JPS63137056A - Heavy conveying vehicle - Google Patents

Abstract

PURPOSE:To carry out the installing and removing operation of a large-size tire for aircraft rapidly and accurately by providing a large-size tire holding means on the deck of an operation vehicle via a link mechanism which is rotatable in horizontal and vertical directions and providing a lift-up/down driving part and a balancing mechanism on said link mechanism. CONSTITUTION:A parallel link mechanism 4 is provided on a pillar 5 erected on the deck of a self-traveling type operating vehicle and a supporting arm 9 is provided on its end part link part to provide a large-size tire holding means 22. A lift up/down driving part 10 consisting of a hydraulic actuator 12 and an arm 13 which is supported by the pillar 5 is pron the parallel link mechanism 4, and a balancing mechanism 14 consisting of a coil spring 17 and a buffer 18 is provided in between the arm 13 and the upper side link 6 of the parallel link mechanism 4. And, a large-size tire holding means 22 consisting of a tire holding roller 24 and a height adjusting mechanism 26, etc. is horizontally rotatably provided on the end part of the supporting arm 9. Thereby, the installing and removing operations of a large tire for aircraft can be carried out rapidly and accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is suitable for transporting large 11 (6 scale Irr '+) objects including large tires used in vehicles and aircraft!R,
IIt goods transportation 11 (relating to).

BACKGROUND OF THE INVENTION Since large tires used on large vehicles and aircraft have a weight of +iJ, a hand-held quiz lid as shown in FIG. 6 is used to replace them. This lifter is mounted on a planar U-shaped truck frame +00-1- equipped with casters 101, and supporting rollers 102.
Attach a pair of arms +03 with
03 is raised and lowered by a hydraulic jack 105 operated by operating a lever 104. The tire W is the support roller 102 of the pair of arms 1031-.
The replacement work is carried out by holding it up to a predetermined height by operating the hydraulic jack 105.

Problems to be Solved by the Invention Manually push the rifuku to a predetermined location to align it, then manually operate the lever 104 to hold the tire W; 1.
It has been pointed out that it is necessary to align the heights of the tires W, and that it takes a great deal of effort and time to position the tires W, resulting in poor production efficiency. Therefore, the present invention makes it possible to easily position heavy objects such as large tires when loading and unloading them.
We provide 4 and 6 goods carriers.

Means to solve the problem
A link mechanism provided in the +J function, a cargo holding stage attached to the swinging end portion of this link mechanism to hold heavy fat objects, and a lift drive provided in the link mechanism to raise and lower the cargo holding stage means, 11 interposed between the link mechanism and the luggage holding means to hold the first stage of luggage holding; 1-
Geliki and IY? The load of the object is 1'1. It is equipped with a balance mechanism that maintains the balance in the deaf state.

Loading and unloading of cargo is carried out by the horizontal rotation of the link mechanism and the swinging of the link mechanism by the lifting and lowering drive stages in the horizontal direction as well as the cargo holding stage.

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 5, 1 is a self-propelled body 11 (a deck 2 formed at the rear of the body) that is self-propelled by an engine or motor.
There is also a link machine ■ 3 that swings horizontally and vertically 1
It is placed in the first function. This link mechanism 3 is connected to the deck 21
- an ascending mechanism 4 that can swing horizontally and vertically around a support 5 installed at It consists of a link arm 9. - The μ-row mechanism 4 includes a +Wi column 5, a pair of links 6.7 formed in a straight box cross section that are pivotally supported at the upper and lower portions of the column 5, and the free ends of these links 6.7. It consists of an arm support shaft 8 connected with a pin in between, and the link arm 9 is mounted on this arm support shaft 8 so as to be able to swing freely in the horizontal direction.

Said? The lJ- row link mechanism 4 is swung in the -1- downward direction by the elevating drive means 10. This lifting/lowering drive means 10 is the main part of the column 5. A hydraulic actuator I2 has a cylinder main body 12a pivoted on a bracket 11 projecting obliquely downward at +'l<, and an arm 13 pivotably supported on a part of a support 5 in a downwardly swingable manner. Shi, front 1
The output shaft 12b of the flood hydraulic actuator 12 is connected to the middle n< of this arm 13 with a pin.

This hydraulic actuator 12 is arranged in the row %IJ with the column 5, so that the upper swing stroke of the link mechanism 4 in the row 5ji can be increased. The length 11 of the arm 13 is slightly bent diagonally in the F direction, and its tip is connected to the arm 111 of the link 6 indicated by
It is connected with a pin near the end. As a result, when the electric switch SW is operated to operate the hydraulic actuator 12, the side 4 of the moving machine is swung downward by 4 degrees. The balancing mechanism 14 includes a spring body, for example, a coil spring 17, which is elastically mounted between the vertical drive shaft 15 and the link shaft 6, which are separated into two parts, and which maintain the force of the hydraulic actuator 12. -Geriki and 'I? R+ and the load of the object are balanced in the middle of the stroke of the hydraulic actuator 12 by the deflection of the coil spring 17.

This balancing mechanism 14 is described in 15. A shock absorber 18 is installed between IG and damps vibrations of the coil spring I7.

Further, a gauge 19 for measuring the deflection rIk of the coil spring 17 is attached to the balancing mechanism 14.

Said link 6 and A1. A stopper chain 20 for regulating the expansion of the coil spring 17 is stretched between the coil spring 17 and the coil spring 17. This makes it possible to use the coil spring 17 with a large spring constant as the spring body. Even when holding an object with a load of i+7, it is possible to maintain proper balance.In addition, a handle 21 is provided protruding from the bearing portion 9a of the linfers 2 and 9. It is also possible to grip the handle 21 and freely rotate the link arm 9 in the horizontal direction along with the rotation of the 14-row link mechanism 4 in the horizontal direction.
A baggage holding means 22 is provided at the free end of the lifters 1 and 9.
There are 6 units that can be attached and detached and rotated in the water direction.

This (X:j object holding means 22 has a frame 23 and a frame 23
A pair of retainers [7-
It is equipped with a roller 24, and the 'I?' A large tire W at -1+ can be placed there. Holding roller 24 is 4\ndole 2
5, the position of the tire W can be finely adjusted. Moreover, J-r'! of the frame body 23! < is provided with a height adjustment mechanism 26, so that the height of the cargo holding step 221 can be freely adjusted in accordance with the r method of the outer diameter of the tires W to be loaded. The height adjuster 26 is arranged at an angle across the bracket 27 and the frame 23, and includes a pair of outer cylinders 28 fixed to the bracket 27 and an outer cylinder 28 fixed to the frame 23. It is equipped with a pair of inner cylinders 29 slidably fitted into the cylinder 28, and a screw mechanism 30 that adjusts the height by expanding and contracting the outer and inner cylinders 28°29 to phase I/, by operating a handle 30+J. ing. The screw mechanism 30 has an outer and an inner C
? i3! , 32, and dust may adhere to the iJ4.
Avoid being exposed to drippings. Also, +ii
Outside f, inside f? A balancer spring (not shown) is stretched in 128 and 29 to cancel the load/R from the frame body and to make it possible to easily operate the handle 30a. 11 The bracket 27 shown in "j" is equipped with a rotary disk mechanism 33 that moves the clamp lever 3 to 1. After the hook bin 35 is engaged with the notch 9b at the end of the link arm 9, the clamp lever 34 is moved to the link arm. Even when the hook bin 35 is tightened and firmly connected to the link arm 9 by tilting it down to 9J-, the object holding line 2
2. This allows for noticeable rotation in the horizontal direction.

At the center of this bracket 27, a holder 36 is rotatably mounted, which locks onto the 1st edge of the tire W and allows the tire W to fall down 11th.

37 is a support leg attached to the holding roller 24;
When the baggage holding means 22 is rotated between the storage position where it is approximately water-Tξ and the use position where it is approximately perpendicular to the surface, and when the baggage holding means 22 is removed from the lymfer A 9 and stored and stored, it can be stably placed by the supporting legs 37. It has become. Casters 38 facing toward the F side in the retracted position are attached to the support legs 37, and the frame body 2
With the caster 39 attached to the lower part of 3, the tire W
When scooping cargo onto the holding roller 24-1 or when changing a tire, the cargo holding means 22 is grounded and one person can do it! ! Even a person can easily operate it by hand. 40 is attached to the frame body 23 and rolls in contact with the side surface of the tire W.
This is a 4° guide roller. Furthermore, this luggage holding-
Handles 41 are protruded from the upper part and both sides HM of the 4:j object holding means 22, so that the 4:j object holding means 22 can be rotated, swung, or pressed in all directions.

On the other hand, a storage device 42 for equipment such as jacks is provided on the I (I) η steel surface of the body 1. This storage device 42 consists of a pair of left and right arms 43 and a hydraulic actuator 44 that operates the arms 1143.
3 makes contact with the ground in front of the front wheel 45, and 5u allows you to take in and take out the unillustrated gloss, etc.

Approximately the center of both sides of the small body 1, specifically 1it of the rear wheel 46
A tire holder 47 is arranged near the side, and the tire W can also be held in this tire holder 47.1-. The tire holder 47 is actuated by an oil 11 and an actuator 48, and is grounded near the rear wheel 46 so that the tire W can be inserted or removed. Moreover, this tire holder can be folded freely along the side of the middle rest. Approximately the center of deck 2;
A brake drum receiver 49, which is formed into an arc shape, is placed on the receiver 7, and the brake drum receiver 491-1 has a brake drum receiver 491-7 so that a brake drum (not shown) with a tonne +t can be stored in the brake drum receiver 491-. In addition, stamping mechanisms 50 and 51 are arranged at the center and rear sides of both sides of the small body 1, and when changing tires, these stamping devices 50 and 51 are grounded to the ground 11 (the body I is tilted). In order to avoid this, the stamping mechanism 5 on the rear side is equipped with a rotary type of material after the deck 2.
This allows it to be stored in l/.

Hereinafter, we will explain the case where tires are removed and transported by a large tire transport vehicle with the configuration 1-.The vehicle moves by itself to the tire removal location and stops at an appropriate position near the tire. In the middle, the link mechanism 3 is the first,
As shown in Figure 2, it is folded into two and the deck 21-
is compactly accommodated.

Next, as shown in Fig. 5, the stamping mechanism 50°51
After fixing the vehicle body 1, extend the link mechanism 3,
The holding roller 24 of the cargo holding means 22 is inserted into the lower side of the tire W. When removing this tire W, the front and rear,
The alignment in the left and right direction is performed by slightly extending or rotating the link mechanism 3, or by rotating the baggage holding means 22.

- Method 1.1- For downward adjustment, the first stage 10 of the lift drive is operated by operating the electric switch SW, and the luggage holding stage 22 is appropriately driven 1- to align the position.

Such positioning and insertion work can be easily performed with extremely little force.

After inserting the holding CI-ra 2/l into the side of the tire W, the lifting drive means 10 is actuated by the electric switch SW to raise the cargo holding means 22, and the load of the tire W causes the balancing mechanism to be activated. 14 coil springs 17 contract. So, let's check the amount of deflection of this coil spring 17! Measured at 9, >+' 4 by descending drive ruled stage 10! l
Holding the object holding means 22! The switch operation is stopped at a position where the lifting force and the load of the tire W are balanced, and the load holding means 22 is set so that an excessive holding force is not applied. After that, remove the mounting nuts etc. of the tire W and pull out the tire W.

In this case, since the load on the tire W is balanced by the contraction of the coil spring 17, the tire W can be removed very easily. Further, the impact force of the gar can be damped by the shock absorber 18. When transporting the removed tire W, the link mechanism 3 is folded into two, and the tire W is housed and held at the rear of the deck 2. Thereby, the transport stability of the tire W can be ensured at 1 minute, and the running stability and the turning radius can be improved.

On the other hand, when installing a new tire, the new tire W is loaded and transported to a predetermined position, and the tire W is suspended and extended to the installation position by the link mechanism 3 and the seven elevating drive stages 10. The slight J in the downward direction at the final stage of installing the tire W,
Adjustment can be easily achieved by deflection of the coil spring 17. That is, since the load of the tire W is easily supported by the deflection of the coil spring I7 at the neutral position where it can be moved downward, fine adjustments can be made with a light operating force. Also, the direction of rotation of the tire W is fine! I
4 adjustment is held by the handle 25 [Rotate the J-ra 24.

It can be easily fine-tuned by 4 degrees.

Effects of the Invention According to the present invention, as shown in 1z, the IrM object is supported by the link mechanism at 4° and the IrM object is held in the state 4 by the balancing mechanism ζ2. 11°, it is possible to easily and safely install and remove large tires and other +Tj fit objects, and it is also possible to transport them to a predetermined position reliably and easily. ,
Able to perform work efficiently and reliably.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention;
The figure is a side view, FIG. 3 is a perspective view of the main part, and FIG. 4 is a perspective view of the main part. FIG. 5 is a plan view and a side view showing the working state, and FIG. 6 is a perspective view showing a conventional glue stick. 1...11 (body, 2... deck, 3... link mechanism, 4... Nll-row link mechanism, 5... pillar, 9
... Link arm, 10... 7-stage lifting drive, Sato 2.
...Actuator, 14...Balancing mechanism, 22...
−; j object holding means;

Claims (6)

[Claims] (1) A link mechanism provided so as to be able to swing horizontally and vertically with respect to the deck of the vehicle body, a load holding means attached to the swinging end portion of this link mechanism to hold a heavy object, and the link Lifting drive means provided in the mechanism to raise and lower the baggage holding means, and interposed between the link mechanism and the baggage holding means to balance the lifting force of the baggage holding means and the load of the heavy object in a neutral state. A heavy goods transport vehicle equipped with a counterbalancing mechanism for holding the vehicle. (2) The link mechanism consists of a parallel link mechanism that can swing horizontally and vertically around a support installed on the deck, and a parallel link mechanism that is connected to the swinging end of the parallel link mechanism so that it can move horizontally. A heavy goods transport vehicle according to claim 1, comprising a link arm. (3) The cargo holding means includes a frame body rotatably hung vertically on the swinging end of the link mechanism, and a frame for placing heavy objects protruding approximately horizontally at a predetermined distance from the lower end of the frame. A heavy goods transportation vehicle according to claim 1, comprising a pair of holding rollers. (4) The heavy goods transport vehicle according to claim 1, wherein the elevating drive means includes an actuator that vertically swings the link mechanism. (5) The balancing mechanism consists of a spring body stretched between the mutually separated lifting drive side shaft and the link mechanism side shaft, and the lifting force of the cargo holding means and the load of the heavy object are absorbed by the deflection of the spring body. A heavy goods transport vehicle according to claim 1, which is balanced by: (6) The heavy goods transport vehicle according to claim 5, wherein the balancing mechanism includes a shock absorber between two mutually separated axes.