JP5963183B1 - Belt conveyor equipment - Google Patents

Abstract

An object of the present invention is to provide a belt conveyor device capable of reducing the cost by making the device itself movable. Moreover, this invention makes it a subject to provide the belt conveyor apparatus which can be vertically moved and inclined and can improve workability | operativity. A body part, a movable part provided so as to be movable in a length direction of the body part, at least two support parts for supporting the body part, and a support part are provided. And a moving means for moving the main body 11. [Selection] Figure 1

Description

  The present invention relates to a belt conveyor device used for loading and unloading a vehicle.

  Conventionally, commercial facilities, warehouse facilities, and distribution facilities that handle a large amount of cargo have an area called a truck yard where vehicles such as trucks load and unload vehicles. The truck yard is provided with a plurality of loading / unloading doorways (loading docks) so that a plurality of vehicles can simultaneously carry in and out cargo.

  In general, when loading and unloading work is performed in the loading dock, a cart, a forklift, or the like is placed in a loading platform of the vehicle to load and unload the cargo. At this time, in order to eliminate gaps and height differences generated between the loading platform of the vehicle and the loading dock, a high-strength transition board is manually laid, or a device having an inclination mechanism and a lifting mechanism called a dock leveler Were installed at each loading dock.

  However, in the above method, it is necessary for the cart or forklift to reciprocate the loading platform many times until all the cargo has been loaded (or finished), which is a considerable effort for the operator. There was a problem that the working time was increased.

  In order to solve such a problem, a technique is known in which an extendable conveyor device is inserted from a loading dock into a truck bed and the cargo is conveyed into the bed (see Patent Documents 1 and 2). . In this way, by carrying the cargo by the conveyor device, it is possible to save time and labor for the carts and forklifts to reciprocate many times and to shorten the working time.

Japanese Patent Laid-Open No. 7-2367 Special table 2003-519062 gazette

  When such a conveyor device is used, there is no problem of reciprocating for transporting cargo, and the working time can be shortened, but there are also the following problems.

  First, there is a problem that the equipment cost becomes high. For example, the track loader described in Patent Document 1 and the expandable and contractible conveyor described in Patent Document 2 are configured to be used by being fixed to the loading dock, similarly to a conventional device such as a dock leveler. Therefore, it is necessary to provide an apparatus for every cargo dock in the dock yard, and there is a problem that the equipment cost becomes high. In addition, when the device is attached to the loading dock, a large-scale construction is required, which increases the cost.

Secondly, the height adjustment function is insufficient. The height of the loading dock and the height of the truck bed currently used cannot be said to be uniform nationwide, and vary depending on the type, area, and year of manufacture of the truck.
For example, a 4t truck with a low-floor body has a loading platform height of about 750 mm, but it is about 950 to 1000 mm for a large truck, and about 1400 mm for a large truck with an old-type high-floor body. Furthermore, since the loading dock is set according to the height of the truck, the height varies depending on the construction period.
As described above, although the heights of the truck bed and the loading dock are various, the conventional belt conveyor apparatus has not been provided with a height adjusting function capable of flexibly accommodating these heights. There is a problem.

  The present inventor actually visited a truck yard in a different region, and found the above problems. As a result of repeated trial and error, the belt conveyor device is provided with moving means, and the device can be used at a plurality of locations, or each support portion of the conveyor device is provided with a height adjustment function, thereby eliminating the above problem. It came to the idea of solving.

This invention makes it a subject to provide the belt conveyor apparatus which can achieve cost reduction by setting it as the structure which can move apparatus itself in view of this situation.
Moreover, this invention makes it a subject to provide the belt conveyor apparatus which can be vertically moved and inclined and can improve workability | operativity.

In order to solve the above-mentioned problems, a belt conveyor device according to the present invention is a belt conveyor device having a telescopic conveyor part, and a movable body provided so as to be movable in the length direction of the main body part and the main body part. And at least two support portions that support the main body portion, and a moving means that is provided on the support portion and moves the main body portion, and at one end in the extending direction of the movable portion, the movable portion An auxiliary support portion extending downward is provided, and the auxiliary support portion is configured such that a base end thereof is connected to the movable portion, and a free end is rotatable in the length direction of the movable portion with the base end as a fulcrum. It is characterized by.

As described above, by providing the moving means in the support portion, one device can be used in a plurality of loading docks. Therefore, it is not necessary to provide a loading / unloading device in every loading dock, and the equipment cost can be greatly reduced.
Further, by providing the moving means in the support portion, the belt conveyor device can be arranged at an optimum position for adjusting the height in accordance with the height of the loading dock or the height of the truck.

In a preferred embodiment of the present invention, the support part is provided at both ends of the main body part.
As described above, by providing the support portions at both ends of the main body portion, it is possible to prevent the belt conveyor device from easily floating even when cargo is loaded on the movable portion at the time of extension.

In a preferred embodiment of the present invention, each of the support portions is provided with a height adjusting mechanism.
In this way, by providing the height adjustment mechanism on the two support parts provided in the main body part, the height of the conveyor part can be adjusted more precisely, and it can be configured to move up and down and tilt, Workability can be improved.

In a preferred embodiment of the present invention, an auxiliary support portion is provided at one end of the movable portion in the extending direction.
In this way, by providing the auxiliary support portion at the tip of the movable portion, the conveyor portion can be supported at three locations, and the stability at the time of carrying the cargo can be improved.

In a preferred aspect of the present invention, the apparatus further includes a second movable portion provided so as to be movable in the length direction of the movable portion.
Thus, by providing the 2nd movable part and extending | stretching in 3 steps | paragraphs, it can accommodate compactly compared with the conveyor apparatus extended and contracted in 2 steps | paragraphs which have the same length at the time of expansion | extension.

The present invention can provide a belt conveyor device capable of reducing the cost by making the device itself movable.
Moreover, this invention can provide the belt conveyor apparatus which can be vertically moved and inclined and can improve workability | operativity.

It is a side view in the use condition of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. It is a side view at the time of shortening of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. It is a side view at the time of shortening of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. The arrow view of the belt conveyor apparatus which concerns on Embodiment 1 of this invention is shown, (a) is G arrow view of FIG. 3, (b) is B arrow view of FIG. 3, (c) is FIG. (D) is an F arrow view of FIG. The side view at the time of expansion | extension of the belt conveyor apparatus which concerns on Embodiment 1 of this invention is shown, (a) is an intermediate part-front-end | tip part, (b) is a rear-end part-intermediate part. It is a side view which shows the front-end | tip part of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. It is a side view which shows the rear-end part of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. It is a front view of the controller of the belt conveyor apparatus which concerns on Embodiment 1 of this invention. The use condition of the belt conveyor apparatus which concerns on Embodiment 1 of this invention is shown, (a) is at the time of shortening, (b) is at the time of expansion | extension. The height adjustment function of the belt conveyor apparatus which concerns on Embodiment 1 of this invention is shown, (a) is a mode that the conveyor part was lowered | hung, (b) is a mode that the conveyor part was leveled, (c) is It looks like the conveyor is raised. It is a side view of the belt conveyor apparatus which concerns on Embodiment 2 of this invention, (a) is at the time of shortening, (b) is at the time of expansion | extension.

  Hereinafter, the preferred embodiments 1 to 2 shown in the drawings will be described in detail. The technical scope of the present invention is not limited to the embodiments shown in the accompanying drawings, and can be appropriately changed within the scope described in the claims.

<Embodiment 1>
FIG. 1 is a side view showing a usage state of a belt conveyor apparatus A according to Embodiment 1 of the present invention. The belt conveyor device A includes a conveyor unit 1 that expands and contracts in the length direction, a support unit 2 having a moving means, and a control unit 3 that controls the conveyor unit 1 and the support unit 2. The belt conveyor apparatus A can convey the cargo C by extending the conveyor portion 1 into the loading platform T1 of the truck T.
In addition, when showing a direction after this, let the expansion | extension direction of the conveyor part 1 be the front, and let the shortening direction be back.

  As shown in FIGS. 2 and 3, the conveyor unit 1 includes a main body part 11, a movable part 12 provided so as to be movable in the length direction of the main body part 11, and the periphery of the main body part 11 and the movable part 12. And a conveyor belt 13 provided slidably.

  FIG.2 and FIG.3 is a side view which shows the state which the conveyor part 1 shortened, and has shown a mode that the movable part 12 was moved back. In FIG. 3, the conveyor belt 13 is highlighted with a bold line so that the position of the conveyor belt 13 can be easily understood.

The main body 11 has a length of 7 to 13 m, a width of 0.5 to 1.5 m, and a height of 10 to 20 cm, and is formed in a rectangular shape having a hollow portion therein.
Inside the main body 11, a motor 11 a and a rotating body 11 b for sliding the movable part 12, a motor 11 c and a rotating body 11 d for sliding the conveyor belt 13, and a track of the conveyor belt 13 are supported. The guide 11e for carrying out and the slot board 11f which hold | maintains the conveyor belt 13 from the bottom are provided.

  As shown in FIGS. 4 (a) and 4 (b), the slot plate 11f is provided on the uppermost surface of the main body 11 on which the conveyor belt 13 slides, so that the conveyor belt 13 can run without resistance. It is made of a material with low frictional resistance.

  The movable part 12 is formed to have a smaller diameter than the main body part 11 so as to be slidable in the main body part 11, and has a length of 6 to 12 m, a width of 0.4 to 1.4 m, and 8 to 18 cm. The height of The movable portion 12 includes a guide 12a for assisting the trajectory of the conveyor belt 13, a slot plate 12b that holds the conveyor belt 13 from below, a passive portion 12c that receives the rotational motion of the rotating body 11b, and a step 12d. , Is provided.

  The slot plate 12b is provided on the uppermost surface of the movable portion 12 on which the conveyor belt 13 slides. Further, as shown in FIG. 4B, the slot plate 12 b is disposed at the lower part of the slot plate 11 f of the main body portion 11. Therefore, at the boundary where the conveyor belt 13 changes from the main body portion 11 to the movable portion 12, only a step corresponding to the thickness of the slot plate 11f occurs.

  The passive portion 12c is provided on the lower surface of the movable portion 12 (see FIG. 5A), and receives the rotational movement of the rotating body 11b provided in the main body portion 11 and slides. As a result, the conveyor part 1 is comprised so that expansion-contraction is possible.

  The step 12d is attached near the tip of the movable part 12, and is provided so that a person can board and work.

  The conveyor belt 13 is formed in an annular shape, and has a width of 0.4 to 1.4 m, a circumferential length of 35 to 50 m, and a thickness of 8 to 12 mm. The conveyor belt 13 is composed of at least two layers of a material having a high coefficient of friction such as rubber and a material having a low coefficient of friction such as nylon, and the surface on which the cargo C is loaded has a high coefficient of friction. A material having a low coefficient of friction is provided on the back surface where the material comes into contact with the slit plates 11f and 12b.

  FIG. 5 is a side view showing a state where the conveyor unit 1 is extended, and shows a state in which the movable unit 12 is slid forward. At this time, the conveyor belt 13 stored so as to be folded at the time of shortening is pulled out in the extending direction. In this way, the conveyor unit 1 can be extended without changing the circumference of the conveyor belt 13 between shortening and extending.

  As shown in FIGS. 2 and 3, the support unit 2 includes a front support unit 21 provided at one front end of the main body unit 11, a rear support unit 22 provided at the other rear end of the main body unit 11, and a movable unit. 12 is provided with a tip auxiliary support portion 23 provided at one front end of 12 and an intermediate auxiliary support portion 24 provided between the front support portion 21 and the rear support portion 22.

As shown in FIGS. 4C and 6, the front support portion 21 includes a pantograph type lifter 21a, a base 21b on which the lifter 21a is installed, and a caster 21c provided on the base 21b. .
The caster 21c is configured to be able to rotate 360 degrees horizontally, and can move the belt conveyor device A in the front-rear and left-right directions.

As shown in FIGS. 4A and 7, the rear support portion 22 includes a cylinder 22a, a base 22b to which the cylinder 22a is connected, a caster 22c provided on the base 22b, a cylinder-type stopper 22d, have.
As shown in FIG. 4 (a), the stopper 22d is provided at the lower portion of the base 22b. When the belt conveyor device A is disposed at a preferred position, the stopper 22d is extended so that the belt conveyor device A The position can be fixed.

As shown in FIGS. 4D and 6, the tip auxiliary support portion 23 includes a support bar 23 a rotatably attached to the tip of the movable portion 11, and a caster 23 b provided at the lower end of the support rod 23 a. The support rod 23b and a cylinder 23c connected to the movable portion 12 are provided.
As shown in FIG. 6, in the tip auxiliary support portion 23, the support bar 23a is rotated by the expansion and contraction operation of the cylinder 23c, and the caster 23b is grounded to the floor surface of the loading platform T1.

The intermediate auxiliary support portion 24 has the same configuration as that of the tip holding support portion 23, a support rod 24a that is rotatably attached, a caster 24b that is provided at the lower end of the support rod 24a, and the support rod 24b and the main body. And a cylinder 24c provided between the portion 11 and the cylinder 11.
The tip auxiliary support portion 23 is provided at an intermediate position between the front support portion 21 and the rear support portion 22 and supports the main body portion 1 at three points to improve stability.

  The control unit 3 includes a control panel 31 in which a wireless device is incorporated, and a controller 32 that sends a signal to the control panel 31. The control unit 3 is configured to receive a signal input to the controller 32 and to control the conveyor unit 1 and the support unit 2. The controller 32 is preferably a pendant type that can be operated even from a location away from the control panel 31.

FIG. 8 shows an external front view of the controller 32, and the controller 32 is provided with buttons 32 a to 32 l for controlling the conveyor unit 1 and the support unit 2.
The button 32a is a button that sounds a buzzer before activation, and is a button that can turn on the belt conveyor device A by long pressing. The button 32b is a button for turning off the power of the belt conveyor apparatus A. Buttons 32 c and 32 d are buttons for controlling the sliding direction of the conveyor belt 13. The buttons 32 e and 32 f are buttons for controlling the expansion / contraction distance of the conveyor unit 1. The buttons 32g and 32h are buttons for controlling the height of the front support portion 21. The buttons 32 i and 32 j are buttons for controlling the height of the rear support portion 22. The button 32k is a button for changing the speed of the conveyor belt 13, and the speed of the conveyor belt 13 can be switched between high speed and low speed by pressing. The button 32 l is a button for stopping the conveyor belt 13.

  Next, the usage method of the present invention will be described in detail.

FIG. 9 shows a usage state of the belt conveyor apparatus A according to the present invention.
FIG. 9A shows a state when the conveyor unit 1 is shortened. In such a shortened state, the belt conveyor device A is moved and arranged at a preferred position for inserting the movable portion 12 into the loading platform T1.
FIG. 9B shows a state when the conveyor unit 1 is extended. When extending in this manner, the belt conveyor device A is fixed to the loading dock D using the stopper 22d or the like so that the belt conveyor device A does not move easily.

From the viewpoint of safety, it is desirable to provide various interlocks during the operation of the belt conveyor device A.
For example, when the movable part 12 is extended by 2 m or more from the state where the movable part 12 is contracted to the minimum, it is desirable to set an interlock so that the caster 23a cannot be extended any more unless it is installed on the ground. In addition, it is desirable to provide an interlock so that the conveyor belt 13 cannot be operated even when the main body 11 is expanded / contracted / lifted (tilted).

FIG. 10 shows a state in which the inclination of the conveyor unit 1 is adjusted according to the height H1 of the loading dock and the height H2 of the truck bed.
In FIG. 10A, since the height H1 of the loading dock is higher, the front support portion 21 is lowered, the rear support portion 22 is raised, and the tip of the movable portion 12 is lowered to extend.
In FIG. 10B, since the loading dock height H1 and the loading platform height H2 are the same height, the front support portion 21 is raised to the same height as the rear support portion 22, and the movable portion 12 is leveled. It is stretched.
In FIG. 10C, since the loading platform height H2 is higher, the front support portion 21 is raised higher than the rear support portion 22, and the tip of the movable portion 12 is raised to extend.
Moreover, although the example which raised the back support part 22 was shown in FIG. 10, it can be lowered | hung naturally. Therefore, the movable range of the tip of the movable part 12 is movable over a wider range than the range shown in FIG.

According to the present invention, the belt conveyor device A can be moved back and forth and left and right by providing the support unit 2 with moving means (casters). Therefore, in a truck yard provided with a plurality of loading docks D, the belt conveyor device A can be routed and used. That is, it is not necessary to install all the loading docks D, and the equipment cost can be greatly reduced as compared with the conventional method in which the devices are fixed to all the loading docks D.
Moreover, according to this invention, since it does not fix and install in the loading dock D, it is not necessary to perform attachment construction. Therefore, the construction cost can be reduced.

  In addition, according to the present invention, by providing the support portions 2 at both ends of the main body portion 11, the belt conveyor device A can easily float even when cargo is loaded on the movable portion at the time of extension. Can be suppressed. That is, it is possible to make the belt conveyor device A difficult to lift by bringing the front support portion 21 serving as a fulcrum closer to the cargo serving as a power point.

  Further, according to the present invention, since there is almost no step at the position where the conveyor belt 13 slides at the connection portion between the main body 11 and the movable portion 12, the cargo C can be easily moved even if the conveyor belt 13 is rotated in the reverse direction. Can be transported. That is, it can be naturally used not only when loading but also when unloading.

  Moreover, according to this invention, the inclination of the conveyor part 1 can be adjusted in the wide range by providing the raising / lowering function in the front support part 21 and the back support part 22. FIG. As a result, even if the height H1 of the loading dock D and the height H2 of the truck are different, the cargo C is lubricated (or unloaded) by adjusting to an appropriate inclination. Can do. That is, this invention can improve workability | operativity at the time of loading and unloading by comprising the conveyor part 1 so that a vertical movement and inclination are possible.

  Further, according to the present invention, the front support portion 21 is provided at one front end of the main body portion 11, the rear support portion 22 is provided at the other rear end, and the auxiliary tip support portion 23 is provided at the tip of the movable portion 12. Is supported at three places, the stability of the conveyor unit 1 can be improved.

  Further, according to the present invention, by providing the step 12d at the tip of the movable portion 12, the worker M can get on and work. For this reason, even when the cargo C is stacked on the truck bed, the stacking operation can be easily performed from the tip of the movable portion 12.

<Embodiment 2>
Hereinafter, the belt conveyor apparatus B of Embodiment 2 of this invention is demonstrated in detail with reference to FIG. The belt conveyor apparatus B according to the second embodiment is characterized in that a second movable portion 14 is further provided in the conveyor portion 1 of the previous embodiment. In the same embodiment, components that are basically the same as those of the previous embodiment are denoted by the same reference numerals, and description thereof is simplified.

  As shown in FIG. 11, the conveyor unit 1 according to the present embodiment includes a main body part 11, a movable part 12 movably provided in the length direction of the main body part 11, a second movable part 14, A conveyor belt 13 slidably provided around the body 11, the movable portion 12, and the second movable portion 14.

  The movable part 12 according to the present embodiment further includes a motor 12d and a rotating body 12f for sliding the second movable part 14.

  The second movable portion 14 is formed to have a smaller diameter than the movable portion 12 so as to be slidable within the movable portion 12, and has a length of 5 to 11 m, a width of 0.3 to 1.3 m, and 6 And a height of ˜16 cm.

  As shown in FIG. 11, the second movable portion 14 includes a guide 14a for assisting the track of the conveyor belt 13 that slides around, a slot plate 14b that holds the conveyor belt 13 from below, and a movable portion. And a passive portion 14c that receives the power of the rotating body 12b provided in the motor 12.

FIG. 11A is a side view showing a state in which the conveyor unit 1 is shortened. The movable unit 12 slides inside the main body unit 11, and the second movable unit 14 slides inside the movable unit 12. It shows a state.
On the other hand, FIG.10 (b) is a side view which shows the state which the conveyor part 1 expanded.

  According to the present invention, by adopting a configuration that can be expanded and contracted in three stages, it can be shortened more compactly than in the previous embodiment. Therefore, the belt conveyor apparatus B according to the present embodiment can be easily moved, and can save space even when stored in a warehouse or the like.

A, B Belt conveyor device 1 Conveyor part 11 Main body part 12 Movable part 13 Conveyor belt 14 Second movable part 2 Support part 21 Front support part 22 Rear support part 23 Front auxiliary support part 24 Intermediate auxiliary support part 3 Control part 31 Control panel 32 Controller 32a ~ l Button C Cargo D Loading dock G Ground T Truck T1 Loading platform M Worker H1 Loading dock height H2 Loading platform height

Claims (2)

A belt conveyor device having a telescopic conveyor part,
The main body,
A movable part that is provided so as to be movable in the length direction of the main body part , and a stepping board on which a person can board and work is attached to the tip ;
At least two support parts for supporting the body part;
A moving means provided on the support portion for moving the main body portion;
The support part is provided at both ends of the main body part,
Each of the support portions is provided with a height adjustment mechanism,
At one end in the extending direction of the movable part, an auxiliary support part extending downward of the movable part is provided,
The auxiliary support portion is configured such that a base end thereof is connected to a tip end of a movable portion, and a free end is configured to be rotatable rearward of the movable portion with the base end serving as a fulcrum. . And further comprising a second movable portion which is movable in the longitudinal direction of the movable portion, a belt conveyor device according to claim 1.