JPH01127426A - Heavy material carrier - Google Patents

Abstract

PURPOSE:To facilitate loading/unloading and to stabilize carriage of large tyre and brake drum by loading/unloading a heavy material through horizontal/ vertical operation of a link mechanism and horizontal rolling operation of a cargo holding means, while carrying a heavy cylindrical material through an arched tray. CONSTITUTION:When a tyre W held by a cargo holding means 17 is unloaded from a deck 2 and replaced, vehicle body 1 is secured through a stumping mechanism 47 then the tyre W is positioned easily through vertical operation of a lifting/lowering drive means 10 and expanding/shrinking operation of a parallel link mechanism 3 accompanied with horizontal rotation. Mounting/ dismounting work of a brake drum B is also made easily and simultaneously with replacing work of tyre W, by suspending the drum B from the end of an arm 9 through a wire, chain and the like with the link arm 9 being removed from the holding means 17. Since the drum B is received on a pad 35 of a heavy material mounting tray 33 when it is carried, the drum 13 is not damaged and an arched cargo receiving face receives a cylindrical drum B without causing rolling thus enabling stable holding of drum B.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heavy goods transport vehicle for transporting various heavy goods, including large tires used in large vehicles and aircraft (1).

BACKGROUND OF THE INVENTION Since large tires used on large vehicles and aircraft are quite heavy, a hand-push type lid as shown in FIG. 10 is used to replace them. This lifter has a flat U-shaped truck frame 1 equipped with casters +01.
A pair of arms 103 having support rollers IQ2 on the upper surface are attached to the lever 10.
It is designed to be raised and lowered by a hydraulic jack 105 operated by the operation of step 4. The tire W is placed on the support rollers 102 on the pair of arms 103, and is lifted to a predetermined height by operating a hydraulic jack 105 for replacement.

Problems to be Solved by the Invention It is necessary to manually push the lifter to a predetermined location to align the position, and then manually operate the lever 104 to lift the tire W and adjust the height. It has been pointed out that this method requires a great deal of effort and time, resulting in poor work efficiency. In addition, when replacing a large tire W and a heavy brake drum that coaxially connects the tire W, there is the hassle of having to separately transport and replace the brake drum. be.

In addition, this brake drum is cylindrical and has a bracket on the negative side to connect the brake rod, etc., and the center of gravity is biased to one side, making it unstable, so it is difficult to transport it with a lid. The problem that it is not easy has also been criticized.

Therefore, the present invention enables easy alignment during loading and unloading of heavy objects such as large tires, and also allows stable transportation of cylindrical heavy objects such as large brake drums attached to the large tires. The purpose is to provide a heavy physical transport vehicle that can carry out heavy physical transport.

Means for solving the problem A link mechanism is arranged on the deck of the vehicle body so that it can swing freely in the horizontal and vertical directions, and a link arm is attached to the free end of the link mechanism to rotate in the horizontal direction. The link arms are movably connected, and a load holding means for holding a heavy object is removably suspended from the end of this link arm. Further, a cargo holding part is rotatably mounted on the side part of the vehicle body so that the rear end can touch the ground, and a cargo receiving part is formed with an arcuate surface on the cargo holding part. A heavy object tray for placing a cylindrical heavy object on the surface is removably attached.

Loading and unloading of load is performed by horizontal rotation and vertical swing of the link mechanism and link arm, and at this time, the load holding means is free to rotate horizontally with respect to the end of the link arm. be moved. In addition, when storing a cylindrical heavy object on the cargo holding section, a heavy object loading tray is placed on the cargo holding section, and the arc-shaped cargo tray is used for storing the cylindrical heavy object on the surface. be placed.

EXAMPLES Hereinafter, examples of the present invention will be described in detail by taking a large tire carrier as an example.

In Figures 1 to 9, reference numeral 1 denotes a vehicle body that is self-propelled by an engine or motor, and a link mechanism is installed on a deck 2 formed at the rear of the vehicle in horizontal and vertical directions around a support 5 erected on the deck 2. Parallel link mechanism 3 that can swing to
It is arranged. This parallel link mechanism 3 includes the pillar 5
It consists of a pair of links 6.7 formed in the cross section of a straight box that are pivotally supported at the upper and lower parts of the support column 5, and an arm support shaft 8 that is connected with a pin between the free ends of these links 6.7. A link arm 9 is attached to this arm support shaft 8 so as to be swingable in the horizontal direction.

The parallel link mechanism 3 is configured to be swung in the vertical direction by an elevating drive means 10.

This lifting/lowering driving means 10 includes a hydraulic actuator 12 which has a cylinder body 12 & pivoted on a bracket 11 projecting diagonally downward from the bottom of the support 5, and an arm 13 which is supported pivotably on the top of the support 5 so as to be able to swing vertically. The output shaft 12b of the hydraulic actuator 12 is connected to the intermediate portion of the arm 13 with a pin. The extending portion of the arm 13 is bent slightly diagonally downward, and its tip is connected to the balance machine +h'l14.
A pin is connected to the vicinity of the free end of the link 6 via the link 6.

Thereby, when the hydraulic actuator 12 is actuated by operating an electric switch (not shown), the parallel link mechanism 3 swings in the vertical direction.

The balancing mechanism 14 includes a strut-type shock absorber 15 and a coil spring 16, and is connected to the hydraulic actuator 12.
The upward lifting force of the coil spring 1 and the load of the heavy object are
The deflection of the hydraulic actuator 6 balances the hydraulic actuator 12 in the middle of its stroke. A cargo holding means 17 is suspended from the free end of the link arm via a rotating disk mechanism 27, which will be described later, so that it can be attached and detached and rotated in the horizontal direction. The baggage holding means 17 includes a frame 18 and a pair of holding rollers 19 projecting approximately horizontally from the lower end of the frame 18.
A large and heavy tire W can be placed astride the tires 9 and 19. These holding rollers 19 are rotated by a handle 20 so that the position of the tire W in the rotational direction can be finely adjusted. A screw mechanism 22 is actuated at the top of the frame 18 by operating a handle 22a, and the pair of inner and outer cylinders 23 and 24 are expanded and contracted to form a cargo holding means! A height adjustment mechanism 21 is provided to adjust the height of the tire 7 according to the outer diameter dimension of the tires W to be loaded. 25
is a holder attached to the upper end of the cargo holding means 17, specifically, the top end plate 26 of the height adjustment mechanism 21, and
It locks onto the upper edge of the tire W to prevent it from falling. The rotating disk mechanism 27 is attached to the top end plate 26, engages the support shaft of a clamp lever 28 with the link arm 9, and rotates the cargo holding means 17 toward the end of the link arm 9 by tilting the clamp lever 28. They can be connected freely.

On the other hand, approximately in the center of both sides of the vehicle body 1, there is provided a luggage holding part 30 which is rotatably connected to the support shaft 29 and whose rear end can touch the ground. Also, a large tire W can be fixed and held. The cargo holding section 30 is rotated by a hydraulic actuator 31, and the support shaft 29 can be folded into the side of the vehicle body 1 together with the cargo holding section 30 by an actuator 31 (not shown). Reinforcement plates 32 are obliquely joined to both corners of the upper surface of the luggage holding section 30.
It is designed so that the tire W can be stopped. Reference numeral 33 denotes a heavy material loading tray on which cylindrical heavy objects are placed, such as large tires W used in the aircraft and large brake drums B attached thereto, which can be detachably attached to the cargo holding section 30. It is installed. This heavy load tray 33 has a pad 35 made of an elastic material such as rubber attached to the upper side of a tray body 34 made of a metal plate.
．． The pad 35 is curved to fit the outer diameter of the brake drum B, and the baggage receptacle formed by the pad 35 has an arcuate surface. A leg frame 36 is connected to the lower surface of the tray body 35 and engages from the upper surface of the cargo holding section 30 to the reinforcing plates 32 on both sides, thereby preventing the heavy object tray 33 from shaking on the cargo holding section 30. It can be placed in place without causing any problems. Also, this tray body 3
The lock plate 3 has a locking pin 37 protruding from the rear part of the lower surface of one side of the lock plate 5, and has a notch 39 formed on the other side edge.
The reinforcing plate 32 on one side of the baggage holding part 30 is formed with a locating hole 40 in which the locking pin 37 engages, and the locking plate is formed on the other side edge. 38 is provided with a lever fastener 41 for fixing it. This lever fastener 41 is attached to the base plate 42.
It includes a hook 43 that projects upward and engages with the notch 39 of the lock plate 38, and a link 45 that is clamped to the hook 43 by pushing down a lever 44 and fixes the lock plate 38. Reference numeral 46 denotes a storage device disposed at the lower front side of the vehicle body l, and a pair of arms 46a are grounded to allow equipment such as jacks (not shown) to be taken in and out.

According to the large tire carrier having the above-described structure,
When the tire W held on the cargo holding means 17 is lowered from the deck 2 to change the tire, the car body l is fixed by the stamping mechanism 47 attached to the side of the car body l, and then the vertical movement operation by the elevating drive means lO is performed. , parallel link mechanism 3
It is possible to easily align the tire W by an expansion/contraction operation accompanied by horizontal rotation. Here, the tire W is suspended by the parallel link mechanism 3 together with the cargo holding means 17, but the coil spring 16 of the balancing mechanism 14 is bent and the load of the tire W and the lifting force of the lifting drive means 10 are balanced. Since the tire W is suspended with a neutral load, the tire W can be slightly adjusted vertically or tilted with a light operating force, and replacement work can be easily performed. On the other hand, when storing the cargo holding means 17 alone or together with the tire W at a fixed location for 1°, the cargo holding means 17 can be easily removed from the end of the link arm 9 by warming the clamp lever 28. Since it is possible, the luggage holding means 17
After the clamp lever 28 is moved to a predetermined location and grounded by the link arm 9, the work can be easily performed by loosening the clamp lever 28.

On the other hand, in addition to the tire W replacement work, the brake drum B can also be attached and removed by attaching the brake drum B to the end of the link arm 9 with a wire, chain, etc., with the cargo holding means 17 removed from the link arm 9. It can be easily carried out by hanging it. Further, when transporting this heavy cylindrical brake drum B, it can be safely carried out by placing it on the cargo holding section 30 using the heavy object tray 33.

Specifically, the locking pin 37 of the heavy object tray 33 is inserted into the locating hole 40 of the reinforcing plate 32.

At the same time, the lock plate 38 is fixed on the load holding part 30 by fixing it with the lever fastener 41. Therefore, the brake drum B can be lifted and transferred onto the heavy load tray 33 by the link arm 9. Then, secure it with a belt clamp (not shown). Here, the four-heavy object tray 33 receives the brake drum B with the pad 35, so it does not damage the brake drum B, and
Since the cargo receiver is formed in an arc shape, the cylindrical brake drum B can be placed in place without rolling, and the brake drum B can be stably held. The heavy object tray 33 may remain mounted on the cargo holding section 30 when not in use, or may be removed and stored in an extra space on the deck 2.

Effects of the Invention As described above, according to the present invention, loading and unloading of heavy objects can be easily carried out by swinging the link mechanism and link arm in the horizontal and vertical directions, and by swinging the load holding means in the horizontal direction. By being able to align the positions, it is possible to save labor and speed up loading and unloading operations. In addition, when transporting cylindrical heavy objects, a heavy object placement tray can be fixed on the cargo holding part on the side of the vehicle body, and the heavy object can be placed on this heavy object placement tray. Since the loading tray has an arcuate surface, it is possible to stably store a cylindrical heavy object without having to move it, and it can be transported safely. Further, since the heavy object tray is detachable from the baggage holding section, it can be removed and stored on the vehicle body deck when not in use, and does not unnecessarily occupy the baggage holding section.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a perspective view showing the relationship between the luggage holding section and the heavy object tray, and FIG. A sectional view taken along the line IV-IV in the figure, FIG. 5 is a perspective view of the tray for placing important items, as seen from the back side, FIGS. 6 and 7 are side views of the lever fastener, and FIG. 8 is for taking in luggage. 9 is a side view of the same, and FIG. 10 is a perspective view of the conventional lift lid. 1...Vehicle body, 2...Deck, 3...Link mechanism, 9
... Link arm, 17 - Baggage holding means, 3o...
- Luggage holding section, 33...heavy object loading tray. Figure 3 Figure 4 jl,' jbj4 36 40 Figure 5 Figure 6 Figure 7 Figure 1O

Claims (1)

[Claims] (1) A link mechanism disposed on the deck of the vehicle body so as to be swingable in the horizontal and vertical directions; a link arm connected to the free end of the link mechanism so as to be pivotable in the horizontal direction;
A load holding means is detachably hung from the free end of the link arm to hold a heavy object, and a load holding part is rotatably attached to the side of the vehicle body so that its rear end can touch the ground, and ,
A load receiving surface is formed in an arc shape on the load holding part,
A heavy goods transport vehicle characterized in that a heavy goods placement tray for placing a cylindrical heavy goods on the load receiving surface is removably attached.