JPS6038569Y2 - Container bottom lid opening/closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bottom lid opening/closing device for a container, and more particularly to a bottom lid opening/closing device for a garbage collection container used as part of urban garbage pollution control measures.

Recently, public institutions have set up garbage collection containers on the streets, and have multiple households jointly put their garbage in. The containers are lifted up by collection trucks, and the bottom lids of the containers are opened to collect the collected garbage. The system is adopted.

This is because it is labor-saving, highly efficient, and sanitary compared to the conventional system that handles plastic buckets one by one.

However, since the garbage collection container used in this system has a large capacity, a large load is placed on the bottom lid, which often results in poor opening and closing operations of the bottom lid after the container is lifted.

An object of the present invention is to provide a bottom lid opening/closing device for a garbage collection container that exhibits reliable opening/closing operation.

Embodiments of the present invention will be described below with reference to the drawings.

1 to 7 show an embodiment of the present invention.

In the figure, a container body 1 is formed from shaped steel, iron plate, etc. into a substantially hollow rectangular parallelepiped with an opening at the bottom, and a bottom lid 2 that can close the opening is attached to the bottom opening, and a shaft 3 is attached to the rear side edge 1a of the opening.
It is pivoted and mounted so that it can rotate freely.

As shown in FIG.
C is formed to widen at the end, and this sloped surface portion makes it easier for the dirt stored inside to slide down.

The bottom lid 2 is formed like a saucer with a concave cross-section so that it can collect moisture from the garbage, and the front edge 2b of the bottom lid 2
A sloped surface portion 2c is formed on the inner surface of the bottom cover so as to widen toward the bottom, and this sloped surface portion makes it easier for dirt to slide down when the bottom cover is opened.

A bent stay 4 is installed between the left and right side edges of the main body 1 and the bottom cover 2, and a spring (not shown) is provided at one end of the stay so as to bias the stay rearward. This stay allows the bottom cover to open and close smoothly.

A hanging fitting 5 is protruded from the top plate portion 1d of the main body 1, and the top plate portion 1
A canopy 6 for opening and closing the garbage inlet is attached to both sides of d so as to be rotatably opened and closed by hinges 7.

A weight 8 is fixed to the free edge of the canopy 6, and the weight prevents the canopy from being opened or closed accidentally due to wind, animals, etc.

A handle 9 for opening and closing is provided protruding from the canopy 6, and handles 10 for closing the bottom cover are provided protruding from the front portions of both sides of the bottom cover 2, respectively.

A pair of bottom cover support plates 11 are arranged and fixed on the left and right sides of the front lower edge 1b of the main body 1, and each support plate has a bottom cover closed state maintenance mechanism as shown in detail in FIGS. 3 to 7. It is set in.

A substantially doglegged hook member 12 is attached to the bottom cover support plate 11 with its upper end rotatably attached to a shaft 13.
A hook portion 12a is formed at the lower end of the hook member 12, and this hook portion has a shape that allows it to be engaged with and suspended from an engaging protrusion 14a, which will be described later, which is protruded from the front edge 2b of the bottom cover 2. is formed.

A sloped surface portion 12b is formed on the lower surface of the hook member at a position directly below the hook portion 12a so as to approach the hook portion from the back side of the hook toward the socket side, and the sloped surface portion slides into contact with the protrusion 14a so as to The hook member 12 can be rotated in the direction of the ash receptacle of the hook portion.

The intermediate portion 12c of the hook member is formed relatively wide, and its rear surface slides against the front surface of the support plate 11, thereby ensuring smooth rotation of the hook member.

The center of gravity of the hook member is axis 1 in the free state of the hook member.
3 and the hook portion 12a are arranged in such a way that they can be almost aligned on a straight line.

A shaft 15 is protruded from the upper edge of the support plate 11 at a position that does not interfere with the rotation of the hook member 12, and a lever 16 is rotatably pivoted at the intermediate portion of the shaft to rotate the hook member 12. It is installed so as not to interfere with rotation.

The lower end 16a of the lever engages from the hook side with an engaging piece 17 protruding from the back side of the hook 12a of the hook member. One end of a rod 18 forming the structure is rotatably connected via a pin 19.

A stopper piece 20 is provided on the ventral side of the hook member 12 of the support plate 11.
is provided in a protruding manner to restrict the rotation of the hook member, and the restriction position is a position where the shaft 13 of the hook member and the hook portion 12a are substantially aligned on a straight line.

A spring 21 is stretched between the support plate 11 and the hook member 12 via a pair of locking pins 22, and this spring always biases the hook member in the direction of pressing the stopper piece 20.

Incidentally, this spring may be constituted by a spiral spring wound around the shaft 13.

A notch 23 is formed substantially vertically at a predetermined height on the lower edge of the support plate 11, and this notch guides the protrusion 14a and defines its top dead center.

A safety device 24 is provided on the supporting plate 11 on the side opposite to the stopper piece 20 of the hook member 12 (back side), and this safety device has a recess 25 recessed in the support plate 11 and access to and from the recess. It also includes a lock piece 26 that is freely housed.

An inclined surface portion 2 is provided on the side wall surface of the recess 25 opposite to the hook member.
5a is formed so as to approach the hook member side as it goes toward the bottom, and a pillar 27 is provided protruding from the center of the bottom of the recess.

An elongated hole 26a is bored in the approximate center of the lock piece 26, and the lock piece 26 slidably inserts the column 27 into the elongated hole. It is slidably stored in the

A spring 28 is externally mounted on the support column 27, and this spring always biases the lock piece 26 in the direction of protruding from the inside of the recess 25.

The lock piece 26 is prevented from falling off in the protruding direction by a flange 27a formed at the protruding end of the support column 27.

At a position corresponding to the support plate 11 on the front side of the front edge 2b of the bottom cover 2, as shown in detail in FIG. one of the rising pieces is connected to the projection 14.
It constitutes a.

Since the protrusion 14a is formed of a part of the U-shaped protrusion member, it is possible to prevent the human body, objects, etc. from being lacerated by the tip of the protrusion 14a.

The position of the protrusion 14a corresponds to the notch 23 of the support plate 11, and fits into the notch of the bottom cover 2 when it is closed.

As shown in FIGS. 1 and 2, an operating means 30 for rotating the lever is provided at the lower edge of the front surface of the main body 1.

This operating means is equipped with a pair of main pulleys 31, 31' and one intermediate pulley 32, with the bidirectional pulleys being disposed at the left and right ends of the lower edge of the front surface of the main body, and the intermediate pulley being disposed at the center via a mounting plate 33. has been done.

One end of the wire 34 wound around the left main pulley 31 is connected via the intermediate pulley 32, and one end of the wire 34 wound around the right main pulley 31' is directly connected between the upper ends of the left and right levers 16. The other ends of both wires are inserted through respective brackets 35 and 35' and are suspended from each other.

Therefore, no matter which wire is pulled, the rod will move in parallel in one direction, and both levers will move in a clockwise direction, that is, the lower end 16a of the lever will move the hook member 12 to the hook portion 12a.
It is designed to be rotated in the direction of the ash receiving side.

A spring 36, 36' is inserted between each bracket 35, 35' and the end of the wire 34, 34', and these springs keep each wire stretched without loosening at all times.

Note that it is preferable to attach a cover (not shown) to the lower front edge of the container body to cover each of the above-mentioned components.

Next, the action will be explained.

The garbage collection container is installed at a predetermined location with the bottom lid closed, and garbage is thrown in by opening and closing the canopy 6.

The closure of the bottom cover 2 is maintained in the state shown in FIGS. 3 to 5.

That is, the protrusion 14a of the bottom cover engages with the hook portion 12a of the hook member 12, and the bottom cover is suspended by the hook member, and the bottom cover is attached to the main body 1 via the protrusion, the hook member, the shaft 13, and the support plate 11. Retained.

The stopper piece 20 is moved by the spring 21.
The counterclockwise rotation is restricted by being pressed by the lock piece 26, and the clockwise rotation is restricted by being pressed by the lock piece 26 on the other side.

The lock piece is pushed up by the spring 28 into the recess 25.
It protrudes from inside, and one end of its elongated hole 26a abuts against the support column 27, thereby restricting lateral movement.

However, in this state, since the shaft 13 of the hook member and the hook portion 12a are aligned on a straight line, almost no rotational force is applied to the hook member 12.

When discharging garbage, after hoisting the container body 1 with a crane or the like using the hanging fitting 5, the lock piece 26 is first pushed into the recess 25.

The lock piece moves laterally by the inclined surface portion 25a while being pushed in, escapes to the rear of the hook member 12, and is prevented from protruding again.

Then, when one of the wires 34 is pulled, the rod 1
8 is moved in parallel, and both levers 16 are forced to rotate as shown in FIG.

Accordingly, the hook member 12 rotates clockwise, and the hook portion 12a releases the suspended state of the protrusion 14a.

The bottom cover 2, which has lost its holding power, rotates open due to its own weight and the load of the dirt, and the dirt falls from the inside of the main body 1 and is discharged.

At this time, since the inclined surface parts 1c and 2c are formed on the inner periphery of the main body 1 and the front edge of the bottom cover 2, the dirt is completely discharged.

The operating force of the lever 16 for forcibly rotating the hook member 12 can be adjusted by appropriately selecting the length of the lever and the like.

When closing the open bottom cover, hold the handle 10 and close the bottom cover 2.
When rotated upward, the protrusion 14 as shown in FIG.
a fits into the notch 23 of the support plate 11 and rises.

At this time, since the hook member 12 is pulled by the spring 21, the inclined surface portion 12b crosses the notch.

Therefore, the protrusion moving up the notch comes into contact with this slope, and the slope causes the hook member to rotate clockwise so as to escape.

When the projection relatively climbs over the inclined surface portion and reaches the hook portion 12a, the hook member is pulled by the spring and rotates counterclockwise, and the hook portion engages with the projection and suspends it. Become.

When the lock piece 26 is pushed out by the spring 28, it returns to the original state shown in FIGS. 3 to 5, and the bottom cover remains closed.

The safety device 24 in the embodiment described above restricts the clockwise rotation of the hook member 12 when the bottom lid is closed, and prevents the hook member from rotating if the wire is accidentally pulled due to a child's mischief. This prevents the danger of the bottom cover opening.

FIGS. 8 and 9 show another embodiment of the present invention, which differs from the previous embodiment in safety devices.

This safety device 24' includes a lock piece 37 and a cam piece 38, and the lock piece 37 is connected to the hook member 12 of the support plate 11.
The middle part is rotatably attached to the back side of the body with a pin 39.

A pair of springs 40 are stretched across one end of the lock piece, and both springs bias the lock piece to keep it horizontal at all times.

One end 37a of the locking piece can come into contact with the back side surface of the hook member 12, and the other end 37b can come into contact with the cam surface of the cam piece 38.

An arm portion 37c having an engagement piece 41 is protruded from the middle portion of the lock piece, and the engagement piece can be freely engaged with an arm portion 42 protruding from the middle portion of the lever 16.

A long hole 38a is bored in the cam piece 38, and the cam piece has a guide pin 43 protruding from one side of the lock piece 37 of the support plate 11.
It is attached to the support plate so as to be movable in a substantially vertical direction by slidably fitting the elongated hole into the support plate.

The cam piece is constantly pressed downward by a spring 44 whose upper end is pressed against a support plate.

A notch 45 is formed directly below the cam piece of the support plate 11,
This notch 45 has the second protrusion 1 of the protrusion member 14 of the bottom cover 2.
4b is fitted.

Next, the operation of this safety device will be explained.

When the bottom cover is maintained closed, as shown in FIG. 8, the lock piece 37 is in a horizontal state and comes into contact with the hook member 12, restricting the clockwise rotation of the hook member, and the cam piece 3B regulates the rotation of this lock piece.

Therefore, the hook member is prevented from accidentally rotating when lifting the container body 1.

When the lever 16 is rotated clockwise when the bottom cover is opened, the arm 42 pushes the engagement piece 41, causing the lock piece 37 to rotate.

At this time, the cam piece 38 is pushed down by the spring 44, causing the lock piece to rotate further.

Therefore, the hook member 12 is rotated by the lever 16, and as described above, the first protrusion 14a and the hook portion 12 are rotated.
The engagement with a is released and the bottom cover is opened.

When the bottom cover is closed, the first protrusion 14a on the protrusion member 14 of the bottom cover rotates the hook member 12, and the ninth
As shown in the figure, the second protrusion 14b pushes up the cam piece 38 and pushes the cam single-edge button piece 37 back to its original horizontal state.

As a result, the cam piece, lock piece, and hook member return to their original states shown in FIG.

Although the above embodiments have been described with a safety device, the safety device may be omitted, and if the dimensions, weight, etc. of the hook member are appropriately set, the stopper piece, spring, notch, etc. Can be omitted.

Further, the operating means for forcibly rotating the lever is not limited to the combination of the pulley, wire, and rod according to the above embodiment.

Further, the number of bottom lid closed state maintaining mechanisms is limited to two sets, but may be one set or two or more sets.

If the bottom cover is provided with legs, the bottom cover can be pushed up relatively to the main body by landing the bottom cover in the open state and then lowering the main body, reducing the effort required to close the bottom cover. Moreover, when installing the container, it is possible to prevent the load of garbage from being applied to the hook member, etc.

As explained above, according to the present invention, the bottom cover can be opened and closed reliably with a simple structure, and moreover, the bottom cover can be opened simply by operating the operating means, and the bottom cover can be opened and closed relatively easily. The bottom cover closes just by pushing it up on the main body, making it easy to open and close.

[Brief explanation of the drawing]

Figures 1 to 7 show one implementation sequence of the present invention.
The figure is an overall perspective view, Fig. 2 is an overall front view, Fig. 3 is an enlarged front view of main parts, and Figs. 4 and 5 are IV-IV of Fig. 3.
6 and 7 are enlarged front views of the main parts in each operating state, and FIGS. 8 and 9 are cross-sectional views taken along lines
The figures are enlarged front views of main parts of another embodiment of the present invention in various operating states. 1...Container body, 2...Bottom lid, 3...
...Shaft, 4...Stay 5...Hanging bracket, 6...Canopy, 9, 10...Handle, 11...・Bottom lid support plate, 12...Hook member, 12a...Hook part, 12b...
・・Slanted surface part, 13 ・・・ Axis, 14 ・・・
Projection members, 14a, 14b...Protrusion, 15...
...Shaft, 16...Lever, 17...
・Engagement piece, 18...Lid, 20...Stopper piece, 21...Spring, 23...
...Notch, 24.24'...Safety device, 30
・・・・・・Operation means.

Claims (1)

[Scope of utility model registration request] The bottom cover has handles on the front of both sides and engagement protrusions on the front edge, and its rear edge is rotatably attached to the lower edge of the container body to open and close the opening of the body. At the same time, a bottom lid support plate is provided on the lower edge of the container body opposite to the lower edge, and this support plate has a hook portion that engages with a protrusion of the bottom lid to suspend the bottom lid. A hook member provided at the lower end is rotatably attached to one end thereof, and an inclined surface portion is provided directly below the hook portion of the hook member so as to gradually approach the hook portion, and
A stopper piece is provided protruding from the vent side of the hook member of the support plate so as to restrict rotation of the hook member, and a spring is provided between the support plate and the hook member to push the hook member against the stopper piece. Further, a lever is attached to the support plate with its intermediate portion rotatably pivoted, and one end of the lever projects from the free end of the hook member. The lever is engaged with the provided engagement piece so as to contact and separate from the hook part side, and the other end of the lever is connected to an operating means for rotating the lever and the hook member against the spring. Container bottom lid opening/closing device.