JP2000128205A - Device for opening and closing lid of container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To vertically open and close a lid to the opening of a container body. SOLUTION: An arm 18 is provided on a lid 14 of a gastight container 11. A slide block 21 is passed through a hole 19 made in the arm 18 and is rotatably supported by means of a shaft 22. A link 28 is rotatably connected with the edge of the arm 18 on the opposite side of the lid 14 by means of a shaft 30 passing through its long hole 29. A stopper 23 is provided on the slide block 21 in such a way that the lid 14 does not rotate to the more lower side than the horizontal condition. When the slide block 21 is moved in the vertical direction by means of a hydraulic cylinder 25 like this, the lid 14 and the arm 18 are moved in parallel in the vertical direction by the length of the long hole 29 of the link 28. As the result, it is possible to prevent an O-ring 17 from being twisted by the underside of the lid 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening and closing a lid of a closed container or the like.

[0002]

2. Description of the Related Art Conventionally, when a lid of an airtight container closed by an O-ring or the like is opened and closed, as shown in FIG. And the lid 5 is connected by the hinge 4 so as to be openable and closable. Then, for example, the lid 5 is opened and closed by swinging the lid 5 around the pin 6 of the hinge 4 by an actuator (not shown) such as a hydraulic cylinder.
An annular groove is provided in the upper surface 7 of the container body 2 on the opening 3 side, and an annular O-ring 8 is mounted in the groove.

[0003]

However, in the above-mentioned conventional lid opening and closing device for a closed container using a hinge,
There are the following problems. That is, in the closed container 1 in which the annular O-ring 8 is mounted on the upper surface 7 around the opening 3 as shown in FIG. 9, the O projecting from the upper surface 7 of the container body 2 by the elastic force as shown in FIG. Ring 8
As shown in FIG.
A closed space is formed by closely adhering to the back surface.

When the lid 5 of the closed container 1 is opened and closed by a hinge 4, a pin 6 of the hinge 4 on the lid 5 is required.
The curvature of the arc-shaped trajectory accompanying the opening / closing of a location close to the location is greater than the curvature of the trajectory at a location far away. Therefore, hinge 4
The O-ring 8 at a position farther from the main body is pressed by the lid 5 in a substantially vertical direction. On the other hand, as shown in FIG. 10, the O-ring 8 near the hinge 4 is pressed while being twisted in a vertical direction from a substantially oblique direction by the lid 5.

[0005] Therefore, when the lid 5 is repeatedly opened and closed, torsional deformation is repeatedly applied only to a specific portion of the O-ring 8, resulting in deformation or destruction, and the life of the O-ring 8 is shortened. If the O-ring 8 is partially broken, dust (particles) may be generated from the O-ring 8.
There is also a problem that occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a container lid opening / closing device in which the lid moves and rotates in parallel with the mouth of the container body.

[0007]

In order to achieve the above object, a container lid opening / closing device according to the first aspect of the present invention, when opened, turns the lid in a parallel state after separating the lid from the opening surface of the container body. On the other hand, at the time of closing, the lid is turned until it is parallel to the opening surface, and then is brought into contact with the opening surface in a parallel state.

According to the above construction, the lid is attached and detached in parallel with the opening surface of the container body. Therefore, when the O-ring is mounted in an annular groove provided around the opening on the opening surface of the container body, the O-ring is pressed uniformly on the lower surface of the lid. for that reason,
Part of the O-ring is not torsionally pressed by the lower surface of the lid.

According to a second aspect of the present invention, there is provided a container lid opening / closing apparatus, comprising: a container main body; a lid having an arm projecting outward from a side surface while closing an opening of the container main body; A freely mounted block, an actuator that moves the block in one direction, and a maximum rotation angle of the lid with respect to the closed side with respect to the block,
A lid stopper for limiting the angle between the opening surface of the container body and the one direction, and a maximum for setting a maximum movement distance in the one direction of a specific position on the side opposite to the container body with respect to the rotation center of the arm. A moving distance setting means is provided.

According to the above configuration, when the distance between the lower surface of the lid and the opening surface of the container body is within the range of the maximum movement distance, the specific position of the arm can be moved in the one direction. Since the rotation angle of the lid with respect to the block in the closing direction is regulated by the lid stopper, the lid is attached and detached in parallel with the opening surface of the container body. Therefore, when the O-ring is mounted on the opening surface of the container body, the O-ring is pressed evenly by the lower surface of the lid. Therefore, a part of the O-ring is not torsionally pressed on the lower surface of the lid.

When the distance between the lower surface of the lid and the opening surface of the container body reaches the maximum movement distance, the movement of the specific position in the arm in the one direction is restricted. Rotate around a specific position. Thus, the lid is opened and closed by rotation when it is separated from the container body.

According to a third aspect of the present invention, in the container lid opening and closing apparatus according to the second aspect of the present invention, the maximum moving distance setting means has an elongated hole on one end side and penetrates the elongated hole. The arm is rotatably connected to a specific position of the arm by a shaft, and the other end is constituted by a link rotatably attached to a fixed member.

According to the above configuration, the lid is parallel to the one direction until the shaft attached to the arm abuts on one end of the long hole in the link or separates from the one end of the long hole. Moving. Thus, the lid is attached and detached in parallel with the opening surface of the container body.

According to a fourth aspect of the present invention, in the container lid opening and closing apparatus according to the second aspect of the present invention, the maximum movement distance setting means has one end rotatably connected to a specific position of the arm. A first link, a second link having one end rotatably connected to the other end of the first link, and a second link rotatably attached to the other end of the first link; It is characterized by comprising angle setting means for setting the maximum angle formed by the link to a predetermined angle.

According to the above configuration, the first link and the second link
In the range where the angle formed by the link is smaller than the predetermined angle,
The lid translates in the one direction. Thus, the lid is attached and detached in parallel with the opening surface of the container body.

According to a fifth aspect of the present invention, in the container lid opening / closing apparatus according to the second aspect of the present invention, the lid stopper is provided so as to protrude from the side surface of the block, and the lower surface of the lid is provided on the container body. And a projection member that comes into contact with the lower surface of the arm when it is parallel to the opening surface of the arm.

In the above configuration, when the lid rotates to the closed side around the specific position, if the lower surface of the lid is parallel to the opening surface of the container main body, the lower surface of the arm contacts the side surface of the block. The rotation is stopped by contacting the provided protruding member.

According to a sixth aspect of the present invention, in the container lid opening and closing device according to the second aspect of the present invention, the actuator is provided on the container body side with respect to the block. .

According to the above configuration, the block is moved in the one direction from the container body by the actuator.

According to a seventh aspect of the present invention, in the container lid opening and closing device according to the second aspect of the present invention, the actuator is provided on the opposite side of the block from the container body. Features.

According to the above construction, the block is moved in the one direction from the side opposite to the container body by the actuator.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. <First Embodiment> FIG. 1 is a side view of a container lid opening / closing device according to the present embodiment. This lid opening / closing device is configured to perform vertical movement and rotational movement of the lid by one actuator (air cylinder, hydraulic cylinder, jack, linear motion mechanism, or the like).

In FIG. 1, reference numeral 11 denotes a closed container, which comprises a container body 12 having an opening 13 and a lid 14 for closing the opening 13 of the container body 12. An annular groove 16 is provided on the upper surface 15 of the container body 12 on the side of the opening 13, and an annular O-ring 17 is mounted in the groove 16. On the other hand, an arm 18 protruding outward from the side surface is attached to the lid 14, and a substantially vertical hole 19 is formed in the arm 18 on the side of the central lid 14. Further, a groove 20 is cut in a vertical direction on an edge of the arm 18 opposite to the lid 14.

A slide block 21 is inserted through the hole 19 of the arm 18 so that the arm 18 and the slide block 2
1 is rotatably supported by two shafts 22 (only one is shown in FIG. 1) attached to both sides of the hole 19. At that time, slide block 21
A plate-like stopper 2 protruding from the side wall on the lid 14 side
3 is provided, and the lower surface of the arm 18 comes into contact with the upper surface of the stopper 23 when the lid 14 is in a horizontal state. Therefore, when the lid 14 rotates with respect to the slide block 21, the lid 14 cannot be rotated below the horizontal state. Although a detailed description is omitted, the stopper 23 is provided with a function of adjusting the position in the vertical direction with respect to the slide block 21 so that the lid 14 can be leveled out.

Further, the slide block 21 is provided with two guide holes in the vertical direction, and a rod-shaped guide 24 arranged in the vertical direction is inserted into each of the guide holes. Slide block 21 having the above configuration
Is mounted on a head 27 of a piston rod 26 of a hydraulic cylinder 25 installed below, and is moved vertically while being guided by a guide 24. Although not described in detail, the guide 24 is, for example, the container body 1.
It is attached to 2 etc.

A vertical groove 20 cut at the edge of the arm 18 opposite to the lid 14 has an elongated hole 29 at one end.
Is provided, and is slidably connected to the arm 18 by a shaft 30 passing through the elongated hole 29. The other end of the link 28 is rotatably attached to a link bearing 32 by a shaft 31.

The container lid opening / closing device having the above configuration operates as follows. That is, first, the hydraulic cylinder 25 is driven as shown in FIG.
Is stretched. Then, the slide block 21 becomes 2
The guides 24 are guided by the guides 24, 24 and rise vertically, and accordingly, the arm 18 and the lid 14 connected to the slide block 21 by the shaft 22 also rise. In this case, since the lid 14 is in a horizontal state, the lower surface of the arm 18 is in contact with the upper surface of the stopper 23 and cannot be rotated downward. The shaft 30 provided at the rear end of the arm 18 is
8 is movable in the long hole 29. Therefore,
As shown in FIG. 2, as the slide block 21 is raised, the lid 14 moves vertically in parallel.

When the lid 14 continues to move vertically in a parallel manner, the axis 30 of the arm 18 is eventually moved as shown in FIG.
Contacts the upper end of the long hole 29. After that, hydraulic cylinder 2
5, the slide block 21 continues to be raised. Then, the rear end of the arm 18 is raised by the shaft 30 and the elongated hole 29.
Therefore, the lid 14 and the arm 18 rotate around the shaft 30 to the open side as shown by the arrow (a). In this case, the arm 18 also rotates about the shaft 22 with respect to the slide block 21. Therefore,
The shaft 30 moves to the piston rod 26 side of the hydraulic cylinder 25. Therefore, the link 28 copes with the movement of the shaft 30 by rotating about the shaft 31.

Thus, when the slide block 21 is raised by a predetermined distance, the hydraulic cylinder 25 is stopped,
The lid 14 opens in a predetermined size.

Here, by changing the stroke of the hydraulic cylinder 25, the distance between the shafts 22 and 30, and the shape of the arm 18, the opening angle of the lid 14 is set to an arbitrary angle within a range of 0 to 90 degrees. it can.

When the lid 14 is closed, the above operation may be reversed. That is, in the state shown in FIG. 3, the hydraulic cylinder 25 is driven and the piston rod 26
Is contracted, the slide block 21 descends and the lid 1
The arm 4 and the arm 18 rotate about the shaft 30 in the direction opposite to the arrow (a). Then, when the lid 14 is horizontal, the lower surface of the arm 18 comes into contact with the upper surface of the stopper 23, and the lid 14 cannot rotate any more.

Therefore, thereafter, the lid 14 moves vertically downward in parallel with the lowering of the slide block 21. As a result, the lower surface of the lid 14 is
At the same time in the circumferential direction.
The ring 17 is not pressed while being twisted.

Although not described in detail, a lock means for fixing the relative rotational movement of the arm 18 and the slider block 21 is provided. When the lower surface of the arm 18 contacts the upper surface of the stopper 23, When the locking means operates and the piston rod 26 of the hydraulic cylinder 25 further contracts, the O-ring 17 is evenly crushed, and the container body 12 and the lid 14 are sealed.
When the locking means as described above is not used, the hydraulic cylinder 25 and the slider block 21 are cut off when the lower surface of the lid 14 rides on the O-ring 17, and another actuator provided on the container body 21 is provided. The container main body 12 and the lid 14 may be sealed by operating or by manually tightening the fixing bolt.

As described above, in the present embodiment,
Lid 14 of sealed container 11 sealed by O-ring 17
An arm 18 is provided at the center of the arm 18, and a slide block 21 is inserted through a hole 19 formed at the center of the arm 18 so as to be rotatably supported by two shafts 22. The slide block 21 is provided with a stopper 23 for preventing the lid 14 from rotating below the horizontal state. Further, the slide block 21 is moved vertically by the hydraulic cylinder 25.

A link 2 having an elongated hole 29 at one end is provided at an edge of the arm 18 opposite to the lid 14.
8 are relatively slidably connected by the length of the elongated hole 29. Further, the other end of the link 28 is a link bearing 3
2 is attached rotatably.

Therefore, when the lid 14 is detached or brought into contact with the container main body 12, the long hole 2 of the link 28 is required.
The cover 14 and the arm 18 have a length of 9
Can be translated in the vertical direction with respect to the opening 13. As a result, when the lid 14 is attached to and detached from the container
The O-ring 17 at a position close to 2 is not pressed while being twisted by a lower surface of the lid 14 from a substantially oblique direction to a vertical direction. That is, according to the present embodiment, the O-ring 1
7 has a longer life, and the generation of dust (particles) can be prevented.

When the cover 14 is opened, the cover 1
4 and the arm 18, the axis 30 of the arm 18 is
After contacting the upper end of the long hole 29, it rotates about the shaft 30. Therefore, the lid 14 can be widely opened with respect to the container body 12.

In the container lid opening and closing device, the position of the hydraulic cylinder 25 with respect to the slide block 21 is on the lower side. However, the present invention is not limited to this. As shown in FIG. 4, an actuator 36 may be disposed above the slide block 35 and the slide block 35 may be operated from above. . In that case, the guide 37 for guiding the slide block 35 in the vertical direction is attached to the container body 38 below the slide block 35.

<Second Embodiment> By the way, the opening / closing operation of the lid by the rotation after vertically rising with respect to the container main body or the vertical downward after rotation is performed by the action of the actuator in the lid. A rotary shaft for opening and closing is provided outside the point, and the rotary shaft is vertically movable by a predetermined distance by the actuator. In the first embodiment, the vertical movement of the shaft 30 serving as the rotation shaft is determined by the long hole 2 of the link 28.
9 makes it possible. In the second embodiment, the vertical movement of the rotation axis is enabled by changing the angle of a connected link.

FIG. 5 is a side view of the container lid opening / closing device according to the present embodiment. Container body 41, lid 42, O-ring 43, arm 44, slide block 45, stopper 46,
The guide 47 and the hydraulic cylinder 48 are the container main body 12, the lid 14, the O-ring 17, the arm 1 in the first embodiment.
8, the slide block 21, the stopper 23, the guide 24, and the hydraulic cylinder 25 have the same configuration and function similarly.

A first link 52 is provided in a vertical groove 51 cut at the edge of the arm 44 opposite to the lid 42.
Is inserted and rotatably connected by a shaft 53. Further, a groove 54 is cut on the other end side of the first link 52, and one end of a second link 55 is inserted into the groove 54 and is rotatably connected by a shaft 56, and the other end is a shaft. It is rotatably attached to the link bearing 58 by 57.

Here, the groove 5 in the first link 52
A link stopper 59 is provided below the other end side of the other end of the second link 55 as the angle setting means with which the end face 55a of the second link 55 comes into contact when the angle between the first link 52 and the second link 55 reaches a predetermined angle θ. ing. Therefore, the second link 55 cannot be opened more than the predetermined angle θ with respect to the first link 52. Note that the link stopper is not limited to the above configuration, and may be provided on the second link 55 side.

The container lid opening / closing device having the above-mentioned structure operates as follows. Here, in the initial state where the lid 42 is closed as shown in FIG. 5, the angle between the first link 52 and the second link 55 is smaller than the predetermined angle θ.
_{At 0} . First, as shown in FIG. 6, when the hydraulic cylinder 48 is driven and the slide block 45 is guided vertically by the guide 47, the lower surface of the arm 44 contacts the upper surface of the stopper 46 and cannot be rotated downward. Reference numeral 42 translates vertically. In this case, since the angles of the first and second links 52 and 55 in the initial state are θ ₀ (<the predetermined angle θ), the lid 42 is opened by opening the angles of the first and second links 52 and 55. Shaft 53 which is a rotating shaft for opening and closing
Can be moved in the vertical direction.

When the lid 42 continues to move vertically in parallel in this way, the first and second links 5 are eventually formed as shown in FIG.
The angle of 2, 55 becomes the predetermined angle θ, and the end face 55 a of the second link 55 contacts the link stopper 59. And
Further, a slide block 45 is provided by a hydraulic cylinder 48.
7 is fixed, the angles of the first and second links 52, 55 are fixed to θ, and the rise of the shaft 53 is restricted.
As shown in FIG. 7, the lid 42 and the arm 44 rotate about the shaft 53 to the open side as shown by the arrow (b).

Thus, when the slide block 45 is raised by a predetermined distance, the hydraulic cylinder 48 is stopped,
The lid 42 is opened in a predetermined size.

Here, by changing the stroke of the hydraulic cylinder 48, the distance between the shaft 60 and the shaft 53, and the shape of the arm 44, the opening angle of the lid 42 is set to an arbitrary angle in the range of 0 to 90 degrees. it can. Also, two axes 5
By changing the distance between 3, 56 and the distance between the two axes 56, 57, the translation distance of the lid 42 can be set to an arbitrary distance.

To close the lid 42, the above operation may be reversed. That is, in the state shown in FIG.
5, the lid 42 and the arm 44 rotate around the shaft 53 in the direction opposite to the arrow (b). When the lid 42 is horizontal, the lower surface of the arm 44 comes into contact with the upper surface of the stopper 46, and the lid 42 cannot rotate any more.

Accordingly, thereafter, as the slide block 45 is lowered, the lid 42 moves vertically downward while the angles of the first and second links 52 and 55 are narrowed. As a result, the lower surface of the lid 42 simultaneously presses the O-ring 43 in the circumferential direction.

As described above, in the present embodiment, the first link 52 is rotatably connected to the edge of the arm 44 on the side opposite to the lid 42 by the shaft 53, and the first link 5
One end of a second link 55 is rotatably connected to the second groove 54 by a shaft 56. A link stopper 59 is provided on the other end side of the groove 54 in the first link 52 so that the first link 52 and the second link 55 are separated by a predetermined angle θ.
Try not to open larger.

Therefore, when the lid 42 is detached or brought into contact with the container body 41, the first and second links 5
When the angle of 2,55 is within the range of the predetermined angle θ, the lid 42 and the arm 44 can move in parallel with the opening of the container body 41 in the vertical direction. As a result, when the lid 42 is attached to and detached from the container main body 41, a portion of the O-ring 43 close to the axis 60 is not pressed while being twisted by a lower surface of the lid 42 from a substantially oblique direction to a vertical direction. That is, according to the present embodiment, the life of the O-ring 43 is extended, and
(Particles) can be prevented from being generated.

In the container lid opening / closing device, the position of the hydraulic cylinder 48 with respect to the slide block 45 is on the lower side. However, the present invention is not limited to this. As shown in FIG. 8, an actuator 62 may be disposed above the slide block 61 and the slide block 61 may be operated from above. . In that case, the guide 63 for guiding the slide block 61 in the vertical direction is attached to the container body 64 below the slide block 61.

In each of the above embodiments, the hole 19 is formed in the center of the arms 18 and 44 while the grooves 20 and 5 are formed in the edges.
1 and slide blocks 21 and 45
Are rotatably supported while the links 2
8, 52 are mounted rotatably (movable). However, you may comprise as follows. That is, arm 1
8, 14 are composed of two rod-shaped first and second arms. Then, the central portion and the edge portions of both arms are connected at an interval with an axis. Then, between the two arms, the slide blocks 21 and 45 are rotatably mounted on the shaft at the center, while the links 28 and 52 are rotated on the shaft at the edge.
It is (movable) mounted.

[0053]

As is apparent from the above description, the container lid opening / closing device according to the first aspect of the present invention is configured such that when the container is opened, the lid is separated from the opening surface of the container body in a parallel state, and then the container is turned while the container is closed. Since the lid is pivoted until it is parallel to the opening surface and then abuts on the opening surface in a parallel state, the lid can be attached and detached in parallel with the opening surface of the container body.

That is, according to the present invention, the O-ring mounted around the opening on the opening surface of the container body can be pressed evenly by the lower surface of the lid. Therefore, it is possible to prevent a part of the O-ring from being pressed while being repeatedly twisted on the lower surface of the lid, thereby extending the life of the O-ring. Also, the O-ring is partially broken,
(Particles) can be prevented from being generated.

In the container lid opening / closing device according to the second aspect of the present invention, an arm is provided on the lid, and when the block rotatably attached to the arm is moved in one direction by an actuator, the container is opened and closed. The maximum rotation angle of the lid to the closed side is limited by the lid stopper to an angle formed by the opening surface of the container main body and the one direction, and the specific position of the specific position located on the side opposite to the container main body with respect to the rotation center of the arm. Since the maximum movement distance in the direction is set by the maximum movement distance setting means, the distance between the lower surface of the lid and the opening surface of the container body is within the range of the maximum movement distance. Can be attached and detached in parallel to

That is, according to the present invention, the O-ring mounted around the opening in the opening surface of the container main body can be uniformly pressed by the lower surface of the lid. Therefore, it is possible to prevent a part of the O-ring from being pressed while being repeatedly twisted on the lower surface of the lid, thereby extending the life of the O-ring. Also, the O-ring is partially broken,
(Particles) can be prevented from being generated.

Further, when the distance between the lower surface of the lid and the opening surface of the container body reaches the maximum movement distance, the lid can be rotated about the specific position. Therefore, after the lid is separated from the container body, it can be opened greatly.

In the container lid opening / closing device according to the third aspect of the present invention, the maximum movement distance setting means is provided at a specific position of the arm by a shaft having an elongated hole at one end side and passing through the elongated hole. Since the link is configured to be rotatably connected, the maximum movement distance of a specific position in the arm can be set with a simple configuration using only one link.

According to a fourth aspect of the present invention, in the container lid opening and closing device, the maximum movement distance setting means includes a first link having one end rotatably connected to a specific position of the arm, and one end having the first link. The second link, which is rotatably connected to the other end of the first link, and angle setting means for setting a maximum angle formed by the first link and the second link. There is no need to process long holes or the like.

In the container lid opening / closing device according to the fifth aspect of the present invention, the lid stopper is provided so as to project from the side surface of the block, and the lower surface of the lid is parallel to the opening surface of the container body. In this case, the arm is constituted by a protruding member that comes into contact with the lower surface of the arm, so that the maximum rotation angle of the lid toward the closing side can be limited with a simple structure.

Further, in the container lid opening / closing device according to the present invention, since the actuator is installed on the container body side with respect to the block, the actuator and the container body are integrated to reduce the size. be able to.

In the container lid opening / closing apparatus according to the seventh aspect of the present invention, the actuator is provided on the side opposite to the container body with respect to the block, so that only the actuator is provided on the container body side. In case space cannot be secured.

[Brief description of the drawings]

FIG. 1 is a side view of a container lid opening / closing device according to the present invention.

FIG. 2 is a view showing a state in which the lid is vertically translated in the lid opening and closing device shown in FIG. 1;

FIG. 3 is a view showing a state where the lid is rotated following FIG. 2;

FIG. 4 is a side view of a closed container lid opening / closing device different from FIG.

5 is a side view of a lid opening and closing device for a closed container different from FIGS. 1 and 4. FIG.

FIG. 6 is a view showing a state in which the lid is vertically translated in the lid opening and closing device shown in FIG. 5;

FIG. 7 is a view showing a state where the lid is rotated following FIG. 6;

8 is a side view of a lid opening / closing device for a closed container different from FIGS. 1, 4 and 5. FIG.

FIG. 9 is a view showing a lid opening / closing mechanism of a closed container using a hinge.

10 is a diagram showing a state in which the O-ring is pressed while being twisted by the lid in the lid opening and closing mechanism shown in FIG. 9;

[Explanation of symbols]

11 ... closed container, 12, 38, 41, 64 ... container body,
14, 42 ... lid, 17, 43 ... O-ring,
18, 44 ... arm, 21, 35, 45, 61 ... slide block, 22, 30, 31, 53, 56, 57, 60 ...
Shaft, 23, 46 ... stopper, 24, 37,
47, 63 ... guide, 25, 36, 48, 62 ... hydraulic cylinder, 28, 52, 55 ... link, 29 ... long hole, 32, 58 ... link bearing, 59 ... link stopper.

Claims (7)

[Claims] When the lid is opened, the lid is turned in a parallel state after being separated from the opening surface of the container body, and when the lid is closed, the lid is closed. The container opening and closing device is characterized in that the container is turned until it is parallel to the opening surface (15), and then is brought into contact with the opening surface (15) in a parallel state. 2. A container body (12, 41), and an opening (13) of the container body (12, 41) is closed.
A cover (14, 42) having an arm (18, 44) projecting outward from a side surface; a block (21, 45) rotatably attached to the arm (18, 44); , 45) in one direction, and the maximum rotation angle of the lid (14, 42) to the closed side with respect to the block (21, 45) is determined by the container body (12, 41).
A lid stopper (23, 46) for limiting the angle between the opening surface (15) of the arm and the one direction; Maximum moving distance setting means for setting the maximum moving distance in the direction (28, 52, 55, 59)
A container lid opening / closing device, comprising: 3. The container lid opening / closing device according to claim 2, wherein the maximum movement distance setting means has an elongated hole (29) on one end side, and a shaft (30) passing through the elongated hole (29). ) Is pivotally connected to a specific position of the arm (18),
A container lid opening / closing device characterized in that the other end is constituted by a link (28) rotatably attached to a fixing member (32). 4. The container lid opening and closing device according to claim 2, wherein the maximum movement distance setting means includes a first link (52) having one end rotatably connected to a specific position of the arm (44). A second link (55) having one end rotatably connected to the other end of the first link (52), and the other end rotatably attached to the fixed member (58); A container lid opening / closing device comprising an angle setting means (59) for setting a maximum angle formed by a first link (52) and a second link (55) to a predetermined angle (θ). 5. The container lid opening / closing device according to claim 2, wherein the lid stopper is provided so as to protrude from a side surface of the block (21, 45), and a lower surface of the lid (14, 42) is provided. When it becomes parallel to the opening surface (15) of the container body (12, 41), it is constituted by a projecting member (23, 46) which comes into contact with the lower surface of the arm (18, 44). Container lid opening and closing device. 6. The container lid opening / closing device according to claim 2, wherein the actuator (25, 48) includes the block (2).
A container lid opening / closing device, which is provided on the container body (12, 41) side with respect to (1, 45). 7. The container lid opening / closing device according to claim 2, wherein the actuator (36, 62) includes the block (3).
5. A container lid opening / closing device, which is provided on the opposite side of the container body (38, 64) with respect to (5, 61).