JPH01213163A - Sealed vessel having cover switchgear - Google Patents

Abstract

PURPOSE: To keep the environmental hygiene and to easily take in and out the trash bag by keeping a container with closure in a sealed condition by a main spring, semi-opening the closure by pedalling, and fully opening the closure by pulling a stopper pin off in the pedalling condition. CONSTITUTION: When a pedal 40 of a foot lever 41 is worked, a spring lever 44 is separated from a hook lever 42d first, and then a closure 3 is semi-opened by a closure push-up rod 42. The closure 3 is closed when the pedal 40 is released, and the sealing condition of the closure 3 is held by a main spring 45 for preventing the invasion of insects and the exhalation of odor. When a stopper pin 44c of the spring lever 44 is pulled out and the pedal 40 is fully worked, the closure 3 is fully opened, and further the closure 3 can be held in the full- opened position by the action of torque to the spring lever 44 of the main spring 45 even though the foot is left from the pedal 40, which makes the replacement of a plastic bag easy. After the replacement of the bag, the closure 3 is closed by a hand, and the stopper pin 44c is inserted whereby the closure can be returned to the closed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sealed container with a lid opening/closing device, and more particularly to a sealed container with a lid opening/closing device whose lid is opened and closed by operating a foot lever or a foot pedal.

[Conventional technology]

Containers with conventional lid opening/closing devices, especially lidded garbage cans used to maintain environmental hygiene and cleanliness in stations, hospitals, buildings, underground malls, etc., can be opened via a push rod by pressing down on a foot lever or foot pedal. Open the lid and
So-called foot-lever trash cans, in which the lid closes under its own weight when the foot is removed from the foot lever or pedal, are widely used.[Problem to be Solved by the Invention] Such trash cans are operated simply by foot operation, in other words, by touching the lid with the hand. Although it has the advantage of being able to open and close the lid without having to touch the lid, it is not effective in preventing cockroaches and ants from entering and exiting and the release of odors, and when changing the garbage bag (plastic bag), the foot lever must be kept depressed. Otherwise, there is a risk that the lid may suddenly fall and cause your hand to be caught or get in the way of replacement work, which is unsafe and inconvenient. Sealed containers such as drum cans with a sealing function are used for chemicals, foods, medicines, etc., but opening and closing the lids of such containers is cumbersome, and they are frequently opened and closed. Not suitable for trash cans that can be easily opened and closed.

[Means to solve the problem]

Therefore, the present invention provides a lid opening/closing device comprising a container body 1, a container mouth fitting frame 2, a lid 3 whose one end is pivotally connected to the container body 1 so as to be openable and closable, and a lid opening/closing device 4 attached to the outer wall of the container body 1. In the sealed container, the lid opener M4 has a U-shaped foot lever 41 whose middle part is pivoted on both side surfaces of the container body 1 and has a pedal at one end, and a foot lever whose lower end is slidable via a pin. A lid push-up rod 42 is formed in an arc-shaped sliding groove 42a connected to the free end of the lid 41, and has a flat surface 42d.The upper end is pivotally attached to approximately the middle of both sides of the lid 3, and the lower end is connected to the foot lever 41. A spring lever operating rod 43 is pivotally connected between the free end of the container body I and the pivot point, and has an upwardly extending upper end; a swingable spring lever 44 whose end is pivotally connected to the upper end of the operating rod 43;
A stop pin 44 whose upper end is slidably fitted into a sliding groove 44b formed in the spring lever 44 via a roller 45a, and which is attached to the spring lever 44 so as to be freely insertable and extractable.
The main spring 4 limits the moving distance of the roller 45a by C, and its lower end is hooked to a hook 19 on the side surface of the container body 1.
5, and an auxiliary spring 46 whose upper end is hooked to approximately the middle of the push-up rod 42 and whose lower end is hooked to the tip of the foot lever 41.

[For production]

According to the present invention, the lid always keeps the opening of the container sealed by the biasing force of the main spring 45, and when the pedal of the foot lever 4 is fully depressed with the foot toward the ground,
The lid 3 is opened half-open by a lid push-up rod 42 of the lid opening/closing device 4 and fixed in that position. Then, when the foot is released from the pedal, the lid 3 is closed by its own weight and the main spring 45, which gradually recovers, is applied with the torque acting on the spring lever 44, closing the lid into a sealed state. Also, if you remove the stop pin 44C while pressing the pedal, or if you first remove the stop pin and then step down on the pedal, the lid 3 will open fully and the lid opening/closing device 4 will maintain this state even if you pull your foot off the pedal. However, even if the lid 3 receives an external force, it will bounce back to its original position due to the spring, so the lid will not close unexpectedly, and it will not interfere with taking in and taking out the garbage bag, and there is no risk of getting your hands caught. Furthermore, after replacing the garbage bag, when the lid is pushed down by hand until it is almost closed, the lid descends under its own weight, and the torque of the main spring 45 is also applied to close the container opening, and the main spring 45 acts to close the opening/closing device 4. to hold the lid tightly closed.

〔Example〕

Figures 1 to 3 show an embodiment in which the sealed container with a lid opening/closing device of the present invention is applied to a garbage box. It consists of a fitted frame 2, a lid 3 whose one end is pivotally connected to the rear end of the opening of the container body 1 so as to be freely openable and closable, and a link-shaped lid opening/closing device 4 disposed on the outer side wall of the container body 1.

The container body I is a bottomed rectangular cylinder with an upward opening, or a box-shaped or tub-shaped container with at least both side walls formed flat, and the opening has a mouth edge 1 having an annular step 1) on the inner wall.
2, an annular groove 13 is provided in the stepped portion 1), and a seal ring 14 is fitted into the groove, and a pair of stoppers 15 and a pair of elongated holes are provided at the rear of the main body 1. A pivot hole 16 is provided, and a pivot 17 is formed to protrude upward, and a foot lever pivot 18 and a main spring hook 19, which will be described later, protrude in close proximity to each other on both outer walls of the main body 1. It is set up. Furthermore, a stopper pin 10 is provided at the rear upper part of the outer walls on both sides to hold the lid push-up rod 42 in position so that a hook member 42d (described later) is vertical.

The fitting frame 2 is an annular cylinder having a flange 21 at the upper end,
It is configured so that it fits into the inner periphery of the mouth rim 12 of the container body 1, and its lower end abuts against the step 1) via the seal ring 14, and an annular a22 is formed on the upper surface of the flange 21. ,
A seal ring 23 is fitted into the groove.

M3 is a plate-shaped or shallow box-shaped (
In this embodiment, the lid body is plate-shaped), and a pivot piece 31 protruding rearward at its rear end fits between both side walls of the pivot portion 17, and is provided at both ends of the pivot piece 31. The shaft portion 32 is slidably fitted into the pivot hole 16, and the container body is moved so that the lid can be opened and closed with respect to the opening using the shaft portion 32 as a fulcrum in conjunction with the lid opening/closing device 4. It is attached to 1.

The lid opening/closing device 4 has an intermediate portion rotatably attached to the pivot portions 18 on both sides of the main body 1, and has a pedal attached to a front end rod portion 41a which is bendable via a hinge portion 41c extending forward of the container main body 1. 40 and a substantially U-shaped foot lever 41, and a groove member 4 whose lower end has an arc-shaped sliding groove 42a.
2b, and this sliding groove 42a is formed in the foot lever 41.
The upper end is slidably inserted into the pin 41b provided at the free end of the foot lever 41, and the upper end is connected to the foot lever 41.
2C, a pair of left and right lid push-up rods 42 are pivotally attached to the sides of the lid 3 at approximately the center thereof, and a hook member 42d extending downward perpendicularly to the lid 3 is provided at the upper end thereof.
a spring lever operating rod 43 whose lower end is rotatably connected between the free end of the foot lever 41 and the pivot portion 18 via a pin 43a, and whose upper end extends upward toward the lower end of the hook member 42d; Both ends are pivotally attached to the upper side of the container body 1 horizontally via pins 44a, and one end is pivotably pivoted to the upper end of the spring lever operating rod 43 via pins 43b. It is worn,
Also, a spring lever 44 with a roller guide groove (sliding groove) 44b whose end part always presses the hook member 42d when the lid is closed, and a roller guide if of the spring lever 44 whose upper end is via a roller 45a; The main spring 45 is slidably hooked to the main spring 44b, the movement distance within the groove is limited by the stop pin 44C, and the lower end is hooked to the spring hook portion 19 provided on the side surface of the container body 1. ,
It is constituted by a sub spring 46 whose upper end is hooked approximately midway through the lid push-up bar 42 and whose lower end is hooked to the end of the foot lever 41 near the end on the pin 41b side.

Note that when this container is used as a trash can, a trash bag 5 such as a plastic bag is used inside the container. After the bag opening of the garbage bag 5 is folded outward to the mouth edge of the container body I, the fitting frame 2 is fitted to fix the bag. Further, the bag opening may be folded back inward after the fitting frame 2 is fitted.

As shown in FIGS. 1 and 4M, the container configured as described above is covered with a lid 3 which seals the opening of the container via a spring lever 44 which presses down a hook member 42d by the tensile force of a main spring 45. are doing.

At this time, the spring lever 44 maintains a horizontal position, the roller 45a is locked at one end of the roller guide groove 44b, the main spring 45 maintains a substantially vertical position, and the tip pin 41b of the foot lever 41 is placed in the groove of the groove member 42b. At the lower end, the pedal 40 is in the upper position of the re-operation condition. The elastic force of the main spring 45 is stronger than that of the sub spring 46.

Next, the use and operating state of an embodiment in which the container of the present invention is used as a trash box will be explained.

As shown in the operation explanatory diagram of the lid opening/closing device in FIG. 4, when the user depresses the pedal 40 with his foot, the foot lever 41 rotates in the direction shown by the arrow, that is, clockwise, about the pivot 18 as a fulcrum. . At this time, the pin 41b at the tip of the foot lever 41 slides upward along the sliding portion 42a of the groove member 42b and performs a lost motion, so the lid pushing rod 42 remains stationary, but the spring lever The operating rod 43 rises as the foot lever 41 rotates, and the spring lever 44 connected thereto is moved up by the pin 44a.
Rotate clockwise using the fulcrum as a fulcrum to tilt it. When the spring lever 44 is tilted, one end thereof is attached to the hook member 42.
At the same time, the roller 45a at the upper end of the main spring 45 slides down to the lower end along the roller guide a44b, and when the pin 41b is locked to the upper end wall of the slide m42a, the roller 45a is at the pivot point. Nearby, further pedal 40
When the spring lever 44 is pressed down, it slides down to a position where it locks onto a stop pin 44C attached to the spring lever 44, resulting in the state shown by the chain line in FIG. As the roller 45a of the main spring 45 moves from the tip of the spring lever 44 to the position of the stop pin 44C installed at the neutral position, the spring 45
Since the torque radius relative to the fulcrum pin 4'4a gradually becomes smaller, the torque applied to the spring lever 44 also gradually decreases, and the torque becomes almost zero when the roller 45a is locked to the stop pin 44C. The pin 41b is in the sliding groove 42
After locking on the upper end wall of a, that is, the foot lever 41
After performing the lost motion, the pedal 40 continues to be depressed and descends, so the foot lever 41 moves to the pivot point 1.
8 is used as a fulcrum to push up the tip pin 41bT:M push-up bar 42, and this push-up bar 42 pushes up the lid 3 via the pin 42C.

This lid 3 has a pivot hole 16 in a rear end pivot portion 17 of the container body 1 long enough to achieve the effect of tightly closing the container mouth horizontally when the opening of the container body 1 is closed. Since it is formed in the shape of a hole, the lid 3 first becomes horizontal and is lifted by the push-up rod 42, and the shaft portion 32 also rises accordingly, and after this locks with the upper end of the pivot hole 16, At this position, the lid 3 can be opened by rotating counterclockwise around the shaft 32. This state is the fifth
Illustrated in the diagram.

As mentioned above, when the foot lever 41 is operated, the spring lever 44 is tilted and the roller 45a is pressed against the stop pin 44.
As the main spring 45 moves toward C, the torque applied to the lever 44 of the main spring 45 gradually becomes smaller and finally reaches zero, and the lever 44 separates from the hook member 42d before the lid push-up bar 42 lifts the lid 3, and the main spring 45 moves away from the hook member 42d. Since the elastic force of the spring 45 is not applied to the lid 3, the pedal 40 has no resistance force of the spring 45, and the pedal 40 can be pressed lightly.

After the lid 3 is opened to a predetermined degree, that is, to a half-open state, as shown by the chain line in FIG. 5, garbage and paper waste can be thrown into the container. After charging, when you release your foot from the pedal 40, the lid 3 rotates downward under its own weight to close the container opening, and at the same time, the entire lid opening/closing device 4 returns to its original state, and the main spring 4
Spring lever 44 that returns the roller 45a of No. 5 to a horizontal position
As the lever 44 rotates, it moves to the left end of the lever 44, urges the lever 44 downward again, presses the hook member 42d, and seals the lid 3.

Then, when taking out the plastic bag 5 in which garbage has accumulated inside the container and replacing it with a clean bag, the tip of the retaining pin 44C that locks the mass roller 45a is completely inserted into the slotted hole of the lever 44 from a44b. When the pedal 40 is fully depressed after being turned up to the maximum position, the M3
opens as described above, but since the middle of the roller guide groove 44b of the spring lever 44 is not blocked by the stopper pin 44c, the roller 45a moves below the pivot point (fulcrum pin) 44a at the neutral position from the left end of the groove 44b. Pass through the groove 44b
It rotates and slides down to the right end of the screen. At this time, a torque is generated that causes the main spring 45 to rotate clockwise relative to the spring lever 44.
The left end of M3 pulls up the operating rod 43, and only with the clockwise rotational torque of the main spring 45, M3 is fully opened to its maximum extent until its rear lower end is locked with the stopper 15 of the pivot support 17. In this case, since the clockwise torque exerted by the elastic force of the main spring 45 on the spring lever 44 is set to be larger than the dead load of the sub spring 46 and the opening/closing device 4 as a whole, the lid 3 is held in a fully open state. never falls. Therefore, even if the foot releases the pedal 40, the lid 3
remains fully open, which is convenient for replacing the plastic bag 5.

At this time, even if the lid 3 is lightly bumped or tapped, the lid 3 at point A shown in FIG. , the main spring 45 is on the neutral line and the torque is zero, and the spring lever 44 makes a 90° angle with this point. The main spring 45 which has applied the torque returns the lid 3 to the fully open state via the lid opening/closing device 4, so there is no risk of the lid 3 accidentally falling (closing) and getting your hand caught.

After replacing the bag, when the lid 3 is strongly pushed downward by hand, the spring lever 44 rotates counterclockwise due to the interlocking of the push-up rod 42, operating rod 43, and foot lever 41, and the roller 45a moves along the groove 44b. After sliding from the right end to the left end and passing below the pivot point 4ta, which is the neutral point,
Torque in the opposite direction is generated in the same manner as when the lid is closed, and the tip of the spring lever 44 presses the lid 3 downward via the hook member 42d, returning the lid to the closed state shown in FIG. 1. After the lid 3 is closed, if the stop pin 44C is screwed in to limit the moving distance of the roller 45a to a position where the lid 3 is half-opened, the lid 3 can be used as described above.

Since each member of the lid opening/closing device 4 is designed so as not to interfere with each other during operation, the opening/closing operation of the lid can be performed smoothly.

In the above embodiment, the reason why the pedal-side end of the foot lever 41 is made into a two-stage type that can be bent in one direction was adopted in consideration of the appropriate operating angle of the foot lever 41 and the operating height of the pedal 40. Pedal 4 by design
It is also possible to use a single foot lever 41 by changing the 0 position, the length and shape of the push-up rod 42 and the operating rod 43. Alternatively, an outer cylinder or a cover (not shown) may be provided so that the lid opening/closing device 4 is not exposed, so that only the pedal end of the foot lever 41 protrudes operably from the front surface of the container body 1. . In addition, for example, two container bodies are arranged in parallel, a lid opening/closing device is provided on the opposing inner surfaces of each container body, a lid that covers both container openings at the same time, and a common pedal protruding from the front surface of both containers, It is also possible to open and close both container openings at the same time by operating a pedal, and to configure the container into a sorting trash can in which combustible and non-combustible garbage are stored in separate containers.

The necessity of incorporating lost motion will be explained here.

When attempting to open the closed lid by depressing the pedal 40, if there is no lost motion, the lid push-up bar 42 will immediately try to push up the lid 3, but the spring lever driven by the same foot lever 41 (with a driving radius) Since it is smaller than the former), the spring lever 44
The left end of the lid 3 is still holding down the hook member 42d.
I can't open it.

Therefore, a sliding member 442a is provided to cause the groove member 42b at the lower end of the lid push-up rod 42 to perform a lost motion.

This lost motion, that is, the play of the pin 41b is caused by the hook pressing end of the spring lever 44 being connected to the hook member 42d.
Since the spring lever 44 is provided with a margin that does not hinder the opening of the lid 3, the lid 3 can be opened smoothly.

This play can always precede the left end of the spring lever 44 until it reaches the intersection point P between the rotational trajectory of this end and the rotational trajectory of the lower end of the hook member 42d, as shown in FIG. There is plenty of room.

In addition, in order to prevent the hook pressing end of the spring lever 44 from returning earlier than the hook member 42d during operation, that is, from falling down and not being able to hold the hook member 42d, the relationship between the spring lever 44 and the main spring 45 is adjusted. The system is installed so that it operates as shown below. That is, when the M3 is closed by hand from the fully open state as shown in FIG. 6, when the lid 3 rotates clockwise and reaches point A, the spring lever 44, which is still inclined
and the main spring 45 are designed so that they are perpendicular to each other at 90° on the neutral line (as shown by the chain line). Therefore, before M3 descends to the position of point A, if the lid 3 does not come down completely due to some reason or something getting caught in the container opening, the roller 45a is moved to the neutral position forming a 90° angle. Since the main spring 45 generates clockwise torque at the left end of the spring lever 44 on the right side of the line, it goes without saying that the spring lever 44 will not fall in advance. In addition, in a general use state in which the pin 44c is inserted to limit the position of the roller 45a, the roller 45a is
Since a is locked to the pin 44c slightly to the right of the neutral line, the torque is small, but it is still a clockwise torque with respect to the spring lever 44, and this torque is applied to the lid 3, the push-up rod 42, and the operating rod 43. However, if something gets caught in the lid 3, the total dead weight will be absorbed by the container, leaving only the dead weight of the spring lever operating rod 43, and the spring lever 44 and Since the weight of the foot lever 4■ on both sides of the fulcrum is canceled out and considered to be zero, this l-lux is sufficiently applied to the spring lever 44.
However, just in case, an auxiliary spring 46 is provided to keep the pin 41b from falling.
The lost motion generating slide 1) maintains contact with the ``1'' end of 142a, and increases the clockwise torque to completely prevent free falling. Furthermore, when the lid 3 is lowered from point A, the lower end of the hook member 42d is connected to the spring lever 4.
Since the spring lever 44 reaches the point P, which is the intersection of the rotation locus of both the lower end of the hook member 42d and the left end of the spring lever 44, before the spring lever 44, the spring lever 44 does not fall into the air. When the lid 3 is fully opened, the spring action of the secondary spring 46 is at its maximum, but it is smaller than the spring force of the main spring 45 at this time, so even if there is some residual elasticity when closing the lid, the lid can be closed and sealed. has almost no effect. When the lid 3 is just closed, the spring lever 44 is still in an inclined state, and the main spring 45 generates counterclockwise torque to pull down the left end of the spring lever 44, and the pin 41b moves freely in the groove 42a, causing the spring The lever 44 can press the hook member 42d to firmly seal M3. As described above, the action of lost motion not only allows the lid to open and close smoothly, but also prevents the spring lever from falling.

〔Effect of the invention〕

As described above, according to the present invention, when the pedal of the foot lever is depressed, the spring lever first moves away from the hook member, and then the lid push-up bar opens the lid, and when the foot releases the pedal, the lid closes. The elastic force of the main spring keeps the lid tightly sealed, preventing insects from entering and odors from escaping. When you remove the locking pin on the spring lever and press the pedal fully down, the lid opens fully. At this time, even if your foot is removed from the pedal, even if the lid is subjected to external force, the lid will be held in the fully open position or returned to that position by the l-lux action of the main spring against the spring lever, making it convenient for replacing plastic bags. Therefore, there is no risk of the lid falling off unexpectedly. Furthermore, after replacing the bag, if you close the lid manually and insert the retaining pin into its original position, the bag returns to the closed state and can be reused.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a side view of the invention showing a lid opening/closing device, Fig. 3 is a plan view of the invention, and Figs. 4 to 6 are lid opening/closing devices. Fig. 4 shows the operating state of lost motion, Fig. 5 shows the operating state from after the lost motion until the lid becomes half-open, and Fig. 6 shows the operating state from when the lid is half-open. This shows the operating state until it is fully opened. 1...Container body, 2...Fitting frame, 3.
...Lid, 4...Lid opening/closing device, 18...
...Central part, 19... Latch part, 40...
...Pedal, 41...Foot lever, 41b.
...Pin, 42...Lid push-up bar, 42
a...Sliding groove, 42b...Groove member, 4
2d... Funkreher, 43... Spring lever operating rod, 44... Spring lever, 44b... Sliding groove, 44c... Stop Pin, 45...Main spring, 46...
... Sub-spring, 45a...Roller. Engraving of the drawings 1, Indication of the case 1988 Patent Application No. 28352 2, Name of the invention Sealed container with lid opening/closing device 3, Relationship with the person making the amendment Patent applicant address Heping West Road, Taipei, Taiwan - No. 80, Building 2-5 Name: Drugs: Nationality: Taiwan: 4; Agent address: 143 2-1-8 Sanno, Ota-ku, Tokyo; May 31, 1988 (all delivery dates); 6. Subject to amendment.

Claims (3)

[Claims] (1) A container with a lid opening/closing device, which consists of a container body 1, a container opening fitting frame 2, a lid 3 that covers the container opening, and a lid opening/closing device 4 with a pedal 40, and the lid 3 is opened and closed by pressing down on the pedal. In this case, the lid opening/closing device 4 has an intermediate portion pivotally connected to pivot parts 18 on both sides of the container body 1, a pedal 40 is attached to one end extending forward of the container body 1, and a pin 41b is attached to one end extending rearward. An octopus-shaped foot lever 41 is interlockably connected to the rear end of the foot lever 41 via a groove member 42b having a sliding groove 42a whose lower end slidably fits into the pin 41b, and whose upper end is connected to the lid 3. A lid push-up rod 42 is provided with a hook lever 42d that is rotatably pivoted at approximately the center of the side surface of the screen and whose lower end extends downward from the pivoted end.
and the lower end is the pivot portion 18 of the foot lever 41 and the pin 41b.
A spring lever operating rod 43 is rotatably connected between the side ends, and the upper end extends upward and is pivotally connected to the spring lever 44 described below, and the center portion is rotatably connected to the side surface of the container body 1. A spring lever 44 with a sliding groove 44b whose front end is a free end and whose rear end is pivotally connected to the upper end of a spring lever operating rod 43, and whose upper end is slidable via a roller 45a attached thereto. A main spring 45 is fitted into the sliding groove 44b and has a lower end hooked to a hook 19 provided on the side surface of the container body 1, and a lid push-up rod 4 has an upper end.
A sealed container with a lid opening/closing device, characterized in that it is provided with an auxiliary spring 46 that is hooked to the middle part of the foot lever 2 and whose lower end is hooked to the tip of the foot lever 41. (2) The lower end of the lid push-up rod 42 is the foot lever 41
The lid opening/closing device according to claim 1, characterized in that an arc-shaped groove member 42b is provided with a sliding groove 42a that corresponds to the lost motion of the arcuate trajectory that the pin 41b performs during operation. Sealed container with equipment. (3) When the spring lever 44 passes through the upper pivot portion of the spring lever 44 and one end enters the sliding groove 44b, the movement of the roller 45a of the main spring 45 is limited and the lid 3 is opened half-open. A removable stop pin 44c is provided so that the lid 3 is automatically fully opened from the half-open position when the lid 3 is fixed in the position shown in FIG. A sealed container with a lid opening/closing device according to claim 1.