JPH11171347A - Article carrier device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a driving source enough driving one, make an operation easy to be performed and reduce cost by oscillating a conveyor by being supported by a work step at an end at the same time as the work step is elevated and lowered by a step elevating and lowering means. SOLUTION: A lift device 6 elevating and lowering a work step 5 is disposed on one side on a truck 2 and the work step 5 is elevated and lowered by a hydraulic driving. The work step 5 is projectingly provided at a right angle at the lower end of a supporting plate 5a suspended on the lower side via a hinge 40 at the side edge of an elevating/lowering base 6a and a wheel 41 is provided on the lower surface. The work step 5 which is elevated and lowered together with the elevating/lowering base 6a by the lift device 6 is lowered till the wheel 41 comes into contact with a deck along an end face of the truck 2. Because this carrier device has a structure that a belt conveyor 15 oscillates according to elevating and lowering of the work step 5, a conveyor elongating and contracting mechanism in which a driving source is made enough one does not exist, the structure is simple and cost can be reduced, the elevating and lowering of the work step 5 and the oscillation of the belt conveyor 15 are not required to be separately driven and an operation work is simple.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting articles, and more particularly, to a transport apparatus used for loading articles such as tires on a carrier such as a truck.

[0002]

2. Description of the Related Art An example of a conventional transport apparatus for loading a load on a carrier such as a large truck is described in Japanese Patent Application Laid-Open No. Hei 7-228357, which is shown in FIG. Transfer device 01
A conveyor 03 is provided on a cart 02 so as to be swingable, and a work table 04 on which an operator is placed is provided so as to be able to move up and down.

The swing of the conveyor 03 and the lifting and lowering of the work table 04 are performed by separate hydraulic cylinders, and the driving operations are different from each other. Truck bed as shown in Figure 6
When loading the load 08 on 09, the transport device 01 is mounted on the loading platform 09, and the load 08 conveyed by the conveyor 03 is transferred to the work table 04.
The workers who have received the cargo are sequentially stacked on the loading platform 08.

When stacking the load 08 at a low height from the loading platform 09, the conveyor 03 is inclined downward so that the leading end of the conveyor 03 is at a low position (see a two-dot chain line in FIG. 6).
When loading the luggage at a high position as shown by a solid line, the conveyor 03 is swung upward to set the tip to a high position, and a workbench is provided to make it easier for workers to work separately.
Raise 04.

[0005] The worker on the work table 04 that has been raised and raised can receive the load from the tip of the conveyor 03 at the level at hand, and easily stack the load 08 at a high position.

[0006]

[Problems to be Solved by the Invention] Thus, the conveyor 03
The swinging of the work table and the raising and lowering of the worktable 04 use separate drive systems, so the operator must operate each of them, which is troublesome and requires a separate drive source. The cost is high.

[0007] The present invention has been made in view of such a point, and an object of the present invention is to provide an easy-to-operate and low-cost article conveying apparatus.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a step lifting device mounted on one side of a bogie, and a step of lifting and lowering a worker by the step lifting device. An article comprising: a work step; and a conveyor having one end pivotally supported on the other side of the carriage and the other end supported horizontally slidably by the work step and swinging up and down in the work step. It was a transfer device.

When the step elevating means raises and lowers the work step, at the same time, the conveyor swings with one end supported by the work step, so that a single drive source can reduce the cost and facilitate the operation work. It is.

According to a second aspect of the present invention, in the article conveying apparatus according to the first aspect, an auxiliary conveyor swingably connected to a work step side end of the conveyor, and a tilt angle of the auxiliary conveyor with respect to the bogie. And a tilt angle maintaining means for maintaining the tilt angle constant.

[0011] The auxiliary conveyor connected to the end of the conveyor keeps the inclination angle with respect to the bogie even if the conveyor swings, so that if the work is at an easy angle, the auxiliary conveyor will be loaded even if the conveyor swings. Work can be performed smoothly.

According to a third aspect of the present invention, in the article transporting apparatus of the second aspect, tilt angle adjusting means for adjusting the tilt angle of the auxiliary conveyor maintained by the tilt angle maintaining means is provided. .

[0013] Since the worker riding the work steps can adjust the tilt angle of the auxiliary conveyor at hand, the operator can set the tilt angle to be the most easy to use so that the work can be performed more smoothly.

According to a fourth aspect of the present invention, in the article transport apparatus of the third aspect, the tilt angle adjusting means is adjusted by a manual operation. The structure of the tilt angle adjusting means can be simplified, and the cost can be reduced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The article transporting apparatus according to the present embodiment is a tire loader 1 for loading tires on a carrier of a large truck.

The tire loader 1 has a long rectangular carriage 2 which is supported by wheels 3 so as to be movable forward and backward, can run by a motor 4, and moves up and down a work step 5 on the carriage 2. A pantograph-type lifting device 6 is disposed near one side, and the working step 5 is moved up and down by driving a hydraulic cylinder.

The work step 5 on which the operator rides is provided at a right angle to the lower end of a support plate 5a suspended substantially vertically below a side edge of a lift 6a of the lift device 6 via a hinge 40, Wheels 41 are provided on the lower surface. The work step 5 which is lifted and lowered by the lift device 6 together with the lifting platform 6a can be lowered along the end surface of the truck 2 until the wheel 41 comes into contact with the loading platform (see FIG. 4).

As shown in FIGS. 2 and 3, a side step 5b is provided on both sides of the work step 5 via a hinge 42, and the side step 5b can be erected and fall down by the hinge 42. 5 and a chain interposed between the support plate 5a and the support plate 5a.
The horizontal state is maintained by 43.

Therefore, when the tire loader 1 is moved, the side step 5b is erected, and when the operator works, the side step 5b is laid down to enlarge the work area and facilitate the work.

A pair of left and right arm members 7, 7 protrude from the upper surface of the elevating platform 6a which is moved up and down by the lifting device 6, and are horizontally bent and extend to the same side. Each of the pair of arm members 7, 7 has a long slot 8, 8 formed in the front-rear direction in each of the horizontal portions 7a, 7a.

On the other hand, a pair of left and right bearing members 11, 11 protrude from a support table 10 provided on the opposite side of the lift device 6 of the bogie 2, and a belt conveyor is connected to the bearing members 11, 11 via a support shaft 12.
The left and right side frames 16, 16 are pivotally supported, and the tip of the side frame 16 is formed integrally with projections 16a, 16a bent at substantially right angles, and a pin is provided between the tips of the projections 16a, 16a.
17 is oriented in the left and right horizontal direction, and is penetrated therethrough.
7a slidably engages with the long holes 8,8.

Therefore, the belt conveyor 15 has one end pivotally supported by the support shaft 12 of the bearing member 11 and the other end of the protruding portion 16a having a pin 17 inserted into the long hole 8 of the arm member 7 extending from the lift 6a.
And is slidably supported through. Therefore, when the lift 6a is raised and lowered by the lift device 6, the belt conveyor
Reference numeral 15 swings up and down around the support shaft 12 as the pin 17 at the tip slides in the elongated hole 8.

The conveyor belt 18 of the belt conveyor 15 has a roll 15a rotatably provided on a roll 15a provided on the support shaft 12 and the other rotatably provided on a support shaft 19 provided on the bent end portion of the side frames 16, 16. It is wrapped around 19a.

The base end of the auxiliary roller conveyor 20 is fitted to the support shaft 19, and the auxiliary roller conveyor 20 swings integrally with the support shaft 19. The auxiliary roller conveyor 20 is a free roller 20a
Are arranged.

A worm wheel 39 is fitted on the support shaft 19 (see FIGS. 2 and 3), and a link plate 25 is rotatably supported at an end thereof. The link plate 25 is vertically long and has a link bar 27 pivotally supported at one end by a pin 26 at its upper end.
The other end is pivotally supported on the upper end of the bearing member 11 by a pin 28 and is installed in parallel with the side frame 16.

The four points of the support shafts 12, 19, the pins 26, 28 are vertices of a parallelogram, and the four sides of the side frame 16, the link bar 27, the link plate 25, and the bearing member 11 form a parallel link. I have. Therefore, the posture of the link plate 25 which is provided on the support base 10 and is always parallel to the bearing member 11 whose posture does not change does not change even if the side frame 16 swings.

A rotating shaft 31 is rotatably supported by a bearing 30 below the link plate 25, an operation handle 32 is provided at one end of the rotating shaft 31, and a pulley 33 is fitted at the other end. A pulley 36 fitted to an end of a rotating shaft 35 rotatably supported by a gear box 34 integral with 25 and the pulley 33
A belt 37 is stretched between the two. A worm 38 is fitted in the gear box 34 of the rotating shaft 35, and the worm 38 meshes with a worm wheel 39 integrated with the support shaft 19.

Accordingly, when the operating handle 32 is operated and turned, the worm 38 is rotated via the belt 37, and the worm wheel 39 meshing with the worm 38 is rotated together with the support shaft 19, so that the auxiliary shaft 19 and the auxiliary shaft 19 are integrated. The roller conveyor 20 swings to change the tilt angle. Auxiliary roller conveyor 20
The tilt angle is maintained by the worm gear boosting mechanism by the mesh between the worm 38 and the worm wheel 39.

That is, when the tilt angle of the auxiliary roller conveyor 20 is adjusted by operating the operation handle 32, the tilt posture is maintained. And since the auxiliary roller conveyor 20 supports the link plate 25 whose posture does not change to the substrate via the worm gear, the tilting posture of the auxiliary roller conveyor 20 is maintained unchanged even if the belt conveyor 15 swings. You.

FIG. 1 shows a state in which the work step 5 is elevated to a high position in the tire loader 1, and FIG. 4 shows a state in which the work step 5 is lowered to the lowest position. An auxiliary roller conveyor 50 is supported at one end by a support shaft 51 on the support base 10 and is supported by a support rod 52 that can maintain the auxiliary roller conveyor 50 while changing the tilt angle.

The present tire loader 1 is mainly constructed as described above. In practice, as shown in FIG.
A handrail 55 and an operation panel 56 are provided on the handrail 55 for use. As shown in FIG. 5, when the tire 60 is loaded on the carrier 62 of the large truck 61 using the tire loader 1, the truck 61 is moved closer to the platform 70 and the tire loader 1 is mounted on the carrier 62. The operation panel 56 is operated on the work step 5.

The tires 60 are piled up from the back side of the loading platform 62, and the tire loader 1 is mounted on the loading platform 62 with the work step 5 on the back side. The operator operates the operation panel 56, first moves the tire loader 1 itself, and sets the tire loader 1 at a work position, and then moves up and down the work step 5 from a height at which the tires 60 are loaded to a position where work is easy.

The belt conveyor 15 swings as the work step 5 moves up and down, and the auxiliary roller conveyor 20 moves up and down together with the work step 5 without changing its tilt angle. Therefore, the operator rotates the operation handle 32 and adjusts the auxiliary roller conveyor 20 in advance to a tilt angle that facilitates the work.

Then, the belt conveyer 15 is driven, and the tires 60 conveyed by the conveyer 71 on the platform 70 side by another worker are sequentially transferred to the belt conveyer 15 using the auxiliary roller conveyer 50. After being transported and sent to the auxiliary roller conveyer 20 at hand of the operator who got on the work step 5, the operator receives the tires 60 from the auxiliary roller conveyer 20 and stacks them on the loading platform 62.

As the tires 60 are stacked, the tires 60
Since the work becomes difficult when the position where the is piled becomes high, the work can be performed smoothly by raising the work step 5 and setting it at an appropriate height that facilitates the work.

The tire loader 1 has a structure in which the belt conveyor 15 swings as the work step 5 is moved up and down as the work step 5 is moved up and down. The cost can be reduced, and the operator does not need to separately operate the lifting and lowering of the work steps and the swinging of the belt conveyor to drive them separately, so that the operation work is simple.

The auxiliary roller conveyor 20 connected to the end of the belt conveyor 15 keeps a constant tilt angle with respect to the carriage 2 even if the belt conveyor 15 swings. If the angle is set to an angle that is easy for the operator to work, it is not necessary to adjust every time the belt conveyor 15 swings, which is convenient, and the loading operation can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is an overall side view of a tire loader according to an embodiment of the present invention.

FIG. 2 is a plan view of the same part.

FIG. 3 is a perspective view of the same.

FIG. 4 is an overall side view of the tire loader in another state.

FIG. 5 is a diagram showing a state where the present tire loader is used for loading a large truck onto a carrier.

FIG. 6 is a diagram showing a state where a loading operation is performed using a conventional transport device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tire loader, 2 ... Truck, 3 ... Wheel, 4 ... Motor, 5 ... Work step, 6 ... Lifting device, 7 ... Arm member, 8 ... Long hole, 10 ... Support base, 11 ... Bearing member, 12 ... Support axis,
15 ... belt conveyor, 16 ... side frame, 17 ... pin,
18 ... conveyor belt, 19 ... support shaft, 20 ... auxiliary roller conveyor, 25 ... link plate, 26 ... pin, 27 ... link bar, 28 ... pin, 30 ... bearing, 31 ... rotating shaft, 32 ... operation handle, 33 ... Pulley, 34 ... gear box, 35 ... rotating shaft, 36 ... pulley, 37
... belts, 38 ... worms, 39 ... worm wheels, 40 ...
Hinge, 41 ... Wheel, 42 ... Hinge, 43 ... Chain, 50 ... Auxiliary roller conveyor, 51 ... Support shaft, 52 ... Support rod, 55 ... Handrail, 56 ... Operation panel, 60 ... Tire, 61 ... Truck, 62 ... Carrier , 70… platform, 71… conveyor.

Claims (4)

[Claims] 1. A step lifting means mounted on one side of a truck, a work step of lifting and lowering a worker by the step lifting means, one end of which is pivotally supported on the other side of the carriage, and A conveyor supported slidably in the horizontal direction in the work step and swinging up and down in the vertical movement of the work step. 2. An auxiliary conveyor swingably connected to a work step side end of the conveyor, and a tilt angle maintaining means for maintaining a constant tilt angle of the auxiliary conveyor with respect to the bogie. The article conveying device according to claim 1, wherein: 3. The article conveying apparatus according to claim 2, further comprising a tilt angle adjusting means for adjusting a tilt angle of said auxiliary conveyor maintained by said tilt angle maintaining means. 4. The article conveying apparatus according to claim 3, wherein said tilt angle adjusting means is adjusted by a manual operation.