JP2001048210A - Lid structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid structure easy to assemble and not injuring an assembling person. SOLUTION: A lid structure is equipped with an opening member 12 having an opening 12a, a lid main body 14 provided with respect to the opening member 12 so as to be freely revolvable between a closed position closing the opening 12a and an open position opening the opening 12a, a lid holding means 20 for holding the lid main body 14 to the closed position in an openable manner and the elastomer 16 formed into a plate shape from an elastic material and constituted so that both end parts thereof are fixed to the lid main body 14 in a superposed state and the intermediate part between both and parts thereof is pressed and bent by a connection member accompanied by the movement of the lid main body 14 from the open position to the closed position to accumulate elastic force and revolving the lid main body 14 from the closed position to the open position by the accumulated elastic force when the holding of the lid main body 14 to the closed position by the lid holding means 20 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to: a lid body rotatably provided to an opening member having an opening between a closed position in which the opening is closed and an open position in which the opening is opened; And a lid holding means for releasably holding the lid main body in the closed position.

[0002]

2. Description of the Related Art Such a lid structure is used in various fields. In recent years, various lid structures capable of operating the opening and closing operations of the lid body with one hand have been developed. A lid structure in which the opening / closing operation of the lid body can be operated with one hand is disclosed in
-58725, JP-A-8-217113,
It is widely known from Japanese Patent Application Laid-Open No. 9-39996.

In the lid structure disclosed in Japanese Patent Application Laid-Open No. 9-58725, the lid body is connected to the opening member by a rubber band. Then, when the lid body is moved from the open position to the closed position, the band-shaped rubber is bent and the elastic force is accumulated. When the holding of the lid main body at the closed position by the lid holding means is released, the lid main body is automatically rotated from the closed position to the open position by the elastic force accumulated in the band-shaped rubber.

In the lid structure disclosed in Japanese Patent Application Laid-Open No. 8-217113, a lid body is connected to an opening member via a pivot shaft so as to be rotatable between an open position and a closed position. One end of a band-shaped rubber is fixed to one of the opening member and the lid body, and the other end of the rubber is engaged with an engagement hole formed in the other of the opening member and the lid body. ing. Then, when the lid body is moved from the open position to the closed position, the band-shaped rubber is bent and the elastic force is accumulated. When the holding of the lid main body at the closed position by the lid holding means is released, the lid main body is automatically rotated from the closed position to the open position by the elastic force accumulated in the band-shaped rubber.

In the lid structure disclosed in Japanese Patent Application Laid-Open No. 9-39996, the lid body is connected to the opening member via a pivot shaft so as to be rotatable between an open position and a closed position. One end of a band-shaped rubber is fixed to the lid body, and the other end of the rubber is engaged with an engagement hole formed in the opening member. Then, when the lid body is moved from the open position to the closed position, the band-shaped rubber is bent and the elastic force is accumulated. When the holding of the lid main body at the closed position by the lid holding means is released, the lid main body is automatically rotated from the closed position to the open position by the elastic force accumulated in the band-shaped rubber.

[0006]

In each of the conventional lid structures disclosed in the three publications described above, the work of fixing both ends of the band-shaped rubber to the opening member and the lid body at the time of assembly is performed. Necessary or one end of the band-shaped rubber is fixed to one of the opening member and the lid body, and the other end of the band-shaped rubber is engaged with the engaging hole formed in the other of the opening member and the lid body. It is necessary to work together.

The fixing operation and the engaging operation are complicated, and increase the assembly cost of the above-mentioned conventional lid structure. In addition, the engagement may be released during use, and there is a risk that the finger of the assembler may be pinched during the engagement operation.

[0008] The present invention has been made under the above circumstances, and an object of the present invention is to provide a lid structure which can be easily assembled and eliminates the possibility that an assembler is damaged.

[0009]

In order to achieve the above-mentioned object of the present invention, a lid structure according to the present invention comprises: an opening member having an opening; and a closing position in which the opening is closed with respect to the opening member. And a lid body rotatably provided between an open position where the opening is opened; a lid holding means for releasably holding the lid body in a closed position; and a plate-like material made of an elastic material. The both ends are fixed to the lid body in a state where both ends are overlapped, and the elastic portion is pressed by the opening member to bend by the movement of the lid body from the open position to the closed position, so that the elastic force is increased. And an elastic body for rotating the lid main body from the closed position to the open position by the accumulated elastic force when the lid main body is held at the closed position by the lid holding member is opened. Features.

Since the elastic body is formed in a plate shape from an elastic material and both ends are fixed to the lid body in a state where both ends are overlapped, the assembling work is easy. The outer surface of the intermediate portion of the elastic body fixed to the lid body in a state where both ends are overlapped has a curved shape. When the lid body is moved from the open position to the closed position, the outer surface of the intermediate portion of the elastic body having such a curved shape is pressed by the opening member and flexed, thereby accumulating elastic force. An intermediate portion having a curved outer surface of the elastic body has no possibility of damaging the assembler of this lid structure. Further, since the intermediate portion also has a double structure, it is bent to accumulate a larger elastic force than the above-mentioned conventional band-shaped elastic member. Therefore, there is no need to form an engaging recess for receiving the intermediate portion in the opening member in order to eliminate the escape of the force applied to the opening member by the elastic force when the elastic force accumulated in the elastic body is released due to the bending. .

[0011] In the lid structure according to the present invention, which is configured as described above, one of the lid body and the opening member has a rotation center axis,
Either the other of the lid body and the opening member has a bearing hole for rotatably supporting the rotation center axis, whereby the lid body is rotatably connected to the opening member. I can do it.

In the lid structure according to the present invention, which is characterized in that it is constructed as described above, the lid main body and the opening member are formed continuously so that the lid main body can rotate with respect to the opening member. It can be movably connected.

[0013] In the lid structure according to the present invention, which is configured as described above, it is preferable that the opening member is further provided with a recess for receiving the intermediate portion of the elastic body. Such a recess prevents the elastic body folded and thickened from increasing the outer appearance of the lid structure, particularly the outer appearance of the lid body.

In order to achieve the above object of the present invention,
Another lid structure according to the present invention is: a connecting member fixed to a member having an opening; and a connecting member is rotated between a closed position in which the opening is closed and an open position in which the opening is opened. A lid body movably provided; a lid holding means for releasably holding the lid body in a closed position; and a plate made of an elastic material and having both ends overlapped. The lid is fixed to the lid body, and the intermediate portion at both ends is pressed by the connecting member and bent by the movement of the lid body from the open position to the closed position, whereby elastic force is accumulated, and the lid holding member moves to the closed position of the lid body. And an elastic body for rotating the lid main body from the closed position to the open position by the accumulated elastic force when the holding of the cover is opened.

Another lid structure according to the present invention, characterized in that it is constructed as described above: the lid body and the connecting member are formed independently of the member to which the connecting member is fixed, and the connecting member The elastic body can be interposed between the connecting member and the lid main body before the connecting member is fixed to the member to which is fixed. Therefore, as compared with the above-described lid structure according to the present invention, not only the same effect can be obtained but also the assembling work is facilitated.

According to another lid structure according to the present invention having the above-described structure, one of the lid main body and the connecting member has a center of rotation similar to the above-described lid structure according to the present invention. A shaft, and the other one of the lid body and the connecting member has a bearing hole for rotatably supporting the rotation center axis, whereby the lid body is rotated with respect to the connecting member. They can be freely connected.

In the lid structure according to the present invention, which is characterized in that it is constructed as described above, the lid main body and the connecting member are formed continuously so that the lid main body can be rotated with respect to the connecting member. It can be movably connected.

In the lid structure according to the present invention characterized in that it is configured as described above, it is preferable that the connecting member is further provided with a recess for receiving the intermediate portion of the elastic body. Such a recess prevents the elastic body folded and thickened from increasing the outer appearance of the lid structure, particularly the outer appearance of the lid body.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] First, the overall structure of a lid structure 10 according to a first embodiment of the present invention will be described with reference to FIG. I do.

The lid structure 10 is provided rotatably between an opening member 12 having an opening 12a and a closed position where the opening 12a is closed and an opening position where the opening 12a is opened with respect to the opening member 12. And a lid body 14.

In this embodiment, the opening member 12 forms the upper wall of the container. The opening member 12 is formed independently of the other parts of the container and can be attached to the container so as to cover the upper opening of the container without the upper wall, or as another container upper wall. It can be formed integrally with the part. In this embodiment, the opening member 12 is formed of an elastic plastic material.

On the upper wall of the opening member 12, a recess 12b is formed around the opening 12a so as to surround the opening 12a.

In this embodiment, the container is used for storing a large number of wet tissue papers folded in a predetermined shape, and the large number of wet tissue papers are removed from the container by the opening 12a of the opening member 12.
Can be pulled out one by one.

At one edge of the lid body 14, a shaft supporting portion 14b provided with a pair of rotation center shafts 14a which are arranged concentrically and project in diametrically opposite directions is provided. It is formed to protrude along the edge. Lid body 1
4 is provided with an annular fitting projection 14c which is fitted into the concave portion 12b around the opening 12a of the opening member 12 to close the opening 12a when the lid main body 14 is arranged at the closed position. .

In this embodiment, the lid body 14 is also
Like the opening member 12, it is formed of an elastic plastic material.

On one side of the upper wall of the opening member 12, a lid body 14 is provided.
Shaft receiving portion receiving recess 1 for receiving shaft supporting portion 14b
2c is formed, and a pair of rotation center shafts 14a of the lid main body 14 are inserted into the shaft support portion receiving recesses 12c.
A pair of bearing holes 12d for rotatably supporting the pair of rotation center shafts 14a are formed. Inserting a pair of rotation center shafts 14a of the shaft support portion 14b into a pair of bearing holes 12d of the shaft support portion receiving recess 12c of the opening member 12,
This can be easily performed by bending at least one of the lid body 14 and the opening member 12 by utilizing the elasticity of the material of both the lid body 14 and the opening member 12.

In the vicinity of the shaft supporting portion 14b on the back surface of the lid body 14, an elastic body 16 which is formed in a plate shape from an elastic material and whose both ends are overlapped with each other is fixed. The curved intermediate portion of the elastic body 16 is interposed between the lid body 14 and the opening member 12. More specifically, in this embodiment, the elastic body 16 has a strip shape, and positioning holes 16a are formed at both ends overlapped with each other. The positioning holes 16a at both ends of the elastic body 16 are covered with positioning projections 14d provided at predetermined positions on the back surface of the lid body 14, and the elastic body protective cover 18 covers both ends of the elastic body 16 after that. At the predetermined position. This fixing can be performed by a known fixing means including an adhesive, for example. The elastic body protective cover 18 also has an engagement protrusion provided at one of the predetermined position and the elastic body protective cover 18 and engages with the engagement protrusion at one of the predetermined position and the other of the elastic body protective cover 18. A mating engagement recess is provided, and the combination of the engagement protrusion and the engagement recess can be detachably fixed to the predetermined position.

However, both ends of the elastic body 16 can be fixed to the above-mentioned predetermined positions without providing the elastic body protective cover 18 by a known fixing means including, for example, an adhesive, a screw, or a thermal caulking of the positioning projection 14d. .

An elastic body receiving recess 12e is formed at a predetermined position of the shaft supporting portion receiving recess 12c on the upper wall of the opening member 12.

The lid structure 10 further includes lid holding means 20 for holding the lid body 14 in the closed position. In this embodiment, the lid holding means 20 includes an engaging projection 20a provided on the other edge of the lid body 14 and the lid body 1
As shown in FIG. 1 (B), when the cover 4 is located in the closed position, the engaging member provided on the corresponding portion of the opening member 12 is engaged with the engaging protrusion 20a of the lid body 14 in the closed position. And a joint lever 20b.

The engaging lever 20b is formed integrally with the opening member 12, and when the external force is not applied, the engaging lever 20b is engaged with the engaging protrusion 20a of the lid body 14 in the closed position as shown in FIG. It is arranged at an engagement position where it can be engaged. When an external force is applied to the engagement lever 20b at the engagement position and the engagement lever 20b is bent by its own elastic force as shown by an arrow A in FIG. The engagement of the engagement lever 20b with the mating projection 20a is released, and the lid body 14 can be turned from the closed position to the open position.

The elastic body protective cover 18 holding the elastic body 18 is fixed at a predetermined position on the back surface of the shaft supporting portion 14b of the lid body 14, and the shaft supporting portion receiving recess 12 of the opening member 12 is further fixed.
c, a pair of bearing holes 12d,
b, when the pair of rotation center shafts 14a is inserted, the opening member 1
The cover body 14 is rotatably connected to the cover 2. At this time, as shown in FIG. 2A, the outer peripheral surface of the curved intermediate portion of the elastic body 16 contacts the bottom surface of the shaft support receiving recess 12c of the opening member 12. If a downward force is not applied to the lid body 14 in this state, the elastic body 16 is not bent against its own elastic force,
The lid body 14 is arranged at an open position. A part of the surface of the shaft supporting portion 14b of the lid body 14 disposed at the open position is in contact with the bottom surface of the shaft supporting portion receiving recess 12c of the opening member 12, which means that the lid body 14 is excessively opened. Is prevented.

When a downward force is applied to the lid body 14 disposed at the open position as described above, the lid body 14 is moved from the open position shown in FIG.
Are turned toward the closed position shown in FIG. During this time, the elastic member 16 is pressed against the bottom surface of the shaft supporting portion receiving recess 12c of the opening member 12, moves on the bottom surface toward the elastic member receiving recess 12e, and is bent so as to be bent over time. As a result, elastic force is accumulated in the elastic body 16. In this embodiment, since the intermediate portion of the elastic body 16 has a double structure in which two band plates are stacked, the elastic force accumulated in the elastic body 16 as a result is one band plate. Is much larger than that of the above-mentioned conventional elastic body having a single structure. The intermediate portion of the bent elastic body 16 is received in the elastic body receiving recess 12 e of the shaft support receiving recess 12 c of the opening member 12. Elastic receiving recess 12e
, The need to increase the thickness of the lid body 14 due to the elastic body 16 being bent and having an increased thickness is eliminated.

In FIG. 2B, the lid body 14 is opposed to the elastic force accumulated in the recessed elastic body 16 by the lid holding means 20 as shown in FIG. 1B. Held in the closed position.

In this state, when an external force is applied to the engagement lever 20b of the lid holding means 20, and the engagement lever 20b is bent by its own elastic force as shown by an arrow A in FIG. The engagement of the engagement lever 20b with the engagement projection 20a of the lid body 14 in the closed position is released, and the lid body 14 is automatically moved from the closed position to the open position by the elastic force accumulated in the elastic body 16 that is recessed. Is pivoted.

FIGS. 3A and 4B show a modification of the lid holding means 20. FIG. In these figures, the same components as those in the lid structure 10 of the first embodiment described above are given the same components in the lid structure 10 of the first embodiment described above. The same reference numerals as the reference numerals are used, and the detailed description is omitted.

In this modification, as shown in FIG. 4A, an engagement protrusion 20a is provided on the other edge of the lid body 14.
Is formed adjacent to the opening member 12, and a portion corresponding to the other edge of the lid body 14 on one side of the opening member 12 is provided when the lid body 14 is disposed in the closed position. The lid body 1 engages with another engagement protrusion 14 e of the lid body 14 and resists the elastic force accumulated in the elastic body 16.
An engagement groove 12h is formed to hold 4 in the closed position.

The corresponding portion of one side of the opening member 12 is further provided with an engaging groove 12h as shown in FIG.
A disengagement lever accommodation recess 12i is formed adjacent to the first engagement portion, and an engagement release lever 20'b is rotatably provided in the engagement disengagement lever accommodation recess 12i. The disengagement lever 20'b has a pair of rotation center shafts 20c concentrically extending in opposite directions to each other, and has an inner surface of the disengagement lever housing recess 12i. A pair of rotation center shafts 20c of the engagement release lever 20'b are inserted to form a pair of bearing holes 20d that rotatably support the pair of rotation center shafts 20c. Engagement lever receiving recess 12
i, disengagement lever 2 for a pair of bearing holes 20d
0′b is inserted into the opening member 1
At least one of the lever 4 and the engagement release lever 20'b is made of an elastic plastic material, and this can be achieved by bending either one of them.

The engagement release lever 20'b is formed with an engagement release projection 20d projecting toward the engagement groove 12h of the engagement release lever accommodating recess 12i. When the lid body 14 is placed in the closed position, as shown in FIG. 4 (A), the other one of the lid body 14 in the closed position is engaged with the disengagement projection 20d of the disengagement lever 20'b. One edge of the engaging projection 20a is overlapped. Then, an external force is applied to the disengagement lever 20'b, and the disengagement lever 20'b is turned into a pair of rotation center shafts 20c as shown by an arrow B in FIG.
, The disengagement projection 20d of the disengagement lever 20'b is moved to the position shown in FIG.
The engagement projection 20a of the lid body 14 in the closed position is pushed up.
As a result, the engagement of the other engagement protrusion 14e on the other edge of the lid body 14 with the engagement groove 12h in the engagement release lever accommodating recess 12i of the opening member 12 is released. As a result, the lid body 14 is closed by the elastic force of the elastic body 16 in which the elastic force is accumulated as described above by the lid body 14 being disposed in the closed position, as in the first embodiment described above. It is automatically rotated from the position to the open position.

The disengagement lever 20'b is rotatably disposed in the engagement release lever accommodating recess 12i of the opening member 12.
This can also be achieved by providing a pair of rotation center shafts instead of the pair of bearing holes 20d, and providing a pair of bearing holes instead of the pair of rotation center shafts 20c on the disengagement lever 20'b. The lid holding means 2 of the lid structure 10 of the first embodiment described above with reference to FIGS.
As shown in FIG. 7 (A) and FIG. 4 (B), by being integrally formed with the opening member 12 like the 0 engagement lever 20b (see FIG. 1 (B)). It can also be elastically rotatable between the disengaged position. In this case, if no external force is applied to the engagement release lever 20'b, the engagement release lever 20'b is located at the engagement position.

[Second Embodiment] Next, FIG.
The configuration of the lid structure 10 'according to the second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the same components as those of the lid structure 10 according to the first embodiment of the present invention described above with reference to FIGS. 1 and 2A and 2B. Members are indicated using the same reference numerals as those of the same constituent members of the lid structure 10 of the first embodiment, and detailed description thereof will be omitted.

The difference between the lid structure 10 ′ according to the second embodiment and the lid structure 10 according to the first embodiment in the structure of the connecting member 3 fixed to the opening member 12 is as follows.
0, which means that the shaft supporting portion 14b of the lid body 14 is rotatably connected to the connecting member 30 between the open position and the closed position. Further, the elastic body protective cover 18 ′ is detachably fixed to the predetermined position near the shaft supporting portion 14 b on the back surface of the lid main body 14 together with the elastic body 16.

More specifically, in this embodiment, the connection member 30 is fixed to the opening member 12 by connecting the connection member 30 formed independently of the opening member 12.
Is removably engaged with the opening member 12.

For this purpose, a connecting member accommodating recess 32 is provided on one side of the opening member 12, and the connecting member accommodating recess 32 is provided.
A connecting member 30 is provided detachably. In this embodiment, the engaging recess 32a is provided in the connecting member housing recess 32, and the engaging recess 32 of the connecting member housing recess 32 is provided.
a engaging projection 30a detachably engaging with the connecting member 30.
It is provided in.

The connecting member 3 with respect to the connecting member receiving recess 32
The detachable engagement 0 is such that at least one of the opening member 12 and the connecting member 30 is formed of a plastic material having elasticity, and any one of the above members can be elastically bent. It is achieved by being. In this embodiment, the connecting member 30 is made of a plastic material having elasticity like the lid main body 14, and can be elastically bent.

The detachable engagement is achieved by providing an engagement projection in the connecting member accommodating recess 32 and connecting the connecting member accommodating recess 3.
This can also be achieved by providing the coupling member 30 with an engagement recess that detachably engages with the second engagement protrusion.

However, the fixing of the connecting member 30 to the opening member 12 can be performed directly by a known fixing means including, for example, an adhesive or a screw.

The detachable connection of the elastic body protective cover 18 'to a predetermined position near the shaft supporting portion 14b on the back surface of the lid body 14 is provided at the predetermined position as shown in FIG. This is achieved by a combination of the engaging projection 40a and the engaging recess 40b provided in the elastic body protective cover 18 '. However, the detachable connection of the elastic protective cover 18 'is provided with the engaging recess at the predetermined position and the elastic protective cover 18' is provided with the engaging projection engaged with the engaging recess. This can also be achieved by: Further, it is also possible to use known detachable fixing means such as screws and clips. In addition, the elastic body protective cover 18 'at a predetermined position near the shaft support portion 14b on the back surface of the lid main body 14 is, for example, similar to the case of the elastic body protective cover 18 of the first embodiment described above. It may be directly fixed by a known fixing means such as an adhesive.

In this embodiment, the connecting member 30
The shaft supporting portion 14b of the lid main body 14 is formed continuously and integrally with one side surface, so that the lid main body 14 is connected to the connecting member 30 and thus the opening member in which the connecting member 30 is detachably provided. 12, it is rotatable between an open position and a closed position.

The connecting member 30 has an elastic body receiving recess 30b for receiving an intermediate portion of the elastic body 16 fixed at the predetermined position of the lid body 14.

In FIG. 6B, an elastic body protective cover 18 'is removably fixed together with the elastic body 16 to a predetermined position near the shaft support portion 14b on the back surface of the lid body 14, and further connected. The member 30 is connected to the connecting member receiving recess 3 of the opening member 12.
2 shows a state in which it is detachably fixed. In this state, if no external force toward the closed position is applied to the lid body 14, the outer peripheral surface of the curved intermediate portion of the elastic body 16 is pressed against the bottom surface of the elastic body receiving recess 30 b of the connecting member 30 and the bottom surface Slid over and flexed in time to bend, resulting in elastic 16
The elastic force is accumulated. In this embodiment, since the intermediate portion of the elastic body 16 has a double structure in which two band plates are stacked, the elastic force accumulated in the elastic body 16 as a result is one band plate. Is much larger than that of the above-mentioned conventional elastic body having a single structure. The bent intermediate portion of the elastic body 16 is received in the elastic body receiving recess 30 b of the connecting member 30. The presence of the elastic body receiving recess 30b eliminates the need to increase the thickness of the lid body 14 due to the elastic body 16 being bent and having an increased thickness.

In FIG. 6B, the lid main body 14 is opposed to the elastic force accumulated in the recessed elastic body 16 by the lid holding means 20 as shown in FIG. 1B. Held in the closed position.

In this state, when an external force is applied to the engagement lever 20b of the lid holding means 20 and the engagement lever 20b is bent by its own elastic force as shown by an arrow A in FIG. The engagement of the engagement lever 20b with the engagement projection 20a of the lid body 14 in the closed position is released, and the lid body 14 is automatically moved from the closed position to the open position by the elastic force accumulated in the elastic body 16 that is recessed. Is pivoted.

In this embodiment, the lid body 14 is provided so as to be rotatable with respect to the connecting member 30 by being formed integrally with the connecting member 30 continuously. 30 is provided with a pair of rotation center shafts, and one of the lid body 14 and the connecting member 30 is provided with a pair of bearing holes for rotatably supporting the pair of rotation center shafts. The lid body 14
Can be provided rotatably with respect to the connecting member 30.

In the above-described two embodiments, the elastic body protective cover 18 or 18 'is formed independently of the lid main body 14. By being formed continuously and integrally adjacent to the position, an open position separated from the predetermined position and opened, and a closed position overlapped and fixed with the elastic body 16 at the predetermined position, It can also be pivotable between

In order for the elastic protective cover to be rotatable between the open position and the closed position with respect to the connecting member 30, one of the elastic protective cover and the connecting member 30 has a pair of rotation centers. A shaft is provided, and an elastic protective cover and a connecting member 30 are provided.
It can also be achieved by providing a pair of bearing holes for rotatably supporting the pair of rotation center shafts in any one of the above.

[0058]

As is clear from the above description, according to the lid structure according to the present invention, it is possible to provide a lid structure which can be easily assembled and which is not damaged by an assembler. Can be done.

[Brief description of the drawings]

FIG. 1 (A) is a schematic exploded perspective view of a lid structure according to a first embodiment of the present invention; and (B)
FIG. 4A is a cross-sectional view schematically showing a state in which the lid holding means in the lid structure of FIG.

FIG. 2A is a partially enlarged cross-sectional view showing a state in which the lid main body is arranged at an open position by an elastic force of an elastic member in the lid structure of FIG. 1A; 1B is a partial view showing a state in which the lid body is disposed at the closed position against the elastic force accumulated by recessing the elastic member inward in the lid structure of FIG. FIG.

FIG. 3 is a modification schematically showing a modification of the lid holding means in the lid structure according to the first embodiment of the present invention.

4A is a longitudinal sectional view schematically showing a state in which a modification of the lid holding means of FIG. 3 holds the lid main body in a closed position; and FIG. FIG. 10 is a longitudinal sectional view schematically showing a state in which the modified example of the lid holding means releases the holding of the lid main body from the closed position.

FIG. 5 is a schematic exploded perspective view of a lid structure according to a second embodiment of the present invention.

FIG. 6A is a partially enlarged cross-sectional view showing a state where the lid main body is disposed at an open position by the elastic force of the elastic member in the lid structure of FIG. 5; )
FIG. 6 is a partially enlarged cross-sectional view showing a state where the lid main body is disposed at a closed position against the elastic force accumulated by recessing the elastic member inward in the lid structure of FIG. 5. .

[Explanation of symbols]

 10, 10 'Lid structure 12 Opening member 12a Opening 12d Bearing hole 12e Elastic body receiving recess 14 Lid body 14a Rotation center axis 16 Elastic body 20 Lid holding means 30 Connecting member 30b Elastic body receiving concave

Claims (8)

[Claims] An opening member having an opening; a lid body rotatably provided with respect to the opening member between a closed position in which the opening is closed and an open position in which the opening is opened; And a lid holding means for releasably holding the lid in a closed position; and a plate-shaped member made of an elastic material, both ends of which are fixed to the lid body in a state where both ends are overlapped, and from the open position of the lid body. By moving to the closed position, the intermediate portion of the both ends is pressed by the connecting member and bends, whereby elastic force is accumulated, and the accumulated elasticity is released when the lid holding member is released from holding the lid body in the closed position. An elastic body for rotating the lid main body from the closed position to the open position by force. 2. One of the lid body and the opening member has a rotation center axis, and the other of the lid body and the opening member has a bearing hole rotatably supporting the rotation center axis. The lid structure according to claim 1, comprising: 3. The lid structure according to claim 1, wherein the lid body and the opening member are formed continuously. 4. The lid structure according to claim 1, wherein the opening member is provided with a recess for receiving the intermediate portion of the elastic body. 5. A connecting member fixed to a member having an opening; and a lid rotatably provided on the connecting member between a closed position in which the opening is closed and an open position in which the opening is opened. A main body; a lid holding means for holding the lid main body in a closed position so as to be openable; and a plate made of an elastic material, with both ends fixed to the lid main body in a state where both ends are overlapped, When the main body is moved from the open position to the closed position, the intermediate portions of the both ends are pressed by the connecting member and flexed, whereby elastic force is accumulated, and when the holding of the lid body by the lid holding member in the closed position is opened. An elastic body for rotating the lid main body from the closed position to the open position by the accumulated elastic force. 6. One of the lid body and the connecting member has a rotation center axis, and the other of the lid body and the connection member has a bearing hole for rotatably supporting the rotation center axis. The lid structure according to claim 5, comprising: 7. The lid structure according to claim 5, wherein the lid body and the connecting member are formed continuously. 8. The lid structure according to claim 5, wherein a recess for receiving the intermediate portion of the elastic body is provided in the connecting member.