 as shown in FIGS. A boss member 21 and a securing member 22 inserted into the boss member 21 and capable of horizontally projecting and retracting toward the guide member 6
By moving the operation lever 23 fixed to the outer end of the securing member 22 inward, the inner end of the securing member 22 protrudes and the engagement hole formed in the slide member 7 is formed. 24. Reference numeral 25 denotes a lock pin, which is a hole 26 formed in the boss member 21 and a locking member 2.
The locking member 22 is locked at a protruding position (FIG. 12) or a retracted position (FIG. 13) by inserting a lock pin 25 into a hole 27 formed in the hole 2. Reference numeral 28 denotes a flange member, which restricts the movement of the securing member 22 inward from the projecting position by the flange member 28 abutting on the outer surface of the boss member 21 when the securing member 22 is moved to the projecting position. It is supposed to.

As a result, when the vehicle is running, the lifting cylinder 8
Thus, the danger of the slide member 7 being lowered due to oil leakage or the like can be reliably prevented. The lifting cylinder 8 is disposed at an intermediate portion between the pair of left and right guide members 6 as shown in FIGS. 3 and 7, and the tip of the rod 29 of the lifting cylinder 8 is attached to the reinforcing girder 17 of the slide member 7. While being supported by the upper bracket 30 protruding from the lower surface, the base of the lifting cylinder 8 is supported by the lower bracket 31 which is a mounting member fixed to the rear surface of the lower reinforcing girder 16 of the guide member 6. The slide member 7 is raised and lowered by extending and retracting the rod 29 of the lifting cylinder 8.

The lower bracket 31 is formed by fixing a shaft support 33 for supporting the base of the elevating cylinder 8 to a substrate 32 formed in a flat plate shape as shown in FIG.
2 is detachably fixed to the lower reinforcing girder 16 by bolts 34 and nuts 35 with the back surface of the second abutment against the rear surface of the lower reinforcing girder 16. Reference numeral 36 denotes a contact plate protruding from the back surface of the substrate 32, and the contact plate 3 is attached when the lower bracket 31 is attached.
6 by applying the lower surface of 6 to the upper surface of the lower reinforcing girder 16,
The vertical position of the lower bracket 31 can be easily adjusted.

When the slide member 7 is pulled out from below the guide member 6 during the maintenance work, the lifting cylinder 8 and the lower bracket 31 are removed from the guide member 6 as shown in FIG. The beam 17 can be prevented from interfering with the lower bracket 31, and the work of attaching and detaching the slide member 7 can be performed easily and easily.

As shown in FIG. 4, the receiving table 9 comprises a pair of left and right vertical frames 37 and a pair of front and rear horizontal frames 38 fixed between the vertical frames 37 in a grid pattern. The base end of 37 is fixed substantially horizontally to the lower end of the slide member 7, and the loading table 9 moves up and down together with the slide member 7. The height H1 of the vertical frame 37 and the horizontal frame 38 is shorter than the ground height H2 of the lower surface of the hose car body 11, as shown in FIG. The hose car body 11 is formed on the upper surfaces of the vertical frame 37 and the horizontal frame 38 so that the hose car 10 can be loaded and unloaded. This is Horsecar 1
When lowering 0 to the ground, the wheels 12 of the hose car 10 are grounded before the loading stand 9 is grounded, so that the unloading operation of the hose car 10 can be performed quickly. In addition, receiving stand 9
Are formed in a grid shape, so that the loading / unloading device 3
The overall weight can be reduced.

Reference numeral 39 denotes an auxiliary receiving tray. The auxiliary receiving tray 39 has a flat mounting surface 40 which is wider than the loading base 9 as shown in FIGS. 40
A rectangular recess 41 is formed on the lower surface of the base. Thus, the recess 41 is fitted into the receiving table 9, and the receiving table 9
Mounting bracket 42 fixed to the inner surface of vertical frame 37
By connecting and fixing the mounting bracket 43 fixed to the recess 41 of the auxiliary load receiving table 39 with the bolts 44 and the nuts 45, the auxiliary receiving table 39 can be fixed to the load receiving table 9.

A tapered inclined surface 46 is formed at the leading end of the auxiliary loading tray 39, and the auxiliary loading tray 39 is grounded as shown in FIG. Above the ground is the height H1 of the receiving platform 9
The lower cart 47 can be loaded and unloaded. Further, since the width of the auxiliary receiving tray is wider than the receiving tray, the loading / unloading operation can be performed even for a wide load.

In the present embodiment, the receiving table is formed in a lattice shape. However, a similar effect can be obtained by forming the receiving table in a flat plate shape. In this embodiment, the tip of the lifting cylinder is connected to the slide member, and the base is connected to the guide member. However, the tip of the lifting cylinder is connected to the guide member, and the base is connected to the slide member. Even if they are connected, they have the same function and effect. Further, in this embodiment, the loading / unloading device is mounted on the fire engine,
Even when mounted on a vehicle such as a lorry, it has the same function and effect.

The operation of the present invention having the above-described structure will now be described. When lowering the hose car 10 mounted on the loading tray 9 from the running state of FIG.
0 to release the locking of the slide member 7. In order to release the securing, the lock pin 25 is pulled out from the hole 26 of the boss member 21 from the securing state shown in FIG.
To the retreat position to release the engagement between the inner end of the securing member 22 and the engagement hole 24 of the slide member 7. When the lock pin 25 is inserted again through the hole 26 of the boss member 21 in this state, the lock pin 25 passes through the hole 27 of the securing member 22 as shown in FIG. 13, and the securing member 22 is locked at the retracted position. As a result, the slide member 7 is released from the binding and can be lowered.

Next, when the lifting cylinder 8 is contracted, the loading table 9 descends together with the slide member 7 and descends immediately before the loading table 9 is grounded, and the wheels 12 of the hose car 10 are grounded as shown in FIG. When the wheels 12 touch the ground, the retracting operation of the lifting cylinder 8 is stopped, and the hose car 1
0 is pulled out from the loading tray 9 and lowered to the ground. At this time, since the hose car 10 can be lowered to the ground before the loading table 9 is grounded, the unloading operation of the hose car 10 can be performed quickly.

When the hose car 10 is loaded on the fire engine 1 from the ground, the operation is performed in the reverse order. Next, the auxiliary receiving tray 39
When loading the cart 47 into the fire truck 1 by using the? Auxiliary carrier 3
As shown in FIG. 15, the auxiliary loading tray 39 is mounted on the upper surface of the loading tray 9 so as to fit the loading tray 9 into the recess 41, and the mounting bracket 42 of the loading tray 9 is attached to the auxiliary loading tray 39. The mounting bracket 43 is brought into contact. In this state, bolt 4
The mounting brackets 42 and 43 are connected and fixed by the nut 4 and the nut 45, and the auxiliary receiving tray 39 is fixed to the receiving tray 9. In this state, after lowering the auxiliary receiving tray 39 to the ground,
As shown in FIG. 8, the cart 4
7 on the mounting surface 40 of the auxiliary receiving tray 39
The cart 47 is loaded.

By the way, the loading tray elevating device 3 periodically repairs parts such as the rollers 19 of the slide member 7 or replaces them. In this case, the slide member 7 is detached from the guide member 6 and repair is performed. . Hereinafter, the operation of removing the slide member 7 will be described. First, the securing of the slide member 7 by the securing device 20 is released as described above, and the lifting cylinder 8 is removed from the upper bracket 30 and the lower bracket 31. Next, the screw engagement between the bolt 34 and the nut 35 to which the lower bracket 31 is fixed is released, and the lower bracket 31 is removed from the lower reinforcing girder 16 of the guide member 6 as shown in FIG. When the slide member 7 is moved downward in this state, the slide member 7 can be removed from the lower end of the guide member 6.

At this time, the reinforcing girder 17 of the slide member 7 is
Since it does not interfere with the lower bracket 31 of the guide member 6, the slide member 7 can be easily and easily removed. After removing the slide member 7, repair or replacement work of the roller 19 and the like is performed.

[0023]

As described above, according to the present invention, the bracket is detachably provided at the lower portion of the guide member, and the base or the tip of the elevating cylinder is provided at the bracket, so that the slide member can be removed from the guide member. By removing the bracket from the guide member, the upper portion of the slide member does not interfere with the bracket, and the slide member can be easily and easily removed.

[Brief description of the drawings]

FIG. 1 is an overall side view of a fire truck.

FIG. 2 is a side view of the loading tray elevating device.

FIG. 3 is a front view of the loading tray elevating device.

FIG. 4 is a plan view of the loading tray elevating device.

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is a sectional view taken along line BB of FIG. 3;

FIG. 7 is a sectional view taken along the line CC of FIG. 3;

FIG. 8 is a side view of the loading tray elevating device showing a lowered state of the loading tray.

FIG. 9 is a sectional view of FIG. 8;

FIG. 10 is an operation state diagram at the time of unloading a hose car.

FIG. 11 is a DD diagram of FIG. 10;

FIG. 12 is an enlarged plan view of a main part showing a protruding state of the lashing device.

FIG. 13 is an enlarged plan view of a main part showing the lashing device in a retracted state.

FIG. 14 is a cross-sectional view showing a state where a slide member is removed.

FIG. 15 is an operation state diagram at the time of attaching the auxiliary load receiving tray.

FIG. 16 is a plan view of the loading tray elevating device when the auxiliary loading tray is used.

FIG. 17 is a sectional view taken along the line EE of FIG. 16;

FIG. 18 is an operation state diagram showing a state where the cart is placed on the auxiliary loading tray.

FIG. 19 is a front view of a conventional loading tray elevating device.

FIG. 20 is a sectional view taken along line FF of FIG. 19;

[Explanation of symbols]

 Reference Signs List 3 Receiving stand elevating device 5 Body 6 Guide member 7 Slide member 8 Elevating cylinder 9 Receiving stand 31 Lower bracket (mounting member)

Claims (1)

[Claims] A pair of left and right guide members fixed to a vehicle body; a slide member capable of moving up and down in the guide members;
An elevating cylinder capable of elevating the sliding member, and a load receiving table provided substantially horizontally at the lower end of the sliding member, wherein the sliding member and the elevating cylinder are disposed between left and right guide members, and a guide member is provided. In the lifting / lowering device arranged on substantially the same vertical plane, the lifting cylinder has one end connected to the upper part on the slide member side and the other end detachably provided on the lower part on the guide member side. A loading stand raising / lowering device, which is connected to a mounting member.