JP3527159B2 - Storage box for waste materials - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage box for a waste material or the like whose bottom portion can be opened and closed, and more specifically, a storage box for which a bottom portion can be opened and closed by using a lifting operation so that the stored waste material or the like can be easily discharged. Regarding the box.

[0002]

2. Description of the Related Art A storage box is used to store waste materials generated in various works and scraps from factories and stock them in a proper place at a construction site or a factory and to transport them by truck. ing.

Conventionally, in the above-mentioned storage box, the bottom of the storage box main body that opens is freely opened and closed by a bottom lid, and the storage box main body is provided with a lever type locking mechanism for fixing the bottom lid in a closed state.
When throwing waste materials into the storage box body, keep the bottom lid closed with a lock mechanism.When carrying out the waste materials with a truck, hoist the entire storage box with a crane and operate the lever on the loading platform. The bottom lid is opened by releasing the lock mechanism, and the waste material is discharged onto the loading platform.

[0004]

By the way, in the above-mentioned conventional storage box, when the storage box is hoisted in order to discharge the waste materials, the entire weight of the stored waste materials is applied to the lock mechanism via the bottom cover. Therefore, when the lock mechanism is released to open and close the bottom lid, the release operation of the lock mechanism requires an extremely large force to overcome the load, and there is a problem that the release operation cannot be easily performed.

Further, the unlocking operation of the lock mechanism must be carried out by approaching the storage box that has been lifted by a crane or the like, and the waste materials and the like are discharged all at once at the same time when the bottom lid is opened, which is a dangerous operation.

Therefore, the object of the present invention is to automatically release the lock mechanism when the bottom cover is opened by simply selecting the hoisting angle of the storage box body, and it is not necessary to approach the lock mechanism. An object of the present invention is to provide a storage box for waste materials, etc., in which waste materials, etc. can be discharged safely.

[0007]

In order to solve the above-mentioned problems, the invention of claim 1 is such that one side is hinged to the main body of the storage box by a hinge mechanism at the bottom of the main body of which the bottom is open. Then, a bottom lid for opening and closing the bottom of the storage box main body is attached, and a lock metal fitting having a posture maintaining function that constantly hangs is hung so that it can swing at a position opposite to the hinge mechanism at the lower part of the storage box main body. It is pivoted downwardly and is provided with an engaging shaft of a lock fitting on the other side of the bottom cover so that the lock fitting holds the bottom cover in the closed position by engaging the engaging shaft.
In the storage box for waste materials etc.,
Hold the bottom lid in the closed position by engaging the
By tilting the storage box body at a predetermined angle with the side part of the
The configuration is such that it is formed so as to be disengaged from the engagement shaft .

According to a second aspect of the present invention, in the first aspect of the present invention, the lock metal fitting is fixed to the main body of the storage box.
It extends downward from the upper end that is pivotally attached to the hinge shaft, and the weight is attached to its lower end.
Has a portion, and the side of the bottom lid facing the engagement shaft is engaged with the engagement shaft.
Therefore, the recessed step part that holds the bottom lid in the closed position is
It is formed by sloping upward toward the outer edge when the tool is in the hanging position.
This lock fitting and the engagement shaft are
Allows the bottom lid to swing a predetermined angle in the opening / closing direction when
It adopts the structure that has the relationship .

According to a third aspect of the present invention, in the first or second aspect of the present invention, the bottom lid is flat against the bottom opening of the storage box body.
A bottom with a small planar size and closed bottom opening
Make sure there is a gap between the perimeter of the lid and the perimeter of the bottom opening.
It adopts the configuration that is.

[0010]

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 7, the storage box 1 is attached to the bottom of the storage box body 2 via a hinge mechanism 3 so as to open and close the storage box body 2 and the bottom of the storage box body 2. And a lock mechanism 5 for fixing the bottom cover 4 to the storage box body 2 and holding the closed state.

The storage box main body 2 is made of various shaped steels, and columns 7 are erected at four corners on the lower frame 6, and an upper frame 8 is provided above the columns 7.
Are assembled to assemble the frame 9, and a side plate 10 made of a steel plate is stretched on the peripheral surface of the frame 9 to form a rectangular tubular shape that opens at the top and bottom. Holes 11 for lifting are provided, and triangular corner plates 1 are provided at lower positions of four corners in the storage box body 2.
2 is attached in an inclined shape so that dust and the like do not collect at the corners.

As shown in FIG. 3, the bottom cover 4 has a bottom plate 14 stretched on the upper surface of a frame body 13 made of various types of steel, and grounded at the four lower corners of the frame body 13 and the front middle portion. Leg 1
5, the rear side of the frame 13 is pivotally fixed to the lower frame 6 of the storage box body 2 by a plurality of sets of hinge mechanisms 3 so as to open and close the bottom opening of the storage box body 2.

As shown in FIG. 12, the hinge mechanism 3 includes a pair of hinge plates 16 fixed to the lower surface of the lower frame 6 of the storage box main body 2 so as to project downward, and the frame body 1 of the bottom cover 4.
3, a hinge plate 17 fixed rearward so as to be housed between the hinge plates 16, and both hinge plates 1
6 and 17, the bottom cover 4 is formed around the pivot 18, and the bottom lid 4 is rotated about the pivot 18 so that the storage box body 2
Will open and close the bottom opening.

The bottom cover 4 is formed such that the planar size thereof determined by the outer diameter of the frame body 4 is slightly smaller than the bottom opening determined by the inner diameter of the lower frame 6 of the storage box body 2. As shown in FIG. 8, a gap a of, for example, about 10 mm is formed around the outer periphery of the bottom lid 4 that closes the bottom opening of the storage box body 2 and the inner periphery of the bottom opening. .

Due to the formation of the gap a, it is possible to prevent water such as rainwater and waste materials from being accumulated inside the storage box 1 and to prevent dust from being caught between the bottom lid 4 and the storage box main body 2. There is.

As shown in FIG. 11, the lock mechanism 5 supports the mounting shaft 20 with a pair of support brackets 19 fixed to the upper surfaces on both sides of the cutout portion provided in the lower frame 6 of the storage box body 2, and supports the mounting shaft 20. A lock metal fitting 21 having a posture maintaining function that hangs on the shaft 20 at all times is pivotally fixed in a hanging shape so as to be swingable in a mounting hole 22 at the upper end, and the lock metal fitting is provided on the front surface of the frame body 13 in the bottom lid 4. 21 is formed by fixing the engaging shaft 23 that engages and disengages, and the lock fitting 21 is
Engagement with the engagement shaft 23 will hold the bottom lid 4 in the closed position.

The lock fitting 21 is, as shown in FIG.
A thick metal plate is used, which extends downward from the upper end of the mounting shaft 20 which is provided with a mounting hole 22 for pivotally fixing the mounting shaft 20, and a circular weight portion 24 is provided at the lower end portion thereof. To the side face facing the bottom cover 4 by the engagement with the engagement shaft 23.
The recessed stepped portion 25 that holds the lock in the closed position
It is provided so as to be inclined upward toward the outer end when in the hanging posture.

The lock fitting 21 has a center of gravity at the bottom due to the weight of the weight portion 24 provided at the lower end, and the mounting shaft 2
In the natural state of being hung to 0, as shown in FIG. 10, even if the angle of the hoisted storage box body 2 changes, the mounting holes 22
The weight portion 24 has a posture holding function of always holding itself in a hanging state in which the weight portion 24 is positioned on the vertical line.

Further, the engaging shaft 23 is the frame 1 in the bottom cover 4.
3 is installed between a pair of L-shaped brackets 26 fixed to the front surface of the No. 3, and the relationship between the engagement shaft 23 and the lock fitting 21 is as follows.
With the bottom of the storage box body 2 closed by the bottom lid 4,
When the storage box body 2 is placed on the bottom cover 4, a space is created between the lower surface of the engagement shaft 23 and the recessed stepped portion 25 as shown in FIG. The engagement with the shaft 23 allows the bottom cover 4 to swing at a slight angle in the opening / closing direction.

When the bottom cover 4 is grounded to the ground and the storage box main body 2 is placed on the bottom cover 4, the lower frame 6 of the storage box main body 2 is placed.
The lower surface of the front portion of is supported by the L-shaped bracket 26.

Therefore, when the bottom lid 4 is grounded to the ground or the like and the storage box body 2 is placed on the bottom lid 4, the engagement shaft 23 is lifted from the recessed stepped portion 25 of the lock fitting, and the recessed stepped portion is formed. Two
5, the engagement between the engaging shaft 23 and the engagement shaft 23 does not occur, and the lock fitting 21 is in a hanging posture in a natural state.

Further, when the storage box main body 2 is hoisted horizontally in the above state, the lock fitting 21 also rises integrally, while the bottom lid 4 remains open and closed due to its own weight and the weight of waste materials. At this point, the recessed stepped portion 25 of the lock fitting 21 engages with the engaging shaft 23 while the lock fitting 21 is moving upward, and at this time, the bottom lid 4 is inserted through the lock fitting 21 and the engaging shaft 23.
The bottom lid 4 of the storage box main body 2 is kept closed with the bottom lid 4 slightly opened, so that even if the storage box main body 2 is hoisted horizontally, the waste materials inside will not spill out. Although not provided, the bottom cover 4 can be opened by manually disengaging the lock fitting 21 from the engagement shaft 23.

In the illustrated case, the lock mechanism 5 is mounted at two positions on both sides of the front of the storage box 1, but the number may be selected according to the size of the storage box 1.

Further, as shown in FIG. 11, the lock mechanism 5
On the side portion of the locking metal fitting 21, a locking metal fitting 28 is provided on the front surface of the lock metal fitting 21 so that the locking shaft 27 can be retracted by operating a lever.
When the lock mechanism 5 does not need to be engaged or disengaged, the locking shaft 27 is projected to the front surface of the lock fitting 21 to prevent the lock fitting 21 from swinging outward, so that the lock fitting 21 is engaged. The joint shaft 23 is prevented from being separated.

The storage box of the present invention is constructed as described above, and as shown in FIG. 4, the grounding leg 15 of the bottom cover 4 is grounded to the ground or the like, and the storage box main body 2 is placed on the bottom cover 4. In this state, the bottom opening of the storage box main body 2 is closed by the bottom lid 4, and waste materials, scraps, etc. are stored in the storage box main body 2.

At this time, as shown in FIG. 8, in the hanging lock metal fitting 21, the recessed stepped portion 25 faces below the engaging shaft 23 with a gap.

When carrying the storage box 1, as shown in FIG. 5, the storage box 1 may be horizontally hoisted and transferred by a crane through the wires connected to the upper ends of the pillars 7 at the four corners. When the storage box body 2 rises, the bottom lid 4
The hinge mechanism 3 side rises as a unit, but the lock mechanism 5 side tries to remain as it is, so that the hinge mechanism 3 is rotated in the bottom opening direction with respect to the storage box body 2, and as shown in FIG. After the lock metal fitting 21 has been moved upward by the distance, the recessed stepped portion 25 engages with the engaging shaft 23 of the bottom lid 4 during the upward movement, and the bottom lid 4 is slightly opened by the distance. The storage box main body 2 is locked in the posture, whereby the bottom opening of the storage box main body 2 is maintained in a closed state, and the stored waste materials etc. do not spill out.

Next, in the case of discharging the waste materials and the like stored inside onto the loading platform of the truck, as shown in FIG. 6, the upper ends of the pillars 7 located on the hinge mechanism 3 side of the storage box 1 placed on the loading platform. Connect the wire to, and hoist the storage box body 2 with a crane.

Due to this one-sided suspension, the storage box 1 as a whole is inclined for the first time with the lower end of the grounding leg 15 located on the lock mechanism 5 side of the bottom lid 4 as a fulcrum.

At this time, since the storage box main body 2 is placed on the bottom cover 4, the lock fitting 21 is in a posture in which the recessed stepped portion 25 does not engage with the engaging shaft 23, as shown in FIG. To
The positional relationship between the mounting shaft 20 and the engagement shaft 23 of the lock fittings 21 that are located above and below is horizontally displaced around the lower end serving as the fulcrum of the grounding leg 15, while the lock fittings 2 are
Even when the storage box main body 2 is tilted, the posture holding mechanism 1 always keeps a state of hanging from the mounting shaft 20, so that the lock fitting 21 and the engagement shaft 23 are separated from each other. When the box body 2 is tilted at an angle of 30 °, the recessed stepped portion 25 of the lock fitting 21 is completely escaped from the range directly below the engagement shaft 23.

The inclination angle of the storage box body 2 exceeds 30 °,
When the center of gravity of the whole storage box 2 is further lifted up, the storage box main body 2 is vertically lifted while being inclined, and the hinge mechanism 3 is lifted up integrally with the storage box main body 2 so that the bottom The lid 4 changes its angle around the grounding leg 15 as a fulcrum, and the bottom of the ascending storage box main body 2 is opened. Therefore, waste materials inside slide down on the bottom cover 4 and the bottom of the storage box main body 2 is released. It is automatically discharged from the open portion, and FIG. 7 shows a state in which the bottom cover 4 is fully opened and droops.

After discharging the waste materials and the like inside as described above, if the storage box main body 2 is placed on the bottom lid 4 and returned to the horizontal state and placed thereon, the state shown in FIG. 4 is restored. ,
Thereafter, when the storage box main body 2 is hoisted horizontally and transferred, the lock mechanism 5 is engaged and the bottom lid 4 closes the bottom of the storage box main body 2.

In addition to the above-described tilting of the storage box 1 by suspending it from one side, the storage box body 2 can be horizontally lifted to open the bottom portion, in addition to opening the bottom portion of the storage box body 2.

In this case, when the grounded storage box 1 is hoisted horizontally, the lock fitting 21 is artificially rotated outward so that the lock fitting 2 is raised when the storage box main body 2 is lifted.
If the engagement with the engagement shaft 23 of No. 1 does not occur,
It is possible to open the bottom of the storage box body 2 as it rises.

[0037]

As described above, according to the present invention, the bottom lid hinge mechanism for opening and closing the bottom is attached to the lower portion of the storage box body having an open bottom, and the bottom portion of the storage box body is located on the opposite side of the hinge mechanism. In addition, the lock metal fitting that has a function of maintaining the posture that always hangs is pivotally stopped in a hanging shape so that it can swing.
The locking metal fitting holds the bottom lid in the closed position by engaging the bottom cover with the engagement shaft, and the lock box is engaged with the engagement shaft by tilting the storage box body at a predetermined angle with the other side of the bottom lid as a fulcrum. Since the engagement is disengaged, the lock mechanism can be released automatically when the bottom lid is opened by simply selecting the hoisting angle of the storage box body, and there is no need to approach the lock mechanism. Can be discharged safely and efficiently.

[Brief description of drawings]

FIG. 1 is a perspective view showing the external shape of a storage box.

[Figure 2] Plan view of the storage box body

FIG. 3 is a plan view of the bottom lid.

FIG. 4 is a side view showing a grounded state of the storage box.

FIG. 5 is a side view showing a state in which the storage box is horizontally suspended.

FIG. 6 is a side view showing a state in which the storage box is suspended in an inclined manner.

FIG. 7 is a side view showing a state in which the bottom lid of the storage box is fully opened and lifted up.

FIG. 8 is a vertical sectional side view showing a lock mechanism and a hinge mechanism in a grounded state of the storage box.

FIG. 9 is a vertical sectional side view showing a lock mechanism in a state where the storage box is horizontally suspended.

FIG. 10 is a vertical cross-sectional side view showing the lock mechanism in a state where the storage box is lifted up in an inclined shape.

FIG. 11 is an exploded perspective view showing the structure of a lock mechanism.

FIG. 12 is an exploded perspective view showing the structure of a hinge mechanism.

[Explanation of symbols]

1 storage box 2 Storage box body 3 Hinge mechanism 4 Bottom lid 5 Lock mechanism 6 lower frame 7 pillars 8 upper frame 9 frames 10 side plate 11 holes 12 corner boards 13 frame 14 Bottom plate 15 Grounding leg 16 hinge plate 17 hinge plate 18 Axis 19 Support bracket 20 axes 21 Lock bracket 22 mounting holes 23 Engagement shaft 24 Weight 25 Recessed step 26 L type bracket 27 Locking shaft a gap

Claims (3)

(57) [Claims] 1. A bottom cover for opening and closing the bottom of the storage box body by pivotally fixing one side to the storage box body by a hinge mechanism is attached to the lower part of the storage box body with an open bottom. At the position opposite to the hinge mechanism at the lower part, a lock fitting that has a posture-holding function that constantly hangs is pivotally stopped in a hanging manner so that it can swing, and the lock fitting is engaged with the other side of the bottom lid. A shaft is provided, and the lock fitting holds the bottom lid in the closed position by engaging with the engaging shaft.
In the box, the lock fitting is
Hold the bottom lid in the closed position and use the other side of the bottom lid as the fulcrum.
When the storage box body is tilted at a predetermined angle,
A storage box for waste materials, etc., characterized by being formed so as to be out of alignment. 2. The lock fitting extends downward from an upper end pivotally fixed to a mounting shaft fixed to the storage box main body, has a weight portion at a lower end thereof, and engages with a side portion of the bottom lid facing the engaging shaft. The concave stepped portion that holds the bottom lid in the closed position by engaging the mating shaft,
It is formed by sloping upward toward the outer end in the hanging posture of the lock fitting, and the lock fitting and the engagement shaft are attached to the bottom cover at a predetermined angle in the opening / closing direction in the engagement attitude with the engagement shaft of the lock fitting. The relationship that allows the swinging of
Storage box of wastes, etc. as described in 1. 3. The planar size of the bottom lid is smaller than the bottom opening of the storage box body, and a gap is provided between the periphery of the bottom lid that closes the bottom opening and the periphery of the bottom opening. The storage box for waste materials, etc. according to claim 1 or 2 , characterized in that it is generated.