Material or article handling – Self-loading or unloading vehicles – Conveyor
Reexamination Certificate
2000-08-31
2003-10-14
Keenan, James W. (Department: 3652)
Material or article handling
Self-loading or unloading vehicles
Conveyor
C414S521000, C414S525100
Reexamination Certificate
active
06632066
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a carrying and loading/unloading apparatus capable of continuously transferring a load, which apparatus can be mainly utilized as an unloading apparatus and/or a loading apparatus such as on a truck bed, and can be otherwise utilized instead of a belt conveyor or a crane, for example.
2. Related Art
There will be firstly mentioned an unloading apparatus on a truck bed, as a representative example of a loading/unloading apparatus. Methods for unloading loads in a state of chips from a conventional truck bed includes: a so-called dumping method for tiltingly ascending and descending a bed
1
itself by a cylinder
2
as shown in
FIG. 32
; and a method for providing a feed plate
4
on a bed
1
such that the feed plate
4
is moved backwardly by a cylinder
3
to thereby push out chips on the bed
1
by the feed plate
4
as shown in FIG.
33
.
There is a further loading/unloading apparatus constituted of a platform
5
, a hydraulic mechanism
6
, a cylinder
7
, an over van
8
and a weighing equipment
9
, as shown in FIG.
34
. The platform
5
is adapted to tilt the chip vehicle by
55
degrees at the maximum by driving the hydraulic mechanism
6
and cylinder
7
. This platform
5
is framed of shaped steels and steel plates so as to have sufficient wideness and strength for unloading the chip vehicle, and is attached with, at one end of this platform
5
, a backstop
10
as a car stop adopting a strong shaped steel for supporting the chip vehicle upon tilting the platform
5
.
Among the conventional methods shown in
FIGS. 32 through 34
, it is required for the dumping method of the bed
1
shown in
FIG. 32
to exhibit a tilt angle greater than a predetermined value so as to smoothly and fully discharge the whole of chips on the bed
1
. However, the cylinder
2
has a limitation, and tilting the bed
1
shifts its center of gravity thereby leading to an unstable state.
In case of the feed plate method shown in
FIG. 33
, the feed plate
4
is required to be moved from one extremity to the other extremity of the bed
1
, resulting in a problem of the stroke of the cylinder
3
and in necessity of a specific multi-stage cylinder. Further, the longer length of the bed
1
may lead to failure of feeding. Namely, there may be such a situation that the rear extremity of the loads becomes somehow immovable or clogged, to thereby cause a pressure to overflow the loads just in front of the feed plate and/or to bulge out the side plates of the bed
1
. Moreover, although it is not impossible to successively move the cylinder
3
itself, the fixing procedure therefor will be then complicated and the maneuverability thereof is also troublesome.
Still more, since the feed plate
4
is to have a force for backwardly pushing the chips, the cylinder
3
is required to have a strong driving force.
Further, in the method shown in
FIG. 34
for tilting the whole of the chip vehicle by the platform
5
, the whole of the apparatus becomes large scaled whereas the unloading task is performed only at the place where the platform
5
is provided. In addition, entrance of a next chip vehicle while the over van
8
is left open during a series of tasks may result in that the next chip vehicle falls into a receiving bin. Similarly, insufficiently or inappropriately elevated positions of the backstop
10
also result in the fall of the vehicle, causing a serious accident.
SUMMARY OF THE INVENTION
The present invention has been carried out in view of the conventional problems as described above, and it is therefore an object of the present invention to provide a carrying and loading/unloading apparatus which: dissolves the disadvantage of the conventional examples; is constituted in a simple manner without requiring a complicated and large scaled apparatus; can be inexpensively fabricated; and allows an effective loading/unloading task with a fewer workers in a sufficiently safe manner.
Firstly, to carry out the aforementioned object, the present invention essentially provides a carrying and loading/unloading apparatus comprising: a bottom plate; a slide plate provided on the bottom plate so as to reciprocally move on the bottom plate; and a partition plate provided on the slide plate, the partition plate having securable side ends, so that only the slide plate below the partition plate is moved during securement of the side ends of the partition plate and so that the partition plate moves together with the slide plate during release of the side ends of the partition plate.
Secondly, the present invention essentially provides a carrying and loading/unloading apparatus constituting an unloading apparatus for a truck bed, comprising: a slide plate provided on a bottom plate of the truck bed so as to reciprocally move on the bottom plate from a cabin side of the truck toward the rear end of the truck; and a partition plate provided on the slide plate, the partition plate having side ends securable to right and left side plates of the truck, so that only the slide plate below the partition plate is moved during securement of the side ends of the partition plate and so that the partition plate moves together with the slide plate during release of the side ends of the partition plate.
Thirdly, the present invention essentially provides a carrying and loading/unloading apparatus comprising: a bottom plate; a slide plate provided on the bottom plate so as to reciprocally move on the bottom plate; and a partition as load movement restricting means for restricting the reciprocal movements of loads located on the slide plate and apt to be moved together with the slide plate, to one direction of the reciprocal movements such as a return path direction, wherein the partition forms a delivering portion for delivering loads onto the slide plate, so that those loads continuously delivered via the delivering portion and positioned on the slide plate are transferred only in an unrestricted advance path direction while the movement of the loads in the return path direction is restricted by the partition.
Fourthly, the present invention essentially provides a carrying and loading/unloading apparatus comprising: a slide plate adapted to be reciprocally moved; wherein the movement of the slide plate in one direction of the reciprocal movements such as in the return path direction is rendered to be rapid relative to in the advance path direction, such that the load positioned on the slide plate and apt to be moved together with the slide plate is kept at its then position when the slide plate is moved in the return path direction so rapidly, so that the load positioned on the slide plate is transferred only in the advance path direction by the difference between the speed of the slide plate in the return path direction and the speed of the slide plate in the advance path direction.
Fifthly, the present invention essentially provides a carrying and loading/unloading apparatus comprising: a slide plate adapted to be reciprocally moved; wherein successive strikes are given onto the slide plate from an advance path direction toward a return path direction, to thereby move loads on the slide plate in the advance path direction by means of an inertia effect.
Sixthly, the present invention essentially provides a carrying and loading/unloading apparatus comprising: a bottom plate; a slide plate provided on the bottom plate so as to reciprocally move on the bottom plate; and a moveable partition and a fixed partition, both provided above the slide plate, with a distance being between the moveable partition and the fixed partition; wherein the moveable partition moves synchronously with the slide plate such as in an advance path direction, whereas only the slide plate moves in one of the reciprocal movements of the slide plate such as in a return path direction; wherein the fixed partition is fixed fully irrespectively of the reciprocal movements of the slide plate, and wherein the moveable partition is sequentially advanced to a forward side p
Keenan James W.
Koda & Androlia
Koshiji Kinzoku Co., Ltd.
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