JP3242091B2 - Lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, the cover of a console box of an automobile on both sides (a driver side and a passenger side).
The present invention relates to a lid opening / closing device that can be opened and closed from the front.

[0002]

2. Description of the Related Art Heretofore, with respect to this type of apparatus, the applicant has already disclosed in Japanese Patent Application No. 4-67041 that there is little possibility that the lid is detached by the operation of opening the lid, and the operating force and the operation stroke are reduced. A lid opening and closing device that is easy to set was proposed.
This is because the retractable hinge pins are provided on both sides of the lid, and when one of the two operation buttons provided corresponding to each hinge pin of the lid is pushed in, the corresponding hinge pin is pulled through the tension cable. It is configured to be immersed in the lid and open the lid to one side.

This device has an engaging means for engaging an operation button pushed in so as to maintain a state in which the hinge pin is submerged, and after opening the lid by pushing one operation button by a predetermined amount. In addition, the interaction between the engaging means and the rod makes it impossible to operate other operation buttons, and has an excellent effect of preventing the lid from coming off.

[0004]

However, in the above opening and closing device, the engagement means engages with the operation button when the hinge pin is retracted and its fitting into the bearing hole is released. Since it is impossible to physically perform the disengagement and the engagement at the same time, strictly speaking, the operation button is slightly changed from the disengagement of the hinge pin to the engagement of the engagement means. Had to be pushed further.

[0005] For this reason, although it is an extremely delicate operation, depending on the pushing amount of the operation button, a state may occur in which the engagement of the hinge pin is released but the engagement means is not engaged. In this case, when the lid is opened and the hand is released from the operation button, the operation button returns to the original state, so that it is possible to push in another operation button with the lid opened to one side, and to fit the other hinge pin. Was also released and the lid could come off.

The present invention has been made in view of such circumstances, and has as its object to provide a lid opening / closing device capable of reliably preventing a lid from being detached by an operation of opening the lid. And

[0007]

The gist of the present invention to achieve the above-mentioned object lies in the following items. [1] A lid opening / closing device that allows a lid (2) to be opened and closed from both right and left sides. In this state, the cover (2) is rotatably fitted into a bearing hole (40) formed at the left end of each of the front and rear inner surfaces of the opening where the cover (2) is attached, and serves as a swing shaft when the cover (2) is opened from the right. A pair of left hinge pins (11a, 11b) and right ends of both front and rear end surfaces of the lid (2) are provided so as to be able to protrude and retract with their axes aligned with each other. A pair of right hinge pins (12a, 12b) that rotatably fit into bearing holes (40) formed at the right ends of the front and rear inner surfaces and serve as a swing axis when the lid (2) is opened from the left. , The left hinge pin (11a, 11b) and the right hinge pin. Adipic (12a, 12
b) can be operated in the closed state of the lid body (2) fitted in the bearing hole (40), and the left hinge pin (11a, 11b) or the right hinge pin (12a, 12b) is selectively operated by the operation. Opening operation means (15, 16, 17a, 17) for moving until it is submerged in the lid (2).
b, 18a, 18b) and the left hinge pin (11a, 11b) and the right hinge pin (12a, 12b).
When the lid (2) fitted in the bearing hole (40) is closed, the lower surface of the bearing hole (40) is slightly pushed down in the closing direction. A vertically movable movable holding member (50)
A lid opening and closing device characterized by comprising:

[2] The lid (2) and the opening end face (1)
(b) an elastically deformable cushion material (55) that fills a gap corresponding to a vertical movement stroke of the holding member (50) is attached to a key point between the lid member and (b). apparatus.

Next, the operation will be described. According to the lid opening / closing device of the present invention, the lid (2) is attached to the opening, and two pairs of hinge pins (11a, 11b, 12a, 12b) are respectively provided in the bearing holes (40) of the opening edge (1a). When in the fitted state, the state where the lid (2) closes the opening is maintained.

When the lid (2) is opened, the opening operation means (15, 16, 17a, 17b, 18a, 18)
b), the left hinge pin (11a, 11b)
Alternatively, the pair of right hinge pins (12a, 12b) may be moved so as to be selectively immersed in the lid (2).

For example, when the right side of the lid (2) is to be opened toward the left side, the opening operation means (15, 16, 17)
a, 17b, 18a, 18b), only the right hinge pin (12a, 12b) is immersed in the lid (2), and the left hinge pin (11a, 11b) is used as a swing axis to make the lid (2) right. Can be opened from

Further, the remaining hinge pins are fitted into the bearing holes (40) at the opening edges to which the lid (2) is attached unless the opening operation means (15, 16, 17a, 17b, 18a, 18b) is operated again. The lid (2)
Does not come off easily.

Further, the opening operation means (15, 16, 17a,
17b, 18a, and 18b) can be operated only when the lid (2) is in a closed state. By this operation, the left hinge pin (11a, 11b) or the right hinge pin (12a, 12b) can be operated.
12b) moves only one of them selectively so as to be immersed in the lid (2). Therefore, when the lid (2) is in the open state, the opening operation means (15, 16, 17a, 17b). , 1
8a and 18b) are not carelessly operated, and there is no possibility that the lid (2) will come off.

Further, a holding member (50) urged upward so as to be vertically movable on the lower surface side of the bearing hole (40) so that the lid (2) in the closed state can be slightly pushed down in the closing direction. In this case, when the holding member (50) is pushed down by the lid (2), the width of the bearing hole (40) in the vertical direction is increased, and the holding member (50) is urged upward. This reduces the vertical width of the bearing hole (40).

Accordingly, each hinge pin (11a, 11a)
b, 12a, 12b) at wide vertical positions with bearing holes (4
0), and when the lid (2) is in the closed state, the play of each hinge pin (11a, 11b, 12a, 12b) in the bearing hole (40) is eliminated, and the play is loose. Can be prevented.

Further, the lid (2) and the opening end face (1)
If a cushion material (55) that can be elastically deformed to fill a gap corresponding to a vertical movement stroke of the holding member (50) is attached to a key point between the lid member (2) and the lid member (2), In addition to securing the stroke, it is possible to prevent the lid (2) from rattling against the opening end surface (1b).

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 are top views of a console box to which the lid opening / closing device according to the present embodiment is applied. This console box is made of, for example, a synthetic resin, and includes a rectangular parallelepiped box main body 1 and a lid 2 that closes an upper opening of the box main body 1, as shown in FIG.

The lid opening and closing device includes left hinge pins 11a and 11b which are provided so as to be able to protrude and retract with their axes aligned with the left ends of both ends of the lid 2 in the front-rear direction (vertical direction in FIG. 1). Right hinge pin 12a, which is provided so as to be able to protrude and retract with its axis aligned with the right end of the surface,
12b and compression coil springs 13a, 13b, 14a, 14b for urging these hinge pins in the protruding direction, respectively.
(Biasing member), a left operation button 15 or a right operation button 16 slidably provided on the lid corresponding to each pair of the hinge pins, and two hinge pins corresponding to these operation buttons 15 and 16. And the pull cables 17a, 17b, 18a, 18b for connecting
To have. Here, the left operation button 15, the right operation button 16, the pull cables 17a, 17b, 18
a and 18b constitute opening operation means.

The lid opening / closing device is provided with a left swinging member 19 or a right swinging member 20 which engages with the operation buttons 15 and 16 which are pushed to the engagement positions to be described later to prevent sliding in the return direction. And the two operation buttons 15, 16
Rod 2 slidably arranged between the two to prevent simultaneous operation
1 and 2 in the lid 2. Here, the left swinging member 19 and the right swinging member 20 constitute an engaging means.

As shown in FIGS. 3 and 4, this lid opening / closing device includes the hinge pins 11a, 11a on both inner surfaces of an edge 1a located before and after the upper opening of the box body 1.
b, 12a, and 12b are fitted with four bearing holes 4 respectively.
0, and the lower surface side of these bearing holes 40 is constituted by a lid holder 50 (holding member) that can move up and down.

The left hinge pins 11a, 11b or the right hinge pins 12a, 12b are rotatably fitted in the bearing holes 40 in the box body 1 in the protruding state, and are respectively arranged on the same axis, as shown in FIG. The lower surface of the tip is obliquely cut.

The left operation button 15 or the right operation button 16 is provided at the left or right end of the lid 2 on the side where the corresponding hinge pin is provided (the left operation button 15 is located at the left end, and the right operation button 16 is located at the left end. Is disposed at the right end), and the sliding direction is the left-right direction along the upper surface of the lid. That is, on the lower surface of the left and right ends of the lid 2, the concave portions 3, 4 having a rectangular cross section extending inward along the upper surface of the lid 2 are formed at the same position in the front-rear direction of the lid 2. The operation buttons 15 and 16 are slidably fitted in the recesses 3 and 4, respectively.

Sliding shafts 22 and 23 are formed at both ends of the rear end surface of the left operation button 15 or the right operation button 16 so as to extend through the rear walls of the recesses 3 and 4, respectively.
The large diameter portions at the tips of these sliding shafts 22 and 23 are
Operation buttons 15, 16 by contacting the back wall of the
Stoppers 24 and 25 for restricting the sliding strokes of these operation buttons 15 and 16 to the outside so as not to protrude from the left and right end surfaces of the lid 2.

Compression coil springs 26 and 27 are mounted around the sliding shafts 22 and 23 and between the operation buttons 15 and 16 and the inner walls of the recesses 3 and 4, respectively. , 16 outwardly. Protrusions 28a, 28b, 29a, 29b are formed from both side surfaces of the left operation button 15 or the right operation button 16, respectively, and extend through the side walls of the recesses 3, 4, respectively. The pull cables 17a, 17b, 18a,
One end of 18b is fixed. The protrusions 28a, 28b, 29
a, 29b penetrate, the operation buttons 15, 16
An elongated hole (not shown) is formed in the sliding direction of, so that interference does not occur.

The sliding stroke of the operation buttons 15 and 16 is set to a value equal to or greater than the stroke for each hinge pin to completely fall out of the bearing hole 40 and to be immersed in the lid 2. The positions of the operation buttons 15 and 16 when completely withdrawn from the bearing hole 40 and immersed in the lid 2 are the engagement release positions. That is, when the tip of the operation button 15, 16 pushed to a position of the one-dot chain line indicated by reference numeral X ₂ (fitting release position) in FIG. 2,
The tip of each hinge pin is in the set that is drawn to the position indicated by reference numeral Y ₂ in FIG. 3.

On the lower side of the operation buttons 15 and 16, a left swing member 19 or a right swing member 20 is provided.
Recesses 15a and 16a in which
Steps 15b, 16b with which the left-side rocking member 19 or the right-side rocking member 20 engages are provided in these recesses 15a, 16a.
Are formed.

The tension cables 17a, 17b, 18a,
18b, from the left and right end sides of the lids 15, 16 so that the operation direction of the operation buttons 15, 16 for releasing the fitting of the corresponding hinge pins is the direction of pushing them into the lid 2. The operation buttons 15 and 16 are attached to the protrusions 28a, 28b, 29a, and 29b of the operation buttons 15 and 16, respectively.

That is, at the left and right ends of the lid 2,
The protrusions 28a, 28 are provided on both sides of the recesses 3, 4, respectively.
b, 29a, and 29b, located closer to the end of the lid 2,
Sliding contact pins 30a, 30b, 31a, 31b slidingly contacting the pull cables 17a, 17b, 18a, 18b, respectively.
Are provided, and tension cables 17a, 17b, 18a,
18b, these sliding contact pins 30a, 30b, 3
The cover 2 is attached to the protrusions 28a, 28b, 29a, 29b from the end side of the lid 2 by being wound around 1a, 31b.

Incidentally, as described above, the tension cables 17a,
The means for laying 17b, 18a and 18b is not limited to the sliding contact pin as described above, and for example, a rotatable pulley may be used. Also, the tension cables 17a, 17b, 1
The length of the left hinge pins 11a, 11b
Alternatively, the right hinge pins 12a and 12b are
0, and the left operation button 15 or the right operation button 16 is in a free state (the stoppers 24 and 25 are working,
When the end surface of the left operation button 15 or the right operation button 16 coincides with the position of the end surface of the cover 2), as shown in FIG. Have been. Further, as the material of the tension cables 17a, 17b, 18a, 18b, various materials can be used as long as they have sufficient flexibility and low elongation. For example, steel wire, piano wire, silk thread, etc. are used. can do.

Left swing member 19 or right swing member 2
Numeral 0 denotes a shape in which a tension cable such as a steel wire is bent into an elongated loop shape, and both ends of the tension cable are stretched in parallel in the horizontal direction. Each end is inserted into and supported by two lateral holes 32 and 33, and swings up and down while accompanied by overall deformation.

The left swinging member 19 or the right swinging member 20 has one end outside the loop portion bent downward toward the opening end face 1b of the box body 1 as shown in FIGS. In a natural state (an undeformed state), the position of attachment to the projections 32 and 33 is set such that one end extends downward from the lower surface of the lid 2 and the other end on the inside faces upward. Accordingly, when the left operation button 15 or the right operation button 16 is pushed to a predetermined engagement position, the other end of the left swing member 19 or the right swing member 20 is automatically connected to the step portions 15b, 16b. It is designed to engage.

Here, the engagement position is a position just before the engagement release position at which the engagement of the hinge pin is released. That is, when the tip of the operation button 15, 16 as shown in FIG. 2 is pushed to the position indicated by reference numeral X ₁ (engagement position),
The tip of each hinge pin is in the position indicated by reference numeral Y ₁ in FIG. 3, has a configuration that each hinge pin is fitted still in the bearing hole 40.

The rod 21 is disposed so that both ends penetrate through the inner wall of the recesses 3 and 4, respectively, and is slidable in the same direction as the operation buttons 15 and 16. When one of the buttons slides to the engagement position, both ends have a length substantially contacting the inner end faces of the two operation buttons 15 and 16. Note that a compression spring 35 is provided between one end of the rod 21 and a wall forming the inner surface of the recess 4 to prevent the rod 21 from rattling. Here, the substantially contact length means that it is not always necessary to make contact, and at least one of the operation buttons is pushed into the engagement position, and is slid in the return direction by the engagement means. In a state where
This means that the other operation button contacts the end face of the rod 21 before sliding to the disengaged position.

In this case, as shown in FIGS. 3 and 4, the lid holder 50 has a rectangular parallelepiped fitting portion 51, and the fitting portion 51.
And a support portion 52 extending in an L-shape from one side of the upper end. The lid holder 50 is vertically movable by fitting its fitting portion 51 into a rectangular concave portion 41 formed at a position adjacent to each bearing hole 40 in the opening end face 1b of the box body 1. Reference numeral 52 extends into the wall surface of the edge 1a of the box body 1 to form the lower surface of the bearing hole 40. Also, this lid holder 5
The reference numeral 0 designates an upward movement stroke of a screw 53 which penetrates the fitting portion 51 and is screwed into the bottom of the concave portion 41, and the outer periphery of the screw 53 and the bottom surface of the fitting portion 51 and the concave portion 41. It is urged upward by a compression spring 54 disposed therebetween.

The vertical movement of the lid holder 50 changes the size of the bearing hole 40 in the vertical direction. When the lid holder 50 is at the uppermost position, the hinge pin 11
The uppermost position of the lid holder 50 is set by the screwing amount of the screw 53 or the like so that the a, 11b, 12a, and 12b can be fitted in a small gap without play.

The downward movement of the lid holder 50 makes it possible to finely move the lid 2 in the closed state downward, but the lid holder 50 or the lid 2 that determines the downward stroke of the lid 2 can be moved. The gap D ₁ or D ₂ (shown in FIG. 3) with the opening end face 1b is formed by the engagement means 1 when the lid 2 is pushed down by lowering the lid holder 50.
9 and 20 are large enough to be pushed by the opening end face 1b and to swing to release the engagement with the operation buttons 15 and 16.

Further, the edge 1a of the box body 1
As shown in FIGS.
An inclined surface 4 inclined so as to protrude downward at a position where the lower surface of the tip of each hinge pin at the position indicated by ₁ abuts.
2 are formed. Further, a cushion member 55 made of, for example, a foamed resin and having a high elasticity is attached to the opening end surface 1b of the box body 1, and the above-described reference numerals are used in almost all portions except for portions where the engagement means 19 and 20 come into contact. fills a gap indicated by D _2.

Next, the operation of the above embodiment will be described.
First, as shown in FIG. 1, the lid 2 is attached to the upper opening of the box body 1, and the left hinge pins 11a, 11b and the right hinge pins 12a, 12b are fitted into the bearing holes 40 of the opening edge 1a, respectively. In some cases, the springs 13a, 13b, and 1 bias the hinge pins toward the fitting side.
Unless the left operation button 15 or the right operation button 16 is pressed by the forces of 4a and 14b, the state where the lid 2 closes the opening is maintained. At this time, the left swinging member 19 or the right swinging member 20 is in a deformed state in which the inner end thereof is in a state of riding on the steps 15b and 16b of each of the left operation button 15 or the right operation button 16. I have. The lid holder 50 is at the uppermost position, and each hinge pin is held without play.

To open the lid 2 from the right side, for example, place a hand near the right end operation button 16 on the right end of the lid 2 and use the right operation button 1 with your finger.
If you push and pull 6, you can open it with one touch. That is, the pushing of the right operating buttons 16 to the fitting release position _{X 2} shown in FIG. 2, the right side hinge pins 12a, wherein the 12b only tension cable 18a, respectively pulled through 18b in lid 2 code _{Y 2} , The lid 2 can be opened from the right side using the left hinge pins 11a and 11b as the swing axis.

On the other hand, the left operation button 15 on the left end of the lid 2
When the user puts his hand around the area with the finger and pushes the left operation button 15 to the disengagement position with his / her finger and pulls, similarly, only the left hinge pins 11a and 11b are pulled by the pull cables 17a and 1b.
Since the door 2 is pulled through the lid 7b and is pulled into the lid 2, the lid 2 can be opened with one touch from the left side using the right hinge pins 12a and 12b as a swing axis as shown in FIG.

At this time, for example, when the left operation button 15 is pushed to the disengagement position to open the lid 2 from the left, the left operation button 15 always passes through the engagement position. 3, the left swing member 19 is engaged with the left operation button 15 as shown in FIGS. That is, as shown in FIG. 5, the left swing member 19 automatically swings counterclockwise by the restoring force from its deformed state, and the inner end of the left swing member 19 is
Automatically engages with the step 15b of the left side operation button 15
Is prevented from returning outside the engagement position. Further, the rod 21 is interposed between the two operation buttons 15 and 16 and slides the right operation button 16 inward from the disengaged position even if an external force in the pushing direction is applied to the right operation button 16. Do not let.

Therefore, once the lid 2 is opened to any side, the hinge pin on the opened side once retracted does not protrude outside the position (Y ₁ ) corresponding to the engagement position, and There is no possibility that the remaining hinge pins supporting the lid 2 are pulled in and the lid 2 comes off. This is exactly the same when the lid 2 is opened from the right side. In this case as well, in the process of pressing the right operation button 16, the lid 2 always passes through the engagement position, and as shown in FIG. The right operation button 16 is engaged, and the rod 21 operates similarly.

Next, in order to close the lid 2 to its original state, the opened lid 2 is simply folded down and closed, and further until the lid 2 comes into contact with the upper opening end surface 1b of the box body 1 (or the supporting portion 52 of the lid holder 50). Until it comes into contact with the opening end face 1b). Then, at first close is the course, the hinge pin of the code position indicated by Y ₁ open side which projects up (position corresponding to the engaged position), according to abut the inclined inclined surface 42 of the box body 1 Once it is pushed in, it re-projects at the position of the bearing hole 40 to automatically and smoothly fit into the bearing hole 40.

When the lid 2 is further pushed down with the lid holder 50 descending from this position, the outer end of the open-side engaging means is brought into the open end face 1b of the box body 1.
Pushed swings, out of engagement with the stepped portion of the operation button and the end of the inner hinge pin is returned to a position fit entirely indicated by symbol Y _0, also the spring when the hand is released By the restoring force of 54, the lid 2 also returns to the normal closed position.

That is, for example, when the lid 2 opened from the left side is closed, the left side swing member 19 is pushed by the opening end face 1b of the box body 1 at the outer end thereof, and swings clockwise in FIG. The engagement between the outer end of the left swing member 19 and the step 15b is released. Therefore, the left operation button 15 or the left hinge pins 11a, 11b
The spring 13a, the flow returns to the original position by the restoring force of 13b or spring 26 _{X 0} or _{Y 0} (shown in Figure 1 and 3).

As described above, with the lid opening / closing device, the lid 2 can be opened and closed with one touch on either the left or right side, and there is no possibility that the lid 2 will come off at this time. This is because the left operation button 15 or the right operation button 16 is provided separately on the left and right, and the possibility of pressing the opposite operation button to open the lid 2 on either side is extremely low. Even if the operation button is pressed, the operation button cannot slide to the disengaged position by the action of the rod 21 and the left swing member 19 or the right swing member 20, and the left hinge pin 11a, 11b or right hinge pin 12
This is because it is unlikely that both a and 12b will be in the retracted state.

In the above cover opening / closing device, the required stroke of the left operation button 15 or the right operation button 16 (sliding distance to the disengagement position) can be controlled by pulling the tension cables 17a, 17b, 18a, 18b. The pressing force required to slide the left operation button 15 or the right operation button 16 is determined uniquely (in the above embodiment, equal to the stroke of each hinge pin). 26, which is substantially equal to the restoring force (especially, when a pulley is used instead of the sliding contact pins 28a, 29a, etc., there is almost no resistance due to friction). For this reason, it is extremely easy to set the operation stroke and the operation force to optimal values by design.

Each of the hinge pins 11a, 11b, 12
When the cover 2 is opened, the buttons a and 12b and the operation buttons 15 and 16 are always stored inside and are not exposed to the outside. Further, tension cables 17a, 17b, 18 serve as operating force transmitting members for retracting the hinge.
Since the configuration uses a and 18b, the structure can be simplified and the weight can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, but may have various modifications. For example, the sliding contact pin 28
a, 28b, 29a, 29b may be provided with a pulley, or the pull cables 17a, 17b, 18a,
By changing the routing of 18b, the relationship between the amount of movement of each hinge pin and each operation button is set to, for example, 2: 1 so that the operation stroke of the operation button for retracting each hinge pin can be reduced. Further, the engaging means may be constituted by a link urged in the engaging direction by a spring. Furthermore, the end of the engaging means does not protrude from the lower surface of the lid 2, and a projection is formed on the opening end face 1b of the box body 1, and when the lid 2 is pushed down, this projection is You may make it penetrate inside and push the edge part of an engagement means. By doing so, the beauty of the back side of the lid 2 can be improved.

[0050]

According to the lid opening / closing device of the present invention, only the hinge pin on one side is released by operating the opening operation means, and the lid can be opened on either the left or right side with one touch. In addition, it is possible to reliably prevent the lid from being accidentally detached.

[Brief description of the drawings]

FIG. 1 is a plan view showing a lid opening / closing device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a lid opening / closing device according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along the line A in FIG. 1;

FIG. 4 is a perspective view showing a peripheral configuration of a bearing hole in the lid opening and closing device according to the embodiment of the present invention.

FIG. 5 is a side view showing a lid opening / closing device according to an embodiment of the present invention.

FIG. 6 is a side view showing a lid opening / closing device according to an embodiment of the present invention.

[Explanation of symbols]

2 lid 11a, 11b left hinge pin 12a, 12b right hinge pin 13a, 13b, 14a, 14b urging member 15 left operation button 16 right operation button 17a, 17b, 18a, 18b tension cable (15, 16, 17a, 17b, 18a, 18b opening operation means) 19 left swinging member 20 right swinging member 21 rod 40 bearing hole 50 holding member (lid holder)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05D 15/50 B60R 7/04

Claims (2)

(57) [Claims] 1. A lid opening / closing device which enables a lid to be opened and closed from both left and right sides, wherein the lid is provided at the left end on both front and rear end faces of the lid so as to be able to protrude and retract with their axes aligned with each other. A pair of left hinge pins, which are rotatably fitted into bearing holes formed at the left ends of both front and rear inner surfaces of the opening to be attached, and serve as pivot axes when the lid is opened from the right side; At the right end of the surface, it is provided so as to be able to come and go with the axes coincident with each other, and in the protruding state, it is rotatably fitted into bearing holes formed at the right end on both front and rear inner surfaces of the opening to which the lid is attached, and the lid is left A pair of right hinge pins serving as a swing axis when the cover is opened from the door, and the left hinge pin and the right hinge pin can be operated with the lids fitted in the bearing holes in a closed state, and the operation allows the left hinge pin or the left hinge pin to be closed. Opening means for selectively moving the right hinge pin until it is immersed in the lid body. In the closed state of the lid body in which the left hinge pin and the right hinge pin are respectively fitted in the bearing holes, the lid body is further closed. A lid opening / closing device, wherein a lower surface side of the bearing hole is vertically movably urged upward so as to be slightly pushed down. 2. At an important point between the lid and the opening end face,
2. The lid opening / closing device according to claim 1, further comprising an elastically deformable cushion material that fills a gap corresponding to a vertical movement stroke of the holding member.